Relay and its iron stand automatic assembling mechanism and its assembling machine

Abstract

The application discloses a relay and an iron stand automatic assembling mechanism and an assembling machine thereof, which comprise an assembling platform, an assembling mechanism and a guide pressing mechanism, the assembling platform is horizontally arranged, and at least two assembling stations are arranged on the assembling platform; the assembling platform comprises a flexible pushing assembly and a limiting assembly, the flexible pushing assembly is arranged below the at least two assembling stations; the limiting assembly is arranged below the at least two assembling stations; the assembling mechanism is arranged above the assembling platform; and the guide pressing mechanism is arranged above the assembling platform and used for pre-pressing the bottom shell of the relay assembly in the assembling process. The application has the functions of flexible pushing and inclined top limiting, realizes automatic material changing in a bearing cycle, realizes the adsorption type material taking and placing of the bottom shell and the U-shaped iron stand through the embedded side suction, realizes the material taking and placing while effectively avoiding the motion interference in the assembling, simultaneously has the functions of movable assembling limiting, guide material pressing, elastic material pressing and post-assembling material pressing, and effectively improves the assembling precision and the position accuracy.

Description

Technical Field

[0001] This invention relates to the field of automatic relay assembly, specifically to an automatic assembly mechanism and assembly machine for a relay and its iron frame. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It has an interactive relationship between the control system (input circuit) and the controlled system (output circuit); it is commonly used in automated control circuits, and is essentially an "automatic switch" that uses a small current to control a large current; it plays roles in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] The relay structure comprises components such as a relay housing, a metal frame, magnetic blocks, and a core. The relay housing is a rectangular box-shaped structure with a cavity in the middle and an opening at the top for mounting other components. The relay metal frame is a U-shaped frame structure. Two metal frames need to be assembled within a single relay. After the two metal frames are symmetrically assembled to form a rectangular frame structure, magnetic blocks are vertically inserted into both ends of the rectangular frame structure. Then, the relay core is vertically inserted into the rectangular frame with the magnetic blocks, forming a semi-finished relay. Next, the semi-finished relay is assembled into the relay housing, and the bottom plate of the core is riveted and fixed to the metal frame. Finally, the semi-finished relay is assembled into the relay housing again, and the top cover is assembled to form the complete relay. Based on the assembly process and procedures required for the relay components, an automatic assembly mechanism for the relay and its metal frame needs to be designed to achieve automatic assembly of the relay components. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a relay and its automatic assembly mechanism and assembly machine for an iron frame, which has flexible material feeding and inclined top limiting functions, realizes automatic material changing in a bearing cycle, adopts embedded side suction to achieve adsorption-type material picking and placing on the bottom shell and U-shaped iron frame, effectively avoids motion interference during assembly while picking and placing materials, and has movable assembly limiting and guiding functions, elastic pressing and post-assembly pressing functions, effectively improving assembly accuracy and positional precision.

[0005] The technical solution adopted in this invention is as follows: An automatic assembly mechanism for a relay and its iron frame is installed inside an automatic relay assembly machine for automatically assembling relays. It includes an assembly platform, an assembly mechanism, and a guiding and pressing mechanism. The assembly platform is horizontally positioned and has at least two assembly stations. At least two relay carriers are placed on the at least two assembly stations, and at least two relay assemblies are placed on the relay carriers. The assembly platform includes a flexible pushing component and a limiting component. The flexible pushing component is positioned below the at least two assembly stations and outputs power in a straight line to drive the relay carriers to move between different assembly stations. The limiting component is positioned below the at least two assembly stations to limit the relay carriers at the assembly stations. The assembly mechanism is mounted above the assembly platform for transporting and assembling the relay assemblies. The guiding and pressing mechanism is mounted above the assembly platform to pre-press the bottom shell of the relay assembly during assembly and guides and flexibly presses down the iron frame placed inside the bottom shell, preventing the iron frame from moving upwards with the assembly mechanism.

[0006] Preferably, the assembly platform further includes a platform support and reference limiting strips, wherein the platform support is a multi-layer frame structure with a horizontal support at the top; at least two reference limiting strips are provided on the outer side of the horizontal support along the transverse and longitudinal directions respectively, and at least two assembly stations are arranged within the space formed by the at least two reference limiting strips; a vertically penetrating push slide and a limiting slide are provided on the horizontal support; the push slide includes at least two, and the at least two push slides are arranged in parallel and spaced apart.

[0007] Preferably, the flexible pushing assembly is disposed in the space between the upper and lower frame structures of the platform support. The flexible pushing assembly includes a pushing support plate, a pushing cylinder, a pushing connecting plate, a pushing slide, a pushing frame, and flexible pushing components. The pushing support plate is vertically disposed on the platform support and is arranged in a straight line along the direction of the pushing slide groove. A slide rail is provided on the side wall of the pushing support plate. The pushing cylinder is disposed at the lower part of the pushing support plate and outputs power along the direction of the pushing slide groove. The pushing slide is slidably embedded in the slide rail on the side wall of the pushing support plate and is connected to the output end of the pushing cylinder through the pushing connecting plate. The pushing frame is horizontally disposed on the top of the pushing slide and is located above the pushing support plate. The flexible pushing components include at least two sets, which are spaced apart on the pushing slide and are respectively arranged vertically and vertically corresponding to at least two pushing slide grooves.

[0008] Preferably, the flexible pushing component includes a pushing seat, a rotating shaft, a pushing block, and a pushing spring. The pushing seat is mounted on a pushing frame and protrudes upward, with an upward-facing U-shaped mounting groove. The rotating shaft is horizontally inserted into the U-shaped mounting groove. One end of the pushing block is rotatably sleeved on the rotating shaft, and the other end of the pushing block extends upward at an angle to form a sloping pressure surface. The lower part of the other end of the pushing block is vertically connected to a pushing spring, the lower end of which is located in the U-shaped mounting groove. In its natural state, the spring force of the pushing spring pushes the pushing block upward, causing the pushing block to extend from the bottom of the pushing groove and move linearly within the pushing groove via a pushing cylinder. This allows the relay carrier to move between different assembly stations. When the pushing block returns to its starting position after being pushed, the bottom surface of the relay carrier abuts against the sloping pressure surface of the pushing block, causing the pushing block to compress the pushing spring downward.

