Powder metallurgy processing equipment and processing method thereof

Abstract

The invention relates to the technical field of powder metallurgy, in particular to powder metallurgy machining equipment and a machining method thereof. The method comprises the following steps that firstly, metal powder is fed into a powder compression mold frame through a feeding assembly; secondly, in the feeding process, a powder uniform laying assembly receives metal powder and adds the metal powder to a powder compression mold frame; and thirdly, after the metal powder materials are added into the powder compression mold base, the powder compression mold base moves towards the lifting mold and the bearing disc for pressing, then the metal powder materials are repeatedly added two to three times for multiple pressing, and in the metal powder feeding process, redundant metal powder can fall into the lifting mold and the bearing disc. Vibration feeding can be carried out in the powder feeding process, it is guaranteed that more gas in powder escapes, the powder is more compact, and the strength of the generated structure is higher in the pressing process. And in the feeding process, redundant powder can be collected and recycled, and it can be guaranteed that materials are not wasted.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy, and in particular to a powder metallurgy processing device and a processing method thereof. Background Art

[0002] Metal powder metallurgy is a process technology that uses molding and sintering processes to support metal powder materials and products. It is a very commonly used process technology in the field of modern metal processing and is mostly used to produce alloy products.

[0003] However, since the raw materials are directly stamped from metal powder, the metal powder will not be arranged tightly during the feeding process, resulting in loose bonding inside the workpiece after stamping, which will cause the workpiece to have low strength after stamping and affect the quality of the workpiece. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a powder metallurgy processing equipment including a feeding assembly, a powder compression mold frame, a lifting mold and a supporting tray, a push mold sweeping assembly, a powder evenly spreading assembly, a vibration feeding assembly and a sintering furnace, wherein the feeding assembly is arranged on the powder compression mold frame, and two lifting molds and the supporting tray are slidably connected to the powder compression mold frame, the push mold sweeping assembly is arranged on the powder compression mold frame, the push mold sweeping assembly is slidably connected to the two lifting molds and the supporting tray, the vibration feeding assembly is in conflict with the powder compression mold frame, the two powder evenly spreading assemblies are arranged on the powder compression mold frame, and the sintering furnace is arranged on the powder compression mold frame, and the powder evenly spreading assembly can push the lifting mold and the supporting tray into the sintering furnace, and the sintering furnace supports the lifting mold and the supporting tray.

[0006] Furthermore, the powder compression mold frame includes a support frame, a hydraulic rod, a guide rod, an upper die, a lower die shell and a pressing groove. Two hydraulic rods are provided on the support frame, and multiple guide rods are provided on the support frame. The two upper dies are respectively slidably connected to the multiple guide rods. The two upper dies are respectively fixed to the output ends of the two hydraulic rods. The two upper dies are respectively slidably connected to the two lower die shells. The lower ends of the multiple guide rods are fixed to the lower die shells, and the two lower die shells are provided with pressing grooves.

[0007] Furthermore, the feeding assembly includes a feeding cylinder and a recovery chamber, two feeding cylinders are provided, both of which are arranged on a support frame, and the recovery chamber is arranged on the support frame.

[0008] Furthermore, the lifting mold and the supporting plate include a movable lower mold, a bottom pressing support frame, buffer legs, buffer springs and a bottom hydraulic straight rod. The bottoms of the two movable lower molds are each provided with a bottom pressing support frame. The two bottom pressing support frames are each fixedly connected with a plurality of buffer legs. The plurality of buffer legs are each sleeved with buffer springs. The bottoms of the two bottom pressing support frames are respectively fixedly connected with two bottom hydraulic straight rods. The two bottom hydraulic straight rods are both fixedly connected to the support frame.

[0009] Furthermore, the push die material sweeping assembly includes a driving motor, a driving screw, a connecting seat, a residual material inclined sweeping plate and a supporting bracket. The driving motor is fixedly connected to the supporting bracket, the driving screw is rotatably connected to the supporting bracket, the driving screw is fixedly connected to the output shaft of the driving motor, the connecting seat is slidably connected to the supporting bracket, the connecting seat and the driving screw are transmitted by threads, the two residual material inclined sweeping plates are both fixedly connected to the connecting seat, the two residual material inclined sweeping plates are respectively fixedly connected to the two supporting brackets, and the length of the supporting bracket exceeds the length of the residual material inclined sweeping plate.

