A feeding device for electromagnetic coil riveting assembly equipment

Abstract

The application relates to the field of electromagnetic coil manufacturing, in particular to a feeding device for electromagnetic coil riveting assembly equipment, which comprises a material plate for placing a plurality of rows of coil skeletons, a skeleton clamping part for clamping and moving the coil skeletons on the material plate, a skeleton conveying belt for receiving the coil skeletons clamped by the skeleton clamping part and conveying the coil skeletons, and a material plate conveying belt for placing and conveying the material plate, the material plate conveying belt is provided with fixed position detection rods, the detection rods are provided with a plurality of skeleton sensing elements for sensing whether the coil skeletons on the material plate are clamped and moved by the skeleton clamping part, each skeleton sensing element corresponds to a row of coil skeletons on the material plate, so that after all the coil skeletons on one material plate are moved, the material plate conveying belt moves, and after the coil skeletons in one material plate are moved, the next material plate can be moved to a corresponding position in time for clamping and moving by the skeleton clamping part for feeding, and the whole feeding process is more convenient.

Description

Technical Field

[0001] This application relates to the field of electromagnetic coil manufacturing, and in particular to a feeding device for electromagnetic coil riveting assembly equipment. Background Technology

[0002] An electromagnetic coil is required inside the relay to attract the armature, so that the moving reed contacts the stationary reed, thereby connecting the corresponding circuit and achieving the switching control effect of the circuit. The electromagnetic coil generally consists of a bobbin with the coil wound around it, an iron core inserted into the bobbin, and yokes located at both ends of the bobbin and riveted to the iron core. In order to achieve high-efficiency assembly of the electromagnetic coil, automated riveting equipment is used for assembly.

[0003] For example, in the existing production line for assembling an electromagnetic coil frame, yoke, and core (announcement number CN202487396U), a robotic arm sequentially clamps each row of coil frames on a material plate and places them onto the corresponding feeding conveyor belt. The core and yoke plates are fed by corresponding vibratory feeders. Then, corresponding pneumatic fingers clamp the frames and sequentially insert the core, assemble and rivet the yoke plates. Finally, the assembled electromagnetic coil is pushed onto the conveyor belt for unloading and neatly placed on the material plate.

[0004] Regarding the aforementioned technologies, when the coil bobbins on the material plate are about to run out, it is necessary to pay close attention so that after the last row of bobbins is clamped and removed, the empty material plate can be removed in time and a new material plate can be placed on it. The entire material loading process is quite inconvenient. Summary of the Invention

[0005] To facilitate timely replacement of the material plate when the coil frame in the material plate is exhausted, this application provides a feeding device for an electromagnetic coil riveting assembly equipment.

[0006] The technical solution provided in this application for a feeding device for an electromagnetic coil riveting assembly equipment is as follows.

[0007] A feeding device for an electromagnetic coil riveting assembly equipment includes a material plate for placing coil skeletons in several rows, a skeleton clamp for clamping and moving the coil skeletons on the material plate, and a skeleton conveyor belt for receiving and conveying the coil skeletons clamped by the skeleton clamp. It also includes a material plate conveyor belt for placing and conveying the material plates. A detection rod with a fixed position is provided on the side of the material plate conveyor belt. The detection rod is equipped with several skeleton sensors to detect whether the coil skeletons on the material plate have been clamped and moved by the skeleton clamp. Each skeleton sensor corresponds to a row of coil skeletons on the material plate, so that the material plate conveyor belt moves after all the coil skeletons on a material plate have been removed.

[0008] By adopting the above technical solution, when each skeleton sensor can no longer detect the corresponding coil skeleton, all the coil skeletons on the corresponding material plate have been removed. At this time, the external controller controls the material plate conveyor belt to move the new material plate forward until each skeleton sensor corresponds to a new row of coil skeletons. The operator does not need to pay attention to the remaining coil skeletons on the material plate at all times, which is more convenient.