[0009] Preferably, the limiting component includes a limiting cylinder and an inclined limiting block. The limiting cylinder is disposed in the space between the upper and lower frame structures of the platform support and is correspondingly disposed below the limiting slide groove. The limiting cylinder outputs linear power inclined upward. The inclined limiting block is disposed on the output end of the limiting cylinder, and is driven by the limiting cylinder to pass through the limiting slide groove inclined upward and push against the relay carrier to limit and fix the relay carrier.

[0010] Preferably, the relay carrier includes a carrier and a support base. The carrier is a plate-shaped structure and is placed horizontally on the assembly platform. At least two product mounting positions are provided on the carrier at intervals. The support base includes at least two support bases, which are respectively located at at least two product mounting positions. The support base has a downwardly recessed support groove for placing the relay assembly.

[0011] Preferably, the relay assembly includes a bottom shell, a core, an iron frame, and magnetic blocks. The bottom shell is a shell-shaped structure with an open top. The iron frame is a U-shaped support structure, comprising two iron frames symmetrically spaced to form a rectangular frame structure. The magnetic blocks are two pieces, each vertically inserted at both ends of the rectangular frame structure formed by the iron frames and adsorbed onto the inner wall of the iron frames to form an integral frame structure. This integral frame structure is inserted into the bottom shell. The core is inserted into the frame structure.

[0012] Preferably, the assembly mechanism includes an assembly bracket, a drive component, a support frame, a rotating component, and an assembly head. The assembly bracket is mounted on one side of the assembly platform and extends vertically upward. The drive component is mounted on the assembly bracket and outputs linear power in the longitudinal, transverse, and vertical directions. The support frame is mounted on the output end of the drive component and is located above the assembly platform. The rotating component is mounted at the bottom of the support frame and outputs rotational power in the horizontal plane. The assembly head is mounted on the output end of the rotating component.

[0013] Preferably, the driving component includes a first linear module, a second linear module, an assembly slide, and a third linear module, wherein the first linear module is horizontally mounted on the assembly support; the second linear module is mounted on the output end of the first linear module and outputs power in a direction perpendicular to the first linear module; the assembly slide is connected to the output end of the second linear module; the third linear module is mounted on the side wall of the assembly slide and outputs power in a vertical direction; the support frame is connected to the output end of the third linear module and is driven by the third linear module to move up and down; the rotating component includes a rotary cylinder and a rotary seat, wherein the rotary cylinder is horizontally mounted at the bottom of the support frame with its output end facing downwards; the rotary seat is horizontally mounted below the rotary cylinder, with one end connected to the output end of the rotary cylinder and the other end extending horizontally outwards; the assembly head is mounted at the lower part of the other end of the rotary seat.

[0014] Preferably, the assembly head includes a connecting post, a buffer spring, a material-picking seat, a suction block, and a spring seat. The connecting post is vertically inserted into the rotating seat and extends below it. The material-picking seat is located below the connecting post and has a vertically extending mounting hole. The connecting post is inserted into the mounting hole and is vertically movable. The buffer spring is sleeved on the connecting post, with its lower end abutting against the material-picking seat and its upper end passing through the rotating seat and abutting against the spring seat on the rotating seat. The material-picking seat has at least two mounting holes on its side. The suction block includes at least two blocks, each inserted into one of the at least two mounting holes, for adsorbing and fixing the inner wall of the iron frame of the relay assembly from the side.

[0015] Preferably, the guiding and pressing mechanism includes a pressing bracket, a pressing cylinder, a pressing lifting seat, and a pressing guide assembly. The pressing bracket is mounted above the assembly platform. The pressing cylinder is mounted on the top plate of the pressing bracket, and its output end extends vertically downward through the top plate. The pressing lifting seat is horizontally mounted below the top plate and is movably connected to the top plate via a guide post. The pressing lifting seat is connected to the pressing cylinder. The pressing guide assembly is mounted on the top plate and extends below the pressing lifting seat.

[0016] Preferably, the material pressing and guiding assembly includes a material pressing connecting seat, a lifting cylinder, a material pressing frame, an opening and closing cylinder, an opening and closing frame, and a guide plate. The material pressing connecting seat is connected to the top plate and extends horizontally outward. The lifting cylinder is vertically connected below the material pressing connecting seat, with its output end facing downward. The material pressing frame is connected to the output end of the lifting cylinder and extends horizontally outward. The side of the material pressing frame near the lifting cylinder is a horizontal support surface for placing the opening and closing cylinder, and the other side of the material pressing frame has a vertically penetrating guide groove. The output end of the opening and closing cylinder faces upward. Two opening and closing frames are included, each connected to the output end of the opening and closing cylinder, and driven by the opening and closing cylinder to move closer or further apart above the guide groove. Two guide plates are included, each disposed on one of the two opening and closing frames and extending obliquely downward into the guide groove. The guide plates are elastic sheets.

[0017] An assembly machine that includes a relay and its iron frame automatic assembly mechanism.

[0018] The beneficial effects of this invention are as follows: This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing a relay and its automatic iron frame assembly mechanism and assembly machine. This machine features flexible material feeding and inclined top limiting functions, enabling automatic material changing during load-bearing cycles. It employs an embedded side suction to achieve adsorption-type material handling for the bottom shell and U-shaped iron frame, effectively avoiding motion interference during assembly while handling materials. It also features movable assembly limiting and guiding functions, elastic pressing, and post-assembly pressing functions, effectively improving assembly accuracy and positional precision.

[0019] The present invention aims to provide a device installed in a relay assembly machine for the automatic and high-precision assembly of relay components such as the base and frame, thereby improving the efficiency and accuracy of automated relay assembly.

