CN212275247U

CN212275247U - Be used for quick positioner of car trunk impact test

Info

Publication number: CN212275247U
Application number: CN202020489136.4U
Authority: CN
Inventors: 武永强; 刘志新; 史永万; 李向荣; 蒋熊力忍; 马伟杰; 顾海明
Original assignee: China Automotive Technology and Research Center Co Ltd; CATARC Automotive Test Center Tianjin Co Ltd
Current assignee: China Automotive Technology and Research Center Co Ltd; CATARC Automotive Test Center Tianjin Co Ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-01-01
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a quick positioning device for an impact test of an automobile trunk, which comprises a positioning clamping seat, a slide block, a support rod which can be connected with a laser head and a connecting structure which can be connected with a tested trolley; the upper end face of the positioning clamping seat is provided with a closed groove, the sliding block is arranged in the closed groove in a sliding mode, the bottom end of the supporting rod is connected with the sliding block, the connecting structure is arranged on the positioning clamping seat, and when the connecting structure is fixedly connected with the tested trolley, the closed groove is parallel to the vertical plane of the longitudinal center of the tested trolley body. A be used for car trunk shock test quick positioner, solved seat collision test in-process, current R point position confirmation method causes the good seat R point position of automobile body both sides location easily not on the same horizontal vertical plane of automobile body, and then leads to the unsafe technical problem of positioning result.

Description

Be used for quick positioner of car trunk impact test

Technical Field

The utility model belongs to the technical field of car bump test, especially, relate to a be used for car trunk impact test quick positioner.

Background

For China with more people and vehicles and complex traffic road conditions, the riding rate of the rear row of the automobile is very high, and articles are habitually placed in a trunk at the rear part of the automobile. In the event of a collision, the articles in the luggage compartment will move forward rapidly due to inertia, causing a large impact force on the rear seat back and the headrest thereof, and further causing injury to the rear passenger. In order to improve the riding safety of passengers at the rear row of the automobile, relevant laws and regulations of automobile collision safety are continuously perfected. In GB15083-2019 "requirements and test methods for strength of car seats, seat fixtures and headrests", an impact test of a car trunk is used as a way to check whether the back-row seat backs and headrests have sufficient strength to protect the back-row occupants during a car crash. Referring to the relevant technical requirements in the standard, the rear row of seat backs cannot exceed the transverse vertical plane 100mm in front of the R point of the seat forwards during collision, and the headrest cannot exceed the transverse vertical plane 150mm in front of the R point of the seat forwards; therefore, it is important to accurately mark the critical limit position before testing, and the technical requirement diagram is shown in fig. 3.

The current practice for determining the critical limit is: firstly, placing a three-dimensional H-point measuring device on a back row seat, and adjusting the three-dimensional H-point measuring device to a correct state according to the design angle of a seat backrest; thereby determining the R point of the good seat. Then, placing a laser source on the ground on the side face of the tested vehicle body, aligning a vertical line beam of the laser to a seat R point, and observing whether the positions of the line beams of the laser falling on the longitudinal beams on the two sides of the vehicle body are symmetrical about the vertical plane of the longitudinal center of the vehicle body; if the two sides are not symmetrical, the position and the angle of the laser source need to be adjusted until the two sides are symmetrical; that is, the position where the laser vertical line beam falls on the side members on both sides of the vehicle body is finally adjusted to coincide with the vehicle body transverse vertical plane passing through the point R of the seat. And finally, taking the laser vertical line beam on the vehicle body longitudinal beam as a reference, measuring the positions 100mm and 150mm away from the transverse vertical plane of the R point of the seat forwards on the vehicle body longitudinal beam along the horizontal direction by using a straight steel ruler, and drawing a vertical line on the longitudinal beam by using a color pen to mark. The method is used for determining the maximum deformation limit of the rear seat backrest and the headrest thereof in the test technical requirements.