[0010] Furthermore, the powder evenly spreading assembly includes a powder receiving plate, a rotation adjustment shaft, an adjustment connecting seat, an angle adjustment rod sleeve, an angle adjustment screw rod, a telescopic rod, a blocking outer wall, a transmission gear, a driving gear, a lifting screw rod, a lifting guide rail and a feeding moving motor. Two rotation adjustment shafts are arranged on the powder receiving plate, and two blocking outer walls are arranged on the two powder receiving plates. Both ends of the two rotation adjustment shafts are rotatably connected with adjustment connecting seats, and multiple adjustment connecting seats are respectively fixedly connected with multiple angle adjustment screw rods, and multiple angle adjustment screw rods are respectively transmitted with multiple angle adjustment rod sleeves through threads. Multiple angle adjustment rod sleeves are rotatably connected to the support frame, and transmission gears are arranged on the multiple angle adjustment rod sleeves. The transmission gears are meshed with the driving gears for transmission, and the multiple driving gears are respectively fixedly connected to the bottoms of the multiple lifting screw rods. The multiple lifting screw rods are rotatably connected to the lifting guide rails. The multiple lifting screw rods are divided into two groups, and each group of lifting screw rods includes two lifting screw rods. The output shafts of the two feeding moving motors are respectively fixedly connected to the two angle adjustment screw rods, and the two feeding moving motors are both fixedly connected to the support frame.

[0011] Furthermore, the vibration feeding assembly includes a motor, a vibration generating shaft, a vibration disk, a snail-shaped bar, a vibration shaft, a wrapped shaft sleeve, a vibration spring, an shaft stabilizing sleeve, an inner cylinder, a vibration unloading box, a sliding block, a shock-absorbing spring and a shock-absorbing contact roller. The motor is fixedly connected to the support frame, the vibration generating shaft is fixedly connected to the output shaft of the motor, the vibration disk is rotatably connected to the vibration generating shaft, a plurality of snail-shaped bars are arranged on the vibration disk, the plurality of snail-shaped bars are arranged in a circular array, the two vibration shafts are both in conflict with the plurality of snail-shaped bars, the two vibration shafts are both sleeved with wrapped shaft sleeves, the two wrapped shaft sleeves are both arranged on the support frame, the two vibration springs are respectively sleeved on the two wrapped shaft sleeves, the shaft stabilizing sleeve is arranged on the support frame, the shaft stabilizing sleeve is sleeved on the vibration generating shaft, the plurality of vibration unloading boxes are all arranged in the shaft stabilizing sleeve, the plurality of vibration unloading boxes are all slidably connected with sliding blocks, the plurality of sliding blocks are respectively provided with springs between the corresponding vibration unloading boxes, the plurality of shock-absorbing contact rollers are respectively arranged between two sliding blocks corresponding to the same height, and the plurality of shock-absorbing contact rollers are all rollingly connected to the vibration generating shaft.

[0012] Furthermore, the sintering furnace comprises a sintering box, a heating plate and air flow holes. The sintering box is fixedly connected to a support frame. The heating plate is arranged in the sintering box. A plurality of air flow holes are arranged on the heating plate. The sintering box is arranged on the support frame.

[0013] Furthermore, a powder metallurgy processing device also relates to a powder metallurgy processing method, which comprises the following steps: Step 1: feeding metal powder into the powder compression die frame through the feeding assembly; Step 2: During the feeding process, the powder spreading component receives the metal powder and adds the metal powder to the powder compression mold frame; Step 3: After adding metal powder material to the powder compression mold frame, the powder compression mold frame moves to the lifting mold and the tray for pressing, and then the metal powder material is added two to three times for multiple pressing. During the metal powder feeding process, the excess metal powder will fall into the lifting mold and the tray. The lifting mold and the tray are lowered until they are in the position, and then the push mold sweeping assembly moves to push the excess metal powder into the recovery chamber. During the metal powder adding process, the vibration feeding assembly continues to vibrate, so that the air in the metal powder is discharged, making the metal powder more compact; Step 4: Then the push-die sweeping assembly moves, and the push-die sweeping assembly contacts the lifting die and the supporting tray, pushing the lifting die and the supporting tray close to the sintering furnace, and the worker separates the workpiece from the lifting die and the supporting tray and places the workpiece in the sintering furnace to complete the sintering and shaping.

[0014] The beneficial effects of the present invention are: (1) Vibration feeding can be performed during the powder feeding process. Multiple saturated metal powder feeding is used to ensure that the metal powder feeding is sufficient, so that the gas in the powder can be more dispersed, making the powder more compact and the strength of the structure higher during pressing.

[0015] (2) During multiple loading processes, excess powder can be collected and recycled to ensure that no material is wasted.