[0020] Specifically, to ensure material carrying capacity and maintain assembly continuity during the automated assembly process of relays, the assembly platform used in this invention for supporting the assembly process adopts an automatic cyclic material changing method. The upper horizontal support of the platform bracket of the upper and lower structure assembly platform serves as the carrying platform. Two parallel and spaced reference limit bars form a limiting space on it for placing multiple sets of relay carriers. The relay carriers are provided with multiple carrying grooves to support the simultaneous assembly of multiple relays. The horizontal support has vertically penetrating push grooves and limiting grooves. A flexible push component located below the horizontal support passes through the push grooves to place the relay carriers. The flexible pusher assembly is cyclically moved on the horizontal support to move the empty relay carrier to the bottom of the assembly mechanism. Simultaneously, a limiting component located below the horizontal support passes through a limiting groove and abuts against the relay carrier to maintain its positional stability during assembly. A key feature is that after the flexible pusher assembly pushes one set of relay carriers, it needs to return to the starting position before pushing the next set. If it maintains its upward extension from the pushing groove during the return process, it will interfere with the movement of another set of relay carriers. To solve this problem, one end of the pusher block of the flexible pusher assembly is inserted into the U-shaped mounting groove of the pusher seat. The rotating shaft allows for a rotatable connection. The other end of the push block has an upwardly extending inclined pressure surface, which serves as a transition point during the push-back process when it contacts the bottom of the relay carrier. Simultaneously, a push spring is vertically mounted at the lower part of the other end of the push block. During the push block's return, the relay carrier presses down on the push spring through the inclined pressure surface until the push block reaches the bottom of the relay carrier, returning to the initial push position to push the next set of relays. The inclined pressure surface of the push block and its rotatable mounting effectively solve the motion interference problem during the push-back process. At the same time, the upward force of the push spring allows the push block to pass through another set of relays. When the electrical carrier returns to its starting position, the push block is lifted upwards again to above the push groove to facilitate the pushing of the next set of relays. In addition, when the limiting component of the present invention releases the relay carrier after limiting, there is also a motion interference problem. To solve this problem, the limiting component of the present invention adopts an upward tilting power output method. That is, when limiting is required, the limiting cylinder of the limiting component tilts upwards to drive the inclined limiting block through the limiting groove to abut against the fixed relay carrier. After the materials on the relay carrier are assembled, the limiting cylinder tilts downwards to drive the inclined limiting block to tilt downwards to release the relay carrier and retract downwards to below the limiting groove.

[0021] Furthermore, regarding the assembly and placement of the relay base and the U-shaped iron frame, the assembly head of this invention employs an embedded side-suction method to pick up and place the relay base and the iron frame. This internal side-suction method effectively utilizes the shape and structure of the relay base and the iron frame, avoiding deformation damage to the relay base during external clamping. Moreover, since the iron frame is a rectangular frame structure symmetrically spliced ​​from two U-shaped frames, external clamping can easily cause positional misalignment between the two U-shaped frames, compromising the positional accuracy of the iron frame during material handling. In contrast, the internal side-suction fixing method of this invention independently adsorbs and fixes the two U-shaped frames during material handling, effectively maintaining the stability of the spliced ​​position of the two U-shaped frames. Additionally, during assembly, after the relay housing is placed on the relay carrier, the rectangular frame needs to be inserted into the relay housing from top to bottom. Because the relay... The gap between the inner wall of the device housing and the outer wall of the iron frame is small. Using an external clamping method, movement interference with the relay base housing is inevitable during the assembly of the iron frame. Therefore, the internal side suction fixing method of this invention can effectively avoid movement interference with the relay base housing during the insertion of the iron frame. Specifically, the material picking head of this invention uses a material picking seat as the execution structure. The side wall of the material picking seat has multiple mounting holes, and suction blocks are horizontally inserted into each of the mounting holes. The suction holes can be made of magnetic material so as to adsorb the metal relay base housing and iron frame during the picking and placing process. During the picking process, after the material picking seat extends into the relay base housing and iron frame, the suction blocks are used to fix the inner wall of the relay base housing or iron frame from the inside, thereby achieving adsorption and fixation. In addition, the material picking seat is connected and supported by a connecting column and a buffer spring, so that it has flexible buffering capacity in the vertical direction to avoid excessive pressure in the vertical direction during the picking and placing process, which may cause product damage.

[0022] In addition, for the assembly of relays, the present invention also designed a guiding and pressing mechanism to assist in guiding, limiting and pressing during the assembly process, so as to improve the assembly accuracy and effectively avoid the problem that the material picker pulls up the relay bottom shell or iron frame due to its adsorption force when it leaves the relay bottom shell or iron frame after the material is released. Specifically, the guiding and pressing mechanism is mounted above the assembly platform, with a pressing bracket as the supporting structure. A pressing cylinder vertically positioned on the pressing bracket provides the vertical driving force during pressing, driving the pressing lifting seat below to press horizontally downwards onto the relay base and its internally inserted iron frame on the assembly platform after assembly. This ensures the surface flatness of the assembled relay base and iron frame. Furthermore, after the relay base is assembled, the pressing guide component of the guiding and pressing mechanism horizontally presses the relay base from above to prevent the suction force from lifting the relay base from the relay carrier when the material take-up head moves upwards. Simultaneously, the pressing guide component also acts as a guide and limiter during the insertion of the iron frame, and uses elastic pressing to press the inserted iron frame downwards to prevent the suction force from lifting the iron frame from the relay base when the material take-up head moves upwards after insertion. Specifically, the material-pressing guide assembly uses a lifting cylinder to output power vertically to drive the horizontally connected material-pressing frame below to move up and down. The function of the material-pressing frame is to press and fix the relay bottom shell from above using the side of the material-pressing frame after the relay bottom shell is assembled. At the same time, the middle of the material-pressing frame has a vertically penetrating guide groove to facilitate the material-picking head to drive the iron frame through and insert the iron frame into the assembled relay bottom shell. Furthermore, the material-pressing frame is horizontally equipped with an opening and closing cylinder. The output end of the opening and closing cylinder drives two opening and closing frames on the material-pressing frame. The two opening and closing frames open outwards when the relay base is inserted. After the relay base is inserted, the two opening and closing frames close together, forming a rectangular frame above the guide groove. In addition, the two opening and closing frames are provided with inclined downward extending guide plates. When the iron frame is inserted, the inclined downward guide plates make oblique contact with the material picking head, which plays a transition role and avoids movement interference with the material picking head. At the same time, the elastic guide plates press the iron frame downwards elastically after the iron frame is inserted, preventing the material picking head from pulling out the iron frame when it is pulled upwards. Attached Figure Description

[0023] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0024] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0025] Figure 3 This is the third three-dimensional structural schematic diagram of the present invention.

[0026] Figure 4 This is one of the three-dimensional structural schematic diagrams of the assembly platform of the present invention.

[0027] Figure 5 This is the second three-dimensional structural schematic diagram of the assembly platform of the present invention.

