Feeding mechanism of hand wheel assembling machine

Abstract

The utility model provides a feeding mechanism of a hand wheel assembling machine, and relates to the technical field of feeding of hand wheel assembling machines, the feeding mechanism comprises a processing device used for assembling a hand wheel and a mechanical arm used for loading and unloading the hand wheel, and the tail end of the mechanical arm is provided with a mounting seat. The mechanical arm can be used for switching the position of the sliding base between the machining equipment and the hand wheel containing table, the rotating shaft is installed on the sliding base, the two sets of clamping bases capable of being used for clamping the hand wheel are arranged on the rotating shaft, and therefore when the machining equipment machines the hand wheel, one clamping base on the sliding base is used for clamping the unmachined hand wheel, and the machining efficiency is improved. And the other clamping seat can directly clamp out the processed hand wheel in the processing equipment, so that the unprocessed hand wheel can be directly and quickly put into the slot position of the processing equipment after the position is adjusted by rotating the rotating shaft, namely, the processing equipment is quick in feeding and discharging processes and short in time consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding of a handwheel assembly machine, in particular to a feeding mechanism of a handwheel assembly machine. Background Art

[0002] A handwheel assembly machine is a mechanical device for automatically assembling handwheels. Handwheels are usually used on various mechanical devices as components for operators to manually control the machines. The handwheel assembly machine can improve production efficiency, reduce the labor intensity of manual operations, and ensure the consistency of assembly quality. Generally, it includes feeding, assembling, fastening, detecting, and packaging. Feeding means that the machine can automatically send each component of the handwheel (such as shafts, wheel discs, fastening nuts, etc.) to the assembly position.

[0003] For example, an automatic loading and unloading robotic arm with the publication number: CN220093929U. When a user uses this robotic arm, the robotic arm is placed on the ground or other equipment and fixed. The PLC programmable controller controls the fourth stepping motor to drive the turntable to rotate, and then drives the robotic arm to adjust its orientation. The PLC programmable controller is used to turn on the third stepping motor to drive the fixed ring to rotate and then adjust the angle of the support rod. Then, the user turns on the second stepping motor through the PLC programmable controller to drive the connecting block to rotate, and then adjusts the angle of the connecting rod. The infrared sensor enables the robotic arm to accurately align with the material to be picked up. When the alignment is completed, the PLC programmable controller will control two electric cylinders to drive the output shafts to push the clamping plates, and use rubber pads to clamp the item. Finally, the item is loaded through the second stepping motor, the third stepping motor, and the fourth stepping motor. When the user needs to adjust the angle of the clamping plate, the PLC programmable controller can control the first stepping motor to drive the rotating rod to rotate the connecting rod, and then adjust the clamping angle of the clamping plate.

[0004] However, in the prior art during use, since there is only one clamping plate, when loading and unloading, it is necessary to first clamp the object in the equipment to the next process, and then pick up a new object from the workpiece table and place it in the equipment, which will waste a lot of time between loading and unloading. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a feeding mechanism of a handwheel assembly machine.

[0006] To achieve the above object, the present utility model adopts the following technical solution: a feeding mechanism of a handwheel assembling machine, including a processing device for handwheel assembling and a robotic arm for picking up and placing handwheels. An installation seat is provided at the end of the robotic arm. A U-shaped plate is rotatably connected inside the installation seat. A sliding seat is slidably connected inside the U-shaped plate. A rotating shaft is rotatably connected inside the sliding seat. Two groups of clamping seats are fixedly connected to the surface of the rotating shaft. The clamping seat mainly includes two symmetrically arranged extension plates. One end of the extension plate away from the rotating shaft is rotatably connected to a rotating arm. The swinging side of the rotating arm away from the rotating shaft is hollowed out and a clamping piece is inserted through a pin shaft. A pushing block that rotates around the center line of the rotating shaft is arranged between the two groups of clamping seats. The pushing block is used to push the swinging sides of the rotating arms located between the two extension plates in each group of clamping seats to swing, and both sides of the inner arc surface of the pushing block extend outward and are rotatably connected to the end of the shaft surface of the rotating shaft in an embedded manner.

