Automobile part nut installation detection equipment

Abstract

The invention belongs to the technical field of nut installation and detection, and discloses an automobile part nut installation and detection device, which comprises a detection box body, the bottom of the detection box body is fixedly connected with a detection box base, and one side of the bottom of the detection box base is provided with a rotating groove. The first nut is in threaded fit with the screw in the rotating process so as to be tightened, the first nut slides in the detection block in the tightening process so as to be far away from the bottom surface of the fixed block, and when the first nut is completely tightened, the top block is ejected out by the spring, so that the bottom surface of the top block is connected with the top surface of the first nut, and the detection accuracy is improved. Through observation of the transparent observation plate, whether the height of the top surface of the first nut is the same as the height of the preset detection indication strip and whether the top block pops up is detected, and the situation that the nut cannot be installed in place due to too large torque in the installation process is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of nut installation detection, and specifically relates to a nut installation detection device for automobile spare parts. Background Technique

[0002] Nut installation detection is a key quality control process, which ensures that the installation position and tightening degree of nuts in mechanical equipment meet the technical requirements. A variety of technical means and methods are involved in this process to ensure the reliability of the connection and the safety of the equipment.

[0003] However, there are often some problems in the actual use of existing nut installation detection devices for automobile spare parts: First, during the installation of nuts, the bolt needs to pass through the through holes on two parts and be tightened with the nut to achieve assembly. Therefore, whether the installation position accuracy of the nut on the part is qualified directly affects the overall accuracy after assembly. When installing the nut, its perpendicularity, torque, and wear will all affect the installation quality. In the traditional nut installation process, whether the nut is tightened is mainly determined by the torque measured by the torque sensor. In the actual installation process, there will be a situation where the nut and the bolt are misaligned during the screwing process because they are not screwed in vertically, resulting in the nut not being installed in place due to excessive torque. However, if the torque detected by the torque sensor is within the qualified range, it will be determined that the nut has been tightened, resulting in an error, which will reduce the load-bearing capacity between the threads and further reduce the stability and safety of the connection. Second, the perpendicularity of the nut is not detected after installation, which is likely to increase the wear of the nut. Summary of the Invention

[0004] The purpose of the present invention is to provide a nut installation detection device for automobile spare parts to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A nut installation detection device for automobile spare parts, including a detection box body, the bottom of the detection box body is fixedly connected with a detection box base, a rotation groove is opened on one side of the bottom of the detection box base, a detection block is rotatably connected inside the rotation groove, one side of the detection block is fixedly connected with a mounting block, a spring is fixedly connected inside the mounting block, one side of the spring is fixedly connected with a top block, a first nut is arranged on one side of the top block, one end of the top block is in contact with the first nut, the first nut is slidably connected with the detection block, one side of the detection block is fixedly connected with a transparent observation board, a plurality of detection indicator bars are fixedly connected respectively on the outside of the transparent observation board, and a transmission component is arranged inside the detection box body;

[0006] The transmission assembly includes a support block, which is fixedly connected to one side inside the detection box body. A driving motor is fixedly connected to the top of the support block. The output end of the driving motor is fixedly connected to a first rotating shaft. A first belt pulley is fixedly connected to the outer side of the first rotating shaft. A second belt pulley is arranged on one side of the first belt pulley. A belt is sleeved on the outer side of the second belt pulley. The first belt pulley and the second belt pulley are connected to each other through the belt. A second rotating shaft is arranged inside the second belt pulley. The second belt pulley is fixedly connected to the outer side of the second rotating shaft. The second rotating shaft is rotatably connected to the detection box body.

[0007] Preferably, the transmission assembly further includes a limiting cylinder, which is fixedly connected to the detection box body. The limiting cylinder is sleeved on the outer side of the second rotating shaft. A spacer block is fixedly connected to the bottom of the second rotating shaft. The spacer block is rotatably connected to the limiting cylinder. An activity rod is arranged at the bottom of the spacer block. The activity rod is rotatably connected to the detection box body. Card slots are formed at the bottom of the spacer block and the top of the activity rod. A pivot block is fixedly connected inside the card slots.

[0008] Preferably, the limiting cylinder is fixedly connected to the detection block. A fixed block is fixedly connected inside the detection block. A magnet is slidably connected inside the fixed block. A through groove is formed on one side of the fixed block. A laser emitter is arranged inside the through groove. The laser emitter is fixedly connected to the inner top end of the detection block.