[0028] Figure 6 for Figure 5 Enlarged structural diagram at point I.

[0029] Figure 7 This is a three-dimensional structural diagram of the assembly platform of the present invention after the hidden components are removed.

[0030] Figure 8 This is a three-dimensional structural diagram of the flexible push component of the present invention.

[0031] Figure 9 This is a schematic diagram showing the component breakdown structure of the flexible push assembly of the present invention.

[0032] Figure 10 This is one of the structural schematic diagrams of the relay carrier of the present invention.

[0033] Figure 11 This is the second schematic diagram of the relay carrier of the present invention.

[0034] Figure 12 This is the third schematic diagram of the relay carrier of the present invention.

[0035] Figure 13 This is a three-dimensional structural diagram of the assembly mechanism of the present invention.

[0036] Figure 14 This is a three-dimensional structural diagram of the assembly component of the present invention.

[0037] Figure 15 This is one of the structural schematic diagrams of the assembly head of the present invention.

[0038] Figure 16 This is the second schematic diagram of the assembly head of the present invention.

[0039] Figure 17 This is one of the three-dimensional structural schematic diagrams of the guiding and pressing mechanism of the present invention.

[0040] Figure 18 This is the second three-dimensional structural schematic diagram of the guiding and pressing mechanism of the present invention.

[0041] Figure 19 This is the third three-dimensional structural schematic diagram of the guiding and pressing mechanism of the present invention.

[0042] Figure 20 This is one of the three-dimensional structural schematic diagrams of the guiding and pressing mechanism of the present invention.

[0043] Figure 21 This is the second three-dimensional structural schematic diagram of the guiding and pressing mechanism of the present invention.

[0044] Figure 22 This is one of the component disassembly diagrams of the guiding and pressing mechanism of the present invention.

[0045] Figure 23 This is the second schematic diagram showing the component breakdown of the guiding and pressing mechanism of the present invention.

[0046] In the picture: 0. Relay assembly; 01. Base case; 02. Core; 03. Iron frame; 04. Magnetic block; 1. Assembly platform; 2. Assembly mechanism; 3. Guiding and pressing mechanism; 11. Platform support; 12. Flexible push assembly; 13. Limiting assembly; 14. Base limit bar; 15. Relay carrier; A. Pushing slide; B. Limiting slide; 121. Push support plate; 122. Push cylinder; 123. Push connecting plate; 124. Push slide; 125. Push frame; 126. Push seat; 127. Rotary shaft; 128. Push block; 129. Push spring; 131. Limiting cylinder; 132. Angled limiting block; 151. Carrier; 152. Bearing seat; C. Bearing groove; 21. Assemble the bracket; 22. First linear module; 23. Second linear module; 24. Assemble the slide; 25. Third linear module; 26. Support frame; 27. Rotary cylinder; 28. Rotary seat; 29. ​​Assemble the head; 291. Connecting post; 292. Buffer spring; 293. Material pick-up seat; 294. Suction block; 295. Spring seat; D. Mounting hole; 31. Material clamping bracket; 32. Material clamping cylinder; 33. Material clamping lifting seat; 34. Material clamping guide assembly; 341. Pressing connector; 342. Lifting cylinder; 343. Pressing frame; 344. Opening and closing cylinder; 345. Opening and closing frame; 346. Guide plate; E. Guide groove. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example 1

[0050] like Figures 1 to 8 As shown, this invention proposes an automatic assembly mechanism for a relay and its frame, installed inside an automatic relay assembly machine for automatically assembling relays. The mechanism includes an assembly platform 1, an assembly mechanism 2, and a guiding and pressing mechanism 3. The assembly platform 1 is horizontally positioned and has at least two assembly stations. At least two relay carriers 15 are placed on the at least two assembly stations, and at least two relay assemblies 0 are placed on the relay carriers 15. The assembly platform 1 includes a flexible pushing component 12 and a limiting component 13. The flexible pushing component 12 is positioned on at least two... The assembly station is located below the assembly station and outputs power in a straight line to drive the relay carrier 15 to move between different assembly stations; the limiting component 13 is located below at least two assembly stations to limit the relay carrier 15 at the assembly station; the assembly mechanism 2 is mounted above the assembly platform 1 to transport and assemble the relay assembly 0; the guiding and pressing mechanism 3 is mounted above the assembly platform 1 to pre-press the bottom shell 01 of the relay assembly 0 during the assembly process, and guides and flexibly presses down the iron frame 03 placed in the bottom shell 01, preventing the iron frame 03 from moving upward with the assembly mechanism 2.

[0051] This invention designs an automatic assembly mechanism and machine for relays and their iron frames, featuring flexible material feeding and inclined top limiting functions to achieve automatic material changing during load-bearing cycles. It employs an embedded side suction system for adsorption-type material handling of the base shell and U-shaped iron frame, effectively avoiding motion interference during assembly while handling materials. It also features movable assembly limiting and guiding functions, elastic pressing, and post-assembly pressing functions, effectively improving assembly accuracy and positional precision. This invention aims to provide a mechanism for the automatic, high-precision assembly of relay components such as the base shell and iron frame, set within a relay assembly machine, thereby improving the efficiency and accuracy of automated relay assembly.Specifically, to ensure material carrying capacity and maintain assembly continuity during the automated assembly process of relays, the assembly platform used in this invention for supporting the assembly process adopts an automatic cyclic material changing method. The upper horizontal support of the platform bracket of the upper and lower structure assembly platform serves as the carrying platform. Two parallel and spaced reference limit bars form a limiting space on it for placing multiple sets of relay carriers. The relay carriers are provided with multiple carrying grooves to support the simultaneous assembly of multiple relays. The horizontal support has vertically penetrating push grooves and limiting grooves. A flexible push component located below the horizontal support passes through the push grooves to place the relay carriers. The flexible pusher assembly is cyclically moved on the horizontal support to move the empty relay carrier to the bottom of the assembly mechanism. Simultaneously, a limiting component located below the horizontal support passes through a limiting groove and abuts against the relay carrier to maintain its positional stability during assembly. A key feature is that after the flexible pusher assembly pushes one set of relay carriers, it needs to return to the starting position before pushing the next set. If it maintains its upward extension from the pushing groove during the return process, it will interfere with the movement of another set of relay carriers. To solve this problem, one end of the pusher block of the flexible pusher assembly is inserted into the U-shaped mounting groove of the pusher seat. The rotating shaft allows for a rotatable connection. The other end of the push block has an upwardly extending inclined pressure surface, which serves as a transition point during the push-back process when it contacts the bottom of the relay carrier. Simultaneously, a push spring is vertically mounted at the lower part of the other end of the push block. During the push block's return, the relay carrier presses down on the push spring through the inclined pressure surface until the push block reaches the bottom of the relay carrier, returning to the initial push position to push the next set of relays. The inclined pressure surface of the push block and its rotatable mounting effectively solve the motion interference problem during the push-back process. At the same time, the upward force of the push spring allows the push block to pass through another set of relays. When the electrical carrier returns to its starting position, the push block is lifted upwards again to above the push groove to facilitate the pushing of the next set of relays. In addition, when the limiting component of the present invention releases the relay carrier after limiting, there is also a motion interference problem. To solve this problem, the limiting component of the present invention adopts an upward tilting power output method. That is, when limiting is required, the limiting cylinder of the limiting component tilts upwards to drive the inclined limiting block through the limiting groove to abut against the fixed relay carrier. After the materials on the relay carrier are assembled, the limiting cylinder tilts downwards to drive the inclined limiting block to tilt downwards to release the relay carrier and retract downwards to below the limiting groove. Example 2

