Bonded neodymium iron boron warm pressing equipment and process

Abstract

The invention discloses a bonded neodymium iron boron warm pressing device and process, and relates to the technical field of neodymium iron boron magnet machining, the bonded neodymium iron boron warm pressing device comprises a mounting table and a mounting shaft rotationally connected to the mounting table, a plurality of mounting plates and forming mechanisms are fixedly connected to the mounting shaft, and the forming mechanisms are arranged on the mounting plates. Bonding neodymium iron boron powder raw materials are quantitatively added to a lower die block in the forming mechanism through a powder conveyor, then a mounting plate and the forming mechanism are driven to rotate through a driving mechanism, then warm-pressing forming is conducted on the fed powder through a stamping water supply mechanism on the forming mechanism, and after warm-pressing forming is completed, the stamping water supply mechanism is used for stamping the powder. The cooling mechanism and the trowelling and fixing mechanism are matched to demold the formed magnet, and the first transmission mechanism on the forming mechanism is matched to drive the lower module to turn over and discharge, so that automatic forming processing of the neodymium-iron-boron magnet is realized, and the forming processing efficiency of the neodymium-iron-boron magnet is improved.

Description

Technical Field

[0001] The invention relates to the technical field of NdFeB magnet processing, and in particular to bonding NdFeB warm pressing equipment and a process. Background Art

[0002] Neodymium iron boron magnets use abundant and cheap neodymium to replace rare and expensive cobalt to manufacture rare earth permanent magnets, which not only greatly improves the magnetic properties, but also greatly reduces the dependence on cobalt. Due to the significant reduction in costs, it is possible to mass-produce and widely use rare earth permanent magnets. Neodymium iron boron permanent magnets have higher remanence, coercive force, magnetic energy product, and good dynamic recovery. They are one of the most powerful magnetic materials found in the world. Their magnetic properties are several to dozens of times greater than those of widely used ferrite permanent magnets, and are nearly twice as high as the first and second generation rare earth magnets (Samarium Cobalt permanent magnets). Due to its high performance-price ratio, it is becoming an ideal material for manufacturing high-performance, small-volume, and light-weight magnetic functional devices, and is gradually replacing the position of traditional permanent magnets in various industry applications.

[0003] In the production process of the existing bonded NdFeB magnets, it is necessary to fully mix the NdFeB powder and the adhesive powder through a mixing mixer. After the mixing is completed, the bonded NdFeB powder is manually placed in a forming lower mold, and then the lower mold is placed in a heating furnace for heating. After the heating is completed, the lower mold is taken out and placed on top of the stamping upper mold for stamping and forming. After the forming is completed, it is manually demolded and taken out. The operation is relatively complicated, resulting in a low degree of automation in the stamping forming of the NdFeB magnets, resulting in a low processing efficiency of the NdFeB powder magnets. Summary of the invention

[0004] The purpose of the present invention is to provide a bonding NdFeB warm pressing device and process to solve the shortcomings of the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions: Bonding NdFeB warm pressing equipment, including: A mounting table and a mounting shaft rotatably connected to the mounting table, wherein a plurality of mounting plates are fixedly connected to the mounting shaft, and an outer surface of the mounting shaft is transmission-connected to a driving mechanism connected to the mounting table, and the driving mechanism drives the mounting shaft to rotate; A molding mechanism, the molding mechanism is arranged on the mounting plate, and the molding mechanism is used for performing warm pressing molding on the bonded NdFeB powder; A cooling mechanism is arranged on the mounting table and is used for cooling and unloading the magnet after warm pressing.

[0006] As a further solution of the present invention: the forming mechanism comprises a mounting frame fixedly connected to the mounting plate, two transmission shafts are rotatably connected in the mounting frame, the outer surface of the transmission shaft is transmission-connected with a first transmission mechanism connected to the mounting frame, the first transmission mechanism is used to drive the transmission shaft to rotate, a mounting block is fixedly connected between the two transmission shafts, a transmission pipe is rotatably connected to the mounting block, the outer surface of the transmission pipe is transmission-connected with a second transmission mechanism connected to the mounting block, the second transmission mechanism is used to drive the transmission pipe to rotate, a plurality of transmission plates are fixedly connected to the outer surface of the transmission pipe, a forming frame is fixedly connected to the transmission plate by bolts, a lower module is fixedly connected in the forming frame, a water trough is provided on the lower module, and a water inlet pipe and a water outlet pipe threadedly connected to the forming frame are threadedly connected in the water trough; The transmission tube is connected to a feed smoothing and fixing mechanism, which is used to clean and smooth the excess material fed to the lower module and fix the formed magnet. The mounting table is provided with a stamping water supply mechanism connected to the transmission tube, which is used to stamp and form the powder entering the lower module and to heat the lower module with water during the stamping process.

