Thermal deformation equipment for rare earth permanent magnet material production and hot pressing process thereof

Abstract

The invention relates to the technical field of hot pressing machining equipment, and discloses thermal deformation equipment for rare earth permanent magnet material production and a hot pressing process thereof.The thermal deformation equipment comprises a base, the top of the base is fixedly connected with the bottom of a supporting seat, and the top, close to the left side, of the supporting seat is fixedly connected with the bottom end of a hydraulic telescopic machine; the top end of the hydraulic telescopic machine is fixedly connected with the bottom end of a linkage block, the top, close to the right side, of the supporting seat is fixedly connected with the bottom of a touch switch, the right side of the supporting seat is fixedly connected with the left side of a guide rail, and the hydraulic telescopic machine is fixedly connected with the top end of a hot pressing assembly through the linkage block. According to the thermal deformation equipment for rare earth permanent magnet material production and the hot pressing process thereof, through mutual cooperative use of the cooling assembly, the transmission assembly and the pushing assembly, the equipment can complete cooling work in time after completing thermal deformation work on a permanent magnet material, and a cooled and formed permanent magnet is lifted from the equipment after cooling is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of hot pressing equipment, and specifically to a hot deformation device for the production of rare earth permanent magnet materials and its hot pressing process. Background Art

[0002] Rare earth permanent magnet materials are permanent magnet materials based on intermetallic compounds formed by rare earth metal elements and transition metal elements. Neodymium iron boron permanent magnets are currently the permanent magnet materials with the highest magnetism, and are widely used in fields such as automobiles, air conditioners, wind power generation, national defense, and aerospace. They are important functional materials that support social progress. The main preparation methods of permanent magnets are the sintering method and the hot deformation method.

[0003] Currently, when most of the hot deformation devices for the production of rare earth permanent magnet materials on the market are in use, they cannot conveniently take out the permanent magnet from the device after the permanent magnet is formed, and it is necessary for the staff to dig out the permanent magnet from the embryo after stopping the machine. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a hot deformation device for the production of rare earth permanent magnet materials and its hot pressing process, which solves the problem that the permanent magnet cannot be conveniently taken out of the device after the permanent magnet is formed in the prior art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A hot deformation device for the production of rare earth permanent magnet materials, including a base, the top of the base is fixedly connected to the bottom of a support seat, the top of the support seat near the left side is fixedly connected to the bottom end of a hydraulic telescopic machine, the top end of the hydraulic telescopic machine is fixedly connected to the bottom end of a linkage block, the top of the support seat near the right side is fixedly connected to the bottom of a touch switch, the right side of the support seat is fixedly connected to the left side of a guide rail, the hydraulic telescopic machine is fixedly connected to the top end of a hot pressing component through the linkage block, and the outer wall of the hot pressing component is movably sleeved with a cooling component.

[0006] The bottom of the cooling component is fixedly connected to the top of the base, the inner wall of the cooling component is rotatably connected to the outer wall of a transmission component, the outer wall of the transmission component is meshed with the outer wall of a pushing component, the outer wall of the bottom of the pushing component is slidably connected to the inner wall of the guide rail, and the top of the pushing component is movably abutted against the bottom of the hot pressing component.

[0007] Preferably, the hot pressing assembly includes a hot pressing block, an electric heating block, a primary pressing chamber, a feed pipe, a deformation chamber, a limiting block, a supporting block, a return spring, a return pipe and a trigger rod. The top of the hot pressing block is fixedly connected to the bottom of the linkage block, and a heating cavity is formed in the inner wall of the hot pressing block. The electric heating block is arranged in the heating cavity and is electrically connected to the touch switch. The outer wall of the hot pressing block near the bottom is in sliding contact with the inner wall of the primary pressing chamber, and a feed pipe is arranged on the inner wall of the primary pressing chamber near the top. The bottom end of the primary pressing chamber is movably clamped with the top end of the deformation chamber, and the inner side wall of the deformation chamber is in movable contact with the outer wall of the limiting block. A fitting groove for fitting the limiting block is formed in the inner bottom wall of the deformation chamber, and one side of the limiting block is fixedly connected to the outer wall of the supporting block. The bottom end of the supporting block is fixedly connected to the top end of the return spring, and the bottom end of the return spring is fixedly connected to the inner bottom wall of the return pipe. The top end of the return pipe is fixedly connected to the bottom end of the deformation chamber, and a sliding groove for the trigger rod to slide up and down is formed in the inner wall of the return pipe. The outer wall of the trigger rod is movably inserted into the inner wall of the supporting block, and the bottom of the trigger rod is in movable contact with the top of the pushing assembly. The vertical center line of the trigger rod coincides with the vertical center line of the touch switch.

