CN111156870A

CN111156870A - Quick gauge for position degrees of two perpendicular apertures of automobile steering gear housing

Info

Publication number: CN111156870A
Application number: CN201911364004.7A
Authority: CN
Inventors: 寻伟基
Original assignee: Tongling Yixin Machinery Manufacturing Co ltd
Current assignee: Tongling Yixin Machinery Manufacturing Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-05-15

Abstract

The invention belongs to the technical field of product detection, and particularly relates to a quick detection tool for the position degree of two vertical apertures of a steering gear box of an automobile, which comprises a base; the base is fixedly connected with an upright post, a group of L-shaped swing rods are uniformly distributed on the circumference of the upright post, and the middle part of each swing rod is hinged with the upright post; a clamping block is hinged to the top end of the oscillating rod, an annular supporting disk is placed on the upper portion of the bottom end of the oscillating rod, an adjusting rod is arranged between the supporting disk and the oscillating rod, and the adjusting rod is in threaded connection with the oscillating rod; one side of the supporting plate is fixedly connected with a transverse plate, a sliding block is connected in a sliding groove formed in the transverse plate in a sliding manner, and one side of the sliding block, which is close to the upright post, is fixedly connected with a positioning column; according to the invention, the shell is placed on the supporting plate and is pressed downwards, so that the clamping block is driven to quickly center the aperture, the aperture in the horizontal direction in the shell is conveniently positioned after the positioning column slides, and the detection efficiency of the aperture position degree is improved.

Description

Quick gauge for position degrees of two perpendicular apertures of automobile steering gear housing

Technical Field

The invention belongs to the technical field of product detection, and particularly relates to a quick detection tool for the position degrees of two vertical apertures of an automobile steering gear shell.

Background

The automobile steering device is also called steering machine and steering machine, and is the most important part in automobile steering system. It has the following functions: increasing the force transmitted by the steering wheel to the steering gear and changing the direction of force transmission.

Rack and pinion, worm crankpin and recirculating ball types are commonly used.

1) A rack and pinion steering gear: it is one of the most common steering gears. The basic structure is a pair of pinion and rack gears which mesh with each other. When the steering shaft drives the pinion to rotate, the rack makes linear motion. Sometimes, the steering wheel can be steered by directly driving the tie rod by the rack. This is therefore the simplest steering gear. Its advantages are simple structure, low cost, flexible steering, small size and direct drive of tie rod. The method is widely applied to automobiles.

2) Worm crankpin steering: the steering gear takes a worm as a driving part and takes a crank pin as a driven part. The worm has a trapezoidal thread, and a finger-shaped conical finger is supported by a bearing on a crank, which is formed integrally with the steering rocker shaft. When the steering wheel is turned, the worm and the conical finger pin embedded in the spiral groove of the worm rotate while doing circular arc motion around the steering rocker shaft, so that the crank and the steering vertical arm are driven to swing, and the steering wheel is deflected through the steering transmission mechanism. Such a steering gear is generally used for a truck having a large steering force.

3) Recirculating ball-type steering gear: the main structure of the recirculating ball power-assisted steering system consists of two parts: a mechanical part and a hydraulic part. The mechanical part consists of a shell, a side cover, an upper cover, a lower cover, a circulating ball screw, a rack nut, a rotary valve core and a fan gear shaft. Wherein there are two pairs of transmission pairs: one pair is a screw and a nut, and the other pair is a rack, a sector or a sector shaft. The steel ball capable of circularly rolling is arranged between the screw rod and the rack nut, so that the sliding friction is changed into rolling friction, and the transmission efficiency is improved. The steering gear has the advantages of convenient operation, small abrasion and long service life. The disadvantages are that the structure is complex, the cost is high, and the steering sensitivity is not as good as that of a rack-and-pinion type.

