CN216694853U

CN216694853U - Deformation measuring device

Info

Publication number: CN216694853U
Application number: CN202220103775.1U
Authority: CN
Inventors: 冯万东; 周金应; 王锐; 张明德; 马镇兹; 褚观耀; 姜胡; 谢守旭
Original assignee: Caac Chongqing Automobile Inspection Co ltd; China Automotive Engineering Research Institute Co Ltd
Current assignee: Caac Chongqing Automobile Inspection Co ltd; China Automotive Engineering Research Institute Co Ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-07
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the field of deformation measuring equipment of a vehicle compartment body, in particular to a deformation measuring device which comprises a support and a plurality of marking rod pieces adsorbed to a measuring target and used as marking points, wherein a vertical adjusting assembly is fixedly arranged on the support, a transverse adjusting assembly is arranged on the vertical adjusting assembly, and the vertical adjusting assembly adjusts the height of the transverse adjusting assembly in the vertical direction in a threaded manner; the horizontal adjusting assembly is provided with an aligning assembly capable of emitting a laser line and a displacement measuring assembly for measuring deformation, the laser line emitted by the aligning assembly is used for aligning the vertical direction of the marking rod piece, and the horizontal adjusting assembly adjusts the horizontal positions of the aligning assembly and the displacement measuring assembly in a threaded mode. The utility model has simple integral structure, no need of clamping operation, convenient use and rapid operation, and improves the speed of measuring the deformation.

Description

Deformation measuring device

Technical Field

The utility model relates to the field of deformation measuring equipment of a vehicle carriage body, in particular to a deformation measuring device.

Background

Since commercial vehicles are vehicles for carrying cargo, attention is paid to safety of commercial vehicles. In order to improve the safety of the commercial vehicle, it is necessary to test the various performances of the commercial vehicle, and for example, in the test of the vehicle cabin strength, it is necessary to detect the deformation amount of the vehicle cabin body.

At present, a deformation measuring device of a carriage body mainly comprises a laser scanning device, a thimble displacement measuring device and the like. However, the existing laser scanning principle is high in cost for measuring the deformation, and when the deformation is measured by using the thimble measuring principle, a larger support needs to be installed, so that the clamping is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deformation measuring device to solve the problems of high cost and difficult clamping of the existing device.

The deformation measuring device comprises a support and a plurality of marking rod pieces which are adsorbed to a measuring target and used as marking points, wherein a vertical adjusting assembly is fixedly arranged on the support, a transverse adjusting assembly is arranged on the vertical adjusting assembly, and the height of the transverse adjusting assembly in the vertical direction is adjusted by the vertical adjusting assembly in a threaded mode;

the horizontal adjusting assembly is provided with an aligning assembly capable of emitting a laser line and a displacement measuring assembly for measuring deformation, the laser line emitted by the aligning assembly is used for aligning the vertical direction of the marking rod piece, and the horizontal adjusting assembly adjusts the positions of the aligning assembly and the displacement measuring assembly in the horizontal direction in a thread mode.

The beneficial effect of this scheme is:

before the strength test is carried out, a plurality of marking rod pieces are fixedly adsorbed to a measuring target, such as a stand column and a wall of a carriage, so that a plurality of marking points are formed by the plurality of marking rod pieces; the height of the alignment assembly can be adjusted in the height direction by the vertical adjustment assembly; the horizontal position of the alignment assembly is adjusted through the transverse adjusting assembly, so that a laser line emitted by the alignment assembly is respectively superposed with a front mark point, a rear mark point, a left mark point and a right mark point on an upright post of the carriage, and the laser line emitted by the alignment assembly is parallel to a detected surface of the carriage; the laser line of the alignment assembly is moved to a position to be tested of a measurement target through the transverse adjusting assembly, the laser line is respectively overlapped with the marking rod pieces at each marking point one by one in the vertical direction, and meanwhile, the value displayed on the displacement measuring assembly is recorded as the initial displacement value of measurement; after the strength test is carried out, the laser lines of the alignment assemblies are respectively overlapped with the vertical directions of the marking rod pieces at the plurality of marking points on the carriage wall one by one through the transverse adjusting assembly, the numerical value displayed on the displacement measuring assembly is used as the measuring numerical value of each marking point, and the initial numerical value is subtracted from the measuring numerical value to obtain the deformation.

