Automatic core riveting machine

Abstract

The present application discloses an automatic riveting core machine, which relates to the technical field of relay assembly. It includes a frame. The frame is provided with a conveying mechanism for conveying the coil skeleton assembled with the yoke iron. On one side of the conveying mechanism of the frame, there is a riveting mechanism for inserting the core onto the coil skeleton. On one side of the riveting mechanism, there is a riveting and pressing assembly connected to the frame for riveting the core with the yoke iron and the coil skeleton. The conveying mechanism includes a separation bracket in contact with the coil skeleton and a driving component for driving the separation bracket to move towards the riveting mechanism, preventing damage to the coil skeleton caused by the abutting coil skeletons when inserting the core; after the riveting mechanism inserts the core into the coil skeleton, the coil skeleton is transported under the riveting and pressing assembly for riveting, reducing the problems of eccentric hinge points of the core and deformation and separation between the yoke iron and the coil skeleton caused by manually inserting the core into the coil skeleton and the yoke iron for riveting.

Description

Technical Field

[0001] This application relates to the technical field of relay assembly, and in particular to an automatic core inserting and riveting machine. Background Art

[0002] A relay is an electrical control device that can give a specified input quantity and maintain it for a long enough time, causing a predetermined step change in the controlled quantity in the electrical output circuit. When the input quantity drops to a certain level and is maintained for a long enough time, it then returns to the initial state.

[0003] When assembling a relay, currently most of the work is done manually. The yoke and the coil bobbin are assembled, the core is inserted into the yoke and the coil bobbin, and then the product is placed in a riveting device for riveting, fixing the yoke and the coil bobbin through the core.

[0004] Regarding the above related technology, the inventor believes that when the core is inserted into the coil bobbin and the core manually, the hinge point of the core is prone to deviation during riveting, and the yoke and the coil bobbin are prone to deformation and separation. Summary of the Invention

[0005] The purpose of this application is to provide an automatic core inserting and riveting machine to improve the problem that when the core is inserted into the coil bobbin and the core manually, the hinge point of the core is prone to deviation during riveting, and the yoke and the coil bobbin are prone to deformation and separation.

[0006] The automatic core inserting and riveting machine provided by this application adopts the following technical solutions:

[0007] The automatic core inserting and riveting machine includes a frame. The frame is provided with a conveying mechanism for conveying the coil bobbin assembled with the yoke. On one side of the conveying mechanism of the frame, there is a riveting mechanism for inserting the core onto the coil bobbin. On one side of the riveting mechanism, there is a riveting and pressing assembly connected to the frame for riveting the core, the yoke, and the coil bobbin. The conveying mechanism includes a separating bracket in contact with the coil bobbin and a driving assembly for driving the separating bracket to move towards the riveting mechanism.

[0008] By adopting the above technical solutions, a conveying mechanism for placing the coil bobbin is provided on the frame to transport the coil bobbin clamped with the yoke towards the riveting mechanism. A separating bracket for separating the coil bobbins is provided on the conveying mechanism to prevent adjacent coil bobbins from being damaged when inserting the core; the riveting and pressing assembly is arranged on one side of the riveting mechanism. After the riveting mechanism inserts the core into the coil bobbin and the yoke, the coil bobbin is transported under the riveting and pressing assembly through the separating bracket and the driving assembly of the conveying mechanism for riveting, reducing the problems of poor eccentricity of the hinge point of the core and deformation and separation between the yoke and the coil bobbin caused by manually inserting the core into the coil bobbin and the yoke for riveting.

[0009] Optionally, a conveying rack in contact with the separating bracket is provided on the rack. A first chute for placing the coil bobbin and abutting against the separating bracket is formed in the conveying rack. The first chute is arranged along the length direction of the conveying rack. A plurality of limiting grooves for separating the coil bobbins are formed on one side of the separating bracket close to the first chute. One side of the separating bracket away from the conveying rack is connected to the driving assembly. A connecting groove communicated with the limiting grooves is arranged at one end of the conveying rack away from the riveting and assembling mechanism.