[0052] like Figures 10 to 12 , Figures 15 to 16As shown in the figure, as an embodiment of the present invention, the relay assembly 0 of the present invention includes a bottom shell 01, a core 02, an iron frame 03, and a magnet 04. The bottom shell 01 is a box-shaped structure with an open top. The iron frame 03 is a U-shaped frame structure, and the iron frame 03 includes two pieces. The two iron frames 03 are symmetrically arranged and combined to form a rectangular frame structure, which is then inserted into the bottom shell 01. The magnet 04 includes two pieces, and the two magnets 04 are vertically inserted into the inner ends of the rectangular frame structure assembled by the iron frames 03, and are respectively attracted and fixed to the inner walls of the two ends of the rectangular frame structure. The core 02 is inserted into the rectangular frame structure formed by the iron frames 03.

[0053] The relay carrier 15 of the present invention includes a carrier 151 and a support 152. The carrier 151 is a plate-shaped structure and is placed horizontally on the assembly platform 1. At least two product mounting positions are provided on the carrier 151 at intervals. The support 152 includes at least two supports 152, which are respectively provided at at least two product mounting positions. The support 152 is provided with a downwardly recessed support groove C for placing the relay assembly 0. Example 3

[0054] like Figures 4 to 7 As shown in the figure, as an embodiment of the present invention, the assembly platform 1 of the present invention further includes a platform support 11 and reference limiting strips 14. The platform support 11 is a frame structure with upper and lower layers, and its top is a horizontal support platform. At least two reference limiting strips 14 are provided on the outer side of the horizontal support platform along the horizontal direction and the longitudinal direction, respectively. At least two assembly stations are arranged in the space formed by the at least two reference limiting strips 14. The horizontal support platform is provided with a vertically penetrating push slide A and a limiting slide B. The push slide A includes at least two push slides, and the at least two push slides A are arranged in parallel and spaced apart. Example 4

[0055] like Figures 8 to 9As shown in the figure, as an embodiment of the present invention, the flexible pushing component 12 is disposed in the space between the upper and lower frame structures of the platform support 11. The flexible pushing component 12 includes a pushing support plate 121, a pushing cylinder 122, a pushing connecting plate 123, a pushing slide 124, a pushing frame 125, and flexible pushing parts. The pushing support plate 121 is vertically disposed on the platform support 11 and is arranged in a straight line along the direction of the pushing slide groove A. A slide rail is provided on the side wall of the pushing support plate 121. The pushing cylinder 122 is disposed in the pushing... The lower part of the support plate 121 outputs power along the direction of the push slide groove A; the push slide 124 is slidably embedded in the slide rail on the side wall of the push support plate 121 and is connected to the output end of the push cylinder 122 through the push connecting plate 123; the push frame 125 is horizontally arranged on the top of the push slide 124 and located above the push support plate 121; the flexible push component includes at least two sets, and the at least two sets of flexible push components are spaced apart on the push slide 124 and are respectively arranged vertically and vertically corresponding to at least two push slide grooves A.

[0056] The flexible pushing component includes a pushing seat 126, a rotating shaft 127, a pushing block 128, and a pushing spring 129. The pushing seat 126 is mounted on the pushing frame 125 and protrudes upwards, with an upward-facing U-shaped mounting groove. The rotating shaft 127 is horizontally inserted into the U-shaped mounting groove. One end of the pushing block 128 is rotatably fitted onto the rotating shaft 127, while the other end of the pushing block 128 extends upwards at an angle, forming a sloped pressure surface. The lower part of the other end of the pushing block 128 is vertically connected to the pushing spring 129. 29. The lower end of the push spring 129 is set in the U-shaped mounting groove. In its natural state, the elastic force of the push spring 129 pushes the push block 128 upward, so that the push block 128 extends from the bottom to the top from the push slide A and is driven by the push cylinder 122 to move linearly in the push slide A, so as to push the relay carrier 15 to move between different assembly stations. When the push block 128 returns to the starting position after being pushed, the bottom surface of the relay carrier 15 abuts against the inclined pressing surface of the push block 128, so that the push block 128 compresses the push spring 129 downward. Example 5

[0057] like Figures 5 to 6 As shown in the figure, as an embodiment of the present invention, the limiting component 13 of the present invention includes a limiting cylinder 131 and an inclined limiting block 132. The limiting cylinder 131 is disposed in the space between the upper and lower frame structures of the platform support 11 and is correspondingly disposed below the limiting slide groove B. The limiting cylinder 131 outputs linear power inclined upward. The inclined limiting block 132 is disposed on the output end of the limiting cylinder 131, and is driven by the limiting cylinder 131 to pass through the limiting slide groove B inclined upward and push against the relay carrier 15 for limiting and fixing the relay carrier 15. Example 6

[0058] like Figures 13 to 14 As shown in the figure, as an embodiment of the present invention, the assembly mechanism 2 of the present invention includes an assembly bracket 21, a driving component, a support frame 26, a rotating component, and an assembly head 29. The assembly bracket 21 is mounted on one side of the assembly platform 1 and extends vertically upward. The driving component is disposed on the assembly bracket 21 and outputs linear power in the longitudinal, transverse, and vertical directions. The support frame 26 is disposed on the output end of the driving component and is located above the assembly platform 1. The rotating component is disposed at the bottom of the support frame 26 and outputs rotational power in the horizontal plane. The assembly head 29 is disposed on the output end of the rotating component.

