CN109556549B - Three-coordinate measuring bracket shared by multiple vehicle types and white vehicle bodies - Google Patents
Three-coordinate measuring bracket shared by multiple vehicle types and white vehicle bodies Download PDFInfo
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- CN109556549B CN109556549B CN201910043841.3A CN201910043841A CN109556549B CN 109556549 B CN109556549 B CN 109556549B CN 201910043841 A CN201910043841 A CN 201910043841A CN 109556549 B CN109556549 B CN 109556549B
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- 238000011161 development Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 10
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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
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a three-coordinate measuring bracket shared by multiple vehicle body in white, which comprises a hundred-hole bottom plate, wherein a measuring bracket unit is fixedly connected to the hundred-hole bottom plate, a X, Y, Z mechanism capable of adjusting a large size is arranged on the measuring bracket unit, a fine adjustment mechanism with a small size is arranged on the measuring bracket unit, an ultra-difference value of X, Y, Z is measured through a positioning mechanism arranged on the upper part of the measuring bracket unit, and the fine adjustment mechanism can reach a fine size reference. The invention comprises measurement benchmarks of different vehicle types, so that a benchmark system does not need to convert during measurement to directly obtain a measurement result, the working efficiency is improved, only one set of measurement brackets is required to be maintained and managed, the management and maintenance costs and time of a plurality of measurement brackets are saved, the project development cost and the material cost are saved, the development time and the energy of developers are also saved, and the practical problems of single function, complex operation and low efficiency in the prior art of the automobile body-in-white measurement equipment are solved.
Description
Technical Field
The invention relates to automobile body-in-white measuring equipment, in particular to a three-coordinate measuring bracket shared by multiple automobile body-in-white.
Background
The modern car making technology includes engine, chassis and car body, and the car body includes white car body, car door, car window, interior and exterior decoration, accessories, seat, etc. The white body is the installation foundation of all body parts, is just like the skeleton of an automobile, supports the shape of the automobile, maintains the strength and the rigidity of the automobile, and greatly reflects the accuracy of the white body in the manufacturing level of the whole automobile. The monitoring of the white car body size precision is obtained by analyzing three-coordinate measurement data, and the measurement support is an important carrier for measuring and evaluating the white car body precision, and the white car body size precision monitoring device has the main function of stably positioning the white car body during three-coordinate measurement so as to ensure the accuracy of three-coordinate measurement equipment on the white car body measurement data. Today, the technology is very different, each big car host computer factory is in order to accord with market development, various new car types are layered endlessly, each motorcycle type is because automobile body length and width and the height of frame are different, thereby measurement support can not share, the state of a motorcycle type one set of measurement support appears, lead to the motorcycle type to be more and more, measurement support follows more and more, change of each motorcycle type measurement support is realized through demarcating different measurement support again after switching, because its complex operation has increased workman's work load, reduced three-dimensional room's availability factor, measurement result can not the efficient derivation, deposit and management have also pulled up our manufacturing cost simultaneously. Therefore, the prior art of the white automobile body measuring equipment has the defects of single function, complex operation and low efficiency.
Disclosure of Invention
In order to solve the defects of single function, complex operation and low efficiency in the prior art of automobile body-in-white measuring equipment, the invention provides a three-coordinate measuring bracket shared by multiple automobile types of body-in-white.
The technical scheme provided by the invention is as follows: the three-coordinate measurement bracket comprises a hundred-hole bottom plate, wherein a measurement bracket unit is fixedly connected to the hundred-hole bottom plate, the measurement bracket unit comprises a supporting bottom plate, the supporting bottom plate is fixedly connected to the hundred-hole bottom plate through a bottom plate locking pin, an X-direction sliding mechanism is fixedly arranged on the supporting bottom plate, X-direction limiters are fixedly arranged at the left end and the right end of the X-direction sliding mechanism, and a first positioning hole is further formed in the X-direction sliding mechanism along the X direction; the upper part of the X-direction sliding mechanism is connected with a Y-direction sliding mechanism through a sliding groove in a matched manner, Y-direction limiters are fixedly arranged at the front end and the rear end of the Y-direction sliding mechanism, X-direction positioning pins are fixedly arranged at the left end or the right end of the Y-direction sliding mechanism, the X-direction positioning pins correspond to the first positioning holes, and a second positioning hole is further formed in the Y-direction sliding mechanism along the Y direction; the upper part of the Y-direction sliding mechanism is connected with a Z-direction supporting mechanism in a matched manner through a chute, and the front end or the rear end of the Z-direction supporting mechanism is fixedly provided with a Y-direction positioning pin which corresponds to the second positioning hole; the Z is to the fixed supporting unit that is provided with in supporting mechanism top, and the supporting unit top is fixed and is provided with the locating element, and the locating element is inside to be provided with X to governing valve, Y to governing valve, Z to governing valve, and upper portion is provided with positioning mechanism.