[0010] By adopting the above technical solution, the conveying rack of the conveying mechanism is connected to the rack, the separating bracket is arranged on the first chute of the conveying rack, and the limiting grooves fitting the side walls of the coil bobbins are formed on the separating bracket. Through the connecting groove arranged on the conveying rack and communicated with the limiting grooves, the coil bobbins assembled with the yoke iron are sent between the first chute of the conveying rack and the limiting grooves of the separating bracket to separate the coil bobbins and limit the coil bobbins in the first chute on the separating bracket and the conveying rack, so as to prevent the coil bobbins from falling off the first chute during the conveying of the coil bobbins, and at the same time separate the coil bobbins attached together to prevent damage to the coil bobbins when inserting the iron cores into the coil bobbins.

[0011] Optionally, the driving assembly includes a fixed bracket connected to the rack. A connecting bracket is slidably connected to the fixed bracket along the length direction of the separating bracket. The connecting bracket and the separating bracket are slidably connected in the width direction of the separating bracket. A first driving member for driving the connecting bracket and the separating bracket to move along the length direction of the separating bracket is arranged on one side of the fixed bracket.

[0012] By adopting the above technical solution, a connecting bracket slidably connected to the separating bracket is slidably arranged below the separating bracket. The first driving member arranged on the fixed bracket connected to the rack drives the connecting bracket to drive the separating bracket to reciprocate along the direction of the first chute, so as to bring the coil bobbins between the limiting grooves of the separating bracket and the first chute to the riveting and assembling mechanism to insert the iron cores into the coil bobbins, improve the processing efficiency of the coil bobbins, and at the same time enable the coil bobbins to pass through the riveting and assembling mechanism in sequence, reducing the possibility of the iron cores inserted by the riveting and assembling mechanism being misaligned with the coil bobbins.

[0013] Optionally, a second driving member is arranged above the separating bracket. The driving rod of the second driving member is connected to the connecting bracket and drives the separating bracket to move towards the direction of the first chute, so that the separating bracket is in contact with the coil bobbins. Stop rods abutting against the side walls of the connecting bracket are arranged at both ends of the fixed bracket.

[0014] By adopting the above technical solution, a second driving member is arranged on the separating bracket. The driving rod of the second driving member is fixedly connected to the extending portion of the connecting frame. Driven by the second driving member, the separating bracket reciprocates in the connecting frame in the direction of the first chute on the conveying frame. After the separating bracket drives the previous set of coil skeletons to the riveting and pressing assembly under the drive of the first driving member, it returns to its original position to continue fixing the coil skeletons. Under the action of the first driving member and the second driving member, the separating bracket continuously sends the coil skeletons to the riveting and pressing assembly and the riveting mechanism for riveting, and pushes the riveted coil skeletons away from the conveying frame to prevent the riveted coil skeletons from blocking the chute of the conveying frame.

[0015] Optionally, the riveting and pressing assembly includes a riveting and pressing component for lowering the iron core and a guiding component for driving the riveting and pressing component close to the coil skeleton. The guiding component includes a first support frame connected to the machine frame and slidably connected to the riveting and pressing component. A third driving member is arranged on one side of the riveting and pressing component close to the first support frame. The driving rod of the third driving member is connected to the first support frame to drive the riveting and pressing component to move in the direction of the first chute.

[0016] By adopting the above technical solution, a first support frame slidably connected to the riveting and pressing component is installed on the machine frame. By retracting and extending the driving rod connected to the first support frame through the third driving member arranged on the riveting and pressing component, the riveting and pressing component is driven to approach the coil skeleton placed on the first chute of the conveying frame, and the iron core is placed into the coil skeleton, preventing the iron core from being misaligned with the riveting holes on the coil skeleton when assembling the iron core into the coil skeleton, which affects the riveting of the coil skeleton and the yoke iron.

[0017] Optionally, the riveting and pressing component includes a second support frame slidably connected to the first support frame in the direction of the first chute. The second support frame is connected to the housing of the third driving member. A fixing block is arranged at one end of the second support frame close to the coil skeleton on the first chute. A fourth driving member is arranged on the side of the second support frame away from the first support frame. A connecting block connected to the driving rod of the fourth driving member is arranged at one end of the fourth driving member close to the fixing block. A pressing rod is arranged on the side of the connecting block close to the fixing block. A communication hole adapted to the pressing rod and penetrating the fixing block is opened in the fixing block.