[0059] The driving component includes a first linear module 22, a second linear module 23, an assembly slide 24, and a third linear module 25. The first linear module 21 is horizontally mounted on the assembly support 21. The second linear module 23 is mounted on the output end of the first linear module 22 and outputs power in a direction perpendicular to the first linear module 22. The assembly slide 24 is connected to the output end of the second linear module 23. The third linear module 25 is mounted on the side wall of the assembly slide 24 and outputs power vertically. The support frame 26 is connected to the output end of the third linear module 25 and is driven by the third linear module 25 to move up and down. The rotating component includes a rotary cylinder 27 and a rotary seat 28. The rotary cylinder 27 is horizontally mounted at the bottom of the support frame 26 with its output end facing downwards. The rotary seat 28 is horizontally mounted below the rotary cylinder 27, with one end connected to the output end of the rotary cylinder 27 and the other end extending horizontally outwards. The assembly head 29 is located at the lower part of the other end of the rotary seat 28.

[0060] like Figures 15 to 16 As shown in the figure, as an embodiment of the present invention, the assembly head 29 of the present invention includes a connecting post 291, a buffer spring 292, a material picking seat 293, a suction block 294, and a spring seat 295. The connecting post 291 is vertically inserted into the rotating seat 28 and extends below the rotating seat 28. The material picking seat 293 is disposed below the connecting post 291, and a vertically extending mounting hole D is formed within the material picking seat 293. The connecting post 291 is inserted into the mounting hole D, and... It is movable in the vertical direction; the buffer spring 292 is sleeved on the connecting column 291, the lower end of the buffer spring 292 abuts against the material picking seat 293, and the upper end passes through the rotating seat 28 and abuts against the spring seat 295 provided on the rotating seat 28; the side of the material picking seat 293 is provided with at least two mounting holes; the suction block 294 includes at least two blocks, and the at least two suction blocks 294 are respectively inserted into the at least two mounting holes for adsorbing and fixing the inner side wall of the iron frame 03 of the relay assembly 0 from the side.

[0061] This invention addresses the assembly and placement of relay housings and U-shaped iron frames. The assembly mechanism employs an embedded side-suction method to pick up and place the relay housing and iron frame. This internal side-suction method effectively utilizes the shape and structure of the relay housing and iron frame, avoiding deformation damage to the relay housing during external clamping. Furthermore, since the iron frame is a rectangular frame structure symmetrically spliced ​​from two U-shaped frames, external clamping can easily cause positional misalignment between the two U-shaped frames, compromising the frame's positional accuracy. The internal side-suction fixing method of this invention independently adheres and fixes the two U-shaped frames during material handling, effectively maintaining the stability of their spliced ​​position. Additionally, during assembly, after the relay housing is placed on the relay carrier, the rectangular iron frame needs to be inserted into the relay housing from top to bottom. Because the relay... The gap between the inner wall of the device housing and the outer wall of the iron frame is small. Using an external clamping method, movement interference with the relay base housing is inevitable during the assembly of the iron frame. Therefore, the internal side suction fixing method of this invention can effectively avoid movement interference with the relay base housing during the insertion of the iron frame. Specifically, the material picking head of this invention uses a material picking seat as the execution structure. The side wall of the material picking seat has multiple mounting holes, and suction blocks are horizontally inserted into each of the mounting holes. The suction holes can be made of magnetic material so as to adsorb the metal relay base housing and iron frame during the picking and placing process. During the picking process, after the material picking seat extends into the relay base housing and iron frame, the suction blocks are used to fix the inner wall of the relay base housing or iron frame from the inside, thereby achieving adsorption and fixation. In addition, the material picking seat is connected and supported by a connecting column and a buffer spring, so that it has flexible buffering capacity in the vertical direction to avoid excessive pressure in the vertical direction during the picking and placing process, which may cause product damage. Example 7

[0062] like Figures 17 to 19 As shown in the figure, as an embodiment of the present invention, the guiding and pressing mechanism 3 of the present invention includes a pressing bracket 31, a pressing cylinder 32, a pressing lifting seat 33, and a pressing guide assembly 34. The pressing bracket 31 is mounted above the assembly platform 1; the pressing cylinder 32 is mounted on the top plate of the pressing bracket 31, and its output end extends vertically downward through the top plate; the pressing lifting seat 33 is horizontally mounted below the top plate and is movably connected to the top plate through a guide post, and the pressing lifting seat 33 is connected to the pressing cylinder 32; the pressing guide assembly 34 is mounted on the top plate and extends below the pressing lifting seat 33.

[0063] like Figures 20 to 23As shown in the figure, as an embodiment of the present invention, the pressing guide assembly 34 of the present invention includes a pressing connecting seat 341, a lifting cylinder 342, a pressing frame 343, an opening and closing cylinder 344, an opening and closing frame 345, and a guide plate 346. The pressing connecting seat 341 is connected to the top plate and extends horizontally outward; the lifting cylinder 342 is vertically connected below the pressing connecting seat 341, with its output end facing downward; the pressing frame 343 is connected to the output end of the lifting cylinder 342 and extends horizontally outward, with the side of the pressing frame 343 closest to the lifting cylinder 342... The horizontal support surface is used to place the opening and closing cylinder 344. The other side of the pressure frame 343 is provided with a vertically penetrating guide groove E. The output end of the opening and closing cylinder 344 is set upward. There are two opening and closing frames 345, which are respectively connected to the output end of the opening and closing cylinder 344 and driven by the opening and closing cylinder 344 to move closer or further away from each other above the guide groove E. There are two guide plates 346, which are respectively set on the two opening and closing frames 345 and extend downward at an angle into the guide groove E. The guide plates 346 are elastic sheets.

