Pedestrian protection test lineation device and lineation method thereof

Abstract

The invention discloses a marking device and method for a pedestrian protection test, and the device comprises a fixed part, the first end of the fixed part is used for being connected with an emitter of automobile impact equipment, and the emitter of the automobile impact equipment can move in a reciprocating manner in the first direction; the first end of the adapter piece is connected with the second end of the fixing piece, the second end of the adapter piece extends in the first direction or the second direction, and a preset included angle is formed between the second direction and the first direction; the pivoting seat is pivoted to the second end of the adapter; the adjusting piece is connected to the pivoting seat, and an adjusting part is arranged in the adjusting piece; and the identification piece is installed in the adjusting part and can move in a reciprocating mode in the preset direction. Compared with the prior art, the marking device for the pedestrian protection test is arranged on the emitter of the automobile impact equipment, mechanical control of the automobile impact equipment is utilized, and the marking precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile simulation collision test, in particular to a pedestrian protection test marking device and a marking method thereof. Background Art

[0002] Pedestrian protection test area marking is an important part of the vehicle simulated collision pedestrian protection test. The accuracy of the marking method is directly related to the accuracy of the test points, which in turn affects the test result value and simulation benchmarking results.

[0003] At present, the existing methods for marking lines in simulated collision pedestrian protection tests are generally divided into two types: The first method uses a marking fixture that is independent of the pedestrian protection test launch equipment. This type of device usually has the characteristics of independent installation and movement, multiple connection points, and the base is moved by pulleys or slide rails. When using this type of tooling to complete the marking of different parts such as the hood front edge line baseline, bumper upper baseline, and lower baseline, the tooling base must also be ensured to be perpendicular or parallel to the impact direction, which takes a lot of time to move, reposition and fix the tooling base; and the relative position of the tooling base is prone to change during the marking process, thereby affecting the test area and point accuracy of the pedestrian protection test marking.

[0004] The second method uses equipment such as lasers or 3D scanners to establish coordinates based on the vehicle's contour data, and then draw lines through controller instructions. Although this method improves efficiency, it has high requirements for a series of equipment and software. In addition, whether this type of virtual coordinate drawing method meets the requirements of standards and regulations still needs to be verified. There are doubts about the accuracy of drawing lines each time this method is used, so it lacks practicality and reliability. Summary of the invention

[0005] The purpose of the present invention is to provide a pedestrian protection test marking device and a marking method thereof, so as to solve the technical problem in the prior art that the relative position of the tooling base changes during the marking process, affecting the accuracy of the test area and points.

[0006] In a first aspect, the present invention provides a pedestrian protection test marking device, comprising: A fixing member, wherein a first end of the fixing member is used to be connected to a transmitter of an automobile impact device, and the transmitter of the automobile impact device can reciprocate along a first direction; A transition piece, wherein a first end of the transition piece is connected to a second end of the fixing piece, and the second end of the transition piece extends in the first direction or the second direction, and a preset angle is formed between the second direction and the first direction; A pivot seat, pivotally connected to the second end of the adapter; An adjusting member connected to the pivot seat, wherein an adjusting portion is provided inside the adjusting member; An identification member is installed in the adjusting portion, and the identification member can reciprocate along a preset direction.

[0007] A pedestrian protection test marking device as described above, wherein preferably, the fixing member includes a fixing member body, a first connecting block and a second connecting block, the first connecting block is arranged at the first end of the fixing member body, the second connecting block is arranged at the second end of the fixing member body, the first connecting block is used to connect to the transmitter of the automobile impact equipment, and the second connecting block is connected to the first end of the adapter.

[0008] In the pedestrian protection test marking device as described above, preferably, the fixing body is a hollow box structure, and a weight-reducing hole is provided through the wall of the fixing body.

[0009] In the pedestrian protection test marking device as described above, preferably, the adapter includes a third connecting block and a first connecting block connected to each other, the third connecting block is connected to the second connecting block, and the first connecting block extends along the first direction.

[0010] A pedestrian protection test marking device as described above, wherein preferably, the adapter includes a third connecting block, a first adapter block and a second adapter block connected in sequence, the third connecting block is connected to the second connecting block, the first adapter block extends along the first direction, and the second adapter block extends along the second direction.

[0011] In the pedestrian protection test marking device as described above, preferably, the second adapter block and the third adapter block are detachably connected via bolts.