This scheme is carrying out the deflection measurement in-process, need measure the deflection of a plurality of mark points, and the number of times of adjusting the alignment subassembly is more, and regulation at every turn only needs to adjust horizontal adjusting part immediately, and overall structure is simple, need not the clamping operation, and convenient to use operates rapidly, improves the speed of deflection measurement.

Further, perpendicular regulating part includes perpendicular guide bracket, perpendicular lead screw and perpendicular slider, perpendicular guide bracket is the spill, the tip of perpendicular guide bracket notch arbitrary side sets firmly on the support, perpendicular lead screw rotates to be connected in the notch on perpendicular guide bracket, perpendicular slider threaded connection is on perpendicular lead screw, perpendicular slider sliding fit is on perpendicular guide bracket.

The beneficial effects are that: let perpendicular slider and perpendicular guide holder sliding fit, can let perpendicular slider carry out the ascending removal of vertical direction when revolving the perpendicular lead screw, simple structure, the volume of adjusting at every turn is less, and the regulation of high position is accurate.

Further, horizontal adjusting part includes horizontal guide holder, horizontal lead screw and horizontal slider, horizontal guide holder is the spill, the notch opening direction of horizontal guide holder is on a parallel with ground, horizontal guide holder sets firmly on perpendicular slider, horizontal lead screw rotates the notch of connecting on horizontal guide holder in, horizontal slider threaded connection is on horizontal lead screw, horizontal slider sliding fit is on horizontal guide holder, it is located horizontal slider to aim at the subassembly.

The beneficial effects are that: horizontal position can be convenient for adjust by the setting of horizontal adjusting part, through will aim at the subassembly setting on horizontal adjusting part, through simple operation of twisting soon, be convenient for carry out position control many times through horizontal adjusting part.

Further, perpendicular lead screw stretches out perpendicular guide holder towards the tip of top, the tip that perpendicular lead screw stretches out perpendicular guide holder has set firmly perpendicular hand wheel, horizontal lead screw stretches out horizontal guide holder towards the tip of one side, the tip that horizontal lead screw stretches out transversely to lead to has set firmly horizontal hand wheel.

The beneficial effects are that: the hand wheels are arranged on the vertical screw rod and the transverse screw rod, so that the screwing operation and use of position adjustment are facilitated.

Further, the alignment subassembly is including being located a word line laser on the horizontal slider, the displacement measurement subassembly is equipped with the power of independent power supply, the displacement measurement subassembly includes scale grating, grating reading head and digital display screen, the scale grating sets firmly on horizontal saddle, the scale grating is located horizontal direction towards the lateral wall of support one side, the grating reading head sets firmly on horizontal slider, grating reading head and scale grating are located same horizontal plane, grating reading head is parallel to each other with the scale grating, digital display screen is located the back of the body lateral wall of horizontal saddle notch.

The beneficial effects are that: the setting positions of the alignment assembly and each part of the displacement measurement assembly can be used for quickly measuring the deformation after the position of the alignment assembly is adjusted.

Further, the mark rod piece comprises a vertical rod and a horizontal rod, a universal joint is connected between the vertical rod and the horizontal rod, a counterweight head is integrally formed at the free end of the vertical rod, the counterweight head is in an ellipsoidal shape, and an adsorption piece is arranged at the free end of the horizontal rod.

The beneficial effects are that: the structure of mark member to and the absorption piece that sets up can let mark member arrange the position that awaits measuring fast on, and the setting of universal joint can guarantee that perpendicular pole keeps the plumb state under self action of gravity all the time.

Furthermore, the bottom of the support is in threaded connection with a plurality of leveling bolts, the leveling bolts are evenly distributed on the bottom of the support, and column heads are fixedly arranged at the end parts of the leveling bolts.

The beneficial effects are that: the leveling bolt at the bottom of the support can be used for additionally adjusting the horizontal state of the whole device.

Drawings

FIG. 1 is a front view of a deformation measuring device according to a first embodiment of the present invention;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is a front view of a marking rod member in an embodiment of the deformation measuring device of the present invention.

Detailed Description

The following is a more detailed description of the present invention by way of specific embodiments.