[0009] Preferably, the transparent observation plate is made of a transparent material, and the interval between the detection indicator strips is 1 mm.

[0010] Preferably, the limiting cylinder is provided with a semi-circular groove corresponding to the belt. The first belt pulley and the second belt pulley have the same height and diameter. The radian of the semi-circular groove is greater than the diameter of the second belt pulley.

[0011] Preferably, a gap is left between the spacer block and the activity rod. The top and bottom surfaces of the pivot block are respectively in contact with the spacer block and the activity rod. Gaps are left between both sides of the pivot block and the spacer block and the activity rod.

[0012] Preferably, when the top surface of the first nut is in contact with the fixed block, the top block is in contact with the side surface of the first nut. When the bottom surface of the first nut is flush with the bottom surface of the detection block, the bottom surface of the top block is in contact with the top surface of the first nut.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. In the process of rotation, the first nut is threadedly engaged with the screw to tighten. During the tightening process of the first nut, due to the threaded engagement with the screw, it slides inside the detection block, thus moving away from the bottom surface of the fixed block. When the first nut is fully tightened, the top block is ejected by the spring, so that the bottom surface of the top block contacts the top surface of the first nut. At this time, observation is carried out through the transparent observation plate. At this time, it is observed whether the height of the top surface of the first nut is the same as the height of the preset detection indicator bar and whether the top block pops out, so as to observe the installation of the first nut, avoid the situation that the nut cannot be installed in place due to excessive torque during the installation process, thereby improving the bearing capacity, connection stability and safety of the screw. At the same time, the laser emitting head emits laser, and the perpendicularity is detected by whether the laser can form an image on the ground. At the same time, the thread wear is reduced, and its service life is significantly improved.

[0015] 2. Through the staggered arrangement of the movable rod and the pivot block in the present invention, when the torque reaches a certain value, the driving motor stops rotating. Due to the inertia of the rotation of the driving motor, it still has a certain rotational speed after stopping. At this time, when the remaining rotational speed is transmitted to the pivot block, since the torque has reached, the spacer block cannot continue to drive the movable rod to rotate at this time. At this time, the pivot block will continue to rotate and move a distance and will increase the friction with the spacer block and the movable rod, so as to better stop it, prevent the remaining kinetic energy from damaging the first nut and causing damage to the automotive parts. And when the torque reaches, the friction between the pivot block and the two sides can generate a sound to warn the staff to avoid damage to the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is the present invention Figure 1 an enlarged view of the structure at A in;

[0018] Figure 3 is a cross-sectional view of the detection box body of the present invention;

[0019] Figure 4 is a schematic cross-sectional view of the structure limiting cylinder of the present invention;

[0020] Figure 5 is the present invention Figure 4 an enlarged view of the structure at B in;

[0021] Figure 6 is a cross-sectional view of the detection block of the present invention;

[0022] Figure 7 is a schematic diagram of the structure of the detection block of the present invention.

[0023] In the figure: 1, detection box body; 2, detection box base; 3, detection block; 4, mounting block; 5, spring; 6, top block; 7, nut; 8, transparent observation plate; 9, detection indicator bar; 10, support block; 11, drive motor; 12, first rotating shaft; 13, first pulley; 14, second pulley; 15, belt; 16, second rotating shaft; 17, limiting cylinder; 18, spacer block; 19, movable rod; 20, pivot block; 21, fixed block; 22, magnet; 23, laser emitter; 24, through groove. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1 to 7 shown, the embodiment of the present invention provides an automotive parts nut installation detection device, including a detection box body 1. A detection box base 2 is fixedly connected to the bottom of the detection box body 1. A rotation groove is opened on one side of the bottom of the detection box base 2. A detection block 3 is rotatably connected inside the rotation groove. One side of the detection block 3 is fixedly connected to a mounting block 4. A spring 5 is fixedly connected inside the mounting block 4. One side of the spring 5 is fixedly connected to a top block 6. A first nut 7 is arranged on one side of the top block 6. One end of the top block 6 is in contact with the first nut 7. The first nut 7 is slidably connected to the detection block 3. A transparent observation plate 8 is fixedly connected to one side of the detection block 3. A plurality of detection indicator bars 9 are fixedly connected to the outside of the transparent observation plate 8. A transmission component is arranged inside the detection box body 1; during the rotation of the first nut 7, it will be threadedly engaged with the screw, so as to be tightened. During the tightening process of the first nut 7, it will also slide inside the detection block 3, so as to be away from the bottom surface of the fixed block 21. When the first nut 7 is completely tightened, the top block 6 will be ejected by the spring 5, so that the bottom surface of the top block 6 is in contact with the top surface of the first nut 7. At this time, observe through the transparent observation plate 8. At this time, whether the height of the top surface of the first nut 7 is the same as the preset height of the detection indicator bar 9 and whether the top block 6 pops out are used to detect the installation of the first nut 7, avoiding the situation that the nut cannot be installed in place due to excessive torque during the installation process, thereby improving the bearing capacity, connection stability and safety of the screw. At the same time, the laser emitter 23 will emit laser. Whether the laser can form an image on the ground is used to detect its verticality, and at the same time, the thread wear is reduced, significantly improving its service life.

