A pellet dumping and clamping machine

Abstract

The present invention relates to the technical field of metal part processing equipment, and in particular to a shot material pouring and clamping machine. Its technical solution includes: a frame and two main shafts installed on the frame through bearing seats, and a turnover frame is rotatably connected between the two main shafts; the turnover frame includes discs correspondingly rotatably connected to the two main shafts, two pairs of connecting columns are fixed between the two discs, and a plurality of power rollers arranged at equal intervals are rotatably connected between the two discs. A driving assembly for driving the disc to rotate is also provided on one side of the frame; a lower clamping unit and an upper clamping unit that cooperate with each other are arranged between the two discs. The present invention can realize the pouring of shot material with synchronous bidirectional rotation, provides a clamping device with a small occupied space length, avoids the effect of the metal part breaking away and being thrown out during the clamping and pouring process, and can provide the automatic purging ability after the pouring is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal part processing equipment, and particularly to a shot material dumping and clamping machine. Background Art

[0002] Shot materials are used for shot blasting treatment of metal surfaces in the metal machinery industry. There are iron shot materials, stainless steel shot materials, aluminum shot materials for cost savings, and copper shot materials for refinement. In the shot blasting process, the shapes of metal parts are not fixed and there are different shapes. After shot blasting, there may be residual shot materials on the metal parts. It is necessary to completely dump all the shot materials on the metal parts and then recycle them for reuse. At present, the dumping device used is a rotatable clamping machine. When performing the dumping operation, the required metal part is first placed on the fixture, then the power supply of the motor is turned on to drive the fixture to rotate, and then the shot materials are poured out by rotating a certain number of turns.

[0003] Although the existing dumping equipment has a relatively simple structure, there are some deficiencies: on the metal part clamped by the fixture, since the rotation range can only be in one direction, there will be no inclination at the side position, and the shot materials are not completely dumped, so it needs to be clamped again for dumping; during the dumping process of the workpiece, the existing fixture equipment uses a hydraulic cylinder or a pneumatic cylinder for clamping and fixing. Since the pneumatic cylinder requires a main cylinder and a piston rod, in a relatively fixed-sized space, the length space occupied by the pneumatic cylinder or the hydraulic cylinder is relatively large, and the clamping stroke is short, resulting in low space utilization rate. Summary of the Invention

[0004] The object of the present invention is to solve the problems in the background art and propose a shot material dumping and clamping machine that realizes simultaneous rotation in two axial directions to dump shot materials and increases the clamping stroke.

[0005] The technical solution of the present invention: A shot material dumping and clamping machine includes a frame and two main shafts installed on the frame through bearing seats. A turnover frame is rotatably connected between the two main shafts;

[0006] The turnover frame includes discs rotatably connected to the two main shafts respectively. Two pairs of connecting columns are fixed between the two discs. A plurality of equally spaced power rollers are rotatably connected between the two discs. A driving component for driving the disc to rotate is further provided on one side of the frame;

[0007] Between the two discs, there are mutually cooperating lower clamping units and upper clamping units. The lower clamping unit includes an airbag 1 fixed between the two discs through a table plate. The upper side of the airbag 1 is fixed with a hollow column through a push plate. The upper end of the hollow column is rotatably connected to a lower download plate located above the power roller. The lower clamping unit includes an airbag 2 fixed between the two connecting columns through a rectangular plate. The lower side of the airbag 2 is fixed with a square plate. The lower side of the square plate is rotatably connected to an upper disc. On the connecting column, there is a side rotation component that cooperates with the driving component to realize the rotation of the upper disc. The lower side of the upper disc is fixed with a chuck mechanism.

[0008] Preferably, the driving component includes a toothed ring coaxially fixed to one side disc. A gear 1 is fixed on the main shaft on the same side. A motor is fixed on the frame. The output shaft of the motor is fixed with a gear 2 located between the gear 1 and the toothed ring and meshing with each other through a coupling rod.

[0009] Preferably, a plurality of guide rods 1 penetrate through the upper side of the push plate. A bearing plate is fixed between the two discs. The plurality of guide rods 1 are all fixed to the bearing plate.

