Assembly device for electromagnetic trip units

Abstract

The utility model belongs to low -voltage electric appliance production technical field, specifically discloses an assembly device of electromagnetic release. The utility model provides an assembly device of electromagnetic release, provides the air of first air pressure value and the air of second air pressure value to pneumatic drive spare through control air pressure control subassembly, judges whether the assembly of iron core subassembly, support board and magnetic yoke is qualified according to whether triggering position detection spare when providing the air of first air pressure value and the air of second air pressure value, replaces the artificial judgment assembly whether qualified, has improved the consistency of support board, magnetic yoke and iron core subassembly assembly, and further improved the qualified rate.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliance manufacturing technology, and in particular to an assembly device for an electromagnetic trip unit. Background Technology

[0002] Electromagnetic trip units are crucial components of circuit breakers, typically comprising a core assembly, magnetic yoke, and support plate. Currently, the assembly of electromagnetic trip units in circuit breakers is usually done manually. Due to the small size of the components and the complexity of the assembly process, manual assembly is time-consuming and inefficient, lacking in strength and precision. Furthermore, after assembly, the products require manual evaluation for quality, but the lack of standardized criteria leads to inconsistent product quality and hinders standardized, high-performing, and efficient production. Utility Model Content

[0003] The purpose of this utility model is to provide an assembly device for an electromagnetic trip unit, which can determine whether the assembly of the support plate, magnetic yoke and iron core assembly is qualified during assembly, replacing the manual judgment of whether the assembly is qualified, improving the consistency of the assembly of the support plate, magnetic yoke and iron core assembly, and thus improving the pass rate.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An assembly device for an electromagnetic trip unit, wherein the electromagnetic trip unit includes a support plate, a magnetic yoke, and an iron core assembly, and the assembly device includes:

[0006] The positioning mechanism has an assembly position and a loading position, wherein the assembly position is used to place the assembled support plate and the magnetic yoke, and the loading position is used to place the iron core assembly;

[0007] A clamping mechanism is disposed on one side of the positioning mechanism, and the clamping mechanism is used to position the support plate and the magnetic yoke at the assembly position;

[0008] The pressing mechanism includes a pneumatic drive, a pressing assembly, a position detection component, and a pneumatic control assembly. The pneumatic control assembly is used to sequentially provide air of a first air pressure value and air of a second air pressure value to the pneumatic drive, causing the pneumatic drive to drive the pressing assembly to move toward the loading position, and causing the iron core assembly placed at the loading position to move to the assembly position and connect with the support plate and the magnetic yoke. When the pneumatic drive is provided with air of the second air pressure value and the position detection component is triggered by the pressing assembly, it is determined that the iron core assembly is successfully assembled with the support plate and the magnetic yoke.

[0009] Wherein, the first air pressure value is less than the second air pressure value.

[0010] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip unit, the pushing assembly includes a mounting base, a pushing rod, and a trigger. The pneumatic drive is connected to the mounting base. The first end of the pushing rod and the trigger are respectively connected to the mounting base. The trigger is used to trigger the position detection element. The second end of the pushing rod is provided with a pressing block. The pressing block abuts against the surface of the iron core assembly away from the assembly position. The end face of the second end of the pushing rod is adapted to the shape of the side surface of the iron core assembly.

[0011] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip unit, the pneumatic control component includes an air compressor, a first pressure regulating valve, a first pneumatic solenoid valve, a second pressure regulating valve, and a second pneumatic solenoid valve. The air supply end of the air compressor is connected to the pneumatic drive component through a first air pipe. The first air pipe is equipped with the first pressure regulating valve and the first pneumatic solenoid valve. A second air pipe is connected between the air inlet end of the first pressure regulating valve and the air outlet end of the first pneumatic solenoid valve. The second air pipe is equipped with the second pressure regulating valve and the second pneumatic solenoid valve. When one of the first pneumatic solenoid valve and the second pneumatic solenoid valve is open, the other is closed.

[0012] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, the positioning mechanism includes a positioning seat with a positioning groove. The first end of the positioning groove passes through the side of the positioning seat, the first end of the positioning groove is provided with the loading position, the second end of the positioning groove is provided with the assembly position, and the side wall of the second end of the positioning groove and the two side walls adjacent to the second end of the positioning groove are used to limit the support plate and the magnetic yoke.

[0013] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, the support plate includes a first plate, a second plate, and a third plate connected in sequence. The widths of the first plate, the second plate, and the third plate decrease sequentially. The second plate has an upwardly bent first plate on each of its opposite sides. The third plate has a downwardly bent second plate at one end away from the second plate. The first plate has two fourth plates spaced apart at one end away from the second plate.

[0014] The magnetic yoke has a U-shaped structure, and the first side plate of the magnetic yoke is in contact with the third plate, the second plate and the first plate, and the first side plate is placed between the two fourth plates;

[0015] The core assembly has a first insertion slot at one end facing the assembly position. The first side plate is inserted into the first insertion slot. The ends of the two side walls of the first insertion slot are respectively connected to U-shaped plates. The openings of the two U-shaped plates are arranged facing each other. The fourth plate is inserted into the corresponding U-shaped plate.

[0016] The positioning groove includes a first groove and a second groove that are connected. The end of the first groove away from the second groove passes through the side of the positioning seat. The second plate and the third plate are placed in the second groove. The width of the second groove is adapted to the width of the second plate. The first bent plate abuts against the groove wall of the second groove. The bottom of the second groove is recessed with the third groove. The second bent plate is inserted into the third groove. The third plate and the bottom plate of the magnetic yoke abut against the side wall of the second groove away from the first groove. The opposite side walls of the second groove limit the first side plate of the magnetic yoke.

[0017] The first groove is used to accommodate the first plate and the fourth plate. The bottom of the first groove is provided with a fourth groove corresponding to the fourth plate, and one end of the fourth groove extends to the second groove. The other end of the fourth groove passes through the side of the positioning seat. The fourth groove is used to accommodate the U-shaped plate of the iron core assembly.

