A screw assembly machine for electrical appliance assembly

Abstract

The present invention relates to the field of electrical appliance assembly, and in particular to a screw assembly machine for electrical appliance assembly, comprising a chassis, a fixed support plate, a fixed transverse plate, a servo motor, etc.; a fixed support plate is fixedly connected to the top of the chassis, a fixed transverse plate is fixedly connected to the upper portion of the fixed support plate, and a servo motor is fixedly installed on the top of the chassis. Through the cooperation of a reciprocating steering assembly and a power connection assembly, the fan-shaped disk and the device thereon will reciprocate a quarter of a turn, driving two movable clamping plates to reciprocate a quarter of a turn, so that the screws on the two movable clamping plates just move to the position on the electrical appliance where the screws need to be screwed, and are located directly below a cross screwdriver, achieving a precise positioning effect.

Description

Technical Field

[0001] The invention relates to the field of electrical appliance assembly, and in particular to a screw assembly machine for electrical appliance assembly. Background Art

[0002] Screws are an indispensable industrial necessity in daily life. The function of screws is to connect two workpieces together. Screws can gradually tighten objects and parts. Therefore, the function of screws is very important. In the assembly of electrical appliances, screws need to be driven into the appliances to fix the parts on the appliances.

[0003] When screwing a screw into an electrical appliance, a person needs to hold the screw with one hand and align it with the screw hole on the electrical appliance, and hold the screwdriver with the other hand to align and contact the top of the screw, and then manually drive the screwdriver to rotate the screw and screw it into the screw hole on the electrical appliance. The person also needs to move the screwdriver downward and then drive the screw downward to screw it into the screw hole on the electrical appliance. If these steps are all done manually, the operation is cumbersome, and it is easy to hurt the hand during the screwing process. If the hand shakes when holding the screw, the screw will be tilted and misaligned, and it is difficult for the person to control the speed at which the screw moves downward and rotates simultaneously, and the speed of manual screwing is relatively slow. Summary of the invention

[0004] In order to solve the problems that manual screw driving is cumbersome and hands are easily injured during the screw driving process, hand shaking when holding the screw will cause the driven screw to tilt and deviate, and it is difficult to manually control the speed at which the screw moves downward and rotates synchronously, and the manual screw driving speed is relatively slow, the present invention provides a screw assembly machine for electrical appliance assembly that can position screws and screwdrivers and can quickly drive screws.

[0005] The technical implementation scheme of the present invention is: a screw assembly machine for electrical assembly, including a chassis, a fixed support plate, a fixed transverse plate, a servo motor, a reciprocating steering assembly, a power connection assembly, a power rotation assembly and an extrusion and lowering assembly. A fixed support plate is fixedly connected to the top of the chassis, a fixed transverse plate is fixedly connected to the upper part of the fixed support plate, a servo motor is fixedly installed on the top of the chassis, a reciprocating steering assembly is arranged on the servo motor and is connected to the fixed support plate, a power connection assembly is arranged on the fixed transverse plate, a power rotation assembly is arranged on the fixed transverse plate and is connected to the reciprocating steering assembly, and an extrusion and lowering assembly is arranged on the fixed support plate and is connected to the reciprocating steering assembly.

[0006] In one embodiment, the reciprocating steering assembly includes a power shaft, a fixed gear plate, a sector plate and a fixed gear. The power shaft is fixedly connected to the output shaft of the servo motor, a fixed gear plate is fixedly connected to the lower part of the power shaft, a fixed gear is rotatably connected to the fixed support plate, the fixed gear will mesh with the fixed gear plate, a sector plate is fixedly connected to the upper part of the fixed gear, the sector plate is located above the fixed gear plate, an arc groove is opened on the sector plate, and the power shaft is located in the arc groove of the sector plate.