[0026] The transmission assembly includes a support block 10, the support block 10 is fixedly connected to one side inside the detection box body 1, a driving motor 11 is fixedly connected to the top of the support block 10, the output end of the driving motor 11 is fixedly connected to a first rotating shaft 12, a first pulley 13 is fixedly connected to the outside of the first rotating shaft 12, a second pulley 14 is arranged on one side of the first pulley 13, a belt 15 is sleeved on the outside of the second pulley 14, the first pulley 13 and the second pulley 14 are connected to each other through the belt 15, a second rotating shaft 16 is arranged inside the second pulley 14, the second pulley 14 is fixedly connected to the outside of the second rotating shaft 16, and the second rotating shaft 16 is rotatably connected to the detection box body 1. The transmission assembly further includes a limiting cylinder 17, the limiting cylinder 17 is fixedly connected to the detection box body 1, the limiting cylinder 17 is sleeved on the outside of the second rotating shaft 16, a spacer block 18 is fixedly connected to the bottom of the second rotating shaft 16, the spacer block 18 is rotatably connected to the limiting cylinder 17, a movable rod 19 is arranged at the bottom of the spacer block 18, the movable rod 19 is rotatably connected to the detection box body 1, clamping grooves are formed at the bottom of the spacer block 18 and the top of the movable rod 19, a pivot block 20 is fixedly connected inside the clamping grooves. Start the driving motor 11, drive the second rotating shaft 16 to rotate by starting the driving motor 11, the rotation of the second rotating shaft 16 drives the fixed block 21, the magnet 22 and the first nut 7 to rotate simultaneously, and the rotation of the first nut 7 can screw the first nut 7 into the screw, avoiding manual screwing and improving work efficiency. Through the staggered arrangement of the movable rod 19 and the pivot block 20, when the torque reaches a certain value, the driving motor 11 stops rotating at this time. Due to the certain inertia of the rotation of the driving motor 11, it still has a certain rotation speed after stopping. At this time, when the remaining rotation speed is transmitted to the pivot block 20, since the torque has reached, the spacer block 18 cannot continue to drive the movable rod 19 to rotate at this time. At this time, the pivot block 20 will continue to rotate and move a distance and will increase the friction with the spacer block 18 and the movable rod 19, so as to better stop it, prevent the remaining kinetic energy from damaging the first nut 7 and causing damage to the automobile parts, and when the torque reaches, the friction between the pivot block 20 and both sides can generate a sound to warn the staff to avoid damage to the parts.

[0027] Among them, the limiting cylinder 17 is fixedly connected to the detection block 3, a fixed block 21 is fixedly connected inside the detection block 3, a magnet 22 is slidably connected inside the fixed block 21, a through groove 24 is formed on one side of the fixed block 21, a laser emitter 23 is arranged inside the through groove 24, the laser emitter 23 is fixedly connected to the inner top end of the detection block 3. After the magnet 22 is arranged, it can adsorb the first nut 7 to position the first nut 7, and both the detection block 3 and the first nut 7 are vertically arranged, and through holes capable of cooperating with the screw are formed in the middle of the first nut 7, the fixed block 21 and the magnet 22, which can further prevent the first nut 7 from shifting during the screwing process and improve the guarantee of the perpendicularity of the first nut 7 during installation.

