Thermal deformation equipment and hot pressing process for the production of rare earth permanent magnet materials

Abstract

The present invention relates to the technical field of hot pressing processing equipment, and discloses hot deformation equipment for producing rare earth permanent magnetic materials and a hot pressing process thereof. The equipment comprises a base, wherein the top of the base is fixedly connected to the bottom of a support base, the top of the support base near the left side is fixedly connected to the bottom end of a hydraulic telescopic machine, the top of the hydraulic telescopic machine is fixedly connected to the bottom end of a linkage block, the top of the support base near the right side is fixedly connected to the bottom of a touch switch, the right side of the support base is fixedly connected to the left side of a guide rail, and the hydraulic telescopic machine is fixedly connected to the top of a hot pressing component via a linkage block. The hot deformation equipment for producing rare earth permanent magnetic materials and the hot pressing process thereof are used in conjunction with a cooling component, a transmission component and a pushing component, so that the equipment can complete the cooling work in time after completing the hot deformation work on the permanent magnetic material, and lift the cooled and formed permanent magnet from the equipment after cooling is completed.

Description

Technical Field

[0001] The invention relates to the technical field of hot pressing processing equipment, in particular to hot deformation equipment and a hot pressing process for producing rare earth permanent magnet materials. Background Art

[0002] Rare earth permanent magnets are based on intermetallic compounds formed by rare earth metals and transition metals. Neodymium iron boron permanent magnets are currently the most magnetic permanent magnet material and are widely used in automotive, air conditioning, wind power generation, defense, and aerospace applications. They are crucial functional materials supporting social progress. The main methods for preparing permanent magnets are sintering and thermal deformation.

[0003] At present, most of the thermal deformation equipment for producing rare earth permanent magnet materials on the market cannot conveniently remove the permanent magnet from the equipment after the permanent magnet is formed. The staff needs to stop the machine and then pick the permanent magnet out of the embryo. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a thermal deformation device and a hot pressing process for producing rare earth permanent magnet materials, which solves the problem that the permanent magnet cannot be conveniently removed from the device after being formed.

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

[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 the transmission component, the outer wall of the transmission component is meshedly connected to the outer wall of the 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, an initial pressing chamber, a feed pipe, a deformation chamber, a limit block, a support block, a reset spring, a reset tube and a trigger rod. The top of the hot pressing block is fixedly connected to the bottom of the linkage block, and a heating chamber is provided on the inner wall of the hot pressing block. An electric heating block is provided in the heating chamber, and the electric heating block is electrically connected to the touch switch. The outer wall of the hot pressing block near the bottom slides against the inner wall of the initial pressing chamber, and a feed pipe is provided on the inner wall of the initial pressing chamber near the top. The bottom end of the initial pressing chamber is movably clamped with the top end of the deformation chamber, and the inner side wall of the deformation chamber is movably connected to the outer wall of the limit block. The cam is fixedly connected to the top of the reset spring, and the bottom end of the reset spring is fixedly connected to the inner bottom wall of the reset tube. The top end of the reset tube is fixedly connected to the bottom end of the deformation bin, and the inner wall of the reset tube is provided with a sliding groove for the trigger rod to slide up and down. The outer wall of the trigger rod is movably plugged into the inner wall of the support block, and the bottom of the trigger rod is movably abutted against 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 tank, a cooling plate, a water pump, a cooling pipe, a water storage tank and a return pipe. The bottom of the water tank is fixedly connected to the top of the base, and a cooling plate is provided inside the water tank. A water pump is installed on the top of the water tank, and the output end of the water pump is fixedly connected to one end of the cooling pipe. The cooling pipe is wrapped around the outer wall of the deformation tank, and the other end of the cooling pipe is fixedly connected to the inner wall of the water storage tank. The inner wall of the water storage tank away from the cooling pipe is fixedly connected to one end of the return pipe, and the other end of the return pipe is fixedly connected to the inner wall of the water tank. The inner wall of the top of the water storage tank 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 tank through a mechanical seal, and the outer wall of the transmission rod at one end inside the water storage tank is snap-connected with the inner wall of the impeller, the outer wall of the impeller slides against the inner wall of the water storage tank, and the outer wall of the transmission rod at the top outside the water storage tank is snap-connected with the inner wall of the transmission gear, the outer wall of the transmission gear is meshed 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 tank, and the outer wall of the reduction gear away from the transmission gear is meshed with the outer wall of the pushing assembly.