The steering gear is the most important part of the automobile for steering function, and needs to adopt alloy with stable structure and difficult deformation as a shell. The crossing hole of mutually perpendicular has all been seted up to the usual direction machine, and the position accuracy direct influence direction machine in crossing hole turns to precision and life, and the location is complicated when having the utensil of examining now to detect two perpendicular aperture position degrees, and positioning efficiency is lower, need carry out the secondary when detecting aperture size precision simultaneously and press from both sides the dress, increases the wearing and tearing to the casing aperture, reduces detection efficiency.

Disclosure of Invention

In order to make up for the defects of the prior art, the problem that the steering gear is provided with mutually perpendicular crossed holes, the position accuracy of the crossed holes directly influences the steering accuracy and the service life of the steering gear is solved, the existing checking fixture is complex in positioning and low in positioning efficiency when detecting the position accuracy of two perpendicular apertures, secondary clamping is needed when detecting the size accuracy of the apertures, abrasion to the apertures of a shell is increased, and the detection efficiency is reduced is solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a quick gauge for the position of two vertical apertures of an automobile steering gear housing, which comprises a base; the base is fixedly connected with an upright post, a group of L-shaped swing rods are uniformly distributed on the circumference of the upright post, and the middle part of each swing rod is hinged with the upright post; a clamping block is hinged to the top end of the oscillating rod, an annular supporting disk is placed on the upper portion of the bottom end of the oscillating rod, an adjusting rod is arranged between the supporting disk and the oscillating rod, and the adjusting rod is in threaded connection with the oscillating rod; one side of the supporting plate is fixedly connected with a transverse plate, a sliding block is connected in a sliding groove formed in the transverse plate in a sliding mode, and one side, close to the stand column, of the sliding block is fixedly connected with a positioning column; the shell is placed on the supporting plate and pressed downwards, so that the fixture block is driven to quickly center the aperture, the aperture in the horizontal direction in the shell is conveniently positioned after the positioning column slides, and the detection efficiency of the aperture position degree is improved; the during operation, with the automobile direction casing of measuring volume, put on the supporting disk, make the fixture block stretch into in the vertical aperture in the casing, the supporting disk moves down under the weight of dead weight and casing, and then oppression regulation pole and pendulum rod, make the pendulum rod drive the aperture inner wall of vertical direction on the fixture block chucking casing after rotating, and then make the casing aperture accomplish the location fast, later remove the slider to the direction that is close to the casing, drive the reference column and insert in the aperture of horizontal direction on the casing, two perpendicular aperture position degrees of short-term test casing and the straightness that hangs down, increase and examine the detection efficiency of utensil to casing aperture position degree.

Preferably, an annular plug gauge is arranged on the inner ring of the support plate, is fixedly connected with the stand column and is concentric with the stand column, and is clamped into the plug gauge after the shell descends, so that the aperture deviation is rapidly measured, the detection steps of the aperture precision are reduced, and the detection efficiency of the aperture position degree and the precision of the shell is further improved; after the casing descends along with the supporting disk, the aperture of vertical direction inserts in the plug gage on the casing, and then makes the big or small precision in plug gage rapid survey aperture, reduces the secondary and presss from both sides the step of dress and measurement aperture size, reduces and presss from both sides the dress error, reduces and presss from both sides the wearing and tearing that the dress caused the aperture inner wall many times, increases the detection efficiency of aperture size precision simultaneously, further increases the detection efficiency of casing aperture position degree and precision.

Preferably, the top of the plug gauge is fixedly connected with a wear-resistant circular truncated cone, so that the impact and wear on the plug gauge are reduced through the circular truncated cone, the service life of the plug gauge is prolonged, and the measurement accuracy of the pore size is further improved; the circular truncated cone guides and corrects the falling process of the aperture, further reduces the impact and abrasion of the edge of the aperture on the plug gauge, reduces the scratch on the surface of the plug gauge, further prolongs the service life of the plug gauge, and further increases the measurement precision of the size of the aperture.

