CN118980317A - A high-precision automobile inspection fixture based on laser scanning - Google Patents
A high-precision automobile inspection fixture based on laser scanning Download PDFInfo
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- CN118980317A CN118980317A CN202411087180.1A CN202411087180A CN118980317A CN 118980317 A CN118980317 A CN 118980317A CN 202411087180 A CN202411087180 A CN 202411087180A CN 118980317 A CN118980317 A CN 118980317A
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
本发明涉及汽车零部件检测技术领域，公开了一种基于激光扫描的高精度汽车检具，包括：检测平台，检测平台包括上下设置的激光扫描单元和工件装夹单元，激光扫描单元上设置有水平移动的激光检测头，激光检测头用于检测与工件的距离，两个工件装夹单元分别滑动设置于检测平台两侧，工件装夹单元上转动设置有装夹头，装夹头与工件上的装夹孔卡接。本发明通过装夹头与装夹孔配合的形式，对汽车零件进行稳定装夹的同时，最大程度的减少对零件表面的遮挡；采用可调节的工件装夹单元，能够适应不同形状尺寸的汽车零件，解决现有异形汽车零件装夹检具复杂的问题；对工件各方向进行激光扫描检测，实现对汽车零件的全面检测和三维点云数据的全面构建。
The present invention relates to the technical field of automobile parts detection, and discloses a high-precision automobile inspection fixture based on laser scanning, comprising: an inspection platform, the inspection platform comprising a laser scanning unit and a workpiece clamping unit arranged up and down, the laser scanning unit being provided with a horizontally movable laser inspection head, the laser inspection head being used to detect the distance to the workpiece, two workpiece clamping units being respectively slidably arranged on both sides of the inspection platform, a clamping head being rotatably arranged on the workpiece clamping unit, and the clamping head being clamped with a clamping hole on the workpiece. The present invention can stably clamp automobile parts by cooperating with the clamping head and the clamping hole, while minimizing the obstruction of the surface of the parts; an adjustable workpiece clamping unit is adopted, which can adapt to automobile parts of different shapes and sizes, and solve the problem of the complexity of the existing clamping inspection fixtures for special-shaped automobile parts; laser scanning and inspection are performed on all directions of the workpiece, so as to realize comprehensive inspection of automobile parts and comprehensive construction of three-dimensional point cloud data.
Description
Technical Field
The invention relates to the technical field of automobile part detection, in particular to a high-precision automobile detection tool based on laser scanning.
Background
The automobile checking fixture is a special checking device for measuring and evaluating the size and quality of parts, and on-line detection of the parts is realized through the checking fixture on a part production site, so that the parts are required to be accurately mounted on the checking fixture, and then the molded surface and the periphery of the parts are checked through the checking device. The laser scanning detection is applied to the aspect of automobile part detection, the laser sensor is used for scanning and detecting the surface of the part, three-dimensional point cloud data of the part are generated, the data analysis software is used for carrying out size measurement and defect identification on the three-dimensional point cloud data, rapid automatic detection of the automobile part is achieved, and the detection result is accurate.
In the prior art, as in the patent of the utility model with the application number of CN202322311522.0, a laser scanning gauge for automobile parts is disclosed, and comprises a support base, wherein a bearing table is arranged at the top of the support base, and a convenient detection mechanism for the automobile parts is arranged at the top of the bearing table; the both ends of supporting spring respectively with the other end inner wall of guide bar and one side fixed connection of backup pad, and slide one side of curb plate and install second driving motor, and one side fixed connection of second driving motor's output and rotating the head, and then can drive the grip block through supporting spring and carry out convenient centre gripping to the tip of spare part, then can drive the spare part through starting second driving motor and carry out the upset of multi-angle, thereby cooperate the detection component, can carry out the detection of multi-angle to the spare part, the starting cylinder can drive the position of slip bottom plate and adjust, then can drive detection device and carry out convenient adjustment to the position of detection, and then the practicality obtains effectual improvement.
