A powder metallurgy pressing die

Abstract

The present invention relates to the field of powder metallurgy, and in particular to a pressing die for powder metallurgy. Technical problem: During the use of the existing pressing die, due to a single production range, only workpieces of a single shape can be produced. When workpieces of different shapes are produced at the same time, the forming die needs to be replaced, which can easily affect the production efficiency of the entire powder metallurgy process. Technical solution: A pressing die for powder metallurgy, comprising a bracket assembly; an adjustment assembly is arranged on the inner side of the bracket assembly. The present invention sets a special rotary module circulation structure so that the pressing die can continuously change the shape of the workpiece to be manufactured during the operation, so as to solve the problem that during the use of the existing pressing die, due to a single production range, only workpieces of a single shape can be produced. When workpieces of different shapes are produced at the same time, the forming die needs to be replaced.

Description

Technical Field

[0001] The invention relates to the field of powder metallurgy, in particular to a pressing die for powder metallurgy. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metal powder) as raw material, and then forms and sinters it to produce metal materials, composite materials and various types of products. Powder metallurgy is similar to the production of ceramics, both of which belong to powder sintering technology. Therefore, a series of new powder metallurgy technologies can also be used to prepare ceramic materials. 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] Powder metallurgy includes powder making and products. Powder making is mainly a metallurgical process, which is consistent with the literal meaning. Powder metallurgy products often go far beyond the scope of materials and metallurgy, and are often cross-disciplinary (materials and metallurgy, machinery and mechanics, etc.) technologies. In the existing powder metallurgy process, it is often necessary to press the pressing structure tightly inside the pressing mold to achieve the production of the workpiece. However, in the process of using the existing pressing mold, it is necessary to produce corresponding pressing modules because of the need to use and produce molds of different specifications. The replacement of the pressing module often takes a certain amount of time to operate. At the same time, within a single production range, only workpieces of a single shape can be produced, which will affect the production efficiency of the entire powder metallurgy process to a certain extent. Summary of the invention

[0004] In order to overcome the problem that the existing pressing mold can only produce workpieces of a single shape due to a single production range during use, and when producing workpieces of different shapes, the forming mold needs to be replaced, which can easily affect the production efficiency of the entire powder metallurgy process.

[0005] The technical solution of the present invention is: a powder metallurgy pressing mold, comprising a bracket assembly; an adjusting assembly is arranged on the inner side of the bracket assembly; the bracket assembly comprises a motor frame; a first motor is installed at the lower end of the motor frame; a positioning ring is installed on the motor frame; the adjusting assembly comprises a driving wheel; the first motor and the driving wheel are arranged to be rotatably connected through a rotating shaft; a driven wheel is arranged on one side of the driving wheel; two rotating sprockets are arranged at the lower end of the driving wheel; the driven wheel is connected to a rotating sprocket at one end by bolts; a plurality of fixed chain blocks are arranged on the outer side of the driven wheel; a connecting piece is rotatably connected between two adjacent fixed chain blocks; a plurality of sliding frames are slidably connected to the positioning ring; the sliding frame and the fixed chain block are connected by bolts; a ring slide rail is arranged at the lower end of the sliding frame; a guide wheel is rotatably connected to the lower end surface of the sliding frame; a connecting block is installed on the sliding frame; and a fixing module is magnetically connected to the connecting block.

[0006] Preferably, a fixing bracket is arranged on the outer side of the positioning ring; a connecting seat is installed on one side of the fixing bracket; a guide groove is arranged on the upper end of the connecting seat; and two supporting seats are installed on the lower end of the fixing bracket.

[0007] Preferably, a feed assembly is installed on one side of the bracket assembly; the feed assembly includes a fixed plate; a connecting frame is fixedly connected to one side of the fixed plate; a positioning frame is installed on the connecting frame; a fixed support plate is fixedly connected to one side of the connecting frame; a feed box is slidably connected to the inner side of the fixed support plate; a feed pipe is fixedly connected to the feed box; a first electric push rod is installed on the feed box; a push plate is installed on the first electric push rod; a connecting box plate is installed at the lower end of the feed box; a first hydraulic push rod is installed on one side of the connecting box plate; a positioning guide rod is provided at the front and rear ends of the first hydraulic push rod; the positioning guide rod and the connecting box plate are configured to be slidably connected; the first hydraulic push rod is connected to the fixed bracket by bolts.

