NdFeB bar stock directional arrangement feeding device

Abstract

The invention relates to the field of neodymium-iron-boron production and processing, in particular to a neodymium-iron-boron bar directional arranging and feeding device. The invention aims to provide the neodymium-iron-boron bar stock directional arranging and feeding device which is high in automation degree, lossless in conveying and capable of improving the yield and the production efficiency through online screening. A neodymium-iron-boron bar stock directional arranging and feeding device comprises a main frame, and three bar stock conveying belts are installed on the top of the main frame. A connecting frame is fixedly connected to the right of the upper side of the main frame, and a mounting frame is fixedly connected to the left of the upper side of the main frame. The device integrates the functions of automatic mounting, accurate positioning, pushing-out, conveying, detecting, screening, pushing-in, crushing and discharging, the whole-process automatic operation of taking out neodymium iron boron bars from neodymium iron boron forming molds and accurately loading the neodymium iron boron bars into rubber molds is achieved, the traditional operation mode of manually taking, placing and arranging the bars is not needed, the production efficiency is improved, and the production cost is reduced. And meanwhile, the labor intensity and the labor cost are remarkably reduced.

Description

A feeding device for directional arrangement of neodymium iron boron bars Technical Field

[0001] This invention relates to the field of neodymium iron boron (NdFeB) production and processing, and more particularly to a feeding device for directional arrangement of NdFeB rods. Background Technology

[0002] Currently, the process of feeding NdFeB rods from the NdFeB molding die to the rubber mold for subsequent processing requires manual intervention through a glove compartment. The pressed NdFeB rods are poured out of the molding die or removed from the die. Then, the rods are picked up one by one through the glove compartment and placed into the rubber mold. During this process, it is difficult to precisely control the force applied when picking up the NdFeB rods through the glove compartment, which can easily lead to breakage, fragmentation, or localized deformation of the already weak NdFeB rods. This is extremely inefficient. Furthermore, the manual method of loading the NdFeB rods into the rubber mold through the glove compartment makes it difficult to precisely control the loading accuracy, which can easily cause the edge of the NdFeB rod to come into contact with the rubber mold. The process of removing NdFeB rods from the NdFeB molding die often results in localized defects or cracks due to collisions between the rods and the worktable. While some NdFeB rods with obvious defects can be manually screened, those with subtle defects or internal cracks are difficult to identify and screen manually. Placing defective NdFeB rods in rubber molds for further processing significantly impacts the yield rate of NdFeB rod production. Furthermore, the defective rods occupy a portion of the mold holes in the rubber molds, wasting resources and negatively affecting production efficiency.

[0003] Therefore, it is necessary to develop a directional feeding device for NdFeB rods to solve the above problems. Summary of the Invention

[0004] In order to overcome the shortcomings of low efficiency, high loss and low yield of subsequent processing in the current process of feeding NdFeB rods, the purpose of this invention is to provide a NdFeB rod directional feeding device with high automation, non-destructive conveying, online screening to improve yield and production efficiency.

[0005] A neodymium iron boron (NdFeB) rod directional feeding device includes a main frame with three sets of rod conveyor belts mounted on its top. A connecting frame is fixedly connected to the upper right side of the main frame, and an mounting frame is fixedly connected to the upper left side. Legs are fixedly connected to both sides of the main frame, and mold conveyor belts are installed inside the lower sides of each leg. A lifting platform is fixedly connected to the upper side of each leg, and a fixing frame is fixedly connected to the upper right side of the right leg. Each lifting platform has a position adjustment mechanism at its moving part, and each position adjustment mechanism has a supporting mechanism. The position adjustment mechanism is used to adjust the front-rear position of the supporting mechanism connected to it. The supporting mechanisms are used to hang and release NdFeB forming molds on the mold conveyor belts on both sides. The system includes a mold and a rubber mold. Positioning mechanisms are located at the upper center of the mounting frame and the upper right side of the fixing frame, respectively. These positioning mechanisms are used to detect the position of the NdFeB molding mold and the rubber mold. An ejection mechanism is located on the right side of the fixing frame, used to eject the NdFeB rod from the NdFeB molding mold to the left. A pushing mechanism is located on the upper left side of the mounting frame, used to push the NdFeB rod located on the left side of the rod conveyor belt into the rubber mold. A detection mechanism is located on the left side of the connecting frame, used to detect defects in the NdFeB rod on the rod conveyor belt. A crushing mechanism is located on the upper right side of the mounting frame, used to crush defective NdFeB rods.

[0006] Preferably, the position adjustment mechanism includes a lifting frame, and a lifting frame is fixedly connected to the moving part of each lifting platform. An electric slide rail is installed at the front and rear positions on the upper side of each lifting frame, and the moving part of each electric slide rail extends downward below the lifting frame. The load-bearing mechanism is respectively located between the lower sides of the moving parts of the two electric slide rails at each lifting frame.

[0007] Preferably, the support mechanism includes a mounting frame, and a mounting frame is fixedly connected to the lower side of the moving part of each electric slide rail. A rotating cylinder is rotatably connected to the two mounting frames below each lifting frame on opposite sides. A drive motor is installed on the left and right sides of the upper side of the mounting frame, and the output shaft of the drive motor is connected to the upper end of the rotating cylinder corresponding to the position.

[0008] Preferably, the positioning mechanism includes a first electric push rod, which is fixedly connected to the upper middle position of the mounting bracket and the upper right position of the fixing bracket, and a camera module is installed at the lower end of the telescopic part of the first electric push rod.