[0009] Optionally, the material conveyor belt has fixed uprights on both sides, and the uprights are slidably connected to lifting sliders that move the material plate to the same height as the surface of the conveyor coil skeleton of the skeleton conveyor belt. The uprights are equipped with slider motors that move the lifting sliders.

[0010] By adopting the above technical solution, it is possible to lift the corresponding material plate to the same height as the skeleton conveyor belt without adjusting the original equipment or replacing some of the mechanisms, so as to better adapt to the original equipment.

[0011] Optionally, one lifting slider is provided at each of the four corners of the material plate. Each of the four corners of the material plate has a corner opening formed for the lifting slider to enter and drive the material plate to move. The two corner openings on the side of the material plate conveyor belt with the upright are in the same group. A passage is formed on the side of the material plate with a group of corner openings, connecting the two corner openings in the same group. The lifting slider passes through the passage during the movement of the material plate conveyor belt. The maximum distance between the corner opening and the material plate conveyor belt is greater than the maximum distance between the passage and the material plate conveyor belt.

[0012] By adopting the above technical solution, the lifting slider raises the corner openings at the four corners of the material plate, making it less likely for the corresponding uprights to affect the detection of the frame sensor. Furthermore, the opening of the passageway makes it less likely for the lifting slider to obstruct the movement of the material plate during the transmission of the material plate conveyor belt. In addition, since the top surface of the corner opening is higher than the top surface of the passageway, the material plate can maintain better stability during the upward movement driven by the lifting slider, and the material plate is less likely to move arbitrarily in the horizontal direction.

[0013] Optionally, each of the uprights is rotatably connected to a slider screw threaded to the lifting slider, each slider screw is coaxially fixedly connected to a screw pulley, the output shaft of the slider motor is coaxially fixedly connected to a motor pulley, and a synchronous belt is used for transmission between the motor pulley and the screw pulley.

[0014] By adopting the above technical solution, all lifting sliders can move synchronously to stably lift the material plate so that the subsequent coil frame can be stably clamped and fed.

[0015] Optionally, the material conveyor belt is provided with a material plate sensor in front of the detection rod in the direction of its own transmission to detect whether there is a material plate on the material plate conveyor belt. The material plate sensor and the skeleton sensor correspond one-to-one with two material plates.

[0016] By adopting the above technical solution, when the material plate sensor cannot detect the material plate, it indicates that there are no spare material plates on the material plate conveyor belt and timely replenishment is required.

[0017] Optionally, the material conveyor belt delivers the material to an end frame with a fixed position at one end of the frame clamp. The end frame is equipped with a vertical transmission belt capable of transmission. The vertical transmission belt is fixedly connected to a transmission part for placing stacked material plates and detecting the weight of the material plates. The end frame is equipped with a pusher cylinder. The power rod of the pusher cylinder is fixedly connected to a pusher plate that can push the material plate furthest from the transmission part to the conveying surface of the material conveyor belt. At one end of the material conveyor belt near the end frame, there is a push sensor for detecting whether there is a material plate on the material conveyor belt.

[0018] By adopting the above technical solution, the material plates are stacked vertically. When the material plate conveyor belt is conveying, the corresponding material plate is no longer aligned with the push sensor. At this time, the external controller controls the pusher cylinder to operate, so that the pusher pushes a new material plate onto the material plate conveyor belt, so that the stacked material plates are continuously replenished onto the material plate conveyor belt. When a material plate is pushed onto the material plate conveyor belt, the weight detected by the transmission unit decreases, and the external controller controls the vertical transmission belt to drive, so that the height of the transmission unit rises, so that the tallest material plate in the stack is aligned with the material plate conveyor belt, so that the material plates can be replenished in time next time. At the same time, when the number of stacked material plates is insufficient and a new material plate is stacked, the vertical transmission belt can also adjust its height according to the weight detected by the transmission unit.

[0019] Optionally, the transmission unit includes a belt block fixedly connected to the vertical transmission belt, a pressure sensor and a distance sensor disposed on the belt block, a rotating plate motor disposed on the pressure sensor, a rotating plate disposed on the rotating shaft of the rotating plate motor and for placing stacked material plates, and an identification camera mounted on the end side facing the rotating plate and closest to the material plate conveyor belt.