[0008] Preferably, a switching assembly is provided at the upper end of the feeding assembly; the switching assembly includes a connecting tooth plate; a plurality of positioning grooves are provided on the connecting tooth plate; a first positioning block is slidably connected to the inner side of the positioning groove; a fixing rod is installed at the upper end of the first positioning block; a return spring is provided at the outer side of the fixing rod; a second positioning block is provided at the upper end of the return spring; a movable top strip is provided at the outer side of the second positioning block; an upper pressure block is installed at the lower end of the first positioning block; a first meshing wheel is provided on one side of the connecting tooth plate; a synchronization rod is installed on the first meshing wheel; and a second meshing wheel is installed at the outer side of the synchronization rod.

[0009] Preferably, a synchronous rotating wheel is installed at the upper end of the second meshing wheel; the outer side of the synchronous rotating wheel is rotatably connected to a conveyor belt; the lower end of the front end synchronous rod is rotatably connected to the second motor through a coupling; a top block bottom plate is installed on one side of the second motor; a movable plate is provided at the upper end of the top block bottom plate; a plurality of top rod grooves are opened on the movable plate; a plurality of lower top blocks are provided on the upper end of the movable plate; a push rod frame is installed at the lower end of the top block bottom plate; a second hydraulic push rod is installed on the push rod frame; a vacuum suction cup is installed at the upper end of the second hydraulic push rod.

[0010] Preferably, a grabbing assembly is provided at the front end of the bracket assembly; the grabbing assembly includes a screw rail; a screw slider is provided on the screw rail; a connecting column is installed at the upper end of the screw slider; and a grabbing frame is installed on one side of the connecting column.

[0011] Preferably, a bidirectional slide rail is provided at the lower end of the grabbing frame; a bidirectional screw rod is provided on the inner side of the bidirectional slide rail; the thread directions of the front and rear ends of the bidirectional screw rod are set to be opposite; the outer clearance of the bidirectional screw rod is fitted with two adjustment blocks; and a clamping plate is installed on the adjustment block.

[0012] Preferably, a picking assembly is installed on the other side of the bracket assembly; the picking assembly includes a connecting column frame; the connecting column frame is connected to the fixed bracket by bolts; the upper end of the connecting column frame is rotatably connected to the fixed column; a connecting column plate is installed on the fixed column; a second electric push rod is installed on the connecting column plate; a moving frame is installed on both sides of the connecting column plate; an adjusting frame is slidably connected to the inner side of the moving frame; and a third hydraulic push rod is installed on the upper end of the adjusting frame.

[0013] Preferably, an engaging plate is installed at the lower end of the third hydraulic push rod; a rotating wheel is provided at the front and rear ends of the engaging plate; the rotating wheel and the adjusting frame are rotatably connected through a rotating shaft; a driving wheel is installed on one side of the rotating wheel; a driving clamp is provided at the lower end of the driving wheel; a fixed clamp is installed on the driving clamp; and a positioning shaft is slidably connected to the inner side of the driving clamp.

[0014] Preferably, a rotating assembly is provided at the lower end of the picking assembly; the rotating assembly includes a fixed shaft; the fixed shaft is connected to the fixed column by bolts; a guide frame is installed at the lower end of the fixed shaft; a limiting groove is provided on the guide frame; a toggle wheel is provided at the lower end of the guide frame; two toggle rods are installed at the upper end of the toggle wheel; the lower end of the toggle wheel is rotatably connected to a third motor via a rotating shaft.

[0015] Beneficial effects of the present invention:

[0016] 1. By setting up a special rotary module circulation structure, the pressing die can continuously change the shape of the workpiece to be manufactured during the working process, so as to solve the problem that the existing pressing die can only produce workpieces of a single shape due to a single production range during use, and when producing workpieces of different shapes, the forming die needs to be replaced, which easily affects the production efficiency of the entire powder metallurgy process;

