Automobile shell detection all-in-one machine

Abstract

The application discloses a kind of automobile shell detection integrated machine, including rack, PLC, cooling seat is equipped on the rack, the standby seat of taking is located in the side of the cooling seat, and the turnover air cylinder matched with the standby seat of taking;Rotary platform is further provided on the rack, and the servo gripper matched with the rotary platform;Around the periphery of the rotary platform, the machine is sequentially fixed with the hole plugging detection device, the conduction voltage resistance detection device, the height detection device, the position degree detection device, the dotting device and the unloading station;The automobile shell detection integrated machine further includes unloading module and NG box;Turnover air cylinder, rotary platform, servo gripper, hole plugging detection device, conduction voltage resistance detection device, height detection device, position degree detection device, dotting device, unloading module are all signal connected with PLC.The application has the advantages of: higher detection accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts testing technology, and in particular to an integrated testing machine for automotive body shells. Background Technology

[0002] Traditional automotive body inspection requires multiple devices to complete tasks such as hole plugging detection, continuity withstand voltage testing, and insert height and position detection in steps, which has the following problems:

[0003] 1) Low efficiency: Manual handling and multiple clamping operations result in long testing cycles;

[0004] 2) Unstable accuracy: Manual operation is prone to introducing errors, resulting in poor data consistency;

[0005] 3) High cost: The cost of purchasing and maintaining multiple pieces of equipment is high. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated machine for inspecting automobile bodies, which features high inspection accuracy and efficiency.

[0007] The technical solution adopted in this invention is: an integrated automotive body inspection machine, including a frame and a PLC.

[0008] The frame is provided with a cooling support, a pick-up support located on the side of the cooling support, and a tilting cylinder that matches the pick-up support.

[0009] The frame is also equipped with a rotating platform and a servo gripper that matches the rotating platform;

[0010] According to the rotation direction of the rotating platform and around the perimeter of the rotating platform, the frame is sequentially fixed with a hole blockage detection device, a continuity withstand pressure detection device, a height detection device, a position detection device, a dotting device, and a material unloading station;

[0011] The integrated automotive body inspection machine also includes a material unloading module and an NG box;

[0012] as well as,

[0013] The tilting cylinder, rotating platform, servo gripper, hole blockage detection device, continuity withstand voltage detection device, height detection device, position detection device, dotting device, and unloading module are all connected to the PLC.

[0014] The continuity withstand voltage testing device is equipped with a three-window synchronous testing mechanism for simultaneous testing from three directions. Each window is equipped with a continuity cylinder, a push cylinder, and a continuity probe.

[0015] The height detection device uses a misaligned cylinder to drive a laser displacement sensor and a height probe in linkage, and calculates the height of the insert by the difference in displacement.

[0016] The advantages of this invention compared to existing technologies are higher detection accuracy and efficiency. This integrated automotive body inspection machine, through a rotating platform linked to a multi-station inspection system, achieves functions such as hole blockage detection, continuity and withstand voltage detection, insert height and position detection, and automatic sorting. Furthermore, the collaborative operation of a servo gripper, laser displacement sensor, and vision inspection module significantly improves detection accuracy and efficiency. Verification shows that the integrated design increases detection efficiency by over 200%, multi-sensor fusion detection accuracy reaches ±0.02mm, and the automatic sorting system reduces manual intervention by 90%. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a top view of an integrated automotive body inspection machine according to an embodiment of the present invention;

[0019] Figure 2 This is a perspective view of the continuity withstand voltage detection device of the present invention;

[0020] Figure 3 This is a perspective view of the height detection device of the present invention;

[0021] Figure 4 This is a perspective view of the position detection device of the present invention.