[0007] Preferably, the opposite inner walls of the U-shaped plate are inserted into the side of the sliding seat, and an electric push rod is fixedly connected between the outer wall of the U-shaped plate and the sliding seat.

[0008] Preferably, a elastic sheet is arranged between the swinging side of the rotating arm close to the rotating shaft and the extension plate, and both sides of one side of the pushing block close to each group of clamping seats are provided with inclined surfaces.

[0009] Preferably, an insertion ring that slides along the center line direction of the rotating shaft is embedded in the shaft surface of the rotating shaft. A circular ring is rotatably connected to the outer wall of the insertion ring. First toothed rings are rotatably connected to both ends of the shaft surface of the rotating shaft in an embedded manner. A convex shaft that penetrates the side of the circular ring is integrally formed between the two first toothed rings. The side of the circular ring extends outward and is inserted into the inner arc surface of the pushing block.

[0010] Preferably, a gear column driven by a motor is also rotatably connected between the two end faces of the rotating shaft, and the gear column is meshed with the tooth surfaces of the two first toothed rings.

[0011] Preferably, a second toothed ring is fixedly connected to one end of the shaft surface of the rotating shaft, and a rack that is meshed with the second toothed ring is inserted into one side inner wall of the sliding seat.

[0012] Preferably, a spring rod is connected between one side of the rack and the inner wall of the sliding seat, and a traction rope is connected between the bottom of the tooth back of the rack and the insertion ring. The traction rope penetrates one side inner wall of the sliding seat, and one end of the rotating shaft is provided with an arc-shaped hollow through which the traction rope passes.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0014] 1. In the present utility model, by providing a robotic arm and a sliding seat, the sliding seat can be switched between the processing equipment and the handwheel placement table by using the robotic arm. Also, since a rotating shaft is installed on the sliding seat and there are two sets of clamping seats on the rotating shaft for clamping the handwheel, when the processing equipment processes the handwheel, one of the clamping seats on the sliding seat clamps the unprocessed handwheel, while the other clamping seat can directly clamp out the handwheel processed in the processing equipment. This facilitates the unprocessed handwheel to be quickly rotated and adjusted in position by the rotating shaft and then directly and quickly placed into the slot of the processing equipment, that is, the loading and unloading process of the processing equipment is fast and time-consuming is short.

[0015] 2. In the present utility model, the pin shaft passes through different hollow parts on the clamping piece and the rotating arm, which facilitates adjusting the distance between the two clamping pieces in each clamping seat, and further facilitates clamping handwheels of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the loading mechanism of a handwheel assembly machine proposed by the present utility model;

[0017] Figure 2 is a schematic structure diagram of the robotic arm of the loading mechanism of a handwheel assembly machine proposed by the present utility model;

[0018] Figure 3 is a schematic structure diagram of the U-shaped plate of the loading mechanism of a handwheel assembly machine proposed by the present utility model;

[0019] Figure 4 is a schematic bottom view structure diagram of the sliding seat;

[0020] Figure 5 is Figure 4 a schematic top cross-sectional structure diagram of

[0021] Figure 6 is Figure 4 a schematic front cross-sectional structure diagram of

