A square nut assembly system for automobile parts

Abstract

The present invention discloses a square nut assembly system for automotive parts, belonging to the technical field of intelligent nut assembly. The foreign matter cleaning mechanism includes symmetrically arranged slide plates, an installation spacing is provided between two of the slide plates, baffles are provided on the outer sides of the two slide plates, a mounting base plate is provided below the slide plates, fixing plates are provided on both ends of the mounting base plate, one end of the fixing plate is fixed to the mounting base plate, a hollow rectangular block is provided on the other end of the fixing plate, both ends of the hollow rectangular block are fixed to the other end of the fixing plate, an odd number of rectangular sliders are provided inside the hollow rectangular block along the length direction, a push plate is provided on one end of the rectangular slider facing the mounting base plate, telescopic elements are provided at the four corners of the push plate, and both ends of the telescopic element are respectively fixed to the hollow rectangular block and the push plate. This technical solution is used to solve the problem that the nut conveying pipe of the existing nut assembly mechanism is easily blocked by foreign matter.

Description

Technical Field

[0001] The invention belongs to the technical field of nut intelligent assembly, and in particular relates to a square nut assembly system for automobile parts. Background Art

[0002] Injection molds are usually plastic products obtained by injection molding with an injection molding machine. After the molding of the plastic products is completed, it is usually necessary to inject nuts into the nut structure on one side of these plastic products. In the prior art, such as the patent document with publication number CN202211124126.0, an automatic square nut assembly device is disclosed, including an injection molding machine for molding plastic products; a belt conveyor is provided on one side of the injection molding machine for conveying plastic products; a first support frame and a second support frame are respectively provided on the belt conveyor, and the second support frame is located on one side of the first support frame; a vibration plate is provided on the first support frame for loading nuts; the vibration plate is connected to a nut assembly mechanism through a pipe joint, and the nut assembly mechanism is provided on the second support frame for injecting nuts into the nut structure of the plastic product.

[0003] Although the above-mentioned device can realize the intelligent assembly of square nuts to a certain extent, in the actual production and use process of the device, due to the direct connection between the vibration plate and the nut assembly mechanism, the square nuts are transported. However, during the production or transportation process, there may be certain foreign matter (such as iron filings, etc.) on the square nuts, and the foreign matter will enter the nut conveying pipe of the nut assembly mechanism along with the conveyance of the square nuts. Since the square nuts are conveyed by high-pressure airflow in the nut conveying pipe, in order to ensure the effect of the high-pressure airflow on the square nuts, the hollow area of ​​the nut conveying pipe cannot be too large, otherwise the airflow will be discharged from the gap between the square nut and the nut conveying pipe, and the square nuts cannot be conveyed. Therefore, if the square nuts are adhered to or carry foreign matter, the foreign matter will easily press against the inner wall of the nut conveying pipe, thereby causing the square nuts to be clamped on the nut conveying pipe, thereby blocking the nut conveying pipe. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a square nut assembly system for automotive parts, so as to solve the problem that the nut conveying pipe of the existing nut assembly mechanism is easily blocked by foreign matter.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention discloses a square nut assembly system for automobile parts, comprising a vibration plate mechanism and a nut assembly mechanism, wherein a foreign matter cleaning mechanism is arranged between a discharge end of the vibration plate mechanism and a feed end of the nut assembly mechanism, wherein the foreign matter cleaning mechanism comprises symmetrically arranged slide plates, wherein an installation spacing is arranged between two slide plates, baffle plates are arranged on the outer sides of the two slide plates, a mounting base plate is arranged below the slide plates, fixing plates are arranged at both ends of the mounting base plate, one end of the fixing plate is fixed to the mounting base plate, a hollow rectangular block is arranged at the other end of the fixing plate, and both ends of the hollow rectangular block are fixed to the fixing plate On the other end, an odd number of rectangular sliders are provided inside the hollow rectangular block along the length direction, a push plate is provided on the end of the rectangular slider facing the mounting base plate, telescopic elements are provided at the four corners of the push plate, the two ends of the telescopic elements are respectively fixed to the hollow rectangular block and the push plate, one end of the rectangular slider is contacted with the push plate, and a push rod is provided on the other end of the rectangular slider, the push rod is located directly below the mounting spacing of the two slides, an air pipe with the same number as the push rod is provided on the outside of the push rod, the exhaust end of the air pipe is located obliquely above the baffle, and the exhaust end of the air pipe is arranged toward the mounting spacing.

