CN110763124A - Rapid detection system and detection method for flatness and coaxiality of automobile steering wheel - Google Patents
Rapid detection system and detection method for flatness and coaxiality of automobile steering wheel Download PDFInfo
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- CN110763124A CN110763124A CN201911155839.1A CN201911155839A CN110763124A CN 110763124 A CN110763124 A CN 110763124A CN 201911155839 A CN201911155839 A CN 201911155839A CN 110763124 A CN110763124 A CN 110763124A
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- steering wheel
- leveling
- flatness
- top end
- detection
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a rapid detection system for the planeness and the coaxiality of an automobile steering wheel, which relates to the technical field of the detection of the automobile steering wheel.A leveling mechanism is correspondingly arranged at each of four corners of a rectangular end surface at the bottom of an equipment bearing base, a leveling reference assembly is fixedly arranged at the geometric center position of the top end surface of a bearing surface plate, the leveling mechanisms and the leveling reference assemblies are matched with each other for use in the actual operation process, the four leveling mechanisms can deal with a bearing base surface which is not in the horizontal state originally by adjusting the height of the four leveling mechanisms, when the whole device is placed on the bearing base surface which is not in the horizontal state originally, a worker adjusts the leveling mechanisms and uses the leveling reference assemblies as the basis for judging whether the whole device is in the horizontal state or not, so that the whole device is always in the horizontal state before and in the detection process, and the detection of the planeness and the, the accuracy of the data is improved.
Description
Technical Field
The invention relates to the technical field of automobile steering wheel detection, in particular to a rapid detection system and a detection method for flatness and coaxiality of an automobile steering wheel.
Background
The gauge is mainly defined by simple tools for controlling various sizes (such as aperture, space size and the like) of products by production enterprises, improves the production efficiency and controls the quality, and is suitable for mass-produced products such as automobile parts to replace professional measuring tools such as calipers, screw plug gauges, outer diameter calipers and the like. The design is examined a utensil and need have an obvious characteristic, that is possess the adjustability, and most part can satisfy the detection of different model products through the adjustment to need guarantee high precision.
The vehicle maneuverability is a difference between a result obtained by an operation on a direction, a brake, an accelerator, various technologies and condition configurations of a vehicle, and the like, and a target requirement level which a driver intends to make a prediction when a problem of the vehicle or an external factor occurs during the driving of the vehicle. The main factors affecting the performance of the steering are the power, suspension, and steering system, and the steering wheel as an important structure of the steering system can be said to be an important factor affecting the steering.
The steering wheel is a wheel-shaped device for controlling the driving direction, is generally connected with a steering shaft through a spline, and has the main function of converting the force applied to the edge of the steering wheel by a driver into torque and then transmitting the torque to the steering shaft. The steering wheel frame is generally formed by die casting. The important device as the control form has two important parameters which can directly influence the whole performance of the steering wheel, one is the planeness of the steering wheel, and if the edge of the steering wheel has no good planeness, the important device has great influence on the control and steering precision of the whole automobile. Another important parameter is the coaxiality between the steering wheel and the steering shaft, and if the coaxiality of the steering wheel and the steering shaft is not matched, the assembly is easily impossible.
Through retrieval, the Chinese patent discloses a device for detecting the flatness and the coaxiality of a steering wheel (publication number CN 106091874B), the patent content of which comprises a fixed disc, a gauge main body is arranged above the fixed disc, the gauge main body comprises a coaxial detector, a plurality of plane detectors, a supporting plate and a supporting shaft positioned on the supporting plate, a rotating body is arranged between the supporting shaft and the coaxial detector, the rotating body is connected with the plane detectors through a radius adjusting arm, the plane detectors are provided with pressure sensors, and a supporting main body is arranged between the supporting plate and the fixed disc; the invention has simple operation, strong universality and high precision.