Preferably, a group of cylinder barrels are uniformly distributed on the circumference between the bottom of the supporting disk and the base, the cylinder barrels are fixedly connected with the base, and the top of a piston rod which is connected in the cylinder barrels in a sliding mode is fixedly connected with the supporting disk; the bottom of the cylinder barrel is provided with a micropore with a smaller diameter, and a return spring is arranged between the piston rod and the bottom of the cylinder barrel; the descending speed of the shell to be measured is reduced through slow exhaust of the micropores, impact and abrasion on the fixture block and the plug gauge are further reduced, and the detection precision of the aperture position degree and the size of the shell is further improved; when the supporting disk moves downwards under the pressure of the shell, the piston rod is driven to slide downwards in the cylinder barrel, the discharge speed of air in the cylinder barrel is limited by the micropores formed in the bottom of the cylinder barrel, the shell is made to slowly descend, the shell is prevented from quickly impacting the plug gauge, the abrasion of the plug gauge is further reduced, the scratch of the inner wall of the aperture of the shell in the vertical direction due to the fixture block is reduced, and the detection accuracy of the aperture position degree and the size of the shell is further improved.

Preferably, one side of the fixture block, which is far away from the center of the upright post, is provided with a group of exhaust holes, the bottom of each exhaust hole is provided with an air duct, and the air duct is communicated with the micropores through a hose; air exhausted by the micropores is sprayed out through the exhaust holes, so that impurities in the aperture of the shell to be measured are further reduced, the scratch of the aperture is reduced, and the detection precision of the aperture position is improved; through the gaseous follow exhaust hole blowout after the guide with micropore combustion gas through hose and wind channel, and then blow off the impurity of aperture inner wall adhesion, guarantee fixture block and aperture inner wall fully contact, increase the fixture block to the positioning accuracy in aperture, further reduce the fish tail in aperture, increase the detection precision in aperture position degree.

Preferably, the air duct is internally provided with sponge, the sponge is filled with graphite powder, the graphite powder is driven by airflow to be sprayed out of the exhaust holes, the abrasion of the aperture and the fixture block is further reduced, and the service life of the fixture block is prolonged; the end, close to the air duct, of the exhaust hole is provided with a baffle, the length of the baffle is sequentially reduced from bottom to top, the air duct formed in the sponge is reduced through the baffle, the lubricating effect of the graphite powder on the clamping block is further increased, and the detection precision of the aperture position degree is further increased; when the airflow blown out of the hose flows through the sponge, the airflow blows and carries the graphite powder in the sponge, so that the graphite powder is blown out of the exhaust holes, the friction between the fixture block and the inner wall of the hole diameter is further reduced, the scratch of the hole diameter and the abrasion of the fixture block are further reduced, and the detection precision of the detection tool on the hole diameter position of the shell is improved; because the exhaust hole is close to the one end in wind channel and is opened there is the baffle, and supreme length reduces in proper order down to the baffle, reduces because when the air current velocity of flow of wind channel lower part is great, forms the great air flue orbit of diameter in the sponge, and then reduces the air current and carries the efficiency that is the graphite powder, reduces the lubricating efficiency of graphite powder to the fixture block, and then further increases the detection precision of aperture position degree.

The invention has the following beneficial effects:

1. according to the quick gauge for the position of the two vertical apertures of the casing of the automobile steering gear, the supporting disc moves downwards under the self weight and the weight of the casing to further press the adjusting rod and the swing rod, so that the swing rod is driven to rotate to drive the clamping block to clamp the inner wall of the aperture in the vertical direction on the casing, the aperture of the casing is quickly positioned, then the sliding block moves towards the direction close to the casing to drive the positioning column to be inserted into the aperture in the horizontal direction on the casing, the position and the verticality of the two vertical apertures of the casing are quickly detected, and the detection efficiency of the gauge for the position of the aperture of the casing is improved.

