KR102018138B1 - Inspection Apparatus for torque rod structure - Google Patents

Abstract

An inspection device of a torque rod structure according to the present invention is a torque rod assembly at the same angle formed by a pair of rods connecting a center housing and a pair of end housings, wherein in case of inspecting a product having a different swaging assembly angle between the end housing and the rod or a product having a different rotational assembly angle of a bush assembled in each housing, an inspection can be performed integrally through a single inspection port.

Description

Inspection Apparatus for Torque Rod Structure

The present invention relates to an apparatus for inspecting a torque rod structure applied to a suspension for a large commercial vehicle, and is based on a pair of rods, a center housing where the pair of rods are gathered, and an end housing disposed at the ends of the pair of rods. An inspection apparatus for a torque rod assembly capable of measuring a single engagement angle of a bush coupled to the plurality of housings on an integrated torque rod structure having a V-shaped structure and various swaging angles between the end housing and the rod at one time.

In general, a suspension system in a vehicle is a device that connects the axle and the frame, absorbs vibrations and shocks received from the road surface while driving, and improves ride comfort and safety of the vehicle. Such suspensions are classified into an integral axle suspension, an independent suspension, and an air suspension using air pressure, that is, an air suspension.

In general, tandem suspension is mainly used for commercial vehicles including trucks and buses, and generally a trunnion base fixed to a frame of a vehicle body, a trunnion shaft installed on a trunnion base, and a spring shaft rotated on a trunnion base. Possible lower installed birds, leaf springs mounted to the lower birds, radiance rods supporting the front and rear axles mounted to the leaf springs against the trunnion base or frame.

Meanwhile, the radial rod applied to the axle of the suspension of a large commercial vehicle including a truck or a bus may be a V-rod structure, which is installed at the top of each axle in front of and behind the two rear axles of the vehicle, so that the top, bottom, left and right of the axle when driving And limit the displacement of the front and rear.

The conventional radial rod is a steel structure, and is composed of three pieces such as a center body, a rod, and an end body. The center body, rod, and end body are joined by welding or hot press.

On the other hand, the inspection of the assembled V-rod products includes the assembly angle of the center bush that is pressed into the center body, the swaging angle of the end body of both ends, the assembly angle of the end bush that is pressed into the end body, and the center of the three individual bushes. Examine the distance between the two.

In the existing inspection method, the existing inspection apparatus was able to inspect only one V rod product, and there was a limit that it could not measure the distance between two centers of three bushes including the center bush and the end bush.

Therefore, conventionally, in addition to a given inspection apparatus, there was an inconvenience of having to inspect the corresponding dimension by a measurement inspection through a separate three-dimensional measuring instrument. In addition, if the swaging angle of the end body and the assembly angle of the bush are changed, the simple inspection tool must be revamped / modified or newly manufactured for each design change. .

In addition, the inspection through the three-dimensional measuring machine has a disadvantage that the inspection can not be carried out at the manufacturing site of the product due to the environmental conditions of the measurement room and the measurement time becomes longer.

As a conventional document presenting a technique related to a test of a torque rod, Korean Patent Publication No. 10-2009-0030839, Patent Registration No. 10-0208825, and Korean Utility Model Publication No. 1999-007593 can be referred to.

(Patent Document 1) KR10-2009-0030839 A

(Patent Document 2) KR10-0208825 B

(Patent Document 3) KR20-1999-007593 A

The present invention is to solve the above problems, on the torque rod assembly of the same angle formed by a pair of rods connecting the center housing and the pair of end housings, the product or each of the different swaging assembly angle between the end housing and the rod It is an object of the present invention to provide an inspection apparatus for a torque rod assembly which enables an integral inspection through a single inspection opening when inspecting a product having a different rotational assembly angle of a bush assembled in a housing of the same.

Torque rod structure inspection apparatus according to the present invention for achieving the above object is a torque rod having a pair of connecting rods, the center housing where the pair of connecting rods are collected and the end housing disposed at the ends of the pair of connecting rods The engagement angle of the bush coupled to the structure and the swaging angle between the end housing and the connecting rod can be measured at one time.