[0028] Among them, the transparent observation plate 8 is made of a transparent material. The interval between multiple detection indicator strips 9 is 1 mm. This 1-mm interval is used to facilitate the observation of the error during the installation of the first nut 7 and improve its detection accuracy.

[0029] Among them, there is a gap between the spacer block 18 and the movable rod 19. The top and bottom surfaces of the pivot block 20 are respectively in contact with the spacer block 18 and the movable rod 19. There are gaps between both sides of the pivot block 20 and the spacer block 18 and the movable rod 19. The limiting cylinder 17 is provided with a semi-circular groove corresponding to the belt 15. The first pulley 13 and the second pulley 14 have the same height and diameter. The radian of the semi-circular groove is larger than the diameter of the second pulley 14. The gap between the spacer block 18 and the movable rod 19 enables a certain margin for buffering during movement, avoiding damage to the first nut 7 caused by the remaining kinetic energy and damage to automotive parts.

[0030] Among them, when the top surface of the first nut 7 is in contact with the fixed block 21, the top block 6 is in contact with the side surface of the first nut 7. When the bottom surface of the first nut 7 is flush with the bottom surface of the detection block 3, the bottom surface of the top block 6 is in contact with the top surface of the first nut 7, making the detection when the first nut 7 is fully tightened more intuitive and avoiding the situation where the nut cannot be installed in place due to excessive torque during the installation process.

[0031] Working principle:

[0032] During the working process, the first nut 7 is placed from the bottom of the detection block 3. At this time, the spring 5 is in the ejected state. Due to the inclined surfaces provided on both of its side surfaces, when the first nut 7 is pressed in, it can easily push the top block 6 away so that the top block 6 is in a state of contacting the side surface of the first nut 7. When the first nut 7 is pressed into the detection block 3, it is attracted by the magnet 22 inside the fixed block 21, fixing the first nut 7 at the bottom of the fixed block 21. At the same time, the screw is passed through the part to be fixed and pre-tightened with the first nut 7;

[0033] At this time, the drive motor 11 is started. The start of the drive motor 11 drives the first rotating shaft 12 to rotate. The rotation of the first rotating shaft 12 drives the first pulley 13, the second pulley 14 and the belt 15 to rotate. The rotation of the second pulley 14 drives the drive motor 11 to start driving. The rotation of the second rotating shaft 16 drives the spacer block 18 to rotate. The rotation of the spacer block 18 drives the pivot block 20 to rotate. Through the staggered arrangement of the movable rod 19 and the pivot block 20, when the torque reaches a certain value, at this time the drive motor 11 stops rotating. Due to the certain inertia of the rotation of the drive motor 11, it will still have a certain rotational speed after stopping. At this time, when the remaining rotational speed is transmitted to the pivot block 20, since the torque has reached, at this time the rotation of the spacer block 18 cannot continue to drive the movable rod 19 to rotate. At this time, the pivot block 20 will continue to rotate and move a distance and will increase the friction with the spacer block 18 and the movable rod 19 so as to better stop it, preventing the remaining kinetic energy from damaging the first nut 7 and causing damage to automotive parts. And when the torque reaches, the friction between the pivot block 20 and both sides can produce a sound to warn the staff to avoid damage to the parts. The rotation of the pivot block 20 drives the movable rod 19 to rotate. The rotation of the movable rod 19 drives the detection block 3 to rotate. The rotation of the detection block 3 drives the fixed block 21, the magnet 22 and the first nut 7 to rotate simultaneously. The rotation of the first nut 7 enables the first nut 7 to be screwed into the screw, avoiding manual screwing and improving work efficiency;