[0008] Preferably, the cooling assembly includes a water storage tank, a cooling plate, a water pump, a cooling pipe, a water storage chamber and a return pipe. The bottom of the water storage tank is fixedly connected to the top of the base, and a cooling plate is arranged inside the water storage tank. A water pump is installed on the top of the water storage tank, and the output end of the water pump is fixedly connected to one end of the cooling pipe. The cooling pipe is wound around the outer wall of the deformation chamber, and the other end of the cooling pipe is fixedly connected to the inner wall of the water storage chamber. One end of the return pipe is fixedly connected to the inner wall of the water storage chamber on the side away from the cooling pipe, and the other end of the return pipe is fixedly connected to the inner side wall of the water storage tank. The inner wall of the top of the water storage chamber is rotatably connected to the outer wall of the transmission assembly.

[0009] Preferably, the transmission assembly includes a transmission rod, an impeller, a transmission gear, a reduction gear and a reduction rod. The outer wall of the transmission rod is rotatably connected to the inner wall of the top of the water storage chamber through a mechanical seal, and the outer wall of the transmission rod at one end inside the water storage chamber is engaged with the inner wall of the impeller. The outer wall of the impeller is in sliding contact with the inner wall of the water storage chamber, and the outer wall of the transmission rod at the top outside the water storage chamber is engaged with the inner wall of the transmission gear. The outer wall of the transmission gear is engaged with the outer wall of the reduction gear, and the inner wall of the reduction gear is rotatably connected to the outer wall of the top end of the reduction rod. The bottom end of the reduction rod is fixedly connected to the top of the water storage chamber, and the outer wall of the reduction gear on the side away from the transmission gear is engaged with the outer wall of the pushing assembly.

[0010] Preferably, the pushing assembly includes a pushing rack, a guiding block, a pushing rod, a deflecting strip, a connecting block, a fixing block, a compression spring and a pushing block. The outer wall of the pushing rack is meshed with the outer wall of the reduction gear, and a guiding block is fixedly installed directly below the pushing rack. The outer wall of the bottom of the guiding block is slidably connected to the inner wall of the guiding rail, and the top of the pushing rack is fixedly connected to the bottom end of the pushing rod. The outer wall of the top end of the pushing rod is rotatably connected to the inner wall of one side of the deflecting strip, and the inner wall of the other side of the deflecting strip is rotatably connected to the outer wall of the connecting block. The outer wall of the connecting block is slidably connected to the inner wall of the fixing block, and the bottom of the fixing block is fixedly connected to the top of the support seat. A compression spring is sleeved on the outer wall of the connecting block outside the fixing block, and one end of the compression spring is movably abutted against the outer wall of the fixing block. One side of the connecting block is fixedly connected to the outer wall of the pushing block, and the other end of the compression spring is movably abutted against the outer wall of the pushing block. The top of the pushing block is movably abutted against the bottom of the trigger rod.

[0011] Preferably, the number of the cooling plates is two, and the two cooling plates are symmetrically arranged with respect to the vertical bisector of the water storage tank.

[0012] Preferably, the pushing block is designed as a trapezoidal block, and the inclined surface of the pushing block is located on one side of the reset pipe.

[0013] Preferably, the connecting block includes a front connecting block, a linkage rod and a sliding block. The top of the front connecting block is rotatably connected to the outer wall of the deflecting strip through a rod body, the front connecting block is fixedly connected to the sliding block through the linkage rod, and a compression spring is sleeved on the outer wall of the sliding block outside the fixing block.

[0014] Preferably, a sliding cavity is formed in the inner wall of the fixing block, and the inner wall of the sliding cavity is slidably connected to the outer wall of the connecting block.

