Full-automatic detection machine for inner diameter of air bag tube

Abstract

The utility model relates to the technical field of airbag tube production, in particular to a full-automatic detection machine for the inner diameter of an airbag tube. A first bearing mechanism, a second bearing mechanism and a third bearing mechanism are sequentially arranged on the upper side of the bottom plate, each of the first bearing mechanism, the second bearing mechanism and the third bearing mechanism is composed of two end bearing frames, and each end bearing frame is composed of two rolling wheels. A scrap iron removing mechanism, an inner diameter detecting mechanism and an axial length measuring mechanism are sequentially arranged on the upper side of the bottom plate. According to the utility model, the two height sensors extend into the air bag tube and are far away from each other until the height sensors are in contact with the inner wall of the air bag tube, so that the upper and lower limit heights of the inner wall of the air bag tube can be measured, and whether the inner diameter of the air bag tube is qualified or not can be judged; the two height sensors measure the upper and lower limit heights of different positions of the inner wall of the air bag pipe, and the accuracy of the inner diameter detection result can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air bag tube production, in particular to a full-automatic detection machine for the inner diameter of an air bag tube. Background Art

[0002] Airbag tubes are an indispensable part of automotive components and a crucial component of vehicle safety. Currently, during the production process, airbag tubes undergo rigorous testing, including testing of the tube's inner diameter and axial length.

[0003] Currently, the inspection method for automobile airbag tubes is generally manual visual inspection, that is, manual measurement and screening of automobile airbag tubes one by one using tools. This type of inspection method has major drawbacks: first, low operating efficiency, requiring a large number of employees, which is not conducive to industrial production and cost reduction; second, high quality risk, and uneven quality among employees, resulting in many defective products not being detected, or detected but not screened out, resulting in unsafe use of automobiles and accidents. In view of this, we propose a fully automatic airbag tube inner diameter inspection machine. Utility Model Content

[0004] The purpose of the present invention is to provide a fully automatic detection machine for the inner diameter of an airbag tube, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, one of the objects of the present utility model is to provide a fully automatic detection machine for the inner diameter of an airbag tube, comprising a base plate, wherein a first receiving mechanism, a second receiving mechanism and a third receiving mechanism are sequentially arranged on the upper side of the base plate, wherein the first receiving mechanism, the second receiving mechanism and the third receiving mechanism are each composed of two end receiving frames, and each end receiving frame is composed of two rollers, and the rollers are rotatably arranged on the upper side of the base plate, and an iron chip removal mechanism, an inner diameter detection mechanism and an axial length measurement mechanism are sequentially arranged on the upper side of the base plate, and the first receiving mechanism, the second receiving mechanism and the third receiving mechanism correspond to the iron chip removal mechanism, the inner diameter detection mechanism and the axial length measurement mechanism respectively according to the order of arrangement, The first receiving mechanism, the second receiving mechanism and the third receiving mechanism all receive the airbag tube, and a conveying mechanism is provided on the base plate, and the conveying mechanism is provided between the two end receiving frames in the receiving mechanism, and the conveying mechanism is used to drive the airbag tube to move between the first receiving mechanism, the second receiving mechanism and the third receiving mechanism, and the inner diameter detection mechanism includes a second cylinder fixedly connected to the upper surface of the base plate, the lower end of the piston rod of the second cylinder is fixedly connected to the mounting plate, and the lower surface of the mounting plate is fixedly connected to a dual-axis motor, and the two output shafts of the dual-axis motor are coaxially fixedly connected to the rubber wheel, and when the conveying mechanism drives the airbag tube to move to the second receiving mechanism, the rubber wheel is located directly above the airbag tube.

[0006] As a further improvement of the present technical solution, the inner diameter detection mechanism also includes a first cylinder fixedly connected to the upper surface of the base plate, and a parallel finger cylinder is fixedly connected to the piston rod of the first cylinder through a connecting strip. The parallel finger cylinder is provided with two clamping rods with adjustable spacing, and the two clamping rods of the parallel finger cylinder are fixedly connected to a height sensor on the side away from each other.

[0007] As a further improvement of the present technical solution, the iron chip removal mechanism includes a third cylinder, a guide rail and a baffle fixedly connected to the upper surface of the base plate. A dredging roller is fixedly connected to the piston rod of the third cylinder. The dredging roller is in sliding contact with the upper surface of the guide rail. The baffle and guide rail are respectively located on both sides of the roller. When the piston rod of the first cylinder contracts and drives the dredging roller to move horizontally, the other end of the dredging roller is inserted into the inside of the airbag tube placed on the first supporting mechanism.

