CN112557062A - Calibration frame and calibration equipment - Google Patents
Calibration frame and calibration equipment Download PDFInfo
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- CN112557062A CN112557062A CN202011358091.8A CN202011358091A CN112557062A CN 112557062 A CN112557062 A CN 112557062A CN 202011358091 A CN202011358091 A CN 202011358091A CN 112557062 A CN112557062 A CN 112557062A
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- 230000007246 mechanism Effects 0.000 claims description 12
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- 238000000429 assembly Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
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- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/013—Wheels
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a calibration frame, comprising: the bracket assembly comprises a first bracket, a second bracket and a connecting piece for connecting the first bracket and the second bracket; the rotating shaft is arranged between the first support frame and the second support frame and can rotate around a central axis, and the central axis is a core axis; the two first mounting pieces are respectively arranged at two end parts of the rotating shaft and used for mounting and supporting a first target, and the first target is provided with calibration patterns and used for calibrating a camera assembly in the four-wheel aligner; the two second mounting pieces are respectively arranged at two end parts of the rotating shaft and used for mounting and supporting the hub clamp assembly, and the hub clamp assembly comprises a hub clamp and a second target mounted on the hub clamp; after the camera assembly in the four-wheel aligner finishes calibration through the first target, the camera assembly is also used for calibrating the hub clamp on the second mounting part. Therefore, the target can be installed, the hub clamp assembly can be installed, the cost is reduced, the space is saved, and the use is convenient.
Description
Technical Field
The embodiment of the invention relates to the field of four-wheel positioning, in particular to a calibration frame and calibration equipment.
Background
The automobile is an important transportation tool which is indispensable in people's life, and the driving performance of the automobile is closely related to the life safety of people. In order to ensure the driving performance of the automobile, components on the automobile need to be calibrated periodically or according to requirements after the automobile leaves a factory, and in the calibration process, the calibration is usually realized by means of a four-wheel aligner, wherein the position of a camera assembly in the four-wheel aligner plays a crucial role in the whole four-wheel alignment process. Generally, before the wheel is positioned, some calibration preparation is usually required, including calibration of the camera assembly in the four-wheel aligner, and calibration of the hub clamp.
At present, when the two preparation works are completed, the two preparation works are generally completed through two calibration frames respectively, namely, one of the two calibration frames is provided with a target for completing the calibration of a camera component; the other one is provided with a hub clamp assembly for completing the calibration of the hub clamp. However, when the two preparation operations are completed, the two calibration frames are needed, which is difficult to transport and high in cost, and the two calibration frames occupy more space and are inconvenient to use.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the invention provides a calibration frame and calibration equipment which are convenient to use.
The embodiment of the invention adopts the following technical scheme for solving the technical problems:
a calibration frame is used for calibrating a four-wheel aligner and comprises:
the bracket assembly comprises a first bracket, a second bracket and a connecting piece, wherein the first bracket and the second bracket are arranged at intervals, and two ends of the connecting piece are respectively connected with the first bracket and the second bracket;
the rotating shaft is arranged between the first support frame and the second support frame, the central axis of the rotating shaft is a mandrel, and the rotating shaft can rotate around the mandrel;
the two first mounting pieces are respectively arranged at two end parts of the rotating shaft and used for mounting and supporting a first target, and the first target is provided with calibration patterns and used for calibrating a camera component in the four-wheel aligner;
the two second mounting pieces are respectively arranged at two end parts of the rotating shaft and are used for mounting and supporting the hub clamp assembly, and the hub clamp assembly comprises a hub clamp and a second target mounted on the hub clamp;
after the camera assembly in the four-wheel aligner finishes calibration through the first target, the camera assembly is further used for calibrating the hub clamp on the second mounting part.
Optionally, the first support frame includes a first support portion and a first receiving portion connected to the first support portion, the second support frame includes a second support portion and a second receiving portion connected to the second support portion, the first support portion and the second support portion are both used for abutting against a support surface, and the first receiving portion and the second receiving portion respectively abut against two end portions of the rotating shaft.
Optionally, the first supporting portion has at least one first supporting leg, the second supporting portion has at least two second supporting legs, and the at least one first supporting leg and the at least two second supporting legs are arranged in a polygon shape.
Optionally, the number of the first supporting legs is one, the number of the second supporting legs is two, and the first supporting legs and the two second supporting legs are arranged in a triangular shape.
Optionally, first accepting portion is equipped with first draw-in groove, the second accepting portion is equipped with the second draw-in groove, the one end of pivot with the tank bottom butt of first draw-in groove, the other end of pivot with the tank bottom butt of second draw-in groove.
Optionally, the first card slot and/or the second card slot are V-shaped.
