Automatic riveting device for electromagnetic switch upper cover connecting piece

Abstract

The utility model discloses an automatic riveting device for an electromagnetic switch upper cover connecting piece. The automatic riveting device comprises a vertical frame, a rivet arranging machine is installed on one side of the vertical frame, an air cylinder is installed at the top of the vertical frame, a telescopic rod of the air cylinder extends downwards and is connected with a riveting head, and a positioning base used for containing an electromagnetic switch upper cover is fixed to the bottom of the vertical frame. A discharging port of the rivet arranging machine is connected with a conveying plate, the conveying plate is obliquely arranged, the lower end of the conveying plate faces the riveting head, a conveying channel for rivets to pass through is arranged in the conveying plate, the section of the conveying channel is in a T shape, and an outlet of the conveying channel is located under the riveting head. According to the utility model, problems occurring in the assembling process of the electromagnetic switch upper cover connecting sheet can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic switch assembly, in particular to an automatic riveting device for a connecting piece of an electromagnetic switch upper cover. Background Technique

[0002] Simply put, an electromagnetic switch is a combination of an electromagnet and a switch. When the electromagnet coil is energized, an electromagnetic attraction force is generated, and the movable iron core pushes or pulls the switch contact to close, thereby connecting the controlled circuit.

[0003] The electromagnetic switch mainly includes an upper cover, a main body housing, a coil, a movable iron core, and a terminal. The terminal is installed on the upper cover, and the coil and the movable iron core are located inside the main body housing. The terminals installed on the upper cover include two main terminals and one auxiliary terminal, and the auxiliary terminal is in contact with one of the main terminals through a connecting piece. This connecting piece needs to be fixed to the upper cover by a rivet. Currently, the following problems occur in the process of fixing the connecting piece: 1. The rivet is usually in a nail shape, and before installation, it is necessary to distinguish the direction of the rivet; 2. The area where the rivet is installed is small, and it is easy to be misaligned. The above problems increase the operation difficulty of the operator, consume the attention of the operator relatively, and affect the assembly efficiency and assembly quality. Therefore, it is necessary to design a riveting device that can automatically distinguish the direction of the rivet and automatically rivet the rivet at the connecting piece. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic riveting device for a connecting piece of an electromagnetic switch upper cover to solve the problems occurring in the assembly process of the connecting piece of the electromagnetic switch upper cover.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] An automatic riveting device for a connecting piece of an electromagnetic switch upper cover includes a vertical frame. A rivet arranging machine is installed on one side of the vertical frame. A cylinder is installed on the top of the vertical frame. The telescopic rod of the cylinder extends downward and is connected with a riveting head. A positioning seat for placing the upper cover of the electromagnetic switch is fixed at the bottom of the vertical frame. The discharge port of the rivet arranging machine is connected with a conveying plate. The conveying plate is inclined, and the lower end of the conveying plate faces the riveting head. A conveying channel for the rivet to pass through is arranged in the conveying plate. The cross-section of the conveying channel is T-shaped, and the outlet of the conveying channel is located directly below the riveting head.

[0007] Optionally, the upper end of the conveying plate is rotatably connected with the discharge port of the rivet arranging machine. An inclined pressing plate is fixed at the lower part of the conveying plate. A roller is fixed at the lower part of the telescopic rod of the cylinder. The wheel surface of the roller is in contact with the inclined pressing plate.

[0008] Optionally, an extension rod is fixed in the middle of the conveying plate, and a return spring is fixed between the extension rod and the vertical frame.

[0009] Optionally, a top rod is also fixed on the vertical frame. The top rod faces the middle of the conveying plate. When the outlet of the conveying channel is directly below the riveting head, it is the initial position of the conveying plate. When the top of the top rod contacts the middle of the conveying plate, the conveying plate is in the initial position.

[0010] Optionally, a rubber head is fixed at the top of the top rod.