[0016] (3) Through the detachable lifting mold, the tray and the powder compression mold frame, the separation operation can be realized after the metal powder is pressed, which greatly reduces the manual operation of the workers. In addition, through the separation setting, the metal powder can be pressed by applying pressure synchronously from top to bottom, and the pressing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture: Figure 1 It is an overall diagram of the present invention; Figure 2 Another perspective of the overall diagram of the present invention; Figure 3 It is a schematic diagram of the connection between the feeding assembly and the powder compression mold frame of the present invention; Figure 4 For the present invention Figure 3 Partial magnification; Figure 5 It is a schematic diagram of the connection between the powder compression mold frame and the lifting mold and the support of the present invention; Figure 6 The lifting mold and the supporting tray of the present invention; Figure 7 It is a schematic diagram of the connection between the lifting mold, the supporting tray and the vibration feeding assembly of the present invention; Figure 8 The push die sweeping component of the present invention; Fig. 9 It is the powder evenly spreading component of the present invention; Fig.10 For the present invention Fig. 9 Partial magnification; Fig.11 A sintering furnace according to the present invention; Fig.12 It is the vibration filling component of the present invention.

[0020] Fig.13 It is a cross-sectional view of the vibration filling assembly of the present invention.

[0021] Fig.14 For the present invention Fig.13 Partial enlarged image.

[0022] In the figure: feeding assembly 1; powder compression mold frame 2; lifting mold and support tray 3; push mold sweeping assembly 4; powder evenly spreading assembly 5; vibration feeding assembly 6; sintering furnace 7; support frame 21; hydraulic rod 22; guide rod 23; upper pressing mold 24; lower pressing mold shell 25; pressing groove 26; feeding cylinder 11; recovery chamber 12; movable lower mold 31; bottom pressing support frame 32; buffer support leg 33; buffer spring 34; bottom hydraulic straight rod 35; drive motor 41; drive screw rod 42; connecting seat 43; residual material inclined Sweeping plate 44; supporting bracket 45; powder receiving plate 51; rotating adjustment shaft 52; adjusting connecting seat 53; angle adjustment rod sleeve 55; angle adjustment screw rod 54; telescopic rod 56; blocking outer wall 57; transmission gear 58; driving gear 59; lifting screw rod 510; lifting guide rail 511; feeding moving motor 514; motor 61; vibration generating shaft 62; vibration plate 63; spiral bar 64; vibration shaft 65; wrapped shaft sleeve 66; vibration spring 67; sintering box 71; heating plate 72; air flow hole 73. DETAILED DESCRIPTION

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0024] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0025] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0026] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0027] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] Specific embodiment 1: refer to Figure 1-14 As shown, a powder metallurgy processing equipment described in the present invention is characterized in that it includes a feeding component 1, a powder compression mold frame 2, a lifting mold and a tray 3, a push mold sweeping component 4, a powder evenly spreading component 5, a vibration feeding component 6 and a sintering furnace 7, the feeding component 1 is arranged on the powder compression mold frame 2, two lifting molds and the tray 3 are slidably connected to the powder compression mold frame 2, the push mold sweeping component 4 is arranged on the powder compression mold frame 2, the push mold sweeping component 4 is slidably connected to the two lifting molds and the tray 3, the vibration feeding component 6 conflicts with the powder compression mold frame 2, the two powder evenly spreading components 5 are arranged on the powder compression mold frame 2, and the sintering furnace 7 is arranged on the powder compression mold frame 2. The powder evenly spreading component 5 can push the lifting mold and the supporting tray 3 into the sintering furnace 7, and the sintering furnace 7 supports the lifting mold and the supporting tray 3; the metal powder material enters the powder compression mold frame 2 and the lifting mold and the supporting tray 3, and the upper mold and the lower mold for pressing a workpiece of a specific shape are fixed in the powder compression mold frame 2 and the lifting mold and the supporting tray 3 respectively. When in use, the powder compression mold frame 2 and the lifting mold and the supporting tray 3 are separated, and the powder evenly spreading component 5 is located between the powder compression mold frame 2 and the lifting mold and the supporting tray 3. The metal powder is fed by the feeding component 1, and the metal enters the powder evenly spreading component 5. Then, as the powder evenly spreading component 5 moves, the powder evenly spreading component 5 and The horizontal plane angle increases, allowing the metal powder to enter the lifting mold and the tray 3. At the same time, the vibration feeding component 6 generates vibrations and acts on the powder compression mold frame 2, generating vibrations during the feeding process to ensure that the metal powder is in closer contact, thereby producing a higher strength finished product after pressing. The sintering furnace 7 is preheated, and after the material is added, the powder compression mold frame 2 moves closer to the lifting mold and the tray 3 for pressing. After pressing, the feeding process is repeated two to three times to complete the required feeding and ensure that the size of the pressed workpiece meets the standard. In the subsequent two to three feeding processes, the vibration feeding component 6 continues to vibrate, and it is necessary to ensure that the feeding is excessive, and the excess powder or falls into the lifting mold. The mold and the tray 3 are in the mold, and then the lifting mold and the tray 3 are lowered until the lifting mold and the tray 3 move to the lowest point, and the mold pushing and sweeping assembly 4 is started, and the mold pushing and sweeping assembly 4 moves toward the lifting mold and the tray 3 until it contacts and slides into the lifting mold and the tray 3. After sliding in, the mold pushing and sweeping assembly 4 pushes the scattered metal powder on the lifting mold and the tray 3, so that the metal powder enters the feeding assembly 1, completing material recovery and avoiding material waste. With the movement of the mold pushing and sweeping assembly 4, the pressed workpiece in the lifting mold and the tray 3 and a part of the lifting mold and the tray 3 are pushed into the sintering furnace 7, and then sintered and further formed.

