Multi-station rotary table nut riveting and pressing device

Abstract

The utility model provides a kind of multi-station turntable type nut riveting press device, belong to mechanical technical field.It solves the existing nut riveting press production efficiency low etc.Problems.This multi-station turntable type nut riveting press device includes base box, the top of base box is equipped with driving base, the top of driving base left and right sides driving shaft is equipped with protractor, protractor top is inserted and is equipped with tool holder, the inner chamber of protractor top is equipped with positioning mechanism, the top of driving base is equipped with rack, the left and right sides of rack top are all equipped with riveting cylinder, the output end of riveting cylinder is fixedly installed with pressure head, the left and right sides of the rear side of rack bottom are all fixedly connected with material blocking component, the left and right sides of the front side of rack bottom are all fixedly installed with first cylinder push rod, second cylinder push rod and visual detection module, the bottom of first cylinder push rod is equipped with inductance type proximity sensor by bolt.The utility model has the advantages of high production efficiency, can improve yield etc.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, and specifically relates to a multi-station rotary nut riveting device. Background Technology

[0002] Mechanical assembly refers to the connection of mechanical parts or components according to the design technical requirements. In the processing of mechanical parts, nut riveting is a common process used to fix nuts to workpieces. That is, the nut is placed in a designated position on the workpiece and then pressed in by riveting equipment.

[0003] For example, Chinese patent literature discloses a copper plate nut riveting device [Application No.: 202322212575.7; Authorization Announcement No.: CN22067926U], which includes a rotary feeder, a nut feeding assembly, a copper plate feeding assembly, a pre-pressing mechanism, and a riveting machine; the nut feeding assembly is located directly above the copper plate feeding assembly and is connected to the rotary feeder, which is used to feed nuts into the nut feeding assembly; the pre-pressing mechanism is used to pre-press the nuts in the nut feeding assembly onto the copper plates on the copper plate feeding assembly; the copper plate feeding assembly passes through the riveting machine.

[0004] The aforementioned copper plate nut riveting device can save processing time and reduce the labor burden of workers. However, it is a single-station design with low production efficiency. Each station can only process one workpiece at a time, which is difficult to meet the needs of large-scale production. At the same time, it does not have an automatic detection function. After riveting, manual or offline equipment inspection is required, which can easily lead to defective products flowing into downstream processes and quality control being lagging behind. In order to solve the above technical problems, we have designed a multi-station rotary nut riveting device. Summary of the Invention

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a multi-station rotary nut riveting device that adopts a multi-station rotary structure, allows multiple stations to operate in parallel, improves production efficiency, integrates visual inspection functions, automatically rejects defective products, reduces human error, and improves product yield.

[0006] The objective of this utility model can be achieved through the following technical solution: A multi-station rotary nut riveting device includes a base box, a drive base is bolted to the top of the base box, an indexing plate is mounted on the top of the drive shafts on both sides of the drive base, a tooling seat is inserted into the top of the indexing plate, a positioning mechanism is installed in the inner cavity of the top of the indexing plate, a frame is bolted to the top of the drive base, a riveting cylinder is bolted to the left and right sides of the top of the frame, a pressure head is fixedly mounted on the output end of the riveting cylinder, a material stop assembly is fixedly connected to the left and right sides of the rear side of the bottom of the frame, a first cylinder push rod, a second cylinder push rod and a vision inspection module are fixedly mounted on the left and right sides of the front side of the bottom of the frame, and an inductive proximity sensor is bolted to the bottom of the first cylinder push rod.

[0007] This multi-station rotary nut riveting device, through the coordinated use of an indexing plate, a first cylinder push rod, a material stop assembly, a second cylinder push rod, an inductive proximity sensor, and a vision inspection module, has the advantages of adopting a multi-station rotary structure, allowing multiple stations to operate in parallel, improving production efficiency, integrating vision inspection functions, automatically rejecting defective products, reducing human error, and improving product yield.

[0008] In the aforementioned multi-station rotary nut riveting device, the positioning mechanism includes a positioning plate. A pull rod and a positioning spring are fixedly connected to the outer side of the positioning plate, and the outer side of the pull rod extends through to the outer side of the indexing plate. By pulling the pull rod outwards, the positioning plate is moved out of the mounting slot, allowing the tooling base to be removed and replaced.

[0009] In the above-mentioned multi-station rotary nut riveting device, the top of the indexing plate is provided with an installation slot, and the number of the tooling base, positioning mechanism and installation slot are all five.

[0010] In the aforementioned multi-station rotary nut riveting device, the tooling base includes a tooling clamp, with rubber blocks fixedly embedded on both sides of the outer opening of the tooling clamp, and a mounting plate welded to the bottom of the tooling clamp. By setting the rubber blocks, they can deform through their own elasticity, facilitating the ejection of the workpiece from the tooling clamp, and allowing it to return to its original shape after ejection. The surface of the mounting plate has insertion holes, allowing a positioning plate to pass through and position the workpiece.

