Bolt detection device for automobile fastener

Abstract

The utility model discloses a bolt detection device for an automobile fastener, which comprises a detection frame and a rotating ring, the rotating ring is rotatably connected to the center of the surface of a lifting plate, the top end of a lifting block on one side of the rotating ring is fixedly connected with a pressure sensor, two sides of the top end of the rotating ring are provided with top grooves, and the inner sides of the top grooves are slidably connected with extrusion blocks. The surface of the rotating ring at the edge of the top groove is provided with scale marks, and the surface of the transverse plate right above the scale marks penetrates through and is fixedly connected with a camera; the left and right inner side walls of the rotating ring penetrate through and are slidably connected with connecting rods, and the ends, located on the inner side of the rotating ring, of the connecting rods are fixedly connected with top clamping blocks. According to the utility model, the rotating ring is arranged to drive the nut to descend and move along the surface of the bolt, the pressure state is detected in real time through the pressure sensor, and if the pressure is suddenly reduced or increased, the screw groove on the surface of the bolt has an error, so that the judgment is completed, and the detection accuracy is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener detection technical field, concretely is a bolt detection device for automobile fastener. BACKGROUND

[0002] Fastener, as indispensable one kind of parts in mechanical connection, wherein, bolt is one of the most common fasteners in automobile fastening, it bears the important task of connecting each part of the automobile, in the process of automobile manufacturing and maintenance, the quality of bolt is directly related to the safety and reliability of the whole vehicle. Once the bolt has quality problems, such as missing thread structure, insufficient perpendicularity, etc., it may lead to unfirm connection of parts, and further affect the driving safety, and pose a serious threat to the life safety and health of the driver, therefore, it will be detected in production.

[0003] The traditional detection method depends on artificial visual inspection or simple tool measurement, has strong subjectivity, low efficiency and easy to miss detection problems, is easy to cause misjudgment, and most devices cannot detect the thread accuracy and perpendicularity of the bolt synchronously, need step-by-step operation, leading to complicated detection process. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a bolt detection device for automobile fastener, solves the problems of strong subjectivity, low efficiency and easy to miss detection in the traditional detection method, easy to cause misjudgment, and most devices cannot detect the thread accuracy and perpendicularity of the bolt synchronously, need step-by-step operation, leading to complicated detection process.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a bolt detection device for automobile fastener, including detection frame and rotation ring, the rotation ring rotation is connected in the surface center of the lifting plate, the lifting block top end fixed connection has pressure sensor in the rotation ring one side, the top of rotation ring both sides is equipped with the top groove, the inside of top groove is connected with extrusion block, the rotation ring surface is equipped with scale line in the edge of top groove, the surface of horizontal plate is fixedly connected with camera and penetrates in the scale line directly above, the left and right inner side wall of rotation ring is connected with connecting rod and penetrates and slides, and the one end of connecting rod fixedly connected with top clamping block in the inner side of rotation ring.

[0006] In the technical scheme, the nut matched with the bolt is driven to descend by the rotating ring, and moves along the surface of the bolt, in the descending process, the pressure sensor is pressed by the upper transverse plate, if the bolt is stuck or difficult to descend, the pressure sensor will change, so that the staff can determine whether the bolt is qualified in time, and the detection accuracy is high, in the process that the bolt gradually penetrates the rotating ring, the two extrusion blocks are pushed to move to two sides, whether the bolt is perpendicular can be determined according to whether the scale lines corresponding to the two extrusion blocks are consistent, the two-dimensional evaluation of the thread quality and the installation perpendicularity is completed synchronously in single detection, and the detection efficiency and the accuracy of comprehensive determination are greatly improved.

[0007] Preferably, the inner bottom surface of the detection frame is provided with a bottom groove, a first bidirectional screw rod is rotationally connected to the inner side of the bottom groove, one end of the first bidirectional screw rod is fixedly connected with the tail end of the transmission shaft of the servo motor fixedly connected to the outer side of the detection frame, two threaded blocks are penetrated through the surface of the first bidirectional screw rod and are threadedly connected with the threaded blocks, the top end of each threaded block is fixedly connected with a cross rod, and the cross rod is fixedly connected with a bottom clamping block at the end close to the center of the detection frame.