[0007] As a further solution of the present invention: the stamping water supply mechanism includes a first support frame fixedly connected to the mounting platform, a first electric hydraulic rod is fixedly connected in the first support frame, the bottom of the first electric hydraulic rod is fixedly connected to the first mounting plate, a plurality of transmission rods are fixedly connected to the top of the first mounting plate, the bottom end of the transmission rod is fixedly connected to the stamping block, a heating water tank is fixedly connected to the mounting platform, a first water pump is fixedly connected to one side of the heating water tank through a pipeline, an output end of the first water pump is fixedly connected to a first hose through a pipeline, one end of the first hose is fixedly connected to a first water supply pipe fixedly connected to the first mounting plate, and the top end of the transmission pipe is rotatably connected to the first connecting pipe. The first connecting pipe is fixedly connected to a first connecting plate on one side opposite to the first water supply pipe, a rubber sealing pad is fixedly connected to the first connecting plate on the first connecting pipe, a second connecting pipe is fixedly connected inside the transmission pipe, a one-way valve is provided on the second connecting pipe, a third connecting pipe fixedly connected to the water inlet pipe is fixedly connected to the outer surface of the transmission pipe, a one-way valve is provided on the third connecting pipe, one end of the water outlet pipe is fixedly connected to a fourth connecting pipe fixedly connected to the transmission pipe, a first electric telescopic rod is fixedly connected inside the transmission pipe, one end of the first electric telescopic rod is fixedly connected to an extrusion plate slidably connected to the transmission pipe, and a first water inlet funnel is fixedly connected to the top of the heating water tank.

[0008] As a further solution of the present invention: the feed smoothing mechanism includes a transmission ring rotatably connected to the transmission tube, a plurality of smoothing fixing rods are fixedly connected to the outer surface of the transmission ring, the outer surface of the transmission tube is fixedly connected to the first transmission motor via a connecting plate, the output end of the first transmission motor is fixedly connected to the first rotating shaft via a coupling, the outer surface of the first rotating shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshingly connected with a second gear fixedly sleeved with the transmission ring.

[0009] As a further solution of the present invention: the first transmission mechanism includes a second electric telescopic rod fixedly connected to the mounting frame, one end of the second electric telescopic rod is fixedly connected to a transmission rack, and one side of the transmission rack is meshedly connected to a transmission gear fixedly sleeved on the transmission shaft.

[0010] As a further solution of the present invention: the second transmission mechanism includes a second transmission motor fixedly connected to the mounting block, the output end of the second transmission motor is fixedly connected to the second rotating shaft through a coupling, the outer surface of the second rotating shaft is fixedly sleeved with a third gear, and the outer surface of the third gear is meshingly connected with a fourth gear fixedly sleeved with a transmission tube.

[0011] As a further solution of the present invention: the cooling mechanism includes a second support frame fixedly connected to the mounting table, a second electric hydraulic rod is fixedly connected in the second support frame, the bottom end of the second electric hydraulic rod is fixedly connected to the second mounting plate, the second mounting plate is fixedly connected to a second water supply pipe, the bottom end of the second water supply pipe is fixedly connected to a second connecting plate, one side of the second connecting plate is fixedly connected to a rubber sealing pad, a water cooler is fixedly connected to the mounting table, one side of the water cooler is fixedly connected to a second water pump through a pipeline, the output end of the second water pump is fixedly connected to a second hose fixedly connected to the second water supply pipe through a pipeline, and the top of the water cooler is fixedly connected to a second water inlet funnel.

[0012] As a further solution of the present invention: the driving mechanism includes a driving motor fixedly connected to the mounting platform, the output end of the driving motor is fixedly connected to the driving shaft through a coupling, the outer surface of the driving shaft is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshingly connected with a second driving gear fixedly sleeved with the mounting shaft.

[0013] As a further solution of the present invention: a belt conveyor is fixedly connected to the mounting platform.

[0014] The bonding NdFeB warm pressing process includes the following steps: Step 1: Put the NdFeB raw material powder and the adhesive powder into a mixer, and then mix the adhesive and the NdFeB raw material with the mixer; Step 2: The powder mixed in step 1 is passed into a powder conveyor, and then the powder conveyor conveys the powder quantitatively to the bonding NdFeB warm pressing equipment; Step 3: Start the bonding NdFeB warm pressing equipment, and then use the bonding NdFeB warm pressing equipment to perform warm pressing molding on the powder delivered in step 2 to obtain a NdFeB magnet.