[0011] In the aforementioned multi-station rotary nut riveting device, the material-stopping assembly includes a fixed insert housing. A material-stopping plate is slidably inserted into the bottom of the inner cavity of the fixed insert housing, and a positioning bolt is threaded through the bottom of the rear side of the fixed insert housing. By loosening the positioning bolt, the material-stopping plate can be adjusted upwards or downwards, making it suitable for tooling seats of different heights and improving versatility.

[0012] In the aforementioned multi-station rotary nut riveting device, vibratory feeding components are bolted to the left and right sides of the rear top of the base box, and unloading slides are bolted to the left and right sides of the front top of the drive base. By providing unloading slides, it is easy to transport workpieces to their respective collection boxes.

[0013] In the above-mentioned multi-station rotary nut riveting device, the main control box module is installed on the right side of the top of the base box by bolts. The output terminals of the inductive proximity sensor and the vision inspection module are electrically connected to the main control box module. The output terminal of the main control box module is electrically connected to the first cylinder push rod, the second cylinder push rod, the riveting cylinder and the drive base, respectively.

[0014] Compared with existing technologies, this multi-station rotary nut riveting device, through the coordinated use of an indexing plate, a first cylinder push rod, a material stop assembly, a second cylinder push rod, an inductive proximity sensor, and a vision inspection module, has the advantages of adopting a multi-station rotary structure, allowing multiple stations to operate in parallel, improving production efficiency, integrating vision inspection functions, automatically rejecting defective products, reducing human error, and improving product yield. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the structure of this utility model.

[0016] Figure 2 This is a rear axonometric view of a partial structure of this utility model.

[0017] Figure 3 This is a top axonometric view of the indexing plate and tooling base of this utility model.

[0018] Figure 4 This utility model Figure 3 A magnified view of A in the middle.

[0019] Figure 5 This is an isometric view of the tooling base of this utility model.

[0020] Figure 6 This is a front axonometric view of the indexing plate and frame of this utility model.

[0021] In the diagram: 1. Base box; 2. Frame; 3. Indexing plate; 4. Feeding slide; 5. Riveting cylinder; 6. Vibration feeding assembly; 7. Main control box module; 8. First cylinder push rod; 9. Material stop assembly; 10. Positioning mechanism; 11. Drive base; 12. Press head; 13. Second cylinder push rod; 14. Tooling seat; 15. Pull rod; 16. Positioning spring; 17. Positioning insert plate; 18. Mounting slot; 19. Rubber block; 20. Tooling clamp; 21. Mounting insert plate; 22. Fixed insert shell; 23. Positioning bolt; 24. Material stop plate; 25. Inductive proximity sensor; 26. Vision inspection module. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this multi-station rotary nut riveting device includes a base box 1. A drive base 11, a servo motor assembly, is bolted to the top of the base box 1. Indexing discs 3, CNC indexing discs, are mounted on the top of the drive shafts on both sides of the drive base 11. Each indexing disc 3 includes a body and a transmission mechanism. The servo motor drives the disc surface to rotate intermittently, rotating one station angle at a time, thus enabling the transfer of workpieces between different processes. A tooling seat 14 is inserted and mounted on the top of the indexing disc 3. A positioning mechanism 10 is installed in the inner cavity of the top of the indexing disc 3. A frame 2 is bolted to the top of the drive base 11. The frame 2 has indexing discs on both the left and right sides of its top. A riveting cylinder 5 is installed through bolts, and a pressure head 12 is fixedly installed at the output end of the riveting cylinder 5. A baffle assembly 9 is fixedly connected to both the left and right sides of the rear bottom of the frame 2. By setting the baffle assembly 9, the nuts that slide off the vibrating feeding assembly 6 can be blocked and limited to prevent them from moving to other positions and affecting the riveting. A first cylinder push rod 8, a second cylinder push rod 13, and a vision inspection module 26 are fixedly installed on both the left and right sides of the front bottom of the frame 2. The vision inspection module 26 includes an industrial camera, a light source, and an image analysis module. An inductive proximity sensor 25 is installed at the bottom of the first cylinder push rod 8 through bolts.

[0024] In actual manufacturing, the positioning mechanism 10 includes a positioning insert plate 17. A pull rod 15 and a positioning spring 16 are fixedly connected to the outer side of the positioning insert plate 17, and the outer side of the pull rod 15 extends to the outer side of the indexing plate 3. The top of the indexing plate 3 is provided with a mounting slot 18. There are five tooling bases 14, positioning mechanisms 10, and mounting slots 18. The tooling base 14 includes a tooling clamp 20. Rubber blocks 19 are fixedly embedded on both sides of the outer opening of the tooling clamp 20, and a mounting insert plate 21 is welded to the bottom of the tooling clamp 20.

[0025] The material blocking assembly 9 includes a fixed insert shell 22, a material blocking plate 24 is slidably inserted into the bottom of the inner cavity of the fixed insert shell 22, and a positioning bolt 23 is threaded through the bottom of the rear side of the fixed insert shell 22. The vibratory feeding assembly 6 is bolted to both the left and right sides of the rear top of the base box 1, and the material feeding slide shell 4 is bolted to both the left and right sides of the front top of the drive base 11.

