Special bumper detection machine

Abstract

The utility model relates to the field of automobile part detection, in particular to a bumper detection special machine, which comprises a support table, and a clamping part, a distance detection part, a hole site detection part, a weld bead detection part and a sleeve detection part which are positioned on the support table, and is characterized in that the clamping part comprises a first clamping plate, a second clamping plate, a centering clamping assembly, a rotating cylinder and a clamping piece; a to-be-detected product is pre-positioned through a first clamping plate and a second clamping plate, then a centering air cylinder of the centering clamping assembly drives a side clamping plate, and a rotating air cylinder drives a clamping piece to fix the to-be-detected product, so that the stability of the to-be-detected product in the detection process is ensured; and the distance detection part, the hole site detection part, the weld bead detection part and the sleeve detection part are arranged to detect the span of the energy absorption box, a plurality of mounting holes, a weld joint on the energy absorption box and a sleeve in the energy absorption box respectively, all detection contents are performed synchronously, and compared with assembly line type step-by-step detection, more time is saved.

Description

Technical Field

[0001] The utility model relates to the field of automobile part detection, in particular to a special machine for bumper detection. Background Art

[0002] Automobile bumpers have functions such as decorating vehicles, providing safety protection, and improving the aerodynamic characteristics of vehicles. From an aesthetic perspective, they are decorative and are important components for decorating the vehicle's exterior. From a safety perspective, when a vehicle is involved in a low-speed collision accident, the energy-absorbing box on the bumper can play a buffering role to protect the vehicle body, and it can also play a certain role in protecting pedestrians in the event of an accident with pedestrians. Therefore, the detection of bumpers is crucial. After installing the energy-absorbing box onto the bumper body, it is necessary to detect the distance between the two energy-absorbing boxes, the height of the weld bead, nuts, and machining hole positions to prevent improper installation during assembly.

[0003] The utility model patent with the publication number CN221123220U discloses a front bumper detection device. By arranging a plurality of telescopic cylinders around the bumper and cooperating with each other, the bumper is firmly fixed on the detection table; a plurality of detachable detection frames are installed on the substrate, and an electric telescopic rod is configured on each detection frame. The detection pin is driven by the electric telescopic rod to insert into the through hole opened on the long side of the bumper, so that the detection pin detects the through hole. The above device requires the cooperation of a plurality of telescopic cylinders to clamp the bumper and cannot detect the distance between the energy-absorbing boxes. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a special machine for bumper detection. The clamping part is used to fix the product to be detected to ensure the stability of the product to be detected during the detection process, and a plurality of detection parts are set according to the detection items of the product to be detected.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A special machine for bumper detection includes a support table, and a clamping part, a distance detection part, a hole position detection part, a weld bead detection part, and a sleeve detection part located on the support table. The clamping part includes a first clamping plate, a second clamping plate, and a centering clamping assembly. The first clamping plate is arranged along the periphery of the bumper body for clamping the bumper body. The second clamping plate is located on both sides of the energy-absorbing box for clamping the energy-absorbing box. The centering clamping assembly cooperates with the second clamping plate to loosen or clamp the energy-absorbing box. The distance detection part is used to measure the distance between the two energy-absorbing boxes.

[0007] For the above-mentioned dedicated bumper detection machine, the centering and clamping assembly includes a centering cylinder, a driving block, a first slideway, an inclined pull rod, a driven block, a second slideway and side clamping plates. The centering cylinder is located at the center of the support table, and its output end is connected to the driving block. The bottom of the driving block is connected to the first slideway through a slider, and both sides are pivotally connected to the inclined pull rod respectively. The other end of the inclined pull rod is pivotally connected to the driven block. The bottom of the driven block is connected to the second slideway through a slider, and the top is connected to the side clamping plates. The two side clamping plates are driven to move by the centering cylinder.

[0008] For the above-mentioned dedicated bumper detection machine, the distance detection part includes laser distance sensors located on one side of the energy absorption box. The number of the laser distance sensors is two, which are located outside the product to be detected and symmetrically arranged.

[0009] For the above-mentioned dedicated bumper detection machine, the clamping part further includes a rotary cylinder and a clamping member located outside the product to be detected. The output end of the rotary cylinder drives the clamping member to press against the energy absorption box, and the product to be detected is fixed between the support table and the clamping member.