[0010] Preferably, a plurality of guide rods are fixed on the upper side of the square plate. The plurality of guide rods all penetrate through the rectangular plate and slide with the rectangular plate. A beam frame is fixed between the two discs. A plurality of tension springs are connected between the beam frame and the square plate.

[0011] Preferably, the side rotation component includes two fixed arc plates fixed on the connecting column. The lower ends of the two fixed arc plates are rotatably connected to a ring disc. The lower side of the ring disc is fixed with a plurality of dial rods arranged in a circle. One end of the main shaft on one side is fixed with a transmission disc. On the edge of one side of the transmission disc, a plurality of convex tooth plates arranged in a circle and cooperating with the dial rods are fixed. The lower side of the ring disc is fixed with a plurality of lower extension columns penetrating through the upper disc.

[0012] Preferably, the chuck mechanism includes a hollow main disc fixed on the lower side of the upper disc. There is a concave groove at the bottom of the hollow main disc. A closed ring fixed to the inner top of the hollow main disc is fixed on the upper side of the concave groove. A plurality of arc plates coaxial with the closed ring are fixed on the inner bottom of the hollow main disc. A U-shaped plate is fixed between adjacent two arc plates. An air supply component is arranged on the U-shaped plate. A counterweight is arranged between the arc plate and the concave groove. A T-shaped column is fixed at the bottom of the concave groove. A clamping disc adapted to the bottom of the concave groove is movably sleeved on the T-shaped column.

[0013] Preferably, the air supply component includes an air cylinder fixed to the outside of the U-shaped plate. A communicating pipe connected to the closed ring is fixed to the air cylinder. A one-way air valve is provided on the communicating pipe. A sliding intake pipe penetrates through one side of the U-shaped plate. One end of the sliding intake pipe is fixed with a rectangular sliding plate slidably arranged inside the U-shaped plate. The other end of the sliding intake pipe is fixedly sleeved with a piston slidably arranged with the air cylinder. One side of the piston is fixed with a contact member. A sealing plate for blocking the sliding intake pipe is fixed to the contact member near the piston side through a spring.

[0014] Preferably, the clamping disc includes a hollow secondary disc movably sleeved on the T-shaped column and located at the bottom of the concave groove. A plurality of through holes I are opened on the upper side of the hollow secondary disc. Convex rings fixed to the hollow secondary disc are provided on each of the plurality of through holes I. A plurality of round holes are evenly opened on the lower side of the hollow secondary disc. Column cylinders fixed to the inner bottom of the hollow secondary disc are provided on the upper side of each round hole. Air ports are opened on the side walls of each column cylinder. A limiting tongue slidably arranged in the column cylinder is provided on the lower side of the air port. The lower end of the limiting tongue is inserted into the round hole.

[0015] Preferably, a plurality of docking holes adapted to the diameter of the convex ring are opened at the bottom of the concave groove. The upper end of the convex ring is processed with a rounded corner.

[0016] Preferably, an outer ring plate is fixed to the outer circumferential side of the hollow main disc. A filter ring is installed at the bottom of the outer ring plate. A plurality of intake holes located inside the outer ring plate are opened on the outer circumferential side of the hollow main disc.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] By setting the side-rotation component, the driving effect of the motor is distributed to the rotation of the disc and the transmission disc at the same time. The convex tooth plate on the transmission disc is used to drive the convex tooth plate to make a circular motion. The clamping disc mechanism can be driven to rotate by cooperating with the dial on the upper ring disc. When the disc rotates synchronously, the clamping disc mechanism can be driven to rotate, and the metal parts fixed between the upper clamping unit and the lower clamping unit can be rotated bidirectionally, which is convenient for pouring shot materials for metal parts of different shapes and can improve the pouring efficiency.

