CN104316308B - Clamping device for automobile panel dent resistance test and testing method using same - Google Patents

Abstract

The invention provides a clamping device for a test of the dent resistance of an automobile cover, and also relates to a method for using the clamping device for testing. The device base (1) of the clamping device is provided with multiple T-shaped grooves (2 ), the lower end of each clamping rod (3) of the clamping device is respectively equipped with a clamping plate (4), and a positioning bolt (5) is arranged on the clamping plate (4), and the positioning bolt (5) is set to be able to connect the clamping plate (4) and The T-shaped groove (2) is fixedly connected, the upper end of each clamping rod (3) is respectively provided with a clamping head (6), and the clamping mouth (7) is arranged on the clamping head (6). The clamping device of the present invention The clamping device and test method can conveniently and quickly realize the adjustment and fixation of the position of the clamping rod and the T-slot on the device base, and realize the adjustment of the relative position and distance between multiple clamping rods, which can be convenient and accurate. Efficiently implement dent resistance testing of automotive cladding panels.

Description

Clamping device and application of said clamping device for test of dent resistance of automobile panel test method

technical field

The invention belongs to the technical field of testing equipment for auto parts, and more specifically relates to a clamping device for a test of the dent resistance of an automobile cover, and also relates to a test method using the clamping device.

Background technique

With the development of the automobile industry, automobiles are required to save energy, protect the environment and improve the aerodynamic performance of automobiles. Compared with the past, a large number of high-strength ultra-thin steel plates (thickness is about 0.7mm) and light materials (such as aluminum alloy, etc.) are used in automobile panels. The aforementioned automotive panels are mostly composed of complex spatial surfaces, with the characteristics of thin materials, complex shapes, large structural dimensions and high surface quality requirements. When automobile panels are formed, due to factors such as uneven plastic deformation or unreasonable body design, some parts of the panels often have poor rigidity, and hollow sounds will be generated after being vibrated, resulting in the use of such panels. The assembled car generates vibration, noise, etc. during driving; and since the cover becomes thinner and "softer", a series of problems arise, such as deformation of dents due to self-weight or minor collisions. In the field of automobile manufacturing, the ability of the outer cover to resist dent deflection and local dent deformation and maintain shape under the action of lateral concentrated external load is called dent resistance. At present, most of the dent resistance testing machine systems at home and abroad are mainly aimed at evaluating the dent resistance of small test pieces such as flat test pieces, bulging test pieces, and simulated coverings, but cannot perform dent resistance tests on actual coverings. . Or, for an actual automobile panel, manufacture a set of special molds to test the panel's dent resistance, not only the cost is high, the cycle is long, but also a lot of manpower and material resources are consumed.

Contents of the invention

The technical problem to be solved by the present invention is to provide a simple structure, which can conveniently and quickly realize the adjustment and fixation of the position of the clamping rod and the T-shaped groove on the device base, and realize the relative position between multiple clamping rods. and distance adjustment, so as to accurately and efficiently realize the dent resistance test of the automobile panel, and can flexibly select the clamping point, the adjustment is simple and fast, and the test result is reliable. The clamping device for the dent resistance test of the automobile panel.

To solve the technical problems described above, the technical solution adopted by the present invention is:

The invention relates to a clamping device for the dent resistance test of an automobile cover, comprising a device base, on which a plurality of T-shaped grooves are arranged, and the clamping device also includes a plurality of clamping rods, each clamping The lower ends of the rods are respectively equipped with splints, the splints are provided with positioning bolts, and the positioning bolts are set to a structure capable of fixedly connecting the splints with the T-shaped slots, and the upper ends of each clamping rod are respectively provided with clamping heads, and the clamping heads A clamping opening is arranged on the top, and a suspension part capable of clamping the automobile cover is arranged on the top of the clamping device.

Each clamping rod includes a rod body and a screw part respectively. The upper end of the screw part is movably screwed on the lower end of the rod body, and the lower end of the screw part is movably fitted with multiple splints. The end portion of the lower end is set to a structure that can be stuck in the T-shaped slot, the upper end of the positioning bolt is screwed with a fastening nut, the lower end of the screw rod portion is fixedly installed with a support plate, and the positioning nut is arranged on the screw rod portion.

