A powder metallurgy parts surface floating powder blowing device

Abstract

A powder metallurgy part surface floating powder blowing device comprises a pressing and forming mechanism, a conveying workbench, a floating powder blowing box and a part centralizing turntable, wherein the pressing and forming mechanism, the conveying workbench and the part centralizing turntable are arranged in sequence, a first slide plate is movably connected to the end of the workbench of the pressing and forming mechanism, the other end of the first slide plate is arranged on the conveying workbench, the floating powder blowing box is arranged on the conveying workbench (2), a second slide plate is arranged on the part centralizing turntable, the two ends of the second slide plate are respectively connected to the conveying workbench and the part centralizing turntable, a part grabbing and flipping mechanism is also installed on the side of the conveying workbench, and the part grabbing and flipping mechanism is used to grab and take out the parts on the pressing and forming mechanism. The present invention is easy to use, and the floating powder blowing work can be completed during the automatic transportation process after pressing and forming, the floating powder blowing covers the whole area, no dead angle will be generated to affect the product quality, and the floating powder blowing efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy equipment, in particular to a powder metallurgy part surface floating powder blowing and brushing device. 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-metallic powder) as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. Powder metallurgy has a unique chemical composition and mechanical and physical properties that cannot be obtained by traditional melting and casting methods. It has been widely used in transportation, machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industries, and has become one of the most dynamic branches in new materials science. Powder metallurgy technology also has a series of advantages such as significant energy saving, material saving, excellent performance, high product precision and good stability, and is very suitable for mass production.

[0003] After powder metallurgy is pressed and formed, a layer of floating powder will always adhere to the entire surface. Direct sintering will seriously affect the product quality. Therefore, the floating powder needs to be removed after pressing and forming. However, it is not suitable to use a special process to remove the floating powder. It takes too much time. The longer the time, the harder it is for the floating powder to fall off, which will cause surface quality defects. It is usually necessary to complete the floating powder blowing and brushing work during the automatic transportation process after pressing and forming. However, due to the tight time of the process, the floating powder blowing and brushing often leads to incomplete coverage, which will cause dead corners and affect product quality. Summary of the invention

[0004] In order to make up for the shortcomings of existing powder metallurgy equipment, the present invention proposes a powder blowing device for the surface of powder metallurgy parts which has a simple structure and is easy to use. The floating powder blowing work can be completed during the automatic transportation process after pressing and forming. The floating powder blowing covers the entire surface and will not produce dead corners that affect product quality. The floating powder blowing efficiency is high.

[0005] The specific technical solutions are as follows:

[0006] A powder metallurgy part surface floating powder blowing and brushing device comprises a pressing and molding mechanism, a conveying workbench, a floating powder blowing and brushing box and a part concentration turntable, wherein the pressing and molding mechanism, the conveying workbench and the part concentration turntable are arranged in sequence, a first slide plate is movably connected to the end of the workbench of the pressing and molding mechanism, the other end of the first slide plate is arranged on the conveying workbench, the floating powder blowing and brushing box is arranged on the conveying workbench, a second slide plate is arranged on the part concentration turntable, the two ends of the second slide plate are respectively connected to the conveying workbench and the part concentration turntable, and a part grabbing and flipping mechanism is also installed on the side of the conveying workbench, the part grabbing and flipping mechanism is used to grab and take out the parts on the pressing and molding mechanism.

[0007] As an optimization: the pressing and forming mechanism is provided with a mounting frame, a forming press is provided on the top of the mounting frame, a pressing support base column is provided in the middle of the mounting frame, the output end of the forming press is arranged opposite to the top of the support base column, a liftable workbench is provided on the top of the support base column, a forming mold hole is provided in the middle of the liftable workbench, the support base column cooperates with the forming mold hole, a lifting and lowering driving hydraulic cylinder group is provided at the bottom of the mounting frame, and the output end of the lifting and lowering driving hydraulic cylinder group is connected to the bottom of the liftable workbench.