The device clamps the parts through the clamping plate, and the surfaces of the parts are shielded in the clamping process, so that the detection result at the shielded position is lost, and the problem of incomplete three-dimensional point cloud data is solved. Therefore, there is a need for a high-precision automobile gauge based on laser scanning, which at least partially solves the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to at least partially solve the above problems, the present invention provides a high-precision automobile gauge based on laser scanning, comprising:
The detection platform comprises a laser scanning unit and a workpiece clamping unit, wherein the laser scanning unit and the workpiece clamping unit are arranged up and down, the laser scanning unit is provided with a horizontally moving laser detection head, the laser detection head is used for detecting the distance between the laser detection head and a workpiece, the two workpiece clamping units are respectively arranged on two sides of the detection platform in a sliding mode, and clamping heads are rotatably arranged on the workpiece clamping units and are clamped with clamping holes in the workpiece.
Preferably, the workpiece clamping unit comprises a lifting assembly, and the lifting assembly comprises:
The base is connected to the horizontal sliding rail at the top end of the detection platform in a sliding manner and can be locked at any position of the horizontal sliding rail;
the four guide posts are uniformly connected to the top end of the base;
The clamping platform is connected to the guide post in a sliding manner and is connected with the clamping head;
The first hydraulic cylinder is connected to the top end of the base, and the output end of the first hydraulic cylinder is connected with the clamping platform and used for driving the clamping platform to move along the vertical direction.
Preferably, the workpiece clamping unit further includes a first angle adjusting assembly, the first angle adjusting assembly including:
the fan-shaped rotating piece is rotationally connected in the slot at one side of the clamping platform and is connected with the clamping head;
the rotating piece driving rod is connected to the top end of the fan-shaped rotating piece;
the fixed end of the second hydraulic cylinder is hinged with the clamping platform, and the output end of the second hydraulic cylinder is hinged with the driving rod of the rotating piece.
Preferably, the workpiece clamping unit further includes a second angle adjusting assembly, the second angle adjusting assembly including:
One end of the angle adjusting rod is rotatably connected in the fan-shaped rotating piece, the other end of the angle adjusting rod is connected with the rotating motor, and the output end of the rotating motor is connected with the clamping head;
The fan-shaped worm wheel plate is rotationally connected to the outer side of the fan-shaped rotating piece and is connected with the angle adjusting rod through a cross rod, and an arc-shaped groove for the cross rod to pass through is formed in the side face of the fan-shaped rotating piece;
the worm is connected to the outside of the fan-shaped rotating piece in a rotating mode, the worm is meshed with the fan-shaped worm wheel plate, one end of the worm rotating shaft is connected with the driving piece, and the driving piece is arranged to be any one of a driving motor and an adjusting handle.
Preferably, the rotational axis of the sector worm plate is disposed collinear with the rotational axis of the angle adjustment lever.
Preferably, be provided with spacing adjustment subassembly on the angle modulation pole, spacing adjustment subassembly includes:
The adjusting frame is connected to the turnover shaft at the output end of the rotating motor, the length direction of the adjusting frame is perpendicular to the axis direction of the angle adjusting rod, and an adjusting groove is formed in the adjusting frame;
The push plate is connected to the surface of the overturning shaft in a sliding manner;
the adjusting block is connected in the adjusting groove in a sliding manner and is connected with the clamping head;
the two ends of the connecting rod are respectively hinged with the push plate and the adjusting block;
the third hydraulic cylinder is connected to the side face of the overturning shaft, and the output end of the third hydraulic cylinder is connected with the push plate.
Preferably, the two adjusting grooves and the two adjusting blocks are symmetrically arranged relative to the angle adjusting rod, and the two adjusting blocks are connected with the clamping head.
Preferably, both chucks are inclined inwardly or outwardly at the same time.
Preferably, the chuck includes: the clamping head supporting rod, the conical head and the clamping elastic piece are arranged, one end of the clamping head supporting rod is connected with the adjusting block, and the other end of the clamping head supporting rod is connected with the conical head; diameter of conical head near one end of clamping head supporting rod is greater than and far away from the clamping head the diameter of one end of the supporting rod; the clamping elastic pieces are uniformly connected to the outer wall of the conical head along the circumferential direction, and one end, far away from the clamping head supporting rod, of each clamping elastic piece is bent inwards.
Preferably, the bottom end of the conical head is concentrically connected with a limiting ring, and the limiting ring is arranged on the inner side of the clamping elastic sheet.