[0009] Preferably, the ejection mechanism includes a first transverse platform, which is installed at the middle right side of the fixed frame, and an ejection rod is fixedly connected to the moving part of the first transverse platform.

[0010] Preferably, the propulsion mechanism includes a second lateral moving platform, which is fixedly connected to the upper left side of the mounting frame. A second electric push rod is fixedly connected to the moving part of the second lateral moving platform. A pressure sensor is installed at the lower end of the telescopic part of the second electric push rod. A push rod is fixedly connected to the left side of the detection surface of the pressure sensor. A first distance measuring sensor is fixedly connected to the left side of the mounting frame.

[0011] Preferably, the detection mechanism includes an electric circular slide rail, an electric circular slide rail is installed on the left side of the connecting frame, a rotating ring is fixedly connected to the left side of the rotating part of the electric circular slide rail, a scanning probe module is installed at both the front and rear positions on the left side of the rotating ring, and a second ranging sensor is installed in the middle of the upper side of the connecting frame.

[0012] Preferably, the crushing mechanism includes a third electric push rod, which is installed on the upper right side of the mounting frame. A protective frame is fixedly connected to the lower end of the telescopic component of the third electric push rod, and a crushing wheel is installed inside the protective frame.

[0013] Preferably, it also includes an airbag layer, which is evenly distributed along the bar conveyor belt.

[0014] The beneficial effects are: 1. This invention integrates the functions of automatic loading, precise positioning, ejection, conveying, detection, screening, propulsion and crushing discharge, realizing the fully automated operation of taking out NdFeB rods from the NdFeB molding die and accurately loading them into the rubber mold. It eliminates the need for the traditional manual picking and arranging of rods, thereby improving production efficiency and significantly reducing labor intensity and labor costs.

[0015] 2. Through the cooperation of the positioning mechanism and the position adjustment mechanism, this invention can detect and dynamically adjust the center position of the mold hole of the neodymium iron boron molding die and the rubber mold in real time, so that it is precisely aligned with the conveying path. Combined with the synchronous control of the bar conveyor belt and the pushing mechanism, it effectively avoids the bar from bumping, scratching and breaking during the ejection, conveying and insertion process, ensuring the integrity and surface quality of the bar, and providing high-quality semi-finished products for subsequent processes.

[0016] 3. By employing a combination of detection mechanism and crushing structure, this invention can perform comprehensive and non-destructive scanning and detection of surface and internal defects of bar stock during the conveying process. The crushing mechanism can immediately crush and discharge defective bar stock, ensuring that defective bar stock will not flow into subsequent processes. By adopting online detection and immediate rejection, it can fundamentally guarantee that all bar stock finally loaded into the rubber mold is qualified, greatly improving the overall consistency and yield of the product.

[0017] 4. The present invention has a compact design and reasonable layout. The NdFeB molding die and the rubber die are loaded and unloaded on the two sides respectively, with clear material flow and no interference between them. This allows the device to be installed as a whole in a closed protective box and operated through a glove compartment. This not only protects the operators from potential hazards, but more importantly, it avoids excessive contact between the NdFeB material and the air, preventing oxidation and pollution, and meeting the stringent requirements of the clean environment for magnetic material production. Attached Figure Description

[0018] Figure 1 is a first-view schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is a second-view schematic diagram of the overall structure of the present invention.

[0020] Figure 3 is a schematic diagram of the structure of the main frame, legs and mold conveyor belt in this invention.

[0021] Figure 4 is a schematic diagram of the structure of the mounting frame, legs, lifting platform and fixing frame in this invention.

[0022] Figure 5 is a schematic diagram of the positioning mechanism, propulsion mechanism, detection mechanism and crushing mechanism in this invention.

[0023] Figure 6 is a three-dimensional structural diagram of the detection mechanism in this invention.

[0024] Figure 7 is a first-view schematic diagram of the mounting bracket, fixing bracket and positioning mechanism in this invention.

[0025] Figure 8 is a second-view schematic diagram of the mounting bracket, fixing bracket and positioning mechanism in this invention.

[0027] Figure 9 is a partial three-dimensional structural diagram of the bar conveyor belt section of the present invention.

[0028] Figure 10 is a three-dimensional structural diagram of the lifting platform and position adjustment mechanism of the present invention.

[0029] Figure 11 is a three-dimensional structural diagram of the position adjustment mechanism and the support mechanism of the present invention.

[0030] Figure 12 is a three-dimensional structural diagram of the support mechanism of the present invention.

[0031] Figure 13 is a partial three-dimensional structural diagram of the support mechanism of the present invention.

[0032] Figure 14 is a three-dimensional structural diagram of the positioning mechanism, propulsion mechanism and crushing mechanism in this invention.

[0033] Figure 15 is a three-dimensional structural diagram of the positioning mechanism and the ejection mechanism in this invention.

[0034] The above-mentioned attached drawings include the following reference numerals: 1. Main frame; 2. Bar conveyor belt; 3. Connecting frame; 4. Mounting frame; 5. Leg; 6. Mold conveyor belt; 7. Lifting platform; 8. Fixed frame; 9. Position adjustment mechanism; 10. Loading mechanism; 11. Positioning mechanism; 12. Pushing mechanism; 13. Pushing mechanism; 14. Detection mechanism; 15. Crushing mechanism; 91. Lifting frame; 92. Electric slide rail; 101. Hanging frame; 102. Rotary drum; 103. Drive motor; 11. 1. First electric push rod; 112. Camera module; 121. First transverse platform; 122. Push rod; 131. Second transverse platform; 132. Second electric push rod; 133. Pressure sensor; 134. Push rod; 135. First distance sensor; 141. Electric circular slide rail; 142. Rotating ring; 143. Scanning probe module; 144. Second distance sensor; 151. Third electric push rod; 152. Protective frame; 153. Crusher wheel; 16. Airbag layer. Detailed Implementation