[0064] For the assembly of relays, this invention designs a guiding and pressing mechanism to assist in guiding, limiting and pressing materials during the assembly process, so as to improve the assembly accuracy and effectively avoid the problem that the material picker head pulls up the relay bottom shell or iron frame due to its adsorption force when it leaves the relay bottom shell or iron frame after the material is released. Specifically, the guiding and pressing mechanism is mounted above the assembly platform, with a pressing bracket as the supporting structure. A pressing cylinder vertically positioned on the pressing bracket provides the vertical driving force during pressing, driving the pressing lifting seat below to press horizontally downwards onto the relay base and its internally inserted iron frame on the assembly platform after assembly. This ensures the surface flatness of the assembled relay base and iron frame. Furthermore, after the relay base is assembled, the pressing guide component of the guiding and pressing mechanism horizontally presses the relay base from above to prevent the suction force from lifting the relay base from the relay carrier when the material take-up head moves upwards. Simultaneously, the pressing guide component also acts as a guide and limiter during the insertion of the iron frame, and uses elastic pressing to press the inserted iron frame downwards to prevent the suction force from lifting the iron frame from the relay base when the material take-up head moves upwards after insertion. Specifically, the material-pressing guide assembly uses a lifting cylinder to output power vertically to drive the horizontally connected material-pressing frame below to move up and down. The function of the material-pressing frame is to press and fix the relay bottom shell from above using the side of the material-pressing frame after the relay bottom shell is assembled. At the same time, the middle of the material-pressing frame has a vertically penetrating guide groove to facilitate the material-picking head to drive the iron frame through and insert the iron frame into the assembled relay bottom shell. Furthermore, the material-pressing frame is horizontally equipped with an opening and closing cylinder. The output end of the opening and closing cylinder drives two opening and closing frames on the material-pressing frame. The two opening and closing frames open outwards when the relay base is inserted. After the relay base is inserted, the two opening and closing frames close together, forming a rectangular frame above the guide groove. In addition, the two opening and closing frames are provided with inclined downward extending guide plates. When the iron frame is inserted, the inclined downward guide plates make oblique contact with the material picking head, which plays a transition role and avoids movement interference with the material picking head. At the same time, the elastic guide plates press the iron frame downwards elastically after the iron frame is inserted, preventing the material picking head from pulling out the iron frame when it is pulled upwards. Example 8

[0065] As an embodiment of the present invention, the present invention discloses an assembly machine including a relay and an automatic assembly mechanism for its iron frame.

[0066] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. A relay and its iron frame automatic assembly mechanism, installed inside an automatic relay assembly machine, for automatically assembling relays, characterized in that: It includes an assembly platform (1), an assembly mechanism (2), and a guiding and pressing mechanism (3), wherein, The assembly platform (1) is set horizontally, and at least two assembly stations are set on the assembly platform (1). At least two relay carriers (15) are placed on the at least two assembly stations, and at least two relay assemblies (0) are placed on the relay carriers (15). The assembly platform (1) includes a flexible pushing component (12) and a limiting component (13). The flexible pushing component (12) is disposed below at least two assembly stations and outputs power in a straight line to drive the relay carrier (15) to move between different assembly stations. The limiting component (13) is disposed below at least two assembly stations to limit the relay carrier (15) at the assembly station. The assembly mechanism (2) is mounted above the assembly platform (1) and is used to transport and assemble the relay assembly (0). The guiding and pressing mechanism (3) is mounted above the assembly platform (1) and is used to pre-press the bottom shell (01) of the relay assembly (0) during the assembly process. It also guides and flexibly presses down the iron frame (03) placed in the bottom shell (01) to prevent the iron frame (03) from moving upward with the assembly mechanism (2). The assembly platform (1) also includes a platform support (11) and reference limiting strips (14). The platform support (11) is a frame structure with upper and lower layers, and its top is a horizontal support. At least two reference limiting strips (14) are provided on the outer side of the horizontal support along the horizontal and longitudinal directions, and at least two assembly stations are set in the space formed by the at least two reference limiting strips (14). The horizontal support is provided with a push slide (A) and a limiting slide (B) that are connected vertically. The push slide (A) includes at least two, and the at least two push slides (A) are arranged in parallel and spaced apart. The flexible pushing component (12) is disposed in the space between the upper and lower frame structures of the platform support (11). The flexible pushing component (12) includes a pushing support plate (121), a pushing cylinder (122), a pushing connecting plate (123), a pushing slide (124), a pushing frame (125), and flexible pushing parts. The pushing support plate (121) is vertically disposed on the platform support (11) and is arranged in a straight line along the direction of the pushing slide groove (A). A slide rail is provided on the side wall of the pushing support plate (121). The pushing cylinder (122) is disposed on the pushing support plate (121). The lower part of the push slide (124) outputs power along the direction of the push slide (A); the push slide (124) is slidably embedded in the slide rail on the side wall of the push support plate (121) and is connected to the output end of the push cylinder (122) through the push connecting plate (123); the push frame (125) is horizontally arranged on the top of the push slide (124) and located above the push support plate (121); the flexible push component includes at least two sets, and at least two sets of flexible push components are spaced apart on the push slide (124) and are respectively arranged vertically and vertically corresponding to at least two push slides (A); The flexible pushing component includes a pushing seat (126), a rotating shaft (127), a pushing block (128), and a pushing spring (129). The pushing seat (126) is mounted on the pushing frame (125) and protrudes upwards. A U-shaped mounting groove with an upward opening is provided on the pushing seat (126). The rotating shaft (127) is horizontally inserted into the U-shaped mounting groove. One end of the pushing block (128) is rotatably sleeved on the rotating shaft (127), and the other end of the pushing block (128) extends upwards at an angle, forming a sloping pressure surface. A pushing spring (129) is vertically connected to the lower part of the other end of the pushing block (128). 29) The lower end of the push spring (129) is set in the U-shaped mounting groove. In the natural state, the elastic force of the push spring (129) pushes the push block (128) upward, so that the push block (128) extends from the bottom to the top from the push slide (A) and is driven by the push cylinder (122) to move linearly in the push slide (A) so as to push the relay carrier (15) to move between different assembly stations. When the push block (128) returns to the starting position after being pushed, the bottom surface of the relay carrier (15) pushes the inclined pressing surface of the push block (128) so that the push block (128) compresses the push spring (129) downward.

