Water mixing valve nut riveting mechanism

Abstract

The utility model relates to a kind of mixed water valve nut riveting mechanism, by carrying mechanism, carousel mechanism, hexagonal nut vibration disc, mixed water nut vibration disc and output mechanism form;The mixed water nut vibration disc and hexagonal nut vibration disc are respectively connected together by mixed water nut direct vibrator and hexagonal nut direct vibrator with carousel mechanism;The carrying mechanism is between hexagonal nut vibration disc and carousel mechanism;The output machine is set in the part of left side of carousel mechanism close to front end, its rear end and the part of carrying mechanism front close left end front and rear correspond, the mixed water nut direct vibrator is between carrying mechanism and output machine;This mixed water valve nut riveting mechanism can be conveniently mixed water screw rod and mixed water nut and hexagonal nut riveting cooperation by carrying mechanism, realizes the automatic feeding and automatic assembly between mixed water screw rod and mixed water nut machine hexagonal nut, degree of automation is high, saves labor, reduces the production cost of mixed water valve, and improves the production and processing efficiency of product.

Description

Technical Field

[0001] This utility model relates to the processing of mixing valves, and more particularly to a nut riveting mechanism for mixing valves. Background Technology

[0002] A mixing valve is a valve that connects cold and hot water pipes and is used to mix cold and hot water. The mixing screw, mixing nut, and hexagonal nut are important components of the mixing valve; refer to the instruction manual for details. Figure 6 As shown, the instruction manual is attached. Figure 6 In the attached figures, reference numeral 7 represents a mixing screw, reference numeral 8 represents a mixing nut, and reference numeral 9 represents a hexagonal nut. The mixing screw is inserted into the central hole of the mixing nut, and the lower end of the mixing screw extends below the bottom of the mixing nut. The part of the mixing screw located below the bottom of the mixing nut is riveted to the hexagonal nut.

[0003] Currently, the assembly of mixing screws, mixing nuts, and hexagonal nuts mainly relies on manual processing. During processing, workers first insert the mixing screw into the center hole of the mixing nut, then assemble the mixing screw and nut together with the hexagonal nut. Specifically, the part of the mixing screw located below the bottom of the mixing nut is aligned with the riveting hole at the top of the hexagonal nut. A rubber hammer or a special riveting device is used to rivet the lower end of the mixing screw to the hexagonal nut, thus completing the assembly of the mixing screw, mixing nut, and hexagonal nut. However, this assembly method is labor-intensive, requiring more operators to maintain processing efficiency, increasing production costs, and compromising production efficiency. Furthermore, different application forces during the riveting process result in varying assembly effects, leading to inconsistent product quality and an inability to effectively guarantee the processing quality of the products. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a riveting mechanism for a mixing valve nut that facilitates automatic feeding and riveting of mixing nuts, hexagonal nuts and mixing screws.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A mixing valve nut riveting mechanism comprises a transport mechanism, a turntable mechanism, a hexagonal nut vibrating plate, a mixing nut vibrating plate, and an output mechanism. The mixing nut vibrating plate and the hexagonal nut vibrating plate are arranged at a 90° angle to the left and rear sides of the turntable mechanism, respectively, and are connected to the turntable mechanism via a mixing nut direct vibrator and a hexagonal nut direct vibrator. The transport mechanism is positioned between the hexagonal nut vibrating plate and the turntable mechanism, mounted above the hexagonal nut direct vibrator. The output mechanism is located on the left side of the turntable mechanism near the front end, with its rear end adjacent to the front of the transport mechanism near the left end. The components are arranged in a front-to-back correspondence. The mixing nut vibrator is located between the conveying mechanism and the output machine. The turntable mechanism includes a bracket, with a horizontally rotating turntable at the top center of the bracket. The turntable has four U-shaped concave loading stations arranged in a circular array on its outer perimeter. A hanging plate is suspended inside the bracket by a vertically arranged hanging rod. The top of the hanging plate has a vertically arranged coupling. The top of the coupling passes through the top surface of the bracket and is fixedly connected to the bottom center of the turntable. A stepper motor is fixedly connected to the bottom center of the hanging plate. The shaft of the stepper motor is vertically upward and passes upward through the hanging plate to drive the coupling.

