Powder metallurgy two-way warm-pressing forming device

Abstract

The utility model discloses a powder metallurgy two-way warm-pressing forming device which comprises a working table, a positioning column is fixedly installed on the inner side of the working table, and an outer mold is installed on the inner side of the positioning column in a clamping mode. The cylinder is started to drive the top die to move downwards and be clamped with the outer die, so that the top die is conveniently pressed downwards to press raw materials, and meanwhile, under the action of the plurality of groups of heating pipes which are arranged in a crossed manner, the temperature is quickly increased, the temperature of the raw materials is increased, and the forming efficiency is further improved; under the action of threads, the connecting rods are driven to move while the two sets of threaded sleeves move relatively, and then the adjusting columns, the fixing rods and the extrusion bottom mold plate are pushed to move upwards, so that two-way pressing is conducted, the production efficiency is improved, meanwhile, the pressed uniformity of the bottoms of parts is guaranteed, the structure is stable, and the service life is long; the extrusion force can be conveniently adjusted according to use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy forming equipment, in particular to a powder metallurgy bidirectional warm pressing forming device. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. Powder metallurgy has similarities with the production of ceramics, both of which belong to powder sintering technology. Due to the advantages of powder metallurgy technology, it has become the key to solving new material problems and plays a vital role in the development of new materials.

[0003] Announcement No. CN218744842U discloses a powder metallurgy bidirectional warm pressing molding device. By setting a molding bottom die, a molding top die, a molding outer die, an electric push rod and a linkage mechanism, during the powder metallurgy part processing process, a single portion of powder metallurgy raw material is first poured into the molding outer die, and then the hydraulic assembly moves downward, and the molding bottom die is moved upward through the linkage mechanism and the first piston assembly, and the molding top die and the molding bottom die move toward each other to achieve bidirectional extrusion, thereby accelerating the molding speed of the powder metallurgy part. Moreover, the force on the powder metallurgy part is relatively balanced during bidirectional extrusion, and the situation where the powder raw material extrusion molding structure at the bottom of the metallurgical blank is not firm is avoided as much as possible. The powder metallurgy molding device has the function of powder metallurgy bidirectional compression molding, which can not only improve the efficiency of powder metallurgy part processing.

[0004] Although the above technical solution can achieve the effect of bidirectional pressing by hydraulically pressing the bottom, during the pressing process of the bottom mold, the pressure cannot be adjusted due to the extrusion of different parts, which in turn leads to a decrease in the quality of the pressed product and a small scope of use. At the same time, during use, the heating effect is poor, resulting in a long pressing and molding time, and the material needs to be left to cool down when it is taken out, which reduces the overall processing efficiency. Utility Model Content

[0005] The utility model aims to provide a powder metallurgy bidirectional warm pressing molding device to solve the technical problems of the existing device that the pressure cannot be adjusted, the application range is small, the heating time is long, and the efficiency is low.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a powder metallurgy bidirectional warm pressing forming device, comprising a workbench, a positioning column fixedly installed on the inner side of the workbench, an outer mold installed on the inner side of the positioning column by snap-fitting, an extrusion bottom template movably installed on the inner side of the outer mold, an adjustment column movably installed on the bottom side of the extrusion bottom template, a base fixedly installed on the bottom side of the workbench, an adjustment seat fixedly installed on the top side of the base, a threaded rod provided on the top side of the adjustment seat, a connecting rod connected to the outer side of the threaded rod by threading, a support frame fixedly installed on the top side of the workbench, a cylinder provided on the top side of the support frame, and a top mold fixedly installed on the bottom end of the cylinder.

[0007] As a preferred solution of the present invention, a fitting groove is provided on the top side of the workbench, a cooling cavity is provided inside the fitting groove, a number of cooling pipes are evenly arranged inside the cooling cavity, and threaded holes are provided at the four corners of the inner side of the fitting groove.

[0008] Since several cooling pipes are evenly spaced inside the cooling chamber, it is beneficial to quickly cool down the material before taking it out, so as to facilitate the quick removal of parts and improve the overall processing efficiency and convenience. In addition, the fitting groove is conducive to positioning the top mold and improve the processing stability.

[0009] As a preferred solution of the present invention, a positioning groove is provided on the side of the positioning column away from the workbench, a total of four positioning columns are provided, and a number of heating tubes are installed between the positioning columns and the workbench in an equidistant and cross-arranged manner.