The prior art method needs to determine the transverse vertical plane of the R point by adjusting the position and the angle of the laser source in a trial mode for multiple times, and then measures distances of 100mm and 150mm by using the straight steel ruler, which are judged by human subjectivity. This is because the laser source used for positioning is placed on the ground in isolation, and it is independent of the test car body. In the positioning process, an included angle α is often formed between a vertical line beam of laser and a transverse vertical plane of the vehicle body where the R point is located, that is, the R points of the seats positioned on the two sides of the vehicle body are not located on the same transverse vertical plane of the vehicle body, the positioning result is inaccurate, and the schematic plan view is shown in fig. 2. That is, the prior art method is difficult to keep the laser vertical beam parallel to the transverse vertical plane of the vehicle body, is more difficult to keep the laser vertical beam parallel to move, and has larger error when a steel ruler is used for measuring the distances of 100mm and 150mm artificially. Meanwhile, the existing method for determining the critical limit position generally needs to position the left side and the right side of the vehicle body once respectively, and the positioning results of the two sides need to be overlapped; with the existing method, the repeated operation for two times is more complicated and has lower accuracy. Therefore, a simple, convenient and accurate quick positioning device for the automobile trunk impact test is urgently needed.

Disclosure of Invention

In view of this, the utility model aims to provide a quick positioning device for car trunk impact test, which solves the technical problem that the existing R point position confirmation method easily causes the R point positions of the seats well positioned at the two sides of the car body not to be on the same transverse vertical plane of the car body, thereby resulting in inaccurate positioning result in the seat collision test process;

further solved in the seat collision test process, prior art method is difficult to accomplish laser beam and keeps parallel translation, adopts artificial with the straight ruler of steel to measure 100mm and 150mm distance, and the error can bigger technical problem.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a quick positioning device for an impact test of an automobile trunk comprises a positioning clamping seat, a sliding block, a supporting rod capable of being connected with a laser head and a connecting structure capable of being connected with a tested trolley;

the upper end face of the positioning clamping seat is provided with a closed groove, the sliding block is arranged in the closed groove in a sliding mode, the bottom end of the supporting rod is connected with the sliding block, the connecting structure is arranged on the positioning clamping seat, when the connecting structure is fixedly connected with the trolley to be tested, the closed groove is parallel to the vertical plane of the longitudinal center of the trolley body to be tested, and the length of the closed groove is larger than or equal to the sum of the maximum testing sliding distance of the sliding block and the length of the sliding block.

Furthermore, the connecting structure comprises a locking device and two clamping plates, the two clamping plates are fixedly connected with the positioning clamping seat, and the locking device is arranged on one clamping plate.

Furthermore, the supporting rod is hinged to the sliding block, an open slot is formed in the positioning clamping seat and communicated with the closed slot, and the supporting rod can be accommodated in the open slot.

Furthermore, the positioning clamping seat comprises a first straight rod and a second straight rod, the second straight rod is arranged in the middle of the first straight rod, the second straight rod is perpendicular to the first straight rod, the closed groove is formed in the first straight rod, the open groove is formed in the second straight rod, and the two clamping plates are arranged at the end portion, far away from the first straight rod, of the second straight rod.

Further, positioner still includes screw tap rocker mechanism, screw tap rocker mechanism includes screw tap guide arm and rocker handle, the rocker handle sets up screw tap guide arm one end tip, the screw tap guide arm runs through the closed groove, the screw tap guide arm with slider threaded connection, when rocking during the rocker handle, the slider can slide in the closed groove.

Further, the locking device comprises two clamping bolts, and the two clamping bolts are arranged on one clamping plate.

Furthermore, the locking device further comprises a pressing plate, the pressing plate is arranged at the bottom of the locking bolt, and each locking bolt is rotatably connected with the pressing plate.

Furthermore, a sliding rail is arranged in the closed groove, and the sliding block is connected with the sliding rail in a sliding manner.

Furthermore, a graduated scale is arranged on the closed groove, and the length of the graduated scale is equal to that of the closed groove.

Further, positioner still includes the laser head, the laser head with bracing piece top threaded connection works as when the laser head is opened, the laser pencil of laser head with the second straight-bar is parallel.