Compared with the prior art, the invention at least comprises the following beneficial effects:
According to the high-precision automobile inspection tool based on laser scanning, the automobile parts are stably clamped in a mode that the clamping head is matched with the clamping hole, and meanwhile shielding to the surfaces of the parts is reduced to the greatest extent; the adjustable workpiece clamping unit is adopted, so that the clamping head is adapted to the position adjustment of the clamping holes of the automobile parts, the clamping head can be adapted to the automobile parts with different shapes and sizes, and the problem that the existing special-shaped automobile part clamping fixture is complex is solved by combining simulation calculation; the laser scanning detection device can stably rotate the workpiece to a preset angle, and performs laser scanning detection on each direction of the workpiece, so that comprehensive detection on automobile parts and comprehensive construction of three-dimensional point cloud data are realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a workpiece clamping unit in the present invention;
FIG. 3 is a schematic view of the structure of the angle adjusting assembly in the workpiece clamping unit of the present invention;
FIG. 4 is a schematic diagram of a middle distance adjusting assembly of a workpiece clamping unit according to the present invention;
FIG. 5 is a schematic view of the chuck assembly of the present invention;
Fig. 6 is a schematic cross-sectional view of the chuck in the present invention.
In the figure: 1. a detection platform; 2. a laser scanning unit; 3. a workpiece clamping unit; 4. a laser detection head; 5. mounting a chuck; 6. a workpiece; 11. a base; 12. clamping a platform; 13. a guide post; 14. a first hydraulic cylinder; 15. a horizontal slide rail; 16. a fan-shaped rotating member; 17. a rotating member driving lever; 18. a second hydraulic cylinder; 19. an angle adjusting lever; 20. a rotating electric machine; 21. a sector worm plate; 22. a cross bar; 23. a worm; 24. an arc-shaped groove; 25. an adjusting frame; 26. a push plate; 27. an adjusting block; 28. a connecting rod; 29. a third hydraulic cylinder; 30. a turnover shaft; 31. an adjustment tank; 51. a clamping head supporting rod; 52. a conical head; 53. clamping the spring plate; 54. and a limiting ring.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1:
as shown in fig. 1, the present invention provides a high-precision automobile gauge based on laser scanning, comprising:
The detection platform 1, the detection platform 1 includes laser scanning unit 2 and work piece clamping unit 3 that set up from top to bottom, is provided with horizontal migration's laser detection head 4 on the laser scanning unit 2, and laser detection head 4 is used for detecting the distance with work piece 6, and two work piece clamping units 3 slide respectively and set up in detection platform 1 both sides, rotate on the work piece clamping unit 3 and be provided with clamping head 5, clamping head 5 and the clamping hole joint on the work piece 6.
The working principle and the beneficial effects of the technical scheme are as follows:
When the high-precision automobile gauge based on laser scanning is used, according to the clamping position of a workpiece, clamping holes are pre-machined in the high-precision automobile gauge, the workpiece clamping units 3 are adjusted to enable the clamping heads 5 to be opposite to the clamping holes in the workpiece 6, the workpiece clamping units 3 on two sides are close to each other, the clamping heads 5 are enabled to be clamped Kong Kajin on two sides, and the workpiece 6 is clamped between the two workpiece clamping units 3; then, the height of the workpiece clamping unit 3 is adjusted to enable the workpiece clamping unit to move to a height convenient to detect; starting the laser scanning unit 2, enabling the laser detection head 4 to move along the horizontal direction, and detecting all positions on the upper surface of the workpiece 6; finally, the workpiece clamping unit 3 rotates the clamping head 5 to enable the workpiece 6 to rotate, and the laser detection head 4 detects the positions of the workpiece 6 in all directions.
And establishing a finite element simulation model of the workpiece 6 by adopting a finite element simulation mode, determining a plurality of clamping and positioning modes according to the weight distribution condition of the workpiece 6, performing simulation calculation on the structural deformation of the workpiece 6 when different clamping and positioning modes are adopted, selecting a clamping and positioning mode with smaller deformation, and adjusting the workpiece clamping unit 3 according to the clamping position.