[0029] Specific embodiment 2: refer to Figure 1-14 As shown, the movement process of the upper die 24 during the feeding and pressing process of the invention; The powder compression mold frame 2 includes a support frame 21, a hydraulic rod 22, a guide rod 23, an upper die 24, a lower die shell 25 and a pressing groove 26. The support frame 21 is provided with two hydraulic rods 22, and a plurality of guide rods 23 are arranged on the support frame 21. The two upper dies 24 are respectively slidably connected to the plurality of guide rods 23. The two upper dies 24 are respectively fixed to the output ends of the two hydraulic rods 22. The two upper dies 24 are respectively slidably connected to the two lower die shells 25. The lower ends of the plurality of guide rods 23 are fixed to the lower die shell 25. The two lower dies 24 are respectively slidably connected to the two lower die shells 25. The mold shell 25 is provided with pressing grooves 26. In the initial state, the hydraulic rod 22 is in a retracted state, and the upper mold 24 is at the highest position, which can facilitate loading. The guide rod 23 guides the movement of the upper mold 24. When it is necessary to press metal powder, the hydraulic rod 22 extends to push the upper mold 24 to move toward the lower mold shell 25 under the guidance of multiple guide rods 23, wherein the upper mold 24 is used to install the upper mold for pressing the workpiece. As the upper mold 24 contacts the lower mold shell 25, the process of pressing the metal powder begins.

[0030] Specific embodiment three: refer to Figure 1-14 As shown, it is the feeding process of the invention; The feeding component 1 includes a feeding barrel 11 and a recovery chamber 12. Two feeding barrels 11 are provided, and the two feeding barrels 11 are both arranged on a support frame 21. The recovery chamber 12 is arranged on the support frame 21. Metal powder is added through the two feeding barrels 11, and the metal powder falls onto the powder evenly spread component 5. When the metal powder is fed, excessive feeding is adopted to ensure that the metal powder can be fully spread at all times. The excess metal powder finally falls into the recovery chamber 12 to complete material recovery, and can be used in subsequent processing processes to save raw materials.

[0031] Specific embodiment 4: Reference Figure 1-14 As shown, it is the process of pressing metal powder and the process of moving the formed workpiece after pressing; The lifting mold and the supporting tray 3 include a movable lower mold 31, a bottom pressing support frame 32, a buffer leg 33, a buffer spring 34 and a bottom hydraulic straight rod 35. The bottoms of the two movable lower molds 31 are each provided with a bottom pressing support frame 32. The two bottom pressing support frames 32 are each fixedly connected with a plurality of buffer legs 33. The plurality of buffer legs 33 are each sleeved with a buffer spring 34. The bottoms of the two bottom pressing support frames 32 are respectively fixedly connected with two bottom hydraulic straight rods 35. The two bottom hydraulic straight rods 35 are both fixedly connected to the support frame 21. The lower mold for pressing into a workpiece and the corresponding mold core are installed in the movable lower mold 31. There is a gap between the movable lower mold 31 and the lower pressing mold shell 25, which can make excess metal powder fall into the bottom pressing support frame 32. When supporting the movable lower die 31, 32 can retain a certain distance so that the push die sweeping assembly 4 can be inserted between the movable lower die 31 and the bottom pressing support frame 32. When pressing is completed, the bottom hydraulic straight rod 35 is fully extended for support. After pressing, the bottom hydraulic straight rod 35 is contracted to the shortest. At this time, the movable lower die 31 is at the lowest point, and the push die sweeping assembly 4 moves (when the bottom pressing support frame 32 supports the movable lower die 31, the part close to the push die sweeping assembly 4 can limit the movable lower die 31 in the horizontal direction, and the part away from the push die sweeping assembly 4 only plays a supporting role, so that the push die sweeping assembly 4 can push the movable lower die 31 to move), the push die sweeping assembly 4 pushes the movable lower die 31 to move to the sintering furnace 7 for sintering.