[0018] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, the positioning seat includes a first seat and a second seat, the first seat and the second seat are detachably connected, the first seat is provided with a first groove, the two ends of the first groove respectively penetrate the side wall of the first seat, the second seat is provided with a second groove, the two ends of the second groove respectively penetrate the side wall of the second seat, a sealing member is provided at the end of the second groove away from the first groove, the sealing member is detachably connected to the second seat, the sealing member seals the end opening of the second groove, so that the third plate and the bottom plate of the magnetic yoke both abut against the sealing member.

[0019] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip unit, the magnetic yoke is placed above the support plate;

[0020] The clamping mechanism includes a clamping drive, a clamping seat, and a clamping rod assembly. The clamping rod assembly is connected to the clamping seat. The clamping drive is used to drive the clamping seat to move, so that the clamping rod assembly presses against the magnetic yoke, thereby positioning the magnetic yoke and the support plate at the assembly position.

[0021] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, the clamping rod assembly includes a clamping rod and a clamping rod driver. The middle part of the clamping rod is rotatably connected to the clamping seat, one end of the clamping rod is connected to the clamping rod driver, and the clamping rod driver is connected to the clamping seat. The clamping rod driver is used to drive the clamping rod to rotate relative to the clamping seat, so that the other end of the clamping rod presses against the magnetic yoke.

[0022] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, the clamping rod assembly further includes a spring plunger, which is disposed on the clamping seat. The spring plunger and the clamping rod driver are disposed on opposite sides of the clamping rod, and the force applied by the spring plunger to the clamping rod is opposite to the force applied by the clamping rod driver to the clamping rod.

[0023] As an optional technical solution for the assembly device of the aforementioned electromagnetic trip device, one end of the clamping rod is connected to an adjusting screw, one end of the adjusting screw passes through the clamping rod and abuts against the clamping seat, the adjusting screw is screwed to the clamping rod, and adjusting the adjusting screw is used to change the distance between the other end of the clamping rod and the magnetic yoke.

[0024] The beneficial effects of this utility model are:

[0025] The assembly device for the electromagnetic trip unit provided by this utility model includes a positioning mechanism for placing a support plate and a magnetic yoke at the assembly position, and a loading position for placing an iron core assembly. A clamping mechanism positions the support plate and magnetic yoke at the assembly position, preventing displacement of the support plate and magnetic yoke during connection of the iron core assembly to the support plate and magnetic yoke, thus avoiding impact on assembly quality. A pneumatic control component sequentially provides air of a first pressure value and air of a second pressure value to the pneumatic drive component. When the pneumatic control component provides air of the first pressure value to the pneumatic drive component, the pneumatic drive component drives the pushing component to move towards the loading position and push the iron core assembly placed there. If the pushing component triggers the position detection component, even though the iron core assembly is properly assembled with the support plate and magnetic yoke, if the fit between the iron core assembly and the support plate and magnetic yoke is too loose, it can be determined that the iron core assembly is not properly aligned with the support plate and magnetic yoke. If the assembly is not up to standard, and the pushing component does not trigger the position detection component after supplying the first air pressure value to the pneumatic drive component, then the second air pressure value is supplied to the pneumatic drive component, causing the pneumatic drive component to drive the pushing component to continue moving the iron core assembly. If the pushing component triggers the position detection component, it can be determined that the assembly of the iron core assembly with the support plate and the magnetic yoke is qualified; if the pushing component does not trigger the position detection component, it indicates that the fit between the iron core assembly and the support plate and the magnetic yoke is too tight, and it can be determined that the assembly of the iron core assembly with the support plate and the magnetic yoke is unqualified. The assembly device provided by this utility model can determine whether the assembly of the support plate, magnetic yoke and iron core assembly is qualified when assembling the support plate, magnetic yoke and iron core assembly, replacing the manual judgment of whether the assembly is qualified, improving the consistency of the assembly of the support plate, magnetic yoke and iron core assembly, and thus improving the pass rate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the assembly structure of the support plate, magnetic yoke, and iron core assembly provided in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the support plate provided in an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the magnetic yoke provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the core assembly provided in this embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the overall structure of the assembly device for the electromagnetic trip unit provided in this embodiment of the utility model;

[0031] Figure 6 This is a first axonometric view of the positioning mechanism provided in this embodiment of the utility model;

[0032] Figure 7 This is a second axonometric view of the positioning mechanism provided in this embodiment of the utility model;

[0033] Figure 8 This is a top view of the positioning mechanism provided in this embodiment of the utility model;

[0034] Figure 9 This is a third axonometric view of the positioning mechanism provided in this embodiment of the utility model;

[0035] Figure 10 This is a fourth axonometric view of the positioning mechanism provided in this embodiment of the utility model;

[0036] Figure 11 This is an exploded structural diagram of the positioning mechanism provided in an embodiment of the present utility model;

[0037] Figure 12 This is a schematic diagram of the pressing mechanism and positioning mechanism provided in this embodiment of the utility model;

[0038] Figure 13 This is a first isometric view of the positioning mechanism, clamping mechanism, and pressing mechanism provided in this embodiment of the utility model;

[0039] Figure 14 This is a first isometric view of the clamping mechanism provided in this embodiment of the present invention;

[0040] Figure 15 This is a second isometric view of the clamping mechanism provided in this embodiment of the present invention;

[0041] Figure 16 This is a second isometric view of the positioning mechanism, clamping mechanism, and pressing mechanism provided in this embodiment of the utility model;

[0042] Figure 17 This is a schematic diagram of the pressing mechanism provided in this embodiment of the utility model;

[0043] Figure 18This is a flowchart of the assembly method of the electromagnetic trip device provided in this embodiment of the utility model.