[0007] Furthermore, two rectangular sliding blocks arranged at both ends of the hollow rectangular block are respectively provided with a first slide and a second slide on both side surfaces in contact with the hollow rectangular block, the first slide and the second slide both include a vertical slide and an arc slide with a transition connection, the two vertical slides are arranged close to the baffle, the protruding ends of the two arc slides are arranged opposite to each other, a rectangular sliding block located in the middle of the hollow rectangular block is provided with vertical grooves on both side surfaces in contact with the hollow rectangular block, the hollow rectangular block is respectively provided with guide columns and guide strips at both ends and the middle of the contact surface of the rectangular sliding block, the guide columns arranged at both ends are respectively located in the first slide and the second slide, the guide strip arranged in the middle is located in the vertical groove, a connecting spring is provided between the two adjacent rectangular sliding blocks, and the two ends of the connecting spring are respectively fixed on the side surfaces of the two adjacent rectangular sliding blocks.

[0008] Furthermore, pads are provided on two opposite sides of the rectangular slider at other positions. The pads are fixed on the rectangular slider, and one surface of the pads is in sliding contact with the side of the hollow rectangular block.

[0009] Furthermore, the baffle plate located directly above the push rod is disconnected from the baffle plates at other positions, and connecting seats are provided on both ends of the outer side surface of the baffle plate of the disconnected part, a rotating shaft is provided in the connecting seat, the rotating shaft and the connecting seat are rotatably connected, and the two ends of the rotating shaft are respectively fixed to the remaining baffle plates outside the two ends of the baffle plate of the disconnected part, and a pushing rod is provided on both side surfaces of the push plate, one end of the pushing rod is fixed to the push plate, and the other end of the pushing rod is provided on a connecting block, one end of the connecting block is rotatably connected to the other end of the pushing rod, and the other end of the connecting block is rotatably connected to the outer side surface of the baffle plate of the disconnected part.

[0010] Furthermore, two groups of material blocking push rods are provided on the baffle plate, and a blocking needle is provided on the output end of the material blocking push rod. The material blocking push rod is fixed on the baffle plate, and the blocking needle is slidably connected to the baffle plate. The two groups of material blocking push rods are respectively located on the outer sides of the ends of the disconnected baffle plate.

[0011] Furthermore, the rectangular sliding block is provided with a roller on the contact surface of the push plate.

[0012] Furthermore, a plurality of bristles evenly distributed around the circumference are provided on the outer side surface of the push rod.

[0013] Furthermore, the telescopic element is an electric push rod.

[0014] Furthermore, two groups of connecting springs are arranged between two adjacent rectangular sliding blocks, and the two groups of connecting springs are arranged close to the two ends of the rectangular sliding blocks respectively.

[0015] The beneficial effects of the present invention are:

[0016] In this technical solution, by high-pressure blowing after the other nut is limited, impurities adhering to the other nut itself or impurities on the conveying slide can be removed to prevent them from entering the subsequent nut assembly mechanism and causing blockage in the nut conveying pipeline.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0019] Figure 1 It is a partial three-dimensional schematic diagram of the square nut assembly system of the present invention;

[0020] Figure 2It is a three-dimensional schematic diagram of a foreign matter cleaning mechanism in the square nut assembly system of the present invention;

[0021] Figure 3 It is a schematic side view of a foreign matter cleaning mechanism in the square nut assembly system of the present invention;

[0022] Figure 4 It is a schematic front view of a foreign matter cleaning mechanism in the square nut assembly system of the present invention;

[0023] Figure 5 It is a schematic diagram of the arrangement of the first slideway and the second slideway of the foreign matter cleaning mechanism in the square nut assembly system of the present invention;

[0024] Figure 6 It is a schematic diagram of the arrangement of the guide column and the guide bar of the foreign matter cleaning mechanism in the square nut assembly system of the present invention.