Through the structural design, the high-precision automobile inspection tool based on laser scanning is provided, and the shielding on the surface of the part is reduced to the greatest extent while the automobile part is stably clamped in a mode that the clamping head 5 is matched with the clamping hole; the adjustable workpiece clamping unit is adopted, so that the clamping head 5 is suitable for adjusting the position of the clamping hole of the automobile part, and can be suitable for automobile parts with different shapes and sizes, and the problem that the clamping fixture of the existing special-shaped automobile part is complex is solved by combining simulation calculation; the workpiece 6 can be stably rotated to a preset angle, and laser scanning detection can be performed on the workpiece 6 in all directions, so that comprehensive detection of automobile parts and comprehensive construction of three-dimensional point cloud data are realized.
Example 2:
As shown in fig. 1 and 2, on the basis of the above embodiment 1, the workpiece clamping unit 3 includes a lifting assembly including:
the base 11, the base 11 is connected to the horizontal slide rail 15 on the top end of the detection platform 1 in a sliding manner, and can be locked at any position of the horizontal slide rail 15;
the four guide posts 13 are uniformly connected to the top end of the base 11;
The clamping platform 12 is connected to the guide post 13 in a sliding manner, and the clamping platform 12 is connected with the clamping head 5;
The first hydraulic cylinder 14, first hydraulic cylinder 14 are connected on the top of base 11, and first pneumatic cylinder 13 output is connected with clamping platform 12 for drive clamping platform 12 moves along vertical direction.
The working principle and the beneficial effects of the technical scheme are as follows:
When the lifting assembly is used, the first hydraulic cylinder 14 is started to enable the output end of the lifting assembly to extend, the clamping platform 12 is pushed to move upwards, the clamping platform 12 drives the clamping head 5 to move, and the height of the clamping head 5 is adjusted upwards, so that the clamping head 5 is moved to a position convenient to detect; after the detection is finished, the first hydraulic cylinder 14 is started to retract the output end of the first hydraulic cylinder, so that the clamping platform 12 is driven to move downwards, and further the height of the clamping head 5 is adjusted downwards, so that the clamping head is moved to a position convenient for clamping and dismounting a workpiece; four guide posts 13 guide the movement of the clamping platform 12. Through the setting of lifting unit, can realize the regulation to clamping head 5 height, make it can adapt to the different clamping positions of work piece 6, fix a position work piece 6 to the height of being convenient for detect and loading and unloading.
Example 3:
as shown in fig. 1 to 3, on the basis of the above embodiment 2, the workpiece clamping unit 3 further includes a first angle adjusting assembly including:
The fan-shaped rotating piece 16 is rotatably connected in a groove at one side of the clamping platform 12, and the fan-shaped rotating piece 16 is connected with the clamping head 5;
a rotor driving lever 17, the rotor driving lever 17 being connected to the tip of the fan-shaped rotor 16;
The fixed end of the second hydraulic cylinder 18 is hinged with the clamping platform 12, and the output end of the second hydraulic cylinder 18 is hinged with the rotating piece driving rod 17.
The working principle and the beneficial effects of the technical scheme are as follows:
When the first angle adjusting component is used, the second hydraulic cylinder 18 is started to enable the output end of the second hydraulic cylinder 18 to extend or retract, the output end of the second hydraulic cylinder 18 drives the rotating piece driving rod 17 to rotate, the fan-shaped rotating piece 16 rotates along with the second hydraulic cylinder, the angle of the fan-shaped rotating piece 16 is adjusted, and then the angle of the clamping head 5 is adjusted, so that the angle of the clamping head 5 is suitable for clamping holes formed in different directions in workpieces with different shapes, and clamping is convenient.
Example 4:
As shown in fig. 1 to 3, on the basis of the above embodiment 3, the workpiece clamping unit 3 further includes a second angle adjusting assembly including:
The angle adjusting rod 19, one end of the angle adjusting rod 19 is rotatably connected in the fan-shaped rotating piece 16, the other end of the angle adjusting rod 19 is connected with the rotating motor 20, and the output end of the rotating motor 20 is connected with the clamping head 5;
the fan-shaped worm wheel plate 21 is rotatably connected to the outer side of the fan-shaped rotating piece 16, the fan-shaped worm wheel plate 21 is connected with the angle adjusting rod 19 through a cross rod 22, and an arc-shaped groove 24 for the cross rod 22 to pass through is formed in the side surface of the fan-shaped rotating piece 16;
The worm 23, the worm 23 rotates and connects in the outside of the sector rotation piece 16, and the worm 23 is connected with the sector worm gear plate 21 in a meshed way, one end of the worm 23 rotating shaft is connected with the driving piece, the driving piece is set up as any one of driving motor and adjusting handle.
