CN109539929B - Torsion beam testing fixture device - Google Patents
Torsion beam testing fixture device Download PDFInfo
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- CN109539929B CN109539929B CN201811426735.5A CN201811426735A CN109539929B CN 109539929 B CN109539929 B CN 109539929B CN 201811426735 A CN201811426735 A CN 201811426735A CN 109539929 B CN109539929 B CN 109539929B
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- ejector rod
- sliding sleeve
- torsion beam
- rod
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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
Abstract
The invention relates to a torsion beam checking fixture device which comprises a base, and a left front bushing support, a right front bushing support, a left front support rod, a right front support rod, a left rear support rod and a right rear support rod which are arranged on the base. According to the torsion beam limiting device, the fitting plane is formed at the top ends of the left front support rod, the left rear support rod, the right front support rod and the right rear support rod, so that three degrees of freedom of Z-direction movement, X-axis rotation and Y-axis rotation of the torsion beam are limited, the conical surfaces of the left conical surface ejector rod and the right conical surface ejector rod limit three degrees of freedom of X-direction movement, Y-direction movement and Z-axis rotation of the torsion beam, six degrees of freedom of the torsion beam are limited, and the situation that all references of the checking fixture cannot generate over-positioning and over-constraint when the degrees of freedom of the torsion beam are limited can; and the equipment is simple and convenient to operate, and the detection efficiency is high.
Description
Technical Field
The invention belongs to the technical field of finished automobile manufacturing detection, and particularly relates to a torsion beam detection tool device.
Background
The torsion beam axle type suspension is one of automobile rear suspension types, is called torsion beam suspension for short, balances the vertical jump of a left wheel and a right wheel through a torsion beam to reduce the swing of a vehicle and keep the stability of the vehicle, is mainly suitable for the rear suspension of a light weight FF vehicle, is not one of independent suspensions, and is also called a semi-independent rear suspension because longitudinal arms of the torsion beam axle type suspension can be twisted relatively.
The torsion beam suspension comprises a torsion beam, a shock absorber and a spiral spring, wherein the front end of the torsion beam is connected with a pivot and a vehicle body through a bushing on a trailing arm, and the left side and the right side of the rear side of the torsion beam are respectively provided with a wheel. The torsion beam is a key part in the torsion beam suspension, and the torsion beam is formed by welding a stamping part and a hydroforming part, so the torsion beam is called a torsion beam welding assembly. If the cross beam in the torsion beam is located at the pivot, the suspension is a pivoting torsion beam suspension; if the cross member in the torsion beam is located between the pivot and the axle, the suspension is a coupled torsion beam suspension; if the cross member in the torsion beam is located at the axle, the suspension is an axle type torsion beam suspension. The axle torsion beam suspension also has a panhard rod for bearing the lateral forces of the vehicle. Coupled and axle torsion beam suspensions are also provided with torsion bars in order to increase roll stiffness.
Almost all manufacturers adopt a coupling type torsion beam suspension, and round steel pipes are made into V-shaped, U-shaped, I-shaped and other cross sections through a hydraulic forming process, so that the cross sections are used as cross beams, the roll stiffness can be improved, a torsion bar is omitted, the weight is reduced, and the cost is saved. The cross beam is welded with the sleeve, the longitudinal arm, the cross beam, the hub shaft support, the spring seat, the shock absorber support and the like after hydraulic forming is completed to form the torsion beam, and as shown in fig. 1, the cross beam is bilaterally symmetrical and comprises a left sleeve 01, a left longitudinal arm 02, a cross beam 03, a left hub shaft support 04, a left spring seat 05, a left shock absorber support 06, a right sleeve 07, a right longitudinal arm 08, a right hub shaft support 09, a right spring seat 010 and a right shock absorber support 011.