[0011] Optionally, a guide seat is fixed in the middle of the vertical frame. A vertically arranged guide hole is opened in the guide seat, and the telescopic rod of the cylinder passes through the guide hole.

[0012] Optionally, a counter is also installed on one side of the vertical frame.

[0013] Adopting the above technical solutions, the present utility model has the following advantages:

[0014] The riveting device of the present utility model can not only automatically rivet the connecting piece to the upper cover through the rivet, but also does not require the operator to distinguish the direction of the rivet by himself. At the same time, the operator does not need to manually send the rivet to the riveting position, and this action is automatically completed by the riveting device, reducing the error rate of the operator and further improving the assembly efficiency. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of one embodiment of the present utility model;

[0016] Figure 2 is a schematic cross-sectional view of the conveying plate in the present utility model;

[0017] Figure 3 is a schematic structural diagram of the upper cover of the electromagnetic switch.

[0018] Reference numerals: 1, vertical frame; 2, rivet aligning machine; 21, feed inlet; 3, cylinder; 4, riveting head; 5, positioning seat; 6, conveying plate; 7, conveying channel; 8, inclined pressing plate; 9, roller; 10, extension rod; 11, return spring; 12, top rod; 13, rubber head; 14, guide seat; 15, counter; 16, connecting piece; 17, rivet. Detailed Embodiments

[0019] In order to make the technical objectives, technical solutions and beneficial effects of the present utility model clearer, the following further describes the technical solutions of the present utility model with reference to the attached Figures 1-3 drawings and specific embodiments. Embodiment

[0020] An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch, comprising a vertical frame 1. On one side of the vertical frame 1, a rivet aligning machine 2 is installed. The structure of the rivet aligning machine 2 is the same as that of a screw aligning machine, which belongs to the prior art. The specific structure and working principle will not be elaborated here. At the top of the vertical frame 1, a cylinder 3 is installed. The telescopic rod of the cylinder 3 extends downward and is connected to a riveting head 4. The end of the riveting head 4 has magnetism and can absorb the rivet 17 at the nearest position. At the bottom of the vertical frame 1, a positioning seat 5 for placing the upper cover of the electromagnetic switch is fixed; the discharge port of the rivet aligning machine 2 is connected to a conveying plate 6. The conveying plate 6 is inclined, and the lower end of the conveying plate 6 faces the riveting head 4. A conveying channel 7 for the rivet 17 to pass through is arranged in the conveying plate 6. The cross-section of the conveying channel 7 is T-shaped. The outlet of the conveying channel 7 is located directly below the riveting head 4, and the top end at the outlet of the conveying channel 7 is in an open state.

[0021] Working principle: When the connecting piece 16 automatic riveting device of the present application is in use, on the one hand, first open the rivet aligning machine 2, pour a part of the rivets 17 from the feed port 21 of the rivet aligning machine 2. The rivets 17 are arranged in a unified direction in the rivet aligning machine 2 and enter the conveying channel 7 of the conveying plate 6 from the discharge port. Under the action of gravity, the rivets 17 slide along the conveying channel 7 to the outlet of the conveying channel 7. On the other hand, place the upper cover of the electromagnetic switch with the connecting piece 16 placed on the positioning seat 5, start the cylinder 3, and the telescopic rod of the cylinder 3 extends downward. The riveting head 4 can then rivet the rivet 17, the upper cover of the electromagnetic switch and the connecting piece 16 together.

[0022] Further, as one of the embodiments of the present invention, the upper end of the conveying plate 6 is rotatably connected to the discharge port of the rivet aligning machine 2. An inclined pressing plate 8 is fixed to the lower part of the conveying plate 6. A roller 9 is fixed to the lower part of the telescopic rod of the cylinder 3. The wheel surface of the roller 9 is in contact with the inclined pressing plate 8. When the telescopic rod of the cylinder 3 moves downward, the roller 9 presses the inclined pressing plate 8, and then the conveying plate 6 moves away from the riveting head 4, providing more space for the riveting head 4 to perform the riveting operation without interference. During this process, the rotation angle of the upper end of the conveying plate 6 is relatively small.