[0025] The following are marked in the accompanying drawings:

[0026] 1. Install the base plate; 2. Fixing plate; 3. Hollow rectangular block; 4. Push plate; 5. Telescopic element; 6. Rectangular slider; 7. Push rod; 8. Air pipe; 9. Material stop push rod; 10. Stop needle; 11. Vertical groove; 12. Guide strip; 13. First slideway; 14. Second slideway; 15. Guide column; 16. Pad; 17. Connecting spring; 18. Rotating shaft; 19. Connecting seat; 20. Push rod; 21. Connecting block; 22. Baffle; 23. Slide plate; 24. Square nut. DETAILED DESCRIPTION

[0027] like Figures 1 to 6As shown, the present invention is an assembly system for square nuts 24 for automobile parts, including a vibration plate mechanism and a nut assembly mechanism, a foreign matter cleaning mechanism is provided between the discharge end of the vibration plate mechanism and the feed end of the nut assembly mechanism, the foreign matter cleaning mechanism includes symmetrically arranged slide plates 23, the slide plates 23 are horizontally symmetrically arranged, an installation spacing is provided between the two slide plates 23, baffle plates 22 are provided on the outer sides of the two slide plates 23, the baffle plates 22 are vertically arranged to prevent the nuts from falling when the square nuts 24 are conveyed by vibration, a mounting base plate 1 is provided below the slide plate 23, fixing plates 2 are provided at both ends of the mounting base plate 1, one end of the fixing plate 2 is fixed to the mounting base plate 1, and a hollow rectangular groove is provided on the other end of the fixing plate 2 Shaped block 3, both ends of the hollow rectangular block 3 are fixed on the other end of the fixed plate 2, an odd number of rectangular sliders 6 are arranged inside the hollow rectangular block 3 along the length direction, 5 in this specific embodiment, a push plate 4 is arranged on one end of the rectangular slider 6 facing the mounting base plate 1, telescopic elements 5 are arranged at the four corners of the push plate 4, both ends of the telescopic element 5 are respectively fixed on the hollow rectangular block 3 and the push plate 4, one end of the rectangular slider 6 is contacted with the push plate 4, a push rod 7 is arranged on the other end of the rectangular slider 6, the push rod 7 is located directly below the mounting spacing of the two slide plates 23, an air pipe 8 with the same number as the push rod 7 is arranged on the outer side of the push rod 7, the exhaust end of the air pipe 8 is located obliquely above the baffle 22, and the exhaust end of the air pipe 8 is arranged towards the mounting spacing.

[0028] The working principle of the above technical solution is:

[0029] When the nut is transported to the top of the push rod 7 through the vibration plate, the telescopic element 5 works at this time, pushing the rectangular slider 6 to move upward, thereby driving the push rod 7 to move upward. While the push rod 7 moves upward, it enters the through hole of the square nut 24, limits the position of the square nut 24, and then starts the air compressor and other equipment to blow out high-pressure gas from the air pipe 8, thereby blowing out multiple nuts on the outside of the push rod 7, and then blowing out impurities (iron filings, dust and other granular objects, etc.) adhered to the square nut 24. After the blowing is completed, the air pipe 8 stops spraying, and the telescopic element 5 drives the push rod 7 to reset. Then, the square nut 24 after the foreign matter is removed continues to be transported along the slide plate 23 to the nut assembly mechanism for assembly with the part (the car radiator water chamber formed by injection molding).