[0008] In the technical scheme, the servo motor drives the first bidirectional screw rod to rotate, and the positions of the two bottom clamping blocks are adjusted until the bottom end of the bolt is clamped, so that the stability of the bolt in the detection process is ensured.

[0009] Preferably, the top end of the detection frame is fixedly connected with an electric push rod, the telescopic end of the electric push rod penetrates through the top surface of the detection frame and is fixedly connected with the transverse plate, and the bottom sides of the transverse plate are fixedly connected with limiting rods.

[0010] In the technical scheme, the electric push rod drives the transverse plate and the lifting plate to descend, and the transverse plate moves downward with the limiting rods in the descending process until the pressure sensor on the surface of the lifting plate is contacted, so that pressure data is generated.

[0011] Preferably, the outer side wall of the rotating ring is fixedly connected with an adjusting frame, a second bidirectional screw rod is rotationally connected to the inner side of the adjusting frame, two adjusting blocks are penetrated through the surface of the second bidirectional screw rod and are threadedly connected with the adjusting blocks, and one end of each adjusting block is fixedly connected with the connecting rod outside the rotating ring.

[0012] In the technical scheme, one end of the second bidirectional screw rod is located outside the adjusting frame and is provided with a torsion block convenient for rotation, and the positions of the two adjusting blocks and the top clamping block are adjusted after rotation.

[0013] Preferably, the top end opening of the top clamping block is fixedly connected with a baffle, and an extrusion spring is fixedly connected between the inner side walls of the extrusion block and the top groove.

[0014] In the technical scheme, the baffle can limit the top of the nut, avoiding separation from the two top clamping blocks during the descending process, and the extrusion spring can make the extrusion block tightly contact the surface of the bolt.

[0015] Preferably, two slide rods are fixedly connected between the upper and lower inner walls of the detection frame, the two slide rods are respectively located at the left and right side edges of the detection frame, and the slide rods penetrate through the lifting plate and are in sliding connection with the lifting plate.

[0016] In the technical scheme, the slide rods play a role in limiting the lifting plate, so that the lifting plate remains stable during the lifting process.

[0017] Compared with the prior art, the utility model has the beneficial effects as follows:

[0018] 1. The utility model discloses a rotating ring and pressure sensor synergies realize the dynamic monitoring of the bolt thread state. When the nut moves along the bolt helical trajectory, the pressure sensor real -time acquisition contact pressure data, through the analysis pressure curve's sudden change point, can accurately identify the screw groove defect, pitch deviation and so on, significantly improve the degree of automation of detection and result reliability.

[0019] 2. The utility model discloses a rotating ring is provided with extrusion block, when the bolt passes through the rotating ring, both sides extrusion block are displaced to the outside by the thrust, through the comparison scale line displacement and preset threshold value, can fast judge the bolt axis skew degree, thereby the double -dimensional evaluation of thread quality and installation perpendicularity is completed simultaneously in single detection, and the detection efficiency and the accuracy of comprehensive determination are improved greatly. DRAWINGS

[0020] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non - limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 It is the overall view of the utility model;

[0022] Figure 2 It is the cross section structure schematic view of the utility model;

[0023] Figure 3 It is the rotating ring overhead structure schematic view of the utility model;

[0024] Figure 4 It is the rotating ring bottom structure schematic view of the utility model.

[0025] In the figure: 1, detection frame; 2, bottom groove; 201, No. One bidirectional screw rod; 202, threaded block; 203, cross bar; 204, servo motor; 3, bottom clamp block; 4, slide rod; 5, electric push rod; 6, cross plate; 7, limiting rod; 8, lifting plate; 9, rotating ring; 10, pressure sensor; 11, top groove; 111, extrusion spring; 112, extrusion block; 113, scale line; 114, camera; 12, adjusting frame; 121, No. Two bidirectional screw rod; 122, adjusting block; 123, connecting rod; 13, top clamp block; 131, baffle. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following further elaborates in combination with specific embodiments.