[0019] In the chuck mechanism, the closed cavity of the closed ring and the hollow main disc is matched with the side-rotating assembly. The rotation of the hollow main disc causes the counterweight to slide in the arc plate and the U-shaped plate. Under the conditions of the rotation of the hollow main disc and the disc, the counterweight is movably arranged, the arc plate is arc-shaped, and a rectangular slide is provided in the U-shaped plate for support. When the counterweight rolls onto the rectangular slide, the rectangular slide is pressed down by the gravity of the counterweight, and the cavity formed by the gas cylinder and the piston is pressed down by the gravity downward pressure effect, and the pressed gas enters the cavity formed by the closed ring and the hollow main disc, and due to the air The central main disc is in continuous rotation, and the circular disc tilts the hollow main disc as it rotates. The counterweight will roll during the continuous rotation of the hollow main disc after pressing down the rectangular slide at the bottom. Since the rectangular slide is flat, the drop angle formed between the rectangular slide and the end of the arc plate will carry the counterweight for a certain period of time. When the center of gravity of the counterweight falls on one side of the arc plate, the counterweight will fall and put pressure on the rectangular slide that rotates to the lower side again. After such repeated pressure, the cavity inside the closed ring is inflated multiple times, which can provide the effect of continuous air supply in the closed ring after clamping the metal parts.

[0020] After clamping the metal part, combined with the effect of continuous pressure supply, the hollow secondary disc set on the lower side of the concave groove can be inflated. When the hollow secondary disc is pressurized, air enters the air port and squeezes the restricting tongue to extend. The extended restricting tongue is separated from the metal part, which can prevent the metal part from being centrifugally thrown out during rotation due to loosening of the clamping force, thereby greatly improving safety.

[0021] Since the added air supply component needs to introduce external air, and the hollow main disk is located on the upper side of the metal part, there will be residual debris in the shot blasting process, which will be raised along with the dumping and tiny particles. The rotation of the hollow main disk is accompanied by air supply and suction, so that the raised tiny particles can be adsorbed by the negative pressure effect of suction and adsorbed through the filter ring; and the hollow secondary disk cooperates with the bottom of the concave groove, and the column provided therein and the docking hole at the bottom of the concave groove are separated by the weight of the hollow secondary disk itself and the air pressure after the clamping state is released, so that the internal air pressure can be discharged through the hollow secondary disk and the side wall of the concave groove, which can provide a blowing and cleaning effect for the metal parts after the dumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of an embodiment of the present invention is provided;

[0023] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] Figure 3 for Figure 1Side view sectional three-dimensional view;

[0025] Figure 4 is Figure 1 Front view of ;

[0026] Figure 5 is Figure 1 Structural schematic diagram of the upper clamping unit of ;

[0027] Figure 6 is Figure 5 Top view sectional three-dimensional view of ;

[0028] Figure 7 is Figure 6 Structural sectional view of the middle clamping disc in ;

[0029] Figure 8 is Figure 7 Enlarged structural schematic diagram at position B of ;

[0030] Figure 9 is Figure 7 Overall structural schematic diagram of the hollow secondary disc in ;

[0031] Figure 10 is Figure 9 Sectional three-dimensional view of ;

[0032] Figure 11 is Figure 7 Bottom view three-dimensional view of .

[0033] Reference numerals:

[0034] 1. Frame; 11. Spindle;

[0035] 2. Disc; 21. Connecting column; 22. Tooth ring; 23. Gear 1; 24. Motor; 25. Coupling rod; 26. Gear 2;

[0036] 3. Table disc; 31. Airbag 1; 32. Push plate; 33. Hollow column; 34. Download plate;

[0037] 4. Rectangular disc; 41. Airbag 2; 42. Square plate; 43. Upper disc; 44. Guide rod; 45. Beam frame; 46. Tension spring;

[0038] 5. Fixed arc plate; 51. Ring disc; 52. Poking rod; 53. Transmission disc; 54. Convex tooth plate; 55. Lower extension column;

[0039] 6. Hollow main disc; 61. Concave table groove; 62. Sealing ring;

[0040] 63. Arc plate; 631. U-shaped plate; 632. Air cylinder; 633. Connecting pipe; 634. One-way air valve; 635. Sliding air inlet pipe; 636. Rectangular sliding plate; 637. Piston; 638. Contact part; 639. Spring; 6310. Sealing disc;

[0041] 64. Counterweight; 65. T-shaped column;

[0042] 66. Hollow secondary disc; 661. Convex ring; 662. Cylindrical barrel; 663. Air port; 664. Restricting tongue;