The checking fixture is special equipment for positioning and checking dimensions and geometric tolerances of various parts of complex automobile parts, can improve production efficiency and control quality, is suitable for products produced in large batches like the automobile parts, replaces professional measuring tools such as calipers, thread plug gauges, outer diameter snap gauges and the like, and can check the mutual relation among various characteristics of the parts which cannot be checked by the professional measuring tools.
Any measuring tool needs to measure the reference, but the torsion beam is a curved surface except for the outer sides of the flange surfaces of the left hub shaft support and the right hub shaft support, and cannot be directly used as the reference.
The welding structure of the torsion beam is complex, the surface is irregular, the checking fixture can judge whether the design requirements among all the bodies of the torsion beam are met, and the dimensional tolerance and the geometric tolerance of all the bodies of the torsion beam are checked, so that the design of the positioning reference of the checking fixture is difficult. The detection tool of the torsion beam is a key tool for ensuring the product quality, a reference target is correctly selected on a curved surface during design, then a reference surface capable of placing the torsion beam is determined, six degrees of freedom of the torsion beam are limited together with hole references, and the fact that the references of the detection tool cannot generate over-positioning and over-constraint when the degrees of freedom of the torsion beam are limited is guaranteed, so that the accuracy of the detection tool can be guaranteed, and whether the manufacture of the torsion beam meets the design requirements can be correctly judged.
Fig. 2 shows a prior art device for checking a torsion beam welding structure, which includes a base 020, a height-adjustable bracket 021, a longitudinal sliding rail 022, a transverse sliding rail 023, a steady sliding block 024, and a pressure sensor 025. However, the gauge cannot judge whether the various bodies of the torsion beam meet the design requirements or not and cannot check the dimensional tolerance and the geometric tolerance of the various bodies of the torsion beam; and the degree of freedom can not be completely limited, and the inspection precision can not be ensured.
Disclosure of Invention
The invention aims to provide a torsion beam detection tool device, which solves the problems that the torsion beam detection tool in the prior art cannot detect the dimensional tolerance and the geometric tolerance of each body of a torsion beam, and the detection precision cannot be ensured because the degree of freedom cannot be completely limited.
The invention is realized by the following technical scheme:
a torsion beam gauge device comprises a base, a left front bushing support, a right front bushing support, a left front support rod, a right front support rod, a left rear support rod and a rear support rod, wherein the left front bushing support, the right front bushing support, the left front support rod, the right front support rod, the left rear support rod and the rear support rod are arranged on the base;
the left front bushing support comprises a left front bushing seat, a left sliding sleeve, a left conical ejector rod, a first spring and a first ejector rod;
the left conical ejector rod consists of a first ejector rod body and a first conical surface body, and a gauge mounting hole is formed in the center of the first conical surface body;
the right front bushing support comprises a right front bushing seat, a right sliding sleeve, a right conical ejector rod, a second spring and a second ejector rod;
the right conical ejector rod consists of a second ejector rod body and a second conical surface body, and a gauge mounting hole is formed in the center of the second conical surface body;
the left rear supporting rod and the right rear supporting rod have the same structure and respectively comprise a first cylinder and a second cylinder, and the lower end of the first cylinder is fixedly connected with the base;
the left front supporting rod and the right front supporting rod are identical in structure and respectively comprise a supporting rod body and an adjustable screw rod arranged on the supporting rod body.
A first stepped sliding sleeve through hole passing through the center and first through holes at two sides of the first stepped sliding sleeve through hole are formed in the left front bushing seat;
the left sliding sleeve penetrates through the first stepped sliding sleeve through hole, and the left conical surface mandril penetrates through the left sliding sleeve;
a first spring and a first ejector rod are arranged in each first through hole;
and a first ejector rod through hole corresponding to the first through hole is formed in the left sliding sleeve, and the first ejector rod penetrates through the first ejector rod through hole to abut against the left conical surface ejector rod.
First threaded holes are uniformly formed in the steps of the first step-shaped sliding sleeve through holes, cone-end fastening screws are arranged in the first threaded holes, and the cone ends of the cone-end fastening screws are abutted to the end portions of the left sliding sleeve.