[0018] By adopting the above technical solution, a second support frame slidably connected to the second support frame is arranged on the first support frame. Adjacent communication holes are arranged at one end of the second support member close to the conveying frame. The fixing block for lowering the iron core is installed adjacent to one end of the second support frame close to the conveying frame, so that the fixing block corresponds to the limiting groove opened on the separating bracket. A communication hole is opened in the fixing block. The pressing rod is driven by the fourth driving member to enter the communication hole in the fixing block, and the iron core in the fixing block is pressed into the hole communicating the coil skeleton and the yoke iron, fixing the coil skeleton and the yoke iron together and improving the riveting efficiency of the coil skeleton and the yoke iron.

[0019] Optionally, a fixing hole for accommodating the passage of the iron core and communicating with the connecting hole is formed on the inner side wall of the connecting hole; a connecting tube for conveying the iron core is provided on the inner side wall of the fixing hole; a rivet head is rotatably connected to one end of the fixing block close to the coil frame; the rivet head is divided into two parts and are rotatably connected to both sides of the fixing block respectively; the rivet head is provided with a positioning groove which is communicated with the connecting hole and fits with the side wall of the iron core.

[0020] By adopting the above technical scheme, a fixing hole for accommodating the passage of the iron core is opened on the inner wall of the connecting hole of the fixed block, and a connecting pipe is arranged on the inner wall of the fixing hole. The iron core is transported to the fixed block through the connecting pipe, and the rivet head is rotatably arranged on both sides of the fixed block. The end caps of the iron core are fixed by the positioning grooves opened in the rivet head to prevent the iron core from falling directly after entering the fixed block; after the coil skeleton reaches under the rivet head, the driving member four on the support frame two drives the pressing rod to move downward so that the iron core squeezes the rivet head open, and the iron core is inserted into the coil skeleton and the yoke, so that the coil skeleton and the yoke can be accurately connected and fixed to the iron core.

[0021] Optionally, a fixing groove 1 is provided on one side of the rivet head close to the fixing block, a fixing groove 2 is provided at a position of the fixing block corresponding to the fixing groove 1, and an elastic member 1 is provided between the inner side walls of the fixing groove 1 and the fixing groove 2 to push the rivet heads closer to each other.

[0022] By adopting the above technical scheme, a fixing groove 1 is opened on the side of the rivet head close to the fixed block, a fixing groove 2 corresponding to the fixing groove 1 is opened on the fixed block, and an elastic member 1 is fixed in the fixing groove 1 and the fixing groove 2. The rivet heads on both sides of the fixed block are pushed closer to each other by the elastic member 1, so as to block the iron core sliding down in the fixed block, so that the rivet heads are closed in time after the lower pressure rod presses the iron core out, so as to prevent the subsequent iron core from falling directly from the fixed block.

[0023] Optionally, the riveting assembly includes a mounting frame connected to the frame, a riveting block is slidably connected to the side of the mounting frame close to the conveying frame, a riveting rod corresponding to the limiting groove and abutting against the iron core inserted in the coil frame is provided at one end of the riveting block close to the coil frame, and the mounting frame is provided with a driving member five connected to the riveting block to push the riveting block to move toward the conveying frame.

[0024] By adopting the above technical solution, a mounting frame is arranged on the frame, and a side of the mounting frame close to the conveying frame is slidably connected to the riveting block. The riveting block is driven close to the coil frame by a driving member 5 arranged on the mounting frame. The riveting rod arranged below the riveting block abuts against the iron core on the coil frame, and the iron core is riveted to the coil frame and the yoke iron, so as to minimize the misalignment between the riveting rod and the iron core of the coil frame fixed between the separation bracket and the conveying frame, so as to make the riveting rod press against the coil frame to cause the coil frame to deform and damage.