[0010] For the above-mentioned dedicated bumper detection machine, the hole position detection part includes a first hole position detection component, a second hole position detection component, a third hole position detection component and a nut detection component. The first hole position detection component includes a first cylinder and a detection pin. The output end of the first cylinder is connected to the detection pin. The detection pin is perpendicular to the side surface of the bumper body and matches the first mounting hole. The presence or absence of the first mounting hole is judged by the stroke of the detection pin.

[0011] For the above-mentioned dedicated bumper detection machine, the second hole position detection component includes a second cylinder and a laser hole position sensor. The second cylinder is located inside the product to be detected, and its output end is connected to the laser hole position sensor. The presence or absence of the second mounting hole located at the upper end of the energy absorption box is judged by the laser hole position sensor.

[0012] For the above-mentioned dedicated bumper detection machine, the third hole position detection component includes a fixed pin and a proximity switch. The fixed pin is perpendicular to the bottom surface of the bumper body and matches the third mounting hole of the bumper body. The proximity switch is located on one side of the fixed pin. The presence or absence of the third mounting hole is judged by the fixed pin and the proximity switch.

[0013] For the above-mentioned dedicated bumper detection machine, the nut detection component includes a fourth cylinder and a pressure sensor. The output end of the fourth cylinder is connected to the pressure sensor. The presence or absence of the nut is judged by the pressure sensor.

[0014] For the above-mentioned dedicated bumper detection machine, the weld bead detection part includes a weld bead detection cylinder located inside the product to be detected. The output end of the weld bead detection cylinder is connected to a detection plate. The moving direction of the detection plate is perpendicular to the long side of the energy absorption box, and the bottom of the detection plate contacts the upper surface of the energy absorption box with a weld seam.

[0015] For the above-mentioned special machine for bumper detection, the sleeve detection part of the special machine includes a photoelectric sensor, which is located at one end of the energy-absorbing box away from the bumper body, and senses the presence or absence of the sleeve inside the energy-absorbing box through the photoelectric sensor.

[0016] The beneficial effects produced by adopting the above technical solutions are as follows:

[0017] The utility model pre-positions the product to be inspected through the first clamping plate and the second clamping plate, and then drives the side clamping plate through the centering cylinder and drives the clamping part through the rotating cylinder to fix the product to be inspected, ensuring the stability of the product to be inspected during the detection process; and since there are many items to be detected for the product to be inspected, the utility model is provided with a distance detection part, a hole position detection part, a weld bead detection part and a sleeve detection part, which respectively detect the span of the energy-absorbing box, multiple mounting holes, the weld beads on the energy-absorbing box, and the sleeve inside the energy-absorbing box, and a plurality of hole position detection components are respectively provided for different mounting holes to ensure that each mounting hole can be detected in place and meet the assembly requirements.

[0018] The structure of the utility model is simple, and all detection contents are carried out synchronously. Compared with the step-by-step detection in a production line, it saves more time, and the detection results can be synchronized to the display screen, which is more convenient for recording and reading the results. Description of the Drawings

[0019] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0020] Figure 1 It is a schematic structural diagram of the product to be inspected of the present utility model (not drawn to scale);

[0021] Figure 2 It is a schematic structural diagram of clamping the product to be inspected of the present utility model (not drawn to scale);

[0022] Figure 3 It is a schematic structural diagram of the present utility model (not drawn to scale);

[0023] Figure 4 It is Figure 3 A partial enlarged schematic diagram of part A in

[0024] In the figure: 1. Support platform; 2. Clamping part; 21. First clamping plate; 22. Second clamping plate; 221. V-shaped groove; 23. Centering clamping assembly; 231. Centering cylinder; 232. Driving block; 233. First slideway; 234. Diagonal pull rod; 235. Driven block; 236. Second slideway; 237. Side clamping plate; 24. Rotary cylinder; 25. Clamping piece; 3. Distance detection part; 31. Laser distance sensor; 4. Hole position detection part; 41. First hole position detection assembly; 411. First cylinder; 412. Detection pin; 42. Second hole position detection assembly; 421. Second cylinder; 422. Laser hole position sensor; 43. Third hole position detection assembly; 431. Fixed pin; 432. Proximity switch; 44. Nut detection assembly; 441. Fourth cylinder; 442. Pressure sensor; 5. Weld bead detection part; 51. Weld bead detection cylinder; 52. Detection plate; 6. Sleeve detection part; 61. Photoelectric sensor; 7. Bumper body; 71. First mounting hole; 72. Third mounting hole; 73. Nut; 8. Energy absorption box; 81. Positioning column; 82. Second mounting hole; 83. Sleeve. Detailed implementation mode

