Electromagnetic switch upper cover tooth pad riveting device

Abstract

The utility model discloses an electromagnetic switch upper cover tooth pad riveting device which comprises a top plate, a bottom plate and a pneumatic cylinder, and the top plate and the bottom plate are fixedly connected through a supporting column. A pressing plate is arranged between the top plate and the bottom plate, the pressing plate is fixedly connected with a telescopic rod of the pneumatic cylinder, a riveting assembly is mounted below the pressing plate and comprises a mounting base, two connecting columns and two riveting heads, the mounting base is hollow, the connecting columns extend into the mounting base, and the riveting heads are fixedly connected with the connecting columns. A gap is formed between the top end of the connecting column and the top wall in the mounting seat, a limiting ring is arranged at the top of the connecting column, a first spring sleeves the connecting column, and two ends of the first spring are fixedly connected with the limiting ring and the bottom of the mounting seat respectively; the bottom of the connecting column is detachably and fixedly connected with the riveting head, the riveting head is of a cylindrical structure, and the diameter of the riveting head is matched with the diameter of a tooth pad of the upper cover of the electromagnetic switch. According to the utility model, the gaskets on the two main binding posts of the upper cover of the electromagnetic switch can be rapidly installed at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic switch assembly, in particular to a riveting device for a tooth gasket 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 moving iron core pushes or pulls the switch contact to close, thereby turning on the control circuit.

[0003] An electromagnetic switch mainly includes an upper cover, a main body housing, a coil, a moving iron core, and a terminal. The terminal is installed on the upper cover, and the coil and the moving iron core are located inside the main body housing. During the assembly process of the upper cover, after the terminal is installed on the upper cover, a gasket and a nut need to be installed on the terminal in sequence. Currently, the common method for fixing the gasket is to use manual tools. On the one hand, there are two main terminals on the upper cover, and both need to install and fix gaskets. Using manual tools can only install the gasket on one main terminal at a time, resulting in low efficiency. On the other hand, manually using manual tools to install the gasket is relatively labor-intensive, and the installation quality cannot be guaranteed after long-term work, which may reduce the yield rate. Therefore, it is necessary to design a riveting device that can quickly install the gaskets on two main terminals at the same time. Content of the Utility Model

[0004] The purpose of the utility model is to provide a riveting device for a tooth gasket of an electromagnetic switch upper cover, so as to quickly install the gaskets on two main terminals at the same time.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A riveting device for a tooth gasket of an electromagnetic switch upper cover includes a top plate, a bottom plate, and a pneumatic cylinder. The top plate and the bottom plate are fixedly connected by support columns. The pneumatic cylinder is fixed on the top plate, and the telescopic rod of the pneumatic cylinder extends downward out of the top plate;

[0007] A pressure plate is arranged between the top plate and the bottom plate. The pressure plate is fixedly connected with the telescopic rod of the pneumatic cylinder. A riveting assembly is installed below the pressure plate. The riveting assembly includes a mounting seat, a connecting column, and a riveting head. The mounting seat is fixed at the bottom of the pressure plate. There are two connecting columns and two riveting heads. The interior of the mounting seat is hollow, and a mounting hole is opened at the bottom of the mounting seat. The connecting column passes through the mounting hole and extends into the interior of the mounting seat. There is a gap between the top end of the connecting column and the inner top wall of the mounting seat. A limiting ring is arranged at the top of the connecting column. A first spring is sleeved outside the connecting column. The two ends of the first spring are respectively fixedly connected with the limiting ring and the bottom of the mounting seat; the bottom of the connecting column is detachably fixedly connected with the riveting head. The riveting head is a cylindrical structure, and the diameter of the riveting head matches the diameter of the tooth gasket of the electromagnetic switch upper cover;

[0008] A positioning seat for placing the upper cover of the electromagnetic switch is also installed on the bottom plate.