[0015] Preferably, the usage method of the hot deformation equipment produced by the rare earth permanent magnet material includes the following steps: S1: After the polished permanent magnet material is made into powder and mixed with other materials, it is injected into the primary pressing chamber through the feeding pipe. The hydraulic telescopic machine is started, and the hydraulic telescopic machine slowly descends and drives the hot pressing block to move downward through the linkage block. After the air in the primary pressing chamber is discharged from the feeding pipe, the mixed material is extruded to make the mixed material compact and heated. At this time, the support block provides a corresponding supporting force through the abutment of the trigger rod and the pushing block. When the hydraulic telescopic machine continues to press down and the pressure received by the trigger rod and the pushing block breaks through the critical value, the pushing block moves backward under the force. After the trigger rod passes through the pushing block, the pushing block resets under the telescopic action of the compression spring and presses the trigger rod directly below the pushing block. At this time, the trigger rod abuts against the touch switch, causing the electric heating block to start working, and continue to heat up to 700 - 800 degrees for hot deformation to make the mixed material start to melt.

[0016] S2: The support block moves downward following the trigger rod, driving the limit block to move into the fitting groove at the bottom of the deformation chamber. The melted mixture is extruded by the hot pressing block into the gap between the hot pressing block and the deformation chamber.

[0017] S3: Start the water pump. The water pump pumps the coolant in the water storage tank into the cooling pipe. The cooling pipe cools the deformation chamber from the outer wall, enabling the formed thermally deformed magnet to cool down quickly. At the same time, start the hydraulic telescopic machine to reverse and reset the hot pressing block. After passing through the cooling pipe, the coolant enters the water storage bin and impacts the impeller. The impeller drives the transmission rod to rotate, the transmission rod drives the transmission gear to rotate. After being decelerated by the reduction gear, the transmission gear drives the push rack to start moving. The push rack pushes the connecting block to move to both sides through the deflection bar, causing the push block to disengage from the top of the trigger rod. The trigger rod starts to rise under the telescopic force of the return spring. The trigger rod drives the support block to move upward. The support block pushes the formed thermally deformed magnet out of the deformation chamber, unlocking the primary pressing chamber and the deformation chamber. The primary pressing chamber is moved upward by the hydraulic telescopic machine, allowing the staff to take out the formed thermally deformed magnet.

[0018] The present invention provides a thermal deformation device for the production of rare earth permanent magnet materials and its hot pressing process. Compared with the prior art, it has the following beneficial effects: (1) Through the mutual cooperation of the cooling component, transmission component, and pushing component, the thermal deformation device for the production of rare earth permanent magnet materials and its hot pressing process can complete the cooling work in a timely manner after finishing the thermal deformation work of the permanent magnet material, and lift the cooled and formed permanent magnet out of the device after cooling, bringing convenience to the picking operation of the staff.

[0019] (2) Through the mutual cooperation of the hot pressing component and the cooling component, after the permanent magnet material is mixed after quenching and powdering and injected into the hot pressing component, the cooling work can be completed in a timely manner after the hot pressing operation, bringing convenience to the processing of the permanent magnet material.

[0020] (3) Through the mutual cooperation of the cooling component, transmission component, and pushing component, the impeller is driven to rotate by the coolant to complete the transmission operation, reducing energy consumption and further reducing the processing consumption of rare earth permanent magnet materials. Description of the Drawings

[0021] Figure 1 is the schematic diagram of the overall structure of the present invention; Figure 2 is the cross-sectional view of the overall structure of the present invention; Figure 3 is the schematic diagram of a partial structure of the present invention; Figure 4Schematic diagram of the connection structure between the cooling component and the transmission component of the present invention; Figure 5 Schematic diagram of the connection structure between the hot pressing component and the pushing component of the present invention; Figure 6 Schematic diagram of the structure of the pushing component of the present invention.