[0012] In the pedestrian protection test marking device as described above, preferably, the adjustment portion is an adjustment groove penetratingly provided on the adjustment member, the adjustment groove extends along the preset direction, and the identification member is loosely fitted in the adjustment groove.

[0013] In the pedestrian protection test marking device as described above, preferably, the identification member is a marking ruler.

[0014] In the pedestrian protection test marking device as described above, preferably, a laser line projector is provided on the fixing member or the adapter.

[0015] In a second aspect, the present invention provides a marking method, using the aforementioned pedestrian protection test marking device, the marking method comprising: Install the fixings to the vehicle impact launch device; Install the adapter on the fixing part; Installing an identification piece at the front end of the adapter; The marking device moves in three dimensions and adjusts the angle to control the movement of the identification part, completing the marking of the engine hood front edge line reference line, the bumper upper reference line, the lower reference line, and the bumper corner; Install a laser line projector at the front end of the fixing part or adapter to draw the engine hood dividing lines and point grid lines.

[0016] Compared with the prior art, the present invention improves the marking accuracy by arranging the pedestrian protection test marking device on the transmitter of the automobile impact equipment and utilizing the mechanical control of the automobile impact equipment itself; eliminates the marking errors of the test area and points caused by inaccurate positioning of the tooling base or movement of the base during the marking process; eliminates the step of positioning the tooling base before marking each time in the previous marking method, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a scribing device of a first structure provided by an embodiment of the present invention; Figure 2 It is a schematic structural diagram of a scribing device of a second structure provided in an embodiment of the present invention.

[0018] Description of reference numerals: 10-fixing piece, 11-fixing piece body, 12-first connecting block, 13-second connecting block, 14-weight reduction hole; 20-adapter, 21-third connecting block, 22-first adaptor block, 23-second adaptor block; 30- pivot seat; 40-adjusting member, 41-adjusting portion; 50- identification piece; 60-Automobile impact equipment; D1-first direction; D2 - Second direction. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0020] Reference Figure 1 as well as Figure 2 As shown, an embodiment of the present invention provides a pedestrian protection test marking device, including a fixing member 10, an adapter 20, a pivot seat 30, an adjustment member 40 and an identification member 50, wherein: The first end of the fixing member 10 is used to connect with the transmitter of the automobile impact device 60, and the transmitter of the automobile impact device 60 can reciprocate along the first direction D1. In a feasible implementation, the first direction D1 is parallel to the direction of travel of the vehicle. The transmitter of the automobile impact device 60 is installed with a human body profiling organ, and the transmitter of the automobile impact device 60 pushes the human body profiling organ toward the engine compartment of the automobile to simulate the actual injury of the pedestrian when being hit by the vehicle, and provide more accurate test data.

[0021] The marking device is detachably fixed to the automobile impact device 60 by using the fixing member 10, thereby eliminating the traditional independent marking fixture frame, simplifying the equipment structure, reducing the space occupied by the equipment, making the installation and removal of the marking device more convenient, and improving the efficiency of operation. At the same time, the mechanical control of the motor encoder of the automobile impact device 60 itself is used, and the motor encoder can accurately control the moving position of the transmitter, thereby controlling the movement of the marking device, thereby ensuring the accuracy and repeatability of marking and improving the precision of marking.

[0022] The first end of the adapter 20 is connected to the second end of the fixing member 10, and the second end of the adapter 20 extends in the first direction D1 or the second direction D2. There is a preset angle between the second direction D2 and the first direction D1. The connection between the adapter 20 and the fixing member 10 is also a detachable connection, so that the adapter 20 can be replaced as needed. The second ends of different adapters 20 can extend in different directions to adapt to different marking parts of the vehicle. Different adapters 20 can be replaced according to the marking needs. During the entire marking process, the adapter 20 only needs to be replaced once according to the vehicle part, thereby simplifying the operation steps. In the embodiment provided by the present invention, the first direction D1 is perpendicular to the second direction D2, and the plane where the second direction D2 and the first direction D1 are located is a horizontal plane.

[0023] The pivot seat 30 is pivotally connected to the second end of the adapter 20. The pivot seat 30 is connected to the second end of the adapter 20 via a pivot or a similar structure, so that the pivot seat 30 can rotate or swing, thereby achieving multi-directional adjustment, increasing the degree of freedom of the marking device, so that the identification member 50 can be extended to different marking positions on the vehicle. At the same time, the pivot seat 30 ensures stability during rotation or swinging, so that the marking device can maintain precise control during the marking process.