[0009] Optionally, it further includes a balance plate. The middle part of the balance plate is hinged inside the mounting seat, and both ends of the balance plate can swing inside the mounting seat. The two connecting columns are respectively located below both sides of the hinge position of the balance plate, and the top ends of the connecting columns are in pressing contact with the bottom of the balance plate.

[0010] Optionally, the top end of the connecting column is a curved surface.

[0011] Optionally, a guiding column is also vertically arranged on the bottom plate, and the pressing plate is slidably connected to the guiding column.

[0012] Optionally, a second spring is sleeved outside the guiding column.

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

[0014] The utility model can rivet the gaskets at the two wiring terminals of the upper cover simultaneously, saving time and effort. During the riveting process, it can also have good buffering to avoid damaging the product. In addition, through the design of the balance plate, the utility model can also automatically adapt according to the height of the position where the gasket is located, making the two gaskets evenly stressed and further avoiding damaging the upper cover of the electromagnetic switch. Description of the Drawings

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

[0016] Figure 2 is Figure 1 the schematic structural diagram of the riveting assembly in

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

[0018] Reference Signs: 1. Top plate, 2. Bottom plate, 3. Pneumatic cylinder, 4. Support column, 5. Pressing plate, 6. Mounting seat, 7. Connecting column, 8. Riveting head, 9. Limiting ring, 10. First spring, 11. Positioning seat, 12. Balance plate, 13. Guiding column, 14. Second spring, 15. Gasket, 16. Main wiring terminal. Detailed Embodiment

[0019] In order to make the technical purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model will be further described below with reference to the attached Figures 1-3 drawings and specific embodiments. Embodiment

[0020] An electromagnetic switch upper cover tooth pad riveting device, comprising a top plate 1, a bottom plate 2 and a pneumatic cylinder 3. The top plate 1 and the bottom plate 2 are fixedly connected through a support column 4. The pneumatic cylinder 3 is fixed on the top plate 1, and the telescopic rod of the pneumatic cylinder 3 extends downward out of the top plate 1;

[0021] A pressing plate 5 is arranged between the top plate 1 and the bottom plate 2. The pressing plate 5 is fixedly connected with the telescopic rod of the pneumatic cylinder 3. A riveting assembly is installed below the pressing plate 5. The riveting assembly includes a mounting seat 6, a connecting column 7 and a riveting head 8. The mounting seat 6 is fixed at the bottom of the pressing plate 5. There are two connecting columns 7 and two riveting heads 8, which respectively correspond to two main wiring terminals 16. The interior of the mounting seat 6 is hollow, and an installation hole is opened at the bottom of the mounting seat 6. The connecting column 7 passes through the installation hole and extends into the interior of the mounting seat 6. There is a gap between the top end of the connecting column 7 and the inner top wall of the mounting seat 6. A limiting ring 9 is arranged at the top of the connecting column 7. A first spring 10 is sleeved outside the connecting column 7. The two ends of the first spring 10 are respectively fixedly connected with the limiting ring 9 and the bottom of the mounting seat 6. The bottom of the connecting column 7 is detachably fixedly connected with the riveting head 8, for example, through a set screw connection. The riveting head 8 is of a cylindrical structure, and the diameter of the riveting head 8 matches the diameter of the tooth pad of the electromagnetic switch upper cover. The cylindrical structure can avoid interference with the main wiring terminals 16 of the electromagnetic switch;

[0022] A positioning seat 11 for placing the electromagnetic switch upper cover is also installed on the bottom plate 2.

[0023] Working principle: When it is necessary to rivet the tooth pad of the electromagnetic switch upper cover, first place the electromagnetic switch upper cover on the positioning seat 11 of the workbench, start the electromagnetic switch upper cover tooth pad riveting device, and the telescopic rod of the pneumatic cylinder 3 drives the pressing plate 5 to press down. During the pressing down process, the bottom end of the riveting head 8 first contacts the tooth pad. At this time, the electromagnetic switch upper cover is not yet subjected to a large-intensity impact. Then, the pressing plate 5 continues to press down, and the gap between the top end of the connecting column 7 and the inner top wall of the mounting seat 6 gradually shrinks until it disappears, and the first spring 10 is in a compressed state. During this process, the riveting of the tooth pad is completed. The first spring 10 provides a certain buffer for the riveting process of the tooth pad during this process, avoiding the electromagnetic switch upper cover from being violently impacted and protecting the product quality.