Optionally, the rotating shaft is provided with a first limiting protrusion and two second limiting protrusions, the first limiting protrusion and the second limiting protrusion are located at one end of the rotating shaft, and the first limiting protrusion and the second limiting protrusion are arranged at intervals to form a notch, and the notch is used for being clamped with the first bearing part; and the other second limiting protrusion is positioned at the other end of the rotating shaft, wherein the second mounting part is connected with the second limiting protrusion.
Optionally, the first mounting member is a sleeve, the sleeve is fixedly connected to the rotating shaft, the sleeve is provided with a mounting hole, and the connecting shaft of the first target is mounted in the mounting hole.
Optionally, the calibration frame further comprises a knob, the sleeve is provided with a first threaded hole, and the knob is screwed in the first threaded hole;
when the connecting shaft of the first target is mounted in the mounting hole, the knob is screwed and the end part of the knob is abutted to the connecting shaft of the first target so as to lock the first target.
Optionally, the second installed part is a chuck, the chuck includes fixed plate, first end plate and second end plate respectively fixed mounting in the both ends of fixed plate, the fixed plate cup joints and is fixed in the pivot, two jack catchs that wheel hub pressed from both sides press from both sides tightly jointly the chuck, wherein, first end plate and the outer fringe of second end plate all is circular-arcly.
Optionally, the calibration frame further comprises an adjusting piece, the second supporting leg is provided with a threaded through hole, the adjusting piece is screwed in the threaded through hole, and the end part of the adjusting piece can be exposed out of the threaded through hole so as to adjust the height difference between the two second supporting legs.
Optionally, the calibration frame further comprises a locking mechanism, and the locking mechanism is used for locking the connecting piece and the rotating shaft so that the connecting piece and the rotating shaft are fixed.
Optionally, the locking mechanism comprises a locking lever, a first card, a second card, a third card and a fourth card;
first card and second card interval set up in the one end of check lock lever, first card and second card are used for the centre gripping the pivot, third card and fourth card interval set up in the other end of check lock lever, third card and fourth card are used for the centre gripping the connecting piece.
Optionally, a first through hole is formed in one end, away from the locking rod, of the first clamping piece, and a second through hole is formed in one end, away from the locking rod, of the second clamping piece;
a third through hole is formed in one end, far away from the rotating shaft, of the third clamping piece, and a fourth through hole is formed in one end, far away from the rotating shaft, of the fourth clamping piece;
the locking mechanism further comprises a first bolt, a second bolt, a first nut and a second nut, the first bolt sequentially penetrates through the first through hole and the second through hole and then is in threaded connection with the first nut, and the second bolt sequentially penetrates through the third through hole and the fourth through hole and then is in threaded connection with the second nut.
The embodiment of the invention adopts the following technical scheme for solving the technical problems:
a calibration device for calibrating a four-wheel aligner, comprising:
according to the calibration frame, the two end parts of the rotating shaft are respectively provided with the first jack and the second jack;
a first target mounted to the first jack;
a second target mounted to the second jack.
Optionally, the first and second sockets are threaded holes, and the first and second targets each have a threaded portion, and the threaded portion is in threaded connection with the threaded hole, so that the first and second targets are mounted on the rotating shaft.
Optionally, the calibration frame further includes a first screw and a second screw, the two ends of the rotating shaft are respectively provided with a first internal threaded hole and a second internal threaded hole, the first screw is screwed in the first internal threaded hole, and the second screw is screwed in the second internal threaded hole, so that the first target and the second target are fixedly mounted on the rotating shaft.
The embodiment of the invention adopts the following technical scheme for solving the technical problems:
a calibration device for calibrating a four-wheel aligner, comprising:
the calibration frame is as described above;
the first hub clamp is mounted on the second mounting piece;
a second hub clamp mounted to the other of the second mounting members;
the two second targets are respectively installed on the first hub clamp and the second hub clamp, and the two second targets are used for calibrating the first hub clamp and the second hub clamp.