2. According to the quick gauge for the position degrees of the two vertical apertures of the shell of the automobile steering gear, when the supporting disc moves downwards under the pressure of the shell, the piston rod is driven to slide downwards in the cylinder barrel, and the micropore formed in the bottom of the cylinder barrel limits the discharge speed of air in the cylinder barrel, so that the shell slowly descends, the quick impact of the shell on the plug gauge is avoided, the abrasion of the plug gauge is further reduced, the scratch of the fixture block on the inner wall of the aperture of the shell in the vertical direction is reduced, and the detection precision of the position degree and the size of the aperture of the shell is further improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

in the figure: the device comprises a base 1, a stand column 11, a swing rod 12, a fixture block 2, a supporting plate 13, an adjusting rod 14, a transverse plate 15, a slide block 16, a positioning column 17, a plug gauge 3, a circular table 31, a cylinder 21, a piston rod 22, a micropore 23, an exhaust hole 24, an air duct 25, a hose 26, a sponge 27 and a baffle 28.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, the quick gauge for measuring the location of two vertical apertures of a steering gear box of an automobile comprises a base 1; the base 1 is fixedly connected with an upright post 11, a group of L-shaped swing rods 12 are uniformly distributed on the circumference of the upright post 11, and the middle parts of the swing rods 12 are hinged with the upright post 11; a fixture block 2 is hinged to the top end of the swing rod 12, an annular supporting plate 13 is placed on the upper portion of the bottom end of the swing rod 12, an adjusting rod 14 is arranged between the supporting plate 13 and the swing rod 12, and the adjusting rod 14 is in threaded connection with the swing rod 12; a transverse plate 15 is fixedly connected to one side of the supporting plate 13, a sliding block 16 is connected in a sliding groove formed in the transverse plate 15 in a sliding mode, and a positioning column 17 is fixedly connected to one side, close to the upright post 11, of the sliding block 16; the shell is placed on the supporting plate 13 and is pressed downwards, so that the fixture block 2 is driven to quickly center the aperture, the aperture in the horizontal direction in the shell is conveniently positioned after the positioning column 17 slides, and the detection efficiency of the aperture position degree is improved; the during operation, with the automobile direction casing of measuring volume, put on supporting disk 13, make fixture block 2 stretch into in the vertical aperture in the casing, supporting disk 13 moves down under the weight of dead weight and casing, and then oppression regulation pole 14 and pendulum rod 12, make pendulum rod 12 rotate the aperture inner wall of vertical direction on the drive fixture block 2 chucking casing, and then make the casing aperture accomplish the location fast, later with 16 to the direction removal of being close to the casing of slider, drive reference column 17 insert in the aperture of horizontal direction on the casing, two perpendicular aperture position degrees of short-term test casing and the straightness that hangs down, increase and examine the detection efficiency of utensil to casing aperture position degree.

As an embodiment of the invention, an annular plug gauge 3 is arranged on an inner ring of the support plate 13, the plug gauge 3 is fixedly connected with the upright post 11 and is concentric with the upright post 11, and the plug gauge 3 is clamped into the plug gauge 3 after the shell descends, so that the aperture deviation is rapidly measured, the detection steps of the aperture precision are reduced, and the detection efficiency of the shell aperture position degree and precision is further increased; after the casing descends along with supporting disk 13, the aperture of vertical direction inserts in the plug 3 on the casing, and then makes the big or small precision in plug 3 rapid survey aperture, reduces the secondary and presss from both sides the step of dress and measurement aperture size, reduces and presss from both sides the dress error, reduces and presss from both sides the wearing and tearing that the dress caused the aperture inner wall many times, increases the detection efficiency of aperture size precision simultaneously, further increases the detection efficiency of casing aperture position degree and precision.