[0017] 2. The driving wheel is driven by the first motor to rotate, and the driven wheel is driven to rotate by the rotating driving wheel, so that the rotating sprocket is driven to rotate by the driven wheel, and then the rotating sprocket, the fixed chain block and the connecting piece are used to synchronously drive another rotating sprocket to rotate, so that the fixed chain block drives multiple sliding frames to slide on the ring slide rail, and the fixed modules magnetically connected to the sliding frame can be moved and adjusted, so that the multiple fixed modules can be adjusted in a rotary manner, so as to realize uninterrupted fixed module switching, and the pressing mold can realize the pressing production of workpieces of different shapes in a single startup process, thereby greatly improving the convenience of using the entire pressing mold;

[0018] 3. The meshing plate is driven downward by the third hydraulic push rod, so that the meshing plate can drive the rotating wheel to rotate, and the rotating rotating wheel drives the driving wheel to rotate, so that the driving clamp is driven to move on the positioning shaft by the rotating driving wheel, so that the fixed clamp installed on the driving clamp can clamp the fixed module, and the second electric push rod is driven to drive the adjustment frame to move in the moving frame, so that the fixed module clamped on the fixed clamp can move to the guide groove, so that the fixed module can be separated from the connecting block, so that the fixed module can be taken out, and then the rotating fixed module can be replaced, so as to achieve the state adjustment of the production workpiece;

[0019] 4. The screw slider is driven to move by the screw slide rail, so that the bidirectional slide rail and the grab frame can be moved. With the movement of the grab frame, the second positioning block and the first positioning block slidably connected to the movable top bar and the connecting tooth plate can be adsorbed by the grab frame. At the same time, the two screw sliders are driven to move in opposite directions by the bidirectional slide rail, so that the clamping plate can clamp the lower top block, so that the upper pressing block and the lower top block can adapt to the movement of the replaced fixed module, thereby realizing the synchronous adjustment of the fixed module to a certain extent, and then the convenience of using the pressing mold can be improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of a first three-dimensional structure of the pressing mold of the present invention;

[0021] Figure 2Shown is a second three-dimensional structural schematic diagram of the pressing mold of the present invention;

[0022] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the pressing mold support assembly of the present invention;

[0023] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the pressing die adjustment assembly of the present invention;

[0024] Figure 5 The first stereoscopic structure schematic diagram of the pressing die feed assembly of the present invention is shown;

[0025] Figure 6 Shown is a second three-dimensional structural schematic diagram of the pressing die feed assembly of the present invention;

[0026] Figure 7 Shown is a first three-dimensional structural schematic diagram of the pressing die switching assembly of the present invention;

[0027] Figure 8 Shown is a schematic diagram of the three-dimensional structure of the pressing die grabbing assembly of the present invention;

[0028] Fig. 9 Shown is a second three-dimensional structural schematic diagram of the pressing die switching assembly of the present invention;

[0029] Fig.10 Shown is a first three-dimensional structural schematic diagram of the pressing mold picking assembly of the present invention;

[0030] Fig.11 The second stereoscopic structure schematic diagram of the pressing mold picking assembly of the present invention is shown;

[0031] Fig.12 Shown is a schematic diagram of the three-dimensional structure of the pressing mold rotating assembly of the present invention.