[0007] Furthermore, a limiting block is fitted around the turntable with a clearance fit. A first feed port is provided at the center of the left side of the limiting block, and a second feed port is provided at the center of the rear side. The first feed port corresponds to the rear end of the mixing nut vibrator, and the second feed port corresponds to the rear end of the hexagonal nut vibrator.

[0008] Furthermore, the conveying mechanism includes a Π-shaped gantry frame, which is horizontally mounted directly above the hexagonal nut vibrator. A linear module is fixedly installed on the front top of the gantry frame along its left and right length. A base plate is fixedly connected to the linear module on its slide. The base plate is horizontally positioned, and a vertically positioned lifting cylinder is located at the center of its top. The piston rod of the lifting cylinder points vertically downward, and the end of the piston rod passes downward through a pre-set transition hole on the base plate and is fixedly connected to a connecting seat located directly below the base plate. A gripper cylinder is located at the center of the bottom of the connecting seat, and the gripper on the gripper cylinder points downward.

[0009] Furthermore, two guide connection holes with vertical connection are symmetrically arranged on the left and right sides of the lifting cylinder on the base plate. A guide sleeve is fixedly connected to the guide connection hole. A guide post is slidably engaged with the guide sleeve. The bottom of the guide post passes through the guide sleeve and is fixedly connected to the connecting seat.

[0010] Furthermore, the output unit includes a frame arranged longitudinally front to back, with two symmetrically positioned pulleys at its top ends, and a conveyor belt sleeved around the two pulleys; a driven gear is provided on one side of the frame corresponding to the front pulley, and a driving gear is provided on the same side of the frame as the driven gear, with the driving gear and the driven gear being connected by a toothed transmission belt; a servo motor is provided on the other side of the frame opposite to the driven gear, and the drive shaft of the servo motor passes through the frame and is fixedly connected to the driving gear on the other side of the frame.

[0011] Furthermore, the top of the frame is provided with limiting bars fixedly connected to both sides of the conveyor belt, and a guide groove is formed between the two limiting bars, which corresponds vertically to the top surface of the conveyor belt.

[0012] Furthermore, a position sensor is provided at the top of the limiting bar near the front end.

[0013] Furthermore, a defective product storage mechanism is provided between the mixing nut vibrator and the output machine. The defective product storage mechanism consists of a conduit and a storage box. The conduit is obliquely arranged, with its upper and lower ends connected to each other. The storage box is located below the bottom of the conduit.

[0014] Compared with the prior art, the advantages of this utility model are: this mixing valve nut riveting mechanism can realize the automatic feeding of hexagonal nuts and mixing nuts through the hexagonal nut vibrating plate and the mixing nut vibrating plate, and can easily realize the gripping of the mixing screw and the pressing and riveting with the mixing nut and hexagonal nut through the conveying mechanism. It realizes the automatic feeding and automatic assembly between the mixing screw and the mixing nut and hexagonal nut, with a high degree of automation, saving labor, reducing the production cost of the mixing valve, and improving the production and processing efficiency of the product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a mixing valve nut riveting mechanism according to this utility model;

[0017] Figure 2 This is a schematic diagram of the position and structure of the conveying mechanism, turntable mechanism and output mechanism in a mixing valve nut riveting mechanism of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the conveying mechanism in the mixing valve nut riveting mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the turntable mechanism in the mixing valve nut riveting mechanism of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the output machine in the mixing valve nut riveting mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the assembly process of the mixing screw, mixing nut and hexagonal nut in this utility model.

[0022] In the diagram: 1. Handling mechanism; 11. Gantry frame; 12. Linear module; 13. Base plate; 14. Lifting cylinder; 15. Connecting seat; 16. Guide column; 161. Guide sleeve; 17. Gripper cylinder; 171. Gripper; 2. Turntable mechanism; 21. Support; 22. Turntable; 221. Loading station; 23. Limit block; 231. First feed inlet; 232. Second feed inlet; 24. Hanging plate; 241. Hanging rod; 25. Stepper motor; 251. Coupling; 3. Hexagonal 31. Nut vibratory feeder; 4. Hexagonal nut vibrator; 5. Mixing nut vibratory feeder; 6. Mixing nut vibrator; 7. Output unit; 8. Frame; 9. Servo motor; 10. Drive gear; 11. Toothed transmission belt; 12. Conveyor belt; 13. Driven gear; 14. Limit bar; 15. Guide groove; 16. Position sensor; 17. Defective product storage mechanism; 18. Conduit; 19. Storage box; 20. Mixing screw; 31. Mixing nut; 42. Hexagonal nut. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.