In the above patent and the prior art devices for detecting the flatness of the steering wheel of an automobile, the following disadvantages exist, which result in inaccurate data for actually detecting the flatness of the steering wheel:
1. the most main problem of the above patent is that before the detection, the leveling process of the whole device is lacked, and if the detection device cannot be ensured to be in a horizontal state, the obtained data is inaccurate for the flatness detection in the later direction;
2. the second problem of the above patent is that, the steering wheel in a placed state is determined by using a pressure sensor to transmit a value, and whether the threshold value of the flatness is within a specified range, however, when one steering wheel is placed on three load-bearing carriers, the three load-bearing carriers can share the weight of the steering wheel, and the phenomenon that the values of the pressures transmitted by the corresponding pressure sensors in the three load-bearing carriers are different due to the flatness problem of the steering wheel itself does not occur, so that the problem of inaccurate data exists, and the cost of using the pressure sensors is high.
In summary, those skilled in the art have proposed a system and a method for rapidly detecting the flatness and coaxiality of an automobile steering wheel.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rapid detection system and a detection method for the flatness and the coaxiality of an automobile steering wheel, and solves the problems that the conventional detection device for the flatness and the coaxiality of the steering wheel cannot be ensured to be in a horizontal state during detection and the detection data is inaccurate.
In order to achieve the purpose, the invention is realized by the following technical scheme: quick detecting system of car steering wheel plane degree and axiality, including equipment bearing base, equipment bearing base is cuboid and inside hollow structure that is, four corners of equipment bearing base bottom rectangle terminal surface all correspond and install a leveling mechanism, the top end face of equipment bearing base has the bearing panel of a looks adaptation through bolt fixed mounting, the geometric centre position fixed mounting of bearing panel top end face has the leveling to refer to the subassembly, and bearing panel's top end face is located the leveling and refers to the subassembly and locate fixed mounting have steering wheel fixed establishment of position directly over, bearing panel's top end face just is located the outside position department fixed mounting of steering wheel fixed establishment middle zone section and has the plane degree to refer to the subassembly, steering wheel fixed establishment's the fixed centre gripping of top end face is provided with steering wheel subassembly.
Preferably, leveling mechanism includes the interior silk section of thick bamboo of four corners of fixed mounting in equipment bearing base bottom rectangle terminal surface, the inside of interior silk section of thick bamboo is rotated through the mode of screw and is connected with the screw thread post, screw thread post middle part threaded district's section rotates and is connected with the fine setting nut, and screw thread post bottom does not have the threaded district's section, and its outside has cup jointed fastening nut through the welding mode, the bottom of screw thread post is through welding mode fixedly connected with footing.
Preferably, the leveling is referred the water storage box that the subassembly includes that fixed mounting puts at bearing face plate top end face geometric centre, liquid water has been held in the inside of water storage box, the top end face of water storage box has sealed block through threaded connection, the embedded fixed mounting of top end face of sealed block has the window, the top end face of window is provided with the leveling and refers to the ruling.
Preferably, the liquid level of the liquid water is not in contact with the inner top end of the sealing cap, and air bubbles exist in a gap between the liquid level and the inner top end of the sealing cap.
Preferably, the flatness reference assembly comprises two support columns fixedly installed on the top end face of the bearing surface plate, the top end faces of the two support columns are jointly connected with a hollow disc body in the middle, and the top end face of the disc body is fixedly connected with scribing paper through an adhesive mode.
Preferably, the steering wheel fixing mechanism comprises a chassis, the top end face of the chassis is fixedly connected with the bottom end of the bearing stand column, the top end face of the bearing stand column is fixedly provided with a coaxial detection assembly, the top end of the coaxial detection assembly is movably connected with a detachable handheld marking mechanism, the side wall of the chassis is correspondingly connected with three support legs respectively, the top edge side of each support leg is correspondingly connected with a supporting vertical plate, and the top ends of the three supporting vertical plates are fixedly provided with a holding fixing assembly.
Preferably, the coaxial detection assembly comprises a coaxial detector with a bottom end fixedly mounted at the top of the bearing upright post, and a joint post is fixedly mounted on the top end face of the coaxial detector.