[0007] In one embodiment, the power connection component includes a fixed support ring, an annular hollow turntable, a fixed seat, a fixed inner gear ring, a rotating guide shaft, a lifting gear, a transmission shaft, a fixed central gear, a lifting support rod and a fixed cam plate, a fixed support ring is fixedly connected to the fixed transverse plate, an annular hollow turntable is rotatably connected to the fixed support ring, the annular hollow turntable is located above the fan-shaped plate, a fixed seat is fixedly connected to the bottom of the fixed transverse plate, the fixed seat is located in the annular hollow turntable, a fixed inner gear ring is fixedly connected to the annular hollow turntable, and a rotating guide shaft is rotatably connected to the fixed seat. The bottom end of the rotating guide shaft is slidably connected with a lifting gear, which meshes with the fixed inner gear ring. The fixed transverse plate is rotatably connected with a transmission shaft, which passes through the fixed transverse plate. The lower part of the transmission shaft is fixedly connected with a fixed center gear, which meshes with the lifting gear. The lower part of the fixed seat is slidably connected with a lifting support rod, the top of the lifting support rod is in contact with the lower side of the lifting gear, the lifting support rod is located directly below the lifting gear, the top of the fan-shaped disk is fixedly connected with a fixed cam plate, the fixed cam plate is in contact with the lower end of the lifting support rod, and the fixed cam plate is located below the lifting support rod.

[0008] In one of the embodiments, the power rotating assembly includes a fixed large gear, a fixed small gear, a rotating wheel, a rotating groove ring seat, a power belt and a cross screwdriver. The top of the power shaft is fixedly connected to the fixed large gear, the top of the transmission shaft is fixedly connected to the fixed small gear, the fixed small gear is meshed with the fixed large gear, the lower part of the transmission shaft is fixedly connected to the rotating wheel, the rotating groove ring seat is rotatably connected to the fixed transverse plate, a power belt is wound between the rotating groove ring seat and the rotating wheel, a cross screwdriver is slidably connected to the rotating groove ring seat, and the cross screwdriver passes through the rotating groove ring seat.

[0009] In one of the embodiments, the extrusion and lowering assembly includes a fixed beveled ring seat, a fixed guide rod, an extrusion spring, a lowering support plate, a movable dial plate, a torsion spring 1, a movable clamping plate and a torsion spring 2. A fixed beveled ring seat is fixedly connected to the bottom of the annular hollow turntable, a fixed guide rod is slidably connected to the upper part of the fixed support plate, an extrusion spring is connected between the fixed guide rod and the fixed support plate, a lowering support plate is fixedly connected to the bottom end of the fixed guide rod, a cross screwdriver is rotatably connected to the lowering support plate, and the lowering support plate is in contact with the fixed beveled ring seat, a movable dial plate is rotatably connected to the fan-shaped disk, a torsion spring 1 is connected between the movable dial plate and the fan-shaped disk, two movable clamping plates are rotatably connected to the movable dial plate, the two movable clamping plates are symmetrically arranged, and a torsion spring 2 is connected between the movable clamping plate and the movable dial plate.

[0010] In one of the embodiments, a fixed oblique rod is further included. The bottom of the sector disk is fixedly connected with the fixed oblique rod. The fixed oblique rod is located between the movable clamping plates and contacts the movable clamping plates.

[0011] In one of the embodiments, a sliding friction ring is further included. The top of the lifting support rod is fixedly connected with the sliding friction ring, and the sliding friction ring is rotationally connected to the lifting gear.

[0012] In one of the embodiments, it also includes a screw supply assembly, which is arranged on the top of the chassis. The screw supply assembly includes a mounting plate, a feeding frame, a fixed outer gear ring, a bidirectional screw, a transmission gear, a lifting plate, a conveyor pulley and a friction conveyor belt. The top of the chassis is fixedly connected to a mounting plate, the upper part of the mounting plate is fixedly connected to the feeding frame, the feeding frame is slotted, the fixed outer gear ring is fixedly connected to the fixed gear plate, two bidirectional screws are rotatably connected to the feeding frame, the two bidirectional screws are symmetrically arranged, a transmission gear is fixedly connected to the bidirectional screw close to the fixed support plate, the transmission gear is meshed with the fixed outer gear ring, the lower parts of the two bidirectional screws are connected with a lifting plate by threaded cooperation, the lifting plate passes through the feeding frame, the upper part of the bidirectional screw is fixedly connected to the conveyor pulley, and a friction conveyor belt is wound around the two conveyor pulleys.

[0013] The beneficial effects of the present invention are:

[0014] 1. Through the cooperation of the reciprocating steering assembly and the power connection assembly, the fan-shaped disk and the device on it will reciprocate a quarter of a turn, driving the two movable clamping plates to reciprocate a quarter of a turn, so that the screws on the two movable clamping plates move just above the position where the screws need to be screwed on the electrical appliance, and are located directly below the cross screwdriver, achieving the effect of precise positioning.