[0008] As a further improvement of the present technical solution, the axial length measuring mechanism includes two fourth cylinders fixedly connected to the upper surface of the base plate, the piston rods of the fourth cylinders are fixedly connected to a stand, and the two stands are fixedly connected to an infrared emitting end and an infrared receiving end on the sides close to each other, respectively, and the infrared emitting end and the infrared receiving end are respectively located on both sides of the roller.

[0009] As a further improvement of the present technical solution, the conveying mechanism includes a fifth cylinder fixedly connected to the upper surface of the base plate, a movable plate fixedly connected to the piston rod of the fifth cylinder, and the movable plate is slidably arranged on the upper surface of the base plate, a sixth cylinder fixedly connected to the upper surface of the movable plate, and the upper end of the piston rod of the sixth cylinder fixedly connected to a support plate, and two arc grooves are provided on the upper surface of the support plate, and the spacing between the two arc grooves is the same as the spacing between the two groups of receiving mechanisms.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This fully automatic airbag tube inner diameter inspection machine uses two height sensors to measure the upper and lower limit heights of the airbag tube's inner wall to determine whether the airbag tube's inner diameter is qualified. By rotating and adjusting the position of the airbag tube, the two height sensors measure the upper and lower limit heights of the airbag tube's inner wall at different positions, which can improve the accuracy of the inner diameter inspection results.

[0012] 2. This fully automatic airbag tube inner diameter inspection machine allows the dredging roller to move inside the airbag tube. The dredging roller can scrape off iron filings attached to the inner wall of the airbag tube. When the dredging roller passes through the channel on the baffle, the dredging roller cleans the iron filings to the outside of the airbag tube, thereby quickly cleaning the iron filings on the inner wall of the airbag tube and improving the accuracy of the airbag tube inner diameter inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the conveying mechanism of the present utility model;

[0015] Figure 3 This is a structural diagram of the inner diameter detection mechanism of the utility model;

[0016] Figure 4 This is a schematic structural diagram of the iron chip removal mechanism of the present invention;

[0017] Figure 5 It is a structural schematic diagram of the axial length measuring mechanism of the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Bottom plate; 11. Roller;

[0020] 2. Inner diameter detection mechanism; 21. First cylinder; 22. Parallel finger cylinder; 23. Height sensor; 24. Second cylinder; 25. Mounting plate; 26. Dual-axis motor; 27. Rubber wheel;

[0021] 3. Chip removal mechanism; 31. Third cylinder; 32. Dredging roller; 33. Guide rail; 34. Baffle;

[0022] 4. Axial length measuring mechanism; 41. Fourth cylinder; 42. Stand; 43. Infrared transmitter; 44. Infrared receiver;

[0023] 5. Conveying mechanism; 51. Fifth cylinder; 52. Moving plate; 53. Sixth cylinder; 54. Support plate; 55. Arc groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1As shown, one of the purposes of this embodiment is to provide a fully automatic detection machine for the inner diameter of an airbag tube. The upper side of the base plate 1 is sequentially provided with a first receiving mechanism, a second receiving mechanism and a third receiving mechanism. The first receiving mechanism, the second receiving mechanism and the third receiving mechanism are each composed of two end receiving frames, and each end receiving frame is composed of two rollers 11. The rollers 11 are rotatably arranged on the upper side of the base plate 1. The upper side of the base plate 1 is sequentially provided with an iron chip removal mechanism 3, an inner diameter detection mechanism 2 and an axial length measurement mechanism 4. The first receiving mechanism, the second receiving mechanism and the third receiving mechanism correspond to the iron chip removal mechanism 3, the inner diameter detection mechanism 2 and the axial length measurement mechanism 4 according to the order of arrangement. By placing the two ends of the airbag tube on the two end receiving frames respectively, the airbag tube can be By contacting the circumferential side walls of the two rollers 11 of the end receiving frame, the purpose of enabling the first receiving mechanism, the second receiving mechanism and the third receiving mechanism to receive the airbag tube can be achieved. The iron filings removing mechanism 3 is used to clean the iron filings on the inner wall of the airbag tube placed on the first receiving mechanism to prevent the iron filings on the inner wall of the airbag tube from affecting the accuracy of detecting the inner diameter of the airbag tube. After the iron filings on the inner wall of the airbag tube are cleaned, the airbag tube is transferred to the second receiving mechanism, and the inner diameter of the airbag tube is detected by the inner diameter detection mechanism 2 to see whether it is qualified. When the inner diameter of the airbag tube is detected to be qualified, the airbag tube is transferred to the third receiving mechanism, and the axial length of the airbag tube is measured by the axial length measuring mechanism 4, thereby realizing one-stop detection of the inner diameter of the airbag tube and improving the detection efficiency and the accuracy of the detection results.