[0010] The top end of the guide rail is fixedly connected to the bottom end of the guide rail, and the outer wall of the guide rail is slidably connected to the inner wall of the guide rail, and the top of the guide rail is fixedly connected to the bottom end of the push rod, the outer wall of the top end of the push rod is rotatably connected to the inner wall of one side of the deflection bar, and the inner wall of the other side of the deflection bar 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 fixed block, and the bottom of the fixed block is fixedly connected to the top of the support seat, the outer wall of the connecting block is located outside the fixed block and is sleeved with a compression spring, and one end of the compression spring is movably abutted against the outer wall of the fixed block, one side of the connecting block is fixedly connected to the outer wall of the pushing block, and the outer wall of the pushing block is movably abutted against the other end of the compression spring, and 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 the mid-vertical line of the water tank as the symmetry axis.

[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 tube.

[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 deflection bar through a rod body, and the front connecting block is fixedly connected to the sliding block through a linkage rod, and the outer wall of the sliding block located outside the fixed block is sleeved with a compression spring.

[0014] Preferably, a sliding cavity is formed on 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 method for using the thermal deformation equipment for producing rare earth permanent magnet materials comprises the following steps:

[0016] S1: The polished permanent magnetic material is pulverized and mixed with the material, and then injected into the initial pressure bin through the feed pipe. The hydraulic telescopic machine is started, and the hydraulic telescopic machine slowly descends and drives the hot pressing block downward through the linkage block. After the air in the initial pressure bin is discharged from the feed pipe, the mixture is squeezed to compact the mixture and heat it up. At this time, the support block provides corresponding supporting force through the contact between the trigger rod and the push block. The hydraulic telescopic machine continues to press down. When the pressure exerted on the trigger rod and the push block exceeds the critical value, the push block is forced to move backward, and after the trigger rod passes through the push block, the push block is reset under the telescopic force of the compression spring, pressing the trigger rod directly under the push block. At this time, the trigger rod contacts the touch switch, causing the electric heating block to start working, and continue to heat up to 700-800 degrees for thermal deformation to melt the mixture.

[0017] 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 squeezed by the hot pressing block into the gap between the hot pressing block and the deformation chamber.

[0018] S3: Start the water pump, which pumps the coolant in the water tank into the cooling pipe. The cooling pipe cools the deformation chamber from the outer wall, so that the formed hot-deformed magnet can be cooled down quickly. At the same time, start the hydraulic telescopic machine in reverse to reset the hot pressing block. The coolant passes through the cooling pipe and enters the water storage chamber to impact the impeller. The impeller drives the transmission rod to rotate, and the transmission rod drives the transmission gear to rotate. The transmission gear drives the push rack to start moving after being decelerated by the reduction gear. The push rack pushes the connecting block to move to both sides through the deflection bar, so that the push block is separated from the top of the trigger rod. The trigger rod starts to rise under the telescopic force of the reset spring, and the trigger rod drives the support block to move upward. The support block pushes the formed hot-deformed magnet out of the deformation chamber, unlocks the initial pressure chamber and the deformation chamber, and moves the initial pressure chamber upward through the hydraulic telescopic machine, so that the staff can take out the formed hot-deformed magnet.