[0015] Beneficial effects of the present invention: (1) The bonded NdFeB powder raw material is quantitatively added to the lower module of the molding mechanism through a powder conveyor, and then the mounting plate and the molding mechanism are driven to rotate through a driving mechanism, and then the powder after loading is warm-pressed and molded through a stamping and water supply mechanism on the molding mechanism. After the warm-pressing and molding is completed, the molded magnet is demolded through the cooperation of a cooling mechanism and a smoothing and fixing mechanism, and then the lower module is driven to flip and unload through the cooperation of a first transmission mechanism on the molding mechanism, thereby realizing the automated molding of the NdFeB magnet and improving the molding efficiency of the NdFeB magnet.

[0016] (2) By adding a quantitative amount of bonding NdFeB powder raw material to the lower module, and then driving the transmission tube to rotate back and forth through the second transmission mechanism, the transmission tube drives the transmission plate, the forming frame and the lower module to shake back and forth, so that the powder can fully enter the lower mold body, and then drive the smoothing fixed rod to rotate, the smoothing fixed rod smoothes the excess powder on the top of the lower module, thereby realizing the full automatic feeding of the magnet forming bonding NdFeB powder, and improving the feeding efficiency and feeding effect of the bonding NdFeB powder.

[0017] (3) The bonding NdFeB powder in the lower module is stamped and formed by the punching block on the punching water supply mechanism. At the same time, during the stamping and forming, hot water is circulated into the lower module to circulate and heat the lower module, so that the adhesive in the bonding NdFeB powder is heated and melted, and then penetrates into the bonding NdFeB powder under the action of the punching block pressure, so that the adhesive and the NdFeB powder are fully bonded, which greatly improves the adhesion between the NdFeB powder and further improves the quality of the magnet after molding. At the same time, after the warm pressing molding, the first driving telescopic rod drives the movement of the extrusion plate, so that the warm water in the water tank of the lower module can be automatically discharged into the heating water tank, which is convenient for the reuse of the warm water and also convenient for the subsequent cooling of the lower module.

[0018] (4) After the warm pressing forming is completed, the lower module is driven to move to the bottom of the cooling mechanism, and then cold water is circulated into the water tank in the lower module through the cooling mechanism to cool the lower module, so that the magnet formed in the lower module is quickly cooled, and the adhesive is quickly solidified. At the same time, the formed magnet shrinks under the physical effect of thermal expansion and contraction. At this time, the formed magnet and the lower mold body are no longer in contact, which is convenient for subsequent demolding. Then, the smoothing fixing rod is driven to move to the top of the lower module, and then the mounting block and the transmission tube are driven to rotate through the first transmission mechanism, thereby driving the lower module to flip, and then the smoothing fixing rod is rotated so that it no longer blocks the magnet. Then the formed magnet falls onto the belt conveyor for transportation out, thereby realizing the automatic demolding and unloading of the formed magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a first stereogram of the external structure of the present invention; Figure 2 is a second stereoscopic diagram of the external structure of the present invention; Figure 3 is a third stereogram of the external structure of the present invention; Figure 4 It is a first stereoscopic diagram of the external structure of the molding mechanism of the present invention; Figure 5 is a second stereoscopic diagram of the external structure of the molding mechanism of the present invention; Figure 6 It is an exploded view of the forming frame and the lower module of the present invention; Figure 7 This is a front view of the internal structure of the transmission tube of the present invention; Figure 8 The present invention Figure 1 A is an enlarged view of the middle image.

[0021] In the figure: 1, mounting table; 2, mounting shaft; 3, mounting plate; 4, belt conveyor; 11, mounting frame; 12, transmission shaft; 13, mounting block; 14, transmission pipe; 15, transmission plate; 16, forming frame; 17, lower module; 18, water tank; 19, water inlet pipe; 190, water outlet pipe; 21, first support frame; 22, first electric hydraulic rod; 23, first mounting plate; 24, transmission rod; 25, stamping block; 26, heating water tank; 27, first water pump; 28, first hose; 29, first water supply pipe; 290, first connecting pipe; 291, first connecting plate; 292, second connecting pipe; 293, third connecting pipe; 294, fourth connecting pipe; 295, first water inlet funnel; 296, first An electric telescopic rod; 297, an extrusion plate; 31, a transmission ring; 32, a smoothing fixing rod; 33, a first transmission motor; 34, a first rotating shaft; 35, a first gear; 36, a second gear; 41, a second electric telescopic rod; 42, a transmission rack; 43, a transmission gear; 51, a second transmission motor; 52, a second rotating shaft; 53, a third gear; 54, a fourth gear; 61, a second supporting frame; 62, a second electric hydraulic rod; 63, a second mounting plate; 64, a second water supply pipe; 65, a second connecting plate; 66, a water cooler; 67, a second water pump; 68, a second hose; 69, a second water inlet funnel; 71, a driving motor; 72, a driving shaft; 73, a first driving gear; 74, a second driving gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1 See also Figure 1-Figure 8As shown, the present invention is a bonding NdFeB warm pressing device, including a mounting platform 1, a mounting shaft 2 is rotatably connected to the mounting platform 1, a plurality of mounting plates 3 are fixedly connected to the mounting shaft 2, the outer surface of the mounting shaft 2 is transmission-connected to a driving mechanism connected to the mounting platform 1, the driving mechanism is used to drive the mounting shaft 2 to rotate, the driving mechanism includes a driving motor 71 fixedly connected to the mounting platform 1, the output end of the driving motor 71 is fixedly connected to the driving shaft 72 through a coupling, the outer surface of the driving shaft 72 is fixedly sleeved with a first driving gear 73, the outer surface of the first driving gear 73 is meshingly connected to the mounting shaft 2 is fixedly sleeved with the second driving gear 74, and the driving motor 71 is controlled by the PLC programming program, which can control the driving motor 71 to rotate forward and reverse and the rotation angle, and the driving motor 71 drives the driving shaft 72 to rotate, and the driving shaft 72 drives the mounting shaft 2 to rotate through the first driving gear 73 and the second driving gear 74. A forming mechanism is arranged on the mounting plate 3, and the forming mechanism is used to perform warm pressing forming on the bonded NdFeB powder. A cooling mechanism is arranged on the mounting table 1, and the cooling mechanism is used to cool and discharge the magnet after warm pressing forming. A belt conveyor 4 is fixedly connected to the mounting table 1.