[0025] Optionally, a buffer seat corresponding to the riveting rod and fitting the conveying frame is arranged below the separating bracket on the frame. The buffer seat abuts against the downward extending part of the riveting block. The buffer seat is provided with a second chute communicating with the first chute. The frame is provided with a fixed seat abutting against the buffer seat. A third fixing groove is opened on one side of the fixed seat close to the buffer seat. A ejector rod connected to the buffer seat is inserted into the third fixing groove. An elastic member II for jacking up the ejector rod and the buffer seat is arranged between the ejector rod and the third fixing groove.

[0026] By adopting the above technical solution, a buffer seat corresponding to the riveting rod is arranged on the frame. Through the second chute opened on the buffer seat, the coil skeleton is smoothly brought to the buffer seat by the separating bracket. When the riveting rod presses down and abuts against the iron core on the coil skeleton, the downward extending part of the riveting block presses down the buffer seat, causing the buffer seat on the fixed seat to slowly move downward and the elastic member II to contract. When the riveting rod moves upward, the elastic member II resets to jack up the buffer seat, enabling the separating bracket to push away the riveted coil skeleton, preventing the coil skeleton and the yoke iron from deforming and separating due to the downward pressure of the riveting rod, and minimizing the possibility of eccentric defects at the riveting points when the coil skeleton is riveted to the iron core.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. A second support frame slidably connected to the first support frame is arranged on the first support frame. Adjacent communication holes are arranged at one end of the second support member close to the conveying frame. The fixing block for placing the iron core is installed adjacent to one end of the second support frame close to the conveying frame, making the fixing block correspond to the limiting groove opened on the separating bracket. A communication hole is opened on the fixing block. The driving member IV drives the pressing rod into the communication hole on the fixing block, pressing the iron core in the fixing block into the hole communicating the coil skeleton and the yoke iron, fixing the coil skeleton and the yoke iron together, and improving the riveting efficiency of the coil skeleton and the yoke iron.

[0029] 2. A fixing hole for the iron core to pass through is opened on the inner side wall of the communication hole of the fixing block. A connecting pipe is arranged on the inner side wall of the fixing hole. The connecting pipe is connected to the iron core conveying pipe. The iron core is conveyed into the fixing block through the conveying pipe. The riveting heads are rotatably arranged on both sides of the fixing block. The end caps of the iron core are fixed through the positioning grooves opened in the riveting heads, preventing the iron core from directly falling after entering the fixing block. The elastic member I pushes the riveting heads on both sides of the fixing block to approach each other, blocking the iron core sliding down in the fixing block, enabling the riveting heads to close in time after the pressing rod presses out the iron core, and preventing the subsequent entering iron core from directly falling out of the fixing block.

[0030] 3. Drive the riveting block close to the coil bobbin through the driving member five provided on the mounting frame. The riveting rod provided below the riveting block abuts against the iron core on the coil bobbin, and rivet the iron core to the coil bobbin and the yoke iron, and try to minimize the offset of the iron core of the coil bobbin fixed between the riveting rod and the separation bracket and the conveying frame, so as to reduce the possibility of the riveting rod pressing against the coil bobbin and damaging the coil bobbin; when the riveting rod presses down and abuts against the iron core on the coil bobbin, the downward extending part of the riveting block presses down the buffer seat, so that the buffer seat on the fixed seat moves down slowly, and the second elastic member contracts. When the riveting rod moves up, the second elastic member resets and pushes up the buffer seat, so that the separation bracket pushes away the riveted coil bobbin, preventing the riveting rod from pressing down and deforming and separating the coil bobbin and the yoke iron, and minimizing the possibility of poor eccentricity of the hinge point when the coil bobbin and the iron core are riveted. Description of the Drawings

[0031] Figure 1 is the overall schematic diagram of the automatic iron core riveting machine;

[0032] Figure 2 is the partial cross-sectional view of the riveting mechanism of the automatic iron core riveting machine;

[0033] Figure 3 is Figure 2 the partial enlarged view of part A in

[0034] Figure 4 is the partial cross-sectional view of the riveting assembly of the automatic iron core riveting machine.