[0022] In the figure: 1, base; 2, support base; 3, hydraulic telescopic machine; 4, linkage block; 5, hot pressing component; 501, hot pressing block; 502, electric heating block; 503, primary pressing bin; 504, feed pipe; 505, deformation bin; 506, limit block; 507, support block; 508, return spring; 509, return pipe; 510, trigger rod; 6, cooling component; 601, water storage tank; 602, cooling plate; 603, water pump; 604, cooling pipe; 605, water storage bin; 606, return pipe; 7, transmission component; 701, transmission rod; 702, impeller; 703, transmission gear; 704, reduction gear; 705, reduction rod; 8, pushing component; 801, pushing rack; 802, guiding block; 803, pushing rod; 804, deflection bar; 805, connecting block; 806, fixing block; 807, compression spring; 808, pushing block; 9, touch switch; 10, guiding rail. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 6 , a hot deformation device for rare earth permanent magnet materials, including a base 1, the top of the base 1 is fixedly connected to the bottom of the support base 2, the top of the support base 2 near the left side is fixedly connected to the bottom end of the hydraulic telescopic machine 3, the top end of the hydraulic telescopic machine 3 is fixedly connected to the bottom end of the linkage block 4, the top of the support base 2 near the right side is fixedly connected to the bottom of the touch switch 9, the right side of the support base 2 is fixedly connected to the left side of the guiding rail 10, the hydraulic telescopic machine 3 is fixedly connected to the top end of the hot pressing component 5 through the linkage block 4, and the outer wall of the hot pressing component 5 is movably sleeved with the cooling component 6.

[0025] The bottom of the cooling component 6 is fixedly connected to the top of the base 1, the inner wall of the cooling component 6 is rotationally connected to the outer wall of the transmission component 7, the outer wall of the transmission component 7 is meshed with the outer wall of the pushing component 8, the outer wall of the bottom of the pushing component 8 is slidably connected to the inner wall of the guiding rail 10, and the top of the pushing component 8 is movably abutted against the bottom of the hot pressing component 5.

[0026] In the present invention, the hot pressing assembly 5 includes a hot pressing block 501, an electric heating block 502, a primary pressing chamber 503, a feed pipe 504, a deformation chamber 505, a limiting block 506, a support block 507, a return spring 508, a return pipe 509 and a trigger rod 510. The top of the hot pressing block 501 is fixedly connected to the bottom of the linkage block 4, and a heating cavity is provided in the inner wall of the hot pressing block 501. The electric heating block 502 is arranged in the heating cavity and is electrically connected to the touch switch 9. The outer wall of the hot pressing block 501 near the bottom is slidably abutted against the inner wall of the primary pressing chamber 503, and the feed pipe 504 is arranged on the inner wall of the primary pressing chamber 503 near the top. The bottom end of the primary pressing chamber 503 is movably clamped with the top end of the deformation chamber 505, and the inner side wall of the deformation chamber 505 is slidably abutted against the outer wall of the limiting block 506. A fitting groove for the limiting block 506 to fit into is provided on the inner bottom wall of the deformation chamber 505, and one side of the limiting block 506 is fixedly connected to the outer wall of the support block 507. The bottom end of the support block 507 is fixedly connected to the top end of the return spring 508, and the bottom end of the return spring 508 is fixedly connected to the inner bottom wall of the return pipe 509. The top end of the return pipe 509 is fixedly connected to the bottom end of the deformation chamber 505, and a sliding groove for the trigger rod 510 to slide up and down is provided in the inner wall of the return pipe 509. The outer wall of the trigger rod 510 is movably inserted into the inner wall of the support block 507, and the bottom of the trigger rod 510 is movably abutted against the top of the pushing assembly 8. The vertical center line of the trigger rod 510 coincides with the vertical center line of the touch switch 9.

[0027] In the present invention, the cooling assembly 6 includes a water storage tank 601, a cooling plate 602, a water pump 603, a cooling pipe 604, a water storage chamber 605 and a return pipe 606. The bottom of the water storage tank 601 is fixedly connected to the top of the base 1, and the cooling plate 602 is arranged inside the water storage tank 601. The water pump 603 is installed on the top of the water storage tank 601, and the output end of the water pump 603 is fixedly connected to one end of the cooling pipe 604. The cooling pipe 604 is wound around the outer wall of the deformation chamber 505, and the other end of the cooling pipe 604 is fixedly connected to the inner wall of the water storage chamber 605. One end of the return pipe 606 is fixedly connected to the inner wall of the water storage chamber 605 on the side far from the cooling pipe 604, and the other end of the return pipe 606 is fixedly connected to the inner side wall of the water storage tank 601. The inner wall of the top of the water storage chamber 605 is rotatably connected to the outer wall of the transmission assembly 7.