[0024] The bonded NdFeB powder raw material is quantitatively added to the molding mechanism through a powder conveyor. The powder conveyor is a prior art, so it will not be described in detail here. Then, the driving mechanism drives the installation shaft 2 to rotate, the installation shaft 2 drives the installation plate 3 to rotate, and the installation plate 3 drives the molding mechanism to rotate. Then, the molding mechanism punches the bonded NdFeB powder entering the molding mechanism, so that it is warm-pressed and molded into a NdFeB magnet at a temperature of 80°. After molding, the driving mechanism drives the installation shaft 2 to rotate, and the installation shaft 2 drives the molding mechanism to rotate to the cooling mechanism. Then, the cooling mechanism cools the molded magnet, and then demolds and unloads the material, thereby realizing automated molding processing of the magnet, greatly improving the processing efficiency of the magnet.

[0025] Embodiment 2 Based on Example 1, please refer to Figure 1 , Figure 4 and Figure 5 and Figure 6As shown, the molding mechanism includes a mounting frame 11 fixedly connected to the mounting plate 3, and two transmission shafts 12 are rotatably connected in the mounting frame 11. The outer surface of the transmission shaft 12 is transmission-connected with a first transmission mechanism connected to the mounting frame 11, and the first transmission mechanism is used to drive the transmission shaft 12 to rotate. The first transmission mechanism includes a second electric telescopic rod 41 fixedly connected to the mounting frame 11, one end of the second electric telescopic rod 41 is fixedly connected with a transmission rack 42, and one side of the transmission rack 42 is meshingly connected with a transmission gear 43 fixedly sleeved with the transmission shaft 12. The transmission rack 42 is driven to move by the second electric telescopic rod 41, and the transmission rack 42 drives the transmission gear 43 to rotate, and the transmission gear 43 drives the transmission shaft 12 to rotate. A mounting block 13 is fixedly connected between the two transmission shafts 12, and a transmission pipe 14 is rotatably connected to the mounting block 13. The outer surface of the transmission pipe 14 is transmission-connected with a second transmission mechanism connected to the mounting block 13, and the second transmission mechanism is used to drive the transmission pipe 1 4 is rotated, the second transmission mechanism includes a second transmission motor 51 fixedly connected to the mounting block 13, the second transmission motor 51 is controlled by a PLC programming program, and the second transmission motor 51 can be controlled to rotate forward and reverse and rotate at an angle, the output end of the second transmission motor 51 is fixedly connected to a second rotating shaft 52 through a coupling, the outer surface of the second rotating shaft 52 is fixedly sleeved with a third gear 53, the outer surface of the third gear 53 is meshedly connected with a fourth gear 54 fixedly sleeved with the transmission tube 14, the second rotating shaft 52 is driven to rotate by the second transmission motor 51, the second rotating shaft 52 drives the transmission tube 14 to rotate through the third gear 53 and the fourth gear 54, the outer surface of the transmission tube 14 is fixedly connected with a plurality of transmission plates 15, the transmission plate 15 is fixedly connected with a forming frame 16 by bolts, the forming frame 16 is fixedly connected with a lower module 17, the lower module 17 is provided with a water tank 18, the water tank 18 is threadedly connected with a water inlet pipe 19 and a water outlet pipe 190 threadedly connected with the forming frame 16; A stamping water supply mechanism connected to the transmission pipe 14 is provided on the mounting platform 1 , and the stamping water supply mechanism is used to stamp and form the powder entering the lower module 17 , and at the same time, to heat the lower module 17 with water during the stamping process.