[0032] Description of reference numerals: 1, bracket assembly; 2, adjustment assembly; 3, feeding assembly; 4, switching assembly; 5, grabbing assembly; 6, taking assembly; 7, rotating assembly; 101, fixed bracket; 102, connecting seat; 103, guide groove; 104, supporting seat; 105, positioning ring; 106, motor frame; 107, first motor; 201, driving wheel; 202, rotating sprocket; 203, fixed chain block; 204, connecting piece; 205, sliding frame; 206, ring slide rail; 207, connecting block; 208, guide wheel; 209, fixed module; 210, driven wheel; 301, fixed plate; 302, connecting frame; 303, positioning frame; 304, fixed support plate; 305, feed box; 306, feed pipe; 307, first electric push rod; 308, push plate; 309, connecting box plate; 310, first hydraulic push rod; 311, positioning guide rod; 401, connecting tooth plate; 402, positioning groove; 403, first positioning block; 404, fixed rod; 405, reset spring; 406, second positioning block; 407, upper pressure block ; 408, first meshing wheel; 409, synchronization rod; 410, second meshing wheel; 411, synchronization wheel; 412, conveyor belt; 413, second motor; 414, top block bottom plate; 415, moving plate; 416, top rod groove; 417, lower top block; 418, push rod rack; 419, second hydraulic push rod; 420, vacuum suction cup; 421, moving top strip; 501, grabbing frame; 502, connecting column; 503, screw guide rail; 504, screw slider; 505, bidirectional slide rail; 506, bidirectional screw ; 507, adjusting block; 508, clamping piece; 601, fixed column; 602, connecting column plate; 603, moving frame; 604, adjusting frame; 605, third hydraulic push rod; 606, second electric push rod; 607, engaging plate; 608, rotating wheel; 609, driving wheel; 610, driving clamp; 611, fixed clamp head; 612, positioning shaft; 613, connecting column frame; 701, fixed shaft; 702, guide frame; 703, limiting groove; 704, toggle rod; 705, toggle rotating wheel; 706, third motor. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0034] A powder metallurgy pressing die, according to Figure 1-12As shown, it includes a bracket assembly 1; an adjustment assembly 2 is arranged on the inner side of the bracket assembly 1; the bracket assembly 1 includes a motor frame 106; a first motor 107 is installed at the lower end of the motor frame 106; a positioning ring 105 is installed on the motor frame 106; the adjustment assembly 2 includes a driving wheel 201; the first motor 107 and the driving wheel 201 are arranged to be rotatably connected through a rotating shaft; a driven wheel 210 is arranged on one side of the driving wheel 201; two rotating sprockets 202 are arranged at the lower end of the driving wheel 201; the driven wheel 210 is connected to a rotating sprocket 202 at one end 02 is connected by bolts; a plurality of fixed chain blocks 203 are arranged on the outer side of the driven wheel 210; a connecting piece 204 is rotatably connected between two adjacent fixed chain blocks 203; a plurality of sliding frames 205 are slidably connected to the positioning ring 105; the sliding frame 205 is connected to the fixed chain block 203 by bolts; a ring slide rail 206 is arranged at the lower end of the sliding frame 205; a guide wheel 208 is rotatably connected to the lower end surface of the sliding frame 205; a connecting block 207 is installed on the sliding frame 205; a fixing module 209 is magnetically connected to the connecting block 207.

[0035] A fixing bracket 101 is disposed outside the positioning ring 105 ; a connecting seat 102 is installed on one side of the fixing bracket 101 ; a guide groove 103 is disposed at the upper end of the connecting seat 102 ; and two supporting seats 104 are installed at the lower end of the fixing bracket 101 .

[0036] A feed assembly 3 is installed on one side of the bracket assembly 1; the feed assembly 3 includes a fixed plate 301; a connecting frame 302 is fixedly connected to one side of the fixed plate 301; a positioning frame 303 is installed on the connecting frame 302; a fixed support plate 304 is fixedly connected to one side of the connecting frame 302; a feed box 305 is slidably connected to the inner side of the fixed support plate 304; a feed pipe 306 is fixedly connected to the feed box 305; a first electric push rod 307 is installed on the feed box 305; a push plate 308 is installed on the first electric push rod 307; a connecting box plate 309 is installed at the lower end of the feed box 305; a first hydraulic push rod 310 is installed on one side of the connecting box plate 309; a positioning guide rod 311 is provided at the front and rear ends of the first hydraulic push rod 310; the positioning guide rod 311 and the connecting box plate 309 are configured to be slidably connected; the first hydraulic push rod 310 is connected to the fixed bracket 101 by bolts.

[0037] A switching component 4 is provided at the upper end of the feeding component 3; the switching component 4 includes a connecting tooth plate 401; a plurality of positioning grooves 402 are opened on the connecting tooth plate 401; a first positioning block 403 is slidably connected to the inner side of the positioning groove 402; a fixing rod 404 is installed at the upper end of the first positioning block 403; a return spring 405 is provided at the outer side of the fixing rod 404; a second positioning block 406 is provided at the upper end of the return spring 405; a movable top strip 421 is provided at the outer side of the second positioning block 406; an upper pressure block 407 is installed at the lower end of the first positioning block 403; a first meshing wheel 408 is provided on one side of the connecting tooth plate 401; a synchronization rod 409 is installed on the first meshing wheel 408; a second meshing wheel 410 is installed at the outer side of the synchronization rod 409.