[0027] A bolt detection device for automobile fastener, see Figures 1 to 4 , including detection frame 1 and rotating ring 9, rotating ring 9 is rotatably connected in the surface center of lifting plate 8, the top end of lifting block on one side of rotating ring 9 is fixedly connected with pressure sensor 10, when detecting, rotating ring 9 drives the nut matched with bolt to descend, moves along the surface of bolt, at this time, pressure sensor 10 will produce extrusion data, according to the extrusion data to assist in judging, the outer side wall of rotating ring 9 is fixedly connected with adjusting frame 12, the inner side of adjusting frame 12 is rotatably connected with No. Two bidirectional screw rod 121, two adjusting blocks 122 are penetrated through the surface of No. Two bidirectional screw rod 121 and are threadedly connected with adjusting blocks 122, one end of adjusting block 122 and connecting rod 123 located outside rotating ring 9 is fixedly connected, connecting rod 123 is slidably connected and penetrated through the left and right inner side walls of rotating ring 9, one end of connecting rod 123 located inside rotating ring 9 is fixedly connected with top clamp block 13, the top end opening of top clamp block 13 is fixedly connected with baffle 131, baffle 131 can limit the top of nut, avoid separating from two top clamp blocks 13 in the descending process, bolt is fixed between two top clamp blocks 13, in the descending process, bolt will rotate with the whole rotating ring 9, once encountering jamming, setback and other conditions, the data of pressure sensor 10 will change, thereby assisting workers to judge the quality condition of bolt, the accuracy of detection result is higher.

[0028] It should be noted that before detection, the nut has been pre-sleeved on the top end of the nut, after the bolt is fixed, first adjust the height of lifting plate 8, make two top clamp blocks 13 inside rotating ring 9 reach the two sides of nut, at this time, adjust top clamp block 13 to clamp the nut, so as to avoid that the nut separates from bolt and directly descends, which leads to the failure to align the screw line on the surface of bolt.

[0029] Specifically, as Figure 2As shown, the top end of the detection frame 1 is fixedly connected with an electric push rod 5, the telescopic end of the electric push rod 5 penetrates the top end surface of the detection frame 1 and is fixedly connected with a horizontal plate 6, the electric push rod 5 drives the horizontal plate 6 and the lifting plate 8 to descend, in the process of pushing the nut to descend, the horizontal plate 6 will move downward and contact the pressure sensor 10, so as to detect the pressure; the bottom of the horizontal plate 6 is fixedly connected with a limiting rod 7 on both sides, the bottom end of the limiting rod 7 penetrates the surface of the lifting plate 8 and is slidingly connected with the lifting plate 8, and the surface of the limiting rod 7 is sleeved with a spring, which facilitates pushing the horizontal plate 6 away from the pressure sensor 10 after detection.

[0030] At the same time, as shown in the figure, Figure 3 the top end of the rotating ring 9 is provided with a top groove 11 on both sides, the inner side of the top groove 11 is slidingly connected with an extrusion block 112, the extrusion block 112 and the inner side wall of the top groove 11 are fixedly connected with an extrusion spring 111, the surface of the rotating ring 9 at the edge of the top groove 11 is provided with a scale line 113, and the surface of the horizontal plate 6 above the scale line 113 is penetrated and fixedly connected with a camera 114, in the detection process, the bolt gradually penetrates the rotating ring 9, thereby pushing the extrusion block 112 to slide to both sides, and the data of the scale line 113 corresponding to the two extrusion blocks 112 is observed by the camera 114, so that the two-dimensional evaluation of the thread quality and the installation perpendicularity is simultaneously completed in a single detection, and the detection efficiency and the accuracy of comprehensive judgment are greatly improved.

[0031] Further, as shown in the figure, Figure 2 the inner bottom surface of the detection frame 1 is provided with a bottom groove 2, the inner side of the bottom groove 2 is rotatably connected with a first bidirectional screw rod 201, one end of the first bidirectional screw rod 201 is fixedly connected with the transmission shaft tail end of a servo motor 204 fixedly connected outside the detection frame 1, the surface of the first bidirectional screw rod 201 penetrates two threaded blocks 202 and is threadedly connected with the threaded blocks 202, the top end of the threaded block 202 is fixedly connected with a cross rod 203, and the cross rod 203 is fixedly connected with a bottom clamping block 3 at the end towards the center of the detection frame 1, in the detection, the bolt is placed between the two bottom clamping blocks 3, the servo motor 204 is started to drive the first bidirectional screw rod 201 to rotate, and the two bottom clamping blocks 3 are clamped to hold the bolt in the rotating process, so that the stability in the detection process is ensured.