[0008] As an optimization: the part grabbing and flipping mechanism is composed of a sliding lifting device, a flipping device and a gripping device, the gripping device is used to grasp the parts on the pressing and forming mechanism, the gripping device is installed at the output end of the flipping device, the flipping device is installed at the output end of the sliding lifting device, and the sliding lifting device is installed on a liftable workbench;

[0009] The liftable workbench is provided with a mounting support frame, and the sliding lifting device is mounted on the liftable workbench through the mounting support frame.

[0010] As an optimization: the sliding lifting device includes a sliding device and a lifting device, the sliding device is provided with a sliding guide plate, a sliding seat is slidably provided on the sliding guide plate, the lifting device is provided on the sliding seat, a driving cylinder is provided at the end of the sliding guide plate, and the driving cylinder is fixedly provided at the end of the sliding guide plate;

[0011] The lifting device is provided with a lifting cylinder, which is installed on the sliding seat, the output end of the lifting cylinder is connected to a support plate, and the flipping device is arranged at the end of the support plate;

[0012] The flipping device is provided with a rotating cylinder, which is installed at the end of the supporting plate. The output end of the rotating cylinder is connected to a supporting rod, and the gripping device is installed at the end of the supporting rod.

[0013] As an optimization: the gripping device is provided with an installation shell, which is arranged at the end of the support rod, and two splints are installed in the installation shell, the front parts of the two splints form a clamp shape, one of the splints is movably arranged in the installation shell, and a control cylinder is arranged at the rear part of the other splint, and the output end of the control cylinder is fixedly connected to the movably arranged splint.

[0014] As an optimization: the conveying workbench is provided with a mounting frame, a conveying belt is provided on the top of the mounting frame, driving rollers are provided at both ends of the conveying belt, and the driving rollers are connected to a driving motor.

[0015] As an optimization: a floating powder centralized cleaning box is also arranged at the bottom of the mounting frame, and the opening of the floating powder centralized cleaning box is located at the floating powder blowing box body and the conveying end of the conveying belt.

[0016] As an optimization: the floating powder blowing box is provided with a box structure, an inlet and an outlet are opened at both ends of the box structure, and a front cleaning brush group and a rear cleaning brush group are respectively arranged at both ends of the box structure. The front cleaning brush group and the rear cleaning brush group are respectively arranged close to the inlet and the outlet, and an air pressure rotating cleaning device is also arranged in the middle of the box structure.

[0017] As an optimization: the pneumatic rotary cleaning device is provided with a pneumatic box, a pneumatic turntable is rotatably connected to the bottom of the pneumatic box, and rotary air blowing nozzles are evenly arranged around the pneumatic turntable, and all the rotary air blowing nozzles are used to perform rotary air blowing on the parts;

[0018] As an optimization: negative pressure dust removal boxes are arranged on both sides of the box structure. The bottom of the negative pressure dust removal box is hollow and is arranged opposite to the floating powder centralized cleaning box. A negative pressure generator is arranged in the negative pressure dust removal box to form negative pressure in the negative pressure dust removal box, and the floating powder in the floating powder blowing box is attracted into the negative pressure dust removal box and falls into the floating powder centralized cleaning box and will not float outside the floating powder blowing box at will.

[0019] As an optimization: the parts concentrating turntable includes a supporting tripod and a rotating motor, a circle of protective baffles is arranged on the top of the supporting tripod, a turntable is installed on the output end of the rotating motor, the protective baffle is arranged around the turntable, and a feed port platform and a discharge port platform are also arranged on the supporting tripod, the feed port platform and the discharge port platform are arranged opposite to each other, and an arc-shaped concentrating plate is arranged on the protective baffle, the arc-shaped concentrating plate is arranged close to the feed port platform, and the turntable rotates from the feed port platform, the discharge port platform and the arc-shaped concentrating plate in turn.