2. The relay and its iron frame automatic assembly mechanism according to claim 1, characterized in that: The limiting component (13) includes a limiting cylinder (131) and an inclined limiting block (132). The limiting cylinder (131) is located in the space between the upper and lower frame structures of the platform support (11) and is located below the limiting slide groove (B). The limiting cylinder (131) outputs linear power at an inclined upward. The inclined limiting block (132) is located on the output end of the limiting cylinder (131). Driven by the limiting cylinder (131), it passes through the limiting slide groove (B) at an inclined upward and pushes against the relay carrier (15) to limit and fix the relay carrier (15).

3. The relay and its iron frame automatic assembly mechanism according to claim 1, characterized in that: The relay carrier (15) includes a carrier (151) and a support (152). The carrier (151) is a plate-shaped structure and is placed horizontally on the assembly platform (1). At least two product mounting positions are provided on the carrier (151) at intervals. The support (152) includes at least two support seats (152) and is respectively provided at at least two product mounting positions. The support seat (152) is provided with a downwardly recessed support groove (C) for placing the relay assembly (0).

4. The relay and its iron frame automatic assembly mechanism according to claim 1, characterized in that: The relay assembly (0) includes a bottom shell (01), a core (02), an iron frame (03), and a magnetic block (04). The bottom shell (01) is a shell-shaped structure with an open top. The iron frame (03) is a U-shaped support structure. There are two iron frames (03), which are symmetrically spaced to form a rectangular frame structure. There are two magnetic blocks (04), which are vertically inserted into the two ends of the rectangular frame structure formed by the iron frames (03) and adsorbed onto the inner wall of the iron frames (03) to form an integral frame structure. The integral frame structure is inserted into the bottom shell (01). The core (02) is inserted into the frame structure.

5. The relay and its iron frame automatic assembly mechanism according to claim 1, characterized in that: The assembly mechanism (2) includes an assembly bracket (21), a drive component, a support frame (26), a rotating component, and an assembly head (29). The assembly bracket (21) is mounted on one side of the assembly platform (1) and extends vertically upward. The drive component is mounted on the assembly bracket (21) and outputs linear power in the longitudinal, transverse, and vertical directions. The support frame (26) is mounted on the output end of the drive component and is located above the assembly platform (1). The rotating component is mounted at the bottom of the support frame (26) and outputs rotational power in the horizontal plane. The assembly head (29) is mounted on the output end of the rotating component.

6. The relay and its iron frame automatic assembly mechanism according to claim 5, characterized in that: The driving components include a first linear module (22), a second linear module (23), an assembly slide (24), and a third linear module (25). The first linear module (22) is horizontally mounted on the assembly bracket (21). The second linear module (23) is mounted on the output end of the first linear module (22) and outputs power in a direction perpendicular to the first linear module (22). The assembly slide (24) is connected to the output end of the second linear module (23). The third linear module (25) is mounted on the side wall of the assembly slide (24) and outputs power in a vertical direction. The support frame (26) is connected to the output end of the third linear module (25) and moves up and down driven by the third linear module (25). The rotating component includes a rotating cylinder (27) and a rotating seat (28). The rotating cylinder (27) is horizontally disposed at the bottom of the support frame (26) with its output end facing downward. The rotating seat (28) is horizontally disposed below the rotating cylinder (27). One end of the rotating seat (28) is connected to the output end of the rotating cylinder (27), and the other end extends horizontally outward. The assembly head (29) is disposed at the lower part of the other end of the rotating seat (28).

7. The relay and its iron frame automatic assembly mechanism according to claim 6, characterized in that: The assembly head (29) includes a connecting post (291), a buffer spring (292), a material pick-up seat (293), a suction block (294), and a spring seat (295). The connecting post (291) is vertically inserted into the rotating seat (28) and extends to the bottom of the rotating seat (28). The material pick-up seat (293) is located at the lower part of the connecting post (291), and a vertically extending mounting hole (D) is provided in the material pick-up seat (293). The connecting post (291) is inserted into the mounting hole (D) and extends vertically. Movable; the buffer spring (292) is sleeved on the connecting column (291), the lower end of the buffer spring (292) abuts against the material pick-up seat (293), and the upper end passes through the rotating seat (28) and abuts against the spring seat (295) provided on the rotating seat (28); the side of the material pick-up seat (293) is provided with at least two mounting holes; the suction block (294) includes at least two blocks, and the at least two suction blocks (294) are respectively inserted into the at least two mounting holes for adsorbing the inner side wall of the iron frame (03) of the relay assembly (0) from the side.

8. The relay and its iron frame automatic assembly mechanism according to claim 1, characterized in that: The guiding and pressing mechanism (3) includes a pressing bracket (31), a pressing cylinder (32), a pressing lifting seat (33), and a pressing guide assembly (34). The pressing bracket (31) is mounted above the assembly platform (1). The pressing cylinder (32) is mounted on the top plate of the pressing bracket (31), and its output end extends vertically downward through the top plate. The pressing lifting seat (33) is horizontally mounted below the top plate and is movably connected to the top plate through a guide column. The pressing lifting seat (33) is connected to the pressing cylinder (32). The pressing guide assembly (34) is mounted on the top plate and extends below the pressing lifting seat (33).

9. A relay and its iron frame automatic assembly mechanism according to claim 8, characterized in that: The material pressing guide assembly (34) includes a material pressing connecting seat (341), a lifting cylinder (342), a material pressing frame (343), an opening and closing cylinder (344), an opening and closing frame (345), and a guide plate (346). The material pressing connecting seat (341) is connected to the top plate and extends horizontally outward. The lifting cylinder (342) is vertically connected below the material pressing connecting seat (341), with its output end facing downward. The material pressing frame (343) is connected to the output end of the lifting cylinder (342) and extends horizontally outward. The side of the material pressing frame (343) closest to the lifting cylinder (342) is a horizontal support surface. The opening and closing cylinder (344) is placed on the other side of the pressure frame (343), and a guide groove (E) is provided on the other side; the output end of the opening and closing cylinder (344) is set upward; the opening and closing frame (345) includes two, and the two opening and closing frames (345) are respectively connected to the output end of the opening and closing cylinder (344), and are driven by the opening and closing cylinder (344) to move closer or further away from each other above the guide groove (E); the guide plate (346) includes two pieces, and the two guide plates (346) are respectively set on the two opening and closing frames (345) and extend downward at an angle into the guide groove (E); the guide plate (346) is an elastic sheet.

10. An assembly machine comprising the relay and its iron frame automatic assembly mechanism as described in claim 1.

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