[0044] In the picture:

[0045] 100. Support plate; 101. First plate; 102. Second plate; 103. Third plate; 104. First curved plate; 105. Second curved plate; 106. Fourth plate; 107. Hole;

[0046] 200. Magnetic yoke; 201. First side plate; 202. Base plate; 203. Boss; 204. Second side plate;

[0047] 300. Iron core assembly; 301. First insertion slot; 302. U-shaped plate; 303. Iron core; 304. Bracket; 305. Protrusion;

[0048] 1. Positioning mechanism; 2. Clamping mechanism; 3. Pressing mechanism; 4. Base;

[0049] 11. Positioning seat; 111. First seat body; 112. Second seat body; 1121. First seat body block; 1122. Second seat body block; 113. Sealing component; 12. Positioning groove; 121. First groove body; 122. Second groove body; 123. Third groove body; 124. Fourth groove body; 125. Clearance groove; 13. Limiting block; 14. Connecting plate;

[0050] 21. Clamping drive component; 22. Clamping seat; 221. Clamping seat body; 222. Positioning component; 23. Clamping rod assembly; 231. Clamping rod; 232. Clamping rod driver; 233. Spring plunger; 234. Adjusting screw; 24. Clamping limit screw;

[0051] 31. Pneumatic drive component; 32. Pushing assembly; 321. Mounting base; 322. Pushing rod; 323. Trigger; 324. Pressing block; 33. Position detection component; 34. Pneumatic control assembly; 341. First pressure regulating valve; 342. First pneumatic solenoid valve; 343. Second pressure regulating valve; 344. Second pneumatic solenoid valve; 35. Assembly limit screw. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0056] Example 1

[0057] like Figures 1 to 4 As shown, this embodiment provides an assembly device for an electromagnetic trip unit, used to assemble the support plate 100, magnetic yoke 200 and iron core assembly 300 of the electromagnetic trip unit.

[0058] like Figure 2 As shown, the support plate 100 includes a first plate 101, a second plate 102, and a third plate 103 connected in sequence. The widths of the first plate 101, the second plate 102, and the third plate 103 decrease in sequence. The second plate 102 has an upwardly bent first plate 104 on each of its opposite sides. The third plate 103 has a downwardly bent second plate 105 at one end away from the second plate 102. The first plate 101 has two fourth plates 106 spaced apart at one end away from the second plate 102.

[0059] like Figure 3As shown, the magnetic yoke 200 has a U-shaped structure. The first side plate 201 of the magnetic yoke 200 contacts the third plate 103, the second plate 102, and the first plate 101, and the first side plate 201 is positioned between the two fourth plates 106. The first side plate 201 of the magnetic yoke 200 has a boss 203 on the side facing the first plate 101. The first plate 101 has a hole 107, and the boss 203 is inserted into the hole 107, thus realizing the connection between the magnetic yoke 200 and the support plate 100.

[0060] like Figure 4 As shown, one end of the core assembly 300 is provided with a first insertion slot 301. The first side plate 201 of the magnetic yoke 200 is disposed in the first insertion slot 301. The second side plate 204 on the magnetic yoke 200, opposite to the first side plate 201, is positioned above the other end of the core assembly 300. The bottom plate 202 of the magnetic yoke 200 is positioned on one side of the core assembly 300. The ends of the two side walls of the first insertion slot 301 are respectively connected to U-shaped plates 302, with the openings of the two U-shaped plates 302 facing each other. A fourth plate 106 is inserted into the corresponding U-shaped plate 302. The core assembly 300 includes a core 303 and a support 304. One end of the core 303 is inserted into the support 304. One end of the support 304 is provided with the first insertion slot 301 and the U-shaped plate 302. The other end of the core 303 abuts against the bottom plate 202 of the magnetic yoke 200.

[0061] The assembly device provided in this embodiment assembles the iron core assembly 300 with the magnetic yoke 200 and the support plate 100 together. Specifically, the fourth plate 106 of the support plate 100 is inserted into the U-shaped plate 302 of the iron core assembly 300, the first side plate 201 of the magnetic yoke 200 is inserted into the first insertion slot 301 of the iron core assembly 300, and the iron core 303 of the iron core assembly 300 abuts against the bottom plate 202 of the magnetic yoke 200.

[0062] To achieve the assembly of the iron core assembly 300 onto the support plate 100 and the magnetic yoke 200, such as Figure 5As shown, the provided assembly device includes a positioning mechanism 1, a clamping mechanism 2, and a pressing mechanism 3. The positioning mechanism 1 has an assembly position and a loading position. The assembly position is used to place the assembled support plate 100 and magnetic yoke 200, and the loading position is used to place the iron core assembly 300. The clamping mechanism 2 is disposed on one side of the positioning mechanism 1, and the clamping mechanism 2 is used to position the support plate 100 and magnetic yoke 200 in the assembly position. The pressing mechanism 3 includes a pneumatic drive 31, a pressing assembly 32, a position detection component 33, and a pneumatic control component 34. The pneumatic control component 34 is used to sequentially provide air of a first air pressure value and air of a second air pressure value to the pneumatic drive 31, so that the pneumatic drive 31 drives the pressing assembly 32 to move toward the loading position, and moves the iron core assembly 300 placed at the loading position to the assembly position and connects it with the support plate 100 and the magnetic yoke 200. When the pneumatic drive 31 is provided with air of the second air pressure value and the position detection component 33 is triggered by the pressing assembly 32, it is determined that the iron core assembly 300 is qualified to be assembled with the support plate 100 and the magnetic yoke 200; wherein, the first air pressure value is less than the second air pressure value.