According to the invention, the base plate with the hundred-position holes arranged in the three-coordinate measuring chamber is used as the base plate, the measuring bracket formed by the standard components is fixed on the base plate according to the coordinate system, and the whole measuring bracket can quickly reach the position degree required by measurement under the condition of ensuring the precision by adjusting the sliding mechanism, the supporting unit and the positioning unit which are adjusted on the measuring bracket, so that a plurality of vehicle types share the same set of measuring bracket. Specifically, a three-dimensional measurement bracket shared by multiple vehicle bodies in white comprises a hundred-hole bottom plate, wherein a measurement bracket unit is fixedly connected to the hundred-hole bottom plate and comprises a supporting bottom plate, the supporting bottom plate is fixedly connected to the hundred-hole bottom plate through bottom plate locking pins, the bottom plate of each measurement bracket unit controls the degrees of freedom of X and Y through two bottom plate locking pins, the two bottom plate locking pins control the degree of freedom in the Z direction and are connected with the three-dimensional hundred-hole bottom plate, the position of the measurement bracket unit on the hundred-hole bottom plate is determined through 3D data, and the adjustable stroke is 100MM in each of the XY positive and negative directions; an X-direction sliding mechanism is fixedly arranged on a supporting bottom plate of the measuring bracket unit, X-direction limiters are fixedly arranged at the left end and the right end of the X-direction sliding mechanism, and a first positioning hole is further formed in the X-direction sliding mechanism along the X direction; the upper part of the X-direction sliding mechanism is connected with a Y-direction sliding mechanism through a sliding groove in a matched manner, Y-direction limiters are fixedly arranged at the front end and the rear end of the Y-direction sliding mechanism, X-direction positioning pins are fixedly arranged at the left end or the right end of the Y-direction sliding mechanism, the X-direction positioning pins correspond to the first positioning holes, and a second positioning hole is further formed in the Y-direction sliding mechanism along the Y direction; the X-direction sliding mechanism is divided into three layers, the X-direction freedom degree adjustment is realized by a lower layer X-direction sliding mechanism, the Y-direction sliding mechanism moves along the X-direction sliding mechanism in the X direction, the position degree of the Y-direction sliding mechanism is determined by an X-direction locating pin arranged on the Y-direction sliding mechanism through a first locating hole arranged on the lower layer X-direction sliding mechanism, the adjustable stroke of the whole measuring bracket in the X positive and negative directions is 90mm under the condition of ensuring the precision, and X-direction limiters are arranged at the left end and the right end of the X-direction sliding mechanism in order to prevent the Y-direction sliding mechanism from sliding out of the X-direction sliding mechanism; the Y-direction freedom degree adjustment is realized by a middle layer Y-direction sliding mechanism, the Z-direction supporting mechanism moves along the Y-direction sliding mechanism in the Y direction, the position degree of the Z-direction supporting mechanism is determined by a Y-direction locating pin arranged on the Z-direction supporting mechanism through a second locating hole arranged on the lower layer Y-direction sliding mechanism, the adjustable stroke of the whole measuring bracket is 90mm in the positive and negative directions of Y under the condition of ensuring the precision, and Y-direction limiters are arranged at the front end and the rear end of the Y-direction sliding mechanism in order to prevent the Z-direction supporting mechanism from sliding out of the Y-direction sliding mechanism to accident; the Z-direction supporting mechanism is fixedly provided with a supporting unit above, the supporting unit receives the work of Z-direction large-size adjustment, a plurality of equal-height supporting blocks with the height of 100mm and 150mm are arranged, the number and the types of the supporting blocks required are obtained according to 3D digital models, and then the supporting blocks are installed, the principle is like building blocks, each equal-height supporting block is provided with two positioning holes matched with standard positioning pins, so that the fixing is firm, the precision is ensured, and the rapid installation and the rapid disassembly can be realized; the positioning unit is fixedly arranged above the supporting unit, the X-direction regulating valve, the Y-direction regulating valve and the Z-direction regulating valve are arranged in the positioning unit, the positioning mechanism is arranged on the upper portion of the positioning unit, in the whole debugging and using process of the measuring bracket, the positioning unit is subjected to final precision fine adjustment, the super-differential quantity of the direction X, Y, Z is determined by the positioning mechanism, the X, Y, Z-direction regulating valves are finally respectively regulated, 6 degrees of freedom regulation in the direction X, Y, Z is realized, the adjustable stroke in the positive and negative directions of X, Y, Z is 10mm, the defect that the sliding mechanism and the supporting unit cannot be finely regulated is overcome, the whole measured position reaches the position required by three-coordinate measurement, the regulating principle of the regulating valve is to prepare a standard cushion block with inconsistent length and width dimensions, the purpose of regulating the position is achieved by taking and changing the standard cushion block of the regulating valve, for example, the three-coordinate measuring X-direction difference is 5.5mm, the X-direction regulating valve can be loosened, a regulating block of 5.5mm is increased, the X-direction dimension requirement of the positioning mechanism is again regulated until the rest of other positioning surfaces are qualified, and regulation is carried out again.