[0010] With the help of four sets of positioning columns and positioning grooves, the outer mold can be easily assembled and installed, and the overall load-bearing capacity and stability can be improved. In addition, several equidistant and cross-arranged heating tubes are used to facilitate rapid heating and improve part molding efficiency.

[0011] As a further preferred embodiment of the present invention, a mounting plate is fixedly installed on the top side of the outer mold, and through holes are respectively provided at the four corners of the top side of the mounting plate, which correspond one-to-one to the threaded holes. A clamping plate is fixedly installed on the outside of the outer mold, and the size and shape of the clamping plate match the positioning groove.

[0012] With the help of the mounting plate, it is convenient to position and install with the matching groove. At the same time, the through holes correspond to the threaded holes one by one, which makes it convenient to use bolts for connection and fixation. And with the help of the clamping plate, it is convenient to engage with the positioning column to improve the stability of the connection.

[0013] As a preferred solution of the present invention, a fixing rod is movably installed on the top side of the adjusting column, an extrusion bottom template is fixedly installed on the top of the fixing rod, a buffer spring is fixedly installed between the fixing rod and the adjusting column, and a No. 1 adjustment block is fixedly installed on the left and right sides of the adjusting column respectively.

[0014] During the process of the top mold pressing down, the bottom mold plate is squeezed to drive the fixed rod to move, which is then buffered by the buffer spring to avoid damage caused by excessive pressure, and the connecting rod can be easily adjusted in angle under the action of the No. 1 adjustment block.

[0015] As a further preferred solution of the present invention, an adjustment block No. 1 is movably installed at one end of the connecting rod, and there are two connecting rods in total, and an adjustment block No. 2 is movably installed at the end of the connecting rod away from the adjustment block No. 1, and a threaded sleeve is fixedly installed on the bottom side of the adjustment block No. 2, and a threaded rod is connected to the inner side of the threaded sleeve through a thread, and an adjustment motor is fixedly installed on the right end of the threaded rod.

[0016] When in use, the adjusting motor is started to drive the threaded rod to rotate, and then under the action of the thread, the two sets of threaded sleeves move relative to each other while driving the connecting rod to move, thereby pushing the adjusting column, the fixed rod and the extrusion bottom template to move upward, thereby performing two-way pressing, improving production efficiency while ensuring the uniformity of pressure on the bottom of the part, and the structure is stable and has a long service life, making it convenient to adjust the extrusion force according to usage requirements.

[0017] Compared with the prior art, the powder metallurgy bidirectional warm pressing forming device provided by the present invention has the following beneficial effects:

[0018] 1. The utility model starts the cylinder to drive the top mold to move down and engage with the outer mold, which makes it convenient for the top mold to press the raw material. At the same time, under the action of several groups of cross-installed heating pipes, it is conducive to rapid temperature increase, increasing the temperature of the raw material, thereby improving the molding efficiency. Moreover, when taking the material, the cooling pipe inside the cooling chamber is conducive to rapid cooling, which is convenient for taking out the parts after molding. It is convenient and quick to use. Subsequently, when the top mold is pressed down, the bottom mold plate is squeezed to drive the fixed rod to move, and the buffer spring is used for buffering to avoid damage caused by excessive pressure.

[0019] 2. The utility model starts the adjusting motor to drive the threaded rod to rotate. Under the action of the thread, the two sets of threaded sleeves move relative to each other and at the same time drive the connecting rod to move, pushing the adjusting column, the fixed rod and the extrusion bottom template to move upward, performing two-way pressing, improving production efficiency while ensuring the uniformity of pressure on the bottom of the part. In addition, the structure is stable and has a long service life, and it is convenient to adjust the extrusion force according to usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1This is a schematic structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0023] Figure 3 This is a schematic structural diagram of a workbench in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the outer mold in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the extrusion bottom template and the adjustment seat in an embodiment of the utility model.