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0036] Example 1, as shown in Figures 1-10, is a neodymium iron boron (NdFeB) bar directional feeding device, comprising a main frame 1, bar conveyor belts 2, connecting frame 3, mounting frame 4, legs 5, mold conveyor belt 6, lifting platform 7, fixing frame 8, position adjustment mechanism 9, supporting mechanism 10, positioning mechanism 11, ejection mechanism 12, propulsion mechanism 13, detection mechanism 14, and crushing mechanism 15. The main frame 1 is a horizontally positioned, centrally located, three-section truss-shaped frame structure. Bar conveyor belts 2 are installed at the positions of the three truss sections of the main frame 1. Each bar conveyor belt 2 has a circular recessed structure, and the axis of each circular recess is on the same horizontal line. The circular recessed structure of the bar conveyor belt 2 is used for stable feeding. The NdFeB rods are placed and conveyed laterally. Each rod conveyor belt 2 is independently controlled by a servo drive system, and there is a gap between every two rod conveyor belts 2. A connecting frame 3 is fixedly connected to the upper right side of the main frame 1. The connecting frame 3 is a portal frame structure and spans across the upper part of the rod conveyor belt 2 on the right side. A mounting frame 4 is fixedly connected to the upper left side of the main frame 1. The mounting frame 4 is a portal frame structure with a H-shaped frame on the upper side. The mounting frame 4 and its upper frame structure span across the two sets of rod conveyor belts 2 on the left and middle sides. Legs 5 are fixedly connected to both sides of the main frame 1. The upper side of the legs 5 is a frame structure, and the lower side of each leg 5 is equipped with a mold conveyor belt 6. The width of each conveyor belt 6 is smaller than the left and right widths of the NdFeB molding die and the rubber mold. The mold conveyor belts 6 are all fixed-distance conveyors, each with a structure containing multiple evenly distributed positioning mold pieces, with two pieces in each group. The right-side conveyor belt 6 is used to place and transport the NdFeB molding die, positioning it between each group of positioning mold pieces. The left-side conveyor belt 6 is used to place and transport the rubber mold, positioning it between each group of positioning mold pieces. Each support frame 5 has a fixedly connected lifting platform 7, which is a gantry-type electric lift. Each lifting platform 7 spans across the top of the connected legs 5. A fixed frame 8 is fixedly connected to the upper right side of the right leg 5. The fixed frame 8 is a portal frame structure. Each moving part of the lifting platform 7 is equipped with a position adjustment mechanism 9. Each position adjustment mechanism 9 is equipped with a support mechanism 10. The position adjustment mechanism 9 is used to adjust the front and rear positions of the support mechanism 10 connected to it. The support mechanism 10 on the right side is used to hang and release neodymium iron boron molding molds on the right mold conveyor belt 6. The support mechanism 10 on the left side is used to hang and release rubber molds on the left mold conveyor belt 6. The lifting platform 7 is used to drive the position adjustment mechanism 9 and the support mechanism 10 connected to it, as well as the rubber molds and neodymium iron boron molding molds they hang on, to move up and down.Positioning mechanisms 11 are installed at the upper center of the mounting bracket 4 and at the upper right side of the fixing bracket 8. After both positioning mechanisms 11 are in place, their positioning centers are on the same horizontal line as the circular recess axis of the bar conveyor belt 2. The positioning mechanisms 11 use visual inspection to detect the center position of the mold holes of the NdFeB molding die and the rubber mold. The left positioning mechanism 11 uses the detection data of the center position of one of the mold holes of the rubber mold to control the operation of the left position adjustment mechanism 9, so that the axis of one of the mold holes of the rubber mold carried by the left position adjustment mechanism 9 and the circular recess axis of the bar conveyor belt 2 are on the same horizontal line. Online, the right-side positioning mechanism 11 uses the detection data of the center position of one of the mold holes of the NdFeB forming mold to control the operation of the right-side position adjustment mechanism 9, so that the axis of one of the mold holes of the NdFeB forming mold carried by the right-side position adjustment mechanism 9 and the circular recess axis of the bar conveyor belt 2 are on the same horizontal line. The right side of the fixing frame 8 is provided with an ejection mechanism 12. The ejection path of the ejection mechanism 12 is on the same horizontal line as the circular recess axis of the bar conveyor belt 2. The ejection mechanism 12 is used to eject the NdFeB bar located in the mold hole of the NdFeB forming mold that is on the same horizontal line as the circular recess axis to the left, and push the NdFeB bar to the right side. At the circular recessed structure of the bar conveyor belt 2, when the ejection mechanism 12 starts its leftward pushing operation, the right bar conveyor belt 2 can be started, so that the running speed of the right bar conveyor belt 2 is consistent with the leftward pushing speed of the ejection mechanism 12. This allows the NdFeB bar to be directly conveyed to the left by the right bar conveyor belt 2 after being ejected from the NdFeB molding die. Then, the NdFeB bar will be conveyed to the left from the right bar conveyor belt 2, and then conveyed to the left through the middle and left bar conveyor belts 2 into the mold hole of the rubber mold. A pushing mechanism 13 is provided on the left side of the H-shaped frame structure on the upper side of the mounting frame 4. The ejection path of the pushing mechanism 13 after it is in place is consistent with the circular recessed structure of the bar conveyor belt 2. The shaft centers are on the same horizontal line. The pushing mechanism 13 is used to completely push the NdFeB rods on the left-side rod conveyor belt 2 into the mold hole of the rubber mold. A detection mechanism 14 is provided on the left side of the connecting frame 3. The detection path of the detection mechanism 14 is located in the middle gap between the two rod conveyor belts 2 on the middle and right sides. The detection mechanism 14 is used to detect defects in the NdFeB rods conveyed from the right side to the middle rod conveyor belt 2. A crushing mechanism 15 is provided on the right side of the upper frame structure of the mounting frame 4. The crushing mechanism 15 is used to crush the NdFeB rods that have been detected as defective by the detection mechanism 14, so that the crushed NdFeB rods can be easily discharged from the middle gap between the rod conveyor belts 2 on the middle and left sides.