The beneficial technical effects of the invention are as follows: the invention can cover the measuring bracket of all vehicle types, the new vehicle type and the modified vehicle type do not need to spend time, cost and energy on the measuring bracket, and the energy can be transferred to other matters of vehicle type development, thereby saving project development cost and material cost and saving development time and energy of developers. The invention is composed of various standard components with high processing precision and good stability, the switching efficiency is high, the precision is good, the maintenance and the replacement are convenient, the invention comprises the measurement standard of different vehicle types, the standard system does not need to convert during the measurement, the measurement result is directly obtained, the working efficiency of operators is improved, only one set of measurement bracket is needed to be maintained and managed, the management and maintenance cost and time of a plurality of measurement brackets are saved, and the invention solves the practical problems of single function, complex operation and low efficiency in the prior art of the automobile body-in-white measurement equipment.
Drawings
FIG. 1 is a schematic diagram of a structure of a measuring bracket unit;
FIG. 2 is a view of the application effect of the present invention;
FIG. 3 is a side view of the measurement stand unit;
FIG. 4 is a schematic diagram of the installation of the XY sliding mechanism of the measuring bracket unit;
FIG. 5 is an exploded view of the XY sliding mechanism of the measurement carriage unit;
FIG. 6 is a schematic diagram of a positioning unit;
FIG. 7 is an exploded view of the positioning unit;
in the figure, 1, a measuring bracket unit, 2, a hundred hole bottom plate, 3, a positioning unit, 30, a quick-change mechanism, 300, a quick-change mechanism positioning pin, 31, a locking mechanism, 310, a locking valve, 32, a Z-direction regulating valve, 33, an XY-direction regulating valve platform, 330, an X-direction regulating valve, 331, an X-direction stop block, 332, a first bolt, 333, a second bolt, 334, a Y-direction regulating valve, 335, a Y-direction stop block, 34, a positioning seat, 341, a positioning block, 342, a positioning pin, 343, a pull rod, 4, a supporting unit, 5, a Y-direction sliding mechanism, 51, a Y-direction sliding rail bottom plate, 52, a Y-direction sliding rail, 53, a second positioning hole, 54, an X-direction positioning pin, 6, an X-direction limiter, 7, an X-direction sliding mechanism, 71, an X-direction sliding rail bottom plate, 72, an X-direction sliding rail, 73, a first positioning pin, 8, a supporting bottom plate, 9, a bottom plate locking pin, 10, a Y-direction limiter, 11, a Z-direction supporting mechanism, 111, a Y-direction positioning pin, 12, a second push-pull handle, 13, a first handle, 14.14, and 14.
The invention will be further described with reference to the drawings and the specific examples.
Detailed Description
In the description of the present invention, the relative terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate positions based on the orientations shown in the drawings only, and for convenience in description, the invention is not limited to the orientations and configurations of the components described, and therefore should not be construed as limiting the invention.
Example 1
In this embodiment, X, Y, Z is three-dimensional, and as shown in fig. 5, the left-right direction of the X-direction slide mechanism 7 is selected as the X-direction, the front-rear direction of the X-direction slide mechanism 7 is selected as the Y-direction, and the vertical direction is selected as the Z-direction.
As shown in fig. 1, 4 and 6, a three-coordinate measurement bracket shared by multiple vehicle types of white vehicle bodies comprises a hundred-hole bottom plate 2, wherein a measurement bracket unit 1 is fixedly connected to the hundred-hole bottom plate 2, the measurement bracket unit 1 comprises a support bottom plate 8, the support bottom plate 8 is fixedly connected to the hundred-hole bottom plate 2 through a bottom plate locking pin 9, an X-direction sliding mechanism 7 is fixedly arranged on the support bottom plate 8, X-direction limiters 6 are fixedly arranged at the left end and the right end of the X-direction sliding mechanism 7, and a first positioning hole 73 is further formed in the X-direction sliding mechanism 7 along the X direction; y-direction sliding mechanisms 5 are connected above the X-direction sliding mechanisms 7 in a matched manner through sliding grooves, Y-direction limiters 10 are fixedly arranged at the front end and the rear end of the Y-direction sliding mechanisms 5, X-direction positioning pins 54 are fixedly arranged at the left end or the right end of the Y-direction sliding mechanisms 5, the X-direction positioning pins 54 correspond to the first positioning holes 73, and second positioning holes 53 are further formed in the Y-direction sliding mechanisms 5 along the Y direction; the upper part of the Y-direction sliding mechanism 5 is connected with a Z-direction supporting mechanism 11 in a matched manner through a chute, the front end or the rear end of the Z-direction supporting mechanism 11 is fixedly provided with a Y-direction positioning pin 111, and the Y-direction positioning pin 111 corresponds to the second positioning hole 53; the Z is to supporting mechanism 11 top fixedly be provided with supporting element 4, and supporting element 4 top fixedly is provided with positioning element 3, and positioning element 3 inside is provided with X to governing valve 330, Y to governing valve 334, Z to governing valve 32, and the upper portion is provided with positioning mechanism.