[0063] The positioning mechanism 1 places the support plate 100 and the magnetic yoke 200 at the assembly position, and the loading position places the iron core assembly 300. The clamping mechanism 2 positions the support plate 100 and the magnetic yoke 200 at the assembly position to prevent displacement of the support plate 100 and the magnetic yoke 200 when connecting the iron core assembly 300 to the support plate 100 and the magnetic yoke 200, which would affect the assembly quality. The pneumatic control component 34 is used to sequentially provide air of a first air pressure value and air of a second air pressure value to the pneumatic drive component 31. When the pneumatic drive unit 31 provides air at the first air pressure value, the pneumatic drive unit 31 drives the pushing assembly 32 to move towards the loading position and push the iron core assembly 300 placed at the loading position. If the pushing assembly 32 triggers the position detection unit 33, although the iron core assembly 300 is assembled with the support plate 100 and the magnetic yoke 200, the fit between the iron core assembly 300 and the support plate 100 and the magnetic yoke 200 is too loose, it can be determined that the assembly of the iron core assembly 300 with the support plate 100 and the magnetic yoke 200 is unqualified; if it is in the direction of... After the pneumatic drive unit 31 provides air at the first air pressure value, if the pushing assembly 32 does not trigger the position detection unit 33, then air at the second air pressure value is provided to the pneumatic drive unit 31, causing the pneumatic drive unit 31 to drive the pushing assembly 32 to continue moving the iron core assembly 300. If the pushing assembly 32 triggers the position detection unit 33, it can be determined that the assembly of the iron core assembly 300 with the support plate 100 and the magnetic yoke 200 is qualified; if the pushing assembly 32 does not trigger the position detection unit 33, it indicates that the iron core assembly 300 and the support plate 100 are not properly assembled. If the fit between the support plate 100 and the magnetic yoke 200 is too tight, it can be determined that the assembly of the core assembly 300 with the support plate 100 and the magnetic yoke 200 is unqualified. The assembly device provided in this embodiment can determine whether the assembly of the support plate 100, the magnetic yoke 200 and the core assembly 300 is qualified when assembling the support plate 100, the magnetic yoke 200 and the core assembly 300. This replaces the manual judgment of whether the assembly is qualified, improves the consistency of the assembly of the support plate 100, the magnetic yoke 200 and the core assembly 300, and thus improves the pass rate.

[0064] The assembly device for the electromagnetic trip unit also includes a base 4, on which the positioning mechanism 1, the clamping mechanism 2, and the pressing mechanism 3 are all mounted. An electrical control box is also mounted on the base 4. Inside the control box are electrical components such as a controller, a switching power supply, and a residual current circuit breaker. The control box panel is equipped with an emergency stop button and a start button. The electrical connection structure of the controller, switching power supply, residual current circuit breaker, emergency stop button, and start button is existing technology and will not be described in detail here. The controller controls the operation of the clamping mechanism 2 and the pressing mechanism 3. The electrical connection structure between the controller and the clamping mechanism 2 and the pressing mechanism 3 is existing technology and will not be described in detail here.

[0065] In some embodiments, such as Figure 6As shown, the positioning mechanism 1 includes a positioning seat 11, on which a positioning groove 12 is provided. The first end of the positioning groove 12 penetrates the side of the positioning seat 11, and a loading position is provided at the first end of the positioning groove 12 to facilitate the loading of the iron core assembly 300 to the loading position. An assembly position is provided at the second end of the positioning groove 12, and the side wall of the second end of the positioning groove 12 and the two side walls adjacent to the second end of the positioning groove 12 are used to limit the support plate 100 and the magnetic yoke 200, so as to prevent the support plate 100 and the magnetic yoke 200 from being displaced.

[0066] like Figure 7 , Figure 8 and Figure 9 As shown, based on the structures of the support plate 100, the magnetic yoke 200, and the core assembly 300, a positioning groove 12 is provided to better position the support plate 100, the magnetic yoke 200, and the core assembly 300, allowing the core assembly 300 to be precisely assembled onto the support plate 100 and the magnetic yoke 200. The specific structure of the support plate 100 can be found in [reference needed]. Figure 2 For the specific structure of the magnetic yoke 200, please refer to [link / reference]. Figure 3 For the specific structure of the iron core assembly 300, please refer to [link / reference]. Figure 4 Optionally, the positioning groove 12 includes a first groove 121 and a second groove 122 that are connected. One end of the first groove 121, away from the second groove 122, passes through the side of the positioning seat 11. The second plate 102 and the third plate 103 are placed inside the second groove 122. The width of the second groove 122 is adapted to the width of the second plate 102, and the first bent plate 104 abuts against the groove wall of the second groove 122. The second groove 122 upper limit the second plate 102 in the width direction. The bottom of the second groove 122 is recessed with a third groove 123. The second bent plate 105 is inserted into the third groove 123, and the third groove 123 positions the second bent plate 105. The bottom plate 202 of the third plate 103 and the magnetic yoke 200 both abut against the side wall of the second groove 122 away from the first groove 121, limiting the position of the magnetic yoke 200 and the support plate 100 in the assembly position, thereby improving the assembly accuracy of the core assembly 300 with the magnetic yoke 200 and the support plate 100. The opposing side walls of the second groove 122 limit the first side plate 201 of the magnetic yoke 200, preventing the magnetic yoke 200 from shifting in the width direction of the second plate 102. The first groove 121 is used to accommodate the first plate 101 and the fourth plate 106. The bottom of the first groove 121 is provided with a fourth groove 124 corresponding to the fourth plate 106. One end of the fourth groove 124 extends to the second groove 122, and the other end of the fourth groove 124 passes through the side of the positioning seat 11. The fourth groove 124 is used to accommodate the U-shaped plate 302 of the iron core assembly 300. The iron core assembly 300 can slide along the fourth groove 124. The fourth groove 124 plays the role of positioning the iron core assembly 300 and does not affect the insertion of the fourth plate 106 into the U-shaped plate 302. The first side plate 201 of the magnetic yoke 200 is inserted into the first insertion groove 301.

[0067] Optionally, such as Figure 10 As shown, the iron core assembly 300 has multiple protrusions 305 on its opposite sides. The positioning seat 11 has limit blocks 13 on both sides of the positioning groove 12. The limit blocks 13 are set in accordance with the assembly position. During the process of the iron core assembly 300 gradually connecting with the support plate 100 and the magnetic yoke 200, the protrusions 305 contact the limit blocks 13 on the corresponding side. The limit blocks 13 play a role in correcting the position of the iron core assembly 300, ensuring that the iron core assembly 300 can be accurately connected with the support plate 100 and the magnetic yoke 200.

[0068] like Figure 11 As shown, the positioning seat 11 includes a first seat body 111 and a second seat body 112, which are detachably connected. The first seat body 111 is provided with a first groove 121, and the two ends of the first groove 121 pass through the side wall of the first seat body 111 respectively. The second seat body 112 is provided with a second groove 122, and the two ends of the second groove 122 pass through the side wall of the second seat body 112 respectively. A sealing member 113 is provided at the end of the second groove 122 away from the first groove 121. The sealing member 113 is detachably connected to the second seat body 112 and blocks the end opening of the second groove 122, so that the third plate 103 and the bottom plate 202 of the magnetic yoke 200 both abut against the sealing member 113. The positioning seat 11 is configured as a split structure, and the first groove 121 and the second groove 122 can be processed separately. Then, the first seat 111, the second seat 112 and the sealing member 113 are connected together to form the positioning groove 12.