[0024] The adjusting member 40 is connected to the pivot seat 30, and an adjusting portion 41 is provided inside the adjusting member 40. The marking member 50 is installed inside the adjusting portion 41. When the marking member 50 is placed against a corresponding position on the vehicle, a certain contour line of the collision area can be drawn. The marking member 50 can move back and forth along a preset direction, thereby achieving precise adjustment of the marking position. The movement of the marking member 50 can be linear movement, curved movement, or other forms of reciprocating movement, which depends on the design of the adjusting portion 41 and is not limited here.

[0025] By setting the pedestrian protection test marking device on the transmitter of the automobile impact device 60, the mechanical control of the automobile impact device 60 itself is utilized, and no pulleys or slide rails are used. The entire test process is installed on the automobile impact device 60. The coordinate positioning program of the device itself makes the movement more stable and the positioning more accurate, which improves the marking accuracy. The marking errors of the test area and points caused by the inaccurate positioning of the tooling base or the movement of the base during the marking process are eliminated; the step of positioning the tooling base before marking each time in the previous marking method is eliminated, which improves the test efficiency.

[0026] In the embodiment provided by the present invention, the fixing member 10 includes a fixing member body 11, a first connecting block 12 and a second connecting block 13, wherein: The fixing body 11 is the main part of the fixing 10 and provides overall structural support and a connection platform.

[0027] The first connection block 12 is disposed at the first end of the fixing body 11 and is used to connect to the transmitter of the automobile impact device 60 . The first connection block 12 is provided with a connection structure matching the automobile impact device 60 , such as a threaded hole or a slot.

[0028] The second connection block 13 is disposed at the second end of the fixing body 11 , and is connected to the first end of the adapter 20 . The second connection block 13 is provided with a connection structure matching the adapter 20 , such as a threaded hole or a slot.

[0029] The fixing body 11 is connected to the transmitter and the adapter 20 of the automobile impact device 60 through the first connecting block 12 and the second connecting block 13, respectively, to ensure the stability and reliability of the entire marking device and to make the installation and maintenance of the marking device more convenient.

[0030] In a feasible implementation, the fixing body 11 is a hollow box structure, and a weight-reducing hole 14 is provided through the wall of the fixing body 11 to reduce the overall weight while ensuring the overall structural strength. The shape and size of the weight-reducing hole 14 can be adjusted according to specific design requirements. Common shapes include circular, square, elliptical, etc., which are not limited here.

[0031] Reference Figure 1As shown, a first structure of an adapter 20 is provided, the adapter 20 includes a third connecting block 21 and a first adapter block 22 connected to each other, the third connecting block 21 is connected to the second connecting block 13, the third connecting block 21 is designed with a connecting structure matching the second connecting block 13 of the fixing member 10, such as a threaded hole or a slot, etc., the first adapter block 22 extends along the first direction D1, and the pivot seat 30 is arranged at one end of the first adapter block 22 away from the third connecting block 21 to be suitable for a preset marking area.

[0032] Reference Figure 2 As shown, a second structure of an adapter 20 is provided, the adapter 20 includes a third connecting block 21, a first adapter block 22 and a second adapter block 23 which are connected in sequence, the third connecting block 21 is connected to the second connecting block 13, the third connecting block 21 is designed with a connecting structure matching the second connecting block 13 of the fixing member 10, such as a threaded hole or a slot, etc., the first adapter block 22 extends along the first direction D1, the second adapter block 23 extends along the second direction D2, and the pivot seat 30 is arranged at one end of the first adapter block 22 away from the third connecting block 21, so as to be suitable for a preset marking area.

[0033] In the embodiment provided by the present invention, the adjustment portion 41 is an adjustment groove that is provided through the adjustment member 40, and the identification member 50 is loosely fitted in the adjustment groove. The inner diameter of the adjustment groove is adapted to the outer diameter of the identification member 50 to accommodate and guide the movement of the identification member 50, and the identification member 50 can be loosely fitted therein, which not only ensures the free movement of the identification member 50, but also prevents it from being offset during the movement. The adjustment groove extends along a preset direction to ensure that the identification member 50 remains on a predetermined path during the movement, thereby achieving precise adjustment. The preset direction can be designed according to specific test requirements, such as a straight line, a curve, etc. Preferably, the adjustment groove is a linear groove, and the preset direction extends in a straight line direction.