[0022] LEGEND DESCRIPTION: 1. Processing equipment; 2. Robotic arm; 3. Mounting seat; 4. U-shaped plate; 5. Electric push rod; 6. Sliding seat; 7. Clamping piece; 8. Rotating arm; 9. Elastic piece; 10. Ring; 11. Insert ring; 12. Traction rope; 13. First toothed ring; 14. Extension plate; 15. Push block; 16. Rotating shaft; 17. Second toothed ring; 18. Rack; 19. Gear column; 20. Spring rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0025] As Figures 1-6 shown, a feeding mechanism of a handwheel assembling machine includes a processing device 1 for handwheel assembling and a robotic arm 2 for picking up and placing handwheels. An installation seat 3 is provided at the end of the robotic arm 2. A U-shaped plate 4 is rotatably connected inside the installation seat 3. A sliding seat 6 is slidably connected inside the U-shaped plate 4. The opposite inner walls of the U-shaped plate 4 are inserted into the sides of the sliding seat 6, and an electric push rod 5 is fixedly connected between the outer wall of the U-shaped plate 4 and the sliding seat 6. The processing device 1 can select mechanical equipment for handwheel assembling on the market, and the robotic arm 2 can select known intelligent robotic arms on the market. The U-shaped plate 4 and the sliding seat 6 inside it are switched between the processing device 1 and the handwheel workpiece placement table by using the robotic arm 2, that is, the handwheel is clamped from the placement table into the processing device 1 or the assembled handwheel is clamped and transported from the processing device 1 to the placement table by using the structure on the sliding seat 6:

[0026] A rotating shaft 16 is rotatably connected inside the sliding seat 6. Two groups of clamping seats are fixedly connected to the surface of the rotating shaft 16. The clamping seats mainly include two symmetrically arranged extension plates 14. A rotating arm 8 is rotatably connected to the end of the extension plate 14 away from the rotating shaft 16. The swinging side of the rotating arm 8 away from the rotating shaft 16 is hollowed out, and a clamping piece 7 is inserted through a pin shaft. As Figure 3 shown, by passing the pin shaft through different hollowed-out parts on the clamping piece 7 and the rotating arm 8, it is convenient to adjust the distance between the two clamping pieces 7 in each group of clamping seats, and thus it is convenient to clamp handwheels of different sizes. A spring piece 9 is provided between the swinging side of the rotating arm 8 close to the rotating shaft 16 and the extension plate 14. Both sides of the spring piece 9 are respectively fixed on the rotating arm 8 and the extension plate 14. Therefore, the initial position of the rotating arm 8 is conveniently ensured by using the provided spring piece 9. When the swinging side of the rotating arm 8 located between the two extension plates 14 overcomes the elastic force of the spring piece 9 and swings towards the extension plate 14 under the action of an external force, the swinging sides located outside the two extension plates 14 will approach each other to clamp the surface of the handwheel:

[0027] A push block 15 that rotates around the center line of the rotating shaft 16 is provided between the two groups of clamping seats. The push block 15 is used to push the swinging side of the rotating arm 8 located between the two extension plates 14 in each group of clamping seats to swing, and both sides of the inner arc surface of the push block 15 are rotatably connected to the end of the axial surface of the rotating shaft 16 by being embedded outward, ensuring the relative position stability of the push block 15 and the rotating shaft 16, that is, the push block 15 can only rotate around the central axis of the rotating shaft 16. The two sides of the push block 15 close to each group of clamping seats are provided with inclined surfaces. As Figure 4As shown, when the push block 15 rotates counterclockwise, it will contact the two rotating arms 8 in the upper clamping seat. The hypotenuse of the push block 15 forces the two rotating arms 8 to rotate and open against the elastic force of the elastic piece 9. Conversely, when rotating clockwise, it will contact the two rotating arms 8 in the lower clamping seat, and the hypotenuse of the push block 15 forces the two rotating arms 8 to rotate and open against the elastic force of the elastic piece 9. An insertion ring 11 that slides along the central axis direction of the rotating shaft 16 is embedded on the axial surface of the rotating shaft 16. A circular ring 10 is rotatably connected to the outer wall of the insertion ring 11. First tooth rings 13 are embedded and rotatably connected to both ends of the axial surface of the rotating shaft 16. A convex shaft that penetrates the side of the circular ring 10 is integrally formed between the two first tooth rings 13. The side of the circular ring 10 extends outward and is inserted into the inner arc surface of the push block 15. A gear column 19 driven by a motor is also rotatably connected between the two end faces of the rotating shaft 16. The gear column 19 is meshed with the tooth surfaces of the two first tooth rings 13. By driving the gear column 19 to rotate by the motor, the two first tooth rings 13 in meshed connection are rotated. Furthermore, the protrusion between the two drives the circular ring 10 to rotate on the surface of the insertion ring 11. By using the insertion connection between the circular ring 10 and the push block 15, the circular ring 10 can drive the push block 15 to rotate and swing. Moreover, the insertion direction of the circular ring 10 and the push block 15 extends along the central axis direction of the push block 15. Therefore, the circular ring 10 can slide along with the sliding of the insertion ring 11, and the push block 15 will not swing during the sliding:

[0028] In addition: One end of the axial surface of the rotating shaft 16 is fixedly connected to a second tooth ring 17, and a rack 18 meshed with the second tooth ring 17 is inserted into one side inner wall of the sliding seat 6. A spring rod 20 is connected between one side of the rack 18 and the inner wall of the sliding seat 6, and a traction rope 12 is connected between the bottom edge of the tooth back of the rack 18 and the insertion ring 11. The traction rope 12 penetrates one side inner wall of the sliding seat 6, and one end of the rotating shaft 16 is provided with an arc-shaped hollow through which the traction rope 12 passes. An electric push rod 5 is also installed at a position on the axial surface of the rotating shaft 16 away from the second tooth ring 17, as Figure 3As shown, the electric push rod 5 at this position extends, and the insertion ring 11 moves towards the second toothed ring 17. Under the pushing action of the spring rod 20, the rack 18 pulls the relaxed traction rope 12 downward. When the rack 18 moves, it drives the second toothed ring 17 to rotate counterclockwise, thereby realizing the rotation of the rotating shaft 16, that is, realizing the position switching of the two sets of card seats. That is, among the two card seats, one set of card seats is used to clamp the handwheel, and the handwheel is placed into the processing equipment through the robotic arm 2. During the process of processing the handwheel, the robotic arm 2 adjusts the position of the sliding seat 6, and then uses one set of card seats to clamp an unprocessed handwheel and moves it to the processing equipment 1 for standby. After the handwheel in the processing equipment 1 is processed, the robotic arm 2 controls the sliding seat 6 to move into the processing equipment. Then, the rotating shaft 16 rotates to make the idle card seat move to the processed handwheel to clamp the handwheel. Then, by sliding the sliding seat 6, the processed handwheel is taken out of the processing equipment 1. Then, the rotating shaft 16 only needs to rotate a certain angle until the unprocessed handwheel clamped is aligned with the slot of the processing equipment 1, and then it can be placed into the slot of the processing equipment 1. That is, the feeding and unloading process takes a short time.

[0029] Working principle: One set of card seats moves to the placement table, and the sliding seat 6 moves so that the two clamping pieces 7 in the card seat are located on both sides of the handwheel. Then, the circular ring 10 rotates to make the push block 15 rotate to push the two rotating arms 8 in the card seat to rotate and swing, realizing that the two clamping pieces 7 overcome the elastic force of the elastic piece 9 and approach the handwheel mutually. And the robotic arm 2 delivers it to the slot of the processing equipment 1. The push block 15 in the card seat rotates in the reverse direction and resets, realizing the rotation and reset of the rotating arm 8 and releasing the clamping of the handwheel by the clamping piece 7, so that the handwheel is placed in the processing equipment 1 and clamped. When the handwheel is processed by the processing equipment 1, the robotic arm 2 is used to control the position of one set of card seats to move to the placement table, and re-clamp an unprocessed handwheel, and then rotate it to the processing equipment 1 for standby. After the processing equipment 1 finishes processing, the robotic arm 2 controls the sliding seat 6 to move to the slot of the processing equipment 1. Then, the insertion ring 11 moves to make the rotating shaft 16 rotate until another idle card seat is aligned with the slot of the processing equipment 1, and the processed handwheel is clamped by this card seat. At this time, the unprocessed handwheel on the other card seat can be quickly placed into the slot of the processing equipment 1.