[0020] By adopting the above technical solution, since the material plates on the material plate conveyor belt have orientation requirements, and the orientation of randomly stacked material plates may be different, it is necessary to identify the highest material plate by taking a picture. When the image is different from the standard image in the external memory, the turntable rotates until the highest material plate is in a standard state, so that the coil frame is less prone to errors when clamping and feeding the coil frame later.

[0021] Optionally, the lower surface of the material plate is provided with a bottom groove for the coil skeleton on the lower material plate to enter. The upper surface of the material plate and the rotating plate are fixedly connected with positioning frames that are tightly inserted into the bottom groove. The end side is provided with a lifting mechanism that drives the material plate with the highest height on the rotating plate to lift so that the lifted material plate can be smoothly pushed by the push plate.

[0022] By adopting the above technical solution, the material plates can be accurately stacked along the vertical center line.

[0023] Optionally, the lifting mechanism includes two wheel plates rotatably connected to the end side frame, and a wheel plate motor located on the end side frame and driving the wheel plates to rotate. The wheel plates can contact the side of the material plate with the highest height on the rotating plate.

[0024] By adopting the above technical solution, the highest material plate after the direction adjustment can be lifted by the two wheel plates, and the highest material plate can be pushed onto the material plate conveyor belt by the push plate.

[0025] Optionally, the end frame is fixedly connected to a receiving plate that is flush with the conveying surface of the material plate conveyor belt, and the receiving plate feed plate moves smoothly from the wheel plate to the material plate conveyor belt.

[0026] By adopting the above technical solution, the material plate can be pushed onto the material plate conveyor belt more stably.

[0027] In summary, this application includes at least one of the following beneficial effects: 1. It is more convenient as it eliminates the need for operators to constantly monitor the remaining coil frames on the material board; 2. This application can also be set at the unloading point after the electromagnetic coil is assembled. Only the reverse of the operation sequence is needed to place the finished electromagnetic coil in the corresponding material plate and stack it. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the material conveyor belt with one side of the end frame removed, located near one end of the end frame. Figure 3 This is a structural schematic diagram of a material plate viewed from below. Figure 4 This is a schematic diagram of the structure where the uprights are set on the material conveyor belt, with the frame clamp and the frame conveyor belt removed.

[0029] Explanation of reference numerals in the attached drawings: 1. Material plate; 2. Frame clamp; 21. Connecting plate; 22. Distance sensor; 23. Pressure sensor; 3. Frame conveyor belt; 31. Belt block; 32. Rotating plate motor; 33. Rotating plate; 34. Recognition camera; 35. Plate bottom groove; 36. Positioning frame; 37. Lifting plate mechanism; 38. Wheel plate; 39. Wheel plate motor; 4. Material plate conveyor belt; 41. Synchronous belt; 43. Material plate sensor; 44. End side frame; 45. Vertical movement transmission belt; 46. Transmission unit; 47. Push plate cylinder; 48. Push plate; 49. Push sensor; 5. Detection rod; 51. Frame sensor; 52. Upright pole; 53. Lifting slider; 54. Slider motor; 55. Corner opening; 56. Passageway; 57. Slider lead screw; 58. Lead screw pulley; 59. Motor pulley. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a feeding device for an electromagnetic coil riveting assembly equipment, referring to... Figure 1 The system includes an end-side frame 44 placed on the ground, a transmission unit 46 installed in the end-side frame 44, and material plates 1 stacked vertically on the transmission unit 46. Several rows of coil bobbins are placed on the upper surface of each material plate 1. A material plate conveyor belt 4 for horizontal transport is placed on the ground on one side of the end-side frame 44. The stacked material plates 1 are sequentially moved onto the material plate conveyor belt 4 for transport. A bobbin conveyor belt 3 is placed on the ground at the end of the material plate conveyor belt 4 away from the end-side frame 44. The transport direction of the bobbin conveyor belt 3 is perpendicular to the transport direction of the material plate conveyor belt 4, and the transport surface of the bobbin conveyor belt 3 is higher than that of the material plate conveyor belt 4. A bobbin clamp 2 is installed on the side of the bobbin conveyor belt 3. The bobbin clamp 2 can be composed of several cylinders and a cylinder finger in cooperation, and its structure has been described in detail in the prior art. Therefore, this embodiment will not provide a specific description or demonstration. The bobbin clamp 2 can clamp one row of coil bobbins onto the bobbin conveyor belt 3 at a time. Both the bobbin conveyor belt 3 and the material plate conveyor belt 4 are driven by steel rollers and stepper motors (not shown in the figure).