The outer end of the first through hole is provided with an internal thread, an external thread nut is matched with the internal thread, and the inner end of the external thread nut is abutted to the first spring.
The left sliding sleeve consists of a first cylindrical part and a second cylindrical part which have the same inner diameter, and the outer diameter of the first cylindrical part is smaller than that of the second cylindrical part;
the first cylindrical part penetrates into the first step-shaped sliding sleeve through hole, and the second cylindrical part is provided with a second threaded hole and the first ejector rod through hole.
The first round platform is provided with a first step hole, the first round platform is attached to the end of the second cylinder, and the first step hole is in one-to-one correspondence with the second threaded hole.
The first ejector rod body penetrates through the left sliding sleeve, and a circular ring is arranged at the outer end of the first ejector rod body;
the outer side surface of the first conical surface body sequentially comprises a cylindrical surface, a conical surface, a fillet surface and a round surface.
The height of the left front support rod plus the distance from the left front reference target to the center of the left front bushing are equal to the height of the left rear support rod plus the distance from the left rear reference target to the center of the circular hole of the left hub axle support.
The device comprises a left front bushing pressing tool, a rear pressing tool, a front bushing plug gauge, a left hub shaft checking fixture, a right hub shaft checking fixture, a spring seat checking fixture and a shock absorber support checking fixture;
the left front bushing pressing tool and the rear pressing tool are arranged on the base;
the front bushing plug gauge is in inserted fit with the left conical ejector rod or the right conical ejector rod;
the left hub shaft checking fixture, the right hub shaft checking fixture and the shock absorber support checking fixture are all arranged on the base;
the spring seat check tool is matched with the spring seat.
The front bushing plug gauge comprises a small cylinder, a cylinder and a handle, wherein the outer diameter of the large cylinder is equal to the maximum solid inner diameter of a left flashing bushing inner hole or a right front bushing inner hole, and the small cylinder is inserted into a gauge mounting hole of a left conical ejector rod or a right conical ejector rod.
The invention has the beneficial effects that:
according to the torsion beam limiting device, the fitting plane is formed at the top ends of the left front support rod, the left rear support rod, the right front support rod and the right rear support rod, so that three degrees of freedom of Z-direction movement, X-axis rotation and Y-axis rotation of the torsion beam are limited, the conical surfaces of the left conical surface ejector rod and the right conical surface ejector rod limit three degrees of freedom of X-direction movement, Y-direction movement and Z-axis rotation of the torsion beam, six degrees of freedom of the torsion beam are limited, and the situation that all references of the checking fixture cannot generate over-positioning and over-constraint when the degrees of freedom of the torsion beam are limited can; and the equipment is simple and convenient to operate, and the detection efficiency is high.
Drawings
Fig. 1 is a front view of the torsion beam;
FIG. 2 is a prior art torsion beam gauge apparatus;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is an enlarged view at I of FIG. 4;
FIG. 6 is an enlarged view at I I of FIG. 4;
FIG. 7 is an overall view of the torsion beam gauge;
FIG. 8 is a cross-sectional view A-A of FIG. 7;
FIG. 9 is a cross-sectional view B-B of FIG. 7;
FIG. 10 is a cross-sectional view C-C of FIG. 7;
FIG. 11 is a cross-sectional view D-D of FIG. 7;
fig. 12 is a cross-sectional view E-E of fig. 10.