The embodiment of the invention has the beneficial effects that: the calibration rack provided by the embodiment of the invention comprises: the bracket assembly comprises a first bracket, a second bracket and a connecting piece, wherein two ends of the connecting piece are respectively connected with the first bracket and the second bracket; the rotating shaft is arranged between the first support frame and the second support frame, the central axis of the rotating shaft is a mandrel, and the rotating shaft can rotate around the mandrel; the two first mounting pieces are respectively arranged at two end parts of the rotating shaft and used for mounting and supporting a first target, and the first target is provided with calibration patterns and used for calibrating a camera assembly in the four-wheel aligner; the two second mounting pieces are respectively arranged at two end parts of the rotating shaft and are used for mounting and supporting the hub clamp assembly, and the hub clamp assembly comprises a hub clamp and a second target mounted on the hub clamp; after the camera assembly in the four-wheel aligner finishes calibration through the first target, the camera assembly is also used for calibrating the hub clamp on the second mounting part. Through the structure, the calibration frame can realize the installation of the target and can also install the wheel hub clamp assembly, the calibration of the camera assembly and the wheel hub clamp can be completed without two calibration frames, the cost is reduced, the space is saved, and the use is more convenient.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a schematic diagram of a calibration stand according to one embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 3 is a schematic structural view of the bracket assembly of FIG. 2;
FIG. 4 is a schematic view of the hinge and the first mounting member of FIG. 1 assembled together;
FIG. 5 is a schematic structural view of the second mount of FIG. 1;
FIG. 6 is a simplified schematic diagram of a locking mechanism in an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a calibration apparatus in another embodiment of the present invention;
FIG. 8 is a schematic structural view of the first target of FIG. 7;
FIG. 9 is a schematic structural diagram of a calibration apparatus in a further embodiment of the present invention;
FIG. 10 is a schematic structural view of the hub clamp assembly of FIG. 9.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The automobile is an important transportation tool which is indispensable in people's life, and the driving performance of the automobile is closely related to the life safety of people. In order to ensure the driving performance of the automobile, components on the automobile need to be calibrated regularly or according to requirements after the automobile leaves a factory, and in the calibration process, the calibration is usually realized by means of a four-wheel aligner, wherein the position of a camera assembly in the four-wheel aligner plays a crucial role in the whole four-wheel alignment process.
The four-wheel positioning is based on four-wheel parameters of the vehicle, and good running performance of the vehicle is ensured and certain reliability is achieved through adjustment. In life, when a driver obviously feels that the vehicle is easy to deviate, the relative positions of the wheels, the steering knuckle or the front axle (or the rear axle) of the vehicle are generally changed, so that the four wheels cannot normally operate, and the phenomena of deviation and slipping occur. Therefore, the wheels of the vehicle need to be regularly or on demand calibrated to prevent the occurrence of traffic accidents.
Generally, alignment of the vehicle wheels is performed by a four-wheel aligner, which is usually performed by a camera assembly on the four-wheel aligner, and specifically, by capturing images of hub clamp assemblies mounted on four wheels to determine the positions of the wheels relative to a steering knuckle and a front axle (or rear axle), and adjusting the wheels according to the acquired position information of the wheels. Wherein, wheel hub presss from both sides the subassembly and includes wheel hub clamp and target, and the target is installed on the wheel hub presss from both sides. The camera assembly locates the wheel based on a target mounted on the hub clamp.
Generally, before four-wheel alignment is performed on wheels, calibration needs to be performed on a camera assembly in the four-wheel alignment instrument to avoid inaccurate measurement caused by the change of the position of a camera after the four-wheel alignment instrument is used for a long time. Meanwhile, in order to ensure that the central axis of the target arranged on the hub clamp coincides with the central axis of the hub when the hub clamp is arranged on a wheel, the hub clamp needs to be calibrated before four-wheel positioning, so that the measurement error caused by looseness of internal devices after the hub clamp is used for a long time is eliminated.
As shown in fig. 1-2, an embodiment of the invention provides a calibration frame 100 for calibrating a four-wheel aligner. The calibration frame 100 includes a bracket assembly 110, a rotating shaft 120, two first mounting members 130 and two second mounting members 150, wherein the rotating shaft 120 is mounted on the bracket assembly 110, and the rotating shaft 120 is rotatable relative to the bracket assembly 110, and the rotating shaft 120 can rotate around a core axis which is a central axis of the rotating shaft 120. The two first mounting members 130 are respectively located at two ends of the rotating shaft 120, and the two second mounting members 150 are respectively mounted at two ends of the rotating shaft 120. As shown in fig. 7 and 9, the first mount 130 is used to mount and support a first target 300, and the second mount 150 is used to mount and support a hub clamp assembly 400. The first target 300 is provided with a calibration pattern for calibrating a camera component in the four-wheel aligner. The hub clamp assembly 400 includes a hub clamp 410 and a second target 420 mounted to the hub clamp 410. It should be understood that the calibration stand 100 can mount the first target 300 on the first mounting member 130 according to the functional requirements of the user, so as to complete the calibration of the camera assembly in the four-wheel aligner; alternatively, the hub clamp assembly 400 is mounted on the second mount 150 so that the hub clamp assembly 400 is calibrated by the calibrated camera assembly.
In this embodiment, the two first mounting parts 130 are respectively disposed at two end portions of the rotating shaft 120, the two second mounting parts 150 are also respectively disposed at two end portions of the rotating shaft 120, and the first mounting parts 130 and the second mounting parts 150 are disposed adjacent to each other.
It can be understood that, compared to the conventional calibration device, the calibration frame 100 in the embodiment of the present invention has multiple functions, and specifically, when performing calibration preparation, two calibration frames are not required, and the first calibration plate 300 or the hub clamp assembly 400 can be installed as required, so as to assist the calibration of the camera assembly 210 and the hub clamp 410. Therefore, the calibration frame 100 of the embodiment of the invention not only occupies a small space, but also has low transportation and cost and is more convenient to use.