[0037] As shown in Figures 10-12, the position adjustment mechanism 9 includes a lifting frame 91 and an electric slide rail 92. Each lifting platform 7 has a fixedly connected lifting frame 91 at its moving part. Each lifting frame 91 has a rectangular through-hole in the center. Electric slide rails 92 are installed at the front and rear positions on the upper side of each lifting frame 91. Each electric slide rail 92 is a horizontally positioned linear track pair independently controlled by a servo system. The moving part of each electric slide rail 92 extends downwards below the rectangular through-hole structure of the lifting frame 91. The support mechanism 10 has two electric slide rails respectively located at each lifting frame 91. Between the lower sides of the moving parts of the sliding rail 92; by synchronously controlling the two electric sliding rails 92 at each lifting frame 91 to move back and forth, the supporting mechanism 10 connected to it can move back and forth, so that the rubber mold or neodymium iron boron molding mold hanging on the supporting mechanism 10 can be adjusted in front and back position; by independently controlling each electric sliding rail 92 at each lifting frame 91 to move back and forth, the supporting mechanism 10 connected to it can be opened or closed, so that the rubber mold or neodymium iron boron molding mold hanging on the supporting mechanism 10 can be gripped or released on the mold conveyor belt 6.

[0038] As shown in Figures 10-13, the support mechanism 10 includes a mounting frame 101, a rotating drum 102, and a drive motor 103. Each electric slide rail 92 has a mounting frame 101 fixedly connected to its lower side of the moving part. The mounting frames 101 are all portal frame structures with forks on the lower side. The span of the forks on the lower side of each mounting frame 101 is greater than the left and right width of the mold conveyor belt 6. Each mounting frame 101 has a hook-tooth structure at its lower fork. When the hook-tooth structure is closed, it is located below the left and right sides of the mold. During lifting, the hook-tooth structure lifts the mold. The hook-tooth structures of the two mounting frames 101 on the lower side of each lifting frame 91 face each other and are positioned front to back. Correspondingly, by controlling the two electric slide rails 92 at each lifting frame 91, the two mounting frames 101 below the lifting frame 91 can move back and forth synchronously or open and close. Each of the two mounting frames 101 below the lifting frame 91 has a rotating drum 102 rotatably connected to one side of the fork arm structure. The rotating drum 102 is a hard rubber roller. Drive motors 103 are installed on the left and right sides of the upper side of the mounting frame 101. The drive motors 103 are controlled by a servo system. The output shaft of the drive motor 103 is connected to the upper end of the rotating drum 102 corresponding to the position. When the drive motor 103 is started, the drive motor 103 will drive the rotating drum 102 to rotate.

[0039] As shown in Figures 14 and 15, the positioning mechanism 11 includes a first electric push rod 111 and a camera module 112. The first electric push rod 111 is fixedly connected to the upper middle position of the mounting bracket 4 and the upper right position of the fixing bracket 8. The first electric push rod 111 is an electric telescopic rod independently controlled by a servo system. The telescopic parts of the first electric push rod 111 all face downward. The lower end of the telescopic parts of the first electric push rod 111 is equipped with a camera module 112. The camera module 112 is used to detect the center position of the mold hole of the NdFeB molding die and the rubber mold by visual inspection. After the first electric push rod 111 is started and the camera module 112 moves downward and is in place, the detection center of the two camera modules 112 is on the same horizontal line as the center of the circular recess of the bar conveyor belt 2.

[0040] As shown in Figure 15, the ejection mechanism 12 includes a first transverse platform 121 and an ejection rod 122. The first transverse platform 121 is installed in the middle of the right side of the fixed frame 8. The first transverse platform 121 is a horizontal gantry electric transverse machine. The first transverse platform 121 has the same operating mechanism as the lifting platform 7. The ejection rod 122 is fixedly connected to the moving part of the first transverse platform 121. The first transverse platform 121 is used to drive the ejection rod 122 to move left and right. The ejection path of the first transverse platform 121 driving the ejection rod 122 to move is on the same horizontal line as the circular recess axis of the bar conveyor belt 2. The ejection rod 122 is used to extend into the NdFeB forming mold and eject the NdFeB bar in a mold hole on the same horizontal line as it, and push the NdFeB bar to the circular recess structure of the bar conveyor belt 2 on the right side. After ejecting the NdFeB bar, the first transverse platform 121 will drive the ejection rod 122 to move to the right to reset.