[0069] A limiting block 13 is disposed on the first seat 111. The second seat 112 includes a first seat block 1121 and a second seat block 1122. The first seat block 1121 is detachably connected to the first seat 111 via a connecting plate 14. The second seat block 1122 is disposed on the top surface of the first seat block 1121, and the second groove 122 is disposed on the second seat block 1122. A sealing member 113 is disposed on the top surface of the first seat block 1121 and blocks the end opening of the second groove 122. The sealing member 113 is detachably connected to the first seat block 1121.

[0070] Optionally, the third groove 123 extends to the first groove 121 and penetrates the side wall of the positioning seat 11, which can move the support plate 100 from the loading position to the assembly position. The third groove 123 plays a role in limiting and guiding the support plate 100 during installation.

[0071] Combination Figures 1 to 3 and Figure 11As shown, the first side plate 201 of the magnetic yoke 200 has a boss 203 on the side facing the first plate 101. The boss 203 is inserted into the hole 107 of the first plate 101. The bottom of the first groove 121 has a relief groove 125. The part of the boss 203 that protrudes from the hole 107 of the first plate 101 is placed in the relief groove 125.

[0072] See Figure 1 and Figure 6 As shown, the assembled magnetic yoke 200 and support plate 100 are positioned with the magnetic yoke 200 above the support plate 100. The support plate 100 contacts the bottom of the positioning groove 12, and the first side plate 201 of the magnetic yoke 200 contacts the support plate 100. In some embodiments, such as... Figure 12 and Figure 13 As shown, the clamping mechanism 2 includes a clamping drive 21, a clamping seat 22, and a clamping rod assembly 23. The clamping rod assembly 23 is connected to the clamping seat 22. The clamping drive 21 drives the clamping seat 22 to move, causing the clamping rod assembly 23 to abut against the magnetic yoke, thus positioning the magnetic yoke 200 and the support plate 100 in the assembly position. After the core assembly 300 is assembled, the core 303 of the core assembly 300 abuts against the bottom plate 202 of the magnetic yoke 200. The core 303 of the core assembly 300 and the first side plate 201 of the magnetic yoke 200 are spaced apart. The clamping rod assembly 23 is inserted into the gap between the core 303 of the core assembly 300 and the first side plate 201 of the magnetic yoke 200 and clamps the magnetic yoke 200 from top to bottom, thereby positioning the magnetic yoke 200 and the support plate 100 in the assembly position without affecting the assembly of the core assembly 300.

[0073] Optionally, such as Figure 14 and Figure 15 As shown, the clamping rod assembly 23 includes a clamping rod 231 and a clamping rod driver 232. The middle part of the clamping rod 231 is rotatably connected to the clamping seat 22. One end of the clamping rod 231 is connected to the clamping rod driver 232. The clamping rod driver 232 is connected to the clamping seat 22. The clamping rod driver 232 is used to drive the clamping rod 231 to rotate relative to the clamping seat 22, so that the other end of the clamping rod 231 presses against the magnetic yoke 200. The structure is simple, and the movement amplitude is small during the process of the clamping rod 231 pressing against the magnetic yoke 200 or releasing the magnetic yoke 200. It does not occupy space and will not interfere with other structures.

[0074] Optionally, the clamping rod assembly 23 further includes a spring plunger 233, which is disposed on the clamping seat 22. The spring plunger 233 and the clamping rod actuator 232 are disposed on opposite sides of the clamping rod 231. The force applied to the clamping rod 231 by the spring plunger 233 is opposite to the force applied to the clamping rod 231 by the clamping rod actuator 232. The clamping rod actuator 232 can drive the clamping rod 231 to rotate and overcome the resistance of the spring plunger 233, causing the clamping rod 231 to rotate counterclockwise. The spring plunger 233 buffers the rotation of the clamping rod 231, reducing the force when the clamping rod 231 clamps the magnetic yoke 200. When the clamping rod actuator 232 does not apply force to the clamping rod 231, the spring plunger 233 assists the clamping rod 231 to rotate clockwise and return to its original position. When the clamping rod 231 is not clamped, the clamping rod driver 232 and the spring plunger 233 play a bidirectional limiting role on the clamping rod 231, preventing the clamping rod 231 from swinging clockwise or counterclockwise.

[0075] The clamping rod driver 232 is a cylinder. The piston rod of the cylinder is not connected to the clamping rod 231. Therefore, when the cylinder does not apply force to the clamping rod 231, the spring plunger 233 assists the clamping rod 231 to reset.

[0076] One end of the clamping rod 231 is connected to an adjusting screw 234. One end of the adjusting screw 234 passes through the clamping rod 231 and abuts against the clamping seat 22. The adjusting screw 234 is screwed to the clamping rod 231. Adjusting the adjusting screw 234 is used to change the distance between the other end of the clamping rod 231 and the magnetic yoke 200. It can be adjusted according to the thickness of the magnetic yoke 200 and the support plate 100 stacked together. It is suitable for positioning magnetic yokes 200 and support plates 100 of different specifications.

[0077] Optionally, the clamping seat 22 includes a clamping seat body 221 and a positioning member 222. The positioning member 222 is installed on the clamping seat body 221. The positioning member 222 has a first leg and a second leg. The first leg is positioned above one end of the clamping rod 231. A spring plunger 233 is installed on the first leg. The second leg is located between the clamping rod driver 232 and the clamping rod 231. An adjusting screw 234 passes through the clamping rod 231 and abuts against the second leg.

[0078] Optionally, the clamping seat 22 is provided with a rotating shaft, which is rotatably connected to the clamping seat 22 through a bearing, and the clamping rod 231 is fixedly connected to the rotating shaft, thereby improving the smoothness of the rotation of the clamping rod 231.

