A pin feeding and pressing device

Abstract

This utility model discloses a pin feeding and pressing device, relating to the field of automated assembly technology. It includes an L-shaped mounting base, a connector, a pushing mechanism, and a positioning buffer mechanism. The upper surface of the L-shaped mounting base has a through groove for dropping pins at its right end. A connector is fixedly connected above the through groove, and the connector communicates with the output end of an external automatic pin blowing machine. A pushing mechanism is located below the L-shaped mounting base. This utility model provides an efficient, stable, and safe automatic pin feeding and pressing device. The device uses an automatic pin blowing machine to feed pins into a dropping groove formed by a rotating arm via the connector, achieving automated feeding, significantly improving efficiency and reducing labor intensity. Subsequently, driven by a push cylinder, the pushing mechanism smoothly and accurately transports the pins along the guide rail to below the upper pressing head. The entire process requires no manual intervention, reducing safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly technology, specifically a pin feeding and pressing device. Background Technology

[0002] In machining and product assembly, pressing standard parts such as pins and rivets into designated holes in workpieces is a very common process. Currently, this process is mainly accomplished manually or semi-automatically.

[0003] In traditional manual operation, operators typically pick up small pins by hand or tweezers, align them with the mounting holes on the workpiece by sight and touch, and then start the press to install them. This method has obvious drawbacks:

[0004] 1. Low efficiency: The speed of manual material handling and alignment is limited, which cannot meet the cycle time requirements of large-scale production, resulting in very low overall work efficiency.

[0005] 2. Unstable quality: Manual operation makes it difficult to accurately control the depth and verticality of each pressing, which can easily lead to inconsistent product quality and affect the reliability of the final assembly.

[0006] 3. High labor intensity and safety risks: Operators need to perform repetitive and monotonous actions for long periods of time, resulting in high labor intensity and easy fatigue. Furthermore, when working with stamping equipment, a lack of concentration or operational errors can lead to safety accidents and cause injury.

[0007] To address these issues, the industry has developed some automated equipment, such as using vibratory feeders for automatic sorting and feeding. However, some existing automation solutions still have shortcomings: some mechanisms only achieve automatic sorting and conveying of pins, but are not reliable enough in the transfer from the feeding station to the pressing station and in the precise connection with the pressing head. They are prone to problems such as pins falling off or deflection during high-speed movement, leading to equipment downtime and still requiring manual intervention.

[0008] To address this, we propose a pin feeding and pressing device. Utility Model Content

[0009] 1. The problem to be solved

[0010] In view of the problems existing in the prior art, the purpose of this utility model is to provide a pin feeding and pressing device to solve the problems mentioned in the background art.

[0011] 2. Technical Solution

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A pin feeding and pressing device includes an L-shaped mounting base, a connector, a pushing mechanism, and a positioning buffer mechanism. The upper surface of the L-shaped mounting base has a through groove on the right end for dropping pins. A connector is fixedly connected above the through groove, and the connector communicates with the output end of an external automatic pin blowing machine. A pushing mechanism is located below the L-shaped mounting base. The pushing mechanism includes a pushing cylinder, a connecting plate, a moving plate, a pusher plate, and a rotating arm. A mounting frame is fixedly connected to the lower surface of the L-shaped mounting base. A pushing cylinder is fixedly connected to the left side of the mounting frame, and the output end of the pushing cylinder passes through the middle of the mounting frame and is fixedly connected to the connecting plate. A moving plate is fixedly connected to the side of the connecting plate. Two pushers are fixedly connected to the front end of the moving plate. A rotating arm is rotatably connected to the pusher plate via a rotating shaft. The tops of both rotating arms have grooves. When the two rotating arms are closed, the grooves at their tops together form a dropping groove. A positioning buffer mechanism is fixedly connected to the L-shaped mounting base. The upper pressing head is fixedly connected to the output end of an external hydraulic cylinder.

[0014] As a further embodiment of this utility model: the material discharge chute is located directly below the joint.