[0032] Specific embodiment 5: refer to Figure 1-14 As shown, it is a process of moving the movable lower die 31 and simultaneously cleaning the excess metal powder; The push die sweeping assembly 4 includes a driving motor 41, a driving screw 42, a connecting seat 43, a residual material inclined sweeping plate 44 and a supporting bracket 45. The driving motor 41 is fixedly connected to the supporting frame 21, the driving screw 42 is rotatably connected to the supporting frame 21, the driving screw 42 is fixedly connected to the output shaft of the driving motor 41, the connecting seat 43 is slidably connected to the supporting frame 21, the connecting seat 43 and the driving screw 42 are transmitted by threads, the two residual material inclined sweeping plates 44 are both fixedly connected to the connecting seat 43, the two residual material inclined sweeping plates 44 are respectively fixedly connected to the two supporting brackets 45, the length of the supporting bracket 45 exceeds the length of the residual material inclined sweeping plate 44, the driving motor 41 is started, the driving screw 42 rotates, and the connecting seat 43 moves under the push of the threads and the limiting action of the connecting seat 43 by the supporting frame 21, driving the residual material inclined sweeping plate 44 and the supporting bracket 45. The support frame 45 moves, and with the movement of the residual material inclined sweeping plate 44 and the supporting frame 45, the supporting frame 45 slides into the corresponding bottom of the movable lower mold 31, and then the residual material inclined sweeping plate 44 slides into the bottom pressing support frame 32 (wherein the supporting frame 45 contacts the lower end surface of the movable lower mold 31, and the residual material inclined sweeping plate 44 contacts the bottom pressing support frame 32). As the movement progresses, the residual material inclined sweeping plate 44 moves a distance greater than the bottom surface of the bottom pressing support frame 32, and the metal powder on it is completely pushed out and falls into the recovery chamber 12. Then the supporting frame 45 carries the movable lower mold 31 to move, and the movable lower mold 31 is moved into the sintering furnace 7. Subsequently, the movable lower mold 31 is moved through the operation of the workers, and the workpiece therein is placed in the sintering furnace 7 to complete the subsequent sintering, which can reduce the distance that the workpiece is moved to the sintering furnace 7 and facilitate the operation of the workers.

[0033] Specific embodiment six: reference Figure 1-14 As shown, it is the process of uniformly laying the powder material according to the present invention; The powder evenly spreading assembly 5 includes a powder receiving plate 51, a rotating adjustment shaft 52, an adjustment connection seat 53, an angle adjustment rod sleeve 55, an angle adjustment screw rod 54, a telescopic rod 56, a blocking outer wall 57, a transmission gear 58, a driving gear 59, a lifting screw rod 510, a lifting guide rail 511 and a feeding moving motor 514. Two rotating adjustment shafts 42 are provided on the powder receiving plate 51, and two blocking outer walls 57 are provided on the two powder receiving plates 51. Both ends of the two rotating adjustment shafts 52 are rotatably connected to the adjustment connection seat 53, and multiple adjustment connection seats 53 are respectively fixedly connected to a plurality of angle adjustment screw rods 54, and the plurality of angle adjustment screw rods 54 are respectively connected to a plurality of angle adjustment rod sleeves 55 through threaded transmission, and the plurality of angle adjustment rod sleeves 55 are all rotatably connected to the support frame 21, and the plurality of angle adjustment rod sleeves 55 are all provided with transmission gears 58, and the transmission gears 58 are meshed with the driving gears 59 for transmission, and the plurality of driving gears 59 are respectively fixedly connected to the bottom of the plurality of lifting screw rods 510, and the plurality of lifting screw rods 510 are all rotatably connected to the lifting guide rail 511, and the plurality of lifting screw rods 510 are divided into two groups, and each group of lifting screw rods 51 0 includes two lifting screw rods 510, and the output shafts of two feeding moving motors 514 are respectively fixed to two angle adjustment screw rods 55. The two feeding moving motors 514 are fixed to the support frame 21. In the initial state, the feeding barrel 11 is located at one-third of the powder receiving plate 51. As the metal powder continues to fall, the feeding moving motor 514 is started, so that the angle adjustment rod sleeve 55 rotates. The angle adjustment rod sleeve 55 is restricted by the adjustment connection seat 53. Therefore, the angle adjustment rod sleeve 55 can push the angle adjustment screw rod 54 to move, thereby generating a force to push the powder. The effect of the movement of the receiving plate 51 and the rotation of the angle adjustment rod sleeve 55 and the transmission gear 58 drive the driving gear 59 meshing therewith to rotate, so that the lifting screw 510 rotates. Under the push of the thread and the limit of the lifting guide rail 511, the telescopic rod 56 rises, so that the inclination angle of the powder receiving plate 51 with the horizontal plane becomes larger, which can make the powder flow down faster and enter the lower mold installed with the movable lower mold 31. In the process of decreasing the amount of metal powder from large to small at the beginning of feeding, the inclination increases from small to large, which can ensure the uniform feeding of metal powder.