As shown in fig. 2 to 3, the bracket assembly 110 includes a first bracket 111, a second bracket 112 and a connecting member 113, the first bracket 111 and the second bracket 112 are disposed at an interval, and two ends of the connecting member 113 are respectively connected to the first bracket 111 and the second bracket 112. It can be understood that the first support frame 111, the second support frame 112 and the connecting member 113 may be integrally formed by welding or the like, or may be connected by screws, or of course, may be connected by other methods, such as: the first support frame 111 is provided with a first insertion hole (not shown), a hole wall of the first insertion hole (not shown) is provided with a first notch (not shown), the second support frame 112 is provided with a second insertion hole (not shown), a hole wall of the second insertion hole 1121 is provided with a second notch (not shown), one end of the connecting piece 113 is provided with two first protruding columns (not shown) arranged at intervals, the other end of the connecting piece 113 is provided with two second protruding columns (not shown) arranged at intervals, one end of the connecting piece 113 penetrates through the first insertion hole and abuts against the first support frame, the other end of the connecting piece 130 penetrates through the second insertion hole and abuts against the second support frame 112, the first notch is located between the two first protruding columns, and the second notch is located between the two second protruding columns. After the connecting member 113 abuts against the first support frame 111 and the second support frame 112, the connecting member 113 is rotated to make the two first protruding columns dislocate with the first recesses, that is, the two first protruding columns and the first recesses are not in the same line, and similarly, the two second protruding columns and the second recesses are also dislocated, thereby realizing tight connection among the first support frame 110, the second support frame 112, and the connecting member 113.
In some embodiments, the first support frame 111 includes a first support part 1113 and a first receiving part 1114 connected to the first support part 1113, the second support frame 112 includes a second support part 1123 and a second support part 1124 connected to the second support part 1123, the first support part 1113 and the second support part 1123 are both configured to abut against a support surface, and the first receiving part 1114 and the second receiving part 1124 abut against two end portions of the rotating shaft 120 respectively. It should be understood that the support surface refers to a plane on which the calibration stand 100 is placed, and is generally the ground.
Further, the first supporting portion 1113 has at least one first supporting foot 11131, the second supporting portion 1123 has at least two second supporting feet 11231, and the at least one first supporting foot 11131 and the at least two second supporting feet 11231 are arranged in a polygon shape. It is understood that the first support 11131 can be two, three or more, and similarly, the second support 11231 can be the same. In this embodiment, the number of the first support 11131 is one, the number of the second support 11231 is two, and the first support 11131 and the two second support 11231 are disposed in a triangle.
Referring to fig. 3, in some embodiments, the first receiving portion 1114 is provided with a first slot 11141, the second receiving portion 1124 is provided with a second slot 11241, one end of the rotating shaft 120 abuts against a slot bottom of the first slot 11141, and the other end of the rotating shaft 120 abuts against a slot bottom of the second slot 11241. Therefore, the rotating shaft 120 can be received by the first slot 11141 and the second slot 11241. The first card slot 11141 and the second card slot 11241 may be U-shaped, V-shaped, or a combination of U-shaped and V-shaped, or may have other shapes. In this embodiment, the first slot 11141 and the second slot 11241 are V-shaped. When the rotating shaft 120 is installed in the first slot 11141 and the second slot 11241, the rotating shaft 120 is stationary between the first supporting frame 110 and the second supporting frame 120 under the action of gravity. When the rotating shaft needs to be adjusted, the rotating shaft 120 only needs to be directly rotated and rotated around the central axis, and the position of the rotating shaft can be adjusted.
As shown in fig. 4, for the rotating shaft 120, a first limiting protrusion 121 and two second limiting protrusions 122 are provided, the first limiting protrusion 121 and one of the second limiting protrusions 122 are located at one end of the rotating shaft 120, and the first limiting protrusion 121 and the second limiting protrusion 122 are spaced apart from each other to form a notch 123, and the notch 123 is used for being clamped with the first receiving portion 1114. Another second limiting protrusion 122 is located at the other end of the rotating shaft 120, wherein the second mounting part 150 is connected with the second limiting protrusion 122. Specifically, the notch 123 is engaged with the first engaging groove 11141, so as to limit the axial movement of the rotating shaft 120.