[0030] The wiring diagram of the robotic arm 2, the processing equipment 1, the electric push rod 5 and the motor in the present utility model belongs to

[0031] common general knowledge in the field. Its working principle is already known technology, and its model is selected according to actual use. Therefore, the control method and wiring layout of the robotic arm 2, the processing equipment 1, the electric push rod 5 and the motor will not be explained in detail.

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as they do not depart from the technical solution content of the present utility model, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A loading mechanism of a handwheel assembly machine, comprising a processing device (1) for handwheel assembly and a mechanical arm (2) for raising and lowering the handwheel, characterized in that: A mounting seat (3) is provided at the end of the mechanical arm (2), a U-shaped plate (4) is rotatably connected inside the mounting seat (3), a slide seat (6) is slidably connected inside the U-shaped plate (4), a rotating shaft (16) is rotatably connected inside the slide seat (6), two groups of card seats are fixedly connected to the surface of the rotating shaft (16), and the card seats mainly include two symmetrically arranged extension plates (14), one end of the extension plate (14) away from the rotating shaft (16) is rotatably connected to a rotating arm (8), the swinging side of the rotating arm (8) away from the rotating shaft (16) is hollowed out, and a clip (7) is inserted through a pin shaft, and a push block (15) rotating around the center line of the rotating shaft (16) is provided between the two groups of card seats, the push block (15) is used to push the rotating arm (8) located between the two extension plates (14) in each group of card seats to swing while swinging, and the inner arc surface of the push block (15) is located on both sides of the outwardly extending and rotatably connected to the end of the axial surface of the rotating shaft (16).

2. The feeding mechanism of the hand wheel assembly machine according to claim 1, characterized in that: The opposite inner wall of the U-shaped plate (4) is plugged into the side of the slide seat (6), and an electric push rod (5) is fixedly connected between the outer wall of the U-shaped plate (4) and the slide seat (6).

3. The feeding mechanism of the hand wheel assembly machine according to claim 1, characterized in that: A spring sheet (9) is arranged between the swinging edge of the rotating arm (8) close to the rotating shaft (16) and the extension plate (14), and the push block (15) is arranged with inclined surfaces at both sides of one side close to each group of card seats.

4. The feeding mechanism of the hand wheel assembly machine according to claim 1, characterized in that: The shaft surface of the rotating shaft (16) is embedded with an insert ring (11) which slides along the center line direction of the rotating shaft (16); the outer wall of the insert ring (11) is rotatably connected to a circular ring (10); both ends of the shaft surface of the rotating shaft (16) are embedded with first toothed rings (13) which are rotatably connected; a convex shaft penetrating the side of the circular ring (10) is integrally formed between the two first toothed rings (13); the side of the circular ring (10) extends outward and is plugged into the inner arc surface of the push block (15).

5. The feeding mechanism of the hand wheel assembly machine according to claim 4, characterized in that: A gear column (19) driven by a motor is rotatably connected between the two end surfaces of the rotating shaft (16), and the gear column (19) is meshingly connected with the tooth surfaces of the two first gear rings (13).

6. The feeding mechanism of the hand wheel assembly machine according to claim 1, characterized in that: A second toothed ring (17) is fixedly connected to one end of the axial surface of the rotating shaft (16), and a toothed rack (18) meshingly connected to the second toothed ring (17) is inserted into an inner wall of one side of the sliding seat (6).

7. The feeding mechanism of the hand wheel assembly machine according to claim 6, characterized in that: A spring rod (20) is connected between one side of the rack (18) and the inner wall of the slide seat (6), and a traction rope (12) is connected between the bottom edge of the tooth back of the rack (18) and the insert ring (11). The traction rope (12) passes through the inner wall of one side of the slide seat (6), and one end of the rotating shaft (16) is an arc-shaped hollow setting that passes through the traction rope (12).

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