[0041] As shown in Figure 14, the propulsion mechanism 13 includes a second transverse platform 131, a second electric push rod 132, a pressure sensor 133, a push rod 134, and a first ranging sensor 135. The second transverse platform 131 is fixedly connected to the left side of the upper frame structure of the mounting bracket 4. The structure and operating mechanism of the second transverse platform 131 are the same as those of the first transverse platform 121. The second electric push rod 132 is fixedly connected to the moving part of the second transverse platform 131. The second electric push rod 132 is an electric telescopic rod independently controlled by a servo system. The telescopic part of the second electric push rod 132 faces downward. The pressure sensor 133 is installed at the lower end of the telescopic part of the second electric push rod 132. A push rod 134 is fixedly connected to the left side of the detection surface of 133. After the second electric push rod 132 drives the pressure sensor 133 and the push rod 134 to move downward and into position, the axis of the push rod 134 is on the same horizontal line as the axis of the circular recess of the bar conveyor belt 2. After the second transverse platform 131 is started, the second transverse platform 131 will drive the second electric push rod 132 and the push rod 134 to move to the left. A first distance sensor 135 is fixedly connected to the left side of the mounting frame 4. The first distance sensor 135 is configured to start the control program after two triggers. The first distance sensor 135 is used to detect whether there are neodymium iron boron bars being conveyed on the left bar conveyor belt 2 below it.When a neodymium iron boron (NdFeB) rod is conveyed to the left until its left end is below the first ranging sensor 135, the first ranging sensor 135 will detect the change in detection distance, and will be in its first triggered state. As the left-side conveyor belt 2 continues to convey the NdFeB rod to the left until its right end leaves the detection area of ​​the first ranging sensor 135, the first ranging sensor 135 will detect another change in detection distance, and will be in its second triggered state. At this point, the first ranging sensor 135 will initiate a control program, causing the left-side conveyor belt 2 to pause. The NdFeB rod is now located at the upper left end of the left-side conveyor belt 2, while the left end of the NdFeB rod has been conveyed into a mold hole of the rubber mold located on the left. The left-side conveyor belt 2 is insufficient to completely convey the right end of the NdFeB rod. The material is fed into the rubber mold. At this point, the second electric push rod 132 can be controlled to move the push rod 134 downwards to position it, and the second transverse platform 131 can be controlled to move the push rod 134 to the left until the left end of the push rod 134 contacts the right end face of the NdFeB rod. When the pressure sensor 133 detects a pressure signal at a preset threshold, it is determined that the push rod 134 has abutted the end face of the NdFeB rod. Subsequently, the control system starts the second transverse platform 131 to run synchronously with the left rod conveyor belt 2 at the same speed. The second transverse platform 131 moves synchronously with the left rod conveyor belt 2, allowing the push rod 134 and the left rod conveyor belt 2 to work together to completely push the NdFeB rod into the mold hole of the rubber mold. Afterwards, the second electric push rod 132 and the second transverse platform 131 can be controlled to reset. This process repeats until the next NdFeB rod triggers the first distance sensor 135 twice.

[0042] As shown in Figure 6, the detection mechanism 14 includes an electric circular slide rail 141, a rotating ring 142, a scanning probe module 143, and a second ranging sensor 144. The electric circular slide rail 141 is mounted on the left side of the connecting frame 3. The rotation center of the electric circular slide rail 141 is on the same horizontal line as the circular recess axis of the bar conveyor belt 2. The rotating ring 142 is fixedly connected to the left side of the rotating component of the electric circular slide rail 141. Scanning probe modules 143 are installed at both the front and rear positions on the left side of the rotating ring 142. The scanning probe module 143 is an ultrasonic scanning flaw detection module used to detect surface and internal defects of the NdFeB bars passing through it. A second ranging sensor 144 is mounted on the upper middle part of the connecting frame 3. The second distance sensor 144 is used to detect whether there are neodymium iron boron bars being conveyed on the right-side bar conveyor belt 2 below it. After the electric circular slide rail 141 is activated, it will drive the two scanning probe modules 143 to rotate. The scanning detection path of the scanning probe modules 143 is located in the middle and right-side gap of the two bar conveyor belts 2. When a neodymium iron boron bar is conveyed from right to left on the right-side bar conveyor belt 2, the second distance sensor 144 is triggered. At this time, the electric circular slide rail 141 will drive the two scanning probe modules 143 to rotate, and the two scanning probe modules 143 will be activated. Conveyor belt 2 will also start operating simultaneously. At this time, the left end of the NdFeB rod will be in the scanning detection area of ​​the two scanning probe modules 143. The detection data of the NdFeB rod will be transmitted to an external computer for program judgment and analysis. At this time, the NdFeB rod continues to be conveyed to the left by the right rod conveyor belt 2 and gradually moves to the middle rod conveyor belt 2 for conveying until the right end of the NdFeB rod leaves the detection area of ​​the second ranging sensor 144. At this time, the second ranging sensor 144 will stop being triggered. However, the right section of the NdFeB rod has not yet been scanned and detected by the two scanning probes. At this time, the electric circular slide rail 141 and the scanning probe module 143 will run with a delay. The set time, which can be set by the running speed of the bar conveyor belt 2, continues until the NdFeB bar is completely scanned and detected by the two scanning probe modules 143. If the scan detection data of the NdFeB bar indicates that it has no defects, it can continue to be transported to the rubber mold by the bar conveyor belts 2 in the middle and left. If the scan detection data of the NdFeB bar indicates that it has defects, it cannot enter the rubber mold for subsequent curing or other processing. At this time, the crushing mechanism 15 is controlled to operate, so that the crushing mechanism 15 crushes the NdFeB bar that has been detected as having defects, so that the crushed NdFeB bar can be easily discharged from the middle gap of the bar conveyor belts 2 in the middle and left.