As an implementation mode of the invention, the top of the plug gauge 3 is fixedly connected with a wear-resistant circular truncated cone 31, the impact and wear on the plug gauge 3 are reduced by the circular truncated cone 31, the service life of the plug gauge 3 is prolonged, and the measurement accuracy of the pore size is further improved; the circular truncated cone 31 guides and corrects the falling process of the aperture, so that the impact and abrasion of the edge of the aperture on the plug gauge 3 are further reduced, the scratch on the surface of the plug gauge 3 is reduced, the service life of the plug gauge 3 is further prolonged, and the measurement accuracy of the aperture is further improved.

As an embodiment of the invention, a group of cylinder barrels 21 are uniformly distributed on the circumference between the bottom of the supporting disk 13 and the base 1, the cylinder barrels 21 are fixedly connected with the base 1, and the top of a piston rod 22 which is slidably connected with the cylinder barrels 21 is fixedly connected with the supporting disk 13; a micropore 23 with a smaller diameter is formed in the bottom of the cylinder 21, and a return spring is arranged between the piston rod 22 and the bottom of the cylinder 21; the descending speed of the shell to be measured is reduced by slowly exhausting through the micropores 23, so that the impact and abrasion on the fixture block 2 and the plug gauge 3 are further reduced, and the detection precision of the position degree and the size of the hole diameter of the shell is further improved; when supporting disk 13 moves down under the pressure of casing, drive piston rod 22 and slide down in cylinder 21, because the discharge velocity of the interior air of micropore 23 restriction cylinder 21 that the cylinder 21 bottom was seted up, and then make the casing descend slowly, avoid the casing to the quick impact of feeler gauge 3, and then further reduce the wearing and tearing of feeler gauge 3, reduce the fish tail of fixture block 2 to the aperture inner wall of the vertical direction of casing simultaneously, further increase the detection precision of casing aperture position degree and size.

As an embodiment of the invention, one side of the fixture block 2 away from the center of the upright post 11 is provided with a group of exhaust holes 24, the bottom of each exhaust hole 24 is provided with an air duct 25, and each air duct 25 is communicated with the micro-hole 23 through a hose 26; air exhausted through the micropores 23 is ejected through the exhaust holes 24, so that impurities in the aperture of the shell to be measured are further reduced, the scratch of the aperture is reduced, and the detection precision of the aperture position is improved; through the gaseous follow exhaust hole 24 blowout behind the guide with micropore 23 discharge gas through hose 26 and wind channel 25, and then blow off the impurity of aperture inner wall adhesion, guarantee fixture block 2 and aperture inner wall full contact, increase fixture block 2 and to the positioning accuracy in aperture, further reduce the fish tail in aperture, increase the detection precision of aperture position degree.

As an embodiment of the invention, the air duct 25 is provided with a sponge 27, the sponge 27 is filled with graphite powder, and the graphite powder is driven by airflow to be ejected from the exhaust hole 24, so that the abrasion of the aperture and the fixture block 2 is further reduced, and the service life of the fixture block 2 is prolonged; a baffle 28 is arranged at one end of the exhaust hole 24 close to the air duct 25, the length of the baffle 28 is sequentially reduced from bottom to top, the air duct formed in the sponge 27 is reduced through the baffle 28, the lubricating effect of the graphite powder on the fixture block 2 is further increased, and the detection precision of the aperture position degree is further increased; when the airflow blown out from the hose 26 flows through the sponge 27, the airflow blows and carries the graphite powder in the sponge 27, so that the graphite powder is blown out from the exhaust hole 24, the friction between the fixture block 2 and the inner wall of the aperture is further reduced, the scratch of the aperture and the abrasion of the fixture block 2 are further reduced, and the detection precision of the detection tool on the aperture position of the shell is increased; because exhaust hole 24 is close to the one end of wind channel 25 and is opened there is baffle 28, and baffle 28 from supreme length reduces in proper order down, reduces because when the air current velocity of flow of wind channel 25 lower part is great, forms the great air flue orbit of diameter in sponge 27, and then reduces the air current and carries the efficiency that is the graphite powder, reduces the lubrication efficiency of graphite powder to fixture block 2, and then further increases the detection precision of aperture position degree.