The handheld marking mechanism comprises a base plate movably connected to the end face of the top of the connecting column, a movable and detachable connecting structure is formed between the base plate and the connecting column through a bearing seat, the end face of the top of the base plate is fixedly connected with one end of a transmission plate, a marker pen is fixedly connected to the inner portion of the other end of the transmission plate, and a handle is fixedly connected to the upper surface of one end of the transmission plate.
Preferably, add and hold fixed subassembly including the support of fixed and support riser top end face, the top end face fixedly connected with of support "L" font structure decides the splint, one side of deciding the splint is provided with respectively moves splint and cylinder, the drive end fixedly connected with of cylinder moves splint, decide splint and move and be connected through the spout between the splint, and decide the splint and move the adjacent terminal surface of splint and all be provided with the protection pad.
Preferably, the steering wheel assembly comprises a holding ring fixedly clamped at the top of the steering wheel fixing mechanism, an auxiliary plate is fixedly connected to the inner side wall of the holding ring, and a through type fixedly connected with linking shaft sleeve is arranged at the center of the auxiliary plate.
The invention also relates to a detection method of the rapid detection system for the flatness and the coaxiality of the automobile steering wheel, which comprises the following steps:
s1, leveling by equipment: leveling the whole equipment by using a leveling mechanism and a leveling reference assembly, wherein during leveling, an operator uses a wrench to screw a fastening nut to enable the fastening nut to drive a threaded column and a bottom foot to rotate, the distance between a fine adjustment nut and an inner screw cylinder can be adjusted in the rotating process of the threaded column, the operator needs to observe whether bubbles are positioned at the center of a leveling reference scribed line in the adjusting process, and when the bubbles are positioned at the inner center of the leveling reference scribed line, the leveling operation is stopped, so that the whole equipment is ensured to be always in a horizontal state in the detection process;
s2, fixing the steering wheel: the whole steering wheel assembly is placed in the clamping sections of the three clamping and fixing assemblies, when the steering wheel assembly is placed, not only is the connecting shaft sleeve required to be sleeved outside the coaxial detector ensured, but also the holding ring is required to be positioned in a clamping cavity between the fixed clamping plate and the movable clamping plate in the three clamping and fixing assemblies, and then the air cylinder is enabled to act to clamp and fix the whole steering wheel assembly;
s3, placing a handheld marking mechanism: after the steering wheel assembly in the step S2 is fixed, one end of the whole handheld scribing mechanism is sleeved outside the whole linking column, and a detachable rotating structure between the handheld scribing mechanism and the linking column is formed by means of a bearing seat;
s4, coaxiality detection: the coaxial detector is of a cylindrical structure, can simulate the connection mode between the automobile steering shaft and the connecting shaft sleeve, and judges the coaxiality of the steering wheel according to whether the cylinder can penetrate through the connecting shaft sleeve or not;
s5, flatness detection: after the whole handheld marking mechanism in the step S3 is placed, adjusting the distance between the pen point of the marking pen and the marking paper to ensure that the pen point of the marking pen is just contacted with the upper surface of the marking paper, then, an operator holds the handle by hand and twists the handle towards one direction to enable the handle to drive the transmission plate to rotate by taking the handle as an axis, wherein the bottom end face of the transmission plate is always contacted with the upper surface of the holding ring in the rotating process of the transmission plate, then, the transmission plate drives the marking pen to do circular motion to enable the pen point of the marking pen to draw a circular detection line on the upper surface of the marking paper, and the circular detection line is used as a track line left by the marking pen in the circular motion process;
s6, flatness judgment: according to the circular detection line drawn on the upper surface of the marking paper in the step S5, whether the circular detection line has sections with different depths and broken sections, wherein the lighter sections and the broken sections both represent that the section of the steering wheel corresponding to the position is higher, and the flatness of the corresponding steering wheel is lower, so that the detection of the flatness of the steering wheel can be completed.