The T-shaped grooves include multiple transverse T-shaped grooves and multiple longitudinal T-shaped grooves, and the multiple splints set on the screw part are respectively connected with the horizontal T-shaped grooves and the longitudinal T-shaped grooves by positioning bolts, and the clamping The head is set in a U-shaped structure, the upper end of the clamping head is provided with a clamping bolt that can extend into the clamping mouth, and a pad is provided on the lower end of each splint, and the pad is set to the same structure as the thickness of the support plate .

The rod body part includes a support rod, an upper rotating block, and a lower rotating block. A lower mounting plate is arranged on the supporting rod, two connecting plates I arranged in parallel are arranged at the lower end of the lower rotating block, and an upper mounting plate is arranged at the upper end of the lower rotating block. As for the plates, two connecting plates II are arranged on the upper rotating block, the two connecting plates I are movably connected with the lower mounting plate through connecting pins, the upper mounting plate is movably connected with the two connecting plates II through connecting pins, and the two The road connecting plate I is arranged as a structure arranged at a vertical angle with the upper mounting plate.

The upper end of the upper rotating block is provided with two protruding blocks, there is a gap between the two protruding blocks, the lower end of the clamping head is provided with a protruding connecting rod, and the connecting rod extends between the two protruding blocks, The connecting rod is movably connected with the two raised blocks through connecting pins.

The base of the device includes a base plate, on which a plurality of platform blocks are arranged, and a gap structure is arranged between the plurality of platform blocks, and transverse T-shaped slots are formed at the transverse parts between the plurality of platform blocks, and between the plurality of platform blocks The longitudinal part forms a longitudinal T-shaped groove.

The present invention also relates to a method for testing with the above-mentioned clamping device, the steps of which are as follows: 1) suspending the automobile cover on the suspension part; 2) movably installing a plurality of clamping rods on In the T-shaped groove, adjust the position of the clamping rod, adjust the height of the clamping rod; 3) clamp the multiple clamping points of the automobile cover on the clamping heads of multiple clamping rods respectively, and place multiple The clamping rod is fixedly installed in the T-shaped slot, the height of the clamping rod is fixed, the clamping screw is tightened, and the dent resistance test of the automobile cover is carried out.

When adjusting the position of the clamping rod, adjust the rotation angle of the upper and lower rotating blocks. After the angle is adjusted in place, lock the respective positioning pins of the upper and lower rotating blocks to fix the upper and lower rotating blocks.

When adjusting the position of the clamping rod, adjust the height of the clamping rod through the screw part of each clamping rod, tighten the positioning nut, fix the position of the screw rod part and the rod body part, and place more than one part of each clamping rod The two splints are respectively clamped in the transverse T-shaped groove and the longitudinal T-shaped groove, and the fastening nuts on the positioning bolts are tightened to fix the clamping rod.

Adopt technical scheme of the present invention, can obtain following beneficial effect:

The clamping device for the dent resistance test of the automobile cover part according to the present invention can conveniently and quickly realize the position adjustment between the clamping rod and the T-shaped groove on the device base through the setting of the clamping rod and the T-shaped groove. Adjustment and fixation, as well as the adjustment of the relative position and distance between multiple clamping rods, so that it can conveniently and accurately clamp and position automobile panels of different sizes, which meets the diverse needs of enterprise automobile panels and saves Cost, after the automobile panel is clamped and positioned, the dent resistance test of the automobile panel can be accurately and efficiently realized. The above-mentioned clamping device has a simple structure, can flexibly select the clamping point, is easy and quick to adjust, and the test result is reliable.

Description of drawings

The following is a brief description of the contents expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is the schematic structural view of the clamping device for the dent resistance test of the automobile panel of the present invention;

Fig. 2 is the schematic structural view of the device base of the test holding device described in Fig. 1;

Fig. 3 is the schematic structural view of the clamping rod of the test clamping device described in Fig. 1;

The marks in the drawings are: 1. Device base; 2. T-slot; 3. Clamping rod; 4. Plywood; 5. Positioning bolt; 6. Clamping head; 7. Clamping mouth; 8. Rod Body part; 9. Screw part; 10. End part; 11. Fastening nut; 12. Support plate; 13. Clamping bolt; 14. Pad block; 15. Support rod; Rotating block; 18, lower mounting plate; 19, connecting plate I; 20, upper mounting plate; 21, connecting plate II; 22, positioning nut; 23, raised block; 24, connecting rod; 25, support Base; 26, bottom plate; 27, platform block; 28, transverse T-shaped groove; 29, longitudinal T-shaped groove.

