Numerical control machining automatic clamp for aluminum alloy die casting

Abstract

The application discloses a kind of automatic clamps of aluminium alloy die casting numerical control machining, comprising: mounting seat, support plate is fixedly arranged above the mounting seat, guide rail is fixedly arranged in the left and right sides of the support plate symmetrically, adaptive carding portion is arranged in the middle of the support plate, horizontal movement module is arranged between each symmetrically arranged guide rail, longitudinal movement module is arranged on each horizontal movement module, adaptive clamping portion is arranged on each longitudinal movement module, top setting mechanism capable of driving adaptive carding portion to be pressed upward is arranged below the support plate, main conveying portion is arranged on the front and rear sides of the support plate, and vice conveying portion is arranged on each horizontal movement module.Compared with prior art, aluminium alloy die casting can be automatically machined, and different sizes and shapes of workpieces can be machined by adjusting adaptation.

Description

Technical Field

[0001] This invention relates to the field of CNC machining technology for aluminum alloy die castings, and in particular to an automatic fixture for CNC machining of aluminum alloy die castings. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for machining or inspection; it is also called a clamp. In a broader sense, any device used to quickly, conveniently, and safely install a workpiece in any step of the manufacturing process can be called a fixture. Fixtures typically consist of positioning elements, clamping devices, tool setting guide elements, indexing devices, connecting elements, and a fixture body. There are many types of fixtures, including welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often simply referred to as fixtures. When machining workpieces on a machine tool, to ensure that the workpiece surface meets the technical requirements specified in the drawing, such as dimensions, geometry, and positional accuracy relative to other surfaces, the workpiece must be properly mounted and clamped before machining. Besides vises, chucks, indexing heads, and rotary tables, a more common tool holder is used. Generally, when the term "tool fixture" appears together, it usually refers to the tool holder. Fixtures have a wide range of applications; they are also used to fix workpieces in CNC machining of aluminum alloy die-castings.

[0003] Existing CNC machining fixtures for aluminum alloy die castings have simple structures and limited functions, requiring manual loading and unloading, resulting in low efficiency. Furthermore, their fixed and non-adjustable structures make them unsuitable for different types of workpieces, leading to poor applicability. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic fixture for CNC machining of aluminum alloy die-casting parts, which can solve at least one of the above-mentioned technical problems. The technical solution of this invention is as follows: An automatic CNC machining fixture for aluminum alloy die-casting parts includes: a mounting base; a support plate fixedly mounted above the mounting base; guide rails symmetrically fixed on the left and right sides of the support plate; an adapter clamping part located in the middle of the support plate; a transverse moving module located between each of the symmetrically arranged guide rails; a longitudinal moving module located on each of the transverse moving modules; an adapter clamping part located on each of the longitudinal moving modules; a lifting mechanism located below the support plate capable of driving the adapter clamping part to press upward; main conveying parts located on both the front and rear sides of the support plate; and auxiliary conveying parts located on each of the transverse moving modules.

[0005] Furthermore, the adapter mounting part includes a support frame fixed in the middle of the support plate, a first clearance groove is provided below the support frame, a plurality of first insertion slots that can communicate with the first clearance groove are evenly distributed on the support frame, a recessed platform is provided below each of the first insertion slots, a first locking post is movably inserted into each of the first insertion slots, a baffle that can be set in the recessed platform is fixed below each of the first locking posts, and a first spring is connected below each of the baffles.

[0006] Furthermore, the transverse movement module includes a transverse plate movably inserted into every two symmetrically arranged guide rails, a threaded sleeve fixed below each transverse plate, and screws that can be threadedly engaged with the threaded sleeves are movably sleeved on the left and right sides of the support plate. A first motor is fixed on the left and right sides of the support plate, and the output end of the first motor is threadedly engaged with the adjacent screw.

