Automotive nut machining equipment

Abstract

This utility model discloses an automotive nut processing device, relating to the field of nut processing technology. It includes a frame on which are mounted a screening component for selecting nuts with their openings facing upwards, installed at the end of a vibratory feeder; a tapping turntable including multiple slots, including a loading station, a processing station, and a unloading station, the loading station being located downstream of the screening component's outlet, with the slot inlet of the loading station facing the screening component; and at least one set of transfer components, the output end of which reciprocates between the screening component's outlet and the loading station, for transferring the screened nuts into the slots of the loading station. Nuts in suitable condition are selected by the screening component, and the nuts are transferred to or out of the tapping turntable by the transfer components. The tapping turntable has multiple stations, each equipped with a limit component to limit the nut's position. The nuts complete loading, processing, and unloading on the tapping turntable. The process is rational, highly automated, and efficient.

Description

Technical Field

[0001] This utility model belongs to the field of nut processing technology, and specifically relates to a nut processing device for automobiles. Background Technology

[0002] Wheel hub nuts are critical fasteners connecting the wheel to the wheel hub bearing, and their reliability and precision directly affect driving safety. Unlike ordinary nuts, these nuts typically feature a prominent hexagonal head and a washer at the bottom with a diameter larger than the nut body. This design aims to provide a larger contact area and anti-rotation function, ensuring a firm hold under heavy torsional loads and vibrations. The quality of the internal threads is crucial for achieving the designed preload and preventing loosening or seizing; therefore, tapping is a core process in their manufacturing.

[0003] In traditional production processes, it is common practice to rely on manual identification and placement of nuts: workers must pick up nuts one by one from the stockpile or vibratory feeder, visually determine their orientation, and then manually place them into the fixture of the processing equipment. This manual operation is not only extremely inefficient, becoming a bottleneck in production, but also highly susceptible to errors in orientation due to fatigue or negligence. Once the orientation is incorrect or the positioning is inaccurate, it can lead to minor issues such as tapping tool positioning deviation and unqualified thread processing, or even serious damage to expensive tools and workpieces, resulting in material waste and a significant reduction in yield and production efficiency. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an automotive nut processing device to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An automotive nut processing device includes a frame on which are mounted a screening assembly for selecting nuts with their openings facing upwards, mounted at the end of a vibratory feeder; a tapping turntable including multiple slots, including a loading station, a processing station, and a unloading station, wherein the loading station is located downstream of the outlet end of the screening assembly, and the slot inlet of the loading station faces the screening assembly; and at least one set of transfer components, wherein the output end of one set of transfer components reciprocates between the outlet end of the screening assembly and the loading station to transfer the screened nuts into the slots of the loading station.

[0007] Preferably, the screening assembly includes a guide plate installed at the end of the vibratory feeder, the guide plate having an embedded groove along its length, and a screen plate for screening out nuts with downward openings installed on the guide plate.

[0008] Preferably, the width of the recessed groove is greater than the diameter of the hexagonal portion of the nut and less than the outer diameter of the washer, and the depth of the recessed groove is not less than the height of the hexagonal portion of the nut.

[0009] Preferably, a screen groove is formed between the bottom end of the screen plate and the guide plate, and the height of the screen groove is less than the height of the hexagonal part of the nut and greater than the height of the washer.

[0010] Preferably, the transfer assembly includes a linear drive assembly, a cylinder, and a plug, with the plug mounted on the output end of the cylinder, the cylinder mounted on the output end of the linear drive assembly, and the cylinder driving the plug to insert or pull out of the nut opening.

[0011] Preferably, the transfer component for feeding is located above the feeding station, and the linear drive component drives the cylinder to move repeatedly in a straight line between the feeding station and the end of the screening component.

[0012] Preferably, a set of transfer components is installed above the unloading station. The output end of the linear drive component of the transfer component for unloading drives the cylinder to move linearly and repeatedly along the side opening direction of the unloading station, and the insert pushes the nut out of the slot of the unloading station.

[0013] Preferably, the tapping turntable includes a turntable, and multiple slots are evenly distributed on the turntable, which are respectively a loading station, a processing station and a unloading station along the rotation direction of the turntable.

[0014] Preferably, a fence is installed on the frame, and there is a gap between the nut in the slot and the inner wall of the fence. The fence located at the loading station and the unloading station has slots for loading and unloading along the side openings.

[0015] Preferably, the turntable is equipped with limiting components that correspond one-to-one with the slots. The limiting components include rotatable baffles. The baffles at the loading and unloading stations are close to the inner wall of the slots, and the baffles at the processing station are close to the nuts.

[0016] The automotive nut processing device proposed in this utility model selects nuts in suitable condition through a screening component, and transfers the nuts to or from the tapping turntable through a transfer component. The tapping turntable has multiple stations, and each station is equipped with a limit component to limit the nut. The nut completes loading, processing and unloading on the tapping turntable. The process is reasonable, highly automated and efficient.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 The three-dimensional structure of the automotive nut processing device proposed in this utility model Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the automotive nut processing device proposed in this utility model Figure 2 ;

[0020] Figure 3 This is a front view of the automotive nut processing device proposed in this utility model;

[0021] Figure 4 for Figure 3 A sectional perspective view along the AA direction.