detailed description

Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

As shown in accompanying drawing 1-accompanying drawing 3, the present invention is a kind of clamping device for automobile panel dent resistance test, comprises device base 1, is provided with multiple T-shaped grooves 2 on described device base 1, clamps The device also includes a plurality of clamping rods 3, the lower end of each clamping rod 3 is respectively equipped with a splint 4, and the splint 4 is provided with a positioning bolt 5, and the positioning bolt 5 is set to be able to connect the splint 4 with the T-shaped groove 2. In the structure of fixed connection, the upper end of each clamping rod 3 is respectively provided with a clamping head 6, and the clamping head 6 is provided with a clamping opening 7, and the top of the clamping device is provided with a suspension part capable of clamping an automobile cover. The above-mentioned structural arrangement can conveniently and quickly realize the adjustment and fixation of the positions of the clamping rods and the T-shaped groove 2 on the device base, as well as the adjustment of the relative positions and distances between multiple clamping rods, so that it can be convenient and accurate Car cover parts of different sizes can be clamped and positioned accurately. After the car cover parts are clamped and positioned, the dent resistance test of the car cover parts can be realized accurately and efficiently. The above-mentioned clamping device has a simple structure and can flexibly select the clamping point , The adjustment is simple and fast, and the test results are reliable.

Each clamping rod 3 includes a rod body part 8 and a screw part 9 respectively, the upper end of the screw part 9 is movably screwed on the lower end of the rod body part 8, and the lower end of the screw part 9 is movably fitted with a plurality of splints 4, each splint 4 Install a positioning bolt 5 respectively, the end portion 10 of the lower end of the positioning bolt 5 is set to a structure that can be stuck in the T-shaped slot 2, the upper end of the positioning bolt 5 is screwed with a fastening nut 11, and the lower end of the screw part 9 is fixed and supported. Positioning nuts 22 are arranged on the plate 12 and the screw part 9 . The arrangement of the rod body part 8 and the screw part 9 can realize screwing in and out of the screw part relative to the rod body part, realizes the free and convenient adjustment of the height of the clamping rod, and adapts to the clamping of automobile panels with different structural sizes during the test. It meets the holding requirements and improves the versatility of the clamping device. The positioning bolt and the positioning nut, the end portion 10 of the lower end of the positioning bolt 5 is clamped in the T-shaped groove 2, and the splint 4 can be fixedly connected with the T-shaped groove 2, so as to realize the positioning of the clamping rod 3 connected with the splint 4 fixed.

The T-slot 2 includes a plurality of transverse T-slots 28 and a plurality of longitudinal T-slots 29, and a plurality of splints 4 set on the screw part 9 pass through the positioning bolts 5 and the transverse T-slots 28 and longitudinal T-slots respectively. The clamping head 6 is set to a U-shaped structure, the upper end of the clamping head 6 is provided with a clamping bolt 13 that can extend into the clamping port 7, and the lower end surface of each clamping plate 4 is respectively provided with a The spacer 14 is arranged as a structure having the same thickness as the support plate 12 . Each clamping rod is respectively fixed in the transverse T-shaped groove 28 and the longitudinal T-shaped groove 29 through a plurality of splints and a plurality of positioning bolts, so as to realize the positioning and regulation of each clamping rod from different orientations, and it is unavoidable During the test, the clamping bar is tilted or shaken, which improves the reliability of the test.

The rod body part 8 includes a support rod 15, an upper rotating block 16, and a lower rotating block 17. A lower mounting plate 18 is arranged on the supporting rod 15, and two connecting plates I19 arranged in parallel are arranged at the lower end of the lower rotating block 17. The upper end of the lower rotating block 17 is provided with an upper mounting plate 20, and the upper rotating block 16 is provided with two connecting plates II 21, and the two connecting plates I 19 are movably connected with the lower mounting plate 18 through connecting pins. The connecting plate II 21 is movably connected by connecting pins, and the two connecting plates I19 are arranged in a vertical angle arrangement with the upper mounting plate 20 . Through the setting of the upper rotating block 16 and the lower rotating block 17, rotating the upper rotating block 16 and the lower rotating block 17 can realize the angle adjustment of the clamping head 6 to different azimuths, thereby meeting the requirements for automobile covers of different shapes and sizes. Clamping and fixing improves the application range of the clamping device.