Description of the reference numerals
01 left sleeve, 02 left trailing arm, 03 cross beam, 04 left hub axle support, 05 left spring seat, 06 left damper support, 07 right sleeve, 08 right trailing arm, 09 right hub axle support, 010 right spring seat, 011 right damper support, 020 base, 021 height adjustable support, 022 longitudinal slide rail, 023 transverse slide rail, 024 stabilizer slide block, 025 pressure sensor, 101 left sleeve, 102 left trailing arm, 103 cross beam, 104 left hub axle support, 105 left spring seat, 106 left damper support, 107 right sleeve, 108 right trailing arm, 109 right hub axle support, 110 right spring seat, 111 right damper support, 112 left front datum target, 113 left rear datum target, 114 right front datum target, 115 right rear datum target, 1 left front bushing support, 11 left front bushing seat, 12 left sliding sleeve, 13 left conical crown, 15 male threaded nut, 16 first spring, 17 first crown, 18 cone end set screw, 2 left front supporting rod, 21 adjustable screw rod 3 left rear supporting rod, 4 right front bushing support, 5 right front supporting rod, 6 right rear supporting rod, 7 torsion beam, 8 bases, 121 first round platform, 41 right front bushing seat, 42 right sliding sleeve, 43 right conical surface ejector rod, 001 left front bushing pressing tool, 002 rear pressing tool, 003 front bushing plug gauge, 004 left hub shaft checking tool, 005 right hub shaft checking tool, spring seat 006 checking tool and 007 shock absorber support checking tool.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 3 to 6, the torsion beam 7 has a left sleeve 101, a left trailing arm 102, a cross member 103, a left hub axle support 104, a left spring seat 105, a left damper bracket 106, a right sleeve 107, a right trailing arm 108, a right hub axle support 109, a right spring seat 110, a right damper bracket 111, and the like.
For the positioning of the torsion beam, four reference targets of a left front reference target 112, a left rear reference target 113, a right front reference target 114 and a right rear reference target 115 are arranged below the torsion beam, the curved surface of the reference targets is in a phi 10 left-right circular range, the flatness is below 0.2, and the left reference target and the right reference target are symmetrical. Three of the left front reference target, the left rear reference target and the right rear reference target may form reference planes which form fitting references with the right front reference target for the lower support and positioning of the torsion beam 7 as shown in fig. 4, 5 and 6.
The application provides a torsion beam gauge device, which comprises a base 8, a left front bushing support 1, a right front bushing support 4, a left front support rod 2, a right front support rod 5, a left rear support rod 3, a right rear support rod 6, a left front bushing pressing tool 001, a rear pressing tool 002, a left hub shaft gauge 004, a right hub shaft gauge 005 and a shock absorber support gauge 007, wherein the left front bushing support 1, the right front bushing support rod 4, the left front support rod 2, the right front support rod 5, the left rear support rod 3 and the; still include preceding bush feeler gauge 003 and spring holder examine utensil 006.
The left front bushing block 1 includes a left front bushing block 11, a left sliding sleeve 12, a left conical ejector 13, a first spring 16, and a first ejector 17, as shown in fig. 10 and 12.
A first step-shaped sliding sleeve through hole consisting of a large hole and a small hole is formed in the center of the left front bushing seat 11, the first step-shaped sliding sleeve through hole penetrates through the center of the left front bushing seat 11, two first through holes are formed in two sides of the first step-shaped sliding sleeve through hole, an internal thread is formed in the outer end of each first through hole and used for installing an external thread nut 15, and a first spring 16 and a first ejector rod 17 are further arranged in each first through hole; the steps of the first step-shaped sliding sleeve hole are provided with four first threaded holes which are uniformly arranged, 4 inner hexagonal cone-end set screws 18 are arranged in the first threaded holes, the cone ends of the 4 inner hexagonal cone-end set screws 18 are in contact with the end part of the first cylindrical part of the left sliding sleeve 12, and the left sliding sleeve 12 can move along the axial direction by rotating the inner hexagonal cone-end set screws 18 by using an L-shaped small wrench, as shown in figures 10 and 12.