[0032] Reference Figure 2The end frame 44 is connected to vertically moving transmission belts 45 on both sides. These belts 45 can be driven by steel rollers and stepper motors (not shown in the figure), or they can be replaced by chains. The transmission unit 46 includes horizontally mounted belt blocks 31 fixedly connected to the adjacent vertical sides of the two belts 45. A pressure sensor 23 is fixedly connected to the upper surface of the belt block 31, and a distance sensor 22 is fixedly connected to its lower surface. A vertically mounted rotary motor 32 is fixedly connected to the upper surface of the pressure sensor 23. A horizontally mounted rotary plate 33 is fixedly connected to the output shaft of the rotary motor 32. The vertical center line of the rotary plate 33 is the same as the axis of the output shaft of the rotary motor 32. The material plate 1 is placed on the rotary plate 33. Simultaneously, the end frame 44 is detachably connected to an identification camera 34 facing the upper surface of the tallest material plate 1 among the stacked material plates 1.

[0033] Pressure sensor 23 is used to detect the weight of the material plate 1 placed on the rotating plate 33. When the material plate 1 moves onto the material plate conveyor belt 4 or a new material plate 1 is placed on the stacked material plates 1, the external controller calculates the change in weight value based on the signal input from pressure sensor 23. The external memory stores a table of the height values ​​of the rotating plate 33 corresponding to the stacked material plates 1 with different weight values. This allows the external controller to obtain the height value that the rotating plate 33 should be at based on the real-time weight value of the material plate 1 and the table of the height values ​​of the rotating plate 33 corresponding to the weight of the material plate 1 in the external memory. The external controller can also calculate the distance value between the rotating plate 33 and the ground, i.e., the height value of the rotating plate 33, based on the signal input from distance sensor 22. This allows the external controller to control the material plate conveyor belt 4 to perform corresponding transmission to adjust the rotating plate 33 to a suitable height, so that the height of the material plate 1 with the highest stack is maintained at a constant value.

[0034] Since the coil frame has two terminals and the orientation of the terminals is required (i.e., the terminals of the coil frame on the material board conveyor belt 4 must face the end frame 44), the material board 1 on the material board conveyor belt 4 needs to be in a predetermined orientation. However, the stacked material boards 1 are in different states. Therefore, the recognition camera 34 needs to take a picture of the upper surface of the material board 1 with the highest stack height. This allows the external controller to compare the image of the material board 1 taken by the recognition camera 34 with the standard image of the material board 1 stored in the external memory. When they are inconsistent, the external controller controls the rotating plate motor 32 to rotate 90°, and then the recognition camera 34 takes another picture and repeats the above comparison and recognition process until the orientation of the material board 1 is correct.

[0035] Reference Figure 3The bottom surface of the material plate 1 has a bottom groove 35 and the upper surface is fixedly connected to a positioning frame 36. The upper surface of the rotating plate 33 is also fixedly connected to a positioning frame 36. The coil skeleton placed on the material plate 1 is located in the positioning frame 36 of the material plate 1. The bottom groove 35 of one material plate 1 can allow the positioning frame 36 of another material plate 1 or rotating plate 33 to be inserted vertically, so that the material plates 1 are not prone to positional deviation in numerical direction when stacked, and it is also not easy to squeeze the coil skeleton placed on the material plate 1. Furthermore, the upper height of the coil skeleton placed in the material plate 1 is higher than the upper surface height of the corresponding positioning frame 36, so as to detect whether there is a coil skeleton in the material plate 1 later.