[0026] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0027] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example

[0029] Please refer to the instruction manual attached. Figure 1 and 2 As shown, the instruction manual is attached. Figure 1 and 2The figure shown is a specific embodiment of a mixing valve nut riveting mechanism of this utility model. This mixing valve nut riveting mechanism consists of a conveying mechanism 1, a turntable mechanism 2, a hexagonal nut vibrating plate 3, a mixing nut vibrating plate 4, and an output machine 5; see the attached specification. Figure 1 As shown, the mixing nut vibrating plate 4 and the hexagonal nut vibrating plate 3 are arranged at a 90° angle on the left and rear sides of the turntable mechanism 2. A mixing nut direct vibrator 41 is provided between the mixing nut vibrating plate 4 and the turntable mechanism 2. One end of the mixing nut direct vibrator is connected to the discharge port of the mixing nut vibrating plate 4, and the other end is connected to the mixing nut feeding port on the turntable mechanism 2. A hexagonal nut direct vibrator 31 is provided between the hexagonal nut vibrating plate 3 and the turntable mechanism 2. One end of the hexagonal nut direct vibrator 31 is connected to the discharge port of the hexagonal nut vibrating plate 3, and the other end is connected to the hexagonal nut feeding port on the turntable mechanism 2. (See attached instruction manual) Figure 4As shown, the turntable mechanism 2 includes a support 21, which consists of a top plate, a bottom plate, and supporting columns. The top plate and bottom plate are arranged parallel to each other and have a rectangular structure. There are at least four columns, and the four corners of the bottom of the top plate and the four corners of the top of the bottom plate are fixedly connected together by the four columns. The top center of the top plate has a shaft connection hole that is vertically connected. The top center of the support 21 has a turntable 22 that can rotate horizontally. The center of the turntable 22 is coaxial with the shaft hole at the top center of the top plate. The outer circumference of the turntable 22 has four U-shaped concave loading stations 221. The loading stations 221 are designed to facilitate the feeding of the mixing nuts 8 and hexagonal screws. For the feeding of the mother screw 9, the top plate is equipped with transition holes that connect vertically at the four feeding stations 221. These transition holes ensure that the lower end of the mixing screw 7 is not interfered with by the top plate when it descends, thus guaranteeing the normal radial direction of the riveting. To limit the position of the mixing nut 8 and hexagonal nut 9 within the feeding station 221 and facilitate their synchronous movement with the rotation of the turntable 22, a limiting block 23 with clearance fit is fitted around the turntable 22. The limiting block 23 is fixed to the top of the top plate by bolts, and its center is provided with a connecting hole that fits into the turntable 22. The turntable 22 is movably disposed within the connecting hole, and the rotation can be limited by the hole wall. When the turntable 22 rotates, the mixing nuts 8 and hexagonal nuts 9 in its loading station 221 will not fall off. To facilitate the mixing nuts 8 and hexagonal nuts 9 entering the loading station 221 on the turntable 22 via the limiting block, the limiting block 23 has a first feed port 231 at its left center and a second feed port 232 at its rear center. The first feed port 231 corresponds to the rear end of the mixing nut vibrator 41, and the second feed port 232 corresponds to the rear end of the hexagonal nut vibrator 31. The first feed port 231 constitutes the mixing nut feed port, and the second feed port 232 constitutes the hexagonal nut feed port. The turntable 22 is driven to rotate horizontally. Inside the bracket 21, a hanging plate 24 is suspended by a vertically arranged hanging rod 241. The hanging plate 24 is located between the corresponding top plate and bottom plate. The top of the hanging plate 24 has a vertically arranged coupling 251. The top of the coupling 251 passes through the top surface of the bracket 21 and is fixedly connected to the bottom center of the turntable 22. A stepper motor 25 is fixedly connected to the bottom center of the hanging plate 24. The rotating shaft of the stepper motor 25 is vertically upward. The rotating shaft passes upward through the hanging plate 24 and is connected to the coupling 251 for transmission. The stepper motor 25 can drive the turntable 22 to rotate in steps through the coupling 251.