[0043] As shown in Figure 14, the crushing mechanism 15 includes a third electric push rod 151, a protective frame 152, and a crushing wheel 153. The third electric push rod 151 is installed on the right side of the upper frame structure of the mounting frame 4. The third electric push rod 151 is an electric telescopic rod independently controlled by a servo system. The telescopic part of the third electric push rod 151 faces downward. The lower end of the telescopic part of the third electric push rod 151 is fixedly connected to the protective frame 152. The protective frame 152 is an open hollow structure on the lower and right sides. The crushing wheel 153 is installed inside the protective frame 152. The crushing wheel 153 is a structure with evenly distributed protruding spikes on its outer periphery driven by a hub motor. When a NdFeB bar is detected to have a defect by the detection structure, and when the NdFeB bar leaves the detection area of ​​the second ranging sensor 144, the NdFeB bar continues to be conveyed by the middle bar conveyor belt 2. During the process, the third electric push rod 151 can be activated to drive the protective frame 152 and the crushing wheel 153 downwards. At the same time, the crushing wheel 153 is turned on to rotate clockwise, so that the crushing wheel 153 moves downwards into the conveying path of the NdFeB rod. When the NdFeB rod is conveyed to the left and contacts the crushing wheel 153, the crushing wheel 153 will crush the NdFeB rod into fine particles, so that they can be discharged from the middle gap of the rod conveyor belt 2 on the middle and left sides. This prevents defective NdFeB rods from entering the rod conveyor belt 2 on the left side and being conveyed to the rubber mold. After the set running time, the third electric push rod 151 and the crushing wheel 153 will be reset. The set time can be matched and set according to the length of the NdFeB rod and the running speed of the rod conveyor belt 2.

[0044] As shown in Figure 9, it also includes an airbag layer 16. The circular recesses of the conveyor belt structure of the bar conveyor belt 2 are evenly distributed with airbag layers 16. The airbag layer 16 is a thin airbag structure. The airbag layer 16 is used to protect the surface of the neodymium iron boron bar during the process of being transported and transferred by the bar conveyor belt 2.

[0045] Example 2, as shown in Figures 1-15, describes the assembly of the NdFeB rod orientation feeding device: The device is installed in a closed protective box in the NdFeB production workshop using two legs 5, with the front and rear positions of the left and right mold conveyor belts 6 positioned at the glove compartment operation position of the protective box. This allows for manual placement of the NdFeB forming mold containing the pressed NdFeB rods at the front position of the right mold conveyor belt 6, facilitating the operator to remove the empty NdFeB forming mold from the rear position of the right mold conveyor belt 6. It also facilitates manual placement of the empty rubber mold at the front position of the left mold conveyor belt 6, and allows for manual removal of the fully loaded rubber mold from the rear position of the left mold conveyor belt 6 after the NdFeB rods have been pushed in.

[0046] The manual handling of NdFeB rods using this device is as follows: After NdFeB powder is added to a NdFeB molding die and pressed into shape, the operator places the NdFeB molding die containing the NdFeB rods between a set of positioning molds on the right mold conveyor belt 6 through the glove compartment of the protective box. Then, the upper mold of the NdFeB molding die is removed to position the NdFeB molding die during transport on the right mold conveyor belt 6. Simultaneously, an empty rubber mold can be placed between a set of positioning molds on the left mold conveyor belt 6 to position the empty rubber mold during transport on the left mold conveyor belt. Positioning is performed on conveyor belt 6 during transportation; then, the two mold conveyor belts 6 can be started to operate, so that both mold conveyor belts 6 perform a fixed-distance transport to the rear, so that the placed NdFeB molding mold and rubber mold are respectively located below the two support mechanisms 10. At this time, the next set of positioning mold pieces on the two mold conveyor belts 6 are all in place at the positions where the next batch of NdFeB molding molds and rubber molds can be placed, as described above. At this time, the next batch of rubber molds can be placed, and at the same time, the NdFeB powder is pressed and formed on an empty NdFeB molding mold; while the two support mechanisms 10 are respectively located below the two support mechanisms 10. The fully loaded NdFeB molding die and the empty rubber die below the NdFeB rod feeding device are automatically lifted, positioned, ejected, inspected, and pushed by the rods located below the two support mechanisms 10. This is achieved through the coordinated operation of the rod conveyor belt 2, lifting platform 7, position adjustment mechanism 9, support mechanism 10, positioning mechanism 11, ejection mechanism 12, pushing mechanism 13, detection mechanism 14, and crushing mechanism 15, along with program control. Defective rods are crushed and discharged, ensuring the fully loaded NdFeB molding die is properly positioned. The NdFeB rods inside the mold are pushed out one by one, and after inspection and screening, they are precisely and without damage pushed into the mold holes of the empty rubber mold until the mold holes of the rubber mold are evenly filled with NdFeB rods. Then they are lowered back to the original placement position of the left mold conveyor belt 6. Compared with the current operation of feeding NdFeB rods from the NdFeB molding mold to the rubber mold for subsequent processing, this device does not require manual operation of the NdFeB rods, manual removal and screening of NdFeB rods, or manual loading of rods into the rubber mold one by one, thus achieving the purpose of intelligent processing and non-destructive transfer.