[0038] A synchronous rotating wheel 411 is installed at the upper end of the second meshing wheel 410; the outer side of the synchronous rotating wheel 411 is rotatably connected to a conveyor belt 412; the lower end of the front end synchronization rod 409 is rotatably connected to the second motor 413 through a coupling; a top block bottom plate 414 is installed on one side of the second motor 413; a movable plate 415 is provided at the upper end of the top block bottom plate 414; a plurality of top rod grooves 416 are opened on the movable plate 415; a plurality of lower top blocks 417 are provided at the upper end of the movable plate 415; a push rod frame 418 is installed at the lower end of the top block bottom plate 414; a second hydraulic push rod 419 is installed on the push rod frame 418; a vacuum suction cup 420 is installed at the upper end of the second hydraulic push rod 419.

[0039] A grabbing assembly 5 is provided at the front end of the bracket assembly 1; the grabbing assembly 5 includes a screw rail 503; a screw slider 504 is provided on the screw rail 503; a connecting column 502 is installed on the upper end of the screw slider 504; and a grabbing frame 501 is installed on one side of the connecting column 502.

[0040] A bidirectional slide rail 505 is provided at the lower end of the grab frame 501; a bidirectional screw rod 506 is provided on the inner side of the bidirectional slide rail 505; the thread directions of the front and rear ends of the bidirectional screw rod 506 are set to be opposite; the outer clearance of the bidirectional screw rod 506 is fitted with two adjustment blocks 507; and a clamping piece 508 is installed on the adjustment block 507.

[0041] A picking assembly 6 is installed on the other side of the bracket assembly 1; the picking assembly 6 includes a connecting column frame 613; the connecting column frame 613 is connected to the fixed bracket 101 by bolts; the upper end of the connecting column frame 613 is rotatably connected to the fixed column 601; a connecting column plate 602 is installed on the fixed column 601; a second electric push rod 606 is installed on the connecting column plate 602; moving frames 603 are installed on both sides of the connecting column plate 602; the inner side of the moving frame 603 is slidably connected to the adjusting frame 604; the upper end of the adjusting frame 604 is installed with a third hydraulic push rod 605.

[0042] An engaging plate 607 is installed at the lower end of the third hydraulic push rod 605; a rotating wheel 608 is provided at the front and rear ends of the engaging plate 607; the rotating wheel 608 is rotatably connected to the adjusting frame 604 through a rotating shaft; a driving wheel 609 is installed on one side of the rotating wheel 608; a driving clamp 610 is provided at the lower end of the driving wheel 609; a fixed clamp 611 is installed on the driving clamp 610; a positioning shaft 612 is slidably connected to the inner side of the driving clamp 610.

[0043] A rotating assembly 7 is provided at the lower end of the picking assembly 6; the rotating assembly 7 includes a fixed shaft 701; the fixed shaft 701 is connected to the fixed column 601 by bolts; a guide frame 702 is installed at the lower end of the fixed shaft 701; a limiting groove 703 is provided on the guide frame 702; a toggle wheel 705 is provided at the lower end of the guide frame 702; two toggle rods 704 are installed at the upper end of the toggle wheel 705; the lower end of the toggle wheel 705 is rotatably connected to a third motor 706 via a rotating shaft.

[0044] During operation, the switching component 4 and the grabbing component 5 are respectively installed on the equipment and the ground, the metal powder is fed into the feed box 305 through the feed pipe 306, the connecting box plate 309 is driven to move by the first hydraulic push rod 310, so that the connecting box plate 309 can drive the feed box 305 to move, and the push plate 308 is driven to move by the first electric push rod 307, so that the push plate 308 can feed the metal powder into the fixed module 209, and the powder entering the fixed module 209 can be combined and formed by pressure under the action of the upper pressure block 407 and the lower top block 417, so as to realize the production of the workpiece.

[0045] When the user uses the pressing mold, the first motor 107 can be used to drive the active wheel 201 to rotate, and the rotating active wheel 201 can be used to drive the driven wheel 210 to rotate, so that the driven wheel 210 can drive the rotating sprocket 202 to rotate, and then the rotating rotating sprocket 202, the fixed chain block 203 and the connecting piece 204 can be used to synchronously drive another rotating sprocket 202 to rotate, so that the fixed chain block 203 can drive multiple sliding frames 205 to slide on the ring slide rail 206, and the fixed module 209 magnetically connected to the sliding frame 205 can be moved and adjusted, so that the multiple fixed modules 209 can be adjusted in a rotary manner, so as to realize uninterrupted switching of the fixed modules 209, and the pressing mold can realize the pressing production of workpieces of different shapes in a single startup process.