According to the invention, the bottom plate with the hundred-position holes arranged in the three-coordinate measuring chamber is used as the bottom plate, the measuring bracket formed by the standard components is fixed on the bottom plate according to the coordinate system, and the whole measuring bracket can quickly reach the position degree required by measurement under the condition of ensuring the precision by adjusting the sliding mechanism, the supporting unit 4 and the positioning unit 3 on the measuring bracket, so that a plurality of vehicle types share the same set of measuring bracket. Specifically, a three-dimensional measurement bracket shared by multiple vehicle types and white bodies comprises a hundred-hole bottom plate 2, wherein a measurement bracket unit 1 is fixedly connected to the hundred-hole bottom plate 2, the measurement bracket unit 1 comprises a support bottom plate 8, the support bottom plate 8 is fixedly connected to the hundred-hole bottom plate 2 through bottom plate locking pins 9, the bottom plate of each measurement bracket unit 1 controls the degrees of freedom of X and Y through two bottom plate locking pins 9, the two bottom plate locking pins 9 control the degree of freedom of Z direction to be connected with the three-dimensional hundred-hole bottom plate, the position of the measurement bracket unit 1 on the hundred-hole bottom plate 2 is determined through 3D data, and the adjustable stroke is 100MM in each of XY positive and negative directions; an X-direction sliding mechanism 7 is fixedly arranged on a supporting bottom plate 8 of the measuring bracket unit 1, X-direction limiters 6 are fixedly arranged at the left end and the right end of the X-direction sliding mechanism 7, and a first positioning hole 73 is further formed in the X-direction sliding mechanism 7 along the X direction; y-direction sliding mechanisms 5 are connected above the X-direction sliding mechanisms 7 through sliding grooves in a matched mode, Y-direction limiters 10 are fixedly arranged at the front end and the rear end of the Y-direction sliding mechanisms 5, X-direction positioning pins 54 are fixedly arranged at the left end or the right end of the Y-direction sliding mechanisms 5, the X-direction positioning pins 54 correspond to the first positioning holes 73, second positioning holes 53 are further arranged on the Y-direction sliding mechanisms 5 along the Y direction, the measuring support can achieve XYZ three-way degree-of-freedom adjustment, wherein the X-direction and the Y-direction are completed through the sliding mechanisms, the sliding mechanisms are divided into three layers, the X-direction degree-of-freedom adjustment is achieved by the lower-layer X-direction sliding mechanisms 7, the Y-direction sliding mechanisms 5 move along the X-direction sliding mechanisms 7 in the X direction, the position degree of the Y-direction positioning pins 54 arranged on the Y-direction sliding mechanisms 5 are determined by the first positioning holes 73 arranged on the lower-layer X-direction sliding mechanisms 7, and the adjustable stroke of the whole measuring support under the condition of guaranteeing precision is 90mm, and in order to prevent the X-direction sliding mechanisms 5 from sliding out of the X-direction sliding mechanisms 7, and the limiters 6 are arranged at the two ends of the X-direction limiters 6 on the left end and the right end of the X-direction sliding mechanisms 7; the Y-direction freedom degree adjustment is realized by a middle layer Y-direction sliding mechanism 5, the Z-direction supporting mechanism 11 moves along the Y-direction sliding mechanism 5 in the Y direction, the position degree of the Z-direction supporting mechanism 11 is determined by a Y-direction positioning pin 111 arranged on the Z-direction supporting mechanism 11 through a second positioning hole 53 arranged on the lower layer Y-direction sliding mechanism 5, the adjustable stroke of the whole measuring bracket is 90mm in the positive and negative directions of Y under the condition of ensuring the precision, and Y-direction limiters 10 are arranged at the front end and the rear end of the Y-direction sliding mechanism 5 in order to prevent accidents caused by sliding the Z-direction supporting mechanism 11 out of the Y-direction sliding mechanism 5; the support unit 4 is fixedly arranged above the Z-direction support mechanism 11, the support unit 4 receives the work of Z-direction large-size adjustment, a plurality of equal-height support blocks with the height of 100mm and 150mm are arranged, the number and types of the support blocks required are obtained according to 3D digital models, and then the support blocks are installed, the principle is that like building blocks are built, two positioning holes are matched with standard positioning pins in each equal-height support block, the installation and the disassembly are firm, the precision is guaranteed, and the rapid installation and the disassembly are realized; the positioning unit 3 is fixedly arranged above the supporting unit 4, the X-direction adjusting valve 330, the Y-direction adjusting valve 334 and the Z-direction adjusting valve 32 are arranged in the positioning unit 3, the positioning mechanism is arranged at the upper part, in the whole debugging and using process of the measuring bracket, the positioning unit 3 is subjected to final precision fine adjustment, the ultra-differential amount of the X, Y, Z direction is determined by the positioning mechanism, the X, Y, Z-direction adjusting valves are finally respectively adjusted, 6 degrees of freedom of the X, Y, Z direction are adjusted, the adjustable strokes of the X, Y, Z in the positive and negative directions are 10mm, the defect that the sliding mechanism and the supporting unit 4 cannot be finely adjusted is overcome, the whole measured position degree reaches the direction required by three-coordinate measurement, the adjusting principle of the adjusting valve is to prepare a standard cushion block with inconsistent length and width dimensions, the purpose of adjusting the position is achieved by taking and changing the standard cushion block of the adjusting valve, for example, the X-direction difference is 5.5mm is measured by three coordinates, the X-direction adjusting valve 330 can be loosened, a 5.5mm adjusting block is added, the X-direction size of the positioning mechanism is locked again, the X-direction size requirement of the positioning mechanism is measured until the positioning mechanism is qualified, and the rest of other positioning surfaces are adjusted again.