[0043] 7. Outer ring plate; 71. Filter ring. Specific implementation mode

[0044] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] Embodiment 1

[0046] Refer to Figure 1 As shown, a pellet dumping clamping machine proposed by the present invention includes a frame 1 and two main shafts 11 installed on the frame 1 through bearing seats. A turnover frame is rotatably connected between the two main shafts 11;

[0047] Refer to Figure 1 and Figure 2 As shown, the turnover frame includes discs 2 rotatably connected to the two main shafts 11 respectively. Two pairs of connecting columns 21 are fixed between the two discs 2. A plurality of power rollers are rotatably connected between the two discs 2 at equal intervals. A driving component for driving the disc 2 to rotate is further provided on one side of the frame 1;

[0048] Refer to Figure 2 As shown, the driving component includes a toothed ring 22 coaxially fixed to one side disc 2. A first gear 23 is fixed on the main shaft 11 on the same side. A motor 24 is fixed on the frame 1. The motor 24 is electrically connected to an external controller and an external power supply. The output shaft of the motor 24 is fixed with a second gear 26 meshing and driving between the first gear 23 and the toothed ring 22. When the second gear 26 rotates, the rotation direction of the toothed ring 22 is opposite to that of the first gear 23.

[0049] Refer to Figure 1 and Figure 3As shown, a lower clamping unit and an upper clamping unit that cooperate with each other are arranged between two discs 2. The lower clamping unit includes an airbag 31 fixed between the two discs 2 through a table disc 3. The air intake port of the airbag 31 is connected to an external air supply device and relies on the external device to control the air supply pressure. The telescopic setting of the airbag 31 has the effect of saving the occupied space length compared with the traditional cylinder telescopic. A hollow column 33 is fixed to the upper side of the airbag 31 through a push plate 32. The upper end of the hollow column 33 is rotatably connected to a download plate 34 located above the power roller; the upper end of the hollow column 33 is rotatably connected to a rotating rod inserted into the hollow column 33 through a bearing, and the upper end of the rotating rod is fixed to the download plate 34; the download plate 34 includes multiple cross bars arranged between the power rollers, and the ends of the multiple cross bars are fixed through side bars. The diagonal length of the download plate 34 is less than the distance between the two discs 2. A plurality of guide rods 1 are arranged through the upper side of the push plate 32. A bearing plate is fixed between the two discs 2, and the plurality of guide rods 1 are all fixed to the bearing plate. In this embodiment, the number of the guide rods 1 is four.

[0050] Reference Figure 1 and Figure 3 and Figure 4 As shown, the lower clamping unit includes an airbag 41 fixed between two connecting columns 21 through a rectangular disc 4. The air intake port of the airbag 41 is connected to an external air supply device and relies on the external device to control the air supply pressure. The telescopic setting of the airbag 41 has the effect of saving the occupied space length compared with the traditional cylinder telescopic. A square plate 42 is fixed to the lower side of the airbag 41, and a plurality of guide rods 44 are fixed to the upper side of the square plate 42. The plurality of guide rods 44 all penetrate through the rectangular disc 4 and slide with the rectangular disc 4. In this embodiment, the number of the guide rods 44 is four. A beam frame 45 is fixed between the two discs 2, and a plurality of tension springs 46 are connected between the beam frame 45 and the square plate 42; in order to achieve a uniform balance effect, in this embodiment, the number of the tension springs 46 is four and they are symmetrically arranged in pairs. The lower side of the square plate 42 is rotatably connected to an upper disc 43, and a side rotation component for realizing the rotation of the upper disc 43 by cooperating with a driving component is arranged on the connecting column 21. The side rotation component includes two fixed arc plates 5 fixed on the connecting column 21. The lower ends of the two fixed arc plates 5 are rotatably connected to an annular disc 51. A plurality of dial rods 52 arranged in a circular shape are fixed to the lower side of the annular disc 51. One end of the main shaft 11 on one side is fixed to a transmission disc 53. A plurality of convex tooth plates 54 arranged in a circular shape and cooperating with the dial rods 52 are fixed to the edge of one side of the transmission disc 53. A plurality of downward extension columns 55 penetrating through the upper disc 43 are fixed to the lower side of the annular disc 51. The upper disc 43 is movably sleeved on the plurality of downward extension columns 55, which can provide the up and down sliding ability of the upper disc 43 and at the same time have the effect of driving the rotation through the annular disc 51.