[0019] The present invention provides a thermal deformation device and hot pressing process for producing rare earth permanent magnet materials. Compared with the existing technology, it has the following advantages:

[0020] (1) The thermal deformation equipment and hot pressing process for producing rare earth permanent magnet materials can complete the cooling work in time after completing the thermal deformation work of the permanent magnet material through the mutual use of the cooling component, the transmission component and the pushing component. After the cooling is completed, the cooled and formed permanent magnet is lifted from the equipment, which brings convenience to the staff's picking operation.

[0021] (2) The hot deformation equipment and hot pressing process of the rare earth permanent magnet material production are used in conjunction with the hot pressing components and cooling components. After quenching, the permanent magnet material is mixed and injected into the hot pressing component. After the hot pressing operation, the cooling work can be completed in time, which brings convenience to the processing of the permanent magnet material.

[0022] (3) The thermal deformation equipment and hot pressing process for producing rare earth permanent magnet materials are used in conjunction with cooling components, transmission components and driving components. The cooling liquid drives the impeller to rotate to complete the transmission operation, thereby reducing energy loss and further reducing the processing consumption of rare earth permanent magnet materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 It is a partial structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the cooling assembly and the transmission assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between the hot pressing component and the pushing component of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the driving component of the present invention.

[0029] In the figure: 1. Base; 2. Support seat; 3. Hydraulic expansion joint; 4. Linkage block; 5. Hot pressing assembly; 501. Hot pressing block; 502. Electric heating block; 503. Initial pressing chamber; 504. Feed pipe; 505. Deformation chamber; 506. Limit block; 507. Support block; 508. Reset spring; 509. Reset pipe; 510. Trigger rod; 6. Cooling assembly; 601. Water tank; 602. Cooling plate; 603. Water pump; 604. Cooling Pipe; 605, water storage tank; 606, return pipe; 7, transmission assembly; 701, transmission rod; 702, impeller; 703, transmission gear; 704, reduction gear; 705, reduction rod; 8, pushing assembly; 801, pushing rack; 802, guide block; 803, pushing rod; 804, deflection bar; 805, connecting block; 806, fixing block; 807, compression spring; 808, pushing block; 9, touch switch; 10, guide rail. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 6 The thermal deformation equipment for the production of rare earth permanent magnet materials includes 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 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 guide rail 10, the hydraulic telescopic machine 3 is fixedly connected to the top 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 a cooling component 6.

[0032] 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 rotatably 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 slidingly connected to the inner wall of the guide rail 10, and the top of the pushing component 8 is movably abutted against the bottom of the hot pressing component 5.

[0033] In the present invention, the hot pressing assembly 5 includes a hot pressing block 501, an electric heating block 502, an initial pressure chamber 503, a feeding pipe 504, a deformation chamber 505, a limit block 506, a support block 507, a reset spring 508, a reset tube 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 chamber is provided on the inner wall of the hot pressing block 501. The electric heating block 502 is provided in the heating chamber, and the electric heating block 502 is electrically connected to the touch switch 9. The outer wall of the hot pressing block 501 near the bottom is in sliding contact with the inner wall of the initial pressure chamber 503, and the inner wall of the initial pressure chamber 503 near the top is provided with a feeding pipe 504. The bottom end of the initial pressure chamber 503 is movably connected to the top of the deformation chamber 505, and the inner wall of the deformation chamber 505 is in contact with the limit The outer wall of the positioning block 506 is movably abutted, and the inner bottom wall of the deformation bin 505 is provided with an interlocking groove for the limiting block 506 to be engaged, 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 of the reset spring 508, and the bottom end of the reset spring 508 is fixedly connected to the inner bottom wall of the reset tube 509, the top of the reset tube 509 is fixedly connected to the bottom end of the deformation bin 505, and the inner wall of the reset tube 509 is provided with a sliding groove for the trigger rod 510 to slide up and down, the outer wall of the trigger rod 510 is movably plugged 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 component 8, and the vertical center line of the trigger rod 510 coincides with the vertical center line of the touch switch 9.