The upper end of the upper rotating block 16 is provided with two protruding blocks 23, there is a gap between the two protruding blocks 23, and a protruding connecting rod 24 is provided at the lower end of the clamping head 6, and the connecting rod 24 extends to the two protruding blocks. Between the raised blocks 23, the connecting rod 24 is movably connected with the two raised blocks 23 through connecting pins. Through the above-mentioned structural arrangement, the movable connection between the clamping head 6 and the upper rotating block 16 is conveniently realized, and the clamping head 6 can also realize movable rotation, which is convenient for clamping and fixing automobile panels with different structures, and improves the clamping device. scope of application.

The device base 1 includes a bottom plate 26, on which a plurality of platform blocks 27 are arranged, and a structure with gaps is arranged between the plurality of platform blocks 27, and a transverse T-shaped groove 28 is formed at a transverse position between the plurality of platform blocks 27 , the longitudinal positions between the plurality of platform blocks 27 form longitudinal T-shaped grooves 29 . Such a structure, through the combination of multiple platform blocks, can be provided with a plurality of multi-channel transverse T-shaped grooves 28 and multi-channel longitudinal T-shaped grooves 29, which is more convenient and more convenient than processing T-shaped grooves on the plate. It is convenient to adjust the width of the T-slot and improve the versatility.

The present invention also relates to a method for testing with the above-mentioned clamping device, the steps of which are as follows: 1) suspending the automobile cover on the suspension part; 2) movably installing a plurality of clamping rods 3 In the T-shaped groove 2, adjust the position and height of the clamping rod 3, and adjust the height of the clamping rod 3; On the clamping head 6, a plurality of clamping rods 3 are fixedly installed in the T-shaped groove 2, the height of the clamping rods 3 is fixed, the clamping screw 13 is tightened, and the dent resistance test of the automobile cover is carried out. The above method can conveniently and accurately clamp and position automobile panels of different sizes. After the automobile panels are clamped and positioned, the dent resistance test of the automobile panels can be accurately and efficiently realized. The above-mentioned clamping device has a simple structure. The clamping point can be flexibly selected, the adjustment is simple and fast, and the test result is reliable.

When adjusting the position of the clamping bar 3, adjust the rotation angles of the upper rotating block 16 and the lower rotating block 17, and after the angle is adjusted in place, lock the respective positioning pins of the upper rotating block 16 and the lower rotating block 17.

When adjusting the position of the clamping rod 3, adjust the height of the clamping rod 3 through the screw part 9 of each clamping rod 3, tighten the positioning nut 22, fix the position of the screw part 9 and the rod body part 8, and place each A plurality of splints 4 of a clamping rod 3 are respectively clamped in the transverse T-shaped groove 28 and the longitudinal T-shaped groove 29, and the fastening nuts 11 on the positioning bolts 5 are tightened to fix the clamping rod 3.

The clamping device for the dent resistance test of the automobile cover part according to the present invention can conveniently and quickly realize the position adjustment between the clamping rod and the T-shaped groove on the device base through the setting of the clamping rod and the T-shaped groove. Adjustment and fixation, as well as the adjustment of the relative position and distance between multiple clamping rods, so that it can conveniently and accurately clamp and position automobile panels of different sizes, which meets the diverse needs of enterprise automobile panels and saves Cost, after the automobile panel is clamped and positioned, the dent resistance test of the automobile panel can be accurately and efficiently realized. The above-mentioned clamping device has a simple structure, can flexibly select the clamping point, is easy and quick to adjust, and the test result is reliable.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various improvements are adopted in the method concept and technical solutions of the present invention, or the present invention is converted without improvement. The ideas and technical solutions of the invention that are directly applied to other occasions are within the protection scope of the present invention.

Claims (7)