[0034] Specific embodiment seven: reference Figure 1-14 As shown, the invention is a process of vibrating during the feeding process to ensure the compactness of the metal powder and thus the strength of the workpiece. The vibration feeding assembly 6 includes a motor 61, a vibration generating shaft 62, a vibration disk 63, a volute bar 64, a vibration shaft 65, a wrapped shaft sleeve 66, a vibration spring 67, an shaft stabilizing sleeve 68, an inner cylinder 610, a vibration unloading box 611, a sliding block 612, a shock absorbing spring 613 and a shock absorbing contact roller 614. The motor 61 is fixedly connected to the support frame 21, the vibration generating shaft 62 is fixedly connected to the output shaft of the motor 61, the vibration disk 63 is rotatably connected to the vibration generating shaft 62, and a plurality of volute bars 64 are arranged on the vibration disk 63, and the plurality of volute bars 64 are arranged in a circular array. , the two vibration shafts 65 are in conflict with the multiple spiral bars 64, the two vibration shafts 65 are sleeved with a wrapping sleeve 66, the two wrapping sleeves 66 are arranged on the support frame 21, the two vibration springs 67 are respectively sleeved on the two wrapping sleeves 66, the shaft stabilizing sleeve 68 is arranged on the support frame 21, the shaft stabilizing sleeve 68 is sleeved on the vibration generating shaft 62, the multiple vibration relief boxes 611 are fixedly connected in the shaft stabilizing sleeve 68, the multiple vibration relief boxes 611 are slidably connected with sliding blocks 612, and springs are arranged between the multiple sliding blocks 612 and the corresponding vibration relief boxes 611, A plurality of shock-absorbing contact rollers 614 are respectively arranged between two sliding blocks 612 corresponding to the same height, and the shock-absorbing contact rollers 614 are rotatably connected to the sliding blocks 612, and the plurality of shock-absorbing contact rollers 614 are all rollingly connected to the vibration generating shaft 62; when loading, the motor 61 is started, the vibration generating shaft 62 rotates, the vibration plate 63 rotates, and the spiral strip 64 thereon rotates accordingly. Since there is a gap in the middle of the spiral strip 64, and the vibration spring 67 ensures that the vibration shaft 65 always has a force to stick to the spiral strip 64, when the spiral strip 64 rotates, the vibration shaft 65 is subjected to the vibration. The vibration is transmitted to the lower pressing mold shell 25, and then as the bottom pressing support frame 32 drives the movable lower mold 31 to move to the specified position (the bottom of the movable lower mold 31 is parallel to the bottom of the lower pressing mold shell 25), the bottom pressing support frame 32 contacts the lower pressing mold shell 25, so that the vibration is transmitted to the movable lower mold 31. When the metal powder falls into the movable lower mold 31, the low-density air in the high-density metal powder can be shaken out by vibration, so that the metal powder is arranged more densely, so that more metal powder is loaded in one feeding process, and the workpiece strength is guaranteed to be higher after pressing; When the vibration generating shaft 62 rotates, vibration will be generated due to the contact between the vibration disk 63 and the spiral bar 64. This vibration needs to be targeted at the loading process and will affect the sintering process. Therefore, shock absorption is performed by setting a shock-absorbing shaft stabilizing sleeve 68. Shock absorption is achieved by setting multiple shock-absorbing contact rollers 614 in contact with the vibration generating shaft 62. When vibration occurs, one of the multiple shock-absorbing contact rollers 614 is subjected to pressure, thereby squeezing the shock-absorbing spring 613 to relieve the impact of the vibration process. In addition, under the action of the shock-absorbing spring 613, the multiple shock-absorbing contact rollers 614 are always kept in contact with the vibration generating shaft 62, thereby effectively reducing the impact of vibration on other operations.

[0035] Specific embodiment eight: Figure 1-14 As shown, the sintering process of the invention is as follows: Furthermore, the sintering furnace 7 includes a sintering box 71, a heating plate 72 and airflow holes 73. The sintering box 71 is fixedly connected to the support frame 21, the heating plate 72 is arranged in the sintering box 71, and a plurality of airflow holes 73 are arranged on the heating plate 72. The sintering box 71 is arranged on the support frame 21, and the heating plate 72 has a heat conduction effect. The fine airflow holes 73 set by starting can ensure that the heat flow of sintering can contact more with the workpiece, thereby ensuring uniform sintering.