[0015] 2. Through the cooperation of the power rotation component and the extrusion and lowering component, the cross screwdriver is aimed at the screws between the two movable clamping plates and pressed down, driving the cross screwdriver to rotate. The rotation of the cross screwdriver drives the screw to rotate. The cross screwdriver rotates and moves downward to screw the screws between the movable clamping plates into the electrical appliance to be processed. In this way, the screws can be screwed in quickly and accurately.

[0016] 3. By setting the fixed bevel rod, when the cross screwdriver is driving the screw, the fixed bevel rod will squeeze the movable clamping plate to open, making it easier for the cross screwdriver to thoroughly drive the screw into the electrical appliance, so that the screw can better fix the parts on the electrical appliance.

[0017] 4. The screws are delivered to between the two movable clamping plates through the screw supply assembly, so as to achieve the purpose of supplementing the screws between the two movable clamping plates, facilitate continuous screwing, and improve the efficiency of screwing the electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 4 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0022] Figure 5 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0023] Figure 6 It is a schematic diagram of a third partial three-dimensional structure of the present invention.

[0024] Figure 7 It is a schematic diagram of a fourth partial three-dimensional structure of the present invention.

[0025] Figure 8 It is a schematic diagram of a fifth partial three-dimensional structure of the present invention.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fan-shaped disk of the present invention.

[0027] Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of A of the present invention.

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the lifting support rod and the sliding friction ring of the present invention.

[0029] Fig.12 It is a schematic diagram of the sixth partial three-dimensional structure of the present invention.

[0030] Fig.13 It is a schematic diagram of the seventh partial three-dimensional structure of the present invention.

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of the material discharging frame of the present invention.

[0032] In the above figures: 1_chassis, 2_fixed support plate, 21_fixed transverse plate, 3_servo motor, 4_reciprocating steering assembly, 41_power shaft, 42_fixed toothed disc, 43_sector disc, 44_fixed gear, 5_power connection assembly, 51_fixed support ring, 52_annular hollow turntable, 53_fixed seat, 54_fixed inner gear ring, 55_rotating guide shaft, 56_lifting gear, 561_transmission shaft, 57_fixed central gear, 58_lifting support rod, 59_fixed cam disc, 6_power rotation assembly, 61_fixed large gear, 62_fixed small gear, 63_rotating Wheel, 64_rotating groove ring seat, 65_power belt, 66_cross screwdriver, 7_extrusion descending assembly, 71_fixed oblique ring seat, 72_fixed guide rod, 73_extrusion spring, 74_descending support plate, 75_movable dial plate, 76_torsion spring one, 77_movable clamping plate, 78_torsion spring two, 8_fixed oblique rod, 9_sliding friction ring, 11_screw supply assembly, 111_mounting plate, 112_discharge frame, 113_fixed outer gear ring, 114_bidirectional screw, 115_transmission gear, 116_lifting plate, 117_conveyor pulley, 118_friction conveyor belt. DETAILED DESCRIPTION

[0033] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0034] Example 1

[0035] A screw assembly machine for electrical assembly, such as Figure 1-10 As shown, it includes a chassis 1, a fixed support plate 2, a fixed transverse plate 21, a servo motor 3, a reciprocating steering assembly 4, a power connection assembly 5, a power rotation assembly 6 and an extrusion lowering assembly 7. The fixed support plate 2 is fixedly welded on the top of the chassis 1, and the fixed transverse plate 21 is fixedly connected to the upper part of the fixed support plate 2. The servo motor 3 is fixedly installed on the top of the chassis 1. The servo motor 3 is provided with a reciprocating steering assembly 4 and is connected to the fixed support plate 2. The power connection assembly 5 is provided on the fixed transverse plate 21. The power rotation assembly 6 is provided on the fixed transverse plate 21 and is connected to the reciprocating steering assembly 4. The fixed support plate 2 is provided with an extrusion lowering assembly 7 and is connected to the reciprocating steering assembly 4. The extrusion lowering assembly 7 is used to drive screws downward.

[0036] The reciprocating steering assembly 4 includes a power shaft 41, a fixed toothed disc 42, a sector disc 43 and a fixed gear 44. The power shaft 41 is connected to the output shaft of the servo motor 3 by welding. The fixed toothed disc 42 is fixedly connected to the lower part of the power shaft 41. The fixed support plate 2 is rotatably connected to the fixed gear 44, which will mesh with the fixed toothed disc 42. A sector disc 43 is fixedly welded to the upper part of the fixed gear 44. The sector disc 43 is located above the fixed toothed disc 42. An arc groove is opened on the sector disc 43, and the power shaft 41 is located in the arc groove of the sector disc 43.