[0034] After the screwing is completed, at this time, during the rotation of the first nut 7, it will be in threaded engagement with the screw, thereby tightening. During the tightening process of the first nut 7, it will also slide inside the detection block 3, thereby moving away from the bottom surface of the fixed block 21. When the first nut 7 is completely tightened, the top block 6 will be ejected by the spring 5, so that the bottom surface of the top block 6 is in contact with the top surface of the first nut 7. At this time, through the transparent observation plate 8, it is observed whether the height of the top surface of the first nut 7 is the same as the height of the preset detection indication strip 9 and whether the top block 6 pops out, to detect the installation of the first nut 7, avoiding the situation that the nut cannot be installed in place due to excessive torque during the installation process, thereby improving the bearing capacity, connection stability and safety of the screw. At the same time, the laser emitter 23 will emit laser. By whether the laser can form an image on the ground, its perpendicularity is detected, reducing thread wear and increasing its service life.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile spare parts nut installation detection device, comprising a detection box (1), the bottom of the detection box (1) is fixedly connected to a detection box base (2), and a rotation groove is provided on one side of the bottom of the detection box base (2), characterized in that: A detection block (3) is rotatably connected inside the rotating groove, a mounting block (4) is fixedly connected to one side of the detection block (3), a spring (5) is fixedly connected inside the mounting block (4), a top block (6) is fixedly connected to one side of the spring (5), a first nut (7) is provided on one side of the top block (6), one end of the top block (6) is in contact with the first nut (7), the first nut (7) is slidably connected to the detection block (3), a transparent observation plate (8) is fixedly connected to one side of the detection block (3), a plurality of detection indicator strips (9) are respectively fixedly connected to the outer side of the transparent observation plate (8), and a transmission assembly is provided inside the detection box (1); The transmission assembly comprises a support block (10), wherein the support block (10) is fixedly connected to one side of the inside of the detection box (1), a driving motor (11) is fixedly connected to the top of the support block (10), an output end of the driving motor (11) is fixedly connected to a first rotating shaft (12), a first belt pulley (13) is fixedly connected to the outside of the first rotating shaft (12), a second belt pulley (14) is arranged on one side of the first belt pulley (13), a belt (15) is sleeved on the outside of the second belt pulley (14), the first belt pulley (13) and the second belt pulley (14) are connected to each other via the belt (15), a second rotating shaft (16) is arranged inside the second belt pulley (14), the second belt pulley (14) is fixedly connected to the outside of the second rotating shaft (16), and the second rotating shaft (16) is rotatably connected to the detection box (1).

2. The automobile spare parts nut installation detection device according to claim 1, characterized in that: The transmission assembly also includes a limiting cylinder (17), the limiting cylinder (17) is fixedly connected to the detection box (1), the limiting cylinder (17) is sleeved on the outer side of the second rotating shaft (16), a spacer block (18) is fixedly connected to the bottom of the second rotating shaft (16), the spacer block (18) is rotatably connected to the limiting cylinder (17), a movable rod (19) is arranged at the bottom of the spacer block (18), a slot is provided at the bottom of the spacer block (18) and a top of the movable rod (19), the movable rod (19) is rotatably connected to the detection box (1), and a pivot block (20) is fixedly connected inside the slot.

3. The automobile spare parts nut installation detection device according to claim 2, characterized in that: The limiting cylinder (17) is fixedly connected to the detection block (3); a fixed block (21) is fixedly connected inside the detection block (3); a magnet (22) is slidably connected inside the fixed block (21); a through slot (24) is provided on one side of the fixed block (21); a laser radiating head (23) is arranged inside the through slot (24); and the laser radiating head (23) is fixedly connected to the internal top of the detection block (3).

4. The automobile spare parts nut installation detection device according to claim 3 is characterized in that: The transparent observation plate (8) is made of transparent material, and the intervals between the detection indicator strips (9) are 1 mm.

5. The automobile spare parts nut installation detection device according to claim 4, characterized in that: The limiting cylinder (17) is provided with a semicircular groove corresponding to the belt (15); the first belt pulley (13) and the second belt pulley (14) have the same height and diameter; and the arc of the semicircular groove is greater than the diameter of the second belt pulley (14).

6. The automobile spare parts nut installation detection device according to claim 5, characterized in that: A gap is left between the spacer block (18) and the movable rod (19); the top surface and bottom surface of the pivot block (20) are respectively in contact with the spacer block (18) and the movable rod (19); and gaps are left between the two sides of the pivot block (20) and the spacer block (18) and the movable rod (19).

7. The automobile parts nut installation detection device according to claim 6, characterized in that: When the top surface of the first nut (7) is in contact with the fixing block (21), the top block (6) is in contact with the side surface of the first nut (7); when the bottom surface of the first nut (7) is flush with the bottom surface of the detection block (3), the bottom surface of the top block (6) is in contact with the top surface of the first nut (7).

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