Further, the number of the measuring bracket units 1 is two or more than two pairs, and the measuring bracket units are fixedly arranged on the blind hole bottom plate 2 in pairs. As shown in fig. 2, the invention can be combined to meet the detection of different white bodywork, but at least two pairs are needed for omnibearing support and detection of white bodywork, and in the embodiment, four pairs are arranged on the blind hole bottom plate 2.
Further, the X-directional sliding mechanism 7 includes an X-directional sliding rail base plate 71, an X-directional sliding rail 72, the X-directional sliding rail 72 is fixed on the X-directional sliding rail base plate 71, the X-directional sliding rail base plate 71 is horizontally fixed on the supporting base plate 8, the first positioning hole 73 is located on the X-directional sliding rail base plate 71, and the X-directional stoppers 6 are located on the left and right sides of the X-directional sliding rail base plate 71. In this embodiment, the displacement adjustment in the X direction is performed by adopting a sliding rail sliding way, the stability is increased, the X-direction sliding rail bottom plate 71 is fixed on the supporting bottom plate 8 by using screws during installation, the X-direction sliding rail 72 is fixed on the X-direction sliding rail bottom plate 71 by using screws, the first positioning holes 73 are formed on the X-direction sliding rail bottom plate 71, a plurality of positioning holes are arranged at intervals according to the requirement of the project, the positioning holes can be formed outside or inside the X-direction sliding rail bottom plate 71, the X-direction limiters 6 are selectively arranged inside the positioning holes, the X-direction limiters 6 are positioned on the left and right sides of the X-direction sliding rail bottom plate 71, the X-direction limiters 6 comprise cantilevers formed on the left and right sides of the X-direction sliding rail bottom plate 71, the cantilevers are provided with threaded holes, bolts with top heads are matched in the cantilevers, and the top heads are arranged oppositely.
Further, the Y-directional sliding mechanism 5 includes a Y-directional sliding rail base plate 51, a Y-directional sliding rail 52, the Y-directional sliding rail 52 is fixed on the Y-directional sliding rail base plate 51, the second positioning hole 53 is located on the Y-directional sliding rail base plate 51, the Y-directional stopper 10 is located on the front and rear sides of the Y-directional sliding rail base plate 51, and the X-directional positioning pin 54 is located on the left side or the right side of the Y-directional sliding rail base plate 51. In this embodiment, the sliding rail sliding way is adopted to perform displacement adjustment in the Y direction, the dual sliding rail way is adopted to increase stability, the sliding way below the Y-direction sliding rail bottom plate 51 is matched and installed on the X-direction sliding rail 72 during installation, the Y-direction sliding rail 52 is perpendicular to the X-direction sliding rail 72, the Y-direction sliding rail 52 is fixed on the Y-direction sliding rail bottom plate 51 through screws, the second positioning holes 53 are formed on the Y-direction sliding rail bottom plate 51, a plurality of positioning pins 53 are arranged at intervals according to project requirements, the positioning pins can be arranged on the left part or the right part of the Y-direction sliding rail bottom plate 51, the positioning pins are selectively arranged on the left part, the Y-direction limiter 10 is positioned on the front side and the rear side of the Y-direction sliding rail bottom plate 51, the Y-direction limiter 10 comprises cantilevers formed on the front side and the rear side of the Y-direction sliding rail bottom plate 51, the cantilevers are provided with threaded holes, bolts with jacks are matched in the cantilevers, the jacks are oppositely arranged, and in order to limit the displacement of the Y-direction sliding mechanism 5 in the X-direction sliding rail bottom plate 51 in the left side or the right side of the Y-direction sliding rail bottom plate 51.