[0037] The power connection assembly 5 includes a fixed support ring 51, an annular hollow turntable 52, a fixed seat 53, a fixed inner gear ring 54, a rotating guide shaft 55, a lifting gear 56, a transmission shaft 561, a fixed central gear 57, a lifting support rod 58 and a fixed cam plate 59. The fixed support ring 51 is welded on the fixed transverse plate 21, and the annular hollow turntable 52 is rotatably connected to the fixed support ring 51. The annular hollow turntable 52 is located above the fan-shaped plate 43. The bottom of the fixed transverse plate 21 is fixedly connected to the fixed seat 53 by bolts. The fixed seat 53 is located in the annular hollow turntable 52. The annular hollow turntable 52 is fixedly connected with a fixed inner gear ring 54. The fixed seat 53 is rotatably connected to the rotating guide shaft 55. The bottom end of the rotating guide shaft 55 is slidably connected There is a lifting gear 56, which meshes with the fixed inner gear ring 54. A transmission shaft 561 is rotatably connected to the fixed transverse plate 21. The transmission shaft 561 passes through the fixed transverse plate 21. The lower part of the transmission shaft 561 is connected to the fixed central gear 57 through a flat key. The fixed central gear 57 will mesh with the lifting gear 56. A lifting support rod 58 is slidably connected to the lower part of the fixed seat 53. The top of the lifting support rod 58 contacts the lower side of the lifting gear 56. The lifting support rod 58 is located directly below the lifting gear 56. A fixed cam plate 59 is fixedly connected to the top of the fan-shaped plate 43. The fixed cam plate 59 contacts the lower end of the lifting support rod 58. The fixed cam plate 59 is used to squeeze the lifting support rod 58 to move upward. The fixed cam plate 59 is located below the lifting support rod 58.

[0038] The power rotating assembly 6 includes a fixed large gear 61, a fixed small gear 62, a rotating wheel 63, a rotating groove ring seat 64, a power belt 65 and a cross screwdriver 66. The fixed large gear 61 is fixedly welded to the top of the power shaft 41, and the fixed small gear 62 is fixedly connected to the top of the transmission shaft 561. The fixed small gear 62 is meshed with the fixed large gear 61. The lower part of the transmission shaft 561 is connected to the rotating wheel 63 through a flat key. The rotating groove ring seat 64 is rotatably connected to the fixed transverse plate 21. A power belt 65 is wound between the rotating groove ring seat 64 and the rotating wheel 63. The power belt 65 is used to transmit power. A cross screwdriver 66 is slidably connected to the rotating groove ring seat 64. The cross screwdriver 66 is used to screw screws into the electrical appliance. The cross screwdriver 66 passes through the rotating groove ring seat 64.

[0039] The extrusion descending assembly 7 includes a fixed oblique ring seat 71, a fixed guide rod 72, an extrusion spring 73, a descending support plate 74, a movable dial plate 75, a torsion spring 1 76, a movable clamping plate 77 and a torsion spring 2 78. The bottom of the annular hollow turntable 52 is fixedly connected to the fixed oblique ring seat 71 by bolts, the upper part of the fixed support plate 2 is slidably connected to the fixed guide rod 72, the extrusion spring 73 is connected between the fixed guide rod 72 and the fixed support plate 2, and the bottom end of the fixed guide rod 72 is fixedly connected to the descending support plate 74. The screwdriver 66 is rotatably connected to the descending support plate 74, and the descending support plate 74 is in contact with the fixed bevel ring seat 71. A movable dial plate 75 is rotatably connected to the sector disk 43, and a torsion spring 1 76 is connected between the movable dial plate 75 and the sector disk 43. Two movable clamping plates 77 are rotatably connected to the movable dial plate 75. The movable clamping plates 77 are used to clamp screws. The two movable clamping plates 77 are symmetrically arranged, and a torsion spring 2 78 is connected between the movable clamping plate 77 and the movable dial plate 75.