[0051] In this embodiment, when performing the pouring shot operation of the metal piece, the metal piece to be poured in advance is first moved to the upper side of the download plate 34 by the power roller, the airbag 1 31 and the airbag 2 41 are started synchronously, and the air pressure is controlled by an external device. After the air is supplied, the airbag 1 31 and the airbag 2 41 are extended, and the push plate 32 in the lower clamping unit moves upward, causing the push plate 32 to slide with the guide rod 1, and the hollow column 33 to slide with the load plate, and at the same time drive the download plate 34 to move upward; at the same time, the download plate 34 will lift the metal piece placed on the dynamic roller. The metal parts on the force roller; and synchronously, the square plate 42 at the lower end of the airbag 2 41 moves downward. Since a tension spring 46 is provided to pull the square plate 42, the tension spring 46 will be stretched during the downward movement of the square plate 42. At the same time, the upper plate 43 connected to the lower side of the square plate 42 by the bearing rotation mode moves downward. Since a lower extension column 55 is provided to slide with the upper plate 43, the upper plate 43 and the lower extension column 55 slide during the downward movement of the upper plate 43; when tightening, the distance between the upper plate 43 and the download plate 34 becomes smaller, thereby achieving the fixation of the metal parts.

[0052] When the dumping starts, the motor 24 is powered on and started. The output shaft of the motor 24 drives the gear 2 26 to rotate through the connecting rod 25, and then the gear 1 23 is meshed with the gear ring 22 and the gear 2 26, and the transmission is in the form of a rotation direction opposite to that of the gear ring 22. Since the disc 2 is connected and fixed by the connecting column 21, the gear ring 22 fixed on the disc 2 rotates, and the upper clamping unit and the lower clamping unit set between the two discs 2 are driven to rotate, and the metal parts fixed therebetween will also rotate accordingly. Since the transmission disc 53 is fixed to the end of the main shaft 11, the transmission disc 5 is driven by the rotation of the main shaft 11. 3 rotation, the multiple convex tooth plates 54 fixed on the transmission plate 53 cooperate with the shifting rod 52 on the ring plate 51 to realize the form of mutual meshing transmission, thereby driving the ring plate 51 connected to the fixed arc plate 5 to rotate. Since the upper plate 43 and the square plate 42 are rotatable, when the ring plate 51 rotates, the upper plate 43 will rely on the action of the lower extension column 55 to realize rotation; because in the clamped state, the rotation of the upper plate 43 will drive the metal parts on the download plate 34 to rotate, thus achieving the effect of horizontal rotation while realizing vertical rotation, which can greatly improve the efficiency of pouring the shot material and achieve the purpose of saving operation steps.

[0053] Example 2

[0054] refer to Figures 5 - 8As shown, a pellet dumping clamping machine proposed by the present invention, based on Embodiment 1, this embodiment further includes: a chuck mechanism is fixed to the lower side of the upper disk 43. The chuck mechanism includes a hollow main disk 6 fixed to the lower side of the upper disk 43. A concave groove 61 is provided at the bottom of the hollow main disk 6. A closed ring 62 fixed to the inner top of the hollow main disk 6 is fixed above the concave groove 61. The closed ring 62 and the hollow main disk 6, the concave groove 61 form a closed cavity. A plurality of arc plates 63 coaxial with the closed ring 62 are fixed to the inner bottom of the hollow main disk 6. A U-shaped plate 631 is fixed between two adjacent arc plates 63. An air supply component is provided on the U-shaped plate 631; the air supply component includes an air cylinder 632 fixed to the outside of the U-shaped plate 631. A communication pipe 633 connected to the closed ring 62 is fixed to the air cylinder 632. A one-way air valve 634 is provided on the communication pipe 633. A sliding intake pipe 635 is disposed through one side of the U-shaped plate 631. One end of the sliding intake pipe 635 is fixed with a rectangular sliding plate 636 slidably disposed inside the U-shaped plate 631. The other end of the sliding intake pipe 635 is fixedly sleeved with a piston 637 slidably disposed in the air cylinder 632. A contact member 638 is fixed to one side of the piston 637. A sealing plate 6310 for blocking the sliding intake pipe 635 is fixed to the side of the contact member 638 close to the piston 637 through a spring 639.