[0026] The transmission tube 14 is transmission-connected with a feed smoothing fixing mechanism, which is used to clean and smooth the excess material fed to the lower module 17, and to fix the formed magnet at the same time. The feed smoothing mechanism includes a transmission ring 31 rotatably connected to the transmission tube 14, and a plurality of smoothing fixing rods 32 are fixedly connected to the outer surface of the transmission ring 31. The outer surface of the transmission tube 14 is fixedly connected to a first transmission motor 33 through a connecting plate. The first transmission motor 33 is controlled by a PLC programming program, and can control the first transmission motor 33 to rotate forward and backward and rotate at an angle. The output end of the first transmission motor 33 is fixedly connected to a first rotating shaft 34 through a coupling, and a first gear 35 is fixedly sleeved on the outer surface of the first rotating shaft 34, and a second gear 36 fixedly sleeved on the outer surface of the first gear 35 is meshingly connected to the transmission ring 31.

[0027] The bonding NdFeB powder is quantitatively conveyed to the lower module 17 on the forming frame 16 by the powder conveyor. At the same time, the transmission tube 14 is driven by the second transmission mechanism to rotate back and forth during feeding. The transmission tube 14 drives the forming frame 16 to shake back and forth through the transmission plate 15, so that the bonding NdFeB powder can fully enter the lower module 17. Then the second transmission mechanism drives the transmission tube 14 to rotate, so that the next forming frame 16 enters the discharge port of the powder conveyor to feed the lower module 17 in the forming frame 16, and the lower module 17 in each forming frame 16 is filled with bonding NdFeB powder in turn. After each lower module 17 is filled with bonded NdFeB powder, the first rotating shaft 34 is driven to rotate by the first transmission motor 33, and the first rotating shaft 34 drives the second gear 36 and the transmission ring 31 to rotate through the first gear 35, and the transmission ring 31 drives the smoothing fixing rod 32 to rotate, and the smoothing fixing rod 32 smoothes the excess powder on the top of the lower module 17, and then drives the installation shaft 2 to rotate through the driving mechanism, and the installation shaft 2 drives the installation plate 3 to rotate, thereby driving the multiple lower modules 17 after loading to rotate to the bottom of the stamping water supply mechanism for warm pressing forming, thereby realizing the automatic loading of magnet forming bonded NdFeB powder.

[0028] Embodiment 3 Based on Example 2, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the stamping water supply mechanism includes a first support frame 21 fixedly connected to the mounting platform 1, a first electric hydraulic rod 22 is fixedly connected in the first support frame 21, a first mounting plate 23 is fixedly connected to the bottom of the first electric hydraulic rod 22, a plurality of transmission rods 24 are fixedly connected to the top of the first mounting plate 23, a stamping block 25 is fixedly connected to the bottom end of the transmission rod 24, a heating water tank 26 is fixedly connected to the mounting platform 1, a first water pump 27 is fixedly connected to one side of the heating water tank 26 through a pipeline, a first hose 28 is fixedly connected to the output end of the first water pump 27 through a pipeline, one end of the first hose 28 is fixedly connected to a first water supply pipe 29 fixedly connected to the first mounting plate 23, a first connecting pipe 290 is rotatably connected to the top of the transmission pipe 14, and the first connecting pipe 290 is connected to the first water supply pipe 290. The first connecting plate 291 is fixedly connected to the opposite side of the tube 29, a rubber sealing pad is fixedly connected to the first connecting plate 291 on the first connecting tube 290, a second connecting tube 292 is fixedly connected to the transmission tube 14, a one-way valve is arranged on the second connecting tube 292, a third connecting tube 293 fixedly connected to the water inlet pipe 19 is fixedly connected to the outer surface of the transmission tube 14, a one-way valve is arranged on the third connecting tube 293, one end of the water outlet pipe 190 is fixedly connected to the fourth connecting tube 294 fixedly connected to the transmission tube 14, a first electric telescopic rod 296 is fixedly connected to the transmission tube 14, one end of the first electric telescopic rod 296 is fixedly connected to the extrusion plate 297 slidably connected to the transmission tube 14, and a first water inlet funnel 295 is fixedly connected to the top of the heating water tank 26.