[0030] See the attached instruction manual. Figure 2 As shown, the conveying mechanism 1 is located between the hexagonal nut vibrating plate 3 and the turntable mechanism 2, and is mounted above the top of the hexagonal nut vibrator 31. The conveying mechanism 1 is used to grip the mixing screw 7 and to press and rivet with the mixing nuts 8 and hexagonal nuts 9 in the loading station 221, and is also used for picking up and placing the products after pressing and rivetizing; see the attached instruction manual. Figure 3 As shown, the conveying mechanism 1 includes a Π-shaped gantry frame 11, which is horizontally mounted directly above the hexagonal nut vibrator 31. The gantry frame 11 and the hexagonal nut vibrator 31 are designed to intersect in a cross shape. The hexagonal nut vibrator 31 passes under the bottom of the gantry frame 11 without being interfered with by the gantry frame 11. A linear module 12 is fixedly mounted on the front top of the gantry frame 11 along its left and right length. A base plate 13 is fixedly connected to the slide of the linear module 12. The linear module 12 can drive the base plate 13 to move left and right linearly through its slide. The base plate 13 is horizontally mounted, and a vertically mounted lifting cylinder 14 is located at the center of its top. The lifting cylinder 14 moves synchronously with the base plate 13. The piston rod of the lifting cylinder 14 is vertically downward, and the end of the piston rod passes downward through a pre-set transition on the base plate 13. The hole is fixedly connected to the connecting seat 15 located directly below the base plate 13. To facilitate the connection of the connecting seat 15, two guide connecting holes with vertical communication are symmetrically arranged on the left and right sides of the lifting cylinder on the base plate 13. A guide sleeve 161 is fixedly connected to the guide connecting hole. A guide post 16 is slidably engaged with the guide sleeve 161. The bottom of the guide post 16 passes through the guide sleeve 161 and is fixedly connected to the connecting seat 15. The straightness of the connecting seat 15 when moving up and down can be ensured by the cooperating guide post 16 and guide sleeve 161. In order to facilitate the gripping of the mixing screw 7, a gripper cylinder 17 is provided at the center of the bottom of the connecting seat 15. The gripper 171 on the gripper cylinder 17 points downward. The gripper cylinder 17 can easily grip the vertically placed mixing screw 7 through the gripper 171 at its bottom.

[0031] See the attached instruction manual. Figure 1 and 2 As shown, the output machine 5 is located on the left side of the turntable mechanism 2 near the front end, and its rear end corresponds to the front of the conveying mechanism 1 near the left end. The mixing nut vibrator 41 is located between the conveying mechanism 1 and the output machine 5. The output machine 5 is used for outputting the riveted product and will not interfere with the mixing nut vibrator 41. See the attached manual. Figure 5As shown, the output machine 5 includes a frame 51, which is arranged longitudinally front to back. Two symmetrically arranged pulleys are located at both ends of the top of the frame 51. A conveyor belt 53 is sleeved around the two pulleys. The top of the conveyor belt 53 is horizontal. To prevent products from falling off the conveyor belt 53 after riveting, limiting bars 54 are fixedly connected to the top of the frame 51 on both sides of the conveyor belt 53. A guide groove 541 is formed between the two limiting bars 54. The guide groove 541 corresponds vertically to the top surface of the conveyor belt 53. The riveted product is placed inside the guide groove 541. When transported by the conveyor belt 53, the guide groove 541 can limit the position of its two sides, ensuring that the product does not fall outside the conveyor belt 53. Simultaneously, limit blocks are provided at both the front and rear ends of the guide groove 541. These limit blocks are fixedly installed at the ends of the limit bars 54 to limit the position of both ends of the guide groove 541. Furthermore, to facilitate the smooth placement of the product into the guide groove 541 by the handling mechanism 1, the guide groove 54... The end of the turntable mechanism 2 has an "eight"-shaped opening. To facilitate timely removal of products transported to the rear of the guide groove 541, a position sensor 55 is installed at the top of the limit stop bar 54 near the front end. The position sensor 55 is connected to an external control system for subsequent robot material handling. To drive the conveyor belt 53, a driven gear 531 is installed on one side of the frame 51 corresponding to the front pulley, and is driven by the pulley shaft. The driven gear 531 rotates synchronously with the corresponding pulley shaft. A drive gear 521 is installed on the same side of the frame 51 as the driven gear 531, near the bottom of the frame 51, and is connected to the driven gear 531 via a toothed transmission belt 522. A servo motor 52 is fixedly connected to the driven gear 531 on the other side of the frame 51. The drive shaft of the servo motor 52 passes through the frame 51 and is fixedly connected to the drive gear 521 on the other side of the frame 51.