During operation, the automobile steering gear box to be measured is placed on the supporting disc 13, the clamping block 2 extends into a vertical hole in the shell, the supporting disc 13 moves downwards under the self weight and the weight of the shell, and then the adjusting rod 14 and the oscillating bar 12 are pressed, so that the oscillating bar 12 rotates to drive the clamping block 2 to clamp the inner wall of the hole in the vertical direction in the shell, the hole diameter of the shell is quickly positioned, then the sliding block 16 moves towards the direction close to the shell, the positioning column 17 is driven to be inserted into the hole diameter in the horizontal direction in the shell, the position degree and the verticality of two vertical holes of the shell are quickly detected, and the detection efficiency of the detection tool on the hole diameter position degree of the; after the shell descends along with the supporting plate 13, the aperture in the vertical direction on the shell is inserted into the plug gauge 3, so that the accuracy of the size of the aperture of the plug gauge 3 can be rapidly measured, the steps of secondary clamping and aperture size measurement are reduced, clamping errors are reduced, the abrasion of the inner wall of the aperture caused by multiple times of clamping is reduced, meanwhile, the detection efficiency of the aperture size accuracy is increased, and the detection efficiency of the aperture position degree and the accuracy of the shell is further increased; the circular truncated cone 31 guides and corrects the falling process of the aperture, so that the impact and abrasion of the edge of the aperture on the plug gauge 3 are further reduced, the scratch on the surface of the plug gauge 3 is reduced, the service life of the plug gauge 3 is further prolonged, and the measurement accuracy of the aperture is further improved; when the supporting disk 13 moves downwards under the pressure of the shell, the piston rod 22 is driven to slide downwards in the cylinder 21, and the micropore 23 formed in the bottom of the cylinder 21 limits the discharge speed of air in the cylinder 21, so that the shell slowly descends, the shell is prevented from quickly impacting the plug gauge 3, the abrasion of the plug gauge 3 is further reduced, meanwhile, the scratch of the inner wall of the aperture of the shell in the vertical direction by the fixture block 2 is reduced, and the detection precision of the position degree and the size of the aperture of the shell is further improved; the gas discharged from the micropores 23 is guided by the hose 26 and the air duct 25 and then is sprayed out from the air discharge hole 24, so that impurities adhered to the inner wall of the aperture are blown off, the fixture block 2 is ensured to be fully contacted with the inner wall of the aperture, the positioning precision of the fixture block 2 to the aperture is increased, the scratch of the aperture is further reduced, and the detection precision of the aperture position is increased; when the airflow blown out from the hose 26 flows through the sponge 27, the airflow blows and carries the graphite powder in the sponge 27, so that the graphite powder is blown out from the exhaust hole 24, the friction between the fixture block 2 and the inner wall of the aperture is further reduced, the scratch of the aperture and the abrasion of the fixture block 2 are further reduced, and the detection precision of the detection tool on the aperture position of the shell is increased; because exhaust hole 24 is close to the one end of wind channel 25 and is opened there is baffle 28, and baffle 28 from supreme length reduces in proper order down, reduces because when the air current velocity of flow of wind channel 25 lower part is great, forms the great air flue orbit of diameter in sponge 27, and then reduces the air current and carries the efficiency that is the graphite powder, reduces the lubrication efficiency of graphite powder to fixture block 2, and then further increases the detection precision of aperture position degree.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick detection tool of two perpendicular aperture position degrees of automobile steering gear casing which characterized in that: comprises a base (1); the base (1) is fixedly connected with an upright post (11), a group of L-shaped swing rods (12) are uniformly distributed on the circumference of the upright post (11), and the middle parts of the swing rods (12) are hinged with the upright post (11); a clamping block (2) is hinged to the top end of the oscillating rod (12), an annular supporting plate (13) is placed on the upper portion of the bottom end of the oscillating rod (12), an adjusting rod (14) is arranged between the supporting plate (13) and the oscillating rod (12), and the adjusting rod (14) is in threaded connection with the oscillating rod (12); a transverse plate (15) is fixedly connected to one side of the supporting plate (13), a sliding block (16) is connected in a sliding groove formed in the transverse plate (15) in a sliding mode, and a positioning column (17) is fixedly connected to one side, close to the upright column (11), of the sliding block (16); through placing the casing at supporting disk (13) and pushing down, drive fixture block (2) and center the aperture fast, make things convenient for reference column (17) to slide the back and fix a position the aperture of horizontal direction in the casing, improve the detection efficiency of aperture position degree.