[0040] When screwing is required, the staff manually places the electrical appliance to be processed under the cross screwdriver 66, and manually places a screw between the two movable clamping plates 77. The two movable clamping plates 77 will support the screw. Then the staff starts the servo motor 3 to reverse. The servo motor 3 will drive the power shaft 41, the fixed gear plate 42 and the fixed large gear 61 to reverse through the output shaft. The reverse rotation of the fixed gear plate 42 will engage with the fixed gear 44. The fixed gear plate 42 will drive the fixed gear 44, the fan-shaped plate 43 and the two movable clamping plates 77 to rotate clockwise by a quarter of a turn, so that the screw on the movable clamping plate 77 moves just above the position where the screw needs to be driven on the electrical appliance, and is located directly below the cross screwdriver 66, achieving the effect of precise positioning.

[0041] At the same time, the fixed toothed disc 42 will drive the fixed cam disc 59 to rotate, and the rotation of the fixed cam disc 59 will squeeze the lifting support rod 58 to move upward, and the lifting support rod 58 will push the lifting gear 56 to move upward, so that the lifting gear 56 is meshed with the fixed central gear 57, and the rotation of the fixed large gear 61 will drive the fixed small gear 62 and the device on it to rotate clockwise, and the fixed central gear 57 will drive the lifting gear 56 and the device on it to rotate counterclockwise, and the lifting gear 56 will drive the fixed inner gear ring 54 and the fixed bevel ring seat 71 to rotate counterclockwise, and the reverse rotation of the fixed bevel ring seat 71 will squeeze the descending support plate 74 As the cross screwdriver 66 moves downward, the extrusion spring 73 will be compressed, so that the cross screwdriver 66 is aligned with the screw between the two movable clamping plates 77 and pressed downward. At the same time, the rotating wheel 63 will drive the rotating groove ring seat 64 to rotate through the power belt 65, thereby driving the cross screwdriver 66 to rotate. The rotation of the cross screwdriver 66 drives the screw to rotate. The cross screwdriver 66 rotates and moves downward to screw the screws between the movable clamping plates 77 into the electrical appliance to be processed. In this way, the screws can be quickly screwed into the processed electrical appliance and can be screwed in accurately.

[0042] Then the fixed cam plate 59 will no longer support the lifting support rod 58, and the lifting support rod 58 and the lifting gear 56 will reset downward under the action of gravity, so that the lifting gear 56 is separated from the fixed center gear 57, and then the fixed bevel ring seat 71 will no longer squeeze the descending support plate 74, the squeezing spring 73 will reset and drive the fixed guide rod 72 and the device thereon to reset upward, and the cross screwdriver 66 will separate from the screw, making it easier to drive the next screw.

[0043] After the fixed gear 44 rotates clockwise for a quarter of a turn, the fixed toothed disc 42 will continue to rotate counterclockwise, and the fixed toothed disc 42 will drive the fixed gear 44 to rotate counterclockwise for a quarter of a turn, so that the sector disc 43 is reset to the initial position, which is convenient for continuous screwing.

[0044] When the cross screwdriver 66 presses down the screws between the movable clamping plates 77, the cross screwdriver 66 will drive the movable clamping plates 77 and the devices thereon to swing downward through the screws, and the torsion spring 76 will be twisted accordingly.

[0045] Example 2

[0046] On the basis of Example 1, Fig.10 As shown, it also includes a fixed oblique rod 8, which is welded to the bottom of the fan-shaped disk 43. The fixed oblique rod 8 is located between the movable clamping plates 77. The fixed oblique rod 8 will contact the movable clamping plates 77, and the fixed oblique rod 8 is used to squeeze the movable clamping plates 77 to swing left and right.

[0047] When the movable clamping plate 77 and the device thereon swing downward, the fixed inclined rod 8 will squeeze the two movable clamping plates 77 to swing left and right, and the torsion spring 2 78 will be twisted accordingly, so that the two movable clamping plates 77 no longer support the screw, so that the screw is separated from the two movable clamping plates 77, ensuring that the cross screwdriver 66 can completely drive the screw into the electrical appliance. When the screw is completely driven into the electrical appliance, the torsion spring 1 76 will reset and drive the movable plate 75 and the device thereon to reset, and the torsion spring 2 78 will reset and drive the two movable clamping plates 77 to reset.

[0048] Example 3

[0049] On the basis of Example 2, Fig.11 As shown, it also includes a sliding friction ring 9. The sliding friction ring 9 is fixedly welded to the top of the lifting support rod 58. The sliding friction ring 9 is rotatably connected to the lifting gear 56. The sliding friction ring 9 is used to prevent the lifting support rod 58 from directly contacting the lifting gear 56.