[0032] For the convenience of collecting defective products, please refer to the instruction manual appendix. Figure 2 As shown, a defective product storage mechanism 6 is provided between the mixing nut vibrator 41 and the output machine 5. The defective product storage mechanism 6 consists of a conduit 61 and a storage box 62. The conduit 61 is obliquely arranged, and its upper and lower ends are connected to each other. The part of the conduit 61 near the left end of the conveying mechanism 1 has its upper opening facing upward and its lower opening facing downward. The storage box 62 is located below the bottom of the conduit 61.

[0033] The specific working principle is as follows: The mixing nut vibrating plate 4 feeds the mixing nut 8 to the feeding station corresponding to the first feed port 231 on the turntable 22 through the mixing nut direct vibrator 41. The hexagonal nut vibrating plate 3 feeds the hexagonal nut 9 to the feeding station corresponding to the second feed port 232 on the turntable 22 through the hexagonal nut direct vibrator 31. After feeding, the stepper motor 25 drives the turntable 22 to rotate clockwise horizontally through the coupling 251. The turntable 22 drives the mixing nut 8 and hexagonal nut 9 in its feeding station 221 to move synchronously. At the same time, the gripper cylinder 17 in the conveying mechanism 1 moves the gripped mixing screw 7 to the top of the other feeding station 221 corresponding to the first feed port 231 through the gripper 171. When the mixing nut 8 in the feeding station 221 moves to the bottom of the mixing screw 7, the lifting cylinder 14 drives the gripper cylinder 17 to descend. The gripper cylinder 17 drives the mixing screw 7 to the top of the feeding station 221. The mixing nut 8 at its bottom engages with the mixing screw 7. After engagement, the mixing nut 8 and the mixing screw 7 are combined. The lifting cylinder 14 drives the combined mixing screw 7 and mixing nut 8 to rise synchronously. Then, the turntable 22 continues to rotate, and the hexagonal nut 9 in the loading station 221 enters the bottom of the mixing screw 7. Then, the lifting cylinder 14 drives the previously combined mixing screw 7 and mixing nut 8 to drop synchronously. The lower end of the mixing screw 7, located below the mixing nut 8, is riveted to the hexagonal nut 9, thus completing the riveting assembly of the mixing screw 7, mixing nut 8, and hexagonal nut 9. After the hexagonal nut 9 is riveted, the lifting cylinder 14 drives the combined product to rise. At the same time, the linear module 12 drives the lifting cylinder 14 and the product to move synchronously to the top of the output machine 5. The gripper cylinder 17 places the riveted product in the guide groove 541 and outputs it through the conveyor belt 53.

[0034] This mixing valve nut riveting mechanism can automatically feed hexagonal nuts and mixing nuts through a hexagonal nut vibrating plate and a mixing nut vibrating plate. The conveying mechanism can easily grasp the mixing screw and press-fit it with the mixing nut and hexagonal nut. It realizes automatic feeding and automatic assembly between the mixing screw and the mixing nut machine hexagonal nut. It has a high degree of automation, saves labor, reduces the production cost of mixing valves, and improves the production and processing efficiency of products.