[0035] In the figure, 1. Frame; 11. Conveying frame; 111. First chute; 112. Connecting groove; 2. Conveying mechanism; 21. Separation bracket; 211. Limit groove; 22. Driving assembly; 221. Fixed frame; 222. Connecting frame; 223. First driving member; 224. Second driving member; 225. Stop bar; 3. Coil bobbin; 4. Yoke iron; 5. Riveting mechanism; 51. Riveting assembly; 511. Second support frame; 512. Fixed block; 513. Fourth driving member; 514. Connecting block; 515. Pressing rod; 516. Communication hole; 517. Fixed hole; 518. Connecting pipe; 519. Second fixed groove; 52. Guiding assembly; 521. First support frame; 522. Third driving member; 53. Riveting head; 531. Positioning groove; 532. First fixed groove; 533. First elastic member; 6. Iron core; 7. Riveting assembly; 71. Mounting frame; 72. Riveting block; 73. Riveting rod; 74. Fifth driving member; 75. Buffer seat; 751. Second chute; 752. Thrust rod; 76. Fixed seat; 761. Third fixed groove; 77. Second elastic member. Detailed Embodiment

[0036] The following Figure 1 - attached Figure 4 , and make a further detailed description of the present application.

[0037] Automatic riveting core machine, referring to Figure 1 , including a frame 1, fixing a conveying frame 11 on the frame 1 with bolts. A first chute 111 is opened along the length direction of the conveying frame 11 on the conveying frame 11, and a connecting groove 112 is opened at one end of the conveying frame 11. The coil skeleton 3 assembled with the yoke iron 4 is sent to the first chute 111 of the conveying frame 11 through a conveyor belt from the connecting groove 112. A fixing frame 221 in the driving assembly 22 is fixed on the side of the frame 1 far from the conveying frame 11 with bolts. A first driving member 223 is fixed on the fixing frame 221 with bolts. The first driving member 223 is a driving cylinder. The driving rod of the driving cylinder is fixed with a connecting frame 222 through bolts. The connecting frame 222 and the fixing frame 221 are slidably connected through a slider and a guide rail. The connecting frame 222 is pushed to slide on the frame 1 by the first driving member 223.

[0038] Referring to Figure 1 and Figure 2 , a separating bracket 21 is slidably connected to the side of the connecting frame 222 far from the frame 1 through a guide rail and a slider, so that the separating bracket 21 abuts against the first chute 111 on the conveying frame 11. The driving assembly 22 composed of the separating bracket 21, the fixing frame 221, the connecting frame 222, and the first driving member 223 constitutes a conveying mechanism 2. A limiting groove 211 that fits the side wall of the coil skeleton 3 is opened on the separating bracket 21. A second driving member 224 is fixed on the separating bracket 21 with bolts. The second driving member 224 is a driving cylinder whose driving rod is fixedly connected to the extending part of the connecting frame 222 through a thread. The separating bracket 21 is moved towards the first chute 111 by retracting and extending the driving rod of the second driving member 224; Stop rods 225 are installed on the fixing frames 221 at both ends of the separating bracket 21, so that the stop rods 225 abut against the side wall of the connecting frame 222 below the separating bracket 21 during movement, preventing the connecting frame 222 from driving the separating bracket 21 to misalign the coil skeleton 3 and the riveting mechanism 5, which affects the insertion of the iron core 6 into the coil skeleton 3.

[0039] Referring to Figure 2 and Figure 3, on one side of the rack 1 located at the conveying rack 11, the support frame one 521 of the guiding component 52 is fixedly connected by bolts. On the side of the support frame one 521 close to the conveying rack 11, it is slidably connected with the support frame two 511 through a guide rail and a slider. On the support frame two 511, the driving component three 522 is fixedly connected by bolts. The driving component three 522 is a driving cylinder, and the driving rod of the driving cylinder is connected with the support frame one 521 by bolts. The support frame two 511 is pushed to move on the support frame one 521 by retracting and extending the driving rod of the driving component three 522; at one end of the support frame two 511 close to the conveying rack 11, the fixing block 512 of the riveting component 51 is fixedly connected by bolts. On the support frame two 511, the driving component four 513 is fixedly connected by bolts. The driving component four 513 is a double-headed driving cylinder. A connecting block 514 is clamped below the driving rod of the driving component four 513. A pressing rod 515 is fixed below the connecting block 514. A communication hole 516 for accommodating the movement of the iron core 6 and the pressing rod 515 is opened in the fixing block 512.