[0007] Furthermore, the longitudinal movement module includes U-shaped frames disposed on each transverse plate, each U-shaped frame having a sliding groove, and a symmetrically fixed insertion shaft below each U-shaped frame capable of passing through an adjacent transverse plate, and a first push cylinder fixed below each transverse plate capable of connecting and fixing with the insertion shaft.

[0008] Furthermore, the adapter clamping part includes a movable frame movably inserted into each of the sliding grooves, a second clearance groove is longitudinally provided in each of the movable frames, a plurality of second insertion grooves that can communicate with the second clearance grooves are evenly distributed through each of the movable frames, a second locking post is movably inserted into each of the second insertion grooves, a second spring is connected and fixed between each of the second locking posts and the second clearance grooves, waist-shaped grooves are symmetrically fixed on both the front and rear sides of each of the movable frames, a rotating plate with a shaft is provided between every two symmetrically arranged waist-shaped grooves, a middle plate is movably hinged between every two adjacent rotating plates, the shaft end of each rotating plate is movably disposed in an adjacent waist-shaped guide groove, and a second push cylinder that can be connected to the movable frame is fixed on one side of the transverse plate.

[0009] Furthermore, the top-mounting mechanism includes a top plate with a first clearance groove at the bottom and located below the first spring. Push grooves are provided on both the front and rear sides of the top plate, and push plates are provided in each push groove. Guide rods that can pass through the support plate are symmetrically provided below each push plate. Connecting plates are fixed between each symmetrically provided guide rod. Swing rods are symmetrically hinged below the connecting plates. Fixed shafts that can be set below the connecting plates are fixed at the ends of each swing rod. Waist groove blocks are fixed at the hinge ends of each swing rod. A third push cylinder is fixed on the right side below the connecting plate. A horizontal plate is fixed at the output end of the third push cylinder. Long shafts that can be set in the waist groove blocks are symmetrically fixed on the horizontal plate. Circular plates are fixed at the ends of each long shaft.

[0010] Preferably, the main conveying section includes fixed seats symmetrically fixed on the front and rear sides of the support plate, and a first conveyor belt is provided between each of the symmetrically arranged fixed seats.

[0011] Preferably, the secondary conveying section includes extension plates that extend and are fixed to the front and rear sides of the transverse plate, and a second conveyor belt is provided on each of the extension plates.

[0012] In summary, the advantages of this invention over the prior art are: This invention provides an automatic CNC machining fixture for aluminum alloy die castings. In use, an external conveying device transports the aluminum alloy die casting to a main conveyor and a secondary conveyor. The die casting moves through these conveyors to an adapter clamping unit, which clamps the irregular lower portion of the die casting. Simultaneously, an adapter clamping unit clamps the left and right sides of the die casting, allowing the CNC machining center to process the part. The adapter clamping unit can be adjusted via a lateral movement module during operation. The spacing between the parts allows the adapter clamping part and the auxiliary conveying part to adapt to aluminum alloy die castings of different sizes. At the same time, the longitudinal moving module can drive the adapter clamping part to move longitudinally, so that the adapter clamping part adapts to the height of the aluminum alloy die casting. After processing, the top setting mechanism drives the adapter clamping part to press upward, so that the aluminum alloy die casting is lifted upward and transported to the external conveying equipment through the main conveying part and the auxiliary conveying part. Compared with the existing technology, it can automatically process aluminum alloy die castings and can adjust to process workpieces of different sizes and shapes. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0014] Figure 2 This is a half-sectional schematic diagram of the present invention.

[0015] Figure 3 This is one of the exploded schematic diagrams of the present invention.