[0029] After the lower module 17 is loaded, the driving mechanism drives the mounting shaft 2 to rotate, and the mounting shaft 2 drives the mounting plate 3 to rotate, so that the lower module 17 after loading is rotated to the bottom of the stamping water supply mechanism, and then the first mounting plate 23 is driven downward by the first electric hydraulic rod 22, and the first mounting plate 23 drives the transmission rod 24 and the stamping block 25 to move downward to extrude the powder in the lower module 17. At the same time, during the molding process, the first water supply pipe 29 is pressed against the first connecting pipe 290, and the first connecting pipe 290 is connected to the first water supply pipe 29 through the first connecting plate 291, and then the heating water tank 2 is heated by the first water pump 27. 6 is pumped into the first hose 28 through the pipeline, and then the first hose 28 passes the water into the transmission pipe 14 through the first water supply pipe 29 and the first connecting pipe 290, and then the second connecting pipe 292 in the transmission pipe 14 passes the water into the transmission pipe 14 through the one-way valve, and the transmission pipe 14 passes the water into the water inlet pipe 19 through the third connecting pipe 293, and the water inlet pipe 19 passes the water into the water tank 18 in the lower module 17 to heat the lower module 17, and the lower module 17 heats the powder, and then the heated water flows into the water outlet pipe 190 through the water tank 18, and then the water outlet pipe 190 passes through the fourth connecting pipe 2 94 passes water into the transmission pipe 14, and then is discharged into the first water inlet funnel 295 through the transmission pipe 14, thereby entering the heating water tank 26, and then the water is heated again by the heating water tank 26, and then pumped out, so as to realize the circulation heating of the lower module 17, so that the adhesive in the bonding NdFeB powder is heated and melted, and then penetrates into the bonding NdFeB powder under the action of the pressure of the punching block 25, so that the adhesive and the NdFeB powder are fully bonded, which greatly improves the adhesion between the NdFeB powder and further improves the quality of the formed magnet. When the warm pressing forming is completed, the first electric hydraulic rod 22 then drives the second A mounting plate 23 moves upward, causing the stamping block 25 to detach from the lower module 17. At the same time, the first water supply pipe 29 detaches from the first connecting pipe 290. At this time, the extrusion plate 297 is driven downward by the first electric telescopic rod 296, and the transmission pipe 14 inhales air through the one-way valve on the second connecting pipe 292. Then the first electric telescopic rod 296 drives the extrusion plate 297 to move upward. At this time, the gas is discharged through the one-way valve on the third connecting pipe 293, and the gas enters the water tank 18 in the lower module 17, pushing the water in the water tank 18 out, and then the hot water in the water tank 18 is automatically discharged through the fourth connecting pipe 294 to facilitate subsequent cooling.

[0030] Embodiment 4 Based on Example 3, please refer to Figure 3 Figure 4 and Figure 6As shown, the cooling mechanism includes a second support frame 61 fixedly connected to the mounting platform 1, a second electric hydraulic rod 62 is fixedly connected inside the second support frame 61, a second mounting plate 63 is fixedly connected to the bottom end of the second electric hydraulic rod 62, a second water supply pipe 64 is fixedly connected to the second mounting plate 63, a second connecting plate 65 is fixedly connected to the bottom end of the second water supply pipe 64, a rubber sealing pad is fixedly connected to one side of the second connecting plate 65, a water cooler 66 is fixedly connected to the mounting platform 1, a second water pump 67 is fixedly connected to one side of the water cooler 66 through a pipeline, an output end of the second water pump 67 is fixedly connected to a second hose 68 fixedly connected to the second water supply pipe 64 through a pipeline, and a second water inlet funnel 69 is fixedly connected to the top of the water cooler 66.

[0031] After warm pressing and forming, the driving mechanism then drives the installation shaft 2 to rotate, so that the formed lower module 17 rotates to the bottom of the cooling mechanism, and then the second electric hydraulic rod 62 drives the second installation plate 63 to move downward, and the second installation plate 63 drives the second water supply pipe 64 to move downward, and the second water supply pipe 64 is connected to the first connecting pipe 290, and then the second water pump 67 passes the water in the water cooler 66 into the second water supply pipe 64 through the second hose 68, and then the second water supply pipe 64 supplies water to the first connecting pipe 290, and the cooling water passes through the transmission pipe 14. The second connecting pipe 292 and the third connecting pipe 293 enter the water tank 18 on the lower module 17 to cool the lower module 17, so that the magnet formed in the lower module 17 is quickly cooled, and the adhesive is quickly solidified. At the same time, the formed magnet shrinks under the physical effect of thermal expansion and contraction. At this time, the formed magnet and the lower mold body 17 are no longer in contact, which is convenient for subsequent demoulding. Then, the smoothing fixing rod 32 is driven by the smoothing fixing mechanism to rotate to the upper part of the lower module 17, and then the installation shaft 2 is driven by the driving mechanism to rotate. Thereby, the lower module 17 is driven to rotate to the top of the belt conveyor 4, and then the transmission shaft 12 is driven to rotate through the first transmission mechanism, and the transmission shaft 12 drives the mounting block 13 and the transmission tube 14 to flip over. At this time, the smoothing fixing rod 32 blocks the formed magnet in the lower module 17, causing the lower module to flip 180°, and then drives the smoothing fixing rod 32 to rotate so that it no longer blocks the magnet. Subsequently, the formed magnet falls onto the belt conveyor 4 and is transported out, thereby realizing automatic demolding and unloading of the formed magnet.