[0015] As a further embodiment of this utility model: a torsion spring is threaded on the outer side of the rotating shaft, so that when in its natural state, the contact surfaces of the two rotating arms are in contact with each other and are in a horizontal state.

[0016] As a further embodiment of this utility model: a mounting block is fixedly connected to the lower surface of the L-shaped mounting base, a guide rail is fixedly connected to the lower surface of the mounting block, and a sliding groove is provided on the upper surface of the movable plate, and the movable plate is slidably connected to the guide rail through the sliding groove.

[0017] As a further embodiment of this utility model: the positioning buffer mechanism includes a baffle and a hydraulic buffer. The baffle is fixedly connected to the left side of the L-shaped mounting base, and a mounting groove is opened in the middle of the baffle. A hydraulic buffer is fixedly connected in the mounting groove.

[0018] As a further embodiment of this utility model: the lower surface of the upper pressure head is provided with a mounting groove, and a positioning sleeve with magnetic adsorption is fixedly connected in the mounting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model provides an efficient, stable and safe automatic pin feeding and pressing device. The device uses an automatic pin blowing machine to feed the pins into the dropping groove formed by the rotating arm through the joint, realizing automated feeding, significantly improving efficiency and reducing labor intensity. Subsequently, driven by the push cylinder, the pushing mechanism smoothly and accurately transports the pins to the bottom of the upper pressing head along the guide rail. The whole process does not require manual intervention, reducing safety hazards.

[0021] 2. To ensure operational reliability, this utility model features a positioning and buffering mechanism composed of a baffle and a hydraulic buffer. This mechanism absorbs the impact when the feeding mechanism reaches its position, ensuring positioning accuracy and equipment durability. Furthermore, the lower end of the upper press head is equipped with a positioning sleeve with magnetic adsorption function. This positioning sleeve can actively adsorb and fix the pin before pressing, while also serving as a guide and self-centering mechanism. This solves the problem of pins falling off or deviating during the handover process, thus providing a guarantee for automated pressing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a pin feeding and pressing device.

[0023] Figure 2 A schematic diagram of a pin feeding and pressing device with the L-shaped mounting base removed;

[0024] Figure 3 A detailed structural diagram of the guide rail and moving plate in a pin feeding and pressing device;

[0025] Figure 4 This is a schematic diagram of the upper pressure head and positioning sleeve in a pin feeding and pressing device.

[0026] In the diagram: 1. L-shaped mounting base; 2. Push cylinder; 3. Mounting frame; 4. Connecting plate; 5. Baffle; 6. Hydraulic buffer; 7. Connector; 8. Upper pressure head; 9. Push plate; 10. Rotating shaft; 11. Rotating arm; 12. Material drop chute; 13. Moving plate; 14. Guide rail; 15. Positioning sleeve; 16. Torsion spring; 17. Mounting block. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figures 1-4 In this embodiment of the utility model, a pin feeding and pressing device includes an L-shaped mounting base 1, a connector 7, a pushing mechanism, and a positioning buffer mechanism.

[0029] The upper surface of the L-shaped mounting base 1 has a through groove for dropping pins at the right end. A connector 7 is fixedly connected above the through groove, and the connector 7 is connected to the output end of an external automatic pin blowing machine. A pushing mechanism is provided below the L-shaped mounting base 1. The pushing mechanism includes a pushing cylinder 2, a connecting plate 4, a moving plate 13, a push plate 9, and a rotating arm 11. A mounting frame 3 is fixedly connected to the lower surface of the L-shaped mounting base 1. A pushing cylinder 2 is fixedly connected to the left side of the mounting frame 3, and the output end of the pushing cylinder 2 passes through the middle of the mounting frame 3 and is fixedly connected to the connecting plate 4. A moving plate 13 is fixedly connected to the side of the connecting plate 4. A mounting block 17 is fixedly connected to the lower surface of the L-shaped mounting base 1. A guide rail 14 is fixedly connected to the lower surface. A sliding groove is provided on the upper surface of the moving plate 13. The moving plate 13 is slidably connected to the guide rail 14 through the sliding groove. Two push plates 9 are fixedly connected to the front end face of the moving plate 13. A rotating arm 11 is rotatably connected to the push plate 9 through a rotating shaft 10. A torsion spring 16 is threaded on the outer side of the rotating shaft 10. When in the natural state, the contact surfaces of the two rotating arms 11 are in contact with each other and are in a horizontal state. A groove is provided on the top of each of the two rotating arms 11. When the two rotating arms 11 are closed, the grooves on their tops together form a material drop trough 12. The material drop trough 12 is located directly below the connector 7. The upper pressure head 8 is fixedly connected to the output end of the external hydraulic cylinder.