[0022] Reference numerals: 1. Frame; 2. Screening assembly; 21. Guide plate; 22. Embedded groove; 23. Screen plate; 24. Screen groove; 3. Transfer assembly; 31. Guide rail; 32. Moving assembly; 33. Cylinder; 34. Insert block; 4. Tapping turntable; 41. First motor; 42. Turntable; 43. Slot; 44. Enclosure; 45. Limiting assembly; 451. Second motor; 452. Connecting rod; 453. Baffle. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example 1

[0025] refer to Figures 1 to 4 The automotive nut processing device described in this embodiment includes a frame 1, on which are installed a screening component 2 for screening nuts with the opening facing upwards, which is installed at the end of the vibratory plate; a tapping turntable 4, including multiple slots 43, including a loading station, a processing station and a unloading station, the loading station being located downstream of the outlet end of the screening component 2, and the inlet of the slot 43 on the loading station facing the screening component 2; at least one set of transfer components 3, wherein the output end of one set of transfer components 3 reciprocates between the outlet end of the screening component 2 and the loading station, for transferring the screened nuts into the slot (43) of the loading station.

[0026] Preferably, the transfer component 3 includes two sets, located above the loading station and the unloading station respectively, for loading and unloading.

[0027] The nut consists of a hexagonal portion and a washer. The diameter of the washer is larger than the maximum diameter of the hexagon. A hole is pre-drilled in the nut, and the opening of the hole penetrates the washer. The total thickness of the nut is less than the diameter of the hexagon.

[0028] The upright position is when the opening faces upward and the washer is located above the hexagonal part; the inverted position is when the opening faces downward and the washer is located above the hexagonal part.

[0029] Workflow: The nuts are transferred from the vibrating plate to the screening component 2. The screening component 2 vibrates with the vibrating plate and screens out the nuts that do not meet the requirements, keeping the upright nuts. The transfer component 3 transfers the last group of nuts from the screening component 2 to the slot 43 of the loading station. The tapping turntable 4 drives the nuts from the loading station to the processing station for tapping, and then from the unloading station for unloading. The automation process is highly automated.

[0030] The screening assembly 2 includes a guide plate 21 installed at the end of the vibrating plate. The guide plate 21 has an embedded groove 22 along its length, and a screen plate 23 for screening out nuts with their openings facing downwards is installed on the guide plate 21. The width of the embedded groove 22 is greater than the diameter of the hexagonal portion of the nut and smaller than the outer diameter of the washer, and the depth of the embedded groove 22 is not less than the height of the hexagonal portion of the nut.

[0031] Preferably, a screen groove 24 is formed between the bottom end of the screen plate 23 and the guide plate 21. The height of the screen groove 24 is less than the height of the hexagonal part of the nut and greater than the height of the washer.

[0032] It is worth noting that the sieve 24 is one embodiment of screening, but other methods can also be used, such as installing the sieve plate 23 on the output end of the electric push rod to push the inverted nut out of the guide plate 21.

[0033] The transfer assembly 3 includes a linear drive assembly, a cylinder 33, and a plug 34. The plug 34 is mounted on the output end of the cylinder 33, and the cylinder 33 is mounted on the output end of the linear drive assembly. The cylinder 33 drives the plug 34 to insert or pull out of the nut opening.

[0034] Preferably, the linear drive assembly includes a guide rail 31 and a moving assembly 32, the moving assembly 32 being self-driven to repeatedly move linearly along the guide rail 31. The guide rail 31 and the moving assembly 32 can be used as a ceiling-mounted robot or an electric push rod to directly and repeatedly push the cylinder 33.

[0035] The transfer component 3 for feeding has a guide rail 31 that extends along the length of the feeding station and the end of the screening component 2. The moving component 32 drives the cylinder 33 to move linearly back and forth between the feeding station and the end of the screening component 2.

[0036] The transfer component 3 for unloading has a guide rail 31 that moves repeatedly in a straight line along the side opening direction of the unloading station in the length direction. The output end of the moving component 32 drives the cylinder 33, and the insert block 34 pushes the nut out of the slot 43 of the unloading station.

[0037] The tapping turntable 4 includes a motor 41 and a turntable 42. The turntable 42 is installed on the output end of the motor 41. Multiple slots 43 are evenly distributed on the turntable 42, which are respectively the loading station, the processing station and the unloading station along the rotation direction of the turntable 42.

[0038] A fence 44 is installed on the frame 1. The fence 44 is located outside the slot 43. There is a gap between the nut in the slot 43 and the inner wall of the fence 44. The fence 44 located at the loading station and the unloading station has slots for loading and unloading along the side opening direction.

[0039] The turntable 42 is equipped with a limiting component 45 that corresponds to the slot 43. The limiting component 45 includes a rotatable baffle 453. The baffle 453 at the loading station and unloading station is close to the inner wall of the slot 43, and the baffle 453 at the processing station is close to the nut.