[0026] Figure numerals: 1. workbench; 2. positioning column; 3. outer mold; 4. extrusion bottom mold plate; 5. adjusting column; 6. base; 7. adjusting seat; 8. threaded rod; 9. connecting rod; 10. support frame; 11. cylinder; 12. top mold; 101. fitting groove; 102. cooling chamber; 103. threaded hole; 201. positioning groove; 202. heating tube; 301. mounting plate; 302. through hole; 303. clamping plate; 501. fixing rod; 502. adjusting block No. 1; 901. adjusting block No. 2; 902. threaded sleeve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the embodiments of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-5 As shown, an embodiment of the utility model is a powder metallurgy bidirectional warm pressing molding device, comprising a workbench 1, a positioning column 2 is fixedly installed on the inner side of the workbench 1, an outer mold 3 is installed on the inner side of the positioning column 2 by snapping, an extrusion bottom template 4 is movably installed on the inner side of the outer mold 3, an adjusting column 5 is movably installed on the bottom side of the extrusion bottom template 4, a base 6 is fixedly installed on the bottom side of the workbench 1, an adjusting seat 7 is fixedly installed on the top side of the base 6, a threaded rod 8 is provided on the top side of the adjusting seat 7, a connecting rod 9 is connected to the outer side of the threaded rod 8 by threading, a support frame 10 is fixedly installed on the top side of the workbench 1, a cylinder 11 is provided on the top side of the support frame 10, and a top mold 12 is fixedly installed on the bottom end of the cylinder 11.

[0031] The top side of the workbench 1 is provided with a mating groove 101, within which a cooling chamber 102 is formed. Several cooling pipes are evenly spaced within the cooling chamber 102, and threaded holes 103 are provided at the four corners of the inner side of the mating groove 101. The evenly spaced cooling pipes within the cooling chamber 102 facilitate rapid cooling of the material before removal, thereby facilitating quick removal of parts and improving overall processing efficiency and convenience. Furthermore, the mating groove 101 facilitates positioning of the top die 12, improving processing stability.

[0032] Positioning columns 2 are provided with positioning slots 201 on the side facing away from the workbench 1. Four positioning columns 2 are provided, and a number of heating tubes 202 are installed equidistantly and crosswise between the positioning columns 2 and the workbench 1. The four sets of positioning columns 2 and positioning slots 201 facilitate the assembly and installation of the outer mold 3, improving the overall load-bearing capacity and stability. Furthermore, the equidistant and crosswise arrangement of the heating tubes 202 facilitates rapid temperature increase, enhancing part molding efficiency.

[0033] A mounting plate 301 is fixedly mounted on the top side of the outer mold 3. Through holes 302 are provided at the four corners of the top side of the mounting plate 301, corresponding one-to-one with the threaded holes 103. A clamping plate 303 is fixedly mounted on the outside of the outer mold 3, and its size and shape match the positioning slots 201. The mounting plate 301 facilitates positioning and mounting with the mating slots 101. The one-to-one correspondence between the through holes 302 and the threaded holes 103 facilitates bolt connection and fixation. Furthermore, the clamping plate 303 easily engages with the positioning posts 2, enhancing the stability of the connection.

[0034] The second embodiment is an improvement to the previous embodiment.

[0035] A fixed rod 501 is movably mounted on the top side of the adjustment column 5. The extrusion base plate 4 is fixedly mounted on the top of the fixed rod 501. A buffer spring is fixedly mounted between the fixed rod 501 and the adjustment column 5. A first adjustment block 502 is fixedly mounted on each side of the adjustment column 5. The extrusion base plate 4 drives the fixed rod 501 to move, which is then buffered by the buffer spring to prevent damage caused by excessive pressure. Furthermore, the first adjustment block 502 facilitates the angle adjustment of the connecting rod 9.

[0036] One end of the connecting rod 9 is movably mounted with a No. 1 adjustment block 502. There are two connecting rods 9 in total, and a No. 2 adjustment block 901 is movably mounted on the end of the connecting rod 9 away from the No. 1 adjustment block 502. A threaded sleeve 902 is fixedly mounted on the bottom side of the No. 2 adjustment block 901. The inner side of the threaded sleeve 902 is connected to the threaded rod 8 through a thread. The right end of the threaded rod 8 is fixedly mounted with an adjustment motor. By starting the adjustment motor, the threaded rod 8 is rotated, and then under the action of the thread, the two sets of threaded sleeves 902 move relative to each other while driving the connecting rod 9 to move, thereby pushing the adjustment column 5, the fixed rod 501 and the extrusion bottom template 4 upward, thereby performing bidirectional pressing, improving production efficiency while ensuring uniform pressure on the bottom of the part. In addition, the structure is stable and has a long service life, making it convenient to adjust the extrusion force according to usage requirements.