[0079] In some other embodiments, the clamping rod and the clamping seat are slidably connected in the vertical direction, and the clamping rod driver drives the clamping rod to move in the vertical direction, thereby achieving the clamping rod to clamp or loosen the magnetic yoke.

[0080] In order not to affect the assembly of the iron core assembly 300 with the support plate 100 and the magnetic yoke 200, the other end of the clamping rod 231 is relatively small. The clamping rod 231 needs to have sufficient rigidity and elasticity. Therefore, the material of the clamping rod 231 is 60Mn and it is heat treated.

[0081] like Figure 16 As shown, the clamping drive 21 is a cylinder. The piston rod of the clamping drive 21 is floatingly connected to the clamping seat 22. The clamping seat 22 is slidably connected to the base 4. The clamping drive 21 is fixed on the base 4.

[0082] The clamping seat 22 is provided with a clamping limit screw 24 on the side facing the positioning mechanism 1. The position of the clamping limit screw 24 is adjustable, thereby adjusting the distance between the clamping limit screw 24 and the positioning mechanism 1. The clamping limit screw 24 can limit the extreme position of the clamping rod 231 moving toward the positioning mechanism 1. When the clamping limit screw 24 abuts against the positioning seat 11 of the positioning mechanism 1, it indicates that the clamping rod 231 has moved into place and plays the role of clamping the magnetic yoke 200.

[0083] In some embodiments, combined with Figure 5 and Figure 17 As shown, the pushing assembly 32 includes a mounting base 321, a pushing rod 322, and a trigger 323. A pneumatic drive unit 31 is connected to the mounting base 321. The first end of the pushing rod 322 and the trigger 323 are respectively connected to the mounting base 321. The trigger 323 is used to trigger the position detection unit 33. The second end of the pushing rod 322 has a protruding pressing block 324. The pressing block 324 presses against the surface of the core assembly 300 away from the assembly position. The pressing block 324 and the positioning seat 11 cooperate to limit the core assembly 300, preventing the core assembly 300 from jumping up and down during the pushing process. The end face of the second end of the pushing rod 322 matches the shape of the side of the core assembly 300, ensuring that the core assembly 300 is pushed into place, thereby ensuring that the core assembly 300 is assembled with the support plate 100 and the magnetic yoke 200.

[0084] The pneumatic drive component 31 is floatingly connected to the mounting base 321, and the mounting base 321 is slidably connected to the base 4, so that the mounting base 321 slides along a predetermined trajectory, and the second end of the push rod 322 can accurately dock with the iron core assembly 300 placed at the loading position.

[0085] The triggering element 323 includes a trigger screw, which is screwed to the mounting base 321. The position detection element 33 is a micro switch. When the iron core assembly 300 is assembled with the support plate 100 and the magnetic yoke 200, the trigger screw triggers the micro switch. The signal triggered by the micro switch is transmitted to the controller. The controller then determines whether the assembled product is qualified based on the air pressure value provided to the pneumatic drive element 31.

[0086] Mounting base 321 is also connected to assembly limit screw 35. The position of assembly limit screw 35 is adjustable, thereby adjusting the distance between assembly limit screw 35 and positioning mechanism 1. Assembly limit screw 35 can limit the extreme position of push rod 322 moving toward positioning mechanism 1. When assembly limit screw 35 abuts against positioning seat 11 of positioning mechanism 1, it indicates that push rod 322 has moved into place, which plays the role of assembling iron core assembly 300 to magnetic yoke 200 and support plate 100.

[0087] In some embodiments, see continue to see Figure 5 As shown, the pneumatic control assembly 34 includes an air compressor, a first pressure regulating valve 341, a first pneumatic solenoid valve 342, a second pressure regulating valve 343, and a second pneumatic solenoid valve 344. The air supply end of the air compressor is connected to the pneumatic drive component 31 through a first air pipe. The first air pipe is equipped with the first pressure regulating valve 341 and the first pneumatic solenoid valve 342. A second air pipe is connected between the air inlet end of the first pressure regulating valve 341 and the air outlet end of the first pneumatic solenoid valve 342. The second air pipe is equipped with the second pressure regulating valve 343 and the second pneumatic solenoid valve 344. When one of the first pneumatic solenoid valve 342 and the second pneumatic solenoid valve 344 is open, the other is closed, thereby providing air with different pressure values ​​to the pneumatic drive component 31. The first pressure regulating valve 341 and the second pressure regulating valve 343 can adjust the air pressure value entering the pneumatic drive component 31. The first pneumatic solenoid valve 342 closes the first air pipe, and the second pneumatic solenoid valve 344 closes the second air pipe. When air with a first pressure value needs to be supplied to the pneumatic actuator 31, the second pneumatic solenoid valve 344 is closed and the first pneumatic solenoid valve 342 is opened. When air with a second pressure value needs to be supplied to the pneumatic actuator 31, the first pneumatic solenoid valve 342 is closed and the second pneumatic solenoid valve 344 is opened.

[0088] Example 2

[0089] like Figure 18 As shown, this embodiment provides an assembly method for an electromagnetic trip unit, applied in the assembly device of the electromagnetic trip unit of Embodiment 1. The assembly method includes:

[0090] Step 1: Place the assembled support plate 100 and magnetic yoke 200 at the assembly position, and place the iron core assembly 300 at the loading position.

[0091] Specifically, the support plate 100 and the magnetic yoke 200 are placed in the assembly position manually, and the iron core assembly 300 is placed in the loading position.

[0092] Step 2: Position the support plate 100 and the magnetic yoke 200 at the assembly position.

[0093] Specifically, the clamping drive 21 is activated, causing the clamping drive 21 to drive the clamping seat 22 to move, which in turn drives the clamping rod assembly 23 to move. The clamping rod assembly 23 presses against the magnetic yoke 200, positioning the magnetic yoke 200 and the support plate 100 in the assembly position.

[0094] Furthermore, after the clamping drive 21 drives the clamping seat 22 to move, so that the other end of the clamping rod 231 of the clamping rod assembly 23 is placed above the magnetic yoke 200, the clamping rod driver 232 of the clamping rod assembly 23 drives one end of the clamping rod 231 to rotate, so that the other end of the clamping rod 231 presses against the magnetic yoke 200.