[0032] It is worth mentioning that, as shown in the figure, Figure 1 two slide rods 4 are fixedly connected between the upper and lower inner walls of the detection frame 1, the two slide rods 4 are respectively located at the left and right side edges of the detection frame 1, and the slide rods 4 penetrate and are slidingly connected with the lifting plate 8, so that the slide rods 4 play a role in limiting the lifting plate 8, and the lifting plate 8 remains stable in the lifting process.

[0033] In addition, the components designed in the utility model are all general standard components or components known by the person skilled in the art, the structure and principle of which can be known by the person skilled in the art through a technical manual or through a conventional experimental method, and the person skilled in the art can completely realize without redundancy, and the content protected by the utility model does not involve improvement of internal structure and method.

[0034] The utility model discloses the embodiment discloses the preferable embodiment, but is not limited to this, and the person skilled in the art, the person skilled in the art, very easily according to the above -mentioned embodiment, the spirit of the utility model is appreciated, and different is drawn and changes, but as long as not departing from the spirit of the utility model, all are in the protection scope of the utility model.

Claims

1. A bolt inspection device for automotive fasteners, comprising an inspection stand (1) and a rotating ring (9), characterized in that: The rotating ring (9) is rotatably connected to the surface center of the lifting plate (8), the lifting block top end of one side of the rotating ring (9) is fixedly connected with the pressure sensor (10), the top end of the rotating ring (9) is provided with a top groove (11) on both sides, the inner side of the top groove (11) is slidably connected with the extrusion block (112), the surface of the rotating ring (9) at the edge of the top groove (11) is provided with a scale line (113), and the surface of the horizontal plate (6) above the scale line (113) is fixedly connected with a camera (114) penetrating through.

2. The bolt inspection apparatus for automotive fasteners according to claim 1, characterized by: The inner bottom surface of the detection frame (1) is provided with a bottom groove (2), the inner side of the bottom groove (2) is rotatably connected with a first bidirectional screw rod (201), one end of the first bidirectional screw rod (201) is fixedly connected with the transmission shaft tail end of the servo motor (204) fixedly connected outside the detection frame (1), the surface of the first bidirectional screw rod (201) penetrates two threaded blocks (202) and is threadedly connected with the threaded blocks (202), the top end of the threaded block (202) is fixedly connected with a cross rod (203), and one end of the cross rod (203) towards the center of the detection frame (1) is fixedly connected with a bottom clamping block (3).

3. The bolt inspection apparatus for automotive fasteners according to claim 1, characterized by: The top end of the detection frame (1) is fixedly connected with an electric push rod (5), the telescopic end of the electric push rod (5) penetrates the top surface of the detection frame (1) and is fixedly connected with a horizontal plate (6), the bottom of the horizontal plate (6) is fixedly connected with a limiting rod (7) on both sides, and the bottom end of the limiting rod (7) penetrates the surface of the lifting plate (8) and is slidably connected with the lifting plate (8).

4. The bolt inspection apparatus for automotive fasteners according to claim 1, characterized by: The outer wall of the rotating ring (9) is fixedly connected with an adjusting frame (12), the inner side of the adjusting frame (12) is rotatably connected with a second bidirectional screw rod (121), the surface of the second bidirectional screw rod (121) penetrates two adjusting blocks (122) and is threadedly connected with the adjusting blocks (122), and one end of the adjusting block (122) and the connecting rod (123) outside the rotating ring (9) is fixedly connected.

5. The bolt inspection apparatus for automotive fasteners of claim 1, wherein: The top end opening of the top clamping block (13) is fixedly connected with a baffle (131), and the inner wall between the extrusion block (112) and the top groove (11) is fixedly connected with an extrusion spring (111).

6. The bolt inspection apparatus for automotive fasteners of claim 1, wherein: Two slide rods (4) are fixedly connected between the upper and lower inner walls of the detection frame (1), two slide rods (4) are respectively located at the left and right side edges of the detection frame (1), and the slide rod (4) penetrates the lifting plate (8) and is slidably connected with the lifting plate (8).

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