[0020] The beneficial effects of the present invention are: simple structure, convenient use, the floating powder blowing and brushing work can be completed in the automatic transportation process after pressing and forming, and the floating powder blowing and brushing efficiency is high;

[0021] The setting of the parts grabbing and flipping mechanism, facing the parts with toothed surface, can prevent them from falling during the transmission process and the toothed surface from breaking, thus ensuring the processing quality of the products. At the same time, the floating powder on the flat side of the parts can be shaken off during the flipping of the pressed parts by the parts grabbing and flipping mechanism, without generating dead angles that affect the product quality.

[0022] A hollow first slide plate is provided, and floating powder that can fall off during the suspension and flipping of the parts is prevented from accumulating by the hollow first slide plate;

[0023] The brush group and the air pressure rotary cleaning device are combined, and the floating powder is blown and brushed to cover more comprehensively, and the floating powder is cleaned quickly and thoroughly. Moreover, by adjusting the transmission speed of the conveying table, the blowing time of the parts can be adjusted to adapt to the cleaning of different parts, thereby improving the versatility of the present invention;

[0024] A negative pressure dust removal mechanism is provided to attract scattered floating powder and concentrate it into a floating powder cleaning box to avoid the floating powder from running around and causing potential safety hazards and affecting product quality production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the parts centralizing turntable in the present invention.

[0027] Figure 3 It is a structural schematic diagram of the parts grabbing and flipping mechanism in the present invention.

[0028] Figure 4 It is a structural schematic diagram of the gripper device in the present invention.

[0029] Figure 5 It is a schematic diagram of the external structure of the floating powder blowing box in the present invention.

[0030] Figure 6 It is a schematic diagram of the internal cross-sectional structure of the floating powder blowing box in the present invention.

[0031] Description of reference numerals: pressing and forming mechanism 1; conveying workbench 2; mounting support frame 3; floating powder blowing and brushing box 4; parts centralizing turntable 5; parts grabbing and turning mechanism 6; gripping device 7; gripping device 7; turning device 8; sliding and lifting device 9;

[0032] First slide plate 21; mounting frame 22; conveying belt 23; driving roller 24; floating powder centralized cleaning box 25;

[0033] Mounting frame 11; pressing support base column 12; liftable workbench 13; forming die hole 14; lifting drive hydraulic cylinder group 15; forming press 16;

[0034] Mounting housing 71; clamping plate 72; control cylinder 73;

[0035] Rotating cylinder 81; Support rod 82;

[0036] Sliding guide plate 91; sliding seat 92; lifting cylinder 93; supporting plate 94; driving cylinder 95;

[0037] Box structure 41; front cleaning brush set 42; rear cleaning brush set 43; air pressure rotary cleaning device 44; air pressure turntable 45; negative pressure dust removal box 46; negative pressure generator 47;

[0038] The second slide plate 51 ; the supporting foot frame 52 ; the rotating motor 53 ; the protective baffle 54 ; the turntable 55 ; the feed inlet platform 56 ; the discharge outlet platform 57 ; and the arc-shaped concentrating plate 58 . DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0040] Implementation examples:

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown: a powder metallurgy part surface floating powder blowing and brushing device is provided with a pressing and molding mechanism 1, a conveying workbench 2, a floating powder blowing and brushing box body 4 and a part concentration turntable 5. The pressing and molding mechanism 1, the conveying workbench 2 and the part concentration turntable 5 are arranged in sequence. A first slide plate 21 is movably connected to the end of the workbench of the pressing and molding mechanism 1, which can be hinged. The other end of the first slide plate 21 is arranged on the conveying workbench 2, and can be placed on the conveying workbench 2 or movably connected to the conveying workbench 2. The above-mentioned floating powder blowing and brushing box body 4 is arranged on the conveying workbench 2, and a second slide plate 51 is arranged on the part concentration turntable 5. The two ends of the second slide plate 51 are respectively connected to the conveying workbench 2 and the part concentration turntable 5. A part grabbing and flipping mechanism 6 is also installed on the side of the conveying workbench 2. The part grabbing and flipping mechanism 6 is used to grab and take out the parts on the pressing and molding mechanism 1.