[0026] The main control module 7 is bolted to the right side of the top of the base box 1. It adopts a PLC controller. The output terminals of the inductive proximity sensor 25 and the vision inspection module 26 are electrically connected to the main control module 7. The output terminals of the main control module 7 are electrically connected to the first cylinder push rod 8, the second cylinder push rod 13, the riveting cylinder 5 and the drive base 11 respectively, so as to realize the coordinated control and data interaction of the components.

[0027] In use, this device is powered by an external power source. Manually or with a robotic arm, the workpiece to be riveted is placed on the tooling base 14 from the outside of the indexing plates 3 on both sides. The control drive base 11 drives the indexing plates 3 to rotate inwards, sequentially transferring the workpieces to the rear. The vibrating feeding assembly 6 uses a vibrating plate to transport the nuts in an orderly manner, which then slides down the feeding track to the riveting position of the workpiece. As the indexing plates 3 continue to rotate inwards, the workpiece is positioned directly below the pressing head 12. The riveting cylinder 5 drives the pressing head 12 downwards, completing the nut riveting. The multi-station rotary table structure improves production efficiency. The riveted workpiece continues to rotate to the area directly below the vision inspection module 26. The vision inspection module 26 acquires images and analyzes the nut's position and appearance, transmitting the inspection information to the main control box module 7. When the inspection is successful... The indexing plate 3 continues to rotate to the front of the first cylinder push rod 8. At this time, the inductive proximity sensor 25 detects that a workpiece is in front and transmits the information to the main control box module 7. The main control box module 7 controls the first cylinder push rod 8 to push the workpiece out of the fixture 14 and drop it into the good product collection box through the outer unloading slide 4. When the vision inspection module 26 detects that the workpiece is unqualified, it transmits the information to the main control box module 7. The main control box module 7 controls the second cylinder push rod 13 to push the workpiece out of the fixture 14 and drop it into the defective product collection box through the inner unloading slide 4. In this way, defective products can be automatically rejected through the vision inspection function, reducing human error. Moreover, the station switching can be completed automatically without manual intervention, realizing full-process automation.

[0028] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A multi-station rotary nut riveting device, comprising a base box (1), characterized in that: The top of the base box (1) is bolted with a drive base (11). The top of the drive shafts on both sides of the drive base (11) is mounted with indexing plates (3). The top of the indexing plates (3) is inserted with a tooling seat (14). The inner cavity of the top of the indexing plates (3) is mounted with a positioning mechanism (10). The top of the drive base (11) is bolted with a frame (2). The top of the frame (2) is bolted with riveting cylinders (5). The output end of the riveting cylinders (5) is fixedly mounted with a pressure head (12). The bottom rear side of the frame (2) is fixedly connected with a baffle assembly (9). The bottom front side of the frame (2) is fixedly mounted with a first cylinder push rod (8), a second cylinder push rod (13) and a vision inspection module (26). The bottom of the first cylinder push rod (8) is bolted with an inductive proximity sensor (25).

2. The multi-station rotary nut riveting device according to claim 1, characterized in that: The positioning mechanism (10) includes a positioning insert plate (17), and a pull rod (15) and a positioning spring (16) are fixedly connected to the outer side of the positioning insert plate (17), and the outer side of the pull rod (15) extends through to the outer side of the indexing plate (3).

3. The multi-station rotary nut riveting device according to claim 1, characterized in that: The indexing plate (3) has a mounting slot (18) on its top, and the tooling base (14), positioning mechanism (10) and mounting slot (18) are all five in number.

4. The multi-station rotary nut riveting device according to claim 1, characterized in that: The tooling base (14) includes a tooling clamp (20), and rubber blocks (19) are fixedly embedded on both sides of the outer opening of the tooling clamp (20). A mounting plate (21) is welded to the bottom of the tooling clamp (20).

5. The multi-station rotary nut riveting device according to claim 1, characterized in that: The baffle assembly (9) includes a fixed insert shell (22), a baffle plate (24) is slidably inserted into the bottom of the inner cavity of the fixed insert shell (22), and a positioning bolt (23) is threaded through the bottom of the rear side of the fixed insert shell (22).

6. The multi-station rotary nut riveting device according to claim 1, characterized in that: Vibration feeding assembly (6) is bolted to the left and right sides of the rear top of the base box (1), and feeding slide shell (4) is bolted to the left and right sides of the front top of the drive base (11).

7. The multi-station rotary nut riveting device according to claim 1, characterized in that: The main control box module (7) is bolted to the right side of the top of the base box (1). The output ends of the inductive proximity sensor (25) and the vision detection module (26) are electrically connected to the main control box module (7). The output ends of the main control box module (7) are electrically connected to the first cylinder push rod (8), the second cylinder push rod (13), the riveting cylinder (5), and the drive base (11), respectively.

Images