The inspection device for the torque rod assembly, the base plate 10; A center housing measurement module 20 disposed on an upper end side of the base plate 10; An end housing measuring module (30) disposed in pairs in a state spaced apart from the other end of the base plate (10); And a plurality of distance measuring modules 50 movably disposed on the end housing measuring module 30, wherein the center housing measuring module 20 includes a pair of center housings formed on the base plate 10. Support center 210, the center bush rotator 220 rotatably coupled to the center housing support 210, the center bush fixture 230 is coupled to the length adjustable on the center bush rotator 220, And a center bush rotation angle inspection unit 250 for measuring a rotation angle of the center bush rotation hole 220, wherein the pair of end housing measuring modules 30 respectively include an end housing support 310 and an end housing. An end bush rotator 320 rotatably coupled to a support connecting portion 312 formed on the support 310, an end bush fixture 330 tunably coupled to the end bush rotator 320, The end bush End bush rotation angle inspection unit 350 for measuring the rotation angle of the rotation hole 320, the horizontal moving unit 380 is disposed on the lower portion of the end housing support 310 and coupled to the support connecting portion 312 Comprising a swaging angle inspection unit 390, and calculates the rotation assembly angle of the center bush coupled to the center housing through the center bush rotation angle inspection unit 250, and through the end bush rotation angle inspection unit 350 The rotating assembly angle of the end bush coupled to the end housing is calculated, and in the state that the movement of the pair of end housing support 310 is completed through the horizontal moving unit 380, the swaging angle inspection unit 390 is the horizontal The swaging angle between the end housing and the connecting rod is measured by measuring the rotation angle of the end housing support 310 rotatably coupled on the moving part 380.

The horizontal moving part 380 may include a horizontal fixed panel 381 fixedly coupled to an upper end of the base plate 10, and a first moving panel movably coupled in a first direction on the horizontal fixed panel 381. 382, a second moving panel 383 movably coupled in a second direction on the first moving panel 382, and an end housing support 310 simultaneously protruding from the second moving panel 383. Rotational center support 384 is rotatably coupled to the bottom of the.

The horizontal moving part 380 further includes a rotation angle holder 386 spaced apart from the rotation center support 384 on the second moving panel 383, and the rotation angle holder 386. Is coupled to the zero point adjustment portion 316 formed spaced apart from the support center sphere 314 on the bottom of the end housing support 310, the coupling point of the rotation angle holder 386 and the zero point adjustment portion 316 There is a through-angle fastening of the rotation angle zero adjustment pin 360.

The horizontal moving part 380 further includes an elastic support 388 disposed on both sides of the rotation center support 384, and the elastic body 318 having a predetermined elastic modulus on the elastic support 388. Is prevented from sudden rotation during the rotational drive of the end housing support 310 in the inserted state.

As described above, the inspection apparatus for the torque rod structure according to the present invention is provided on a torque rod assembly having an angle of V-rod formed by a pair of rods connecting the center housing and the pair of end housings, and having both end housings and rods. It is possible to integrally inspect a product having a different swaging assembly angle or a product having a different rotational assembly angle of a bush assembled to a housing through a single inspection hole.

1 is a perspective view of an inspection apparatus of a torque rod structure according to an embodiment of the present invention;
2 is a plan view of the inspection device of the torque rod structure of FIG.
3 is a side view as viewed in the direction A of FIG. 1, and
4 illustrates a state in which a torque rod structure that is an inspection target is mounted on the inspection apparatus of FIG. 1.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention, and to those skilled in the art the scope of the invention. It is provided for complete information. Like numbers refer to like elements on the drawings.

In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, an inspection apparatus of a torque rod structure according to the present invention will be described with reference to FIGS. 1 to 4.