The left sliding sleeve 12 is a hollow rotating body, and is composed of a first cylindrical portion and a second cylindrical portion with the same inner diameter, and the outer diameter of the first cylindrical portion is smaller than that of the second cylindrical portion. The first cylindrical part penetrates into the first step-shaped sliding sleeve through hole, and the second cylindrical part is provided with three second threaded holes and a first ejector rod through hole. The three second threaded holes are used for fixing the first round table 121, a first step hole is formed in the first round table, the first round table is attached to the end portion of the second cylinder, and the first step hole corresponds to the second threaded holes one to one. Three second threaded holes are formed in a position, close to the outer edge, of a second cylindrical part of the left sliding sleeve 12, which is fixed by bolts, and the bolts are not exposed after being fixed and are immersed in the first round table 121; the second cylindrical part is also provided with two first mandril through holes, and the outer surface of the first cylinder of the left sliding sleeve 12 is internally connected with the first step-shaped sliding sleeve through hole of the left front bushing seat 11, as shown in fig. 10 and 12.
The left conical ejector rod 13 is provided with a longer cylindrical first ejector rod body and a first conical surface body, and the center of the first conical surface body is also provided with a gauge mounting hole; the outer end of the first ejector rod body is fixed with a circular ring with the outer diameter larger than that of the first ejector rod body by using a bolt and used for pulling the left conical ejector rod 13, and the first ejector rod body is externally connected with the inner cylindrical surface of the left sliding sleeve 12; the first conical surface body consists of a cylindrical surface, a conical surface, a fillet surface and a round surface, the diameter of the small end of the conical surface is d1, the diameter of the large end of the conical surface is d2, d1 is 0.5mm smaller than the maximum solid inner diameter of the inner hole of the left sleeve, d2 is 0.5mm larger than the minimum solid inner diameter of the inner hole of the left sleeve, and the conical surface is in surface line contact with the outer end of the left sleeve when the torsion beam is positioned; through the first top rod perforation on the left sliding sleeve, the elastic force of the first spring 16 makes the outer end of the first top rod 17 prop against the inner side of the first conical surface body of the left conical surface top rod 13, as shown in fig. 10 and 12.
The right front bushing block 4 includes a right front bushing block 41, a right sliding sleeve 42, a right conical push rod 43, a second spring, and a second push rod, as shown in fig. 11.
A second stepped sliding sleeve through hole consisting of a large hole and a small hole is formed in the center of the right front bushing seat, the second stepped sliding sleeve through hole penetrates through the center of the right front bushing seat, two second through holes are formed in two sides of the second stepped sliding sleeve through hole, an internal thread is arranged at the outer end of each second through hole and used for installing an external thread nut, and a second spring and a second ejector rod are further arranged in each second through hole; the step of the second step-shaped sliding sleeve hole is provided with four third threaded holes which are uniformly arranged, four inner hexagonal cone end fastening screws are arranged in the third threaded holes, the cone ends of the four inner hexagonal cone end fastening screws are in contact with the end part of the first cylindrical part of the right sliding sleeve, and the right sliding sleeve can move along the axial direction by rotating the inner hexagonal cone end fastening screws by using an L-shaped small wrench, as shown in figure 11.
The right sliding sleeve is a hollow rotating body and consists of a first cylindrical part and a second cylindrical part which have the same inner diameter, and the outer diameter of the first cylindrical part is smaller than that of the second cylindrical part. The first cylindrical part penetrates into the second step-shaped sliding sleeve through hole, and three fourth threaded holes and a second ejector rod through hole are formed in the second cylindrical part. The three fourth threaded holes are used for fixing a second round table, a second step hole is formed in the second round table, the second round table is attached to the end portion of the second cylinder, and the second step holes correspond to the fourth threaded holes one to one. Three fourth threaded holes are formed in the position, close to the outer edge, of the second cylindrical part fixed on the right sliding sleeve through bolts, and the bolts are not exposed after being fixed and are immersed in the second circular table; the second cylindrical part is also provided with two second ejector rod through holes, and the outer surface of the first cylinder of the right sliding sleeve is internally connected with the second stepped sliding sleeve through hole of the right front bushing seat, as shown in figure 11.