The rotational axis of the sector worm plate 21 is arranged co-linearly with the rotational axis of the angle adjustment lever 19.
The working principle and the beneficial effects of the technical scheme are as follows:
The first angle adjusting assembly coarsely adjusts the angle of the clamping head 5 through the second hydraulic rod, then the second angle adjusting assembly is used for starting a driving motor or rotating an adjusting handle, so that the worm 23 rotates, the worm 23 and the fan-shaped worm wheel plate 21 are in meshed transmission, the fan-shaped worm wheel plate 21 is driven to rotate, the fan-shaped worm wheel plate 21 drives the angle adjusting rod 19 to rotate along with the angle adjusting rod through the cross rod 22, the angle of the angle adjusting rod 19 is adjusted again, and fine adjustment of the angle of the clamping head 5 is achieved. The second angle adjusting component supplements the first angle adjusting component, and through the joint use of the two angle adjusting components, the accuracy of angle adjustment of the clamping head 5 is improved, so that the clamping head 5 can be matched with the clamping Kong Jingzhun, the workpiece 6 is ensured to be stressed stably after clamping, and falling off is not easy to occur in the overturning process. The angle adjusting rod 19 is provided with a rotating motor 20, and the output shaft of the rotating motor 20 rotates to drive the clamping head 5 to rotate along with the rotating motor, so that the placing angle of the workpiece 6 is adjusted, the directions of the workpiece 6 are detected, and the workpiece 6 can be turned up and down.
Example 5:
As shown in fig. 1 to 4, on the basis of the above-described embodiment 4, the angle adjusting lever 19 is provided with a pitch adjusting assembly including:
the adjusting frame 25, on the turning shaft 30 of the output end of the rotating motor 20 of the adjusting frame 25, the length direction of the adjusting frame 25 is perpendicular to the axis direction of the angle adjusting rod 19, and the adjusting frame 25 is provided with an adjusting groove 31;
the pushing plate 26 is connected with the surface of the overturning shaft 30 in a sliding manner;
The adjusting block 27 is connected in the adjusting groove 31 in a sliding manner, and the adjusting block 27 is connected with the clamping head 5;
the two ends of the connecting rod 28 are respectively hinged with the push plate 26 and the adjusting block 27;
The third hydraulic cylinder 29, the third hydraulic cylinder 29 is connected to the side of the tilting shaft 30, and the output end of the third hydraulic cylinder 29 is connected with the push plate 26.
The two adjusting grooves 31 and the two adjusting blocks 27 are symmetrically arranged relative to the angle adjusting rod 19, and the two adjusting blocks 27 are connected with the clamping head 5.
The working principle and the beneficial effects of the technical scheme are as follows:
When the interval adjusting assembly is used, the third hydraulic cylinder 29 is started to extend the output end of the interval adjusting assembly, the output end of the third hydraulic cylinder 29 pushes the push plate 26 to slide on the surface of the overturning shaft 30, and the push plate 26 pulls the connecting rod 28 to rotate along the direction away from the adjusting frame 25 to drive the two adjusting blocks 27 to be close to each other, so that the two clamping heads 5 are close to each other, namely, the interval between the two clamping heads 5 is adjusted to be reduced, and clamping holes with smaller interval can be adapted; and the third hydraulic cylinder 29 is started reversely to retract the output end of the third hydraulic cylinder, the push plate 26 is driven to slide in the direction approaching the adjusting frame 25, and the two adjusting blocks 27 are driven to be far away from each other through the connecting rod 28, so that the distance between the two clamping heads 5 is increased, and the clamping holes with larger distance can be adapted. Through the structural design, the space between the two clamping heads 5 is adjusted, so that the clamping holes with different spaces can be adapted to clamping modes of workpieces with different shapes and sizes.
Two clamping heads 5 are arranged on a single workpiece clamping unit 3, the number of the clamping heads 5 is two, limiting is carried out in the clamping width direction, deflection of the workpiece 6 after clamping is avoided, the clamping stability of the workpiece 6 is improved, and workpiece displacement in the detection process is effectively prevented.