[0023] Further, as one of the embodiments of the present invention, an extension rod 10 is fixed to the middle of the conveying plate 6. A return spring 11 is fixed between the extension rod 10 and the vertical frame 1. After the riveting is completed and the telescopic rod of the cylinder 3 moves upward, the return spring 11 can help the conveying plate 6 automatically reset.

[0024] Further, as one of the embodiments of the present invention, a top rod 12 is also fixed to the vertical frame 1. The top rod 12 faces the middle of the conveying plate 6. Taking the outlet of the conveying channel 7 being directly below the riveting head 4 as the initial position of the conveying plate 6, when the top end of the top rod 12 contacts the middle of the conveying plate 6, the conveying plate 6 is in the initial position.

[0025] The ejector rod 12 can not only limit the conveying plate 6, but also bring a slight vibration when the top end of the ejector rod 12 collides with the conveying plate 6, so that the next rivet 17 reaches the outlet of the conveying channel 7, which is beneficial to the continuous progress of the riveting work.

[0026] Furthermore, as one embodiment of the present utility model, a rubber head 13 is fixed to the top end of the ejector rod 12 to reduce the impact force and noise.

[0027] Furthermore, as one embodiment of the present utility model, a guide seat 14 is fixed to the middle of the vertical frame 1. A vertically arranged guide hole is provided in the guide seat 14, and the telescopic rod of the cylinder 3 passes through the guide hole. The arrangement of the guide seat 14 and the guide hole can ensure the correct riveting direction.

[0028] Furthermore, as one embodiment of the present utility model, a counter 15 is also installed on one side of the vertical frame 1 for recording the number of riveting times.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0031] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present utility model all fall within the protection scope of the technical solution of the present utility model.

[0032] It should be understood that although this specification is described in accordance with the implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch, characterized in that: It includes an upright frame. A rivet aligning machine is installed on one side of the upright frame. A cylinder is installed on the top of the upright frame. The telescopic rod of the cylinder extends downward and is connected with a riveting head. A positioning seat for placing the upper cover of the electromagnetic switch is fixed at the bottom of the upright frame. The discharge port of the rivet aligning machine is connected with a conveying plate. The conveying plate is inclined, and the lower end of the conveying plate faces the riveting head. A conveying channel for the rivets to pass through is arranged in the conveying plate. The cross-section of the conveying channel is T-shaped, and the outlet of the conveying channel is located directly below the riveting head.

2. The automatic riveting device for the connecting piece of the electromagnetic switch upper cover according to claim 1, wherein: The upper end of the conveying plate is rotatably connected with the discharge port of the rivet aligning machine. An inclined pressing plate is fixed at the lower part of the conveying plate. A roller is fixed at the lower part of the telescopic rod of the cylinder. The wheel surface of the roller is in contact with the inclined pressing plate.

3. The automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch according to claim 2, characterized in that: An extension rod is fixed in the middle of the conveying plate. A return spring is fixed between the extension rod and the upright frame.

4. An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch according to claim 3, characterized in that: A push rod is also fixed on the upright frame. The push rod faces the middle of the conveying plate. When the outlet of the conveying channel is directly below the riveting head, it is the initial position of the conveying plate. When the top end of the push rod contacts the middle of the conveying plate, the conveying plate is in the initial position.

5. An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch according to claim 4, characterized in that: A rubber head is fixed at the top end of the push rod.

6. An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch according to any one of claims 1 to 5, characterized in that: A guide seat is fixed in the middle of the upright frame. A vertically arranged guide hole is opened in the guide seat. The telescopic rod of the cylinder passes through the guide hole.

7. An automatic riveting device for the connecting piece of the upper cover of an electromagnetic switch according to claim 6, characterized in that: A counter is also installed on one side of the upright frame.

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