[0042] The above-mentioned pressing and forming mechanism 1 is provided with a mounting frame 11, a forming press 16 is arranged on the top of the mounting frame 11, a pressing support base column 12 is arranged in the middle of the mounting frame 11, the output end of the forming press 16 is arranged opposite to the top of the support base column 12, a liftable workbench 13 is arranged on the top of the support base column 12, a forming mold hole 14 is arranged in the middle of the liftable workbench 13, the support base column 12 cooperates with the forming mold hole 14, a lifting drive hydraulic cylinder group 15 is arranged at the bottom of the mounting frame 11, and the output end of the lifting drive hydraulic cylinder group 15 is connected to the bottom of the liftable workbench 13.

[0043] The above-mentioned part grabbing and flipping mechanism 6 is composed of a sliding lifting device 9, a flipping device 8 and a gripping device 7. The gripping device 7 is used to grasp the parts on the pressing and forming mechanism 1. The gripping device 7 is installed at the output end of the flipping device 8. The flipping device 8 is installed at the output end of the sliding lifting device 9. The sliding lifting device 9 is installed on the liftable workbench 13.

[0044] A mounting support frame 3 is provided on the liftable workbench 13 , and the sliding lifting device 9 is mounted on the liftable workbench 13 through the mounting support frame 3 .

[0045] The sliding lifting device 9 is composed of a sliding device and a lifting device. The sliding device is provided with a sliding guide plate 91, on which a sliding seat 92 is slidably provided. The lifting device is provided on the sliding seat 92. A driving cylinder 95 is provided at the end of the sliding guide plate 91, and the driving cylinder 95 is fixedly provided at the end of the sliding guide plate 91.

[0046] The lifting device is provided with a lifting cylinder 93, which is mounted on a sliding seat 92, and the output end of the lifting cylinder 93 is connected to a support plate 94, and the turning device 8 is arranged at the end of the support plate 94;

[0047] The flipping device 8 is provided with a rotating cylinder 81 , which is installed at the end of the supporting plate 94 . The output end of the rotating cylinder 81 is connected to a supporting rod 82 , and the gripping device 7 is installed at the end of the supporting rod 82 .

[0048] During the process of part pressing and forming, some irregular tooth surfaces are generally at the lower end or side, that is, facing the plane of the forming and demoulding platform, which is not suitable for direct pushing and pulling. After the gripper device 7 grasps the part on the liftable workbench 13, the part grabbing and flipping mechanism 6 can move the part horizontally after the part is slightly lifted upward by the sliding lifting device 9. In this way, the moving process is suspended in the air to avoid touching the bumps that accidentally appear on the platform, and also to avoid friction between the tooth surface and the platform, causing friction damage and affecting product quality. While the sliding lifting device 9 moves the part horizontally, a flipping device 8 is provided to flip the part to avoid the tooth surface of the part The first slide plate 21 is designed to be hollow, so that some of the floating powder that is easy to fall off can fall off when the parts are suspended and flipped, and the floating powder can be prevented from accumulating through the hollowing; after the gripper device grabs the parts and leaves the liftable workbench 13, the liftable workbench 13 can carry out the next molding and demolding work. During this process, the liftable workbench 13 rises again, and the slope of the first slide plate 21 becomes steeper. After the parts grabbed by the gripper device are placed on the first slide plate 21 at this time, they are easier to slide to the conveying workbench 2, and the whole process forms a beneficial linkage, and the production efficiency is higher.