Further, a first push-pull handle 13 is further disposed on the left side surface or the right side surface of the Y-directional sliding rail bottom plate 51. In order to make the operation of the operator more convenient and quick for the adjustment movement in the X direction, a push-pull handle 13 is further disposed on the left side or the right side of the Y-direction slide rail bottom plate 51, and the first push-pull handle 13 is selectively disposed on the right side in this embodiment.
Further, a second push-pull handle 12 is further disposed on the front side or the rear side of the Z-direction support mechanism 11. In order to make the Y-direction adjustment movement more convenient and faster for the operator to operate, a second push-pull handle 12 is further provided on the front side or the rear side of the Z-direction support mechanism 11, and the second push-pull handle 12 is optionally mounted on the front side in this embodiment.
Further, the number of the supporting units 4 is one or more. The supporting unit 4 receives the work of Z-direction large-size adjustment, is provided with a plurality of equal-height supporting blocks with the heights of 100mm and 150mm, obtains the number and the types of the supporting blocks required to be installed according to 3D digital models, and the principle is that each equal-height supporting block is provided with two positioning holes matched with standard positioning pins like building blocks, so that the fixing is firm, the precision is ensured, the quick installation and the quick detachment can be realized, and the three-layer supporting unit 4 is selectively installed as shown in the attached figure 1.
Further, the positioning unit 3 includes a quick-change mechanism 30 and a locking mechanism 31, the quick-change mechanism 30 is provided with a quick-change mechanism positioning pin 300, the locking mechanism 31 is provided with a locking valve 310, the locking mechanism 31 is positioned above the quick-change mechanism 30, and the quick-change mechanism 30 and the locking mechanism 31 are positioned by the quick-change mechanism positioning pin 300 and are fixedly connected by the locking valve 310; the Z-direction regulating valve 32 is fixedly arranged above the locking mechanism 31, and the XY-regulating-valve platform 33 is fixedly arranged above the Z-direction regulating valve 32. The positioning unit 3 is connected with two positioning pins of the supporting unit 4 through the quick-change mechanism 30, the locking mechanism 31 is fixed on the quick-change mechanism 30 through screws, the quick-change mechanism 30 and the locking mechanism 31 are positioned through the quick-change mechanism positioning pin 300 and are fixedly connected through the locking valve 310, the positioning unit 3 performs final precision fine adjustment, the upper positioning mechanism is used for determining the Z-direction deviation amount, the Z-direction regulating valve 32 is regulated, the degree of freedom regulation in the Z direction is realized, the adjustable stroke in the Z positive and negative directions is 10mm, the defect that the sliding mechanism and the supporting unit 4 cannot be finely regulated is overcome, the Z-direction measurement position degree reaches the azimuth required by three-coordinate measurement, the regulating principle of the Z-direction regulating valve 32 is to prepare a standard cushion block with inconsistent length and width dimensions, and the purpose of regulating the position is achieved through taking the standard cushion block of the change regulating valve.
Further, the positioning mechanism comprises a positioning seat 34, and the positioning seat 34 is fixedly arranged above the XY adjusting valve platform 33; the positioning seat 34 is internally provided with a blind hole, a positioning pin 342 is matched and arranged in the blind hole, and a pull rod 343 is fixedly arranged on the positioning pin 342; a blocking hole is formed in the outer side face of the positioning seat 34, the blocking hole is communicated with the blind hole, and the pull rod 343 penetrates through the blocking hole; the top end of the positioning seat 34 is fixedly provided with a positioning block 341, a through hole is formed in the positioning block 341, and a positioning pin 342 penetrates through the through hole and protrudes out of the head. The locating pin 342, locating piece 341 are as fine setting measurement part, the shaping of locating pin 342 top has protruding circular truncated cone, the installation is convenient when making simultaneously placing white automobile body as the measurement benchmark, the locating piece 341 upper surface is the locating surface, as the measurement benchmark, therefore must process into the surface of high accuracy, measure the super difference of locating pin 342 and locating piece 341 determination XYZ direction with the three-dimensional measuring machine, finally adjust X, Y, Z respectively to the governing valve, locating pin 342 is the shrink, the inside fashioned blind hole of locating seat 34 is provided with locating pin 342 in the cooperation, fixedly be provided with pull rod 343 on the locating pin 342, the fender hole has been seted up on the locating seat 34 lateral surface, the fender hole is L, the fender hole communicates with the blind hole, the pull rod 343 passes the fender hole, the through-hole has been seted up on the locating piece 341, pull rod 343 passes the through-hole and the protruding head of seting up on the locating piece 341 when using this moment, when not using, pull rod 343 is pulled down, the shrink in the blind hole when locating pin 342.