[0050] Due to the action of the sliding friction ring 9, when the lifting support rod 58 and the device thereon move upward, the sliding friction ring 9 drives the lifting gear 56 to move upward, preventing the lifting support rod 58 from directly contacting the lifting gear 56, making the transmission power between the fixed center gear 57, the lifting gear 56 and the fixed inner gear ring 54 more stable, thereby ensuring the stable operation of the equipment.

[0051] Example 4

[0052] On the basis of Example 3, Figure 12-14 As shown, it also includes a screw supply component 11, which is arranged on the top of the chassis 1. The screw supply component 11 is used to supplement screws between the two movable clamping plates 77. The screw supply component 11 includes a mounting plate 111, a discharge frame 112, a fixed outer gear ring 113, a bidirectional screw 114, a transmission gear 115, a lifting plate 116, a conveyor pulley 117 and a friction conveyor belt 118. The top of the chassis 1 is fixedly welded with a mounting plate 111, and the upper part of the mounting plate 111 is fixedly connected to the discharge frame 112. The discharge frame 112 is slotted, the fixed outer gear ring 113 is fixedly connected to the fixed toothed disc 42, and the discharge frame 112 is rotatably connected with two bidirectional screws 114 The two bidirectional screws 114 are symmetrically arranged. A transmission gear 115 is fixedly welded on the bidirectional screw 114 on the side close to the fixed support plate 2. The transmission gear 115 is meshed with the fixed outer gear ring 113. A lifting plate 116 is connected between the lower parts of the two bidirectional screws 114 by threaded cooperation. The lifting plate 116 is used to push a part of the screws in the discharge frame 112 to rise. The lifting plate 116 passes through the discharge frame 112. A conveyor pulley 117 is fixedly connected to the upper part of the bidirectional screw 114. A friction conveyor belt 118 is wound between the two conveyor pulleys 117. The friction conveyor belt 118 is used to convey the screws in the upper slot of the discharge frame 112 to between the two movable clamping plates 77.

[0053] Before the servo motor 3 operates, a certain amount of screws are installed in the discharge frame 112. Since the bottom of the discharge frame 112 is inclined, the screws in the discharge frame 112 will move closer to the top of the lifting plate 116. During the rotation of the fixed toothed disc 42 and the device thereon, the fixed outer gear ring 113 will drive the transmission gear 115 and the conveyor pulley 117 to rotate, thereby driving the friction conveyor belt 118 to rotate, thereby driving the two bidirectional screws 114 to rotate at the same time. Through the cooperation of the bidirectional screw 114 and the lifting plate 116, the lifting plate 116 will reciprocate up and down. When the lifting plate 116 moves upward, the lifting plate 116 pushes a part of the screws in the discharge frame 112 to rise, and the risen screws will fall into the slot on the upper part of the discharge frame 112, and then the screws in the slot on the upper part of the discharge frame 112 are transported to between the two movable clamping plates 77 through the friction conveyor belt 118, thereby achieving the purpose of supplementing the screws between the two movable clamping plates 77, facilitating continuous screwing, and improving the efficiency of screwing electrical appliances.