[0022] In the picture:

[0023] 10. Rack;

[0024] 21. Cooling bearing seat; 22. Bearing seat to be removed; 23. Tilting cylinder;

[0025] 30. Rotary platform; 31. Servo gripper;

[0026] 41. Hole plugging detection device; 411. Hole plugging probe; 412. Hole plugging detection cylinder; 42. Conductivity withstand pressure detection device; 421. Conductivity cylinder; 422. Push cylinder; 423. Conductivity probe; 43. Height detection device; 431. Misalignment cylinder; 432. Laser displacement sensor; 433. Height probe; 44. Position accuracy detection device; 441. Servo module; 442. Camera; 45. Dotting device; 46. Unloading station;

[0027] 50. Material feeding module. Detailed Implementation

[0028] See the example. Figure 1 As shown: an integrated machine for inspecting automotive body shells, including a frame 10 and a PLC.

[0029] Specifically:

[0030] The frame 10 is also equipped with a cooling support 21, a pick-up support 22 located on the side of the cooling support 21, and a tilting cylinder 23 that matches the pick-up support 22. That is, after the tilting cylinder 23 is activated, it pushes the component located on the cooling support 21 to tilt onto the pick-up support 22.

[0031] The frame 10 is also equipped with a rotating platform 30 and a servo gripper 31 that matches the rotating platform 30. That is, after the servo gripper 31 is activated, it will grab the part located on the pick-up support 22 and place it on the rotating platform 30.

[0032] The frame 10 is equipped with, in order of rotation direction of the rotating platform 30 and around its perimeter, a hole blockage detection device 41, a continuity and withstand voltage detection device 42, a height detection device 43, a position detection device 44, a marking device 45, and a material unloading station 46. That is, after the rotating platform 30 rotates, the components located on it pass sequentially through the stations of the hole blockage detection device 41, the continuity and withstand voltage detection device 42, the height detection device 43, the position detection device 44, the marking device 45, and the material unloading station 46.

[0033] The hole blockage detection device 41 includes a hole blockage probe 411 and a hole blockage detection cylinder 412 that actuates it. After the hole blockage detection cylinder 412 is actuated, the hole blockage probe 411 penetrates into the corresponding housing hole to determine whether the housing hole is blocked.

[0034] Combination Figure 2 As shown, the continuity and withstand voltage testing device 42 is equipped with a three-window synchronous testing mechanism for simultaneous testing from three directions, such as above, left, and right of the component to be tested. Each window is equipped with a continuity cylinder 421, a push cylinder 422, and a continuity probe 423. That is, the continuity probe 423 is fixed to the telescopic head of the continuity cylinder 421, the cylinder body of the continuity cylinder 421 is fixed to the telescopic head of the push cylinder 422, and the telescopic directions of the continuity cylinder 421 and the push cylinder 422 are not parallel, thereby allowing the continuity probe 423 to move in a two-dimensional direction. The three windows synchronously advance the continuity probe 423 to test the continuity and withstand voltage performance of the insert. As an optimization, the three-window synchronous testing mechanism achieves millisecond-level error control through a time synchronization circuit.

[0035] Combination Figure 3As shown, the height detection device 43 includes a misalignment cylinder 431, a laser displacement sensor 432 and a height probe 433 that are powered by the misalignment cylinder 431. That is, the misalignment cylinder 431 drives the laser displacement sensor 432 and the height probe 433 in a linkage manner, and the insertion plate height is calculated by the displacement difference. In actual use, the calculation method used is as follows: if the sensor's output voltage V is linearly related to the displacement X, the expression is V = kx + V0. Where V is the sensor's output voltage value (unit: V), X is the measured displacement (unit: mm, m, etc.), K is the sensor's sensitivity (unit: V / mm or V / m), which represents the change in output voltage corresponding to a unit displacement, and V0 is the zero-point output voltage, that is, the sensor's output voltage when displacement X = 0. The displacement calculation formula is then derived. Given that the sensitivity of a linear displacement sensor is K = 0.5 V / mm and the zero-point output voltage V0 = 1 V, when the measured output voltage V = 6 V, the displacement can be calculated using the formula. Combination Figure 4 As shown, the position detection device 44 can employ various common methods. In this embodiment, the position detection device 44 includes multiple cameras 442 driven by a servo module 441 to capture images from multiple angles. The image information collected by the cameras 442 is used to determine the insertion piece position deviation through visual analysis. The visual analysis can employ various common analysis algorithms and logics.