Further, an X-direction stop block 331 is fixedly arranged at the left or right part of the XY adjusting valve platform 33, a through hole is formed in the X-direction stop block 331, a movable first bolt 332 is arranged in the through hole, a first threaded hole is formed in a positioning seat 34 opposite to the first bolt 332, the X-direction adjusting valve 330 is positioned between the positioning seat 34 and the X-direction stop block 331, a through hole corresponding to the first threaded hole is formed in the X-direction adjusting valve 330, and the first bolt 332 penetrates through the X-direction adjusting valve 330 to be connected with the positioning seat 34; y-direction check blocks 335 are fixedly arranged at the front part or the rear part of the XY adjusting valve platform 33, through holes are formed in the Y-direction check blocks 335, movable second bolts 333 are arranged in the through holes, second threaded holes are formed in positioning seats 34 opposite to the second bolts 333, Y-direction adjusting valves 334 are located between the positioning seats 34 and the Y-direction check blocks 335, through holes corresponding to the second threaded holes are formed in the Y-direction adjusting valves 334, and the second bolts 333 penetrate through the Y-direction adjusting valves 334 and are connected with the positioning seats 34. During installation, the first bolt 332 sequentially passes through the X-direction stop block 331 and the X-direction regulating valve 330, the X-direction regulating valve 330 is pressed on the positioning seat 34 through the X-direction stop block 331, the regulating principle is that standard cushion blocks with consistent length and width dimensions and inconsistent thickness are prepared, the purpose of regulating positions is achieved by taking and changing the standard cushion blocks of the regulating valve, the X-direction super-differential amount is determined by using the positioning mechanism, the X-direction regulating valve 330 is regulated, the degree of freedom regulation in the X direction is realized, the adjustable stroke in the X positive and negative directions is 10mm, the defect that the sliding mechanism cannot be finely regulated is overcome, the position degree of measurement in the X direction reaches the azimuth required by three-coordinate measurement, and the adjustable stroke of the Y-direction regulating valve 334 in the Y positive and negative directions is 10mm.
Obviously, the invention comprises measurement benchmarks of different vehicle types, so that a benchmark system does not need to be converted during measurement to directly obtain a measurement result, the working efficiency of operators is improved, only one set of measurement brackets is required to be maintained and managed, the management and maintenance costs and time of a plurality of measurement brackets are saved, the project development cost and the material cost are saved, and the development time and the energy of developers are also saved.
The foregoing is a preferred embodiment of the present invention, and it should be understood that those skilled in the art can derive relevant technical solutions based on the prior art through logic analysis, reasoning or experiments without creative effort, and thus, all the relevant technical solutions should be within the protection scope of the present claims.
Claims (7)
1. The utility model provides a three-dimensional measurement support of multi-vehicle body in white sharing, includes hundred hole bottom plates (2), its characterized in that: the measuring bracket unit (1) is fixedly connected to the hundred-hole bottom plate (2), the measuring bracket unit (1) comprises a supporting bottom plate (8), the supporting bottom plate (8) is fixedly connected to the hundred-hole bottom plate (2) through a bottom plate locking pin (9), an X-direction sliding mechanism (7) is fixedly arranged on the supporting bottom plate (8), X-direction limiters (6) are fixedly arranged at the left end and the right end of the X-direction sliding mechanism (7), and a first positioning hole (73) is further formed in the X-direction sliding mechanism (7) along the X direction; y-direction sliding mechanisms (5) are connected above the X-direction sliding mechanisms (7) in a matched mode through sliding grooves, Y-direction limiters (10) are fixedly arranged at the front end and the rear end of each Y-direction sliding mechanism (5), X-direction positioning pins (54) are fixedly arranged at the left end or the right end of each Y-direction sliding mechanism (5), each X-direction positioning pin (54) corresponds to a first positioning hole (73), and a second positioning hole (53) is further formed in each Y-direction sliding mechanism (5); a Z-direction supporting mechanism (11) is connected above the Y-direction sliding mechanism (5) in a matched manner through a chute, a Y-direction positioning pin (111) is fixedly arranged at the front end or the rear end of the Z-direction supporting mechanism (11), and the Y-direction positioning pin (111) corresponds to the second positioning hole (53); a supporting unit (4) is fixedly arranged above the Z-direction supporting mechanism (11), a positioning unit (3) is fixedly arranged above the supporting unit (4), an X-direction regulating valve (330), a Y-direction regulating valve (334) and a Z-direction regulating valve (32) are arranged inside the positioning unit (3), and a positioning mechanism is arranged at the upper part of the positioning unit; the positioning unit (3) comprises a quick-change mechanism (30) and a locking mechanism (31), wherein a quick-change mechanism positioning pin (300) is arranged on the quick-change mechanism (30), a locking valve (310) is arranged on the locking