[0032] Embodiment 5 The bonding NdFeB warm pressing process includes the following steps: Step 1: Put the NdFeB raw material powder and the adhesive powder into a mixer, and then mix the adhesive and the NdFeB raw material with the mixer; Step 2: The powder mixed in step 1 is passed into a powder conveyor, and then the powder conveyor conveys the powder quantitatively to the bonding NdFeB warm pressing equipment; Step 3: Start the bonding NdFeB warm pressing equipment, and then use the bonding NdFeB warm pressing equipment to perform warm pressing molding on the powder delivered in step 2 to obtain a NdFeB magnet.

[0033] The working principle of the present invention is as follows: the bonded NdFeB powder raw material is quantitatively added into the molding mechanism through a powder conveyor. The powder conveyor is a prior art, so no further elaboration is made here. Then, the driving mechanism drives the installation shaft 2 to rotate, the installation shaft 2 drives the installation plate 3 to rotate, the installation plate 3 drives the molding mechanism to rotate, and then the molding mechanism punches the bonded NdFeB powder entering the molding mechanism, so that it is warm-pressed and molded into a NdFeB magnet at a temperature of 80°. After molding, the driving mechanism drives the installation shaft 2 to rotate, the installation shaft 2 drives the molding mechanism to rotate to the cooling mechanism, and then the cooling mechanism cools the molded magnet, and then demolds and unloads the material, thereby realizing automated molding processing of the magnet, greatly improving the processing efficiency of the magnet.

[0034] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Bonding NdFeB warm pressing equipment, characterized in that, include: A mounting platform (1) and a mounting shaft (2) rotatably connected to the mounting platform (1), a plurality of mounting plates (3) being fixedly connected to the mounting shaft (2), an outer surface of the mounting shaft (2) being drivingly connected to a driving mechanism connected to the mounting platform (1), the driving mechanism being used to drive the mounting shaft (2) to rotate; A molding mechanism, the molding mechanism being arranged on the mounting plate (3), and the molding mechanism being used for performing warm pressing molding on the bonded NdFeB powder; A cooling mechanism is provided on the mounting platform (1), and is used for cooling and cutting the magnet after warm pressing.

2. The bonding NdFeB warm pressing equipment according to claim 1, characterized in that: The molding mechanism comprises a mounting frame (11) fixedly connected to the mounting plate (3), two transmission shafts (12) being rotatably connected inside the mounting frame (11), the outer surfaces of the transmission shafts (12) being transmission-connected to a first transmission mechanism connected to the mounting frame (11), the first transmission mechanism being used to drive the transmission shafts (12) to rotate, a mounting block (13) being fixedly connected between the two transmission shafts (12), a transmission tube (14) being rotatably connected to the mounting block (13), the outer surfaces of the transmission tubes (14) being transmission-connected to the mounting frame (11), a second transmission mechanism connected to the mounting block (13), the second transmission mechanism being used to drive the transmission tube (14) to rotate, a plurality of transmission plates (15) being fixedly connected to the outer surface of the transmission tube (14), a forming frame (16) being fixedly connected to the transmission plate (15) by bolts, a lower module (17) being fixedly connected to the inside of the forming frame (16), a water trough (18) being provided on the lower module (17), a water inlet pipe (19) and a water outlet pipe (190) being threadedly connected to the forming frame (16); The transmission tube (14) is transmission-connected with a feed smoothing and fixing mechanism, which is used to clean and smooth excess material fed to the lower module (17) and fix the formed magnets at the same time. The mounting table (1) is provided with a stamping water supply mechanism connected to the transmission tube (14), which is used to stamp and shape the powder entering the lower module (17) and to heat the lower module (17) with water during the stamping process.