[0095] Step 3: Provide air of a first air pressure value to the pneumatic drive unit 31, so that the pneumatic drive unit 31 drives the pushing assembly 32 to move toward the loading position, and the pushing assembly 32 pushes the iron core assembly 300 placed at the loading position.

[0096] Specifically, by adjusting the first pressure regulating valve 341, the air pressure entering the pneumatic drive unit 31 through the first air pipe is set to a first air pressure value. By adjusting the second pressure regulating valve 343, the air pressure entering the pneumatic drive unit 31 through the second air pipe is set to a second air pressure value. The first pneumatic solenoid valve 342 is opened, and the second pneumatic solenoid valve 344 is closed, supplying air of the first air pressure value to the pneumatic drive unit 31.

[0097] Step 4: If the push assembly 32 triggers the position detection component 33, it is determined that the assembly of the core assembly 300 with the support plate 100 and the magnetic yoke 200 is unqualified.

[0098] Specifically, when air with a relatively low pressure is supplied to the pneumatic drive component 31, the push assembly 32 triggers the position detection component 33, indicating that the core assembly 300 is properly assembled. This means that a relatively small assembly force was used to assemble the core assembly 300 with the support plate 100 and the magnetic yoke 200. If the assembly of the core assembly 300 with the support plate 100 and the magnetic yoke 200 is loose, then the assembly of the core assembly 300 with the support plate 100 and the magnetic yoke 200 is considered unqualified. At this time, the controller can issue an alarm signal to remind the operator to remove the unqualified product.

[0099] Step 5: If the pushing component 32 does not trigger the position detection component 33, then provide air of the second air pressure value to the pneumatic drive component 31, so that the pneumatic drive component 31 drives the pushing component 32 to push the iron core component 300 to continue moving.

[0100] Specifically, if the pushing component 32 does not trigger the position detection component 33, it means that the core component 300 has not been assembled in place. The first pneumatic solenoid valve 342 is closed, the second pneumatic solenoid valve 344 is opened, and air with the second air pressure value is supplied to the pneumatic drive component 31. The pneumatic drive component 31 drives the pushing component 32 to push the core component 300 to continue moving.

[0101] Furthermore, if the pushing component 32 does not trigger the position detection component 33, the first preset time is delayed, and then the second pneumatic solenoid valve 344 is opened to provide air of the second air pressure value to the pneumatic drive component 31, ensuring that the pushing component 32 cannot assemble the core component 300 into place.

[0102] The air supplying the pneumatic drive unit 31 with the second air pressure value needs to be maintained for a second preset time. After maintaining the second preset time, it is determined whether the pushing component 32 can trigger the position detection component 33.

[0103] Step 6: If the push assembly 32 triggers the position detection component 33, then it is determined that the assembly of the core assembly 300 with the support plate 100 and the magnetic yoke 200 is qualified.

[0104] Specifically, if the pushing component 32 triggers the position detection component 33, it indicates that the iron core component 300 is assembled with the support plate 100 and the magnetic yoke 200, the clamping mechanism 2 and the pressing mechanism 3 are reset, and the operator can take out the assembled product.

[0105] Step 7: If the pushing component 32 does not trigger the position detection component 33, then the assembly of the core component 300 with the support plate 100 and the magnetic yoke 200 is deemed unqualified.

[0106] Specifically, if the pushing component 32 fails to trigger the position detection component 33 within the second preset time, it proves that the iron core component 300 cannot be assembled in place, indicating that the iron core component 300 is too tightly fitted with the support plate 100 and the magnetic yoke 200. At this time, the controller can issue an alarm signal to remind the operator to remove the unqualified product.

[0107] The assembly method of the electromagnetic trip device provided in this embodiment can determine whether the assembly of the support plate 100, magnetic yoke 200 and iron core assembly 300 is qualified when assembling the support plate 100, magnetic yoke 200 and iron core assembly 300. This replaces the manual judgment of whether the assembly is qualified, improves the consistency of the assembly of the support plate 100, magnetic yoke 200 and iron core assembly 300, and thus improves the pass rate.

[0108] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An assembly device for an electromagnetic trip unit, the electromagnetic trip unit comprising a support plate (100), a magnetic yoke (200), and an iron core assembly (300), characterized in that, The assembly device includes: The positioning mechanism (1) has an assembly position and a loading position, wherein the assembly position is used to place the assembled support plate (100) and the magnetic yoke (200), and the loading position is used to place the iron core assembly (300); A clamping mechanism (2) is disposed on one side of the positioning mechanism (1), and the clamping mechanism (2) is used to position the support plate (100) and the magnetic yoke (200) at the assembly position; The pressing mechanism (3) includes a pneumatic drive (31), a pressing assembly (32), a position detection component (33), and a pneumatic control assembly (34). The pneumatic control assembly (34) is used to sequentially provide the pneumatic drive (31) with air of a first air pressure value and air of a second air pressure value, so that the pneumatic drive (31) drives the pressing assembly (32) to move toward the loading position, and moves the iron core assembly (300) placed at the loading position to the assembly position and connects it with the support plate (100) and the magnetic yoke (200). When the pneumatic drive (31) is provided with air of the second air pressure value and the position detection component (33) is triggered by the pressing assembly (32), it is determined that the iron core assembly (300) is assembled with the support plate (100) and the magnetic yoke (200) successfully. Wherein, the first air pressure value is less than the second air pressure value.

2. The assembly device for the electromagnetic trip unit according to claim 1, characterized in that, The pushing assembly (32) includes a mounting base (321), a pushing rod (322), and a trigger (323). The pneumatic drive (31) is connected to the mounting base (321). The first end of the pushing rod (322) and the trigger (323) are respectively connected to the mounting base (321). The trigger (323) is used to trigger the position detection component (33). The second end of the pushing rod (322) is provided with a pressing block (324). The pressing block (324) presses against the surface of the core assembly (300) away from the assembly position. The end face of the second end of the pushing rod (322) is adapted to the shape of the side of the core assembly (300).