[0036] Reference Figure 2 The end frame 44 is equipped with a lifting mechanism 37 that lifts the highest material plate 1 on the rotating plate 33. The lifting mechanism 37 includes two wheel plates 38 rotatably connected to the side of the end frame 44 where the vertical transmission belt 45 is located. Each wheel plate 38 has a rotation point corresponding to one of the two vertical transmission belts 45. The rotation point of the wheel plate 38 is its own center point. The end frame 44 is detachably connected to a wheel plate motor 39 with a rotating shaft coaxially fixed at the rotation point of the wheel plate 38. The wheel plate 38 is located directly above the vertical transmission belt 45. Passageways 56 are opened on the opposite bottom surfaces of the material plate 1 near the wheel plates 38. The passageways 56 penetrate the opposite vertical sides of the material plate 1 where the passageways 56 are not opened at both ends in the length direction, and the passageways 56 penetrate the bottom surface of the material plate 1. A push plate cylinder 47 is detachably connected to the upper part of the end frame 44. The power rod of the push plate cylinder 47 is fixedly connected to the vertical push plate 48.

[0037] Reference Figure 2 During the rotation of the wheel plate 38 from vertical to horizontal, the side of the wheel plate 38 away from its rotation point will contact the horizontal top surface of the passageway 56, allowing the stacked highest material plate 1 to be lifted to a certain height. This ensures that the bottom surface of the material plate 1 on the horizontal wheel plate 38 is flush with the upper transmission surface of the material plate conveyor belt 4. Even if the height of the stacked material plates 1 increases by one material plate 1, the bottom groove 35 of the material plate 1 on the wheel plate 38 is no longer restricted by the insertion of the positioning frame 36 of the material plate 1 below. Then, the push plate 48 moves along the length of the material plate conveyor belt 4 to push the material plate 1 on the wheel plate 38 toward the material plate conveyor belt 4. Simultaneously, the end frame 44 is fixedly connected to a receiving plate 21 flush with the upper surface of the material plate conveyor belt 4, allowing the pushed material plate 1 to move smoothly onto the material plate conveyor belt 4 via the receiving plate 21. After the push plate 48 returns to its original position, the wheel plate 38 rotates from horizontal to vertical to lift the next material plate 1.

[0038] Reference Figure 2A push sensor 49 is detachably connected to the vertical side of the frame along the length of the material plate conveyor belt 4 near the end side frame 44. The push sensor 49 can be a reflective photoelectric sensor or a through-beam photoelectric sensor, depending on the different light absorption and reflection characteristics of the material plate 1. When the material plate conveyor belt 4 just begins to move so that the side of the corresponding material plate 1 near the end side frame 44 is no longer directly opposite the push sensor 49, the push sensor 49 outputs a signal to the external controller, which then controls the push plate cylinder 47 to operate. This allows the material plate 1 located on the wheel plate 38 to be pushed onto the material plate conveyor belt 4 while the material plate conveyor belt 4 is being driven, thus enabling the material plate 1 to move onto the material plate conveyor belt 4 more effectively.

[0039] Reference Figure 4 A detection rod 5 is fixedly connected to the vertical outer wall of the material plate conveyor belt 4 on the side of the frame length direction opposite to the skeleton clamp 2. Several skeleton sensors 51 are detachably connected to the upper end of the detection rod 5 along the length direction of the material plate conveyor belt 4. The skeleton sensors 51 can be photoelectric sensors that are consistent with the push sensors 49. Each skeleton sensor 51 corresponds to a row of coil skeletons on a material plate 1. When all the coil skeletons on a material plate 1 are removed by the skeleton clamp 2, the external controller receives a consistent signal from all the skeleton sensors 51 and calculates that each skeleton sensor 51 is not facing the coil skeleton at this time. At this time, the external controller will control the material plate conveyor belt 4 to move forward a predetermined distance so that each skeleton sensor 51 is facing a new row of coil skeletons.