Compared with the prior art, a be used for car trunk impact test quick positioner have following advantage:

a be used for car trunk shock test quick positioner, simple installation, easy operation, the accuracy is high. In the using process, the positioning device is directly inserted into the side edge of the trolley, and then the clamping bolt is fastened to firmly fix the positioning clamping seat; the closed groove of the positioning device is parallel to the vertical plane of the longitudinal center of the tested trolley body, and the laser beam of the laser head is parallel to the second straight rod of the positioning clamping seat, so that the laser vertical beam is always parallel to the transverse vertical plane of the trolley body; and the positioning device can achieve the aim only by positioning the critical limit position once at any side of the vehicle body. Meanwhile, the sliding block can horizontally move along the guide rail by shaking the screw tap guide rod, the positions of the transverse vertical surfaces where the front 100mm and the front 150mm of the R point of the seat are located are quickly and accurately positioned, and human errors caused by indirect measurement through a straight steel ruler are avoided.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a quick positioning device for an impact test of an automobile trunk according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of a quick positioning device for an impact test of an automobile trunk according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating technical requirements of a fast positioning device for an impact test of a trunk of an automobile according to an embodiment of the present invention in an implementation process;

FIG. 4 is a schematic top view of a prior art laser head positioning process;

fig. 5 is a schematic top view illustrating a positioning process of the quick positioning device for the car trunk impact test according to an embodiment of the present invention.

Description of reference numerals:

1. a laser head; 2. a rocker handle; 3. a screw tap guide rod; 4. a slide rail; 5. clamping the bolt; 6. pressing a plate; 7. positioning the card holder; 8. a slider; 9. a graduated scale; 10. a support bar; 11-a slide table; point A1-R transverse vertical plane; 100mm of transverse vertical plane before point A2-R; 150mm of transverse vertical plane in front of point A3-R; a4-transverse vertical plane passing through point R; b-body in white; a C-R point; d-the luggage block.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A quick positioning device for an impact test of an automobile trunk is shown in figure 1 and comprises a positioning clamping seat 7, a sliding block 8, a supporting rod 10 which can be connected with a laser head 1 and a connecting structure which can be connected with a tested trolley;

the upper end face of the positioning clamping seat 7 is provided with a closed groove, the slider 8 is arranged in the closed groove in a sliding manner, the bottom end of the support rod 10 is connected with the slider 8, the connecting structure is arranged on the positioning clamping seat 7, when the connecting structure is fixedly connected with the tested trolley, the closed groove is parallel to the vertical plane of the longitudinal center of the body of the tested trolley, the length of the closed groove is larger than or equal to the sum of the maximum test sliding distance of the slider and the length of the slider, in the embodiment, the maximum test sliding distance is 150mm, the length of the closed groove is 300mm, the closed groove is internally provided with a sliding rail 4, the slider 8 is in sliding connection with the sliding rail 4, the closed groove is provided with a graduated scale 9, and the graduated scale.

In this embodiment, connection structure includes locking device and two splint, two splint and 7 rigid couplings of location cassette, locking device sets up on a splint, locking device includes two clamp bolt 5, two clamp bolt 5 are arranged and are set up on a splint, clamp plate 6 sets up in the clamp bolt bottom, each lock bolt all rotates with clamp plate 6 to be connected, clearance disect insertion to the platform truck side edge between two splint in the use, then fastening clamp bolt 5 can fix firmly location cassette 7.

The supporting rod 10 is hinged to the sliding block 8, an open slot is formed in the positioning clamping seat 7 and communicated with the closed slot, and the supporting rod 10 can be accommodated in the open slot.

The positioning clamping seat 7 comprises a first straight rod and a second straight rod, the second straight rod is arranged in the middle of the first straight rod, the second straight rod is perpendicular to the first straight rod, a closed groove is formed in the first straight rod, an open groove is formed in the second straight rod, and two clamping plates are arranged at the end portion, far away from the first straight rod, of the second straight rod; and the positioning device can achieve the aim only by positioning the critical limit position once at any side of the vehicle body.

The positioning device further comprises a screw tap rocker mechanism, the screw tap rocker mechanism comprises a screw tap guide rod 3 and a rocker handle 2, the rocker handle 2 is arranged at the end part of one end of the screw tap guide rod 3, the screw tap guide rod 3 penetrates through the closed groove, the screw tap guide rod 3 is in threaded connection with the sliding block 8, and when the rocker handle 2 is shaken, the sliding block 8 can slide in the closed groove.

Working mode of the example

The screw tap guide rod 3 is shaken, the sliding block 8 is moved horizontally, the target position can be quickly and accurately found, and the overhead schematic view of the actual positioning of the trunk impact test is shown in fig. 5.