[0027] The structure of the iron chip removal mechanism 3 is detailed below. Figure 4 The chip removing mechanism 3 includes a third cylinder 31, a guide rail 33 and a baffle 34 fixedly connected to the upper surface of the bottom plate 1. The piston rod of the third cylinder 31 is fixedly connected to a dredging roller 32. The dredging roller 32 is in sliding contact with the upper surface of the guide rail 33. The baffle 34 and the guide rail 33 are respectively located on both sides of the roller 11. When the piston rod of the third cylinder 31 contracts and drives the dredging roller 32 to move horizontally, the other end of the dredging roller 32 is inserted into the inside of the airbag tube placed on the first receiving mechanism. The specific operation is: after the airbag tube is placed on the first receiving mechanism, one end of the airbag tube is in contact with the baffle. 34 contacts and starts the third cylinder 31. The piston rod of the third cylinder 31 contracts and drives the dredging roller 32 to move horizontally along the upper surface of the guide rail 33. The moving dredging roller 32 is inserted into the interior of the airbag tube. The outer wall of the dredging roller 32 contacts the inner wall of the airbag tube. The dredging roller 32 scrapes off the iron filings attached to the inner wall of the airbag tube while moving inside the airbag tube. A channel is opened on the baffle 34. When the dredging roller 32 passes through the channel, the dredging roller 32 cleans the iron filings to the outside of the airbag tube, thereby realizing rapid cleaning of the iron filings on the inner wall of the airbag tube and improving the accuracy of detecting the inner diameter of the airbag tube.

[0028] In order to facilitate the transfer of the airbag tube after cleaning the iron filings to the second receiving mechanism for inner diameter detection, a conveying mechanism 5 is set on the bottom plate 1. The conveying mechanism 5 is set between the two end receiving frames in the receiving mechanism. The conveying mechanism 5 is used to drive the airbag tube to move between the first receiving mechanism, the second receiving mechanism and the third receiving mechanism. The structure of the conveying mechanism 5 is detailed below. Figure 2 The conveying mechanism 5 includes a fifth cylinder 51 fixedly connected to the upper surface of the base plate 1, and a movable plate 52 is fixedly connected to the piston rod of the fifth cylinder 51, and the movable plate 52 is slidably set on the upper surface of the base plate 1, and a sixth cylinder 53 is fixedly connected to the upper surface of the movable plate 52, and the upper end of the piston rod of the sixth cylinder 53 is fixedly connected to a supporting plate 54, and two arc grooves 55 are provided on the upper surface of the supporting plate 54. The spacing between the two arc grooves 55 is the same as the spacing between the two groups of receiving mechanisms. When the dredging roller 32 cleans the iron filings on the inner wall of the airbag tube, the arc groove 55 close to the dredging roller 32 is located directly below the airbag tube. When the airbag tube needs to be transferred from the first receiving mechanism to the second receiving mechanism, the first receiving mechanism is activated. Six cylinders 53, the piston rod of the sixth cylinder 53 extends to drive the support plate 54 to move vertically upward. When the inner wall of the arc-shaped groove 55 of the support plate 54 contacts the airbag tube, the support plate 54 lifts the airbag tube upward. When the airbag tube moves to above the roller 11, the fifth cylinder 51 is started to make the piston rod of the fifth cylinder 51 contract to drive the support plate 54 to move horizontally. The moving support plate 54 drives the airbag tube to move synchronously. When the airbag tube moves to above the second receiving mechanism, the piston rod of the sixth cylinder 53 contracts to drive the support plate 54 to move vertically downward, and the airbag tube can be placed on the second receiving mechanism. There is no need for workers to manually transfer the position of the airbag tube, which improves the efficiency of detecting the inner diameter of the airbag tube.