Advantageous effects
The invention provides a rapid detection system and a detection method for the flatness and the coaxiality of an automobile steering wheel. Compared with the prior art, the method has the following beneficial effects:
1. the system for rapidly detecting the planeness and the coaxiality of the steering wheel of the automobile comprises a leveling mechanism, a bearing panel, a leveling reference assembly, a leveling mechanism and a leveling reference assembly, wherein the leveling mechanism is correspondingly arranged at four corners of a rectangular end face at the bottom of an equipment bearing base, the bearing panel is matched with the top end face of the equipment bearing base through bolts, the leveling reference assembly is fixedly arranged at the geometric center of the top end face of the bearing panel, the leveling mechanism and the leveling reference assembly are matched with each other in the actual operation process, the four leveling mechanisms can be used for dealing with a bearing base plane which is not in the horizontal state originally by adjusting the height of the four leveling mechanisms, when the whole device is placed on the bearing base plane which is not in the horizontal state originally, a worker adjusts the leveling mechanisms and uses the leveling reference assembly as the basis for judging whether the whole device is in the horizontal state or not, so, the method is beneficial to improving the detection of the flatness and the coaxiality of the steering wheel and improving the accuracy of data.
2. This quick detecting system of car steering wheel plane degree and axiality, when detecting the steering wheel plane degree, use the axle center of steering wheel as the centre of a circle through operating personnel, the indirect mode that drives the marker pen and draw a circle on drawing line paper, because the marker pen is at the in-process of drawing a circle, the lower surface of driving plate is all the time to grip the upper surface contact of circle with the steering wheel, consequently, the plane degree that grips the circle when the steering wheel changes, the nib of marker pen will light contact or not contact between the drawing line paper, light contact can lead to the colour of drawing the pitch arc at this district section marker pen is lighter, and can lead to can not drawing the pitch arc at this district section marker pen during contactless, lead to the disconnection of drawing the circular track, thereby judge whether qualified the plane degree of whole steering wheel is qualified.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the steering wheel assembly of the present invention shown with the steering wheel assembly removed;
FIG. 3 is a schematic structural view of a leveling mechanism of the present invention;
FIG. 4 is a schematic structural view of a leveling reference assembly of the present invention;
FIG. 5 is a schematic view of a flatness reference assembly according to the present invention;
FIG. 6 is a schematic structural view of a steering wheel fixing mechanism according to the present invention;
FIG. 7 is a schematic view of the coaxial probe assembly of the present invention;
FIG. 8 is a schematic structural view of a handheld scribing mechanism according to the invention;
FIG. 9 is a schematic view of a clamping fixture assembly according to the present invention;
fig. 10 is a structural view of a steering wheel assembly according to the present invention.
In the figure: 1. an equipment carrying base; 2. a leveling mechanism; 21. an inner wire barrel; 22. a threaded post; 23. fine adjustment of the nut; 24. fastening a nut; 25. footing; 3. a load bearing panel; 4. leveling a reference assembly; 41. a water storage box; 42. liquid water; 43. air bubbles; 44. sealing the cap; 45. a window; 46. leveling the reference reticle; 5. a flatness reference assembly; 51. supporting the upright post; 52. a tray body; 53. scribing paper; 6. a steering wheel fixing mechanism; 61. a chassis; 62. a support leg; 63. a load bearing column; 64. a coaxial detection assembly; 641. a coaxial detector; 642. connecting the column; 65. a handheld scribing mechanism; 651. a substrate; 652. a bearing seat; 653. a drive plate; 654. a handle; 655. a marking pen; 66. supporting a vertical plate; 67. holding the fixed component; 671. a support; 672. fixing the clamping plate; 673. a movable clamping plate; 674. a cylinder; 675. a protective pad; 7. a steering wheel assembly; 71. a grip ring; 72. an auxiliary plate; 73. the shaft sleeve is connected.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a rapid detection system for the planeness and the coaxiality of an automobile steering wheel comprises an equipment bearing base 1, wherein the equipment bearing base 1 is a cuboid and is of a hollow structure, four corners of a rectangular end surface at the bottom of the equipment bearing base 1 are correspondingly provided with a leveling mechanism 2, the top end surface of the equipment bearing base 1 is fixedly provided with a bearing panel 3 which is matched with the equipment bearing base through bolts, the geometric center position of the top end surface of the bearing panel 3 is fixedly provided with a leveling reference component 4, and the position of the top end surface of the bearing panel 3 right above the leveling reference component 4 is fixedly provided with a steering wheel fixing mechanism 6, the position of the top end surface of the bearing panel 3 and the outer side of the middle section of the steering wheel fixing mechanism 6 is fixedly provided with a flatness reference component 5, and the top end surface of the steering wheel fixing mechanism 6 is fixedly clamped with a steering wheel component 7.