[0049] The above-mentioned gripping device 7 is provided with a mounting shell 71, which is arranged at the end of the support rod 65. Two clamps 72 are installed in the mounting shell 71. The front parts of the two clamps 72 form a clamp shape, one of the clamps 72 is movably arranged in the mounting shell 71, and the rear part of the other clamp 72 is provided with a control cylinder 73, and the output end of the control cylinder 73 is fixedly connected to the movably arranged clamp 72.

[0050] During the process of part press forming, the pressing surface of the forming press 16 is generally a flat surface, and some irregular tooth surfaces are generally located at the lower end or the side. The parts with a toothed structure at the lower end surface can be flipped through the parts grabbing and flipping mechanism 6 to avoid the surface teeth from breaking or colliding into deformities during the transportation process, thereby ensuring the product processing quality. At the same time, the parts grabbing and flipping mechanism can shake off the floating powder on the flat side of the parts during the flipping of the pressed parts, and no dead angle will be generated to affect the product quality.

[0051] The above-mentioned conveying workbench 2 is provided with a mounting frame 22, a conveying belt 23 is provided on the top of the mounting frame 22, driving rollers 24 are provided at both ends of the conveying belt 23, and the driving rollers 24 are connected to a driving motor, which can adjust the rotation speed, or a speed and torque adjustment mechanism is provided between the driving roller 24 and the driving motor.

[0052] A floating powder centralized cleaning box 25 is also provided at the bottom of the mounting frame 22 , and the opening of the floating powder centralized cleaning box 25 is located at the conveying end of the floating powder blowing box 4 and the conveying belt 23 .

[0053] The above-mentioned floating powder blowing and brushing box 4 is provided with a box structure 41, and an inlet and an outlet are opened at both ends of the box structure 41. A front cleaning brush group 42 and a rear cleaning brush group 43 are respectively arranged at both ends of the box structure 41. The front cleaning brush group 42 and the rear cleaning brush group 43 are respectively arranged close to the inlet and the outlet. The front cleaning brush group 42 and the rear cleaning brush group 43 can clean various dead corners and floating powder with strong adhesion on the tooth surface as much as possible. An air pressure rotating cleaning device 44 is also arranged in the middle of the box structure 41.

[0054] By combining the brush group and the air pressure rotary cleaning device 44, the floating powder can be blown and brushed more comprehensively, and the floating powder can be cleaned quickly and thoroughly. In addition, by adjusting the transmission speed of the conveying workbench, the blowing time of the parts can be adjusted to adapt to the cleaning of different parts, thereby improving the versatility of the present invention.

[0055] The above-mentioned pneumatic rotary cleaning device 44 is provided with a pneumatic box, and a pneumatic turntable 45 is rotatably connected at the bottom of the pneumatic box. Rotary blowing nozzles are evenly arranged on the pneumatic turntable 45. All the rotary blowing nozzles are used to perform rotary blowing on the parts. When entering a certain position of the floating powder blowing box 4, the blowing nozzle starts to rotate and blow. The advantage of rotary blowing is that the airflow can be relatively small, which can blow off the floating powder on the surface of the parts without blowing the floating powder too far to form pollution. When the parts enter the middle position of the floating powder blowing box 4, that is, when the rotary blowing nozzle is facing the position, the rotary blowing nozzle is connected to the air source and starts to blow and clean. When the parts are far away from this position, the air source is turned off, and the ventilation time can be adjusted according to the effect. In this way, compressed air can be used more effectively, unnecessary waste of compressed air is reduced, so as to achieve the purpose of saving energy, and the service life of the rotary blowing nozzle is also increased. The above can be achieved through the control of an electrical control system, and can also be achieved by providing an elastic air bag in the air circuit connected to the air pressure dial 45 for use in conjunction with an automatic pressure relief valve, and controlling the ventilation time by adjusting the threshold of the automatic pressure relief valve.