Reference numerals in the drawings of the specification include: the device comprises a support 1, a vertical guide seat 2, a transverse guide seat 3, a vertical screw rod 4, a vertical hand wheel 5, a transverse screw rod 6, a transverse hand wheel 7, a transverse sliding block 8, a grating reading head 9, a scale grating 10, a linear laser 11, a power supply 12, a digital display screen 13, a vertical sliding block 14, a vertical rod 15, a horizontal rod 16, an adsorption piece 17 and a universal joint 18.

Example one

The deformation measuring device is shown in fig. 1, 2 and 3: the device comprises a support 1 and a plurality of marking rod pieces which are arranged and adsorbed on a measuring target to serve as marking points, wherein the support 1 is of a frame structure formed by welding a top plate, a middle layer plate and four support legs, the bottom of the support 1 is in threaded connection with a plurality of leveling bolts, the leveling bolts are uniformly distributed on the bottom of the support 1 and are positioned on the support legs, the leveling bolts are positioned at four corners of the support 1, and column heads are welded on the end parts of the leveling bolts. The marker rod piece includes vertical pole 15 and horizon bar 16, be connected through universal joint 18 between vertical pole 15 and the horizon bar 16, universal joint 18 is selected according to the demand and is satisfied operation requirement's current universal joint 18 structure, vertical pole 15's free end integrated into one piece has the counter weight head, the counter weight head becomes the ellipsoid form, it has adsorption part 17 to bond on horizontal pole 16's the free end, adsorption part 17 can be inhaled with magnet magnetism or the adhesive joint is gone on with sticky mode, vertical pole 15 is less than the adsorption affinity when magnet adsorbs with the weight of counter weight head, in order to avoid droing.

The vertical adjusting component is fixedly arranged on the support 1, the vertical adjusting component adjusts the height of the transverse adjusting component in the vertical direction in a threaded manner, the vertical adjusting component comprises a vertical guide seat 2, a vertical screw rod 4 and a vertical sliding block 14, the vertical guide seat 2 is concave, the opening direction of a notch is parallel to the ground, the vertical screw rod 4 and the vertical sliding block 14 are positioned in the notch of the vertical guide seat 2, the back side wall of the inner bottom of the notch of the vertical guide seat 2 is vertical to the surface of the support 1, the end side wall of the vertical guide seat 2 is fixed on the support 1 through a screw, the vertical screw rod 4 is rotatably connected on the vertical guide seat 2 through a rotating bearing, the length of the vertical screw rod 4 is larger than that of the notch of the vertical guide seat 2, the vertical sliding block 14 is in threaded connection on the vertical screw rod 4, the vertical sliding block 14 is in fit on the vertical guide seat 2 and moves in the vertical direction, and the vertical sliding fit of the vertical sliding block 14 and the vertical guide seat 2 is in a shape fit, for example, a U-shaped convex strip is integrally formed on the side wall of the vertical sliding block 14 facing the inner bottom of the notch, a guide strip positioned in the U-shaped convex strip is welded on the vertical guide seat 2, the end part of the vertical lead screw 4 facing the upper part extends out of the vertical guide seat 2, a vertical hand wheel 5 is installed on the end part of the vertical lead screw 4 extending out of the vertical guide seat 2 through a bolt, and the vertical hand wheel 5 is in a disc shape.

The vertical adjusting component is provided with a horizontal adjusting component, the horizontal adjusting component comprises a horizontal guide seat 3, a horizontal screw rod 6 and a horizontal sliding block 8, the horizontal guide seat 3 is concave, the opening direction of a notch of the horizontal guide seat 3 is parallel to the ground, the horizontal guide seat 3 and the vertical guide seat 2 form a cross fork shape, the horizontal screw rod 6 and the horizontal sliding block 8 are positioned in the notch of the horizontal guide seat 3, the horizontal guide seat 3 is fixed on a vertical sliding block 14 through screws, the horizontal screw rod 6 is rotatably connected on the horizontal guide seat 3 through a rotating bearing, the horizontal sliding block 8 is in threaded connection on the horizontal screw rod 6, the length of the horizontal screw rod 6 is larger than that of the notch of the horizontal guide seat 3, the end part of the horizontal screw rod 6 facing one side extends out of the horizontal guide seat 3, for example, the end part of the right side of the horizontal screw rod 6 extends out of the horizontal guide seat 3, the end part of the horizontal screw rod 6 extending out of the horizontal guide seat 3 is provided with a horizontal hand wheel 7 through bolts, the transverse hand wheel 7 is in a disc shape, the transverse sliding block 8 is in sliding fit with the transverse guide seat 3 and moves in the length direction of the inner bottom of the notch of the transverse guide seat 3, the transverse sliding block 8 is in sliding fit with the transverse guide seat 3 in a shape fit mode, and the transverse sliding block 8 and the transverse guide seat are arranged according to the arrangement mode of the vertical sliding block 14 and the vertical guide seat 2.