[0029] The structure of the inner diameter detection mechanism 2 is detailed below. Figure 3The inner diameter detection mechanism 2 includes a first cylinder 21 fixedly connected to the upper surface of the base plate 1, and a parallel finger cylinder 22 is fixedly connected to the piston rod of the first cylinder 21 through a connecting strip. The parallel finger cylinder 22 is provided with two clamping rods with adjustable spacing. The two clamping rods of the parallel finger cylinder 22 are fixedly connected to a height sensor 23 on the side away from each other. The height sensor 23 is externally connected to a PLC device. After the airbag tube after cleaning the iron filings is placed on the second receiving mechanism, the clamping rod and the height sensor 23 are located on one side of the airbag tube, and the first cylinder 21 is started, so that the piston rod of the first cylinder 21 drives the parallel finger cylinder 22 and the height sensor 23 to move closer. Move in the direction close to the airbag tube. When the clamping rod and height sensor 23 of the parallel finger cylinder 22 extend into the interior of the airbag tube, start the parallel finger cylinder 22 so that the two clamping rods of the parallel finger cylinder 22 respectively drive the two height sensors 23 away from each other. When the height sensor 23 contacts the inner wall of the airbag tube, the height sensor 23 sends the current height information to the PLC device. The two height sensors 23 respectively send the upper limit height and lower limit height of the inner wall of the airbag tube to the PLC device. The PLC device compares the received upper and lower limit height information with the preset upper and lower limit information to detect whether the inner diameter of the airbag tube is qualified.

[0030] When using two height sensors 23 to detect the inner diameter of the airbag tube, it is necessary to detect multiple times. Each time it is detected, the position of the airbag tube needs to be rotated and adjusted so that the two height sensors 23 can measure the upper and lower limit heights of the inner wall of the airbag tube at different positions to improve the accuracy of the detection results. In order to facilitate the rotation and adjustment of the position of the airbag tube, the inner diameter detection mechanism 2 also includes a second cylinder 24 fixedly connected to the upper surface of the base plate 1. The lower end of the piston rod of the second cylinder 24 is fixedly connected to the mounting plate 25. The lower surface of the mounting plate 25 is fixedly connected to a dual-axis motor 26. The two output shafts of the dual-axis motor 26 are coaxially fixedly connected to the rubber wheel 27. When the airbag tube is placed on the second receiving mechanism After the airbag is raised, the rubber wheel 27 is located directly above the airbag tube, and the second cylinder 24 is started, so that the piston rod of the second cylinder 24 drives the mounting plate 25, the dual-axis motor 26 and the two rubber wheels 27 to move downward. When the rubber wheel 27 contacts the side wall of the airbag tube, the dual-axis motor 26 is started, and the output shaft of the dual-axis motor 26 drives the rubber wheel 27 to rotate. The friction between the rubber wheel 27 and the airbag tube causes the rubber wheel 27 to drive the airbag tube to rotate, and the roller 11 in the second receiving mechanism rotates synchronously to facilitate the rotation and adjustment of the position of the airbag tube, so that the two height sensors 23 can measure the upper and lower limit heights of the inner wall of the airbag tube at different positions to improve the accuracy of the detection results.

[0031] When the inner diameter inspection result of the airbag tube is unqualified, the support plate 54 lifts the airbag tube upward. When the side wall of the airbag tube is at the same height as one of the clamping rods of the parallel finger cylinder 22, the airbag tube is stopped from being lifted upward, and the piston rod of the first cylinder 21 is extended to drive the parallel finger cylinder 22 to move horizontally. The moving parallel finger cylinder 22 pushes the airbag tube off the support plate 54 through the clamping rod, and an NG box is placed on the bottom plate 1. When the airbag tube is pushed off the support plate 54, it falls into the inside of the NG box, thereby realizing automatic processing of unqualified airbag tubes.

[0032] When the inner diameter test result of the airbag tube is qualified, the support plate 54 is used to transfer the airbag tube to the third receiving mechanism in the same manner, and the axial length measuring mechanism 4 can be used to measure the axial length of the airbag tube.