[0056] Negative pressure dust removal boxes 46 are also provided on both sides of the box structure 41. The bottom of the negative pressure dust removal box 46 is hollow, that is, a dust suction inlet is provided on the side of the negative pressure dust removal box 46, and a dust removal outlet is provided at the bottom, and it is arranged opposite to the floating powder centralized cleaning box 25. A negative pressure generator 47 is provided in the negative pressure dust removal box 46 to form a negative pressure in the negative pressure dust removal box 46, so that the floating powder in the floating powder blowing box 4 is attracted into the negative pressure dust removal box 46, and falls into the floating powder centralized cleaning box 25, and will not float out of the floating powder blowing box 4 at will.

[0057] The above-mentioned negative pressure generator 47 is installed on the top of the negative pressure dust removal box 46, and can also be installed in other places. It is installed on the top to prevent floating powder from being adsorbed on the negative pressure generator 47 in large quantities, causing negative pressure failure. The specific structure of the negative pressure generator 47 is composed of a negative pressure motor group and a rotating fan blade group. The rotating fan blade group is installed at the output end of the negative pressure motor group. A detachable dust filter is also provided on the top of the negative pressure dust removal box.

[0058] The above-mentioned parts concentrating turntable 5 is provided with a supporting leg 52 and a rotating motor 53. A circle of protective baffles 54 are provided on the top of the supporting leg 52. A turntable 55 is installed at the output end of the rotating motor 53. The protective baffles 54 are arranged around the turntable 55. A feed port platform 56 and a discharge port platform 57 are also provided on the supporting leg 52. The feed port platform 56 is arranged opposite to the discharge port platform 57. An arc-shaped concentrating plate 58 is provided on the protective baffle 54. The arc-shaped concentrating plate 58 is arranged close to the feed port platform 56, and the turntable 55 rotates from the feed port platform 56, the discharge port platform 57 and the arc-shaped concentrating plate 58 in turn.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims.

Claims

1. A powder metallurgy parts surface floating powder blowing device, characterized in that: The invention comprises a pressing and forming mechanism (1), a conveying workbench (2), a floating powder blowing and brushing box (4) and a parts collection turntable (5), wherein the pressing and forming mechanism (1), the conveying workbench (2) and the parts collection turntable (5) are arranged in sequence, a first slide plate (21) is movably connected to the end of the workbench of the pressing and forming mechanism (1), the other end of the first slide plate (21) is arranged on the conveying workbench (2), the floating powder blowing and brushing box (4) is arranged on the conveying workbench (2), a second slide plate (51) is arranged on the parts collection turntable (5), the two ends of the second slide plate (51) are respectively connected to the conveying workbench (2) and the parts collection turntable (5), and a parts grabbing and flipping mechanism (6) is also installed on the workbench of the pressing and forming mechanism (1), the parts grabbing and flipping mechanism (6) is used to grab and take out the parts on the pressing and forming mechanism (1); The pressing and forming mechanism (1) is provided with a mounting frame (11), a forming press (16) is provided on the top of the mounting frame (11), a pressing support base column (12) is provided in the middle of the mounting frame (11), an output end of the forming press (16) is arranged opposite to the top of the support base column (12), a liftable workbench (13) is provided on the top of the support base column (12), a forming die hole (14) is provided in the middle of the liftable workbench (13), the support base column (12) cooperates with the forming die hole (14), a lifting drive hydraulic cylinder group (15) is provided at the bottom of the mounting frame (11), and the output end of the lifting drive hydraulic cylinder group (15) is connected to the bottom of the liftable workbench (13); The part grabbing and flipping mechanism (6) is composed of a sliding lifting device (9), a flipping device (8) and a gripping device (7), wherein the gripping device (7) is used to grip the parts on the pressing and forming mechanism (1), the gripping device (7) is installed at the output end of the flipping device (8), the flipping device (8) is installed at the output end of the sliding lifting device (9), and the sliding lifting device (9) is installed on a liftable workbench (13); A mounting support frame (3) is provided on the liftable workbench (13), and the sliding lifting device (9) is mounted on the liftable workbench (13) via the mounting support frame (3); The sliding lifting device (9) comprises a sliding device and a lifting device, the sliding device is provided with a sliding guide plate (91), a sliding seat (92) is slidably provided on the sliding guide plate (91), the lifting device is provided on the sliding seat (92), a driving cylinder (95) is provided at the end of the sliding guide plate (91), and the driving cylinder (95) is fixedly provided at the end of the sliding guide plate (91); The lifting device is provided with a lifting cylinder (93), the lifting cylinder (93) is installed on the sliding seat (92), the output end of the lifting cylinder (93) is connected to a support plate (94), and the turning device (8) is arranged at the end of the support plate (94); The turning device (8) is provided with a rotating cylinder (81), the rotating cylinder (81) is mounted on the end of the support plate (94), the output end of the rotating cylinder (81) is connected to a support rod (82), and the gripping device (7) is mounted on the end of the support rod (82).

2. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 1 is characterized in that: The gripper device (7) is provided with a mounting shell (71), the mounting shell (71) being arranged at the end of the support rod (82), two clamping plates (72) being installed in the mounting shell (71), the front parts of the two clamping plates (72) forming a clamp shape, one of the clamping plates (72) being movably arranged in the mounting shell (71), and a control cylinder (73) being arranged at the rear part of the other clamping plate (72), the output end of the control cylinder (73) being fixedly connected to the movably arranged clamping plate (72).

3. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 1 is characterized in that: The conveying workbench (2) is provided with a mounting frame (22), a conveying belt (23) is provided on the top of the mounting frame (22), driving rollers (24) are provided at both ends of the conveying belt (23), and the driving rollers (24) are connected to a driving motor.

4. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 3 is characterized in that: A floating powder centralized cleaning box (25) is also provided at the bottom of the mounting frame (22), and the opening of the floating powder centralized cleaning box (25) is located at the conveying end of the floating powder blowing box (4) and the conveying belt (23).

5. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 1 is characterized in that: The floating powder blowing and brushing box (4) is provided with a box structure (41), an inlet and an outlet are provided at both ends of the box structure (41), a front cleaning brush group (42) and a rear cleaning brush group (43) are provided at both ends of the box structure (41), the front cleaning brush group (42) and the rear cleaning brush group (43) are respectively provided near the inlet and the outlet, and a pneumatic rotary cleaning device (44) is also provided in the middle of the box structure (41).

6. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 5, characterized in that: The pneumatic rotary cleaning device (44) is provided with a pneumatic box, a pneumatic turntable (45) is rotatably connected to the bottom of the pneumatic box, and rotary air blowing nozzles are evenly arranged around the pneumatic turntable (45), and all the rotary air blowing nozzles are used to perform rotary air blowing on the parts; Negative pressure dust removal boxes (46) are also provided on both sides of the box structure (41); the bottom of the negative pressure dust removal box (46) is hollowed out and is arranged opposite to the floating powder centralized cleaning box (25); a negative pressure generator is arranged in the negative pressure dust removal box (46).

7. The device for blowing and brushing powder on the surface of powder metallurgy parts according to claim 1, characterized in that: The parts concentration turntable (5) comprises a supporting frame (52) and a rotating motor (53). A protective baffle (54) is arranged on the top of the supporting frame (52). A turntable (55) is installed at the output end of the rotating motor (53). The protective baffle (54) is arranged around the turntable (55). A feed inlet platform (56) and a discharge outlet platform (57) are also arranged on the supporting frame (52). The feed inlet platform (56) and the discharge outlet platform (57) are arranged opposite to each other. An arc-shaped concentration plate (58) is arranged on the protective baffle (54). The arc-shaped concentration plate (58) is arranged close to the feed inlet platform (56). The turntable (55) rotates from the feed inlet platform (56), the discharge outlet platform (57) and the arc-shaped concentration plate (58) in sequence.

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