Referring to fig. 3, the leveling mechanism 2 includes inner screw cylinders 21 fixedly installed at four corners of a rectangular end surface at the bottom of the equipment bearing base 1, the inner portions of the inner screw cylinders 21 are rotatably connected with threaded columns 22 in a threaded manner, sections with threads at the middle portions of the threaded columns 22 are rotatably connected with fine tuning nuts 23, sections without threads at the bottom portions of the threaded columns 22 are fixedly connected with fastening nuts 24 at the outer portions thereof in a welding manner, and bottom ends of the threaded columns 22 are fixedly connected with bottom feet 25 in a welding manner.
Referring to fig. 4, the leveling reference assembly 4 includes a water storage box 41 fixedly installed at a geometric center of a top end surface of the carrier panel 3, liquid water 42 is contained in the water storage box 41, the top end surface of the water storage box 41 is connected with a sealing cap 44 through a thread, a window 45 is fixedly installed in an embedded manner on the top end surface of the sealing cap 44, a leveling reference reticle 46 is provided on the top end surface of the window 45, a liquid level of the liquid water 42 is not in contact with an inner top end of the sealing cap 44, and a gap between the two is filled with bubbles 43.
Referring to fig. 5, the flatness reference assembly 5 includes two support columns 51 fixedly mounted on the top end surface of the bearing panel 3, the top end surfaces of the two support columns 51 are commonly connected with a hollow plate 52, and the top end surface of the plate 52 is fixedly connected with a piece of scribing paper 53 by gluing.
Referring to fig. 6, the steering wheel fixing mechanism 6 includes a chassis 61, a top end surface of the chassis 61 is fixedly connected with a bottom end of a bearing upright 63, a coaxial detecting assembly 64 is fixedly mounted on the top end surface of the bearing upright 63, a detachable handheld marking mechanism 65 is movably connected to a top end of the coaxial detecting assembly 64, three support legs 62 are correspondingly connected to a side wall of the chassis 61 respectively, a supporting upright plate 66 is correspondingly connected to a top edge side of each support leg 62, and a holding fixing assembly 67 is fixedly mounted on top ends of the three supporting upright plates 66.
Referring to fig. 7, the coaxial detecting assembly 64 includes a coaxial detector 641 having a bottom end fixedly mounted on the top of the supporting column 63, and an engaging column 642 fixedly mounted on the top end surface of the coaxial detector 641.
Referring to fig. 8, the handheld scribing mechanism 65 includes a base plate 651 movably connected to the top end surface of the connecting post 642, a movable and detachable connecting structure is formed between the base plate 651 and the connecting post 642 through a bearing pedestal 652, one end of a driving plate 653 is fixedly connected to the top end surface of the base plate 651, a marking pen 655 is fixedly connected to the inside of the other end of the driving plate 653, and a handle 654 is fixedly connected to the upper surface of one end of the driving plate 653.
Referring to fig. 9, the clamping and fixing assembly 67 includes a bracket 671 for fixing and supporting the top end surface of the vertical plate 66, the top end surface of the bracket 671 is fixedly connected with a fixed clamp plate 672 with an "L" shaped structure, one side of the fixed clamp plate 672 is respectively provided with a movable clamp plate 673 and an air cylinder 674, the driving end of the air cylinder 674 is fixedly connected with the movable clamp plate 673, the fixed clamp plate 672 is connected with the movable clamp plate 673 through a chute, and the adjacent end surfaces of the fixed clamp plate 672 and the movable clamp plate 673 are respectively provided with a protection pad 675.