[0028] In the present invention, the transmission assembly 7 includes a transmission rod 701, an impeller 702, a transmission gear 703, a reduction gear 704 and a reduction rod 705. The outer wall of the transmission rod 701 is rotationally connected to the inner wall of the top of the water storage chamber 605 through a mechanical seal, and the outer wall of the end of the transmission rod 701 located inside the water storage chamber 605 is snap-connected to the inner wall of the impeller 702. The outer wall of the impeller 702 is slidably abutted against the inner wall of the water storage chamber 605, and the outer wall of the top end of the transmission rod 701 located outside the water storage chamber 605 is snap-connected to the inner wall of the transmission gear 703. The outer wall of the transmission gear 703 is meshed with the outer wall of the reduction gear 704, and the inner wall of the reduction gear 704 is rotationally connected to the outer wall of the top end of the reduction rod 705. The bottom end of the reduction rod 705 is fixedly connected to the top of the water storage chamber 605, and the outer wall of the side of the reduction gear 704 away from the transmission gear 703 is meshed with the outer wall of the pushing assembly 8.

[0029] In the present invention, the pushing assembly 8 includes a pushing rack 801, a guiding block 802, a pushing rod 803, a deflecting strip 804, a connecting block 805, a fixing block 806, a compression spring 807 and a pushing block 808. The outer wall of the pushing rack 801 is meshed with the outer wall of the reduction gear 704, and a guiding block 802 is fixedly installed directly below the pushing rack 801. The outer wall of the bottom of the guiding block 802 is slidably connected to the inner wall of the guiding rail 10, and the top of the pushing rack 801 is fixedly connected to the bottom end of the pushing rod 803. The outer wall of the top end of the pushing rod 803 is rotationally connected to the inner wall of one side of the deflecting strip 804, and the inner wall of the other side of the deflecting strip 804 is rotationally connected to the outer wall of the connecting block 805. The outer wall of the connecting block 805 is slidably connected to the inner wall of the fixing block 806, and the bottom of the fixing block 806 is fixedly connected to the top of the support seat 2. A compression spring 807 is sleeved on the outer wall of the connecting block 805 located outside the fixing block 806, and one end of the compression spring 807 is movably abutted against the outer wall of the fixing block 806. One side of the connecting block 805 is fixedly connected to the outer wall of the pushing block 808, and the outer wall of the pushing block 808 is movably abutted against the other end of the compression spring 807. The top of the pushing block 808 is movably abutted against the bottom of the trigger rod 510.

[0030] In the present invention, the number of the cooling plates 602 is two, and the two cooling plates 602 are symmetrically arranged with respect to the vertical bisector of the water storage tank 601.

[0031] In the present invention, the pushing block 808 is designed as a trapezoidal block, and the inclined surface of the pushing block 808 is located on one side of the reset pipe 509.

[0032] In the present invention, the connecting block 805 includes a front connecting block, a linkage rod and a sliding block. The top of the front connecting block is rotationally connected to the outer wall of the deflecting strip 804 through a rod body, and the front connecting block is fixedly connected to the sliding block through the linkage rod. A compression spring 807 is sleeved on the outer wall of the sliding block located outside the fixing block 806.

[0033] In the present invention, a sliding cavity is formed in the inner wall of the fixed block 806, and the outer wall of the connecting block 805 is slidably connected to the inner wall of the sliding cavity.