[0016] Figure 4 This is the second exploded view of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Support plate; 3. Guide rail; 4. Adapter locking part; 5. Lateral movement module; 6. Longitudinal movement module; 7. Adapter clamping part; 8. Main conveying part; 9. Auxiliary conveying part; 100. Top setting mechanism; 41. Support frame; 42. First clearance groove; 43. First insertion groove; 44. Sunk; 45. First locking post; 46. Baffle; 47. First spring; 51. Lateral movement plate; 52. Threaded sleeve; 53. Screw; 54. First motor; 61. U-shaped frame; 62. Slide groove; 63. Insert shaft; 64. First push cylinder; 71. 72. Moving frame; 73. Second clearance groove; 74. Second insertion groove; 75. Second locking post; 76. Second spring; 77. Waist-shaped groove; 78. Flipping plate; 79. Middle plate; 80. Second push cylinder; 81. Fixed seat; 82. First conveyor belt; 91. Extension plate; 92. Second conveyor belt; 101. Top plate; 102. Push groove; 103. Push plate; 104. Guide rod; 105. Connecting plate; 106. Swing rod; 107. Fixed shaft; 108. Waist groove block; 109. Third push cylinder; 110. Horizontal plate; 111. Long shaft; 112. Circular plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 4 An automatic fixture for CNC machining of aluminum alloy die-casting parts is shown, characterized in that it includes: a mounting base 1, a support plate 2 fixedly mounted above the mounting base 1, guide rails 3 symmetrically fixed on the left and right sides of the support plate 2, an adapter clamping part 4 provided in the middle of the support plate 2, a transverse moving module 5 provided between each of the symmetrically arranged guide rails 3, a longitudinal moving module 6 provided on each of the transverse moving modules 5, an adapter clamping part 7 provided on each of the longitudinal moving modules 6, a lifting mechanism 100 provided below the support plate 2 that can drive the adapter clamping part 4 to push upward, a main conveying part 8 provided on both the front and rear sides of the support plate 2, and a secondary conveying part 9 provided on each of the transverse moving modules 5.

[0019] The above-described automatic fixture for CNC machining of aluminum alloy die-cast parts uses an external conveying device to transport the die-cast parts to the main conveyor section 8 and the auxiliary conveyor section 9. The die-cast parts are then moved to the adapter clamping section 4 via the main and auxiliary conveyor sections 8 and 9, where the adapter clamping section 4 clamps the irregular parts on the bottom of the die-cast parts. Simultaneously, the adapter clamping section 4 clamps the left and right sides of the die-cast parts, allowing the CNC machining center to machine them. The adapter clamping section can be adjusted via the transverse movement module 5 during operation. The spacing allows the adapter clamping part 5 and the auxiliary conveying part 9 to adapt to aluminum alloy die castings of different sizes. At the same time, the longitudinal moving module 6 can drive the adapter clamping part 7 to move longitudinally, so that the adapter clamping part 7 adapts to the height of the aluminum alloy die casting. After processing, the top setting mechanism 100 drives the adapter clamping part 7 to press upward, so that the aluminum alloy die casting is lifted upward and transported to the external conveying equipment through the main conveying part 8 and the auxiliary conveying part 9. Compared with the prior art, it can automatically process aluminum alloy die castings and can adjust to process workpieces of different sizes and shapes.

[0020] like Figures 2 to 4 As shown, in some embodiments of the present invention, the adapter mounting part 4 includes a support frame 41 fixed in the middle of the support plate 2, a first clearance groove 42 is provided below the support frame 41, a plurality of first insertion grooves 43 that can communicate with the first clearance grooves 42 are evenly distributed on the support frame 41, a recessed platform 44 is provided below each of the first insertion grooves 43, a first locking post 45 is movably inserted into each of the first insertion grooves 43, a baffle 46 that can be disposed in the recessed platform 44 is fixed below each of the first locking posts 45, and a first spring 47 is connected below each of the baffles 46.

[0021] When the aluminum alloy die casting is transported to the support frame 41, the weight of the aluminum alloy die casting drives each of the first locking pins 45 below it to move along the first insertion groove 43 into the first clearance groove 42, while the remaining first locking pins 45 are pushed upward by the first spring 47, so that the remaining first locking pins 45 hold the aluminum alloy die casting in place.