Firstly, inserting a gap between two clamping plates into the edge of the side face of the trolley, and firmly clamping a positioning clamping seat 7 and a pressure plate 6 to clamp a table top through a clamping bolt 5 to ensure the stability of the positioning device; opening a laser switch, and moving the laser vertical linear speed of the laser head 1 to the position of the transverse vertical plane where the R point of the seat is located by shaking the screw tap guide rod 3; then, referring to a graduated scale 7 with a closed groove, rocking a rocker handle 2 of a screw tap guide rod 3 to enable a sliding block 8 to move forwards 100mm along the longitudinal direction of a vehicle body, namely a transverse vertical plane in which a position 100mm in front of a seat R point is located, marking is conducted by marking the laser beam position on the longitudinal beam of the vehicle body with a color pen, then, continuously rocking the rocker handle 2 to enable the sliding block 8 to move forwards 50mm along the longitudinal direction, namely a transverse vertical plane in which a position 150mm in front of the seat R point is located, and marking is also conducted by marking with the color pen; so far, the critical limit positioning of the standard technical requirements is completed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be used for quick positioner of car trunk impact test which characterized in that: the laser head testing device comprises a positioning clamping seat (7), a sliding block (8), a supporting rod (10) capable of being connected with a laser head (1) and a connecting structure capable of being connected with a tested trolley;

the test bench is characterized in that the upper end face of the positioning clamping seat (7) is provided with a closed groove, the sliding block (8) is arranged in the closed groove in a sliding mode, the bottom end of the supporting rod (10) is connected with the sliding block (8), the connecting structure is arranged on the positioning clamping seat (7), when the connecting structure is fixedly connected with a tested bench, the closed groove is parallel to the vertical plane of the longitudinal center of the body of the tested bench, and the length of the closed groove is larger than or equal to the sum of the maximum test sliding distance of the sliding block (8) and the length of the sliding block (8).

2. The quick positioning device for the automobile trunk impact test is characterized in that: the connecting structure comprises a locking device and two clamping plates, the two clamping plates are fixedly connected with the positioning clamping seat (7), and the locking device is arranged on one clamping plate.

3. The quick positioning device for the automobile trunk impact test is characterized in that: the supporting rod (10) is hinged to the sliding block (8), an open groove is formed in the positioning clamping seat (7) and communicated with the closed groove, and the supporting rod (10) can be accommodated in the open groove.

4. The quick positioning device for the automobile trunk impact test is characterized in that: the positioning clamping seat (7) comprises a first straight rod and a second straight rod, the second straight rod is arranged in the middle of the first straight rod, the second straight rod is perpendicular to the first straight rod, the closed groove is formed in the first straight rod, the open groove is formed in the second straight rod, and the two clamping plates are arranged at the end portion, far away from the first straight rod, of the second straight rod.

5. The quick positioning device for the automobile trunk impact test according to any one of claims 2 to 4, characterized in that: the positioning device further comprises a screw tap rocker mechanism, the screw tap rocker mechanism comprises a screw tap guide rod (3) and a rocker handle (2), the rocker handle (2) is arranged at one end of the screw tap guide rod (3), the screw tap guide rod (3) penetrates through the closed groove, the screw tap guide rod (3) is in threaded connection with the sliding block (8), and when the rocker handle (2) is shaken, the sliding block (8) can slide in the closed groove.

6. The quick positioning device for the automobile trunk impact test is characterized in that: the locking device comprises two clamping bolts (5), and the two clamping bolts (5) are arranged on one clamping plate.

7. The quick positioning device for the automobile trunk impact test is characterized in that: the locking device further comprises a pressing plate (6), the pressing plate (6) is arranged at the bottom of the clamping bolts, and each clamping bolt is rotatably connected with the pressing plate (6).

8. The quick positioning device for the automobile trunk impact test according to claim 6 or 7, characterized in that: and a sliding rail (4) is arranged in the closed groove, and the sliding block (8) is in sliding connection with the sliding rail (4).

9. The quick positioning device for the automobile trunk impact test according to claim 8, characterized in that: and a graduated scale (9) is arranged on the closed groove, and the length of the graduated scale (9) is equal to that of the closed groove.

10. The quick positioning device for the automobile trunk impact test is characterized in that: positioner still includes laser head (1), laser head (1) with bracing piece (10) top threaded connection works as when laser head (1) is opened, the laser line bundle of laser head (1) with the second straight-bar is parallel.