[0030] It should be noted that when this device is working, by connecting the connector 7 to the output end of an external automatic pin blowing machine (which operates in the existing technology), the automatic feeding of pins is realized. The pins will fall directly into the material dropping trough 12 formed by the closing of two rotating arms 11 through the through groove on the L-shaped mounting base 1, replacing the cumbersome and inefficient manual material picking process, improving the overall work efficiency and reducing the labor intensity of workers.

[0031] To ensure that the pin is stably received, the two rotating arms 11 are rotatably connected to the push plate 9 via the rotating shaft 10. Under the preload of the torsion spring 16, their contact surfaces can fit together in a natural state, thereby reliably forming a material drop groove 12 for receiving materials. This effectively prevents the pin from falling off and ensures the smoothness and stability of the automated process.

[0032] When the pin needs to be delivered to the pressing station (the control system, such as PLC or relay, issues a command to energize the solenoid valve of the push cylinder 2; the specific circuit connection and control logic are existing technologies well known to those skilled in the art and will not be described in detail here), the output end of the push cylinder 2 will push the connecting plate 4, which in turn drives the movable plate 13 fixed on its side to slide along the guide rail 14. Since the movable plate 13 and the guide rail 14 are slidably connected, the feeding process is guaranteed to be stable and accurate, providing a foundation for subsequent pressing. As the movable plate 13 moves, the push plate 9 at its front end and the rotating arm 11 accurately deliver the single pin to the area directly below the upper pressing head 8, completing the feeding action. The entire feeding process does not require manual intervention, which not only greatly improves work efficiency but also reduces the safety hazards that may be caused by manual operation and reduces the risk of personal injury.

[0033] A positioning buffer mechanism is fixedly connected to the L-shaped mounting base 1. The positioning buffer mechanism includes a baffle 5 and a hydraulic buffer 6. The baffle 5 is fixedly connected to the left side of the L-shaped mounting base 1. An installation groove is opened in the middle of the baffle 5. The hydraulic buffer 6 is fixedly connected in the installation groove. An installation groove is opened on the lower surface of the upper pressure head 8. A positioning sleeve 15 with magnetic adsorption is fixedly connected in the installation groove.

[0034] It should be noted that, in order to ensure that the feeding mechanism can accurately stop at the preset receiving and feeding positions during high-speed reciprocating motion, a positioning buffer mechanism consisting of a baffle 5 and a hydraulic buffer 6 is fixedly connected to the left side of the L-shaped mounting base 1. When the feeding mechanism moves to the position, it will contact the hydraulic buffer 6, and its kinetic energy will be smoothly absorbed. This not only avoids mechanical vibration and noise caused by rigid impact through buffering, effectively extending the service life of the equipment, but also ensures that each feeding can accurately stop at the end point, providing a guarantee for the alignment and handover of the pin and the upper pressure head 8.

[0035] Furthermore, after the feeding mechanism transports the pin to its lower position, the upper pressure head 8 moves downward, and the magnetically attached positioning sleeve 15 installed on its lower surface actively attracts and firmly fixes the pin from the feeding arm. This "active attraction" action solves the problem of pins falling off or tilting due to gaps or vibrations in traditional automation. At the same time, the inner hole structure of the positioning sleeve 15 plays a physical guiding and self-centering role for the pin, ensuring that the pin is absolutely vertical before being pressed into the workpiece. This combination of attraction and centering ensures the quality and consistency of the final pressing.