[0034] Preferably, a threaded hole can be further provided on the adjusting member 40, and the inner thread of the threaded hole is cooperated with a bolt member, and the threaded hole is connected to the adjusting groove. After the identification member 50 is moved to a suitable position along the axial direction of the adjusting groove, the identification member 50 can be fixed in the adjusting groove by tightening the bolt member to lock the position of the identification member 50. When it is necessary to move the position of the identification member 50 again, it is only necessary to loosen the bolt member, and the bolt member will no longer abut against the identification member 50, so that the identification member 50 can move freely.

[0035] In a feasible implementation, the identification member 50 is a marking ruler, which is a long strip tool with scales, used to accurately mark the vehicle. The scales on the marking ruler provide an intuitive reference, helping the operator to accurately control the marking position and improve the marking accuracy. At the same time, the precise movement of the marking ruler in the adjustment slot ensures the accuracy of the marking position and improves the reliability of marking.

[0036] In the embodiment provided by the present invention, a laser line projector (not shown) is provided on the fixing member 10 or the adapter 20. The laser line projector can project precise horizontal or vertical lines to help make precise markings on the vehicle and assist in drawing engine hood dividing lines and point grid lines.

[0037] Based on the pedestrian protection test marking device provided in the above embodiment, the working process of the present invention is: 1) installing the fixing part 10 on the automobile impact launch device; 2) installing the adapter 20 on the fixing part 10; 3) then installing the identification part 50 at the front end of the adapter 20; 4) the marking device performs three-dimensional movement and angle adjustment to control the movement of the identification part 50, and completes the marking of the front edge line baseline of the engine hood, the upper baseline of the bumper, the lower baseline, the bumper corner, etc.; 5) a laser line projector is provided at the front end of the fixing part 10 or the adapter 20 to mark the engine hood dividing lines and point grid lines.

[0038] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A pedestrian protection test marking device, characterized in that: include: A fixing member, wherein a first end of the fixing member is used to be connected to a transmitter of an automobile impact device, and the transmitter of the automobile impact device can reciprocate along a first direction; A transition piece, wherein a first end of the transition piece is connected to a second end of the fixing piece, and the second end of the transition piece extends in the first direction or the second direction, and a preset angle is formed between the second direction and the first direction; A pivot seat, pivotally connected to the second end of the adapter; An adjusting member connected to the pivot seat, wherein an adjusting portion is provided inside the adjusting member; An identification member is installed in the adjusting portion, and the identification member can reciprocate along a preset direction.

2. The pedestrian protection test marking device according to claim 1, characterized in that: The fixing member includes a fixing member body, a first connecting block and a second connecting block, wherein the first connecting block is arranged at the first end of the fixing member body, the second connecting block is arranged at the second end of the fixing member body, the first connecting block is used to be connected to the transmitter of the automobile impact device, and the second connecting block is connected to the first end of the adapter.

3. The pedestrian protection test marking device according to claim 2, characterized in that: The fixing member body is a hollow box structure, and a weight-reducing hole is provided through the wall of the fixing member body.

4. The pedestrian protection test marking device according to claim 2, characterized in that: The adapter includes a third connecting block and a first connecting block connected to each other. The third connecting block is connected to the second connecting block. The first connecting block extends along the first direction.

5. The pedestrian protection test marking device according to claim 2, characterized in that: The adapter includes a third connecting block, a first connecting block and a second connecting block which are connected in sequence, the third connecting block is connected to the second connecting block, the first connecting block extends along the first direction, and the second connecting block extends along the second direction.

6. The pedestrian protection test marking device according to claim 1, characterized in that: The second adapter block is detachably connected to the third adapter block via a bolt.

7. The pedestrian protection test marking device according to claim 1, characterized in that: The adjusting portion is an adjusting groove which is provided through the adjusting member, the adjusting groove extends along the preset direction, and the identification member is loosely fitted in the adjusting groove.

8. The pedestrian protection test marking device according to claim 1, characterized in that: The identification piece is a marking ruler.

9. The pedestrian protection test marking device according to claim 1, characterized in that: A laser line projector is provided on the fixing part or the adapter.

10. A marking method, characterized in that: Using the pedestrian protection test marking device according to any one of claims 1 to 9, the marking method includes: Install the fixings to the vehicle impact launch device; Install the adapter on the fixing part; Installing an identification piece at the front end of the adapter; The marking device moves in three dimensions and adjusts the angle to control the movement of the identification part, completing the marking of the engine hood front edge line reference line, the bumper upper reference line, the lower reference line, and the bumper corner; Install a laser line projector at the front end of the fixing part or adapter to draw the engine hood dividing lines and point grid lines.

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