[0036] Specific embodiment eight: reference Figure 1-14 As shown, the invention is a method for metal powder metallurgy; A powder metallurgy processing device also relates to a powder metallurgy processing method, which comprises the following steps: Step 1: feeding metal powder into the powder compression die frame 2 through the feeding assembly 1; Step 2: During the feeding process, the powder spreading component 5 receives the metal powder and adds the metal powder to the powder compression mold frame 2; Step 3: After adding metal powder material to the powder compression mold frame 2, the powder compression mold frame 2 moves toward the lifting mold and the tray 3 for pressing, and then the metal powder material is repeatedly added two to three times for multiple pressing. During the metal powder feeding process, the excess metal powder will fall into the lifting mold and the tray 3. The lifting mold and the tray 3 are lowered until they are in position, and then the mold pushing and sweeping assembly 4 moves to push the excess metal powder into the recovery chamber 12. During the metal powder adding process, the vibration feeding assembly 6 continues to vibrate, so that the air in the metal powder is discharged, making the metal powder more compact; Step 4: Then the push-die sweeping assembly 4 is moved, and the push-die sweeping assembly 4 contacts the lifting die and the supporting tray 3, and the lifting die and the supporting tray 3 are pushed close to the sintering furnace 7. The worker separates the workpiece from the lifting die and the supporting tray 3 and places the workpiece in the sintering furnace 7 to complete the sintering and shaping.

[0037] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A powder metallurgy processing equipment, characterized in that: The invention comprises a feeding assembly (1), a powder compression mold frame (2), a lifting mold and a tray (3), a push mold sweeping assembly (4), a powder evenly spreading assembly (5), a vibration material replenishing assembly (6) and a sintering furnace (7), wherein the feeding assembly (1) is arranged on the powder compression mold frame (2), two lifting molds and the tray (3) are both slidably connected to the powder compression mold frame (2), the push mold sweeping assembly (4) is arranged on the powder compression mold frame (2), the push mold sweeping assembly (4) is slidably connected to the two lifting molds and the tray (3), the vibration material replenishing assembly (6) is in contact with the powder compression mold frame (2), the two powder evenly spreading assemblies (5) are both arranged on the powder compression mold frame (2), the sintering furnace (7) is arranged on the powder compression mold frame (2), the powder evenly spreading assembly (5) can push the lifting mold and the tray (3) into the sintering furnace (7), and the sintering furnace (7) supports the lifting mold and the tray (3).

2. A powder metallurgy processing equipment according to claim 1, characterized in that: The powder compression mold frame (2) comprises a support frame (21), a hydraulic rod (22), a guide rod (23), an upper die (24), a lower die shell (25) and a pressing groove (26). The support frame (21) is provided with two hydraulic rods (22), a plurality of guide rods (23) are all provided on the support frame (21), two upper dies (24) are respectively slidably connected to the plurality of guide rods (23), the two upper dies (24) are respectively fixed to the output ends of the two hydraulic rods (22), the two upper dies (24) are respectively slidably connected to the two lower die shells (25), the lower ends of the plurality of guide rods (23) are all fixed to the lower die shell (25), and the two lower die shells (25) are both provided with a pressing groove (26).

3. A powder metallurgy processing equipment according to claim 2, characterized in that: The feeding assembly (1) comprises a feeding cylinder (11) and a recovery chamber (12), two feeding cylinders (11) are provided, both feeding cylinders (11) are arranged on a support frame (21), and the recovery chamber (12) is arranged on the support frame (21).

4. A powder metallurgy processing equipment according to claim 3, characterized in that: The lifting mold and the supporting tray (3) comprise a movable lower mold (31), a bottom pressing support frame (32), a buffer leg (33), a buffer spring (34) and a bottom hydraulic straight rod (35). The bottoms of the two movable lower molds (31) are each provided with a bottom pressing support frame (32). The two bottom pressing support frames (32) are each fixedly connected to a plurality of buffer legs (33). The plurality of buffer legs (33) are each sleeved with a buffer spring (34). The bottoms of the two bottom pressing support frames (32) are each fixedly connected to two bottom hydraulic straight rods (35). The two bottom hydraulic straight rods (35) are each fixedly connected to the support frame (21).

5. A powder metallurgy processing equipment according to claim 4, characterized in that: The push die material sweeping assembly (4) comprises a driving motor (41), a driving screw (42), a connecting seat (43), a residual material oblique sweeping plate (44) and a supporting frame (45), wherein the driving motor (41) is fixedly connected to the supporting frame (21), the driving screw (42) is rotatably connected to the supporting frame (21), the driving screw (42) is fixedly connected to the output shaft of the driving motor (41), the connecting seat (43) is slidably connected to the supporting frame (21), the connecting seat (43) and the driving screw (42) are driven by threads, two residual material oblique sweeping plates (44) are both fixedly connected to the connecting seat (43), the two residual material oblique sweeping plates (44) are respectively fixedly connected to two supporting frames (45), and the length of the supporting frame (45) exceeds the length of the residual material oblique sweeping plate (44).