[0040] Refer to Figure 2 and Figure 3 , on both sides of the fixing block 512, it is rotatably connected with the riveting head 53 through a rotating shaft. The riveting heads 53 are located below the communication hole 516 opened in the fixing block 512 and are close to and fit with each other. On the side of the riveting heads 53 close to each other, a positioning groove 531 corresponding to the communication hole 516 is opened. After the riveting heads 53 are buckled, the positioning grooves 531 are spliced with each other and fit with the side wall of the iron core 6. The iron core 6 is blocked by the closed riveting heads 53 to prevent the iron core 6 from falling directly; on the inner side wall of the communication hole 516 of the fixing block 512, a fixing hole 517 for accommodating the iron core 6 is opened. A connecting pipe 518 is inserted into the fixing hole 517. The connecting pipe 518 is connected with the conveying pipe for conveying the iron core 6 through a rubber hose. The iron core 6 is conveyed into the communication hole 516 of the fixing block 512 through an air pump and a rubber hose; on the side of the riveting head 53 close to the fixing block 512, a fixing groove one 532 is opened. A fixing groove two 519 corresponding to the fixing groove one 532 is clamped on the fixing block 512. The elastic component one 533 is fixed between the fixing groove one 532 and the fixing groove two 519 and is fixedly connected with the riveting head 53 and the fixing block 512. The elastic component is a spring, which pushes the riveting heads 53 on both sides of the fixing block 512 to approach each other and block the iron core 6 in the fixing block 512.

[0041] Refer to Figure 1 and Figure 4, a mounting bracket 71 is bolted to the frame 1. On the side of the mounting bracket 71 close to the conveying bracket 11, it is bolted to the fifth driving member 74. The fifth driving member 74 is a hydraulic cylinder. The driving rod of the fifth driving member 74 is threadedly connected to the riveting block 72. The riveting block 72 is slidably connected to the side of the mounting bracket 71 close to the conveying bracket 11 through a guide rail and a slider. The riveting block 72 is driven by the fifth driving member 74 to move downward; at one end of the iron core 6 inserted into the coil bobbin 3 on the conveying bracket 11 close to the riveting block 72, it is bolted and fixed to the riveting rod 73. A fixed seat 76 is bolted below the riveting rod 73 and below the separating bracket 21 on the frame 1. A buffer seat 75 is arranged on the fixed seat 76. A second chute 751 communicating with the first chute 111 on the conveying bracket 11 is opened on the side of the buffer seat 75 close to the riveting rod 73; a push rod 752 is welded on the side of the buffer seat 75 close to the fixed seat 76. A third fixed groove 761 adapted to the push rod 752 is opened on the fixed seat 76. An elastic member II 77 is fixed between the push rod 752 and the third fixed groove 761. The elastic member II 77 is a spring. When the fifth driving member 74 drives the riveting block 72 to press down, the riveting rod 73 abuts against the iron core 6 inserted into the coil bobbin 3 fixed between the buffer seat 75 and the separating bracket 21. As the fifth driving member 74 presses down, the extended part of the riveting block 72 pushes the buffer seat 75 to move downward slowly, so that the riveting rod 73 presses the iron core 6 into the coil bobbin 3 to complete the riveting of the coil bobbin 3 and the yoke iron 4.

[0042] The implementation principle of the embodiment of this application is as follows:

[0043] After the coil bobbin 3 and the yoke iron 4 are assembled, the coil bobbin 3 is sent to the first chute 111 on the conveying bracket 11 through a conveyor belt. The first driving member 223 drives the connecting frame 222 to drive the separating bracket 21 to move towards the position on the conveying bracket 11 where the coil bobbin 3 is placed. Subsequently, the second driving member 224 on the connecting frame 222 drives the separating bracket 21 to move towards the conveying bracket 11, and the coil bobbin 3 is fixed between the limiting groove 211 opened on the separating bracket 21 and the first chute 111 of the conveying bracket 11; subsequently, the second driving member 224 drives the separating bracket 21 to move away from the conveying bracket 11, and then fixes the new coil bobbin 3 and the coil bobbin 3 of the previous round. The first driving member 223 drives the connecting frame 222 to drive the separating bracket 21 to move towards the riveting head 53 of the riveting mechanism 5. After the separating bracket 21 sends the coil bobbin 3 below the riveting head 53, the third driving member 522 contracts the driving rod to drive the second support frame 511 connected to the third driving member 522 to move downward on the first support frame 521, so that the exposed part of the iron core 6 on the riveting head 53 corresponds to the holes communicating with the coil bobbin 3 and the yoke iron 4. Subsequently, the fourth driving member 513 on the second support frame 511 drives the connecting block 514 to push the pressing rod 515 to move downward to abut against the iron core 6. The iron core 6 is pressed by the pressing rod 515 to open the riveting head 53, and the iron core 6 is pressed into the coil bobbin 3 and the yoke iron 4;

[0044] Subsequently, the driving member four 513 drives the connecting block 514 and the downward pressing rod 515 to move upward. The riveting head 53 closes under the action of the elastic member. The new iron core 6 enters the fixed block 512 through the connecting pipe 518 and falls into the positioning groove 531 of the riveting head 53. The coil bobbin 3 with the iron core 6 installed is sent to the riveting assembly 7 by the movement of the separating bracket 21. The separating bracket 21 will fix the new coil bobbin 3 again, and at the same time fix the previous coil bobbin 3. The driving member five 74 on the riveting assembly 7 drives the riveting block 72 to move downward, so that the riveting rod 73 fixed on the riveting block 72 moves downward to abut against the iron core 6 inserted on the coil bobbin 3. The extension part of the riveting block 72 presses down the buffer seat 75, so that the riveting rod 73 slowly presses the iron core 6 into the coil bobbin 3. The coil bobbin 3 and the yoke iron 4 are riveted through the iron core 6 by the downward pressing of the riveting rod 73. Subsequently, the limiting groove 211 at the end of the separating bracket 21 close to the riveting assembly 7 sends the riveted product to the conveyor belt and transports it to the subsequent production line for processing. This reduces the problems of poor eccentricity of the hinge point of the iron core 6 caused by manually inserting the iron core 6 into the coil bobbin 3 and the yoke iron 4 for riveting, and the deformation and separation between the yoke iron 4 and the coil bobbin 3.

[0045] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. Automatic riveting core machine, characterized in that: It includes a frame (1), on which a conveying mechanism (2) for conveying a coil bobbin (3) assembled with a yoke (4) is provided. On one side of the conveying mechanism (2) of the frame (1), a riveting mechanism (5) for inserting an iron core (6) onto the coil bobbin (3) is provided. On one side of the riveting mechanism (5), a riveting and pressing assembly (7) connected to the frame (1) and used for riveting the iron core (6), the yoke (4) and the coil bobbin (3) is provided. The conveying mechanism (2) includes a separating bracket (21) in contact with the coil bobbin (3) and a driving assembly (22) for driving the separating bracket (21) to move towards the riveting mechanism (5). The frame (1) is provided with a conveying rack (11) in contact with the separating bracket (21). The conveying rack (11) is provided with a first chute (111) for placing the coil bobbin (3) and abutting against the separating bracket (21). The first chute (111) is arranged along the length direction of the conveying rack (11). On one side of the separating bracket (21) close to the first chute (111), a plurality of limiting grooves (211) for separating the coil bobbin (3) are provided. The side of the separating bracket (21) away from the conveying rack (11) is connected to the driving assembly (22). At one end of the conveying rack (11) away from the riveting mechanism (5), a connecting groove (112) communicating with the limiting grooves (211) is provided. The riveting mechanism (5) includes a riveting assembly (51) for lowering the iron core (6) and a guiding assembly (52) for driving the riveting assembly (51) to approach the coil bobbin (3). The guiding assembly (52) includes a first support frame (521) connected to the frame (1) and slidably connected to the riveting assembly (51). On one side of the riveting assembly (51) close to the first support frame (521), a third driving member (522) is provided. The driving rod of the third driving member (522) is connected to the first support frame (521) to drive the riveting assembly (51) to move towards the first chute (111). The riveting assembly (51) includes a second support frame (511) slidably connected to the first support frame (521) in the direction of the first chute (111). The second support frame (511) is connected to the housing of the third driving member (522). At one end of the second support frame (511) close to the coil bobbin (3) on the first chute (111), a fixing block (512) is provided. On the side of the second support frame (511) away from the first support frame (521), a fourth driving member (513) is provided. At one end of the fourth driving member (513) close to the fixing block (512), a connecting block (514) connected to the driving rod of the fourth driving member (513) is provided. On the side of the connecting block (514) close to the fixing block (512), a pressing rod (515) is provided. The fixing block (512) is provided with a communication hole (516) adapted to the pressing rod (515) and penetrating through the fixing block (512). On the inner side wall of the communication hole (516), a fixing hole (517) is provided for the core (6) to pass through and communicate with the communication hole (516). On the inner side wall of the fixing hole (517), a connecting pipe (518) for conveying the core (6) is provided on the fixing block (512). One end of the fixing block (512) close to the coil bobbin (3) is rotatably connected to a riveting head (53). The riveting head (53) is divided into two parts and rotatably connected to both sides of the fixing block (512). The riveting head (53) is provided with a positioning groove (531) that communicates with the communication hole (516) and fits against the side wall of the core (6).