[0036] In summary, this utility model provides an efficient, stable, and safe automatic pin feeding and pressing device. The device uses an automatic pin blowing machine to feed the pins into the dropping groove 12 formed by the rotating arm 11 through the connector 7, realizing automated feeding, significantly improving efficiency and reducing labor intensity. Subsequently, driven by the push cylinder 2, the pushing mechanism smoothly and accurately transports the pins to the area below the upper pressing head 8 along the guide rail 14. The entire process requires no manual intervention, reducing safety hazards.

[0037] To ensure operational reliability, a positioning buffer mechanism consisting of baffle 5 and hydraulic buffer 6 absorbs the impact when the feeding mechanism reaches its position, ensuring positioning accuracy and equipment durability. The lower end of the upper pressure head 8 is equipped with a positioning sleeve 15 with magnetic adsorption function. This positioning sleeve can actively adsorb and fix the pin before pressing, while also serving as a guide and self-centering function. This solves the problem of pins falling off or deviating during the handover process, thus providing a guarantee for automated pressing.

[0038] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pin feeding and pressing device, characterized in that, include: L-shaped mounting bracket (1); The L-shaped mounting base (1) has a groove for dropping pins on the right end of its upper surface. The groove is fixedly connected to the top of the groove. The joint (7) is connected to the output end of an external automatic pin blowing machine. The material pushing mechanism is provided below the L-shaped mounting base (1). The material pushing mechanism includes a push cylinder (2), a connecting plate (4), a moving plate (13), a push plate (9), and a rotating arm (11). The lower surface of the L-shaped mounting base (1) is fixedly connected to a mounting frame (3). The left side of the mounting frame (3) is fixedly connected to a push cylinder (2), and the output end of the push cylinder (2) passes through the middle of the mounting frame (3) and is fixedly connected to a connecting plate (4). The side of the connecting plate (4) is fixedly connected to a moving plate (13). The front end of the moving plate (13) is fixedly connected to two push plates (9). The push plate (9) is rotatably connected to a rotating arm (11) via a rotating shaft (10). The top of the two rotating arms (11) is provided with a groove. When the two rotating arms (11) are closed, the grooves on their tops together form a material dropping groove (12). A positioning buffer mechanism is fixedly connected to the L-shaped mounting base (1); Upper pressure head (8) is fixedly connected to the output end of an external hydraulic cylinder.

2. The pin feeding and pressing device according to claim 1, characterized in that, The material discharge chute (12) is located directly below the connector (7).

3. The pin feeding and pressing device according to claim 1, characterized in that, A torsion spring (16) is threaded on the outside of the rotating shaft (10). When in its natural state, the contact surfaces of the two rotating arms (11) are in contact with each other and are in a horizontal state.

4. The pin feeding and pressing device according to claim 1, characterized in that, The lower surface of the L-shaped mounting base (1) is fixedly connected to a mounting block (17), and the lower surface of the mounting block (17) is fixedly connected to a guide rail (14). The upper surface of the movable plate (13) is provided with a sliding groove, and the movable plate (13) is slidably connected to the guide rail (14) through the sliding groove.

5. The pin feeding and pressing device according to claim 1, characterized in that, The positioning buffer mechanism includes a baffle (5) and a hydraulic buffer (6). The baffle (5) is fixedly connected to the left side of the L-shaped mounting base (1). A mounting groove is opened in the middle of the baffle (5), and a hydraulic buffer (6) is fixedly connected in the mounting groove.

6. The pin feeding and pressing device according to claim 1, characterized in that, The lower surface of the upper pressure head (8) is provided with an installation groove, and a positioning sleeve (15) with magnetic adsorption is fixedly connected in the installation groove.

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