[0025] The product to be inspected of the present utility model is a bumper with an energy absorption box, and its bottom is provided with processing holes and nuts. The outer contour of the product to be inspected, the processing holes, nuts and energy absorption box thereon are all arranged symmetrically left and right. In the present utility model, the inside and outside of the product to be inspected are defined as follows: the area between the two energy absorption boxes is the inside, and the other side is the outside. Therefore, the clamping part, distance detection part, hole position detection part, weld bead detection part and sleeve detection part in the present utility model are arranged symmetrically left and right.

[0026] As Figures 1-4As shown in the figure, the utility model includes a support table 1, and a clamping part 2, a distance detection part 3, a hole position detection part 4, a weld bead detection part 5 and a sleeve detection part 6 located on the support table. The clamping part includes a first clamping plate 21, a second clamping plate 22 and a centering clamping component 23. The first clamping plate 21 is arranged along the periphery of the bumper body 7 and is used to clamp the bumper body 7. The second clamping plate 22 is located on both sides of the energy absorption box 8 and is used to clamp the energy absorption box 8. A positioning post 81 is arranged on the outer side of the energy absorption box 8, and the second clamping plate 22 is arranged in a V-shaped groove 221 that matches it. The operator can place the product to be inspected between the first clamping plate 21 and the second clamping plate 22, ensuring that the positioning post 81 is located in the V-shaped groove 221, and the pre-positioning of the product to be inspected can be completed. The centering clamping component 23 includes a centering cylinder 231, an active block 232, a first slideway 233, an inclined pull rod 234, a passive block 235, a second slideway 236 and a side clamping plate 237. The centering cylinder 231 is located in the center of the support table 1, and its output end is connected to the active block 232. The bottom of the active block 232 is connected to the first slideway 233 through a slider. The first slideway 233 is perpendicular to the surface of the bumper body 7. Both sides of the active block 232 are respectively pivotally connected to the inclined pull rod 234. The other end of the inclined pull rod 234 is pivotally connected to the passive block 235. The bottom of the passive block 235 is connected to the second slideway 236 through a slider. The second slideway 236 is arranged perpendicular to the first slideway 233. The top of the passive block 235 is connected to the side clamping plate 237. By driving the active block 232 to move forward or backward through the centering cylinder 231, the two side clamping plates 237 are driven to move, and the energy absorption box 8 of the product to be inspected is clamped or loosened in cooperation with the second clamping plate 22.

[0027] The distance detection part 3 of the utility model includes laser distance sensors 31 located on one side of the energy absorption box 8. The number of the laser distance sensors 31 is two, which are symmetrically arranged outside the product to be inspected. When the centering clamping component 23 completes the positioning of the product to be inspected, the laser distance sensors 31 are activated to detect the numerical values of the positions of the sensors and the product to be inspected. Through calculation (the sum of two set values plus the set value of the span minus two measured values), the span numerical value of the two energy absorption boxes 8 is finally obtained.

[0028] The clamping part 2 further includes a rotary cylinder 24 and a clamping piece 25 located outside the product to be inspected. The output end of the rotary cylinder 24 drives the clamping piece 25 to press against the energy absorption box 8, fixing the product to be inspected between the support table 1 and the clamping piece 25 to ensure the stability of the product to be inspected during detection.

[0029] As Figures 3-4As shown, the hole position detection unit 4 includes a first hole position detection component 41, a second hole position detection component 42, a third hole position detection component 43, and a nut detection component 44. The first hole position detection component 41 includes a first air cylinder 411 and a detection pin 412. The output end of the first air cylinder 411 is connected to the detection pin 412. The detection pin 412 is perpendicular to the side surface of the bumper body 7 and matches the first mounting hole 71. The first air cylinder 411 drives the detection pin 412 to enter the first mounting hole 71 located in the middle position of the bumper body 7, and the presence or absence of the first mounting hole 71 is judged by the stroke of the detection pin 412.