[0040] Reference Figure 3 and Figure 4 A set of vertical poles 52 are fixed to the ground on both sides of the material conveyor belt 4. Two poles 52 are set along the length of the material conveyor belt 4. Each pole 52 is slidably connected to a lifting slider 53 in the vertical direction. Vertical corner openings 55 are opened at the four corners of the lower surface of the material plate 1. The top surface of the corner opening 55 is higher than the top surface of the passage 56. The two ends of a passage 56 are connected to the corresponding two corner openings 55. Each corner opening 55 allows a lifting slider 53 to enter vertically, so that the lifting slider 53 can move a material plate 1 to the same height as the frame conveyor belt 3. This eliminates the need for the frame clamp 2 to make vertical movements of different strokes, allowing the existing equipment to be adapted to this application without major modifications. Furthermore, the lifting slider 53 can pass through the passage 56, so that the material plate 1 is not obstructed by the lifting slider 53 when it is being transmitted on the material conveyor belt 4.

[0041] Reference Figure 4Each upright 52 is rotatably connected to a vertically oriented sliding screw 57, which is threaded through and connected to the lifting slider 53. Each sliding screw 57 is coaxially fixedly connected to a screw pulley 58 at its bottom end. A sliding motor 54 is detachably connected between two uprights 52. The output shaft of the sliding motor 54 is coaxially fixedly connected to a motor pulley 59. A synchronous belt 41 is connected between the motor pulley 59 and all the screw pulleys 58, so that all the sliding screws 57 rotate synchronously, and all the lifting sliders 53 move vertically synchronously.

[0042] Reference Figure 4 The material plate conveyor belt 4 is detachably connected to a material plate sensor 43 located in front of the detection rod 5, in accordance with its own transmission direction. The material plate sensor 43 can be a photoelectric sensor that is consistent with the skeleton sensor 51. The material plate sensor 43 can be directly aligned with a material plate 1 located in front of the material plate 1 lifted by the lifting slider 53. After all the skeleton sensors 51 are aligned one-to-one with each row of coil skeletons of a material plate 1, the external controller controls the material plate sensor 43 to operate to detect whether there is a material plate 1 aligned with the material plate sensor 43. If the material plate sensor 43 cannot detect the presence of the material plate 1, the external controller controls the external audible and visual alarm to sound an alarm, so that the operator can check the situation in time to ensure that the material plate 1 with coil skeletons can be continuously fed.

[0043] The principle of the feeding device for an electromagnetic coil riveting assembly equipment according to an embodiment of this application is as follows: the material plate 1 with the highest stack height is first adjusted by the rotation of the rotating plate 33 controlled by the external controller under the image recognition action of the recognition camera 34. After the material plate 1 is in the correct direction, the two wheel plates 38 rotate, so that the material plate 1 with the direction adjusted is lifted to a certain height, so that the corresponding material plate 1 is separated from the stacked material plates 1. Then, when the material plate conveyor belt 4 is driven, the push sensor 49 detects that there is no material plate 1 at the end of the material plate conveyor belt 4 near the end side frame 44, so that the push plate cylinder 47 drives the push plate 48 to push the material plate 1 onto the material plate conveyor belt 4, so that the stacked material plates 1 are continuously fed onto the material plate conveyor belt 4 one by one.