3. The assembly device for the electromagnetic trip unit according to claim 1, characterized in that, The pneumatic control component (34) includes an air compressor, a first pressure regulating valve (341), a first pneumatic solenoid valve (342), a second pressure regulating valve (343), and a second pneumatic solenoid valve (344). The air supply end of the air compressor is connected to the pneumatic drive component (31) through a first air pipe. The first air pipe is provided with the first pressure regulating valve (341) and the first pneumatic solenoid valve (342). A second air pipe is connected between the air inlet end of the first pressure regulating valve (341) and the air outlet end of the first pneumatic solenoid valve (342). The second air pipe is provided with the second pressure regulating valve (343) and the second pneumatic solenoid valve (344). When one of the first pneumatic solenoid valve (342) and the second pneumatic solenoid valve (344) is open, the other is closed.

4. The assembly device for the electromagnetic trip unit according to claim 1, characterized in that, The positioning mechanism (1) includes a positioning seat (11), on which a positioning groove (12) is provided. The first end of the positioning groove (12) penetrates the side of the positioning seat (11). The first end of the positioning groove (12) is provided with the loading position. The second end of the positioning groove (12) is provided with the assembly position. The side wall of the second end of the positioning groove (12) and the two side walls adjacent to the second end of the positioning groove (12) are used to limit the support plate (100) and the magnetic yoke (200).

5. The assembly device for the electromagnetic trip unit according to claim 4, characterized in that, The support plate (100) includes a first plate (101), a second plate (102) and a third plate (103) connected in sequence. The widths of the first plate (101), the second plate (102) and the third plate (103) decrease in sequence. The second plate (102) has an upwardly bent first plate (104) on each of its opposite sides. The third plate (103) has a downwardly bent second plate (105) at one end away from the second plate (102). The first plate (101) has two fourth plates (106) spaced apart at one end away from the second plate (102). The magnetic yoke (200) has a U-shaped structure. The first side plate (201) of the magnetic yoke (200) is in contact with the third plate (103), the second plate (102) and the first plate (101), and the first side plate (201) is placed between the two fourth plates (106). The core assembly (300) has a first insertion slot (301) at one end facing the assembly position. The first side plate (201) is inserted into the first insertion slot (301). The ends of the two side walls of the first insertion slot (301) are respectively connected to U-shaped plates (302). The openings of the two U-shaped plates (302) are arranged facing each other. The fourth plate (106) is inserted into the corresponding U-shaped plate (302). The positioning groove (12) includes a first groove (121) and a second groove (122) that are connected. One end of the first groove (121) away from the second groove (122) passes through the side of the positioning seat (11). The second plate (102) and the third plate (103) are placed in the second groove (122). The width of the second groove (122) is adapted to the width of the second plate (102), and the first bent plate (104) abuts against the second plate (102). The second groove (122) has a groove wall, and a third groove (123) is recessed at the bottom of the second groove (122). The second bent plate (105) is inserted into the third groove (123). The third plate (103) and the bottom plate (202) of the magnetic yoke (200) both abut against the side wall of the second groove (122) away from the first groove (121). The two opposite side walls of the second groove (122) limit the first side plate (201) of the magnetic yoke (200). The first groove (121) is used to accommodate the first plate (101) and the fourth plate (106). The bottom of the first groove (121) is provided with a fourth groove (124) corresponding to the fourth plate (106). One end of the fourth groove (124) extends to the second groove (122), and the other end of the fourth groove (124) penetrates the side of the positioning seat (11). The fourth groove (124) is used to accommodate the U-shaped plate (302) of the core assembly (300).

6. The assembly device for the electromagnetic trip unit according to claim 5, characterized in that, The positioning seat (11) includes a first seat body (111) and a second seat body (112). The first seat body (111) and the second seat body (112) are detachably connected. The first seat body (111) is provided with a first groove (121). The two ends of the first groove (121) pass through the side wall of the first seat body (111). The second seat body (112) is provided with a second groove (122). The two ends of the second groove (122) pass through the side wall of the second seat body (112). A sealing member (113) is provided at the end of the second groove (122) away from the first groove (121). The sealing member (113) is detachably connected to the second seat body (112). The sealing member (113) blocks the end opening of the second groove (122), so that the third plate (103) and the bottom plate (202) of the magnetic yoke (200) both abut against the sealing member (113).

7. The assembly device for the electromagnetic trip unit according to claim 1, characterized in that, The magnetic yoke (200) is positioned above the support plate (100); The clamping mechanism (2) includes a clamping drive (21), a clamping seat (22), and a clamping rod assembly (23). The clamping rod assembly (23) is connected to the clamping seat (22). The clamping drive (21) is used to drive the clamping seat (22) to move, so that the clamping rod assembly (23) presses against the magnetic yoke (200), and so that the magnetic yoke (200) and the support plate (100) are positioned at the assembly position.

8. The assembly device for the electromagnetic trip unit according to claim 7, characterized in that, The clamping rod assembly (23) includes a clamping rod (231) and a clamping rod driver (232). The middle part of the clamping rod (231) is rotatably connected to the clamping seat (22). One end of the clamping rod (231) is connected to the clamping rod driver (232). The clamping rod driver (232) is connected to the clamping seat (22). The clamping rod driver (232) is used to drive the clamping rod (231) to rotate relative to the clamping seat (22), so that the other end of the clamping rod (231) presses against the magnetic yoke (200).

9. The assembly device for the electromagnetic trip unit according to claim 8, characterized in that, The clamping rod assembly (23) further includes a spring plunger (233), which is disposed on the clamping seat (22). The spring plunger (233) and the clamping rod driver (232) are disposed on opposite sides of the clamping rod (231). The force applied by the spring plunger (233) to the clamping rod (231) is opposite to the force applied by the clamping rod driver (232) to the clamping rod (231).

10. The assembly device for the electromagnetic trip unit according to claim 8, characterized in that, One end of the clamping rod (231) is connected to an adjusting screw (234). One end of the adjusting screw (234) passes through the clamping rod (231) and abuts against the clamping seat (22). The adjusting screw (234) is screwed to the clamping rod (231). Adjusting the adjusting screw (234) is used to change the distance between the other end of the clamping rod (231) and the magnetic yoke (200).

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