[0030] By blowing after the other nut 24 is limited, impurities adhering to the other nut 24 itself or impurities on the conveying slideway can be removed to prevent them from entering the subsequent nut assembly mechanism and causing blockage in the nut conveying pipeline. It is not difficult to understand that the subsequent delivery of nuts in the pipeline can be driven by high-pressure airflow.

[0031] In an operative manner, two rectangular sliders 6 (in the present technical solution, the number of rectangular sliders 6 is 5, so here refers to the first and fifth rectangular sliders 6) arranged at the two ends of the hollow rectangular block 3 are respectively provided with a first slide 13 and a second slide 14 on the two side surfaces in contact with the hollow rectangular block 3. The first slide 13 and the second slide 14 both include a vertical slide and an arcuate slide connected by a circular transition. The two vertical slides are both arranged close to the baffle 22, that is, arranged at the top, and the protruding ends of the two arcuate slides are arranged opposite to each other, located in the middle. A rectangular slider 6 in the middle of the hollow rectangular block 3 is provided with vertical grooves 11 on both side surfaces in contact with the hollow rectangular block 3. The hollow rectangular block 3 is provided with guide columns 15 and guide strips 12 at both ends and the middle of the contact surface of the rectangular slider 6. The guide columns 15 arranged at both ends are respectively located in the first slide 13 and the second slide 14. The guide strip 12 arranged in the middle is located in the vertical groove 11. A connecting spring 17 is provided between two adjacent rectangular sliders 6. The two ends of the connecting spring 17 are respectively fixed on the sides of the two adjacent rectangular sliders 6.

[0032] The working principle of the above technical solution is:

[0033] When the telescopic element 5 works and drives the push rod 7 to move upward, the guide column 15 first slides in the vertical slide, that is, the position of the adjacent rectangular slider 6 will not be changed. When the vertical slide slides to the end, the push rod 7 has penetrated into the interior of the square nut 24, and then the rectangular slider 6 is allowed to slide, and the guide column 15 enters the arc slide. It is not difficult to understand that since the position of the guide column 15 does not change, when the guide column 15 gradually enters the protruding part of the arc slide, the rectangular slider 6 will move outward, and because the middle rectangular slider 6 is limited by the guide bar 12, it can only slide up and down but not left and right. Therefore, when the end rectangular slider 6 slides outward , it will pull the connecting spring 17, thus pulling the rectangular slider 6 to both sides. Since the connecting spring 17 is deformed, the spacing between adjacent rectangular sliders 6 is larger than the initial spacing, so the contact between adjacent nuts on the push rod 7 is disengaged (during transportation, the nuts move one by one). Then, when the air pipe 8 is blown, the square nut 24 will rotate, that is, each surface can be in contact with the high-pressure airflow to blow away impurities. At the same time, the centrifugal force generated during the rotation can throw out the impurities that are tightly adhered to the square nut 24, further improving the impurity removal effect. When the cleaning is completed, the telescopic element 5 is reset, and the rectangular slider 6 will also return to its original position.

[0034] In one feasible manner, pads 16 are provided on the two relatively opposite side surfaces of the rectangular slider 6 at other positions, the pads 16 are fixed on the rectangular slider 6, and one surface of the pads 16 is in sliding contact with the side surface of the hollow rectangular block 3. The setting of the pads 16 can play a role of contact limiting, thereby avoiding the problem of deflection of the rectangular slider 6.

[0035] In one feasible manner, the baffle 22 located directly above the push rod 7 is disconnected from the baffles 22 at other positions, and connecting seats 19 are provided on both ends of the outer side surfaces of the baffle 22 of the disconnected portion, and a rotating shaft 18 is provided in the connecting seat 19. The rotating shaft 18 and the connecting seat 19 are rotatably connected, and the two ends of the rotating shaft 18 are respectively fixed to the remaining baffles 22 outside the two ends of the baffle 22 of the disconnected portion, and a pushing rod 20 is provided on both side surfaces of the push plate 4, one end of the pushing rod 20 is fixed to the push plate 4, and a connecting block 21 is provided on the other end of the push rod 20, one end of the connecting block 21 is rotatably connected to the other end of the push rod 20, and the other end of the connecting block 21 is rotatably connected to the outer side surface of the baffle 22 of the disconnected portion.