[0046] At the same time, the third hydraulic push rod 605 can also be used to drive the engaging plate 607 to move downward, so that the engaging plate 607 can drive the rotating wheel 608 to rotate, and the rotating rotating wheel 608 can drive the driving wheel 609 to rotate, so that the driving clamp 610 can be driven to move on the positioning shaft 612 through the rotating driving wheel 609, so that the fixed clamp 611 installed on the driving clamp 610 can clamp the fixed module 209, and the second electric push rod 606 can be used to drive the adjusting frame 604 to move in the moving frame 603, so that the fixed module 209 clamped on the fixed clamp 611 can be moved into the guide groove 103, so that the fixed module 209 can be separated from the connecting block 207, so that the fixed module 209 can be taken out, and then the rotating fixed module 209 can be replaced to achieve the state adjustment of the production workpiece.

[0047] Through the above steps, by setting up a special rotary module circulation structure, the pressing die can continuously change the shape of the workpiece to be manufactured during operation, so as to solve the problem that the existing pressing die can only produce workpieces of a single shape due to a single production range during use, and when producing workpieces of different shapes, the forming die needs to be replaced, which can easily affect the production efficiency of the entire powder metallurgy process.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A powder metallurgy pressing die, comprising a support assembly (1); characterized in that: An adjustment component (2) is arranged on the inner side of the support component (1); the support component (1) comprises a motor frame (106); a first motor (107) is mounted on the lower end of the motor frame (106); a positioning ring (105) is mounted on the motor frame (106); the adjustment component (2) comprises a driving wheel (201); the first motor (107) and the driving wheel (201) are rotatably connected via a rotating shaft; a driven wheel (210) is arranged on one side of the driving wheel (201); two rotating sprockets (202) are arranged at the lower end of the driving wheel (201); the driven wheel (210) is connected to the rotating sprocket (202) at one end via bolts; a plurality of fixed The invention relates to a chain block (203); a connecting piece (204) is rotatably connected between two adjacent fixed chain blocks (203); a plurality of sliding frames (205) are slidably connected to the positioning ring (105); the sliding frames (205) are connected to the fixed chain block (203) by bolts; a ring slide rail (206) is provided at the lower end of the sliding frame (205); a guide wheel (208) is rotatably connected to the lower end surface of the sliding frame (205); a connecting block (207) is installed on the sliding frame (205); a fixing module (209) is magnetically connected to the connecting block (207); a feeding assembly (3) is installed on one side of the bracket assembly (1); the feeding assembly (3) comprises a fixing plate (301); the fixing plate (3 01) is fixedly connected to one side of a connecting frame (302); a positioning frame (303) is installed on the connecting frame (302); a fixed support plate (304) is fixedly connected to one side of the connecting frame (302); a feed box (305) is slidably connected to the inner side of the fixed support plate (304); a feed pipe (306) is fixedly connected to the feed box (305); a first electric push rod (307) is installed on the feed box (305); a push plate (308) is installed on the first electric push rod (307); a box connecting plate (309) is installed at the lower end of the feed box (305); a first hydraulic push rod (310) is installed on one side of the box connecting plate (309); a fixed support plate (304) is provided at the front and rear ends of the first hydraulic push rod (310); The positioning guide rod (311) is arranged to be slidably connected with the connecting box plate (309); the first hydraulic push rod (310) is connected with the fixed bracket (101) by bolts; the upper end of the feeding assembly (3) is provided with a switching assembly (4); the switching assembly (4) comprises a connecting tooth plate (401); a plurality of positioning grooves (402) are provided on the connecting tooth plate (401); a first positioning block (403) is slidably connected to the inner side of the positioning groove (402); a fixing rod (404) is installed at the upper end of the first positioning block (403); a return spring (405) is arranged on the outer side of the fixing rod (404); a second positioning block (406) is arranged at the upper end of the return spring (405);A movable top strip (421) is arranged on the outer side of the second positioning block (406); an upper pressing block (407) is installed on the lower end of the first positioning block (403); a first meshing wheel (408) is arranged on one side of the connecting tooth plate (401); a synchronization rod (409) is installed on the first meshing wheel (408); and a second meshing wheel (410) is installed on the outer side of the synchronization rod (409). ; 2. A powder metallurgy pressing die according to claim 1, characterized in that: A fixing bracket (101) is arranged outside the positioning ring (105); a connecting seat (102) is installed on one side of the fixing bracket (101); a guide groove (103) is arranged at the upper end of the connecting seat (102); and two supporting seats (104) are installed at the lower end of the fixing bracket (101).