[0055] Reference Figure 6 and Figures 9 - 11 As shown, a counterweight 64 is provided between the arc plate 63 and the concave groove 61. A T-shaped column 65 is fixed to the bottom of the concave groove 61. A clamping disk adapted to the bottom of the concave groove 61 is movably sleeved on the T-shaped column 65. The clamping disk includes a hollow secondary disk 66 movably sleeved on the T-shaped column 65 and located at the bottom of the concave groove 61. A plurality of through holes 1 are provided on the upper side of the hollow secondary disk 66. A convex ring 661 fixed to the hollow secondary disk 66 is provided on each of the plurality of through holes 1. A plurality of docking holes adapted to the diameter of the convex ring 661 are provided at the bottom of the concave groove 61. The upper end of the convex ring 661 is processed with a rounded corner, and the rounded corner design can facilitate docking. A plurality of circular holes are evenly provided on the lower side of the hollow secondary disk 66. A plurality of column cylinders 662 fixed to the inner bottom of the hollow secondary disk 66 are provided above the circular holes. An air port 663 is provided on the side wall of each column cylinder 662. A limiting tongue 664 slidably disposed in the column cylinder 662 is provided below the air port 663. The limiting tongue 664 is in the shape of a T-shaped nail, and the upper end is piston-type and slides in the column cylinder 662. The lower end of the limiting tongue 664 is inserted into the circular hole. The thickness of the hollow secondary disk 66 is adapted to the depth of the bottom groove of the concave groove 61. Further, when the hollow secondary disk 66 is located in the concave groove 61, the lower side of the hollow secondary disk 66 is flush with the bottom of the hollow main disk 6. And when the limiting tongue 664 completely penetrates into the inner top of the column cylinder 662, the lower end of the limiting tongue 664 is flush with the lower side of the hollow secondary disk 66, and at the same time, the top of the column cylinder 662 contacts the inner top of the hollow secondary disk 66 to improve the overall compressive strength.

[0056] ReferenceFigures 6 - 9 As shown, an outer ring plate 7 is fixed to the outer circumferential side of the hollow main plate 6. A filter ring 71 is installed at the bottom of the outer ring plate 7. A plurality of air intake holes located inside the outer ring plate 7 are formed on the outer circumferential side of the hollow main plate 6.

[0057] In this embodiment, after the second airbag 41 is activated, the chuck mechanism fixed to the lower side of the upper plate 43 will also rotate accordingly. The hollow secondary plate 66 below the hollow main plate 6 in the chuck mechanism will contact the metal part, and the metal part will be clamped and fixed through the combination of the hollow secondary plate 66, the hollow main plate 6 and the download plate 34. After the hollow secondary plate 66 contacts the metal part, since the hollow secondary plate 66 and the T-shaped column 65 are slidably arranged, the T-shaped column 65 will slide relative to the hollow secondary plate 66. After extrusion, the convex ring 661 is inserted into the docking hole on the concave groove 61, so that the hollow secondary plate 66 forms a communicating structure with the cavity above the concave groove 61.

[0058] When the disc 2 rotates, the hollow main plate 6 will be in an inclined state and will also rotate accordingly. During this process, due to the rotation of the hollow main plate 6, the counterweight 64 slides within the arc plate 63 and the U-shaped plate 631. Since the counterweight 64 is movably arranged and cylindrical, and the arc plate 63 is arc-shaped, and a rectangular slide plate 636 is provided in the U-shaped plate 631 for support, when the counterweight 64 rolls onto the rectangular slide plate 636, the rectangular slide plate 636 will be pressed down by the gravity of the counterweight 64. The rectangular slide plate 636 pushes the piston 637 to slide through the sliding air inlet pipe 635, thereby pressing down the cavity formed by the air cylinder 632 and the piston 637. Then, the pressed gas enters the cavity formed by the closed ring 62 and the hollow main plate 6 through the connecting pipe 633 and the one-way air valve 634. Due to the continuous rotation of the hollow main plate 6, and the disc 2 rotates while making the hollow main plate 6 inclined, the counterweight 64 will roll during the continuous rotation of the hollow main plate 6 after pressing down the rectangular slide plate 636 at the bottom. Since the rectangular slide plate 636 is flat, the drop angle formed between the end of the rectangular slide plate 636 and the arc plate 63 will hold the counterweight 64 for a certain period of time. When the center of gravity of the counterweight 64 falls on one side of the arc plate 63, the counterweight 64 will fall and press the rectangular slide plate 636 that rotates to the lower side again. After such repeated pressing many times, the inner cavity of the closed ring 62 is inflated.