Further, in order to prevent the rotating shaft 120 from being detached from the bracket assembly 110 at will, the bracket assembly 110 further includes a top pin 114, and the first support bracket 111 and the second support bracket 112 are both provided with a pin hole 1141, as shown in fig. 3, the pin hole 1141 is located at an end of the first support bracket 111 and the second support bracket 112 away from the supporting surface. The outer surface of the knock pin 114 is provided with a thread, the inner wall of the pin hole 1141 is provided with a thread, and the knock pin 114 is in threaded connection with the pin hole 1141, so that the end of the knock pin 114 can abut against the rotating shaft 120. Therefore, when the rotating shaft 120 needs to be tightly mounted on the first support bracket 111 and the second support bracket 112, locking can be achieved only by tightening the knock pin 114 and causing the knock pin 114 to abut against the rotating shaft 120. It can be appreciated that the top pin 114 is unscrewed, so that the rotating shaft 120 has a moving space in the first slot 11141 and the second slot 11241, and the rotating shaft 120 can be rotated, thereby adjusting the positions of the first mounting member 130 and the second mounting member 150.
The first mount 130 is mounted to an end of the rotation shaft 120 for mounting and supporting the first target 300. In this embodiment, the first mounting member 130 is a sleeve, one end of the sleeve is fixedly connected to the rotating shaft 120, and the other end of the sleeve is provided with a mounting hole (not labeled), and the first target portion is mounted in the mounting hole. It will be appreciated that the sleeve may be threaded to the shaft 120, i.e., the outer surface of the end of the shaft is threaded. Of course, the sleeve and the rotating shaft 120 may be tightly connected by interference fit. The connection manner of the sleeve and the rotating shaft 120 is not limited herein, as long as the connection of the sleeve and the rotating shaft 120 can be realized.
In order to make the reader clearly understand how the calibration frame 100 of the embodiment of the present invention accurately mounts the first target, the following will briefly describe the mounting structure between the first target 300 and the first mounting element 130:
as shown in fig. 8, the first target 300 includes a first target plate 310 and the connecting shaft 320, the connecting shaft 320 is connected to the target plate 310, the target plate 310 is provided with the calibration pattern, and the connecting shaft 320 is installed in the installation hole of the sleeve. In the present embodiment, the first target 300 is provided with two positioning pillars (not labeled), one end surface of the sleeve close to the target is provided with two positioning holes (not labeled), the two positioning pillars are disposed on the target plate 310, and the two positioning pillars are disposed adjacent to the connecting shaft 320. The connecting shaft 320 is inserted into the mounting hole, and the two positioning columns are aligned and inserted into the two positioning holes at the same time, so that the first target 300 is quickly and accurately positioned and mounted into the sleeve. Moreover, the two positioning posts are limited by the two positioning holes, so that the first target 300 can be prevented from rotating relative to the sleeve. It should be understood that the calibration pattern may be a pattern with various shapes, such as a triangle, a quadrangle, a circle, etc., and the specific shape of the calibration pattern is not limited herein as long as the calibration of the camera assembly can be achieved.
Further, in order to prevent the first target 300 from being drawn out at will, please refer to fig. 2 and 4 again, the calibration frame 100 further includes a knob 140, a first threaded hole 131 is formed in a sidewall of the sleeve, and the knob 140 is in threaded connection with the first threaded hole 131. When the knob 140 is tightened and abuts the first target 300, the first target 300 is locked to the sleeve, and the first target 300 is fixed relative to the shaft 120. Thus, only when the rotation shaft 120 is rotated about the core axis, the angle between the first target 300 with respect to the support surface can be adjusted correspondingly.
For the second mounting member 150, it is mounted to the end of the rotating shaft 120 for providing a mounting position of the hub clamp assembly 400. In this embodiment, the second mounting member 150 is a chuck, as shown in fig. 5, the chuck includes a fixing plate 151, a first end plate 152 and a second end plate 153, the first end plate 152 and the second end plate 153 are respectively and fixedly mounted at two ends of the fixing plate 151, the fixing plate 151 is sleeved and fixed on the rotating shaft 120, the outer edges of the first end plate 152 and the second end plate 153 are arc-shaped, and the first end plate 152 and the second end plate 153 are used for clamping the hub clamp 410. In this embodiment, the fixing plate 151 is fastened to the second limiting protrusion 122 by a screw, so that when the rotating shaft 120 rotates, the second mounting member 150 rotates, and the position of the hub clamp assembly 400 can be adjusted accordingly.
Referring to fig. 1 again, in some embodiments, the calibration frame 100 further includes an adjusting member 160, the second support leg 11231 is provided with a threaded through hole (not labeled), the adjusting member 160 is screwed into the threaded through hole, and an end of the adjusting member 160 is exposed out of the threaded through hole to adjust a height difference between the two second support legs 11231. It can be understood that when the adjusting member 160 is gradually retracted into the threaded through hole, the height of the second support leg 11231 from the ground is gradually decreased, and conversely, the height of the second support leg 11231 from the ground is gradually increased. Therefore, the height of the second support frame 112 for lifting the rotating shaft 120 can be conveniently adjusted, so that the rotating shaft 120 can be kept horizontal on two support surfaces with different heights.