Referring to fig. 10, the steering wheel assembly 7 includes a holding ring 71 fixedly clamped on the top of the steering wheel fixing mechanism 6, an auxiliary plate 72 is fixedly connected to the inner side wall of the holding ring 71, and a connecting shaft sleeve 73 is fixedly connected to the center of the auxiliary plate 72 in a penetrating manner.
The invention also relates to a detection method of the rapid detection system for the flatness and the coaxiality of the automobile steering wheel, which comprises the following steps:
s1, leveling by equipment: leveling the whole equipment by using the leveling mechanism 2 and the leveling reference assembly 4, wherein during leveling, an operator uses a wrench to screw the fastening nut 24 to enable the fastening nut 24 to drive the threaded column 22 and the bottom foot 25 to rotate, the distance between the fine adjustment nut 23 and the inner screw cylinder 21 can be adjusted in the rotating process of the threaded column 22, in the adjusting process, the operator needs to observe whether the air bubble 43 is positioned at the center of the leveling reference scribed line 46, and when the air bubble 43 is positioned at the inner center of the leveling reference scribed line 46, the leveling operation is stopped, so that the whole equipment is ensured to be always in a horizontal state in the detection process;
s2, fixing the steering wheel: the whole steering wheel assembly 7 is placed in the clamping sections of the three clamping and fixing assemblies 67, when the steering wheel assembly is placed, not only is the connecting shaft sleeve 73 required to be sleeved outside the coaxial detector 641, but also the holding ring 71 is required to be positioned in a clamping cavity between the fixed clamping plate 672 and the movable clamping plate 673 in the three clamping and fixing assemblies 67, and then the air cylinder 674 is enabled to act to clamp and fix the whole steering wheel assembly 7;
s3, placing the handheld marking mechanism 65: after the steering wheel assembly 7 in the step S2 is fixed, one end of the whole handheld scribing mechanism 65 is sleeved outside the whole joining column 642, and a detachable rotating structure between the handheld scribing mechanism 65 and the joining column 642 is formed by means of the bearing pedestal 652;
s4, coaxiality detection: the coaxial detector 641 is a cylinder structure, which can simulate the connection mode between the steering shaft of the automobile and the connecting shaft sleeve 73, and judge the coaxiality of the steering wheel by whether the cylinder can pass through the connecting shaft sleeve 73;
s5, flatness detection: after the whole handheld marking mechanism 65 in the step S3 is placed, adjusting the distance between the pen tip of the marker 655 and the marking paper 53 to ensure that the pen tip of the marker 655 is just in contact with the upper surface of the marking paper 53, then an operator holds the handle 654 by hand, screws the handle 654 in one direction, and drives the transmission plate 653 to rotate around the handle 654, wherein the bottom end face of the transmission plate 653 is always in contact with the upper surface of the grip ring 71 during the rotation of the transmission plate 653, and then the transmission plate 653 drives the marker 655 to make a circular motion to draw a circular detection line on the upper surface of the marking paper 53 by the pen tip of the marker 655, and the circular detection line is used as a trajectory line left by the marker 655 during the circular motion;
s6, flatness judgment: according to the circular detection line drawn on the upper surface of the marking paper 53 in step S5, it is observed whether there are sections with different depths and broken sections in the circular detection line, where the lighter sections and the broken sections both represent that the section of the steering wheel corresponding to the position is higher, and the flatness of the corresponding steering wheel is lower, so that the detection of the flatness of the steering wheel can be completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Quick detection system of car steering wheel plane degree and axiality, including equipment bearing base (1), its characterized in that, equipment bearing base (1) is the cuboid and inside is hollow structure, four corners of equipment bearing base (1) bottom rectangle terminal surface all correspond and install a leveling mechanism (2), the top terminal surface of equipment bearing base (1) has a bearing panel (3) of looks adaptation through bolt fixed mounting, the geometric centre position fixed mounting of bearing panel (3) top terminal surface has leveling reference subassembly (4), and the top terminal surface of bearing panel (3) is located leveling reference subassembly (4) directly over the position department fixed mounting have steering wheel fixed establishment (6), the top terminal surface of bearing panel (3) just is located the outside position department fixed mounting of steering wheel fixed establishment (6) middle section and has the plane degree to refer to subassembly (5), the steering wheel fixing mechanism (6) is fixedly clamped with a steering wheel assembly (7) on the top end face.