[0022] like Figure 4 As shown, in some embodiments of the present invention, the transverse moving module 5 includes a transverse plate 51 movably inserted into each pair of symmetrically arranged guide rails 3, a threaded sleeve 52 fixed below each transverse plate 51, and screws 53 movably sleeved on the left and right sides of the support plate 2, which can be threadedly engaged with the threaded sleeves 52. A first motor 54 is fixed on the left and right sides of the support plate 2, and the output end of the first motor 54 is threadedly engaged with the adjacent screw 53.

[0023] The first motor 54 drives the screw 53 to rotate, which in turn drives the transverse plate 51 to move along the guide rail 3 through the threaded sleeve 52. This causes the transverse plate 51 to move the adapter clamping part 7, thereby moving each adapter clamping part 7 to a suitable distance.

[0024] like Figure 3 As shown, in some embodiments of the present invention, the longitudinal moving module 6 includes a U-shaped frame 61 disposed on each transverse plate 51, a sliding groove 62 provided on each U-shaped frame 61, an insert shaft 63 symmetrically fixed below each U-shaped frame 61 that can pass through the adjacent transverse plate 51, and a first push cylinder 64 fixed below each transverse plate 51 that can be connected and fixed to the insert shaft 63.

[0025] The first push cylinder 64 drives the insert shaft 63 to push upward, which in turn drives the U-shaped frame 61 to move upward. At this time, the U-shaped frame 61 drives the adapter clamping part 7 to move to a suitable height.

[0026] like Figure 3 As shown, in some embodiments of the present invention, the adapter clamping part 7 includes a movable frame 71 movably inserted into each of the sliding grooves 62. A second clearance groove 72 is longitudinally provided in each of the movable frames 71. A plurality of second insertion grooves 73 that can communicate with the second clearance grooves 72 are evenly distributed through each of the movable frames 71. A second locking post 74 is movably inserted into each of the second insertion grooves 73. A second spring 75 is connected and fixed between each of the second locking posts 74 and the second clearance grooves 72. Waist-shaped grooves 76 are symmetrically fixed on both the front and rear sides of each of the movable frames 71. A rotating plate 77 with a shaft is provided between every two symmetrically arranged waist-shaped grooves 76. A middle plate 78 is movably hinged between every two adjacent rotating plates 77. The shaft end of each rotating plate 77 is movably disposed in the adjacent waist-shaped guide groove 76. A second pushing cylinder 79 that can be connected to the movable frame 71 is fixed on one side of the transverse plate 51.

[0027] First, the second push cylinder 79 drives the moving frame 71 to move laterally along the slide groove 62, thereby moving and clamping the moving frame 71 towards the aluminum alloy die casting. At this time, the hinged flipping plate 77 and the middle plate 78 change their angle according to the shape of the aluminum alloy die casting. When flipping, the shaft ends of each flipping plate 77 will move along the adjacent waist-shaped guide groove 76 to avoid the gap. At the same time, when the middle plate 78 and the flipping plate 77 flip, they will contact the second locking post 74 on them, causing the second locking post 74 to move along the second insertion groove 73 to the second clearance groove 72. When the second push cylinder 79 drives the moving frame 71 to reset, the second spring 75 drives each second locking post 74 to reset, thereby driving each middle plate 78 and the flipping plate 77 to reset.

[0028] like Figure 3 and 4 As shown, in some embodiments of the present invention, the top-mounting mechanism 100 includes a top plate 101 with the bottom of the first clearance groove 42 and located below the first spring 47. Push grooves 102 are provided on both the front and rear sides of the top plate 101. Push plates 103 are provided within each push groove 102. Guide rods 104, capable of passing through the support plate 2, are symmetrically arranged below each push plate 103. Connecting plates 105 are fixedly connected between the symmetrically arranged guide rods 104. Symmetrically hinged below the connecting plates 105... There is a swing arm 106, and a fixed shaft 107 that can be set below the connecting plate 105 is fixed at the end of each swing arm 106. A waist groove block 108 is fixed at the hinge end of each swing arm 106. A third push cylinder 109 is fixed on the right side below the connecting plate 105. A horizontal plate 110 is fixed at the output end of the third push cylinder 109. Long shafts 111 that can be set in the groove of the waist groove block 108 are symmetrically fixed on the horizontal plate 110. A circular plate 112 is fixed at the end of each long shaft 111.