As shown in fig. 6, in some embodiments, the calibration frame 100 further includes a locking mechanism 170 for locking the connecting member 113 and the rotating shaft 120 so as to fix the connecting member 113 and the rotating shaft 120. Specifically, the locking mechanism includes a locking lever 171, a first clamping piece 172, a second clamping piece 173, a third clamping piece 174 and a fourth clamping piece 175, the first clamping piece 172 and the second clamping piece 173 are disposed at an interval at one end of the locking lever 171, the first clamping piece 172 and the second clamping piece 173 are used for clamping the rotating shaft 120, the third clamping piece 174 and the fourth clamping piece 175 are disposed at an interval at the other end of the locking lever 171, and the third clamping piece 174 and the fourth clamping piece 175 are used for clamping the connecting member 113. Wherein, first card 172 is kept away from the one end of check lock lever 171 is provided with first through-hole (not marking), second card 173 is kept away from the one end of check lock lever 171 is provided with second through-hole (not marking), third card 174 is kept away from the one end of pivot 120 is provided with third through-hole (not marking), fourth card 175 is kept away from the one end of pivot is provided with fourth through-hole (not marking), locking mechanism 170 still includes first bolt 176, second bolt 177, first nut 178 and second nut 179, first bolt 176 pass first through-hole and second through-hole in proper order after with first nut 178 spiro union, second bolt 177 pass third through-hole and fourth through-hole in proper order after with second nut spiro union 179. Through the locking mechanism, the connecting piece 113 and the rotating shaft 120 can be locked more stably, and the calibration accuracy of the four-wheel aligner is ensured.
In order to make the reader clearly aware of how the hub clamp assembly is securely connected to the second mounting member, the following description will be directed to the relevant structure of the hub clamp assembly:
as shown in fig. 10, the hub clip assembly 400 includes a hub clip 410 and a second target 420, the second target 420 being mounted to the hub clip 410. The hub clamp 410 comprises a guide assembly 411, a driving rod 412, two jaw assemblies 413 and a clamping module 414, wherein the driving rod 412, the two jaw assemblies 413 and the clamping module 414 are all mounted on the guide assembly 411, the driving rod 412 is respectively connected with the two jaw assemblies 413, each jaw assembly 413 comprises a base 4131 and a jaw 4132 mounted on the base 4131, and the two jaw assemblies 413 are symmetrically arranged on two sides of the clamping module 414. The driving rod 412 is used to drive the two jaw assemblies 413 toward or away from each other, so that the two jaw assemblies 413 are adapted to the size of the chuck. The two jaw assemblies 413 are used for clamping the chuck together, and the clamping module 414 is used for mounting a connecting shaft of the second target 420.
Specifically, the driving rod 412 has a first thread section and an adjacent second thread section, the first thread section and the second thread section have opposite rotation directions, one of the jaw assemblies 413 is in threaded connection with the first thread section, and the other jaw assembly 413 is in threaded connection with the second thread section, so that when the driving rod 412 is screwed, the two jaw assemblies 413 approach to or move away from each other.
During installation, when the hub clip 410 needs to be calibrated, the hub clip 410 needs to be installed on the second installation part 150, and then the second target 420 needs to be installed on the hub clip 410. In this way, the camera assembly of the four-wheel aligner can indirectly obtain the position of the hub clip 410 through the second target 420, thereby completing the calibration of the hub clip 410. In this embodiment, the second target 420 has a structure similar to that of the first target 300, and is provided with a target plate and a connecting shaft, and is connected to the hub clamp by the connecting shaft during installation.
Further, in order to avoid the situation that the two jaw assemblies 413 are higher and lower relative to the chuck when the hub clamp 410 is mounted to the chuck, the end portions of the jaws 4132 are formed into a flat abutting plane, and the abutting planes of the two jaw assemblies 413 are in the same plane, and the two jaws are symmetrical relative to the center line of the hub clamp 410, so that when the abutting planes of the jaws 413 at the two ends abut against the surfaces of the first end plate 152 and the second end plate 153, the two ends of the hub clamp 410 are in the same plane.
It should be understood that, when calibration is performed, the first target 300 is mounted on the calibration frame 100 of the present embodiment, and with the help of the calibration pattern on the first target 300, after the camera component of the four-wheel aligner takes the calibration pattern of the first target 300, the main unit of the four-wheel aligner can calculate the supplement required by the camera component relative to the factory parameters, and after the compensation amount required by the camera component is obtained, the parameters of the camera component in the four-wheel aligner can be adjusted according to the compensation amount, so as to complete calibration of the camera component. Subsequently, the hub clamp assembly 400 is mounted on the second mounting part 150, and the calibrated camera assembly captures calibration patterns of the two second targets 420 to know the compensation amount required to be set on the four-wheel aligner by the hub clamp 410, so as to calibrate the hub clamp.