2. The system for rapidly detecting the flatness and the coaxiality of the steering wheel of the automobile according to claim 1, wherein the leveling mechanism (2) comprises inner screw cylinders (21) fixedly installed at four corners of a rectangular end face at the bottom of an equipment bearing base (1), the inner portions of the inner screw cylinders (21) are rotatably connected with threaded columns (22) in a threaded mode, sections with threads in the middle of the threaded columns (22) are rotatably connected with fine adjustment nuts (23), sections without threads at the bottom of the threaded columns (22) are fixedly sleeved with fastening nuts (24) in a welding mode, and the bottom ends of the threaded columns (22) are fixedly connected with feet (25) in a welding mode.
3. The system for rapidly detecting the flatness and the coaxiality of the steering wheel of the automobile according to claim 1, wherein the leveling reference assembly (4) comprises a water storage box (41) fixedly installed at the geometric center position of the top end face of the bearing panel (3), liquid water (42) is contained in the water storage box (41), the top end face of the water storage box (41) is connected with a sealing cap (44) through threads, a window (45) is fixedly installed in an embedded manner on the top end face of the sealing cap (44), and a leveling reference scribed line (46) is arranged on the top end face of the window (45).
4. The system for the rapid detection of the flatness and coaxiality of the steering wheel of an automobile according to claim 3, wherein the liquid level of the liquid water (42) does not contact the inner top end of the sealing cap (44), and a bubble (43) is present in the gap between the liquid water and the sealing cap.
5. The system for rapidly detecting the flatness and the coaxiality of the steering wheel of the automobile as claimed in claim 1, wherein the flatness reference assembly (5) comprises two support columns (51) fixedly installed on the top end face of the bearing panel (3), the top end faces of the two support columns (51) are jointly connected with a disc body (52) with a hollow middle, and the top end face of the disc body (52) is fixedly connected with a piece of scribing paper (53) in an adhesive manner.
6. The system for rapidly detecting the flatness and the coaxiality of the automobile steering wheel according to claim 1, wherein the steering wheel fixing mechanism (6) comprises a chassis (61), the top end face of the chassis (61) is fixedly connected with the bottom end of a bearing upright post (63), the top end face of the bearing upright post (63) is fixedly provided with a coaxial detection assembly (64), the top end of the coaxial detection assembly (64) is movably connected with a detachable handheld marking mechanism (65), the side wall of the chassis (61) is correspondingly connected with three support legs (62) respectively, the top edge side of each support leg (62) is correspondingly connected with a support vertical plate (66), and the top ends of the three support vertical plates (66) are fixedly provided with a clamping fixing assembly (67).
7. The system for rapidly detecting the flatness and the coaxiality of the steering wheel of the automobile according to claim 6, wherein the coaxial detection assembly (64) comprises a coaxial detector (641) with the bottom end fixedly installed at the top of a bearing upright post (63), and an engagement post (642) is fixedly installed on the top end surface of the coaxial detector (641);
handheld marking mechanism (65) are including swing joint in base plate (651) of linking post (642) top terminal surface, form activity and removable connection structure through bearing frame (652) between base plate (651) and linking post (642), the one end of base plate (651) top terminal surface fixedly connected with driving plate (653), inside fixedly connected with marker pen (655) of the other end of driving plate (653), the last fixed surface of driving plate (653) one end is connected with handle (654).