The inspection apparatus of the torque rod structure according to the present invention is spaced apart from the base plate 10, the center housing measuring module 20 disposed on one side of the upper end of the base plate 10, and the other side of the upper end of the base plate 10. The rod housing module 40 and the end housing measurement module 30 disposed in a symmetrical state between the end housing measurement module 30, the center housing measurement module 20, and the end housing measurement module 30 arranged in pairs in the A plurality of distance measuring module 50 is disposed to be movable on the.

The center housing measuring module 20 includes a pair of center housing supports 210 having a state of extending a predetermined distance upward from the base plate 10 and a center rotatably coupled to an upper side of the center housing support 210. Center bush fixture 220 in the state inserted through the top of the center bushing fixture 230, the center bush support 230, adjustable length coupled to the bush rotating hole 220, the center bush rotating hole 220 (220) It includes a center bush rotation angle inspection unit 250 for measuring the rotation angle of the center bush zero adjustment pin 240 and the center bush rotating hole 220 to limit the rotation of the.

The center bush rotation hole 220 is coupled to the center bush rotational axis rotatably coupled to the center housing support 210, both ends of the center bush coupled to the center housing of the torque rod structure is a pair of center bush rotation It is fixed by adjusting the length of the center bush fixture 230 in a state seated on the sphere 220, respectively.

The zero adjustment process of the center housing measurement module 20 is as follows.

Before seating the torque rod structure to be measured on the center housing measurement module 20, the center bush zero adjustment pin 240 is fastened to the center housing support 210 to be connected to the center bush rotation hole 220. Limit the rotation of the rotating shaft. That is, the center bush zero adjustment pin is coupled to the zero adjustment groove formed on the center bush rotation shaft to limit the relative movement between the center bush rotation hole 220 and the center housing support 210. This maintains the 'floating state', which is the non-moving state of the center bush rotating ball 220, to maintain the initial state of the center bush rotating ball 220. When the state of the center bush rotation angle inspection unit 250, which is an electronic protractor, is clicked to zero, it is set at an angle of 0 degrees before measuring the product.

In this state, the center bush zero adjustment pin 240 is removed from the center housing support 210, and the torque rod structure to be measured is seated on the center housing measurement module, and then the center is adjusted by adjusting the length of the center bush fixture 230. The torque rod structure is fixed on the bush turning hole 220. Through this, it is possible to determine the combined rotation angle of the center bush coupled to the center housing of the torque rod structure. The center bush rotation angle inspection unit 250 electronically automatically detects the changed rotation angle of the center bush rotation hole 220 based on the zero point condition.

The pair of end housing measuring modules 30 are end bush supports 320 which are rotatably coupled to the support of the end housing support 310 and the support connecting portions 312 formed at both ends of the upper surface of the end housing support 310, respectively. The end bush fixture 330 is adjustablely coupled to the end bush rotor 320, and the function of limiting the rotation of the end bush rotor 320 in the state inserted through the upper end of the support connecting portion 312. End bush zero point adjustment pin 340 and the end bush rotation angle inspection unit 350 for measuring the rotation angle of the end bush rotating hole (320).

The end bush zero adjustment pin is coupled to a zero adjustment groove formed in the end bush rotation shaft connected to the end bush rotation hole 320 to limit the relative movement between the end bush rotation hole and the support connecting portion. This maintains the 'floating state' which is the non-moving state of the end bush turn to maintain the initial state of the end bush turn. When the state of the end bush rotation angle inspection unit 350, which is an electronic protractor, is clicked to zero, it is set to an angle of 0 degrees before measuring the product.

The end housing measuring module 30 may include a horizontal moving part 380 disposed on the base plate 10, an end housing zero adjusting pin 370 disposed on the horizontal moving part 380, and an end housing support 310. Rotation angle to adjust the zero for rotation The swaging angle coupled to the support connecting portion 312 to enable the measurement of the swaging angle relative to the zero adjustment pin 360 and the axial direction connecting the end housing and the connecting rod The inspection unit 390 is included.

The swaging angle inspection unit 390 measures the swaged angle in the process of coupling the end housing and the connecting rod.