[0024] Further, as one of the embodiments of the present invention, it further includes a balance plate 12. The middle part of the balance plate 12 is hinged inside the mounting seat 6. The two ends of the balance plate 12 can swing inside the mounting seat 6. The two connecting columns 7 are respectively located below the two sides of the hinge of the balance plate 12, and the top ends of the connecting columns 7 are in pressing contact with the bottom of the balance plate 12. During the pressing down process of the pressing plate 5, due to the different heights of the gaskets 15 on the two main wiring terminals 16, their height positions will successively cause the balance plate 12 to swing to an appropriate position through the riveting head 8 and the connecting column 7, so that the two gaskets 15 are evenly stressed.

[0025] Further, as one embodiment of the present utility model, the top end of the connecting column 7 is a curved surface, which is conducive to the automatic adjustment of the position of the balance plate 12.

[0026] Further, as one embodiment of the present utility model, a guiding column 13 is vertically arranged on the bottom plate 2, and the pressing plate 5 is slidably connected to the guiding column 13. The guiding column 13 can provide guidance for the downward pressing process and the return stroke of the pressing plate 5.

[0027] Further, as one embodiment of the present utility model, a second spring 14 is sleeved outside the guiding column 13.

[0028] 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 to 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 specifying 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 "a plurality" is two or more.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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.

[0030] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

[0031] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative way 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 embodiments that can be understood by those skilled in the art.

Claims

1. An electromagnetic switch upper cover tooth pad riveting device, characterized in that: It includes a top plate, a bottom plate and a pneumatic cylinder. The top plate and the bottom plate are fixedly connected by support columns. The pneumatic cylinder is fixed on the top plate, and the telescopic rod of the pneumatic cylinder extends downward out of the top plate; A pressing plate is arranged between the top plate and the bottom plate. The pressing plate is fixedly connected to the telescopic rod of the pneumatic cylinder. A riveting assembly is installed below the pressing plate. The riveting assembly includes a mounting seat, a connecting column and a riveting head. The mounting seat is fixed to the bottom of the pressing plate. There are two connecting columns and two riveting heads. The interior of the mounting seat is hollow, and a mounting hole is opened at the bottom of the mounting seat. The connecting column passes through the mounting hole and extends into the interior of the mounting seat. There is a gap between the top end of the connecting column and the inner top wall of the mounting seat. A limiting ring is arranged at the top of the connecting column. A first spring is sleeved outside the connecting column. The two ends of the first spring are respectively fixedly connected to the limiting ring and the bottom of the mounting seat; The bottom of the connecting column is detachably fixedly connected to the riveting head. The riveting head is of a cylindrical structure, and the diameter of the riveting head matches the diameter of the tooth pad on the upper cover of the electromagnetic switch; A positioning seat for placing the upper cover of the electromagnetic switch is also installed on the bottom plate.

2. The riveting device for the tooth pad of the upper cover of an electromagnetic switch according to claim 1, characterized in that: It also includes a balance plate. The middle of the balance plate is hinged in the mounting seat. The two ends of the balance plate can swing in the mounting seat. The two connecting columns are respectively located below the two sides of the hinge of the balance plate. The top end of the connecting column is in pressing contact with the bottom of the balance plate.

3. The riveting device for the tooth pad of the upper cover of an electromagnetic switch according to claim 2, characterized in that: The top end of the connecting column is a curved surface.

4. An electromagnetic switch upper cover tooth pad riveting device according to any one of claims 1 to 3, characterized in that: Guide columns are also vertically arranged on the bottom plate. The pressing plate is slidably connected to the guide columns.

5. An electromagnetic switch upper cover tooth pad riveting device according to claim 4, characterized in that: A second spring is sleeved outside the guide columns.

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