By adopting the calibration frame 100 in the embodiment of the invention, the first target 300 and the hub clamp assembly 400 can be installed, the calibration of the camera assembly and the hub clamp can be completed without two calibration frames, the cost is reduced, the space is saved, and the use is more convenient.
As shown in fig. 7, a calibration apparatus 500 according to another embodiment of the present invention is used for calibrating a four-wheel aligner, and includes the calibration frame 100 and two first targets 300 in the above embodiment, wherein two ends of the rotating shaft 120 are respectively provided with a first insertion hole (not shown) and a second insertion hole (not shown), and the two first targets are respectively mounted in the first insertion hole and the second insertion hole, so that the four-wheel aligner can calibrate a camera assembly by means of the two first targets 300.
In some embodiments, the first and second sockets are threaded holes, and each of the first targets has a threaded portion (not shown) that is threadedly connected to the threaded hole, so that the first target 300 is mounted on the rotating shaft 120. Of course, the first target 300 and the rotating shaft 120 may be connected by other structures, for example, the side portions of the two ends of the rotating shaft 120 are respectively provided with a first internal threaded hole (not labeled) and a second internal threaded hole (not labeled), and the calibration device 500 is further provided with a first screw (not labeled) and a second screw (not labeled), the first screw is screwed in the first internal threaded hole, and the second screw is screwed in the second internal threaded hole, so that the first target is fixedly mounted on the rotating shaft 120.
As shown in fig. 9, a calibration apparatus 600 according to another embodiment of the present invention is provided for calibrating a four-wheel aligner, and includes the calibration frame 100 of the above embodiment, a first hub clip (not shown) mounted to one of the second mounting members 150, a second hub clip (not shown) mounted to the other of the second mounting members 150, and two second targets respectively mounted to the first hub clip and the second hub clip for calibrating the first hub clip and the second hub clip. So, four-wheel aligner can be with the help of two the second mark target realizes pressing from both sides the demarcation of first wheel hub clamp and second wheel hub clamp.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (18)
1. The utility model provides a mark frame for carry out calibration to four-wheel aligner, its characterized in that includes:
the bracket assembly comprises a first bracket, a second bracket and a connecting piece, wherein the first bracket and the second bracket are arranged at intervals, and two ends of the connecting piece are respectively connected with the first bracket and the second bracket;
the rotating shaft is arranged between the first support frame and the second support frame, the central axis of the rotating shaft is a mandrel, and the rotating shaft can rotate around the mandrel;
the two first mounting pieces are respectively arranged at two end parts of the rotating shaft and used for mounting and supporting a first target, and the first target is provided with calibration patterns and used for calibrating a camera component in the four-wheel aligner;
the two second mounting pieces are respectively arranged at two end parts of the rotating shaft and are used for mounting and supporting the hub clamp assembly, and the hub clamp assembly comprises a hub clamp and a second target mounted on the hub clamp;
after the camera assembly in the four-wheel aligner finishes calibration through the first target, the camera assembly is further used for calibrating the hub clamp on the second mounting part.
2. The calibration frame according to claim 1, wherein the first support frame includes a first support portion and a first receiving portion connected to the first support portion, the second support frame includes a second support portion and a second receiving portion connected to the second support portion, the first support portion and the second support portion are both configured to abut against a support surface, and the first receiving portion and the second receiving portion abut against two end portions of the rotation shaft, respectively.
3. Calibration frame according to claim 2, wherein the first support part has at least one first support foot, the second support part has at least two second support feet, and the at least one first support foot and the at least two second support feet are arranged in a polygon.
4. The calibration rack according to claim 3, wherein the number of the first supporting legs is one, the number of the second supporting legs is two, and the first supporting legs and the two second supporting legs are arranged in a triangle.
5. The calibration frame according to claim 2, wherein the first receiving portion is provided with a first locking groove, the second receiving portion is provided with a second locking groove, one end of the rotation shaft abuts against a groove bottom of the first locking groove, and the other end of the rotation shaft abuts against a groove bottom of the second locking groove.
6. Calibration frame according to claim 5, characterized in that the first and/or second clamping groove is V-shaped.
7. The calibration rack according to claim 5, wherein the rotating shaft is provided with a first limiting protrusion and two second limiting protrusions, the first limiting protrusion and one of the second limiting protrusions are positioned at one end of the rotating shaft, and the first limiting protrusion and the second limiting protrusion are arranged at intervals to form a notch, and the notch is used for being clamped with the first bearing part; and the other second limiting protrusion is positioned at the other end of the rotating shaft, wherein the second mounting part is connected with the second limiting protrusion.
8. The calibration frame as claimed in claim 1, wherein the first mounting member is a sleeve, the sleeve is fixedly connected to the rotation shaft, the sleeve is provided with a mounting hole, the first target comprises a target plate and a connecting shaft connected to the target plate, the connecting shaft is mounted in the mounting hole, and the target plate is provided with the calibration pattern.