[0036] When the telescopic element 5 drives the push plate 4 to move upward, the push rod 20 will also move upward, that is, under the action of the connecting block 21, when the push rod 20 moves upward, it will pull the lower part of the baffle 22 at the disconnection point to flip upward around the rotating shaft 18 to the outside, so that the square nut 24 can be exposed to facilitate the blowing of the air pipe 8. At the same time, the upper part of the baffle 22 of the disconnected part flips inward, that is, the upper position is close to the push rod 7, which reduces the space outside the upper end of the push rod 7, and blocks and limits the space above the square nut 24. Therefore, when the air pipe 8 is blown at high speed, the square nut 24 will not fly out from the upper end of the push rod 7.

[0037] In one feasible manner, two groups of material blocking push rods 9 are provided on the baffle plate 22, and a blocking needle 10 is provided on the output end of the material blocking push rod 9. The material blocking push rod 9 is fixed on the baffle plate 22, and the blocking needle 10 is slidably connected to the baffle plate 22. The two groups of material blocking push rods 9 are respectively located on the outer sides of the ends of the disconnected baffle plate 22. The number of nuts entering the top of the push rod 7 is controlled by a sensor or a visual detection system. That is, when the number reaches a preset value, the material blocking push rod 9 only needs to drive the push needle to extend, so as to realize the operation of blocking and releasing the other nut 24. No further elaboration will be made here.

[0038] In one feasible manner, a plurality of brushes evenly distributed around the circumference are provided on the outer surface of the push rod 7. When the square nut 24 rotates under the action of high-pressure airflow, the brushes can clean the impurities in the internal threads of the square nut 24, thereby improving the connection effect between the square nut 24 and components such as the screw rod in the later stage.

[0039] In an operative manner, the rectangular slider 6 is provided with rollers on the contact surface of the push plate 4 to improve the sliding effect of the rectangular slider 6. In an operative manner, the telescopic element 5 is an electric push rod 20. In an operative manner, two groups of connecting springs 17 are provided between two adjacent rectangular sliders 6, and the two groups of connecting springs 17 are respectively provided near the two ends of the rectangular slider 6. The provision of the two groups of connecting springs 17 makes the movement of the rectangular slider 6 more stable.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A square nut assembly system for automobile parts, comprising a vibration plate mechanism and a nut assembly mechanism, characterized in that: A foreign matter cleaning mechanism is provided between the discharge end of the vibration plate mechanism and the feed end of the nut assembly mechanism, the foreign matter cleaning mechanism comprising symmetrically arranged slide plates (23), a mounting spacing being provided between two slide plates (23), baffle plates (22) being provided on the outer sides of the two slide plates (23), a mounting base plate (1) being provided below the slide plates (23), fixing plates (2) being provided at both ends of the mounting base plate (1), one end of the fixing plate (2) being fixed to the mounting base plate (1), a hollow rectangular block (3) being provided at the other end of the fixing plate (2), the two ends of the hollow rectangular block (3) being fixed to the other end of the fixing plate (2), and an odd number of slits being provided inside the hollow rectangular block (3) along the length direction. A rectangular slider (6), a push plate (4) is provided on one end of the rectangular slider (6) facing the mounting base plate (1), telescopic elements (5) are provided at four corners of the push plate (4), two ends of the telescopic element (5) are respectively fixed to the hollow rectangular block (3) and the push plate (4), one end of the rectangular slider (6) is arranged in contact with the push plate (4), a push rod (7) is provided on the other end of the rectangular slider (6), the push rod (7) is located directly below the mounting spacing of the two slide plates (23), an air pipe (8) is provided on the outer side of the push rod (7) and the same number as the push rod (7), the exhaust end of the air pipe (8) is located obliquely above the baffle (22), and the exhaust end of the air pipe (8) is arranged toward the mounting spacing; Two rectangular sliding blocks (6) disposed at the two ends of the hollow rectangular block (3) are provided with a first slideway (13) and a second slideway (14) on both sides of the surfaces in contact with the hollow rectangular block (3), respectively. The first slideway (13) and the second slideway (14) both include a transitionally connected vertical slideway and an arcuate slideway. The two vertical slideways are disposed close to the baffle (22), and the protruding ends of the two arcuate slideways are disposed opposite to each other. A rectangular sliding block (6) located in the middle of the hollow rectangular block (3) is provided with a vertical slideway on both sides of the surfaces in contact with the hollow rectangular block (3). The hollow rectangular block (3) is provided with guide columns (15) and guide strips (12) at both ends and in the middle of the contact surface of the rectangular slider (6), respectively. The guide columns (15) provided at both ends are respectively located in the first slideway (13) and the second slideway (14), and the guide strips (12) provided in the middle are located in the vertical groove (11). A connecting spring (17) is provided between two adjacent rectangular sliders (6), and the two ends of the connecting spring (17) are respectively fixed to the side surfaces of the two adjacent rectangular sliders (6).