[0030] The second hole position detection component 42 of the present utility model includes a second air cylinder 421 and a laser hole position sensor 422. The second air cylinder 421 is located inside the product to be inspected, and its output end is connected to the laser hole position sensor 422. The second air cylinder 421 drives the laser hole position sensor 422 to move, and the presence or absence of the second mounting hole 82 at the upper end of the energy absorption box 8 is judged by the laser hole position sensor 422.

[0031] As Figure 4 shown, the third hole position detection component 43 includes a fixed pin 431 and a proximity switch 432. The fixed pin 431 is perpendicular to the bottom surface of the bumper body 7 and matches the third mounting hole 72 at the bottom of the bumper body 7. The proximity switch 432 is located on one side of the fixed pin 431. When the operator places the product to be inspected on the clamping part 2, if the corresponding position at the bottom of the product to be inspected lacks the third mounting hole 72, due to the fixed pin 431, the product to be inspected cannot descend in place, and the proximity switch 432 cannot sense the product to be inspected, thereby judging the presence or absence of the third mounting hole 72.

[0032] As Figures 3-4 shown, the nut detection component 44 includes a fourth air cylinder 441 and a pressure sensor 442. The fourth air cylinder 441 is arranged obliquely downward, and its output end is connected to the pressure sensor 442. The fourth air cylinder 441 drives the pressure sensor 442 to move, and the presence or absence of the nut 73 is judged by the pressure sensor 442.

[0033] As Figures 2-3 The weld bead detection unit 5 includes a weld bead detection air cylinder 51 located inside the product to be inspected. The output end of the weld bead detection air cylinder 51 is connected to a detection plate 52. The moving direction of the detection plate 52 is perpendicular to the long side of the energy absorption box 8, and its bottom contacts the upper surface of the energy absorption box 8 with a weld seam. If there is a protrusion at the weld seam, it will affect the stroke of the detection plate 52, thereby judging whether the above weld seam is qualified.

[0034] As Figures 2-3As shown in the figure, the sleeve detection part 6 includes a photoelectric sensor 61. The photoelectric sensor 61 is located at one end of the energy absorption box 8 away from the bumper body 7, and senses the presence or absence of the sleeve 83 inside the energy absorption box 8 through the photoelectric sensor 61. In this embodiment, a total of eight photoelectric sensors 61 are provided to measure the four sleeves 83 in each energy absorption box 8 respectively.

[0035] The utility model further includes a display screen, and the measurement results of the distance detection part 3, the hole position detection part 4, the weld bead detection part 5 and the sleeve detection part 6 are shown on the display screen.

[0036] Working process:

[0037] 1. The operator places the product to be inspected between the first clamping plate 21 and the second clamping plate 22. The positioning post 81 of the energy absorption box 8 is located in the V-shaped groove 221. At this time, the fixing pin 431 is inserted into the third mounting hole 72.

[0038] 2. The centering cylinder 231 drives the active block 232 to move towards the bumper body 7, and drives the passive block 235 and the side clamping plate 237 to move through the inclined pull rod 234, so that the two side clamping plates 237 respectively press against the outer sides of the two energy absorption boxes 8. At the same time, the rotating cylinder 24 drives the clamping member 25 to rotate and descend, pressing against the energy absorption box 8 to fix the product to be inspected.

[0039] 3. The laser distance sensor 31 is started to measure the distance between the two energy absorption boxes 8; the first cylinder 411 is started to drive the detection pin 412 into the first mounting hole 71; the second cylinder 421 is started to drive the laser hole position sensor 422 to move above the second mounting hole 82; the fourth cylinder 441 is started to drive the pressure sensor 442 to abut against the nut 73; the weld bead detection cylinder 51 is started to drive the detection plate 52 to move towards the weld of the energy absorption box 8; the photoelectric sensor 61 is started to test the presence or absence of the sleeve 83 inside the energy absorption box 8.