[0040] Preferably, the limiting component 45 further includes a second motor 451 installed at the bottom of the turntable 42. A connecting rod 452 is installed on the output end of the second motor 451. The baffle 453 is rotatably connected to the connecting rod 452. The second motor 451 drives the baffle 453 to rotate repeatedly through the connecting rod 452.

[0041] Working principle: Side-mounted nuts fall from the inner groove 22, upright nuts pass through the screen groove 24, and inverted nuts are blocked by the screen plate 23 and fall under the push of the nuts behind them; at this time, the baffle 453 is close to the inner wall of the slot 43 to make way for the nut transfer, the cylinder 33 pushes the insert block 34 to insert into the group of nuts on the guide plate 21 closest to the tapping turntable 4, the moving component 32 drives the cylinder 33 to move to the feeding station, so that the nut is transferred to the slot 43 of the feeding station, the output end of the cylinder 33 rises and resets, and after the transfer is completed, the second motor 451 starts by driving the baffle 453 to rotate via the connecting rod 452, so that the baffle 453 is close to the nut, making the nut position stable and thus ensuring the quality of tapping at the machining station; after machining is completed, the second motor 451 rotates in the opposite direction to drive the baffle 453 to re-close to the inner wall of the slot 43, making way for the nut to be unloaded. When the nut reaches the unloading station, the cylinder 33 above the unloading station inserts the insert block 34 into the nut, and the moving component 32 drives the cylinder 32 to move along the side opening of the slot 43, moving the machined nut out of the tapping turntable 4.

[0042] This device uses the screening component 2 to select nuts in suitable condition, and the transfer component 3 to transfer the nuts to or from the tapping turntable 4. The tapping turntable 4 has multiple stations, and each station is equipped with a limit component to limit the nuts. The nuts are loaded, processed and unloaded on the tapping turntable 4. The process is reasonable, the degree of automation is high and the work efficiency is high.

[0043] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nut processing device for automobiles, comprising a frame (1), characterized in that: The following are mounted on the rack (1): The screening component (2) for screening out nuts with the opening facing upwards is installed at the end of the vibratory plate; The tapping turntable (4) includes multiple slots (43), including a loading station, a processing station and a unloading station. The loading station is located downstream of the outlet end of the screening component (2), and the slots (43) on the loading station face the screening component (2). At least one set of transfer components (3), wherein the output end of one set of transfer components (3) reciprocates between the outlet end of the screening component (2) and the loading station, for transferring the screened nuts into the slot (43) of the loading station.

2. The automotive nut processing device according to claim 1, characterized in that: The screening assembly (2) includes a guide plate (21) installed at the end of the vibrating plate. The guide plate (21) has an embedded groove (22) along its length. A screen plate (23) for screening out nuts with their openings facing downwards is installed on the guide plate (21).

3. The automotive nut processing device according to claim 2, characterized in that: The width of the recessed groove (22) is greater than the diameter of the hexagonal part of the nut and less than the outer diameter of the washer, and the depth of the recessed groove (22) is not less than the height of the hexagonal part of the nut.

4. The automotive nut processing device according to claim 2, characterized in that: A screen groove (24) is formed between the bottom end of the screen plate (23) and the guide plate (21). The height of the screen groove (24) is less than the height of the hexagonal part of the nut and greater than the height of the washer.

5. The automotive nut processing device according to claim 1, characterized in that: The transfer assembly (3) includes a linear drive assembly, a cylinder (33) and a plug (34). The plug (34) is mounted on the output end of the cylinder (33), and the cylinder (33) is mounted on the output end of the linear drive assembly. The cylinder (33) drives the plug (34) to insert or pull out of the nut opening.

6. The automotive nut processing device according to claim 5, characterized in that: The transfer component (3) for feeding is located above the feeding station, and the linear drive component drives the cylinder (33) to move repeatedly in a straight line between the feeding station and the end of the screening component (2).

7. The automotive nut processing device according to claim 5, characterized in that: A set of transfer components (3) is installed above the unloading station. The output end of the linear drive component of the transfer component (3) used for unloading moves repeatedly in a straight line along the side opening direction of the unloading station. The insert block (34) pushes the nut out of the slot (43) of the unloading station.

8. The automotive nut processing device according to claim 1, characterized in that: The tapping turntable (4) includes a turntable (42) with multiple slots (43) evenly distributed on the turntable (42). Along the rotation direction of the turntable (42), they are respectively the loading station, the processing station and the unloading station.

9. The automotive nut processing apparatus according to claim 8, characterized in that: A fence (44) is installed on the frame (1). There is a gap between the nut in the slot (43) and the inner wall of the fence (44). The fence (44) located at the loading station and the unloading station has a slot for loading and unloading along the side opening.

10. The automotive nut processing apparatus according to claim 8, characterized in that: The turntable (42) is equipped with a limiting component (45) that corresponds to the slot (43). The limiting component (45) includes a rotatable baffle (453). The baffle (453) at the loading station and unloading station is close to the inner wall of the slot (43), and the baffle (453) at the processing station is close to the nut.

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