2. The automatic riveting iron core machine according to claim 1, characterized in that: The driving assembly (22) includes a fixing frame (221) connected to the frame (1). The fixing frame (221) is slidably connected with a connecting frame (222) along the length direction of the separating bracket (21). The connecting frame (222) and the separating bracket (21) are slidably connected in the width direction of the separating bracket (21). On one side of the fixing frame (221), a first driving member (223) is provided for driving the connecting frame (222) and the separating bracket (21) to move along the length direction of the separating bracket (21).

3. The automatic riveting iron core machine according to claim 2, wherein: Above the separating bracket (21), a second driving member (224) is provided. The driving rod of the second driving member (224) is connected to the connecting frame (222) and drives the separating bracket (21) to move towards the first chute (111), so that the separating bracket (21) contacts the coil bobbin (3). At both ends of the fixing frame (221), stop rods (225) that abut against the side wall of the connecting frame (222) are provided.

4. The automatic riveting iron core machine according to claim 1, characterized in that: On one side of the riveting head (53) close to the fixing block (512), a first fixing groove (532) is provided. At a position corresponding to the first fixing groove (532) on the fixing block (512), a second fixing groove (519) is provided. Between the inner side walls of the first fixing groove (532) and the second fixing groove (519), a first elastic member (533) for pushing the riveting heads (53) towards each other is provided.

5. The automatic riveting core machine according to claim 4, characterized in that: The riveting and pressing assembly (7) includes a mounting frame (71) connected to the frame (1). On one side of the mounting frame (71) close to the conveying frame (11), a riveting and pressing block (72) is slidably connected. At one end of the riveting and pressing block (72) close to the coil bobbin (3), a riveting and pressing rod (73) corresponding to the limiting groove (211) and abutting against the core (6) inserted in the coil bobbin (3) is provided. The mounting frame (71) is provided with a fifth driving member (74) connected to the riveting and pressing block (72) to push the riveting and pressing block (72) to move towards the conveying frame (11).

6. The automatic riveting core machine according to claim 5, wherein: The frame (1) is provided with a buffer seat (75) corresponding to the riveting rod (73) and fitting against the conveying frame (11) below the separation bracket (21). The buffer seat (75) abuts against the downward extending part of the riveting block (72). The buffer seat (75) is provided with a second chute (751) communicating with the first chute (111). The frame (1) is provided with a fixed seat (76) abutting against the buffer seat (75). A third fixing groove (761) is formed on the side of the fixed seat (76) close to the buffer seat (75). A ejector rod (752) connected to the buffer seat (75) is inserted into the third fixing groove (761). An elastic member two (77) for jacking up the ejector rod (752) and the buffer seat (75) is arranged between the ejector rod (752) and the third fixing groove (761).

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