[0059] After the rectangular slide 636, the sliding air intake pipe 635, the piston 637 and other components are pressed down, they will move upwards. When the rectangular slide 636 is located on the lower side of the sliding air intake pipe 635, the rectangular slide 636, the sliding air intake pipe 635 and other components have their own gravity, which causes negative pressure in the cavities of the air cylinder 632 and the piston 637. Through the gravity of the rectangular slide 636, the sealing disk 6310 is pushed under the action of negative pressure, and the spring 639 is compressed, so that the cavity between the air cylinder 632 and the piston 637 is inflated.

[0060] After the cavity formed by the closed ring 62, the concave groove 61 and the hollow main disk 6 is inflated, the pressure in the connected hollow secondary disk 66 is increased, and then the pressure can enter the cylinder 662 through the air port 663, keeping the limiting tongue 664 extended. It can provide a blocking effect on metal parts during the longitudinal rotation of the disc 2 and the lateral rotation of the hollow main disk 6, thereby improving safety.

[0061] During the continuous air intake process, due to the negative pressure of the cavity formed by the outer side of the closed ring 62 and the hollow main disk 6, air can enter through the set air intake holes, and the outer ring plate 7 and the filter ring 71 are provided, and the dust particles raised by the rotating falling shot can be adsorbed and filtered by the filter ring 71.

[0062] After the pouring of the pellets is completed, the download plate 34 is controlled by an external control device to fall, and the upper hollow main disk 6 is pulled by the tension spring 46, so that the metal parts fall on the power roller between the disks 2. Then, when the hollow secondary disk 66 is about to break away from the contact with the metal parts, it is separated by its own gravity and air pressure, so that the internal air pressure can be discharged through the hollow secondary disk 66 and the side wall of the concave groove 61, which can provide a blowing and cleaning effect for the metal parts after the pouring.

[0063] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A pellet dumping and clamping machine, characterized by: It comprises a frame (1) and two main shafts (11) mounted on the frame (1) via a bearing seat, wherein a turning frame is rotatably connected between the two main shafts (11); The turning frame comprises a disc (2) rotatably connected to two main shafts (11), two pairs of connecting columns (21) are fixed between the two discs (2), a plurality of power rollers arranged at equal intervals are rotatably connected between the two discs (2), and a driving assembly for driving the discs (2) to rotate is also provided on the frame (1) on one side; A lower clamping unit and an upper clamping unit that cooperate with each other are provided between the two discs (2), the lower clamping unit comprising an air bag (31) fixed between the two discs (2) via a table (3), a hollow column (33) being fixed on the upper side of the air bag (31) via a push plate (32), and the upper end of the hollow column (33) being rotatably connected to a download plate (34) located on the upper side of the power roller; The upper clamping unit comprises an airbag 2 (41) fixed between two connecting columns (21) via a rectangular disk (4), a square plate (42) is fixed to the lower side of the airbag 2 (41), an upper disk (43) is rotatably connected to the lower side of the square plate (42), a side rotation assembly is provided on the connecting column (21) for cooperating with a driving assembly to realize the rotation of the upper disk (43), and a clamping mechanism is fixed to the lower side of the upper disk (43); The chuck mechanism comprises a hollow main disc (6) fixed to the lower side of the upper disc (43), a concave platform groove (61) is provided at the bottom of the hollow main disc (6), a closed ring (62) fixed to the top of the hollow main disc (6) is fixed on the upper side of the concave platform groove (61), a plurality of arc plates (63) coaxial with the closed ring (62) are fixed to the inner bottom of the hollow main disc (6), a U-shaped plate (631) is fixed between two adjacent arc plates (63), an air supply assembly is provided on the U-shaped plate (631), a counterweight block (64) is provided between the arc plate (63) and the concave platform groove (61), a T-shaped column (65) is fixed to the bottom of the concave platform groove (61), and a clamping disc adapted to the bottom of the concave platform groove (61) is movably sleeved on the T-shaped column (65); The clamping disk includes a hollow secondary disk (66) movably mounted on the T-shaped column (65) and located at the bottom of the concave platform groove (61), a plurality of through holes are provided on the upper side of the hollow secondary disk (66), and a plurality of through holes are provided on each of the through holes to be fixed to the hollow secondary disk (66), a plurality of circular holes are evenly provided on the lower side of the hollow secondary disk (66), a plurality of cylinders (662) fixed to the bottom of the hollow secondary disk (66) are provided on the upper side of the circular holes, an air port (663) is provided on the side wall of each cylinder (662), a limiting tongue (664) slidably arranged in the cylinder (662) is provided on the lower side of the air port (663), and the lower end of the limiting tongue (664) is inserted into the circular hole; The bottom of the concave platform groove (61) is provided with a plurality of docking holes that are adapted to the diameter of the convex ring (661).