Example 6:
on the basis of the above-described embodiment 5, the two chucks 5 are provided obliquely inward or outward at the same time.
The working principle and the beneficial effects of the technical scheme are as follows:
The clamping head 5 is obliquely arranged towards the inner side or the outer side, and the clamping holes are correspondingly obliquely arranged, so that the clamping head 5 can be obliquely inserted into the clamping holes, the clamping width direction is further limited, the workpiece clamping stability is improved, and the accuracy of the laser scanning detection process is further ensured.
Example 7:
As shown in fig. 5 and 6, in the above embodiment 1, the chuck 5 includes: the clamping head supporting rod 51, the conical head 52 and the clamping elastic piece 53, wherein one end of the clamping head supporting rod 51 is connected with the adjusting block 27, and the other end of the clamping head supporting rod is connected with the conical head 52; the diameter of the conical head 52 at the end close to the clamping head supporting rod 51 is larger than that of the conical head 52 at the end far away from the clamping head supporting rod 51; the clamping elastic pieces 53 are uniformly connected to the outer wall of the conical head 52 along the circumferential direction, and one end, far away from the clamping head supporting rod 51, of the clamping elastic pieces 53 is bent inwards.
The bottom end of the conical head 52 is concentrically connected with a limiting ring 54, and the limiting ring 54 is arranged on the inner side of the clamping elastic piece 53.
The working principle and the beneficial effects of the technical scheme are as follows:
The clamping head 5 is arranged in a conical shape, the clamping hole on the workpiece 6 is correspondingly arranged in a conical shape, the size of the clamping elastic piece 53 is larger than the diameter of the clamping hole, when the clamping head 5 is clamped with the clamping hole, the conical head 52 stretches into the clamping hole, the clamping hole inwards extrudes the clamping elastic piece 53 to enable the clamping elastic piece 53 to deform inwards, and the clamping head 5 is tightly clamped with the clamping hole under the elastic action of the clamping elastic piece 53, so that the clamping stability is improved; when the clamping elastic piece 53 deforms inwards, the clamping elastic piece 53 is limited and blocked through the limiting ring 54, the problem that the clamping elastic piece 53 deforms too much locally due to inaccurate clamping positions is avoided, the maximum deformation of the clamping elastic piece 53 is limited, the plastic deformation of the clamping elastic piece 53 is reduced, and the service life of the clamping elastic piece 53 is prolonged.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. High accuracy car examines utensil based on laser scanning, its characterized in that includes:
The detection platform (1), detection platform (1) is including laser scanning unit (2) and work piece clamping unit (3) that set up from top to bottom, be provided with horizontal migration's laser detection head (4) on laser scanning unit (2), laser detection head (4) are used for detecting the distance with work piece (6), two work piece clamping units (3) slide respectively and set up in detection platform (1) both sides, rotate on work piece clamping unit (3) and be provided with clamping head (5), clamping head (5) and the clamping hole joint on work piece (6).
2. The high-precision automobile gauge based on laser scanning according to claim 1, wherein the workpiece clamping unit (3) comprises a lifting assembly, the lifting assembly comprising:
The base (11) is connected to the horizontal sliding rail (15) at the top end of the detection platform (1) in a sliding manner, and can be locked at any position of the horizontal sliding rail (15);
The four guide posts (13) are uniformly connected to the top end of the base (11);
the clamping platform (12), the clamping platform (12) is connected to the guide post (13) in a sliding manner, and the clamping platform (12) is connected with the clamping head (5);
The first hydraulic cylinder (14), first pneumatic cylinder (14) are connected in base (11) top, and first pneumatic cylinder (13) output is connected with clamping platform (12) for drive clamping platform (12) along vertical direction removal.
3. The high-precision automobile gauge based on laser scanning according to claim 2, wherein the workpiece clamping unit (3) further comprises a first angle adjusting assembly, the first angle adjusting assembly comprising:
The fan-shaped rotating piece (16), the fan-shaped rotating piece (16) is rotationally connected in a groove at one side of the clamping platform (12), and the fan-shaped rotating piece (16) is connected with the clamping head (5);
A rotating member driving lever (17), the rotating member driving lever (17) being connected to the top end of the fan-shaped rotating member (16);
The fixed end of the second hydraulic cylinder (18) is hinged with the clamping platform (12), and the output end of the second hydraulic cylinder (18) is hinged with the rotating piece driving rod (17).