8. The system for rapidly detecting the flatness and the coaxiality of the automobile steering wheel according to claim 6, wherein the clamping and fixing assembly (67) comprises a bracket (671) for fixing and supporting the top end face of the vertical plate (66), the top end face of the bracket (671) is fixedly connected with a fixed clamping plate (672) of an L-shaped structure, one side of the fixed clamping plate (672) is provided with a movable clamping plate (673) and an air cylinder (674), the driving end of the air cylinder (674) is fixedly connected with a movable clamping plate (673), the fixed clamping plate (672) is connected with the movable clamping plate (673) through a sliding groove, and the adjacent end faces of the fixed clamping plate (672) and the movable clamping plate (673) are provided with a protection pad (675).
9. The system for rapidly detecting the flatness and the coaxiality of the steering wheel of the automobile according to claim 1, wherein the steering wheel assembly (7) comprises a holding ring (71) fixedly clamped at the top of a steering wheel fixing mechanism (6), an auxiliary plate (72) is fixedly connected to the inner side wall of the holding ring (71), and a connecting shaft sleeve (73) is fixedly connected to the center of the auxiliary plate (72) in a penetrating manner.
10. The detection method of the rapid detection system for the flatness and the coaxiality of the automobile steering wheel is characterized by comprising the following steps of:
s1, leveling by equipment: leveling treatment is carried out on the whole equipment by utilizing the leveling mechanism (2) and the leveling reference assembly (4), when leveling is carried out, an operator utilizes a wrench to screw the fastening nut (24) to enable the fastening nut (24) to drive the threaded column (22) and the bottom foot (25) to rotate, the distance between the fine adjustment nut (23) and the inner wire barrel (21) can be adjusted in the rotating process of the threaded column (22), in the adjusting process, the operator needs to observe whether the air bubble (43) is positioned at the center of the leveling reference scribed line (46), and after the air bubble (43) is positioned at the inner center of the leveling reference scribed line (46), leveling operation is stopped, so that the whole equipment is ensured to be in a horizontal state all the time in the detection process;
s2, fixing the steering wheel: the whole steering wheel assembly (7) is placed in clamping sections of three clamping and fixing assemblies (67), when the steering wheel assembly is placed, not only is the connecting shaft sleeve (73) required to be sleeved outside the coaxial detector (641), but also the holding ring (71) is required to be positioned in a clamping cavity between a fixed clamping plate (672) and a movable clamping plate (673) in the three clamping and fixing assemblies (67), and then the air cylinder (674) is allowed to act to clamp and fix the whole steering wheel assembly (7);
s3, placing a handheld marking mechanism (65): after the steering wheel assembly (7) in the step S2 is fixed, one end of the whole handheld scribing mechanism (65) is sleeved outside the whole connecting column (642), and a detachable rotating structure between the handheld scribing mechanism (65) and the connecting column (642) is formed by means of the bearing seat (652);
s4, coaxiality detection: the coaxial detector (641) is of a cylinder structure and can simulate the connection mode between an automobile steering shaft and the connecting shaft sleeve (73), and the coaxiality of the steering wheel can be judged by whether the cylinder can penetrate through the connecting shaft sleeve (73);
s5, flatness detection: after the whole handheld marking mechanism (65) in the step S3 is placed, adjusting the distance between the pen tip of the marker pen (655) and the marking paper (53), ensuring that the pen tip of the marker pen (655) is just in contact with the upper surface of the marking paper (53), then an operator holds the handle (654), and screws the handle (654) in one direction, so that the handle (654) drives the transmission plate (653) to rotate around the handle (654), and in the process of rotation of the transmission plate (653), the bottom end face of the transmission plate (653) is always in contact with the upper surface of the holding ring (71), and then the transmission plate (653) drives the marker pen (655) to do circular motion, so that the pen tip of the marker pen (655) draws a circular detection line on the upper surface of the marking paper (53), and the circular detection line is used as a track line left by the marker pen (655) in the circular motion process;
s6, flatness judgment: according to the circular detection line drawn on the upper surface of the scribing paper (53) in the step S5, whether the circular detection line has sections with different depths and broken sections is observed, the lighter sections and the broken sections represent that the section of the steering wheel corresponding to the position is higher, the flatness of the corresponding steering wheel is lower, and the detection of the flatness of the steering wheel can be completed.
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