The right conical ejector rod is provided with a longer cylindrical second ejector rod body and a second conical surface body, and the center of the second conical surface body is provided with a gauge mounting hole; the outer end of the second ejector rod body is fixed with a circular ring with the outer diameter larger than that of the second ejector rod body through a bolt and used for pulling the right conical ejector rod, and the second ejector rod body is externally connected with the inner cylindrical surface of the right sliding sleeve; the second conical surface body consists of a cylindrical surface, a conical surface, a fillet surface and a round surface, the diameter of the small end of the conical surface is d1, the diameter of the large end of the conical surface is d2, d1 is 0.5mm smaller than the maximum solid inner diameter of the inner hole of the right sleeve, d2 is 0.5mm larger than the minimum solid inner diameter of the inner hole of the right sleeve, and the conical surface is in line contact with the outer end of the right sleeve when the torsion beam is positioned; through the perforation of the second mandril on the right sliding sleeve, the outer end of the second mandril is propped against the inner side of the second conical surface body of the right conical surface mandril by the elasticity of the second spring, as shown in fig. 11.
The left rear strut and the right rear strut are identical in structure and comprise a first cylinder and a second cylinder, the lower end of the first cylinder is fixedly connected with the base, and the height of the first cylinder is unchanged, as shown in fig. 8 and 9.
The left front support rod and the right front support rod have the same structure and both comprise support rod bodies and adjustable screw rods 21 arranged on the support rod bodies, as shown in the section 8 and the figure 9.
The height of the left front strut + the distance from the left front reference target to the center of the left front bushing is equal to the height of the left rear strut + the distance from the left rear reference target to the center of the circular hole of the left hub axle support, and similarly, the height of the right front strut + the distance from the right front reference target to the center of the right front bushing is equal to the distance from the right rear strut + the right rear reference target to the center of the circular hole of the right hub axle support, so that the center of the center hole of the front bushing and the horizontal height of the circular hole of the hub axle support are the same, as shown in fig. 8 and 9.
The left front bushing pressing tool 001 is a pressing tool pressing on the inner side end face of the left front bushing, and when the torsion beam 7 is placed on the positioning device and positioning and limiting are completed, the left front bushing is fixed by the left front bushing pressing tool, as shown in fig. 7, 8, 10, 11 and 12.
The two rear hold-downs 002 are hold-downs that press on the rear end of the torsion beam 7 after the torsion beam 7 is placed on the positioning device and positioning and limiting are completed, as shown in fig. 7, 8, 9, and 12.
The two front bushing plug gauges 003 are composed of a small cylinder, a large cylinder and a handle, the outer diameter of the large cylinder of the front bushing plug gauge is equal to the maximum solid inner diameter of the inner hole of the left front bushing or the right front bushing, and the small cylinder is inserted into the gauge mounting hole of the left conical ejector rod or the right conical ejector rod and used for detecting the inner diameters and the position tolerance of the left front bushing and the right front bushing, as shown in fig. 7 to 12.
The left hub axle checking fixture is in the prior art, is provided with a plug gauge for checking the hole position of a hub axle and two dial indicators, the vertical and horizontal included angles between a hub axle flange and an XZ surface can be calculated according to the difference and the relative distance indicated by the two dial indicators, and the left hub axle checking fixture of the right hub axle checking fixture is symmetrical as shown in figures 7 and 8.
The spring seat checking tool is in the prior art and used for checking the position accuracy of the left spring seat and the right spring seat, and the shock absorber support checking tool is in the prior art and used for checking the position accuracy of the opening of the left shock absorber support and the right shock absorber support, and is shown in figure 7.