9. The calibration rack of claim 8, further comprising a knob, the sleeve having a first threaded aperture, the knob threadably coupled to the first threaded aperture;
when the connecting shaft of the first target is mounted in the mounting hole, the knob is screwed and the end part of the knob is abutted to the connecting shaft of the first target so as to lock the first target.
10. The calibration frame according to claim 1, wherein the second mounting member is a chuck, the chuck includes a fixing plate, a first end plate and a second end plate, the first end plate and the second end plate are respectively and fixedly mounted at two ends of the fixing plate, the fixing plate is sleeved and fixed on the rotating shaft, outer edges of the first end plate and the second end plate are both arc-shaped, and the first end plate and the second end plate are used for clamping the hub clamp.
11. The calibration rack according to any one of claims 3 to 10, further comprising an adjusting member, wherein the second supporting foot is provided with a threaded through hole, the adjusting member is screwed in the threaded through hole, and the end part of the adjusting member can be exposed out of the threaded through hole so as to adjust the height difference between the two second supporting feet.
12. The calibration frame according to claim 1, further comprising a locking mechanism for locking the connecting member and the rotating shaft so as to fix the connecting member and the rotating shaft.
13. The calibration frame of claim 12, wherein the locking mechanism comprises a locking lever, a first clip, a second clip, a third clip, and a fourth clip;
first card and second card interval set up in the one end of check lock lever, first card and second card are used for the centre gripping the pivot, third card and fourth card interval set up in the other end of check lock lever, third card and fourth card are used for the centre gripping the connecting piece.
14. Calibration frame according to claim 13,
a first through hole is formed in one end, far away from the locking rod, of the first clamping piece, and a second through hole is formed in one end, far away from the locking rod, of the second clamping piece;
a third through hole is formed in one end, far away from the rotating shaft, of the third clamping piece, and a fourth through hole is formed in one end, far away from the rotating shaft, of the fourth clamping piece;
the locking mechanism further comprises a first bolt, a second bolt, a first nut and a second nut, the first bolt sequentially penetrates through the first through hole and the second through hole and then is in threaded connection with the first nut, and the second bolt sequentially penetrates through the third through hole and the fourth through hole and then is in threaded connection with the second nut.
15. A calibration device for calibrating a four-wheel aligner, comprising:
the calibration frame as claimed in any one of claims 1 to 14, wherein both ends of the rotation shaft are respectively provided with a first insertion hole and a second insertion hole;
and the two first targets are respectively arranged in the first jack and the second jack.
16. The calibration apparatus as recited in claim 15, wherein the first and second sockets are threaded holes, and both of the first targets have threaded portions that are threadedly connected to the threaded holes so that the first targets are mounted to the shaft.
17. The calibration device according to claim 15, further comprising a first screw and a second screw, wherein a first internal threaded hole and a second internal threaded hole are respectively formed in side portions of two ends of the rotating shaft, the first screw is screwed in the first internal threaded hole, and the second screw is screwed in the second internal threaded hole, so that the first target is fixedly mounted on the rotating shaft.
18. A calibration device for calibrating a four-wheel aligner, comprising:
calibration stand according to any one of claims 1-14;
the first hub clamp is mounted on the second mounting piece;
a second hub clamp mounted to the other of the second mounting members;
the two second targets are respectively installed on the first hub clamp and the second hub clamp, and the two second targets are used for calibrating the first hub clamp and the second hub clamp.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011358091.8A CN112557062B (en) | 2020-11-27 | 2020-11-27 | Calibration frame and calibration equipment |
| PCT/CN2021/130126 WO2022111297A1 (en) | 2020-11-27 | 2021-11-11 | Calibration rack and calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011358091.8A CN112557062B (en) | 2020-11-27 | 2020-11-27 | Calibration frame and calibration equipment |
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| CN112557062A true CN112557062A (en) | 2021-03-26 |
| CN112557062B CN112557062B (en) | 2024-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011358091.8A Active CN112557062B (en) | 2020-11-27 | 2020-11-27 | Calibration frame and calibration equipment |
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| Country | Link |
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| CN (1) | CN112557062B (en) |
| WO (1) | WO2022111297A1 (en) |
Cited By (3)
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| CN114211182A (en) * | 2021-12-25 | 2022-03-22 | 苏州华亚智能科技股份有限公司 | Welding positioning device and welding method for controlling concentricity |
| CN114264272A (en) * | 2022-01-19 | 2022-04-01 | 深圳市道通科技股份有限公司 | Calibration support and calibration system |
| WO2022111297A1 (en) * | 2020-11-27 | 2022-06-02 | 深圳市道通科技股份有限公司 | Calibration rack and calibration device |
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Also Published As
| Publication number | Publication date |
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| WO2022111297A1 (en) | 2022-06-02 |
| CN112557062B (en) | 2024-09-20 |
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