The transverse adjusting assembly is provided with an aligning assembly capable of emitting a laser line and a displacement measuring assembly for measuring deformation, the laser line emitted by the aligning assembly is used for aligning the vertical direction of the marking rod piece, and the transverse adjusting assembly adjusts the positions of the aligning assembly and the displacement measuring assembly in the horizontal direction in a thread mode. The alignment assembly is located on the lateral slide 8. The alignment assembly comprises a linear laser 11 arranged on the transverse sliding block 8, the linear laser 11 can be an existing product, such as a YQ80 product, the displacement measurement assembly is electrically connected with an independently powered power supply 12, the power supply 12 can be an existing storage battery, the power supply 12 is arranged on the middle layer plate, the displacement measurement assembly comprises a scale grating 10, a grating reading head 9 and a digital display screen 13, the scale grating 10 is fixedly arranged on the transverse guide seat 3, the scale grating 10 is arranged on the side wall of the transverse guide seat 3 facing the support seat 1, namely the scale grating 10 is arranged on the transverse guide seat 3, the scale grating 10 can be an existing product, such as an LC 493F product, the grating reading head 9 can be a product matched with the scale grating 10, the digital display screen 13 selects the existing product according to the grating reading head 9, the grating reading head 9 is arranged on the transverse sliding block 8 through a screw or a bonding fixing mode, grating reading head 9 and scale grating 10 are located same horizontal plane, grating reading head 9 and scale grating 10 are parallel to each other, namely grating reading head 9 is located in the place ahead of scale grating 10 towards carriage one side, digital display screen 13 is located the back of the body lateral wall of horizontal guide 3 notch, obtain the displacement volume that corresponds and show on digital display screen 13 with the relative displacement of grating reading head 9 and scale grating 10, grating reading head 9 is prior art with the reading principle of scale grating 10 mutually supporting, no longer give unnecessary details here.

The specific implementation process is as follows:

before the strength test is carried out, a plurality of marking rod pieces are fixedly adsorbed to a measuring target, the vertical rod 15 is kept perpendicular to the ground, such as a stand column and a wall of a carriage, a plurality of marking points are formed by the plurality of marking rod pieces, and the number of the marking points is set according to the area of a carriage plate for carrying out the strength test.

Placing the support 1 in front of the surface to be measured of the carriage plate, and adjusting the leveling bolt to enable the support 1 to be in a horizontal state; the vertical screw rod 4 is screwed through the vertical hand wheel 5, so that the vertical slide block 14 moves in the vertical direction, and the alignment assembly is positioned at a proper height. The transverse screw rod 6 is screwed by the transverse hand wheel 7, the transverse sliding block 8 moves in the horizontal direction and simultaneously moves and levels the support 1, so that laser lines emitted by the linear laser 11 can be respectively superposed with the vertical rods 15 of the front marking point, the rear marking point, the left marking point and the right marking point on the carriage upright column, for example, when the left side wall of the carriage is measured, the front upright post and the rear upright post of the left side wall are taken as references, so that the laser lines can be respectively superposed with the vertical rods 15 on the front upright post and the rear upright post, when the front wall and the rear wall of the carriage are measured, the vertical columns on the left side and the right side of the front wall and the rear wall are taken as references, the laser lines can be respectively superposed with the vertical rods 15 on the left vertical column and the right vertical column, the front, the rear, the left and the right in the embodiment are marked according to the front, the rear, the left and the right of the carriage of the vehicle, for example, front means the side near the cab so that the laser line emitted by the alignment assembly is parallel to the measured surface of the cab. At this time, the installation and debugging of the entire apparatus are completed. Pressing the "zero" key on the digital display 13 causes the digital display to display zero.