Placing the torsion beam on the left front support rod, the left rear support rod, the right front support rod and the right rear support rod, enabling the adjustable screw rod on the left front support rod to be abutted against the left front datum target and the left rear support rod to be abutted against the left rear datum target, and also enabling the adjustable screw rod on the right front support rod to be abutted against the right front datum target and the right rear support rod to be abutted against the right rear datum target; rotating the left and right adjustable screw rods to enable the center of the left front bushing to be consistent with the center of the left conical surface mandril and enable the center of the right front bushing to be consistent with the center of the right conical surface mandril; pulling the left conical surface ejector rod to enable the conical surface of the left conical surface ejector rod to be in line contact with the outer end of the left front bushing, pulling the right conical surface ejector rod to enable the conical surface of the right conical surface ejector rod to be in line contact with the outer end of the right front bushing, and if the torsion beam deforms, the left rear supporting rod or the right rear supporting rod is not in contact with the torsion beam, and a plug piece can be added to enable the left rear supporting rod or the right rear supporting; the top ends of the left front supporting rod, the left rear supporting rod, the right front supporting rod and the right rear supporting rod form a fitting plane to limit three degrees of freedom of Z-direction movement, X-axis rotation and Y-axis rotation of the torsion beam, the conical surfaces of the left conical surface ejector rod and the right conical surface ejector rod limit three degrees of freedom of X-direction movement, Y-direction movement and Z-axis rotation of the torsion beam, and limitation, detection and positioning of six degrees of freedom of the torsion beam are completed, as shown in fig. 1 and 3-12.
Rotating 4 inner hexagonal cone end set screws 18 on the left side by using an L-shaped wrench to enable 3 first round tables 121 on the left sliding sleeve 12 to be in contact with the outer end face of the left front bushing, fixing the left front bushing by using a left front bushing pressing tool, pressing the rear end of the torsion beam 7 by using two rear pressing tools, and carrying out precision inspection on the torsion beam 7 by using a front bushing plug gauge, a left hub shaft inspection tool, a right hub shaft inspection tool, a spring seat inspection tool and a shock absorber support inspection tool, as shown in FIGS. 7 to 12.
The above disclosure is only an embodiment of the present invention, and is not intended to limit itself, and any person skilled in the art can make design, modification and the like according to the essential idea of the present invention, and the present invention shall fall within the protection scope of the present invention without departing from the spirit of the present invention.
Claims (9)
1. A torsion beam gauge device is characterized by comprising a base, a left front bushing support, a right front bushing support, a left front support rod, a right front support rod, a left rear support rod and a right rear support rod, wherein the left front bushing support, the right front bushing support, the left front support rod, the right front support rod, the left rear support rod and the right rear support rod are arranged on the base;
the left front bushing support comprises a left front bushing seat, a left sliding sleeve, a left conical ejector rod, a first spring and a first ejector rod;
the left conical ejector rod consists of a first ejector rod body and a first conical surface body, and a gauge mounting hole is formed in the center of the first conical surface body;
the right front bushing support comprises a right front bushing seat, a right sliding sleeve, a right conical ejector rod, a second spring and a second ejector rod;
the right conical ejector rod consists of a second ejector rod body and a second conical surface body, and a gauge mounting hole is formed in the center of the second conical surface body;
the left rear supporting rod and the right rear supporting rod have the same structure and respectively comprise a first cylinder and a second cylinder, and the lower end of the first cylinder is fixedly connected with the base;
the left front supporting rod and the right front supporting rod have the same structure and respectively comprise a supporting rod body and an adjustable screw rod arranged on the supporting rod body;
a first stepped sliding sleeve through hole passing through the center and first through holes at two sides of the first stepped sliding sleeve through hole are formed in the left front bushing seat;
the left sliding sleeve penetrates through the first stepped sliding sleeve through hole, and the left conical surface mandril penetrates through the left sliding sleeve;
a first spring and a first ejector rod are arranged in each first through hole;
a first ejector rod through hole corresponding to the first through hole is formed in the left sliding sleeve, and the first ejector rod penetrates through the first ejector rod through hole to abut against the left conical surface ejector rod;
the center of the right front bushing seat is provided with a second step-shaped sliding sleeve through hole consisting of a large hole and a small hole, the second step-shaped sliding sleeve through hole penetrates through the center of the right front bushing seat, two second through holes are formed in two sides of the second step-shaped sliding sleeve through hole, the outer end of each second through hole is provided with an internal thread and used for installing an external thread nut, and a second spring and a second ejector rod are further arranged in each second through hole.