[0029] The third push cylinder 109 pulls the horizontal plate 110, causing the long shafts 111 on the horizontal plate 110 to move. At the same time, the long shafts 111 pull the waist groove block 108 to move through the circular plate 112. The long shafts 111 move in the groove of the waist groove block 108, causing the waist groove block 108 to pull the swing rod 106 to flip upward. When the swing rod 106 flips, it drives the fixed shaft 107 to move, which in turn drives the connecting plate 105 to move upward. When the connecting plate 105 moves, it drives the push plate 103 to move through the guide rod 104. The push plate 103 moves in the push groove 102, which in turn drives the top plate 101 to push the first locking pins 45 upward.

[0030] like Figure 3 As shown, in some embodiments of the present invention, the main conveying unit 8 includes fixed seats 81 symmetrically fixed on the front and rear sides of the support plate 2, and a first conveyor belt 82 is provided between each of the symmetrically arranged fixed seats 81.

[0031] The auxiliary conveying unit 9 includes extension plates 91 that extend and are fixed on the front and rear sides of the transverse plate 51, and a second conveyor belt 92 is provided on each of the extension plates 91.

[0032] When the transverse plate 51 moves, the second conveyor belt 92 is moved to the appropriate position by each extension plate 91. In use, the aluminum alloy die-casting is moved by the first conveyor belt 82 and the second conveyor belt 92.

[0033] When an automatic fixture for CNC machining of aluminum alloy die-casting parts using the above structure is in operation, as the cable tie moves between multiple tightening rollers 201 via the guide 7, the motor 204 fixed on the motor base 203 is first driven by the power supply, causing the output end of the motor 204 to drive the third spur gear 202 to rotate. When the third spur gear 202 rotates, it drives one of the second spur gears 202 to rotate. At the same time, one of the second spur gears 202 drives another second spur gear 202 to rotate. When one of the second spur gears 202 and the other second spur gear 202 rotate, they drive each tightening roller 201 to rotate. The multiple tightening rollers 201 pull the cable tie down between them. When the cable tie tightly binds the insulation to the wire, the pneumatic scissors 206 cut off the protruding tail of the cable tie.

[0034] When an automatic fixture for CNC machining of aluminum alloy die-casting parts using the above structure is in operation, the pressure on the right side of chamber 2 is greater than that on the right side of chamber 3 because the heating device 7 heats and dries the hydrogen. At this time, the hydrogen flows from the conical hole 306 to the semi-circular body 305. Due to the gas pressure, the semi-circular body 305 drives the insertion rod 303 to move to the left, causing the semi-circular body 305 and the conical hole 306 to separate. The gas flows into the left side of chamber 2. When the pressure decreases, the spring 307 drives the hemisphere 305 to return to its original position, sealing and covering the conical hole 306.

[0035] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. An automatic fixture for CNC machining of aluminum alloy die-cast parts, characterized in that, include: Mounting base (1), a support plate (2) is fixedly provided above the mounting base (1), guide rails (3) are symmetrically fixed on the left and right sides of the support plate (2), an adapter clamping part (4) is provided in the middle of the support plate (2), a transverse moving module (5) is provided between each of the symmetrically arranged guide rails (3), a longitudinal moving module (6) is provided on each of the transverse moving modules (5), an adapter clamping part (7) is provided on each of the longitudinal moving modules (6), a top setting mechanism (100) is provided below the support plate (2) that can drive the adapter clamping part (4) to push upward, a main conveying part (8) is provided on both the front and rear sides of the support plate (2), and a secondary conveying part (9) is provided on each of the transverse moving modules (5).

2. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 1, characterized in that... The adapter mounting part (4) includes a support frame (41) fixed in the middle of the support plate (2). A first clearance groove (42) is provided below the support frame (41). Multiple first insertion grooves (43) that can communicate with the first clearance groove (42) are evenly distributed on the support frame (41). A recessed platform (44) is provided below each of the first insertion grooves (43). A first locking post (45) is movably inserted into each of the first insertion grooves (43). A baffle (46) that can be set in the recessed platform (44) is fixed below each of the first locking posts (45). A first spring (47) is connected below each of the baffles (46).

3. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 1, characterized in that... The transverse moving module (5) includes a transverse plate (51) that is movably inserted into each of two symmetrically arranged guide rails (3). A threaded sleeve (52) is fixed below each transverse plate (51). A screw (53) that can be threadedly engaged with the threaded sleeve (52) is movably sleeved on the left and right sides of the support plate (2). A first motor (54) is fixed on the left and right sides of the support plate (2). The output end of the first motor (54) is threadedly engaged with the adjacent screw (53).

4. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 3, characterized in that... The longitudinal moving module (6) includes a U-shaped frame (61) disposed on each transverse plate (51), a sliding groove (62) provided on each U-shaped frame (61), a symmetrically fixed insert shaft (63) that can pass through the adjacent transverse plate (51) below each U-shaped frame (61), and a first push cylinder (64) that can be connected and fixed to the insert shaft (63) below each transverse plate (51).

5. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 4, characterized in that... The adapter clamping part (7) includes a movable frame (71) movably inserted into each of the sliding grooves (62). A second clearance groove (72) is longitudinally provided within each of the movable frames (71). Multiple second insertion slots (73) that communicate with the second clearance grooves (72) are evenly distributed and penetrate each of the movable frames (71). A second locking post (74) is movably inserted into each of the second insertion slots (73). A second locking post (74) is fixedly connected between each of the second locking posts (74) and the second clearance groove (72). Two springs (75) are symmetrically fixed with waist-shaped grooves (76) on both the front and rear sides of each of the moving frames (71). A rotating plate (77) with a shaft is provided between every two symmetrically arranged waist-shaped grooves (76). A middle plate (78) is movably hinged between every two adjacent rotating plates (77). The shaft end of each rotating plate (77) is movably arranged in the adjacent waist-shaped guide groove (76). A second push cylinder (79) that can be connected to the moving frame (71) is fixed on one side of the transverse plate (51).

6. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 2, characterized in that... The top mounting mechanism (100) includes a top plate (101) with the bottom of the first clearance groove (42) and located below the first spring (47). Push grooves (102) are provided on both the front and rear sides of the top plate (101). Push plates (103) are provided in each push groove (102). Guide rods (104) that can pass through the support plate (2) are symmetrically provided below each push plate (103). Connecting plates (105) are fixedly connected between each symmetrically provided guide rod (104). Swing rods (106) are symmetrically hinged below the connecting plates (105). A fixed shaft (107) that can be set below the connecting plate (105) is fixed at the end of each swing rod (106). A waist groove block (108) is fixed at the hinge end of each swing rod (106). A third push cylinder (109) is fixed on the right side below the connecting plate (105). A horizontal plate (110) is fixed at the output end of the third push cylinder (109). A long shaft (111) that can be set in the groove of the waist groove block (108) is symmetrically fixed on the horizontal plate (110). A round plate (112) is fixed at the end of each long shaft (111).

7. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 1, characterized in that... The main conveying unit (8) includes fixed seats (81) symmetrically fixed on the front and rear sides of the support plate (2), and a first conveyor belt (82) is provided between each of the symmetrically arranged fixed seats (81).

8. The automatic fixture for CNC machining of aluminum alloy die-casting parts according to claim 3, characterized in that... The secondary conveying unit (9) includes extension plates (91) that extend and are fixed to the front and rear sides of the transverse plate (51), and a second conveyor belt (92) is provided on each of the extension plates (91).

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