The horizontal moving part 380 is a horizontal fixed panel 381 fixedly coupled to the upper end of the base plate 10, a first moving panel 382 and a first movable panel 382 movably coupled in a first direction on the horizontal fixed panel 381. The second moving panel 383 movably coupled in the second direction on the moving panel 382, the center of rotation support 384 protruding from the second moving panel 383, and the second moving panel 383. Rotation angle holder 386 is formed spaced apart from the rotation center support 384 on the top and the elastic support 388 disposed on both sides of the rotation center support 384.

The first direction and the second direction are set in directions perpendicular to each other. For example, while making a 1st direction into an X-axis direction, a 2nd direction is set to a Y-axis direction. Various torque rod structures requiring measurement are different from the distance between the center housing and the end housing and the distance between the end housing, so that the horizontal moving unit 380 is appropriately adjusted to enable the measurement of the various torque rod structures.

The center of rotation support 384 is rotatably coupled to the support center hole 314 formed on the bottom center of the end housing support 310, and the rotation angle holder 386 is on the bottom of the end housing support 310. Coupling with the zero point adjustment portion 316 is formed spaced apart from the support center sphere 314. The coupling point of the rotation angle holder 386 and the zero point adjustment unit 316 is capable of penetrating through the rotation angle zero adjustment pin 360. Through this, in the state in which the rotation angle zero adjustment pin 360 is fastened, the zero adjustment of the end housing support 310 is made.

The elastic support 388 prevents sudden rotation during the rotation driving of the end housing support 310 in the state in which the elastic body 318 having a predetermined elastic modulus is inserted, thereby preventing breakage of the seated torque rod structure and maintaining a stable posture after rotation. To make it possible. That is, the rotation angle of the end housing support 310 is varied according to the swaging angle between the end housing and the connecting rod, and thus, when the posture variation of the end housing support 310 is changed, an abrupt rotation is prevented through the elastic body 318. do.

The rod mounting module 40 is disposed symmetrically along the end housing measuring module 30 in the center housing measuring module 20. Specifically, a plurality of lines may be arranged in a line along the form in which the V-shaped connecting rods forming the torque rod structure are arranged. In an embodiment, the rod mounting module is a rod support 410 formed in the upper direction on the top of the base plate 10 and the support roller portion 420 rotatably coupled in the horizontal direction on the rod support 410, respectively. It includes. The support roller part 420 may have a shape including a rotating rod having a metal shape rotatably coupled to the rod supporting portion 410 and a buffer member coupled to surround the rotating rod.

The plurality of distance measuring modules 50 are disposed on each of two pairs of horizontal moving parts 380. Specifically, one of the two distance measuring modules 50 disposed on one horizontal moving unit 380 is capable of sliding along the first direction, and the other is capable of sliding along the second direction. .

The process of calculating the center distance between the center housing and the end housing constituting the torque rod structure is as follows. With the center of the center housing held in a floating state, the dimensions in Cartesian coordinates of the pair of end bodies should be measured with reference to the center housing. Two distance measuring modules disposed on one horizontal moving part calculate the rectangular coordinates of the end housing seated on the end housing measuring module 30.

Torque rod structure measured by the inspection device of the present invention is a pair of connecting rods arranged symmetrically while maintaining a predetermined angle, the center housing where the pair of connecting rods based on a pair of connecting rods, a pair of connections An end housing disposed at an outer end of the rod, an arm bridge connecting the inside of the pair of connecting rods, a center bush rotatably coupled in the center housing, and an end bush rotatably coupled in the end housing.

The pair of connecting rods is a V-shaped structure that provides an integral structure in which the coupling is made in one side of the center housing, and may be a structure having an H cross section in which an intermediate frame is inserted in the center as a whole. Specifically, it may have a structure in which a pair of H are continuously bonded. This may allow sufficient response to tensile compression and torsion.