2. A square nut assembly system for automobile parts according to claim 1, characterized in that: Pads (16) are provided on two oppositely disposed side surfaces of the rectangular slider (6) at other positions. The pads (16) are fixed on the rectangular slider (6), and one surface of the pads (16) is in sliding contact with the side surface of the hollow rectangular block (3).

3. A square nut assembly system for automobile parts according to claim 1, characterized in that: The baffle plate (22) located directly above the push rod (7) is disconnected from the baffle plates (22) at other positions, and connecting seats (19) are provided on both ends of the outer side surface of the baffle plate (22) at the disconnected portion, a rotating shaft (18) is provided in the connecting seat (19), the rotating shaft (18) and the connecting seat (19) are rotatably connected, and the two ends of the rotating shaft (18) are respectively fixed to the other baffle plates (22) outside the two ends of the baffle plate (22) at the disconnected portion, and a push rod (20) is provided on both side surfaces of the push plate (4), one end of the push rod (20) is fixed to the push plate (4), and the other end of the push rod (20) is provided with a connecting block (21), one end of the connecting block (21) is rotatably connected to the other end of the push rod (20), and the other end of the connecting block (21) is rotatably connected to the outer side surface of the baffle plate (22) at the disconnected portion.

4. A square nut assembly system for automobile parts according to claim 3, characterized in that: Two groups of material blocking push rods (9) are provided on the baffle plate (22), and a blocking needle (10) is provided on the output end of the material blocking push rod (9). The material blocking push rod (9) is fixed on the baffle plate (22), and the blocking needle (10) is slidably connected to the baffle plate (22). The two groups of material blocking push rods (9) are respectively located outside the ends of the baffle plate (22) that are disconnected.

5. A square nut assembly system for automobile parts according to claim 1, characterized in that: The rectangular sliding block (6) is provided with a roller on the contact surface of the push plate (4).

6. A square nut assembly system for automobile parts according to claim 1, characterized in that: A plurality of brush bristles evenly distributed around the circumference are provided on the outer surface of the push rod (7).

7. A square nut assembly system for automobile parts according to claim 1, characterized in that: The telescopic element (5) is an electric push rod (20).

8. The square nut assembly system for automobile parts according to claim 1, characterized in that: Two groups of connecting springs (17) are arranged between two adjacent rectangular sliders (6), and the two groups of connecting springs (17) are respectively arranged close to the two ends of the rectangular sliders (6).

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