6. The powder metallurgy processing equipment according to claim 5, characterized in that: The powder evenly spreading assembly (5) comprises a powder receiving plate (51), a rotating adjustment shaft (52), an adjustment connection seat (53), an angle adjustment rod sleeve (55), an angle adjustment screw rod (54), a telescopic rod (56), a blocking outer wall (57), a transmission gear (58), a driving gear (59), a lifting screw rod (510), a lifting guide rail (511) and a feeding moving motor (514). Two rotating adjustment shafts (42) are arranged on the powder receiving plate (51), and two blocking outer walls (57) are arranged on the two powder receiving plates (51). Both ends of the two rotating adjustment shafts (52) are rotatably connected to the adjustment connection seats (53). The multiple adjustment connection seats (53) are respectively fixedly connected to the multiple angle adjustment screw rods (54). The multiple angle adjustment screw rods (55) are fixedly connected to the multiple angle adjustment screw rods (54). ) are respectively connected to the plurality of angle adjustment rod sleeves (55) through threaded transmission, the plurality of angle adjustment rod sleeves (55) are all rotatably connected to the support frame (21), the plurality of angle adjustment rod sleeves (55) are all provided with transmission gears (58), the transmission gears (58) are meshed with the driving gears (59) for transmission, the plurality of driving gears (59) are respectively fixed to the bottoms of the plurality of lifting screw rods (510), the plurality of lifting screw rods (510) are all rotatably connected to the lifting guide rail (511), the plurality of lifting screw rods (510) are divided into two groups, each group of lifting screw rods (510) includes two lifting screw rods (510), the output shafts of the two feeding moving motors (514) are respectively fixed to the two angle adjustment screw rods (55), and the two feeding moving motors (514) are both fixed to the support frame (21).

7. The powder metallurgy processing equipment according to claim 2, characterized in that: The vibration feeding assembly (6) comprises a motor (61), a vibration generating shaft (62), a vibration disk (63), a volute strip (64), a vibration shaft (65), a wrapping sleeve (66), a vibration spring (67), a shaft stabilizing sleeve (68), an inner cylinder (610), a vibration unloading box (611), a sliding block (612), a shock absorbing spring (613) and a shock absorbing contact roller (614). The motor (61) is fixedly connected to the support frame (21), the vibration generating shaft (62) is fixedly connected to the output shaft of the motor (61), the vibration disk (63) is rotatably connected to the vibration generating shaft (62), a plurality of volute strips (64) are arranged on the vibration disk (63), the plurality of volute strips (64) are arranged in a circular array, the two vibration shafts (65) are in contact with the plurality of volute strips (64), and the two A wrapping sleeve (66) is sleeved on the outside of the vibration shaft (65), the two wrapping sleeves (66) are arranged on the support frame (21), the two vibration springs (67) are sleeved on the two wrapping sleeves (66), the shaft stabilizing sleeve (68) is arranged on the support frame (21), the shaft stabilizing sleeve (68) is sleeved on the vibration generating shaft (62), a plurality of vibration relief boxes (611) are arranged in the shaft stabilizing sleeve (68), a sliding block (612) is slidably connected in the plurality of vibration relief boxes (611), a spring is arranged between the plurality of sliding blocks (612) and the corresponding vibration relief boxes (611), a plurality of damping contact rollers (614) are arranged between two corresponding sliding blocks (612) at the same height, and the plurality of damping contact rollers (614) are rollingly connected to the vibration generating shaft (62).

8. The powder metallurgy processing equipment according to claim 7, characterized in that: The sintering furnace (7) comprises a sintering box (71), a heating plate (72) and air flow holes (73); the sintering box (71) is fixedly connected to a support frame (21); the heating plate (72) is arranged in the sintering box (71); a plurality of air flow holes (73) are arranged on the heating plate (72); and the sintering box (71) is arranged on the support frame (21).

9. The powder metallurgy processing equipment according to claim 8 also relates to a powder metallurgy processing method, characterized in that: The method comprises the following steps: Step 1: feeding metal powder into the powder compression mold frame (2) through a feeding component (1); Step 2: During the feeding process, the powder spreading component (5) receives the metal powder and adds the metal powder to the powder compression mold frame (2); Step 3: After adding metal powder material to the powder compression mold frame (2), the powder compression mold frame (2) moves toward the lifting mold and the tray (3) for compression, and then repeats adding metal powder material two to three times for multiple compression. During the metal powder feeding process, excess metal powder will fall into the lifting mold and the tray (3). The lifting mold and the tray (3) are lowered until they are in the position, and then the mold pushing and sweeping assembly (4) moves to push the excess metal powder into the recovery chamber (12). During the metal powder adding process, the vibrating feeding assembly (6) continues to vibrate so that the air in the metal powder is discharged, making the metal powder more compact. Step 4: Then, the push-die sweeping assembly (4) is moved, and the push-die sweeping assembly (4) contacts the lifting die and the supporting tray (3), and the lifting die and the supporting tray (3) are pushed close to the sintering furnace (7). A worker separates the workpiece from the lifting die and the supporting tray (3) and places the workpiece in the sintering furnace (7), thereby completing the sintering and shaping.

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