3. The bonding NdFeB warm pressing equipment according to claim 2, characterized in that: The punching water supply mechanism comprises a first support frame (21) fixedly connected to the mounting platform (1); a first electric hydraulic rod (22) is fixedly connected inside the first support frame (21); a first mounting plate (23) is fixedly connected to the bottom of the first electric hydraulic rod (22); a plurality of transmission rods (24) are fixedly connected to the top of the first mounting plate (23); a punching block (25) is fixedly connected to the bottom end of the transmission rod (24); a heating water tank (26) is fixedly connected to the mounting platform (1); a first water pump (27) is fixedly connected to one side of the heating water tank (26) via a pipeline; a first hose (28) is fixedly connected to the output end of the first water pump (27) via a pipeline; one end of the first hose (28) is fixedly connected to a first water supply pipe (29) fixedly connected to the first mounting plate (23); a first connecting pipe (290) is rotatably connected to the top end of the transmission pipe (14); the first connecting pipe (290) is connected to the first The first connection plate (291) is fixedly connected to the opposite side of the water supply pipe (29), the first connection plate (291) on the first connection pipe (290) is fixedly connected to a rubber sealing pad, the transmission pipe (14) is fixedly connected to a second connection pipe (292), the second connection pipe (292) is provided with a one-way valve, the outer surface of the transmission pipe (14) is fixedly connected to a third connection pipe (293) fixedly connected to the water inlet pipe (19), the third connection pipe (293) is provided with a one-way valve, one end of the water outlet pipe (190) is fixedly connected to a fourth connection pipe (294) fixedly connected to the transmission pipe (14), the transmission pipe (14) is fixedly connected to a first electric telescopic rod (296), one end of the first electric telescopic rod (296) is fixedly connected to an extrusion plate (297) slidably connected to the transmission pipe (14), and the top of the heating water tank (26) is fixedly connected to a first water inlet funnel (295).

4. The bonding NdFeB warm pressing equipment according to claim 2, characterized in that: The feed smoothing mechanism comprises a transmission ring (31) rotatably connected to a transmission tube (14); a plurality of smoothing fixing rods (32) are fixedly connected to the outer surface of the transmission ring (31); a first transmission motor (33) is fixedly connected to the outer surface of the transmission tube (14) via a connecting plate; an output end of the first transmission motor (33) is fixedly connected to a first rotating shaft (34) via a coupling; a first gear (35) is fixedly sleeved on the outer surface of the first rotating shaft (34); and a second gear (36) fixedly sleeved on the outer surface of the first gear (35) is meshingly connected to the transmission ring (31).

5. The bonding NdFeB warm pressing equipment according to claim 2, characterized in that: The first transmission mechanism comprises a second electric telescopic rod (41) fixedly connected to the mounting frame (11), one end of the second electric telescopic rod (41) being fixedly connected to a transmission rack (42), one side of the transmission rack (42) being meshingly connected to a transmission gear (43) fixedly sleeved on the transmission shaft (12).

6. The bonding NdFeB warm pressing equipment according to claim 2, characterized in that: The second transmission mechanism comprises a second transmission motor (51) fixedly connected to the mounting block (13); an output end of the second transmission motor (51) is fixedly connected to a second rotating shaft (52) via a coupling; a third gear (53) is fixedly sleeved on an outer surface of the second rotating shaft (52); and an outer surface of the third gear (53) is meshingly connected to a fourth gear (54) fixedly sleeved on the transmission tube (14).

7. The bonding NdFeB warm pressing equipment according to claim 1, characterized in that: The cooling mechanism comprises a second support frame (61) fixedly connected to the mounting platform (1); a second electric hydraulic rod (62) is fixedly connected inside the second support frame (61); a second mounting plate (63) is fixedly connected to the bottom end of the second electric hydraulic rod (62); a second water supply pipe (64) is fixedly connected to the second mounting plate (63); a second connection plate (65) is fixedly connected to the bottom end of the second water supply pipe (64); a rubber sealing pad is fixedly connected to one side of the second connection plate (65); a water cooler (66) is fixedly connected to the mounting platform (1); a second water pump (67) is fixedly connected to one side of the water cooler (66) via a pipeline; an output end of the second water pump (67) is fixedly connected to a second hose (68) fixedly connected to the second water supply pipe (64) via a pipeline; and a second water inlet funnel (69) is fixedly connected to the top of the water cooler (66).

8. The bonding NdFeB warm pressing equipment according to claim 1, characterized in that: The drive mechanism comprises a drive motor (71) fixedly connected to the mounting platform (1); an output end of the drive motor (71) is fixedly connected to a drive shaft (72) via a coupling; a first drive gear (73) is fixedly sleeved on an outer surface of the drive shaft (72); and an outer surface of the first drive gear (73) is meshingly connected to a second drive gear (74) fixedly sleeved on the mounting shaft (2).

9. The bonding NdFeB warm pressing equipment according to claim 1, characterized in that: A belt conveyor (4) is fixedly connected to the mounting platform (1).

10. A bonding NdFeB warm pressing process, using the bonding NdFeB warm pressing equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Put the NdFeB raw material powder and the adhesive powder into a mixer, and then mix the adhesive and the NdFeB raw material with the mixer; Step 2: The powder mixed in step 1 is passed into a powder conveyor, and then the powder conveyor conveys the powder quantitatively to the bonding NdFeB warm pressing equipment; Step 3: Start the bonding NdFeB warm pressing equipment, and then use the bonding NdFeB warm pressing equipment to perform warm pressing molding on the powder delivered in step 2 to obtain a NdFeB magnet.

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