2. The quick gauge for measuring the location degree of the two vertical apertures of the shell of the automobile steering gear box according to claim 1, wherein: the inner ring of the supporting plate (13) is provided with an annular plug gauge (3), the plug gauge (3) is fixedly connected with the upright post (11) and is concentric with the upright post (11), the plug gauge (3) is clamped into the plug gauge (3) after the shell descends, the aperture deviation is rapidly measured, the detection step of the aperture precision is reduced, and the detection efficiency of the shell aperture position degree and the precision is further improved.

3. The quick gauge for measuring the position of two vertical apertures of the shell of the automobile steering gear box according to claim 2, wherein: the top of the plug gauge (3) is fixedly connected with a wear-resistant circular truncated cone (31), impact and abrasion on the plug gauge (3) are reduced through the circular truncated cone (31), the service life of the plug gauge (3) is prolonged, and the measurement accuracy of the aperture is further improved.

4. The quick gauge for measuring the position of two vertical apertures of the shell of the automobile steering gear box according to claim 2, wherein: a group of cylinder barrels (21) are uniformly distributed on the circumference between the bottom of the supporting plate (13) and the base (1), the cylinder barrels (21) are fixedly connected with the base (1), and the top of a piston rod (22) which is connected in the cylinder barrel (21) in a sliding mode is fixedly connected with the supporting plate (13); a micropore (23) with a smaller diameter is formed in the bottom of the cylinder barrel (21), and a return spring is arranged between the piston rod (22) and the bottom of the cylinder barrel (21); the descending speed of the shell to be measured is reduced through slow exhaust of the micropores (23), impact and abrasion on the fixture block (2) and the plug gauge (3) are further reduced, and the detection accuracy of the hole diameter position degree and size of the shell is further improved.

5. The quick gauge for measuring the location degree of the two vertical apertures of the shell of the automobile steering gear box according to claim 4, wherein: one side, far away from the center of the upright post (11), of the fixture block (2) is provided with a group of exhaust holes (24), the bottom of each exhaust hole (24) is provided with an air duct (25), and each air duct (25) is communicated with the corresponding micropore (23) through a hose (26); air exhausted through the micropores (23) is ejected through the exhaust holes (24), impurities in the aperture of the shell to be measured are further reduced, the scratch of the aperture is reduced, and meanwhile the detection precision of the aperture position degree is improved.

6. The quick gauge for measuring the location degree of the two vertical apertures of the shell of the automobile steering gear box according to claim 5, wherein: the air duct (25) is internally provided with a sponge (27), the sponge (27) is filled with graphite powder, the graphite powder is driven by airflow to be sprayed out from the exhaust holes (24), the abrasion of the aperture and the fixture block (2) is further reduced, and the service life of the fixture block (2) is prolonged; exhaust hole (24) are close to the one end in wind channel (25) and are opened baffle (28), and supreme length reduces in proper order down in baffle (28), reduces the air flue that forms in sponge (27) through baffle (28), further increases the lubricated effect of graphite powder to fixture block (2), and then further increases the detection precision of aperture position degree.