2. The torsion beam testing fixture device according to claim 1, wherein first threaded holes are uniformly arranged on the steps of the first stepped sliding sleeve through hole, a cone-end set screw is arranged in the first threaded hole, and the cone end of the cone-end set screw abuts against the end of the left sliding sleeve.
3. The torsion beam testing fixture device according to claim 1, wherein an internal thread is provided at an outer end of the first through hole, an external threaded nut is engaged with the internal thread, and an inner end of the external threaded nut abuts against the first spring.
4. The torsion beam gauge device according to claim 1, wherein the left sliding sleeve is composed of a first cylindrical portion and a second cylindrical portion having the same inner diameter, and an outer diameter of the first cylindrical portion is smaller than an outer diameter of the second cylindrical portion;
the first cylindrical part penetrates into the first step-shaped sliding sleeve through hole, and the second cylindrical part is provided with a second threaded hole and the first ejector rod through hole.
5. The torsion beam gauge device according to claim 4, comprising a first circular truncated cone, wherein a first stepped hole is formed in the first circular truncated cone, the first circular truncated cone is attached to the end of the second cylinder, and the first stepped hole corresponds to the second threaded hole in a one-to-one manner.
6. The torsion beam inspection positioning device according to claim 1, wherein the first ejector rod body penetrates through the left sliding sleeve, and a circular ring is arranged at the outer end of the first ejector rod body;
the outer side surface of the first conical surface body sequentially comprises a cylindrical surface, a conical surface, a fillet surface and a round surface.
7. The torsion beam gauge device according to claim 1, wherein the height of the left front strut + the distance from the left front reference target to the center of the left front bushing is equal to the height of the left rear strut + the distance from the left rear reference target to the center of the circular hole of the left hub axle support.
8. The torsion beam gauge device according to claim 1, comprising a left front bushing presser, a rear presser, a front bushing plug gauge, a left hub axle gauge, a right hub axle gauge, a spring seat gauge and a damper bracket gauge;
the left front bushing pressing tool and the rear pressing tool are arranged on the base;
the front bushing plug gauge is in inserted fit with the left conical ejector rod or the right conical ejector rod;
the left hub shaft checking fixture, the right hub shaft checking fixture and the shock absorber support checking fixture are all arranged on the base;
the spring seat check tool is matched with the spring seat.
9. The torsion beam gauge device according to claim 8, wherein the front bushing plug gauge comprises a small cylinder, a large cylinder and a handle, the outer diameter of the large cylinder is equal to the maximum solid inner diameter of the inner hole of the left front bushing or the inner hole of the right front bushing, and the small cylinder is inserted into the gauge mounting hole of the left conical ejector rod or the right conical ejector rod.
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|---|---|---|---|---|
| CN201935649U (en) * | 2010-12-21 | 2011-08-17 | 天津昊拓汽车装备技术有限公司 | Detection device of rear torsion beam welding assembly |
| CN107764151A (en) * | 2017-11-08 | 2018-03-06 | 浙江德昱汽车零部件有限公司 | Torsion beam detection utensil afterwards |
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| JPH10282130A (en) * | 1997-04-01 | 1998-10-23 | Canon Inc | Probe and scanning probe microscope using it |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201935649U (en) * | 2010-12-21 | 2011-08-17 | 天津昊拓汽车装备技术有限公司 | Detection device of rear torsion beam welding assembly |
| CN107764151A (en) * | 2017-11-08 | 2018-03-06 | 浙江德昱汽车零部件有限公司 | Torsion beam detection utensil afterwards |
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