[0037] When in use, start the cylinder 11 to drive the top mold 12 to move down and engage with the outer mold 3, so that the top mold 12 is pressed down to press the raw material. At the same time, under the action of several groups of cross-installed heating tubes 202, it is conducive to quickly heating up the raw material temperature, thereby improving the molding efficiency. Moreover, when taking the material, the cooling tube inside the cooling chamber 102 is conducive to rapid cooling, which is convenient for taking out the parts after molding. It is convenient and quick to use. Subsequently, in the process of the top mold 12 pressing down, the fixing rod 501 is driven to move by the extrusion bottom template 4, so as to be buffered by the buffer spring to avoid damage caused by excessive pressure. Then the adjusting motor is started to drive the threaded rod 8 to rotate, and then under the action of the thread, the two groups of threaded sleeves 902 move relative to each other while driving the connecting rod 9 to move, thereby pushing the adjusting column 5, the fixing rod 501 and the extrusion bottom template 4 to move up, thereby performing two-way pressing, improving production efficiency while ensuring the uniformity of pressure on the bottom of the part, and the structure is stable and has a long service life, which is convenient for adjusting the extrusion force according to usage requirements.

[0038] The above shows and describes the basic principles of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder metallurgy bidirectional warm pressing molding device, comprising a workbench (1), characterized in that: A positioning column (2) is fixedly installed on the inner side of the workbench (1), an outer mold (3) is installed on the inner side of the positioning column (2) by snapping, an extrusion bottom mold plate (4) is movably installed on the inner side of the outer mold (3), an adjustment column (5) is movably installed on the bottom side of the extrusion bottom mold plate (4), a base (6) is fixedly installed on the bottom side of the workbench (1), an adjustment seat (7) is fixedly installed on the top side of the base (6), a threaded rod (8) is provided on the top side of the adjustment seat (7), and a connecting rod (9) is connected to the outer side of the threaded rod (8) by threading, a support frame (10) is fixedly installed on the top side of the workbench (1), a cylinder (11) is provided on the top side of the support frame (10), and a top mold (12) is fixedly installed on the bottom end of the cylinder (11).

2. The powder metallurgy bidirectional warm pressing molding device according to claim 1, characterized in that: A fitting groove (101) is provided on the top side of the workbench (1), a cooling cavity (102) is provided on the inner side of the fitting groove (101), a plurality of cooling pipes are arranged at equal intervals on the inner side of the cooling cavity (102), and threaded holes (103) are provided at the four corners of the inner side of the fitting groove (101).

3. The powder metallurgy bidirectional warm pressing molding device according to claim 1, characterized in that: A positioning groove (201) is provided on a side of the positioning column (2) away from the workbench (1), a total of four positioning columns (2) are provided, and a plurality of heating tubes (202) are arranged and installed between the positioning columns (2) and the workbench (1) at equal intervals.

4. The powder metallurgy bidirectional warm pressing molding device according to claim 3, characterized in that: A mounting plate (301) is fixedly mounted on the top side of the outer mold (3), and through holes (302) are respectively provided at the four corners of the top side of the mounting plate (301), and the through holes (302) correspond one-to-one with the threaded holes (103). A clamping plate (303) is fixedly mounted on the outside of the outer mold (3), and the size and shape of the clamping plate (303) match the positioning groove (201).

5. The powder metallurgy bidirectional warm pressing molding device according to claim 1, characterized in that: A fixing rod (501) is movably mounted on the top side of the adjusting column (5), an extrusion bottom template (4) is fixedly mounted on the top end of the fixing rod (501), a buffer spring is fixedly mounted between the fixing rod (501) and the adjusting column (5), and a No. 1 adjusting block (502) is fixedly mounted on the left and right sides of the adjusting column (5), respectively.

6. The powder metallurgy bidirectional warm pressing molding device according to claim 5, characterized in that: One end of the connecting rod (9) is movably mounted with a No. 1 adjustment block (502), and two connecting rods (9) are provided in total, and one end of the connecting rod (9) away from the No. 1 adjustment block (502) is movably mounted with a No. 2 adjustment block (901), a threaded sleeve (902) is fixedly mounted on the bottom side of the No. 2 adjustment block (901), the inner side of the threaded sleeve (902) is connected to a threaded rod (8) via a thread, and an adjustment motor is fixedly mounted on the right end of the threaded rod (8).

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