[0047] The device transfers NdFeB rods from the NdFeB molding die to the rubber mold in the following manner: ① In the initial state, the program controls the lifting platforms 7 on both sides to lower the support mechanisms 10, while simultaneously controlling the two position adjustment mechanisms 9 to open the two support mechanisms 10 until the hook-tooth structure of the two mounting frames 101 of each support mechanism 10 exceeds the front-to-back length of the NdFeB molding die and the rubber mold, and until the mounting frames 101 of the two support mechanisms 10 are located below the bottom of the NdFeB molding die and the rubber mold, respectively. Then, the position adjustment mechanism 9 drives the support mechanisms 10 to close and move them towards the NdFeB molding die and the rubber mold they enclose. ① Mounting; ② After mounting the NdFeB molding die and the rubber die, the program controls the positioning mechanism 11 to move downwards to the positioning state and activates the camera module 112. Simultaneously, the lifting platform 7 is controlled to move upwards. According to the program settings, the lifting platform 7 moves the NdFeB molding die and the rubber die upwards to the uppermost die hole on their last side, roughly moving them to the detection position of the camera module 112. The camera module 112 will visually locate the die hole at this position of the NdFeB molding die and the rubber die, and detect and analyze the center position data and distance of the die hole of the NdFeB molding die and the rubber die. The data is used to control the corresponding support mechanism 10 and position adjustment mechanism 9, causing the drive motor 103 of the support mechanism 10 to drive the rotating drum 102 to rotate. This causes the rotating drum 102 to move the NdFeB molding die and rubber mold it holds left and right, ensuring that the distance data between the NdFeB molding die and rubber mold reaches the set value. At this point, the relative distance between the two camera modules 112 and their corresponding NdFeB molding die and rubber mold reaches the set value. The data also detects and analyzes the center position data of the mold holes in the NdFeB molding die and rubber mold, and uses this data to control the corresponding position adjustment mechanism 9 to move the NdFeB molding die and rubber mold. The entire assembly is finely adjusted back and forth to ensure that the center position of the mold hole of the NdFeB molding die and the rubber mold is on the same horizontal line as the detection center of the camera module 112. This completes the precise positioning of the mold hole of the NdFeB molding die and the rubber mold, ensuring that the axis of the mold hole of the NdFeB molding die and the rubber mold is precisely aligned with the axis of the bar conveyor belt 2. After positioning and fine adjustment, the two positioning mechanisms 11 are reset. ③ Then, the program controls the ejection mechanism 12 to start, causing the ejection rod 122 to move to the left, ejecting the NdFeB bar material in the aligned hole of the NdFeB molding die. At the same time, the right bar conveyor belt 2 starts synchronously to receive the ejected bar material and begin to transport it to the left.④ After the NdFeB rod is ejected from the mold hole of the NdFeB forming mold, the ejection mechanism 12 resets. Then, the right positioning mechanism 11 runs to the positioning detection state again. At the same time, according to the program setting, the right position adjustment mechanism 9 drives the connected support mechanism 10 to move backward, so that the next mold hole in the top row of the NdFeB forming mold moves to the detection position of the right positioning mechanism 11. As in the process described in "②", the NdFeB forming mold is precisely positioned and finely adjusted again to eject the next NdFeB rod in the NdFeB forming mold. Then, the positioning mechanism 11 resets again. ⑤ When the NdFeB rod is being conveyed by the right rod conveyor belt 2, the front end of the NdFeB rod triggers the second ranging sensor. When sensor 144 is activated, detection mechanism 14 starts, and electric annular slide rail 141 drives scanning probe module 143 to rotate. During the continuous leftward conveying of NdFeB rods, the entire rod is scanned and detected by the rotating probe. The detection data is transmitted to the computer for analysis in real time. If the scanning detection data of the NdFeB rod indicates that it has no defects, it can continue to be conveyed by the rod conveyor belts 2 in the middle and left. If the scanning detection data of the NdFeB rod indicates that it has defects, the crushing mechanism 15 is controlled to operate, so that the crushing mechanism 15 crushes the NdFeB rods that have been detected as having defects, so that the crushed NdFeB rods can be easily discharged from the middle gap of the rod conveyor belts 2 in the middle and left. ⑥ After passing through detection mechanism 1 4. Defect-free NdFeB rods will continue to be conveyed from right to left and received by the left-side rod conveyor belt 2. When the left end enters the aligned rubber mold hole and the rear end triggers the second signal of the first ranging sensor 135 (i.e., after entering and leaving the detection area), the left-side conveyor belt pauses, and the propulsion mechanism 13 starts. The propulsion rod 134 descends to a position aligned with the axis of the NdFeB rod. The second transverse platform 131 drives the propulsion rod 134 to move to the left. The pressure sensor 133 confirms that the left end of the propulsion rod 134 contacts the right end face of the NdFeB rod. Subsequently, the propulsion rod 134 moves synchronously with the left-side conveyor belt, pushing the NdFeB rod completely into the positioned mold hole of the rubber mold. After that, the propulsion... Mechanism 13 resets; ⑦ According to the program setting, the left position adjustment mechanism 9 drives the connected support mechanism 10 to move backward, so that the next mold hole in the top row of the rubber mold moves to the detection position of the left positioning mechanism 11; ⑧ After the push mechanism 13 resets, the left positioning mechanism 11 runs to the positioning detection state again. At the same time, according to the program setting, the left position adjustment mechanism 9 drives the connected support mechanism 10 to move backward, so that the next mold hole in the top row of the rubber mold moves to the detection position of the left positioning mechanism 11. As in the above "②" process, the rubber mold is precisely positioned and finely adjusted again to precisely push the next NdFeB rod. After that, the positioning mechanism 11 resets again.⑨ Simultaneously with process “⑧” above, process “③” above will be repeated once more, and the operation will be repeated as with processes “②-⑧” above, thus transferring the NdFeB rod material in the NdFeB molding die to the rubber mold; if the mold hole of the rubber mold is not yet filled with NdFeB rod material, and the NdFeB molding die is empty, the program will set the number of mold holes of the NdFeB molding die to be consistent with the number of cycles of the ejection mechanism 12. At this time, the program will control the right position adjustment mechanism 9 to reset to the initial state, and move the empty NdFeB molding die downward to the original placement position of the right mold conveyor belt 6 through the right lifting platform 7, and control the right mold conveyor belt 6 to perform another fixed operation. The conveyor system transports the next fully loaded NdFeB molding die to the mounting position of the right-side support mechanism 10, and repeats the process described in steps "①-⑧" until the rubber mold is fully loaded. In the programmed sequence, the number of mold holes in the rubber mold matches the number of cycles performed by the pushing mechanism 13. At this point, the program controls the left-side position adjustment mechanism 9 to reset to its initial state, and moves the fully loaded rubber mold downwards to the original position of the left-side mold conveyor belt 6 via the left-side lifting platform 7. The program then controls the left-side mold conveyor belt 6 to perform another fixed-distance conveyor, allowing the next empty rubber mold to reach the mounting position of the left-side support mechanism 10, and repeats the process described in steps "①-⑧" again.