mechanism (31), the locking mechanism (31) is positioned above the quick-change mechanism (30), and the quick-change mechanism (30) and the locking mechanism (31) are positioned through the quick-change mechanism positioning pin (300) and are fixedly connected through the locking valve (310); the Z-direction regulating valve (32) is fixedly arranged above the locking mechanism (31), and an XY regulating valve platform (33) is fixedly arranged above the Z-direction regulating valve (32); the positioning mechanism comprises a positioning seat (34), and the positioning seat (34) is fixedly arranged above the XY adjusting valve platform (33); a blind hole is formed in the positioning seat (34), a positioning pin (342) is arranged in the blind hole in a matched mode, and a pull rod (343) is fixedly arranged on the positioning pin (342); a blocking hole is formed in the outer side face of the positioning seat (34), the blocking hole is communicated with the blind hole, and the pull rod (343) penetrates through the blocking hole; a positioning block (341) is fixedly arranged at the top end of the positioning seat (34), a through hole is formed in the positioning block (341), and a positioning pin (342) penetrates through the through hole and protrudes out of the head part; an X-direction stop block (331) is fixedly arranged at the left part or the right part of the XY adjusting valve platform (33), a through hole is formed in the X-direction stop block (331), a movable first bolt (332) is arranged in the through hole, a first threaded hole is formed in a positioning seat (34) opposite to the first bolt (3332), an X-direction adjusting valve (330) is positioned between the positioning seat (34) and the X-direction stop block (331), a through hole corresponding to the first threaded hole is formed in the X-direction adjusting valve (330), and the first bolt (332) penetrates through the X-direction adjusting valve (330) to be connected with the positioning seat (34); y-direction check blocks (335) are fixedly arranged at the front part or the rear part of the XY-direction regulating valve platform (33), through holes are formed in the Y-direction check blocks (335), movable second bolts (333) are arranged in the through holes, second threaded holes are formed in positioning seats (34) opposite to the second bolts (333), Y-direction regulating valves (334) are located between the positioning seats (34) and the Y-direction check blocks (335), through holes corresponding to the second threaded holes are formed in the Y-direction regulating valves (334), and the second bolts (333) penetrate through the Y-direction regulating valves (334) to be connected with the positioning seats (34); the positioning unit (3) is connected with two positioning pins of the supporting unit (4) through a quick-change mechanism (30).
2. A multi-vehicle body-in-white shared three-coordinate measuring machine as defined in claim 1, wherein: the number of the measuring bracket units (1) is two or more than two pairs, and the measuring bracket units are fixedly arranged on the hundred-hole bottom plate (2) in pairs.
3. A multi-vehicle body-in-white shared three-coordinate measuring machine as claimed in claim 1 or claim 2, wherein: the X-direction sliding mechanism (7) comprises an X-direction sliding rail base plate (71) and an X-direction sliding rail (72), wherein the X-direction sliding rail (72) is fixed on the X-direction sliding rail base plate (71), the X-direction sliding rail base plate (71) is horizontally fixed on the supporting base plate (8), the first positioning hole (73) is positioned on the X-direction sliding rail base plate (71), and the X-direction limiters (6) are positioned on the left side surface and the right side surface of the X-direction sliding rail base plate (71).
4. A multi-vehicle body-in-white shared three-coordinate measuring machine as claimed in claim 1 or claim 2, wherein: the Y-direction sliding mechanism (5) comprises a Y-direction sliding rail base plate (51) and a Y-direction sliding rail (52), the Y-direction sliding rail (52) is fixed on the Y-direction sliding rail base plate (51), the second positioning hole (53) is formed in the Y-direction sliding rail base plate (51), the Y-direction limiter (10) is formed in the front side surface and the rear side surface of the Y-direction sliding rail base plate (51), and the X-direction positioning pin (54) is formed in the left side surface or the right side surface of the Y-direction sliding rail base plate (51).
5. The multi-vehicle body-in-white sharing three-coordinate measuring machine according to claim 4, wherein: the left side face or the right side face of the Y-direction sliding rail bottom plate (51) is also provided with a first push-pull handle (13).
6. A multi-vehicle body-in-white shared three-coordinate measuring machine according to claim 1, 2 or 5, wherein: the front side or the rear side of the Z-direction supporting mechanism (11) is also provided with a second push-pull handle (12).
7. The multi-vehicle body-in-white sharing three-coordinate measuring machine according to claim 6, wherein: the number of the supporting units (4) is one or more.
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| CN201910043841.3A CN109556549B (en) | 2019-01-17 | 2019-01-17 | Three-coordinate measuring bracket shared by multiple vehicle types and white vehicle bodies |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113418479A (en) * | 2020-09-07 | 2021-09-21 | 一汽奔腾轿车有限公司 | Precise flexible measurement positioning support column |
| CN114905431B (en) * | 2022-04-06 | 2024-03-19 | 中国第一汽车股份有限公司 | Positioning device, positioning method and detection method for white car body damping tower |
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