As described above, the inspection apparatus of the torque rod structure according to the present invention is a torque rod assembly having the same angle formed by the rod connecting the center housing and the end housing, and the product or the housing with different swaging assembly angles between the end housing and the rod. When inspecting a product having a different rotational assembly angle of the bush to be assembled can be integrally inspected through a single inspection port.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10: base plate
20: center housing measurement module
210: center housing support
220: center bush turn
230: center bush fixture
240: center bush zero adjustment pin
250: center bush rotation angle inspection unit
30: end housing measurement module
310: End Housing Support
312: support connection
320: End Bush Turner
330: End Bush Fixtures
340: end bush zero adjustment pin
350: end bush rotation angle inspection unit
360: rotation angle zero adjustment pin
370: end housing zero adjustment pin
380: horizontal moving part
390: swaging angle inspection unit
40: load mounting module
410: rod support
420: support roller
50: distance measurement module

Claims (4)

Coupling angle of the bush coupled to the torque rod structure having a pair of connecting rods, a center housing where the pair of connecting rods are assembled, and an end housing disposed at the end of the pair of connecting rods, and a swaging angle between the end housing and the connecting rod In the inspection device for a torque rod assembly capable of measuring at a time,
The test device for the torque rod assembly,
Base plate 10;
A center housing measurement module 20 disposed on an upper end side of the base plate 10;
An end housing measuring module (30) disposed in pairs in a state spaced apart from the other end of the base plate (10); And
And a plurality of distance measuring modules 50 movably disposed on the end housing measuring module 30.
The center housing measurement module 20,
A pair of center housing supports 210 formed on the base plate 10, a center bush rotation tool 220 rotatably coupled to the center housing support 210, and a length on the center bush rotation tool 220 A center bush fixture 230 that is adjustablely coupled, and a center bush rotation angle inspection unit 250 for measuring a rotation angle of the center bush rotation tool 220,
The pair of end housing measuring modules 30 may include an end bush support 320, rotatably coupled to an end housing support 310, a support connecting portion 312 formed at the end housing support 310, and End bush fixture 330 coupled to the end bush swivel 320 to be adjustable in length, end bush rotation angle inspection unit 350 for measuring the rotation angle of the end bush swivel 320, the end housing support A horizontal moving part 380 connected to the lower part of the 310 and a swaged angle inspection part 390 coupled to the support connecting part 312;
The rotation assembly angle of the center bush coupled to the center housing is calculated through the center bush rotation angle inspection unit 250, and the rotation assembly angle of the end bush coupled to the end housing is connected through the end bush rotation angle inspection unit 350. Is calculated,
In a state where the pair of the end housing support 310 is moved through the horizontal mover 380, the swaging angle inspector 390 is rotatably coupled to the end housing supporter 380 on the horizontal mover 380. Measuring the angle of rotation of 310 to measure the swaging angle between the end housing and the connecting rod,
Inspection device of the torque rod structure.
The method of claim 1,
The horizontal moving unit 380,
A horizontal fixed panel 381 fixedly coupled to an upper end of the base plate 10, a first moving panel 382 movably coupled to a first direction on the horizontal fixed panel 381, and the first moving panel ( A second moving panel 383 movably coupled in a second direction on the 382, a rotation protruding on the second moving panel 383 and rotatably coupled to a lower end of the end housing support 310; Comprising a central support 384,
Inspection device of the torque rod structure.
The method of claim 2,
The horizontal moving unit 380,
And a rotation angle holder 386 spaced apart from the center of rotation support 384 on the second moving panel 383.
The rotation angle holder 386 is coupled to the zero point adjustment unit 316 formed spaced apart from the support center hole 314 formed on the lower end of the end housing support 310, the rotation angle holder 386 To the coupling point of the zero point adjusting unit 316 through the rotation angle of the zero point adjusting pin 360,
Inspection device of the torque rod structure.
The method of claim 3, wherein
The horizontal moving unit 380,
Further comprising an elastic support 388 disposed on both sides of the center of rotation support 384, the end housing support in the state in which the elastic body 318 having a predetermined elastic modulus is inserted on the elastic support 388 To prevent sudden rotation during rotational drive of 310,
Inspection device of the torque rod structure.

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