[0048] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A feeding device for directional arrangement of NdFeB rods, characterized in that: The system includes a main frame (1), on which three sets of bar conveyor belts (2) are installed; a connecting frame (3) is fixedly connected to the upper right side of the main frame (1), and an installation frame (4) is fixedly connected to the upper left side of the main frame (1); legs (5) are fixedly connected to both sides of the main frame (1), and mold conveyor belts (6) are installed inside the lower side of each leg (5); a lifting platform (7) is fixedly connected to the upper side of each leg (5), and a fixing frame (8) is fixedly connected to the upper right side of the right leg (5); a position adjustment mechanism (9) is provided at the moving part of each lifting platform (7), and a support mechanism (10) is provided at each position adjustment mechanism (9). The position adjustment mechanism (9) is used to adjust the front and rear positions of the support mechanism (10) connected to it. The support mechanism (10) is used to hang and release neodymium iron boron molding molds and rubber on the mold conveyor belts (6) on both sides. The mold; a positioning mechanism (11) is provided at the middle position on the upper side of the mounting frame (4) and at the upper right position of the fixing frame (8). The positioning mechanism (11) is used to detect the position of the NdFeB molding mold and the rubber mold; a push mechanism (12) is provided on the right side of the fixing frame (8). The push mechanism (12) is used to push the NdFeB rod material in the NdFeB molding mold to the left; a push mechanism (13) is provided on the left side of the mounting frame (4). The push mechanism (13) is used to push the NdFeB rod material on the rod material conveyor belt (2) on the left side into the rubber mold; a detection mechanism (14) is provided on the left side of the connecting frame (3). The detection mechanism (14) is used to detect the defects of the NdFeB rod material on the rod material conveyor belt (2); a crushing mechanism (15) is provided on the right side of the mounting frame (4). The crushing mechanism (15) is used to crush the NdFeB rod material with defects.

2. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The position adjustment mechanism (9) includes a lifting frame (91), and a lifting frame (91) is fixedly connected to the moving part of each lifting platform (7). An electric slide rail (92) is installed at the front and rear positions on the upper side of each lifting frame (91), and the moving part of each electric slide rail (92) extends downward below the lifting frame (91). The support mechanism (10) is respectively located between the lower sides of the moving parts of the two electric slide rails (92) at each lifting frame (91).

3. The neodymium iron boron bar directional feeding device as described in claim 2, characterized in that: The carrying mechanism (10) includes a mounting frame (101). The lower side of the moving part of each electric slide rail (92) is fixedly connected to the mounting frame (101). The two mounting frames (101) below each lifting frame (91) are rotatably connected to the opposite side of the rotating drum (102). The upper left and right sides of the mounting frame (101) are equipped with drive motors (103). The output shaft of the drive motor (103) is connected to the upper end of the rotating drum (102) corresponding to the position.

4. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The positioning mechanism (11) includes a first electric push rod (111). The first electric push rod (111) is fixedly connected at the upper middle position of the mounting bracket (4) and at the upper right position of the fixing bracket (8). A camera module (112) is installed at the lower end of the telescopic part of the first electric push rod (111).

5. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The ejection mechanism (12) includes a first transverse platform (121), which is installed on the middle right side of the fixed frame (8). An ejection rod (122) is fixedly connected to the moving part of the first transverse platform (121).

6. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The propulsion mechanism (13) includes a second transverse platform (131). The second transverse platform (131) is fixedly connected to the upper left side of the mounting frame (4). A second electric push rod (132) is fixedly connected to the moving part of the second transverse platform (131). A pressure sensor (133) is installed at the lower end of the telescopic part of the second electric push rod (132). A push rod (134) is fixedly connected to the left side of the detection surface of the pressure sensor (133). A first distance sensor (135) is fixedly connected to the left side of the mounting frame (4).

7. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The detection mechanism (14) includes an electric circular slide rail (141). An electric circular slide rail (141) is installed on the left side of the connecting frame (3). A rotating ring (142) is fixedly connected to the left side of the rotating part of the electric circular slide rail (141). Scanning probe modules (143) are installed at the front and rear positions on the left side of the rotating ring (142). A second ranging sensor (144) is installed in the middle of the upper side of the connecting frame (3).

8. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: The crushing mechanism (15) includes a third electric push rod (151). The third electric push rod (151) is installed on the upper right side of the mounting frame (4). The lower end of the telescopic part of the third electric push rod (151) is fixedly connected to a protective frame (152). The crushing wheel (153) is installed inside the protective frame (152).

9. The neodymium iron boron bar directional feeding device as described in claim 1, characterized in that: It also includes an airbag layer (16), which is evenly distributed at the bar conveyor belt (2).

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