[0034] In the present invention, the cooling assembly 6 includes a water tank 601, a cooling plate 602, a water pump 603, a cooling pipe 604, a water storage tank 605 and a return pipe 606. The bottom of the water tank 601 is fixedly connected to the top of the base 1, and a cooling plate 602 is provided inside the water tank 601. A water pump 603 is installed on the top of the water 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 wrapped around the outer wall of the deformation tank 505, and the other end of the cooling pipe 604 is fixedly connected to the inner wall of the water storage tank 605. The inner wall of the water storage tank 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 wall of the water tank 601. The inner wall of the top of the water storage tank 605 is rotatably connected to the outer wall of the transmission assembly 7.

[0035] 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 rotatably connected to the inner wall of the top of the water storage tank 605 through a mechanical seal, and the outer wall of the transmission rod 701 at one end inside the water storage tank 605 is engaged with the inner wall of the impeller 702. The outer wall of the impeller 702 slides against the inner wall of the water storage tank 605, and the outer wall of the transmission rod 701 at the top outside the water storage tank 605 is engaged with 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 tank 605, and the outer wall of the reduction gear 704 away from the transmission gear 703 is meshed with the outer wall of the pushing assembly 8.

[0036] In the present invention, the pushing assembly 8 includes a pushing rack 801, a guide block 802, a pushing rod 803, a deflection bar 804, a connecting block 805, a fixed 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 guide block 802 is fixedly installed just below the pushing rack 801. The outer wall of the bottom of the guide block 802 is slidably connected to the inner wall of the guide rail 10, and the top of the pushing rack 801 is fixedly connected to the bottom end of the pushing rod 803, and the outer wall of the top of the pushing rod 803 is rotatably connected to the inner wall of one side of the deflection bar 804, and the deflection The inner wall of the other side of the strip 804 is rotatably 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 fixed block 806, and the bottom of the fixed block 806 is fixedly connected to the top of the support seat 2, the outer wall of the connecting block 805 located outside the fixed block 806 is sleeved with a compression spring 807, and one end of the compression spring 807 is movably abutted against the outer wall of the fixed 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, and the top of the pushing block 808 is movably abutted against the bottom of the trigger rod 510.

[0037] In the present invention, the number of the cooling plates 602 is two, and the two cooling plates 602 are symmetrically arranged with the mid-perpendicular line of the water storage tank 601 as the symmetry axis.

[0038] 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 tube 509 .

[0039] 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 rotatably connected to the outer wall of the deflection bar 804 through the rod body, and the front connecting block is fixedly connected to the sliding block through the linkage rod, and the outer wall of the sliding block located outside the fixed block 806 is sleeved with a compression spring 807.

[0040] In the present invention, a sliding cavity is formed on the inner wall of the fixing block 806 , and the inner wall of the sliding cavity is slidably connected to the outer wall of the connecting block 805 .

[0041] The method for using the thermal deformation equipment for producing rare earth permanent magnet materials includes the following steps:

[0042] S1: The polished permanent magnetic material is pulverized and mixed with the material, and then injected into the initial pressure bin 503 through the feed pipe 504. The hydraulic telescopic machine 3 is started. The hydraulic telescopic machine 3 slowly descends and drives the hot pressing block 501 downward through the linkage block 4. After the air in the initial pressure bin 503 is discharged from the feed pipe 504, the mixed material is squeezed to make the mixed material compacted and heated. At this time, the support block 507 provides corresponding support force through the contact between the trigger rod 510 and the push block 808. The hydraulic telescopic machine 3 When the pressure on the trigger rod 510 and the pushing block 808 exceeds the critical value by continuing to press down, the pushing block 808 is forced to move backward, and after the trigger rod 510 passes through the pushing block 808, the pushing block 808 is reset 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 cause the mixture to begin to melt.

[0043] 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 squeezed by the hot pressing block 501 into the gap between the hot pressing block 501 and the deformation chamber 505 .