2. A shot dumping and clamping machine according to claim 1, characterized in that: The driving assembly comprises a gear ring (22) fixed coaxially with a disk (2) on one side, a gear 1 (23) fixed on a main shaft (11) on the same side, a motor (24) fixed on the frame (1), and a gear 2 (26) located between the gear 1 (23) and the gear ring (22) and meshing with each other and transmitting the same through a connecting rod (25) fixed to the output shaft of the motor (24).

3. The shot dumping and clamping machine according to claim 1, characterized in that: A plurality of guide rods are provided through the upper side of the push plate (32), a bearing plate is fixed between the two discs (2), and the plurality of guide rods are fixed to the bearing plate.

4. The shot dumping and clamping machine according to claim 1, characterized in that: A plurality of guide rods (44) are fixed on the upper side of the square plate (42), and the plurality of guide rods (44) all penetrate the rectangular disk (4) and slide with the rectangular disk (4). A beam frame (45) is fixed between the two circular disks (2), and a plurality of tension springs (46) are connected between the beam frame (45) and the square plate (42).

5. The shot dumping and clamping machine according to claim 4, characterized in that: The side rotation assembly comprises two fixed arc plates (5) fixed on the connecting column (21), the lower ends of the two fixed arc plates (5) are rotatably connected to a ring disk (51), a plurality of circumferentially arranged shifting rods (52) are fixed on the lower side of the ring disk (51), a transmission disk (53) is fixed to one end of the main shaft (11) on one side, a plurality of convex tooth plates (54) arranged in a circumferential manner and matched with the shifting rods (52) are fixed on the edge of one side of the transmission disk (53), and a plurality of lower extension columns (55) penetrating the upper disk (43) are fixed on the lower side of the ring disk (51).

6. The shot dumping and clamping machine according to claim 5, characterized in that: The air supply assembly includes an air cylinder (632) fixed on the outside of the U-shaped plate (631), a connecting pipe (633) connected to the closed ring (62) is fixed on the air cylinder (632), a one-way air valve (634) is provided on the connecting pipe (633), a sliding air intake pipe (635) is provided through one side of the U-shaped plate (631), one end of the sliding air intake pipe (635) is fixed with a rectangular slide (636) slidably arranged on the inside of the U-shaped plate (631), and the other end of the sliding air intake pipe (635) is fixedly sleeved with a piston (637) slidably arranged with the air cylinder (632), a contact member (638) is fixed on one side of the piston (637), and a sealing disk (6310) for blocking the sliding air intake pipe (635) is fixed to the contact member (638) on the side close to the piston (637) through a spring (639).

7. The shot dumping and clamping machine according to claim 6, characterized in that: The upper end portion of the convex ring (661) is processed with a rounded corner.

8. The shot dumping and clamping machine according to claim 7, characterized in that: An outer ring plate (7) is fixed to the outer circumference of the hollow main disk (6), a filter ring (71) is installed at the bottom of the outer ring plate (7), and a plurality of air inlet holes located on the inner side of the outer ring plate (7) are opened on the outer circumference of the hollow main disk (6).

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