3. A powder metallurgy pressing die according to claim 1, characterized in that: A synchronous rotating wheel (411) is installed at the upper end of the second meshing wheel (410); the outer side of the synchronous rotating wheel (411) is rotatably connected to a conveyor belt (412); the lower end of the front end synchronous rod (409) is rotatably connected to the second motor (413) through a coupling; a top block bottom plate (414) is installed on one side of the second motor (413); a movable plate (415) is arranged at the upper end of the top block bottom plate (414); a plurality of top rod grooves (416) are opened on the movable plate (415); a plurality of lower top blocks (417) are arranged at the upper end of the movable plate (415); a push rod frame (418) is installed at the lower end of the top block bottom plate (414); a second hydraulic push rod (419) is installed on the push rod frame (418); and a vacuum suction cup (420) is installed at the upper end of the second hydraulic push rod (419).

4. A powder metallurgy pressing die according to claim 1, characterized in that: A grab assembly (5) is provided at the front end of the support assembly (1); the grab assembly (5) comprises a screw rail (503); a screw slider (504) is provided on the screw rail (503); a connecting column (502) is installed at the upper end of the screw slider (504); and a grab frame (501) is installed on one side of the connecting column (502).

5. A powder metallurgy pressing die according to claim 4, characterized in that: A bidirectional slide rail (505) is arranged at the lower end of the grabbing frame (501); a bidirectional screw rod (506) is arranged on the inner side of the bidirectional slide rail (505); the screw threads of the front and rear ends of the bidirectional screw rod (506) are arranged in opposite directions; two adjustment blocks (507) are fitted in the outer clearance of the bidirectional screw rod (506); and a clamping piece (508) is installed on the adjustment block (507).

6. A powder metallurgy pressing die according to claim 2, characterized in that: A picking assembly (6) is installed on the other side of the support assembly (1); the picking assembly (6) comprises a connecting column frame (613); the connecting column frame (613) is connected to the fixed support (101) by bolts; the upper end of the connecting column frame (613) is rotatably connected to the fixed column (601); a connecting column plate (602) is installed on the fixed column (601); a second electric push rod (606) is installed on the connecting column plate (602); a moving frame (603) is installed on both sides of the connecting column plate (602); an adjusting frame (604) is slidably connected to the inner side of the moving frame (603); and a third hydraulic push rod (605) is installed on the upper end of the adjusting frame (604).

7. A powder metallurgy pressing die according to claim 6, characterized in that: An engaging plate (607) is installed at the lower end of the third hydraulic push rod (605); a rotating wheel (608) is provided at the front and rear ends of the engaging plate (607); the rotating wheel (608) is rotatably connected to the adjustment frame (604) via a rotating shaft; a driving wheel (609) is installed at one side of the rotating wheel (608); a driving clamp (610) is provided at the lower end of the driving wheel (609); a fixed clamp (611) is installed on the driving clamp (610); and a positioning shaft (612) is slidably connected to the inner side of the driving clamp (610).

8. A powder metallurgy pressing die according to claim 6, characterized in that: A rotating assembly (7) is arranged at the lower end of the picking assembly (6); the rotating assembly (7) comprises a fixed shaft (701); the fixed shaft (701) is connected to the fixed column (601) by bolts; a guide frame (702) is installed at the lower end of the fixed shaft (701); a limiting groove (703) is provided on the guide frame (702); a toggle wheel (705) is arranged at the lower end of the guide frame (702); two toggle rods (704) are installed at the upper end of the toggle wheel (705); and the lower end of the toggle wheel (705) is rotatably connected to a third motor (706) via a rotating shaft.

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