[0034] A method for using a thermal deformation device for producing rare earth permanent magnet materials includes the following steps: S1: After the polished permanent magnet material is powdered and mixed with other materials, it is injected into the primary pressing chamber 503 through the feed pipe 504. The hydraulic telescopic machine 3 is started, and the hydraulic telescopic machine 3 slowly descends and drives the hot pressing block 501 to move downward through the linkage block 4. After the air in the primary pressing chamber 503 is discharged from the feed pipe 504, the mixed material is extruded to be compacted and heated. At this time, the support block 507 provides a corresponding supporting force through the abutment of the trigger rod 510 and the pushing block 808. When the pressure received by the trigger rod 510 and the pushing block 808 breaks through the critical value as the hydraulic telescopic machine 3 continues to press down, the pushing block 808 moves backward under the force. After the trigger rod 510 passes through the pushing block 808, the pushing block 808 resets under the telescopic action of the compression spring 807, pressing the trigger rod 510 directly below the pushing block 808. At this time, the trigger rod 510 abuts against the touch switch 9, causing the electric heating block 502 to start working, and continue to heat up to 700 - 800 degrees for thermal deformation to make the mixed material start to melt.

[0035] S2: The support block 507 moves downward following the trigger rod 510, driving the limiting block 506 to move into the fitting groove at the bottom of the deformation chamber 505. The melted mixed material is extruded by the hot pressing block 501 into the gap between the hot pressing block 501 and the deformation chamber 505.

[0036] S3: The water pump 603 is started, and the water pump 603 pumps the coolant in the water storage tank 601 into the cooling pipe 604. The cooling pipe 604 cools the deformation chamber 505 from the outer wall, enabling the formed thermally deformed magnet to be quickly cooled down. At the same time, the hydraulic telescopic machine 3 is started in reverse to reset the hot pressing block 501. The coolant enters the water storage chamber 605 after passing through the cooling pipe 604 and impacts the impeller 702. The impeller 702 drives the transmission rod 701 to rotate, the transmission rod 701 drives the transmission gear 703 to rotate, and the transmission gear 703 drives the pushing rack 801 to start moving after being decelerated by the reduction gear 704. The pushing rack 801 pushes the connecting block 805 to move to both sides through the deflection bar 804, causing the pushing block 808 to disengage from the top of the trigger rod 510. The trigger rod 510 starts to rise under the telescopic action of the return spring 508. The trigger rod 510 drives the support block 507 to move upward, and the support block 507 pushes the formed thermally deformed magnet out of the deformation chamber 505, unlocking the primary pressing chamber 503 and the deformation chamber 505. The primary pressing chamber 503 is moved upward through the hydraulic telescopic machine 3, enabling the staff to take out the formed thermally deformed magnet.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The hot deformation equipment for producing rare earth permanent magnet materials, including a base (1), the top of the base (1) is fixedly connected to the bottom of a support base (2), the top of the support base (2) near the left side is fixedly connected to the bottom end of a hydraulic telescopic machine (3), the top end of the hydraulic telescopic machine (3) is fixedly connected to the bottom end of a linkage block (4), the top of the support base (2) near the right side is fixedly connected to the bottom of a touch switch (9), the right side of the support base (2) is fixedly connected to the left side of a guiding rail (10), and it is characterized in that: The hydraulic telescopic machine (3) is fixedly connected to the top end of the hot pressing assembly (5) through a linkage block (4), and the outer wall of the hot pressing assembly (5) is movably sleeved with a cooling assembly (6); The bottom of the cooling assembly (6) is fixedly connected to the top of the base (1). The inner wall of the cooling assembly (6) is rotatably connected to the outer wall of the transmission assembly (7). The outer wall of the transmission assembly (7) is meshed with the outer wall of the pushing assembly (8). The outer wall of the bottom of the pushing assembly (8) is slidably connected to the inner wall of the guide rail (10). The top of the pushing assembly (8) is movably abutted against the bottom of the hot pressing assembly (5).

2. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 1, and it is characterized in that: The hot pressing assembly (5) includes a hot pressing block (501), an electric heating block (502), a primary pressing chamber (503), a feed pipe (504), a deformation chamber (505), a limiting block (506), a support block (507), a return spring (508), a return pipe (509) and a trigger rod (510). The top of the hot pressing block (501) is fixedly connected to the bottom of the linkage block (4), and a heating cavity is provided in the inner wall of the hot pressing block (501). The electric heating block (502) is arranged in the heating cavity and is electrically connected to the touch switch (9). The outer wall of the hot pressing block (501) near the bottom is slidably abutted against the inner wall of the primary pressing chamber (503), and the feed pipe (504) is arranged on the inner wall of the primary pressing chamber (503) near the top. The bottom end of the primary pressing chamber (503) is movably clamped to the top end of the deformation chamber (505), and the inner side wall of the deformation chamber (505) is movably abutted against the outer wall of the limiting block (506). A fitting groove for the limiting block (506) to fit into is provided on the inner bottom wall of the deformation chamber (505), and one side of the limiting block (506) is fixedly connected to the outer wall of the support block (507). The bottom end of the support block (507) is fixedly connected to the top end of the return spring (508), and the bottom end of the return spring (508) is fixedly connected to the inner bottom wall of the return pipe (509). The top end of the return pipe (509) is fixedly connected to the bottom end of the deformation chamber (505), and a sliding groove for the trigger rod (510) to slide up and down is provided in the inner wall of the return pipe (509). The outer wall of the trigger rod (510) is movably inserted into the inner wall of the support block (507), and the bottom of the trigger rod (510) is movably abutted against the top of the pushing assembly (8). The vertical center line of the trigger rod (510) coincides with the vertical center line of the touch switch (9).

3. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 2, and it is characterized in that: The cooling component (6) includes a water storage tank (601), a cooling plate (602), a water pump (603), a cooling pipe (604), a water storage bin (605) and a return pipe (606). The bottom of the water storage tank (601) is fixedly connected to the top of the base (1), and a cooling plate (602) is arranged inside the water storage tank (601). A water pump (603) is installed on the top of the water storage tank (601), and the output end of the water pump (603) is fixedly connected to one end of the cooling pipe (604). The cooling pipe (604) is wound around the outer wall of the deformation bin (505), and the other end of the cooling pipe (604) is fixedly connected to the inner wall of the water storage bin (605). One end of the inner wall of the water storage bin (605) away from the cooling pipe (604) is fixedly connected to one end of the return pipe (606), and the other end of the return pipe (606) is fixedly connected to the inner side wall of the water storage tank (601). The inner wall of the top of the water storage bin (605) is rotatably connected to the outer wall of the transmission component (7).

4. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 3, and it is characterized in that: The transmission component (7) is composed of a transmission rod (701), an impeller (702), a transmission gear (703), a reduction gear (704) and a reduction rod (705). The outer wall of the transmission rod (701) is rotatably connected to the inner wall of the top of the water storage bin (605) through mechanical seal, and the outer wall of the transmission rod (701) at one end inside the water storage bin (605) is snap-connected to the inner wall of the impeller (702). The outer wall of the impeller (702) is slidably abutted against the inner wall of the water storage bin (605), and the outer wall of the transmission rod (701) at the top outside the water storage bin (605) is snap-connected to the inner wall of the transmission gear (703). The outer wall of the transmission gear (703) is meshed with the outer wall of the reduction gear (704), and the inner wall of the reduction gear (704) is rotatably connected to the outer wall of the top of the reduction rod (705). The bottom end of the reduction rod (705) is fixedly connected to the top of the water storage bin (605), and the outer wall of the reduction gear (704) on the side away from the transmission gear (703) is meshed with the outer wall of the pushing component (8).

5. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 4, and it is characterized in that: The driving assembly (8) includes a driving rack (801), a guiding block (802), a driving rod (803), a deflecting strip (804), a connecting block (805), a fixing block (806), a compression spring (807) and a driving block (808). The outer wall of the driving rack (801) is meshed and connected with the outer wall of the reduction gear (704). A guiding block (802) is fixedly installed directly below the driving rack (801). The outer wall of the bottom of the guiding block (802) is slidably connected with the inner wall of the guiding rail (10). The top of the driving rack (801) is fixedly connected with the bottom end of the driving rod (803). The outer wall of the top end of the driving rod (803) is rotatably connected with the inner wall of one side of the deflecting strip (804). The inner wall of the other side of the deflecting strip (804) is rotatably connected with the outer wall of the connecting block (805). The outer wall of the connecting block (805) is slidably connected with the inner wall of the fixing block (806). The bottom of the fixing block (806) is fixedly connected with the top of the support base (2). A compression spring (807) is sleeved on the outer wall of the connecting block (805) located outside the fixing block (806). One end of the compression spring (807) is movably abutted against the outer wall of the fixing block (806). One side of the connecting block (805) is fixedly connected with the outer wall of the driving block (808). The outer wall of the driving block (808) is movably abutted against the other end of the compression spring (807). The top of the driving block (808) is movably abutted against the bottom of the trigger rod (510).

6. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 3, and it is characterized in that: The number of the cooling plates (602) is two, and the two cooling plates (602) are symmetrically arranged with respect to the vertical bisector of the water storage tank (601).

7. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 5, and it is characterized in that: The driving block (808) is designed as a trapezoidal block, and the inclined surface of the driving block (808) is located on one side of the reset pipe (509).

8. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 5, and it is characterized in that: The connecting block (805) includes a front connecting block, a linkage rod and a sliding block. The top of the front connecting block is rotatably connected with the outer wall of the deflecting strip (804) through a rod body. The front connecting block is fixedly connected with the sliding block through the linkage rod. A compression spring (807) is sleeved on the outer wall of the sliding block located outside the fixing block (806).

9. The hot deformation equipment for producing rare earth permanent magnet materials according to claim 5, and it is characterized in that: A sliding cavity is formed in the inner wall of the fixing block (806), and the inner wall of the sliding cavity is slidably connected with the outer wall of the connecting block (805).

10. The using method of the hot deformation equipment for producing rare earth permanent magnet materials, using the hot deformation equipment for producing rare earth permanent magnet materials as described in any one of claims 1 - 9, and it is characterized in that, Comprising the following steps: S1: After pulverizing the polished permanent magnet material and mixing it with other materials, inject the mixture into the initial pressing chamber (503) through the feed pipe (504). Start the hydraulic telescopic machine (3). The hydraulic telescopic machine (3) slowly descends and drives the hot pressing block (501) to move downward through the linkage block (4). After the air in the initial pressing chamber (503) is discharged from the feed pipe (504), the mixture is extruded to be compacted and heated up. At this time, the support block (507) provides corresponding supporting force through the abutment of the trigger rod (510) and the pushing block (808). When the hydraulic telescopic machine (3) continues to press down and the pressure on the trigger rod (510) and the pushing block (808) breaks through the critical value, the pushing block (808) moves backward under the force. After the trigger rod (510) passes through the pushing block (808), the pushing block (808) resets under the telescopic force of the compression spring (807), pressing the trigger rod (510) directly below the pushing block (808). At this time, the trigger rod (510) abuts against the touch switch (9), causing the electric heating block (502) to start working and continue to heat up to 700 - 800 degrees for thermal deformation to make the mixture start to melt; S2: The support block (507) moves downward following the trigger rod (510), driving the limit block (506) to move into the fitting groove at the bottom of the deformation chamber (505). The melted mixture is extruded by the hot pressing block (501) into the gap between the hot pressing block (501) and the deformation chamber (505); S3: Start the water pump (603). The water pump (603) pumps the coolant in the water storage tank (601) into the cooling pipe (604). The cooling pipe (604) cools the deformation chamber (505) from the outer wall, enabling the formed thermally deformed magnet to cool down quickly. At the same time, start the hydraulic telescopic machine (3) to reverse and reset the hot pressing block (501). The coolant enters the water storage chamber (605) after passing through the cooling pipe (604) and impacts the impeller (702). The impeller (702) drives the transmission rod (701) to rotate, the transmission rod (701) drives the transmission gear (703) to rotate, and the transmission gear (703) drives the pushing rack (801) to start moving after being decelerated by the reduction gear (704). The pushing rack (801) pushes the connecting block (805) to move to both sides through the deflection bar (804), causing the pushing block (808) to disengage from the top of the trigger rod (510). The trigger rod (510) starts to rise under the telescopic force of the reset spring (508). The trigger rod (510) drives the support block (507) to move upward. The support block (507) pushes the formed thermally deformed magnet out of the deformation chamber (505), unlocking the initial pressing chamber (503) and the deformation chamber (505). Move the initial pressing chamber (503) upward through the hydraulic telescopic machine (3) so that the staff can take out the formed thermally deformed magnet.

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