[0033] The structure of the axial length measuring mechanism 4 is detailed below. Figure 5 The axial length measuring mechanism 4 includes two fourth cylinders 41 fixedly connected to the upper surface of the base plate 1, and a stand 42 is fixedly connected to the piston rod of the fourth cylinder 41. The two stands 42 are fixedly connected to the side close to each other with an infrared emitting end 43 and an infrared receiving end 44. The infrared emitting end 43 and the infrared receiving end 44 are respectively located on both sides of the roller 11. After the airbag tube that has passed the inner diameter inspection is placed on the third receiving mechanism, the two fourth cylinders 41 are started synchronously. The piston rod of the fourth cylinder 41 extends to drive the stand 42 to move horizontally toward the direction close to the airbag tube. When the two stands 42 drive the infrared emitting end 43 and the infrared receiving end 44 to contact the two ends of the airbag tube respectively, the piston rod of the fourth cylinder 41 stops extending. At this time, the infrared emitting end 43 and the infrared receiving end 44 cooperate to measure the axial length of the airbag tube.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic airbag tube inner diameter detection machine, comprising a base plate (1), characterized in that: The upper side of the base plate (1) is provided with a first receiving mechanism, a second receiving mechanism and a third receiving mechanism in sequence. The first receiving mechanism, the second receiving mechanism and the third receiving mechanism are each composed of two end receiving frames, each end receiving frame is composed of two rollers (11), and the rollers (11) are rotatably arranged on the upper side of the base plate (1). The upper side of the base plate (1) is provided with an iron chip removal mechanism (3), an inner diameter detection mechanism (2) and an axial length measurement mechanism (4) in sequence. The first receiving mechanism, the second receiving mechanism and the third receiving mechanism correspond to the iron chip removal mechanism (3), the inner diameter detection mechanism (2) and the axial length measurement mechanism (4) according to the order of arrangement. The first receiving mechanism, the second receiving mechanism and the third receiving mechanism all receive the airbag tube. A conveying mechanism (5) is provided on the bottom plate (1), and the conveying mechanism (5) is provided between the two end receiving frames in the receiving mechanism. The conveying mechanism (5) is used to drive the airbag tube to move between the first receiving mechanism, the second receiving mechanism and the third receiving mechanism. The inner diameter detection mechanism (2) includes a second cylinder (24) fixedly connected to the upper surface of the bottom plate (1), the lower end of the piston rod of the second cylinder (24) is fixedly connected to the mounting plate (25), and the lower surface of the mounting plate (25) is fixedly connected to a double-axis motor (26), and the two output shafts of the double-axis motor (26) are both coaxially fixedly connected to a rubber wheel (27). When the conveying mechanism (5) drives the airbag tube to move to the second receiving mechanism, the rubber wheel (27) is located directly above the airbag tube.

2. The fully automatic airbag tube inner diameter detection machine according to claim 1, characterized in that: The inner diameter detection mechanism (2) further comprises a first cylinder (21) fixedly connected to the upper surface of the base plate (1); a parallel finger cylinder (22) is fixedly connected to the piston rod of the first cylinder (21) via a connecting strip; two clamping rods with adjustable spacing are provided on the parallel finger cylinder (22); and a height sensor (23) is fixedly connected to the sides of the two clamping rods of the parallel finger cylinder (22) that are away from each other.

3. The fully automatic airbag tube inner diameter detection machine according to claim 1, characterized in that: The iron chip removal mechanism (3) comprises a third cylinder (31) fixedly connected to the upper surface of the base plate (1), a guide rail (33) and a baffle (34); a dredging roller (32) is fixedly connected to the piston rod of the third cylinder (31); the dredging roller (32) is in sliding contact with the upper surface of the guide rail (33); the baffle (34) and the guide rail (33) are respectively located on both sides of the roller (11); when the piston rod of the third cylinder (31) contracts to drive the dredging roller (32) to move horizontally, the other end of the dredging roller (32) is inserted into the interior of the airbag tube placed on the first receiving mechanism.

4. The fully automatic airbag tube inner diameter inspection machine according to claim 1, characterized in that: The axial length measuring mechanism (4) comprises two fourth cylinders (41) fixedly connected to the upper surface of the base plate (1); a stand (42) is fixedly connected to the piston rod of the fourth cylinder (41); an infrared emitting end (43) and an infrared receiving end (44) are fixedly connected to the sides of the two stands (42) close to each other; the infrared emitting end (43) and the infrared receiving end (44) are respectively located on both sides of the roller (11).

5. The fully automatic airbag tube inner diameter inspection machine according to claim 1, characterized in that: The conveying mechanism (5) comprises a fifth cylinder (51) fixedly connected to the upper surface of the base plate (1); a movable plate (52) is fixedly connected to the piston rod of the fifth cylinder (51), and the movable plate (52) is slidably arranged on the upper surface of the base plate (1); a sixth cylinder (53) is fixedly connected to the upper surface of the movable plate (52); the upper end of the piston rod of the sixth cylinder (53) is fixedly connected to a supporting plate (54); two arc grooves (55) are provided on the upper surface of the supporting plate (54); and the spacing between the two arc grooves (55) is the same as the spacing between the two groups of receiving mechanisms.

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