[0044] Then, after each predetermined distance movement of the material plate conveyor belt 4, the lifting slider 53 lifts the corresponding material plate 1, so that each skeleton sensor 51 is aligned with a row of coil skeletons. Then, the skeleton clamp 2 clamps the coil skeletons on the corresponding material plate 1 one row at a time onto the skeleton conveyor belt 3. When all the coil skeletons are clamped away, the lifting slider 53 moves down, and then the material plate conveyor belt 4 moves another predetermined distance, so that a new material plate 1 can be lifted again by the lifting slider 53, so that each material plate 1 on the material plate conveyor belt 4 is continuously lifted to feed the coil skeletons.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for an electromagnetic coil riveting assembly equipment, comprising a material plate for placing coil frames in several rows, a frame clamping part for clamping and moving the coil frames on the material plate, and a frame conveyor belt for receiving and conveying the coil frames clamped by the frame clamping part, characterized in that: It also includes a material plate conveyor belt for placing and conveying material plates. The conveyor belt has fixed detection rods on its sides, each equipped with several skeleton sensors to detect whether the coil skeletons on the material plate have been clamped and removed by the skeleton clamps. Each skeleton sensor corresponds to a row of coil skeletons on the material plate, ensuring that the conveyor belt moves only after all the coil skeletons on a material plate have been removed. Fixed uprights are located on opposite sides of the conveyor belt, each upright slidably connected to a lifting slider that moves the material plate to the same height as the surface of the coil skeletons conveyed by the skeleton conveyor belt. The uprights are equipped with mechanisms to move the lifting sliders. A slider motor is included; each of the four corners of the material plate has a lifting slider, and each corner of the material plate has a corner opening for the lifting slider to enter and move the material plate. Two corner openings on the side of the material plate conveyor belt with uprights are grouped together. A passageway is formed on the side of the material plate with one group of corner openings, connecting the two corner openings in the same group. The lifting slider passes through the passageway during the movement of the material plate conveyor belt. The maximum distance between the corner opening and the material plate conveyor belt is greater than the maximum distance between the passageway and the material plate conveyor belt. The material plate conveyor belt delivers the material plate to a fixed end frame at one end of the frame clamp. The end frame is equipped with a transmission mechanism. A vertically moving conveyor belt is fixedly connected to a transmission unit for placing stacked material plates and detecting the weight and height of the material plates. A pusher cylinder is mounted on the end frame, and the power rod of the pusher cylinder is fixedly connected to a pusher plate that pushes the material plates furthest from the transmission unit onto the conveyor surface of the material plate conveyor belt. A pusher sensor is located at one end of the material plate conveyor belt near the end frame to detect the presence of material plates on the conveyor belt. The transmission unit includes a belt block fixedly connected to the vertically moving conveyor belt, a pressure sensor and a distance sensor mounted on the belt block, a rotating plate motor mounted on the pressure sensor, and a mechanism for stacking material plates mounted on the rotating shaft of the rotating plate motor. The rotating plate on which the material plate is placed has an end-mounted recognition camera positioned directly opposite the material plate conveyor belt. A bottom groove is formed on the lower surface of the material plate to allow the coil skeleton on the lower material plate to enter. Positioning frames, tightly inserted into the bottom groove, are fixedly connected to the periphery of the upper surface of both the material plate and the rotating plate. A lifting mechanism is mounted on the end-mounted side to lift the highest material plate on the rotating plate, allowing it to be smoothly pushed by a pusher plate. The lifting mechanism includes two wheel plates rotatably connected to the end-mounted frame and a wheel plate motor mounted on the end-mounted frame and driving the wheel plates to rotate. The wheel plates can contact the side edge of the highest material plate on the rotating plate.

2. The feeding device for an electromagnetic coil riveting assembly equipment according to claim 1, characterized in that: Each of the uprights is rotatably connected to a slider screw threaded to a lifting slider. Each slider screw is coaxially fixedly connected to a screw pulley. The output shaft of the slider motor is coaxially fixedly connected to a motor pulley. A synchronous belt drives the transmission between the motor pulley and the screw pulley.

3. The feeding device for an electromagnetic coil riveting assembly equipment according to claim 1, characterized in that: The material conveyor belt is positioned in front of the detection rod along its own transmission direction and is equipped with a material plate sensor to detect whether there are material plates on the material plate conveyor belt. The material plate sensor and the frame sensor correspond one-to-one with two material plates.

4. The feeding device for an electromagnetic coil riveting assembly equipment according to claim 1, characterized in that: The end frame is fixedly connected to a receiving plate that is flush with the conveyor surface of the material plate conveyor belt. The receiving plate feed plate moves smoothly from the wheel plate to the material plate conveyor belt.

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