[0040] 4. The measurement results of each item are shown on the display screen, and after the measurement is completed, the operator takes out the product to be inspected.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special-purpose machine for bumper detection, characterized in that: It includes a support platform (1) and a clamping part (2), a distance detection part (3), a hole position detection part (4), a weld bead detection part (5) and a sleeve detection part (6) located on the support platform (1). The clamping part (2) includes a first clamping plate (21), a second clamping plate (22) and a centering clamping assembly (23). The first clamping plate (21) is arranged along the periphery of the bumper body (7) for clamping the bumper body (7). The second clamping plate (22) is located on both sides of the energy absorption box (8) for clamping the energy absorption box (8). The centering clamping assembly (23) cooperates with the second clamping plate (22) to loosen or clamp the energy absorption box (8). The distance detection part (3) is used to measure the distance between two energy absorption boxes (8).

2. The dedicated bumper inspection machine according to claim 1, wherein: The centering clamping assembly (23) includes a centering cylinder (231), a driving block (232), a first slideway (233), an inclined pull rod (234), a driven block (235), a second slideway (236) and a side clamping plate (237). The centering cylinder (231) is located in the center of the support platform (1), and its output end is connected to the driving block (232). The bottom of the driving block (232) is connected to the first slideway (233) through a slider, and both sides are pivotally connected to the inclined pull rod (234). The other end of the inclined pull rod (234) is pivotally connected to the driven block (235). The bottom of the driven block (235) is connected to the second slideway (236) through a slider, and the top is connected to the side clamping plate (237). The two side clamping plates (237) are driven to move by the centering cylinder (231).

3. The dedicated bumper detection machine according to claim 1 or 2, characterized in that: The distance detection part (3) includes laser distance sensors (31) located on one side of the energy absorption box (8). The number of the laser distance sensors (31) is two, which are located outside the product to be inspected and symmetrically arranged.

4. The dedicated bumper inspection machine according to claim 3, characterized in that: The clamping part (2) further includes a rotary cylinder (24) and a clamping member (25) located outside the product to be inspected. The output end of the rotary cylinder (24) drives the clamping member (25) to press against the energy absorption box (8) to fix the product to be inspected between the support platform (1) and the clamping member (25).

5. The dedicated bumper inspection machine according to claim 4, characterized in that: The hole position detection part (4) includes a first hole position detection component (41), a second hole position detection component (42), a third hole position detection component (43) and a nut detection component (44). The first hole position detection component (41) includes a first cylinder (411) and a detection pin (412). The output end of the first cylinder (411) is connected to the detection pin (412). The detection pin (412) is perpendicular to the side surface of the bumper body (7) and matches the first mounting hole (71). The presence or absence of the first mounting hole (71) is judged by the stroke of the detection pin (412).

6. The dedicated bumper inspection machine according to claim 5, wherein: The second hole position detection component (42) includes a second cylinder (421) and a laser hole position sensor (422). The second cylinder (421) is located inside the product to be inspected, and its output end is connected to the laser hole position sensor (422). The presence or absence of the second mounting hole (82) located at the upper end of the energy absorption box (8) is judged by the laser hole position sensor (422).

7. The dedicated bumper inspection machine according to claim 6, characterized in that: The third hole position detection component (43) includes a fixing pin (431) and a proximity switch (432). The fixing pin (431) is perpendicular to the bottom surface of the bumper body (7) and matches the third mounting hole (72) of the bumper body (7). The proximity switch (432) is located on one side of the fixing pin (431), and the presence or absence of the third mounting hole (72) is judged by the fixing pin (431) and the proximity switch (432).

8. The dedicated bumper inspection machine according to claim 7, characterized in that: The nut detection component (44) includes a fourth cylinder (441) and a pressure sensor (442). The output end of the fourth cylinder (441) is connected to the pressure sensor (442), and the presence or absence of the nut (73) is judged by the pressure sensor (442).

9. The dedicated bumper inspection machine according to claim 8, characterized in that: The weld bead detection part (5) includes a weld bead detection cylinder (51) located inside the product to be inspected. The output end of the weld bead detection cylinder (51) is connected to a detection plate (52). The moving direction of the detection plate (52) is perpendicular to the long side of the energy absorption box (8), and the bottom of the detection plate contacts the upper surface of the energy absorption box (8) with a weld seam.

10. The dedicated bumper detection machine according to claim 9, characterized in that: The sleeve detection part (6) includes a photoelectric sensor (61). The photoelectric sensor (61) is located at one end of the energy absorption box (8) away from the bumper body (7), and the presence or absence of the sleeve (83) located inside the energy absorption box (8) is sensed by the photoelectric sensor (61).

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