The horizontal screw rod 6 is screwed by the horizontal hand wheel 7 to adjust the position of the alignment assembly, so that laser lines emitted by the linear laser 11 are respectively overlapped with the vertical rods 15 of the marking rod pieces at all marking points on the carriage wall one by one, meanwhile, numerical values displayed by the digital display screen 13 of the displacement measurement assembly are recorded as measured initial displacement numerical values, the support 1 is not moved, and the laser lines emitted by the linear laser 11 are kept parallel to the carriage wall.

After the strength test is carried out, a transverse screw rod 6 is screwed through a transverse hand wheel 7, the position of the alignment assembly is adjusted, laser lines emitted by a linear laser 11 are respectively overlapped with vertical rods 15 of marking rod pieces at each marking point on the carriage wall one by one, the numerical value of a scale grating 10 read by a grating reading head 9 is displayed on a digital display screen 13, the numerical value displayed by the digital display screen 13 of the displacement measurement assembly is recorded as a measurement numerical value of deformation measurement, and the deformation is obtained by subtracting an initial numerical value from the measurement numerical value.

In the deformation measuring process, the deformation of the plurality of mark points is required to be measured, the number of times of adjusting the alignment assembly is large, the transverse adjusting assembly is only required to be adjusted at every time, the whole structure is simple, the clamping operation is not required, the use is convenient, the operation is rapid, and the deformation measuring speed is increased.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A deformation measuring device is characterized in that: the device comprises a support and a plurality of marking rod pieces which are adsorbed to a measuring target and used as marking points, wherein a vertical adjusting assembly is fixedly arranged on the support, a transverse adjusting assembly is arranged on the vertical adjusting assembly, and the height of the transverse adjusting assembly in the vertical direction is adjusted by the vertical adjusting assembly in a threaded mode;

2. The deformation measuring apparatus according to claim 1, characterized in that: the vertical adjusting assembly comprises a vertical guide seat, a vertical screw rod and a vertical sliding block, the vertical guide seat is concave, the end part of the vertical guide seat is fixedly arranged on the support, the opening direction of a notch is parallel to the ground, the vertical screw rod is rotatably connected in the notch on the vertical guide seat, the vertical sliding block is in threaded connection with the vertical screw rod, and the vertical sliding block is in sliding fit with the vertical guide seat.

3. The deformation measuring apparatus according to claim 2, characterized in that: the transverse adjusting assembly comprises a transverse guide seat, a transverse screw rod and a transverse sliding block, the transverse guide seat is concave, the opening direction of a notch of the transverse guide seat is parallel to the ground, the transverse guide seat is fixedly arranged on the vertical sliding block, the transverse screw rod is rotatably connected in the notch on the transverse guide seat, the transverse sliding block is in threaded connection with the transverse screw rod, the transverse sliding block is in sliding fit with the transverse guide seat, and the aligning assembly is located on the transverse sliding block.

4. The deformation measuring apparatus according to claim 3, wherein: perpendicular lead screw stretches out perpendicular guide holder towards the tip of top, the tip that perpendicular lead screw stretches out perpendicular guide holder has set firmly perpendicular hand wheel, horizontal lead screw stretches out horizontal guide holder towards the tip of one side, the tip that horizontal lead screw stretches out horizontal leading has set firmly horizontal hand wheel.

5. The deformation measuring apparatus according to claim 4, wherein: the alignment assembly is including being located a word line laser on horizontal slider, the displacement measurement subassembly is equipped with the power of independent power supply, the displacement measurement subassembly includes scale grating, grating reading head and digital display screen, the scale grating sets firmly on horizontal guide seat, the scale grating is located horizontal direction towards the lateral wall of support one side, the grating reading head sets firmly on horizontal slider, grating reading head and scale grating are located same horizontal plane, grating reading head is parallel to each other with the scale grating, the digital display screen is located the back of the body lateral wall of horizontal guide seat notch.

6. The deformation measuring apparatus according to claim 1, characterized in that: the marking rod piece comprises a vertical rod and a horizontal rod, a universal joint is connected between the vertical rod and the horizontal rod, a counterweight head is integrally formed at the free end of the vertical rod, the counterweight head is in an ellipsoidal shape, and an adsorption piece is arranged at the free end of the horizontal rod.

7. The deformation measuring apparatus according to claim 1, characterized in that: the bottom of the support is in threaded connection with a plurality of leveling bolts, the leveling bolts are evenly distributed on the bottom of the support, and column heads are fixedly arranged at the end parts of the leveling bolts.