[0035] It should be emphasized that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A riveting mechanism for a mixing valve nut, characterized in that: The system comprises a conveying mechanism (1), a turntable mechanism (2), a hexagonal nut vibrating plate (3), a mixing nut vibrating plate (4), and an output machine (5). The mixing nut vibrating plate (4) and the hexagonal nut vibrating plate (3) are arranged at a 90° angle on the left and rear sides of the turntable mechanism (2), respectively. The mixing nut vibrating plate (4) and the hexagonal nut vibrating plate (3) are connected to the turntable mechanism (2) through a mixing nut direct vibrator (41) and a hexagonal nut direct vibrator (31), respectively. The conveying mechanism (1) is located between the hexagonal nut vibrating plate (3) and the turntable mechanism (2), and is mounted on top of the hexagonal nut direct vibrator (31). The output machine (5) is located on the left side of the turntable mechanism (2) near the front end, and its rear end corresponds to the front side of the conveying mechanism (1) near the left end. The mixing nut direct vibrator (41) Between the conveying mechanism (1) and the output machine (5); the turntable mechanism (2) includes a bracket (21), and a turntable (22) that can rotate horizontally is provided at the top center of the bracket (21). The turntable (22) has four U-shaped concave loading stations (221) arranged in a circular array on its outer periphery. A hanging plate (24) is suspended inside the bracket (21) by a vertically arranged hanging rod (241). The top of the hanging plate (24) has a vertically arranged coupling (251). The top of the coupling (251) passes through the top surface of the bracket (21) and is fixedly connected to the bottom center of the turntable (22). A stepper motor (25) is fixedly connected to the bottom center of the hanging plate (24). The rotating shaft of the stepper motor (25) is vertically upward, and the rotating shaft passes upward through the hanging plate (24) and is connected to the coupling (251) for transmission.

2. The mixing valve nut riveting mechanism according to claim 1, characterized in that: The turntable (22) is fitted with a limiting block (23) that is clearance-fitted to it. The limiting block (23) has a first feed port (231) at the center of its left side and a second feed port (232) at the center of its rear side. The first feed port (231) corresponds to the rear end of the mixing nut vibrator (41), and the second feed port (232) corresponds to the rear end of the hexagonal nut vibrator (31).

3. The mixing valve nut riveting mechanism according to claim 1, characterized in that: The conveying mechanism (1) includes a gantry frame (11) in the shape of "Π". The gantry frame (11) is horizontally mounted directly above the hexagonal nut vibrator (31). A linear module (12) is fixedly installed on the front top of the gantry frame (11) along its left and right length direction. A base plate (13) is fixedly connected to the slide of the linear module (12). The base plate (13) is horizontally mounted, and a vertically mounted lifting cylinder (14) is located at the center of its top. The piston rod of the lifting cylinder (14) is vertically downward. The end of the piston rod passes downward through a pre-set transition hole on the base plate (13) and is fixedly connected to a connecting seat (15) located directly below the base plate (13). A gripper cylinder (17) is located at the center of the bottom of the connecting seat (15). The gripper (171) on the gripper cylinder (17) is downward.

4. The mixing valve nut riveting mechanism according to claim 3, characterized in that: The base plate (13) is symmetrically provided with two guide connection holes that are connected vertically on the left and right sides of the lifting cylinder. A guide sleeve (161) is fixedly connected to the guide connection hole. A guide post (16) is provided in the guide sleeve (161) and slides vertically with it. The bottom of the guide post (16) passes through the guide sleeve (161) and is fixedly connected to the connecting seat (15).

5. The mixing valve nut riveting mechanism according to claim 1, characterized in that: The output unit (5) includes a frame (51), which is arranged longitudinally front and back. Two symmetrical pulleys are provided at both ends of its top. A conveyor belt (53) is sleeved on the outside of the two pulleys. A driven gear (531) is provided on one side of the frame (51) corresponding to the front pulley and is connected to the pulley for transmission. A driving gear (521) is provided on the frame (51) on the same side as the driven gear (531). The driving gear (521) and the driven gear (531) are connected by a toothed transmission belt (522). A servo motor (52) is provided on the other side of the frame (51) opposite to the driven gear (531) and is fixedly connected to it. The drive shaft of the servo motor (52) passes through the frame (51) and is fixedly connected to the driving gear (521) on the other side of the frame (51).

6. The riveting mechanism for a mixing valve nut according to claim 5, characterized in that: The top of the frame (51) is provided with limiting bars (54) fixedly connected to both sides of the conveyor belt (53), and a guide groove (541) is formed between the two limiting bars (54), and the guide groove (541) corresponds to the top surface of the conveyor belt (53).

7. The mixing valve nut riveting mechanism according to claim 6, characterized in that: A position sensor (55) is provided at the top of the limit bar (54) near the front end.

8. The mixing valve nut riveting mechanism according to claim 1, characterized in that: A defective product storage mechanism (6) is provided between the mixing nut vibrator (41) and the output machine (5). The defective product storage mechanism (6) consists of a conduit (61) and a storage box (62). The conduit (61) is set at an angle, and its upper and lower ends are connected to each other. The storage box (62) is located below the bottom of the conduit (61).

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