[0044] S3: Start the water pump 603, which pumps the coolant in the water tank 601 into the cooling pipe 604. The cooling pipe 604 cools the deformation chamber 505 from the outer wall, so that the thermally deformed magnet after forming can be cooled down quickly. At the same time, the hydraulic expansion machine 3 is started in the reverse direction to reset the hot pressing block 501. The coolant passes through the cooling pipe 604 and enters the water tank 605 to impact the impeller 702. The impeller 702 drives the transmission rod 701 to rotate, and the transmission rod 701 drives the transmission gear 703 to rotate. The transmission gear 703 is decelerated by the reduction gear 704. The pushing rack 801 starts to move, and the pushing rack 801 pushes the connecting block 805 to move to both sides through the deflection bar 804, so that the pushing block 808 is separated from the top of the trigger rod 510, and the trigger rod 510 starts to rise under the telescopic force 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 initial pressure chamber 503 and the deformation chamber 505. The initial pressure chamber 503 is moved upward by the hydraulic telescopic machine 3, so that the staff can take out the formed thermally deformed magnet.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A thermal deformation device for producing rare earth permanent magnet materials, comprising a base (1), wherein 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 of a hydraulic telescopic machine (3), the top of the hydraulic telescopic machine (3) is fixedly connected to the bottom 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), and the right side of the support base (2) is fixedly connected to the left side of a guide rail (10), characterized in that: The hydraulic telescopic machine (3) is fixedly connected to the top end of the hot pressing component (5) via a linkage block (4), and the outer wall of the hot pressing component (5) is movably sleeved with a cooling component (6); 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 rotatably connected to the outer wall of the transmission component (7), the outer wall of the transmission component (7) is meshedly connected to 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 guide rail (10), and the top of the pushing component (8) is movably abutted against the bottom of the hot pressing component (5).

2. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 1, characterized in that: The hot pressing assembly (5) includes a hot pressing block (501), an electric heating block (502), an initial pressure chamber (503), a feeding pipe (504), a deformation chamber (505), a limit block (506), a support block (507), a reset spring (508), a reset tube (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 the inner wall of the hot pressing block (501) is provided with a pressure relief valve. The heating chamber is provided with an electric heating block (502), and the electric heating block (502) is electrically connected to the touch switch (9), the outer wall of the hot pressing block (501) near the bottom is in sliding contact with the inner wall of the initial pressure chamber (503), and the inner wall of the initial pressure chamber (503) near the top is provided with a feeding pipe (504), the bottom end of the initial pressure chamber (503) is movably connected with the top end of the deformation chamber (505), and the inner side of the deformation chamber (505) is The wall is movably abutted against the outer wall of the limit block (506), the inner bottom wall of the deformation chamber (505) is provided with an interlocking groove for the limit block (506) to be interlocked, and one side of the limit 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 tube (509), and the return tube The top end of (509) is fixedly connected to the bottom end of the deformation chamber (505), and the inner wall of the reset tube (509) is provided with a sliding groove for the trigger rod (510) to slide up and down, the outer wall of the trigger rod (510) is movably connected to the inner wall of the support block (507), and the bottom of the trigger rod (510) is movably abutted against the top of the push component (8), and the vertical center line of the trigger rod (510) coincides with the vertical center line of the touch switch (9).

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

4. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 3, characterized in that: The transmission assembly (7) comprises 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 tank (605) through a mechanical seal, and the outer wall of the transmission rod (701) located at one end inside the water storage tank (605) is engaged with the inner wall of the impeller (702); the outer wall of the impeller (702) is in sliding contact with the inner wall of the water storage tank (605), and the transmission rod (701) is in sliding contact with the inner wall of the water storage tank (605). 01) The outer wall at the top of the water storage tank (605) is engaged with 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 at 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 tank (605), and the outer wall of the reduction gear (704) away from the transmission gear (703) is meshed with the outer wall of the pushing component (8).

5. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 4, characterized in that: The pushing assembly (8) includes a pushing rack (801), a guide block (802), a pushing rod (803), a deflection bar (804), a connecting block (805), a fixed block (806), a compression spring (807) and a pushing block (808), wherein the outer wall of the pushing rack (801) is meshedly connected with the outer wall of the reduction gear (704), and a guide block (802) is fixedly installed directly below the pushing rack (801), the outer wall of the bottom of the guide block (802) is slidably connected with the inner wall of the guide rail (10), and the top of the pushing rack (801) is fixedly connected with the bottom end of the pushing rod (803), the outer wall of the top end of the pushing rod (803) is rotatably connected with the inner wall of one side of the deflection bar (804), and the deflection bar (804) is fixedly connected with the outer wall of the top end of the pushing rod (803). The inner wall of the other side of the strip (804) is rotatably 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 fixed block (806), and the bottom of the fixed block (806) is fixedly connected to the top of the support seat (2), the outer wall of the connecting block (805) located outside the fixed block (806) is sleeved with a compression spring (807), and one end of the compression spring (807) is movably abutted against the outer wall of the fixed 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), and the top of the pushing block (808) is movably abutted against the bottom of the trigger rod (510).

6. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 3, characterized in that: The number of the cooling plates (602) is two, and the two cooling plates (602) are symmetrically arranged with the mid-vertical line of the water storage tank (601) as the symmetry axis.

7. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 5, characterized in that: 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 tube (509).

8. The thermal deformation equipment for producing rare earth permanent magnet materials according to claim 5, characterized in that: The connecting block (805) comprises a front connecting block, a linkage rod and a sliding block, wherein the top of the front connecting block is rotatably connected to the outer wall of the deflection bar (804) via a rod body, and the front connecting block is fixedly connected to the sliding block via the linkage rod, and a compression spring (807) is sleeved on the outer wall of the sliding block located outside the fixed block (806).

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

10. A method for using a thermal deformation device for producing rare earth permanent magnet materials, wherein the method comprises using the thermal deformation device for producing rare earth permanent magnet materials according to any one of claims 5 to 9, wherein: The steps include: S1: The ground permanent magnetic material is pulverized and mixed with the material, and then injected into the initial pressure bin (503) through the feed pipe (504). The hydraulic telescopic machine (3) is started. 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 pressure bin (503) is discharged from the feed pipe (504), the mixed material is squeezed to make the mixed material compacted and heated. At this time, the support block (507) provides corresponding support force through the contact between the trigger rod (510) and the push block (808). The hydraulic telescopic machine (3) When the pressure on the trigger rod (510) and the push block (808) exceeds the critical value, the push block (808) is forced to move backward, and after the trigger rod (510) passes through the push block (808), the push block (808) is reset under the expansion and contraction force of the compression spring (807), pressing the trigger rod (510) directly below the push block (808). At this time, the trigger rod (510) contacts the touch switch (9), causing the electric heating block (502) to start working, and continue to heat up to 700-800 degrees to perform thermal deformation so that the mixture begins 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), and the melted mixed material is squeezed 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 tank (601) into the cooling pipe (604), the cooling pipe (604) cools the deformation chamber (505) from the outer wall, so that the formed heat-deformed magnet can be quickly cooled down, and at the same time start the hydraulic expansion machine (3) to reversely start and reset the hot pressing block (501), the coolant enters the water tank (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) is reduced through the reduction gear (704). Then, the pushing rack (801) starts to move, and the pushing rack (801) pushes the connecting block (805) to move to both sides through the deflection bar (804), so that the pushing block (808) is separated from the top of the trigger rod (510). The trigger rod (510) starts to rise under the telescopic force of the return spring (508), and the trigger rod (510) drives the support block (507) to move upward. The support block (507) pushes the formed heat-deformed magnet out of the deformation chamber (505), unlocks the initial pressure chamber (503) and the deformation chamber (505), and moves the initial pressure chamber (503) upward through the hydraulic telescopic machine (3), so that the staff can take out the formed heat-deformed magnet.

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