1. A clamping device for the dent resistance test of an automobile cover, comprising a device base (1), multiple T-shaped grooves (2) are set on the described device base (1), and the clamping device also includes a plurality of clips Hold the bar (3), the lower end of each clamping bar (3) is respectively equipped with splints (4), the splints (4) are provided with positioning bolts (5), and the positioning bolts (5) are set to be able to clamp the splints (4) A structure that is fixedly connected to the T-shaped slot (2), each clamping rod (3) is provided with a clamping head (6) at the upper end, and a clamping mouth (7) is provided on the clamping head (6), The top of the clamping device is provided with a suspension component capable of clamping an automobile cover; It is characterized in that each clamping rod (3) includes a rod body (8) and a screw part (9), the upper end of the screw part (9) is movably screwed on the lower end of the rod body (8), and the screw part (9) A plurality of splints (4) are set movable at the lower end, and a positioning bolt (5) is respectively installed on each splint (4), and the end portion (10) at the lower end of the positioning bolt (5) is set to be able to be stuck in the T-shaped slot The structure in (2), the upper end of the positioning bolt (5) is screwed with the fastening nut (11), the lower end of the screw part (9) is fixedly installed with the support plate (12), and the positioning nut (22) is set on the screw part (9). ); The rod body part (8) includes a support rod (15), an upper rotating block (16), a lower rotating block (17), and a lower mounting plate (18) is arranged on the supporting rod (15), and the lower rotating block ( 17) The lower end is provided with two connecting plates I (19) arranged in parallel, the upper end of the lower rotating block (17) is provided with an upper mounting plate (20), and the upper rotating block (16) is provided with two connecting plates II (21) , the two connecting plates I (19) are flexibly connected with the lower mounting plate (18) through connecting pins, the upper mounting plate (20) is flexibly connected with the two connecting plates II (21) through connecting pins, and the two connecting The plate I (19) is arranged in a structure arranged at a perpendicular angle to the upper mounting plate (20). 2. The clamping device for the dent resistance test of automobile panels according to claim 1, characterized in that: the T-shaped grooves (2) include multiple transverse T-shaped grooves (28) and multiple longitudinal T-shaped grooves. Groove (29), a plurality of splints (4) sleeved on the screw part (9) are respectively connected with the transverse T-shaped groove (28) and the longitudinal T-shaped groove (29) by positioning bolts (5), and the clamping head (6) It is set in a U-shaped structure, the upper end of the clamping head (6) is provided with a clamping bolt (13) that can extend into the clamping mouth (7), and a spacer is respectively provided on the lower end of each splint (4) (14), the cushion block (14) is set to the same structure as the support plate (12) thickness. 3. The clamping device for the dent resistance test of automobile panels according to claim 1, characterized in that: the upper end of the upper rotating block (16) is provided with two raised blocks (23), and the two raised blocks (23) are There is a gap between the blocks (23), and the lower end of the clamping head (6) is provided with a protruding connecting rod (24), and the connecting rod (24) extends between two raised blocks (23), and the connecting rod (24 ) is movably connected with two road bumps (23) by connecting pins. 4. The clamping device for automobile panel dent resistance test according to claim 1, characterized in that: said device base (1) comprises a base plate (26), on which a plurality of platform blocks ( 27), a plurality of platform blocks (27) are arranged to have a gap structure, and the lateral position between the plurality of platform blocks (27) forms a transverse T-shaped groove (28), and the gap between the plurality of platform blocks (27) The longitudinal part forms a longitudinal T-shaped groove (29). 5. The clamping device according to any one of claims 1-4 claims to carry out the method for the dent resistance test of the automobile cover, characterized in that: the steps of the method for testing are: 1) suspending the automobile cover on a suspension on the component; 2) multiple clamping rods (3) are movably installed in the T-shaped groove (2), the position of the clamping rods (3) is adjusted, and the position and height of the clamping rods (3) are adjusted; 3 ) Clamp the multiple clamping points of the automobile cover on the clamping heads (6) of multiple clamping rods (3) respectively, and fix the multiple clamping rods (3) in the T-shaped groove ( 2) Inside, the height of the clamping rod (3) is fixed, and the clamping screw (13) is tightened, and the dent resistance test of the automobile panel is carried out. 6. The method for testing the clamping device according to claim 5, characterized in that: when adjusting the position of the clamping rod (3), adjust the rotation angle of the upper rotating block (16) and the lower rotating block (17), After the angle is adjusted in place, lock the respective positioning pins of the upper rotating block (16) and the lower rotating block (17). 7. The method for testing the clamping device according to claim 5, characterized in that: when adjusting the position of the clamping rod (3), the clamp is adjusted by the screw part (9) of each clamping rod (3) When the height of the rod (3) is in place, tighten the positioning nut (22), fix the position of the screw part (9) and the rod body part (8), and place the multiple splints (4) of each clamping rod (3) They are clamped in the transverse T-shaped groove (28) and the longitudinal T-shaped groove (29) respectively, and the fastening nut (11) on the positioning bolt (5) is tightened to fix the clamping rod (3).