[0036] The marking device 45 is a commonly used component, used to mark qualified products according to instructions. It can be laser marking or a mechanical imprinting device.

[0037] The feeding station 46 is mainly used for sorting qualified products and NG products.

[0038] The integrated automotive body inspection machine also includes a feeding module 50 and an NG bin. The feeding module 50 can be a common device with a robotic arm as its core component, which sorts products to a conveyor belt or NG bin based on the inspection results.

[0039] More specifically:

[0040] The tilting cylinder 23, rotating platform 30, servo gripper 31, hole blockage detection device 41, continuity withstand voltage detection device 42, height detection device 43, position detection device 44, marking device 45, and unloading module 50 are all connected to the PLC. That is, the aforementioned modules and devices are coordinated and controlled by the PLC to automate the detection process.

[0041] The operation process of this invention:

[0042] 1) Feeding and cooling:

[0043] A robot (separately configured) places the injection-molded product on the cooling support 21 for cooling and shaping. After completion, the tilting cylinder 23 flips the product to the receiving support 22.

[0044] 2) Rotary platform transfer:

[0045] The servo gripper 31 picks up the product and places it onto the rotating platform 30, which then sequentially transfers it to each inspection station.

[0046] Hole plugging detection: Hole plugging probe 411 is inserted into the hole to determine whether it is blocked;

[0047] Continuity and withstand voltage test: The three-window continuity probe 423 synchronously contacts the insert to test the continuity resistance and withstand voltage performance;

[0048] Height detection: Laser displacement sensor 432 calculates the height of the insert;

[0049] Position detection: Camera 442 captures images of the insert, and the vision system analyzes the position deviation. The vision system is integrated into the PLC.

[0050] Marking: After the qualified products are marked, they enter the unloading station 46.

[0051] 3) Sorting and Packaging:

[0052] The feeding module 50 transfers qualified products to the conveyor belt for manual packaging; NG products are directly thrown into the NG box.

[0053] The technical effects of this invention, as tested in practice, are as follows:

[0054] 1) Efficiency improvement: A single machine can complete the entire process of inspection, reducing the cycle time to 30 seconds per piece;

[0055] 2) Accuracy Guarantee: The laser displacement sensor and vision system form a closed-loop cooperation, achieving a detection accuracy of ±0.02mm;

[0056] 3) High degree of automation: PLC control enables unmanned sorting, reducing manual intervention by 90%.

[0057] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An integrated machine for inspecting automobile shells, comprising a frame (10) and a PLC, characterized in that: The frame (10) is provided with a cooling support (21), a pick-up support (22) located on the side of the cooling support (21), and a tilting cylinder (23) that matches the pick-up support (22); The frame (10) is also provided with a rotating platform (30) and a servo gripper (31) that matches the rotating platform (30); According to the rotation direction of the rotating platform (30) and around the perimeter of the rotating platform (30), the frame (10) is sequentially fixed with a hole blockage detection device (41), a continuity withstand voltage detection device (42), a height detection device (43), a position detection device (44), a dotting device (45), and a material unloading station (46). The integrated automotive body inspection machine also includes a material unloading module (50) and an NG box; as well as, The tilting cylinder (23), rotating platform (30), servo gripper (31), hole blockage detection device (41), continuity withstand voltage detection device (42), height detection device (43), position detection device (44), dotting device (45), and unloading module (50) are all connected to the PLC.

2. The integrated automotive body inspection machine according to claim 1, characterized in that: The continuity withstand voltage testing device (42) is equipped with a three-window synchronous testing mechanism for simultaneous testing from three directions. Each window is equipped with a continuity cylinder (421), a push cylinder (422), and a continuity probe (423).

3. The integrated automotive body inspection machine according to claim 1, characterized in that: The height detection device (43) uses a misaligned cylinder (431) to drive the laser displacement sensor (432) and the height probe (433) to work together, and calculates the height of the insert by the difference in displacement.

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