4. A high precision automotive inspection tool based on laser scanning as claimed in claim 3, characterized in that the workpiece clamping unit (3) further comprises a second angle adjusting assembly comprising:
One end of the angle adjusting rod (19) is rotatably connected in the fan-shaped rotating piece (16), the other end of the angle adjusting rod (19) is connected with the rotating motor (20), and the output end of the rotating motor (20) is connected with the clamping head (5);
The fan-shaped worm wheel plate (21), the fan-shaped worm wheel plate (21) is rotationally connected to the outer side of the fan-shaped rotating piece (16), the fan-shaped worm wheel plate (21) is connected with the angle adjusting rod (19) through the cross rod (22), and an arc-shaped groove (24) for the cross rod (22) to penetrate is formed in the side face of the fan-shaped rotating piece (16);
The worm (23), the worm (23) rotates and connects in fan-shaped rotation piece (16) outside, and worm (23) and fan-shaped worm gear board (21) meshing are connected, and worm (23) pivot one end is connected with the driving piece, and the driving piece sets up to any one of driving motor and regulation handle.
5. The high-precision automobile inspection tool based on laser scanning according to claim 4, characterized in that the rotation axis of the sector worm wheel plate (21) is arranged in line with the rotation axis of the angle adjusting lever (19).
6. The high-precision automobile gauge based on laser scanning of claim 4, wherein the angle adjusting rod (19) is provided with a spacing adjusting assembly, and the spacing adjusting assembly comprises:
the adjusting frame (25), the adjusting frame (25) is connected to the turnover shaft (30) of the output end of the rotating motor (20), the length direction of the adjusting frame (25) is perpendicular to the axis direction of the angle adjusting rod (19), and the adjusting frame (25) is provided with an adjusting groove (31);
the pushing plate (26), the pushing plate (26) is connected to the surface of the overturning shaft (30) in a sliding way;
the adjusting block (27) is slidably connected in the adjusting groove (31), and the adjusting block (27) is connected with the clamping head (5);
the two ends of the connecting rod (28) are respectively hinged with the push plate (26) and the adjusting block (27);
And the third hydraulic cylinder (29), the third hydraulic cylinder (29) is connected to the side surface of the overturning shaft (30), and the output end of the third hydraulic cylinder (29) is connected with the push plate (26).
7. The high-precision automobile gauge based on laser scanning according to claim 6, wherein the two adjusting grooves (31) and the two adjusting blocks (27) are symmetrically arranged relative to the angle adjusting rod (19), and the two adjusting blocks (27) are connected with the clamping head (5).
8. A high precision automotive inspection tool based on laser scanning according to claim 7, characterized in that two chucks (5) are arranged obliquely to the inside or outside simultaneously.
9. The high-precision automobile gauge based on laser scanning according to claim 1, wherein the chuck (5) comprises: the clamping head supporting rod (51), the conical head (52) and the clamping elastic piece (53), wherein one end of the clamping head supporting rod (51) is connected with the adjusting block (27), and the other end of the clamping head supporting rod is connected with the conical head (52); the diameter of one end of the conical head (52) close to the clamping head supporting rod (51) is larger than that of one end far away from the clamping head supporting rod (51); the clamping elastic pieces (53) are uniformly connected to the outer wall of the conical head (52) along the circumferential direction, and one end, far away from the clamping head supporting rod (51), of each clamping elastic piece (53) is bent inwards.
10. The high-precision automobile gauge based on laser scanning of claim 9, wherein the bottom end of the conical head (52) is concentrically connected with a limiting ring (54), and the limiting ring (54) is arranged on the inner side of the clamping spring piece (53).
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| CN202411087180.1A CN118980317A (en) | 2024-08-09 | 2024-08-09 | A high-precision automobile inspection fixture based on laser scanning |
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| CN202411087180.1A CN118980317A (en) | 2024-08-09 | 2024-08-09 | A high-precision automobile inspection fixture based on laser scanning |
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Application publication date: 20241119 |