[0054] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A screw assembly machine for electrical appliance assembly, characterized in that: The invention comprises a chassis (1), a fixed support plate (2), a fixed transverse plate (21), a servo motor (3), a reciprocating steering assembly (4), a power connection assembly (5), a power rotation assembly (6) and an extrusion and lowering assembly (7), wherein the top of the chassis (1) is fixedly connected to the fixed support plate (2), the upper part of the fixed support plate (2) is fixedly connected to the fixed transverse plate (21), the top of the chassis (1) is fixedly mounted with a servo motor (3), the servo motor (3) is provided with a reciprocating steering assembly (4) and is connected to the fixed support plate (2), the fixed transverse plate (21) is provided with a power connection assembly (5), the fixed transverse plate (21) is provided with a power rotation assembly (6) and is connected to the reciprocating steering assembly (4), and the fixed support plate (2) is provided with an extrusion and lowering assembly (7) and is connected to the reciprocating steering assembly (4); The reciprocating steering assembly (4) comprises a power shaft (41), a fixed toothed disc (42), a sector disc (43) and a fixed gear (44); the power shaft (41) is fixedly connected to the output shaft of the servo motor (3); the fixed toothed disc (42) is fixedly connected to the lower part of the power shaft (41); the fixed support plate (2) is rotatably connected to the fixed gear (44); the fixed gear (44) meshes with the fixed toothed disc (42); the sector disc (43) is fixedly connected to the upper part of the fixed gear (44); the sector disc (43) is located above the fixed toothed disc (42); an arc groove is formed on the sector disc (43); and the power shaft (41) is located in the arc groove of the sector disc (43); The power connection assembly (5) comprises a fixed support ring (51), an annular hollow turntable (52), a fixed seat (53), a fixed inner gear ring (54), a rotating guide shaft (55), a lifting gear (56), a transmission shaft (561), a fixed central gear (57), a lifting support rod (58) and a fixed cam plate (59). The fixed support ring (51) is fixedly connected to the fixed transverse plate (21). The fixed support ring (51) is rotatably connected to the annular hollow turntable (52). The annular hollow turntable (52) is located above the fan-shaped plate (43). The fixed seat (53) is fixedly connected to the bottom of the fixed transverse plate (21). The fixed seat (53) is located in the annular hollow turntable (52). The annular hollow turntable (52) is fixedly connected to the fixed inner gear ring (54). The fixed seat (53) is rotatably connected to the rotating guide shaft (55). The bottom end of the guide shaft (55) is slidably connected to a lifting gear (56), and the lifting gear (56) meshes with the fixed inner gear ring (54). The fixed transverse plate (21) is rotatably connected to a transmission shaft (561), and the transmission shaft (561) passes through the fixed transverse plate (21). The lower part of the transmission shaft (561) is fixedly connected to a fixed central gear (57), and the fixed central gear (57) meshes with the lifting gear (56). The lower part of the fixed seat (53) is slidably connected to a lifting support rod (58), and the top of the lifting support rod (58) contacts the lower side of the lifting gear (56), and the lifting support rod (58) is located directly below the lifting gear (56). The top of the fan-shaped plate (43) is fixedly connected to a fixed cam plate (59), and the fixed cam plate (59) contacts the lower end of the lifting support rod (58), and the fixed cam plate (59) is located below the lifting support rod (58); The power rotating assembly (6) comprises a fixed large gear (61), a fixed small gear (62), a rotating wheel (63), a rotating groove ring seat (64), a power belt (65) and a cross screwdriver (66); the fixed large gear (61) is fixedly connected to the top of the power shaft (41); the fixed small gear (62) is fixedly connected to the top of the transmission shaft (561); the fixed small gear (62) is meshed with the fixed large gear (61); the rotating wheel (63) is fixedly connected to the lower part of the transmission shaft (561); the rotating groove ring seat (64) is rotatably connected to the fixed transverse plate (21); a power belt (65) is wound between the rotating groove ring seat (64) and the rotating wheel (63); a cross screwdriver (66) is slidably connected to the rotating groove ring seat (64); and the cross screwdriver (66) passes through the rotating groove ring seat (64); The extrusion lowering assembly (7) comprises a fixed oblique ring seat (71), a fixed guide rod (72), an extrusion spring (73), a lowering support plate (74), a movable dial plate (75), a first torsion spring (76), a movable clamping plate (77) and a second torsion spring (78). The bottom of the annular hollow turntable (52) is fixedly connected to the fixed oblique ring seat (71), the upper part of the fixed support plate (2) is slidably connected to the fixed guide rod (72), the extrusion spring (73) is connected between the fixed guide rod (72) and the fixed support plate (2), and the lowering support plate (74) is fixedly connected to the bottom end of the fixed guide rod (72). The cross screwdriver (66) is rotatably connected to the descending support plate (74), and the descending support plate (74) is in contact with the fixed oblique ring seat (71). The fan-shaped disk (43) is rotatably connected to a movable dial plate (75), and a torsion spring (76) is connected between the movable dial plate (75) and the fan-shaped disk (43). The movable dial plate (75) is rotatably connected to two movable clamping plates (77), and the two movable clamping plates (77) are symmetrically arranged. A torsion spring (78) is connected between the movable clamping plate (77) and the movable dial plate (75).

2. The screw assembly machine for electrical appliance assembly as claimed in claim 1, characterized in that: It also includes a fixed oblique rod (8), the bottom of the sector disk (43) is fixedly connected with the fixed oblique rod (8), the fixed oblique rod (8) is located between the movable clamping plates (77), and the fixed oblique rod (8) is in contact with the movable clamping plates (77).

3. The screw assembly machine for electrical appliance assembly as claimed in claim 2, characterized in that: It also includes a sliding friction ring (9), the top of the lifting support rod (58) is fixedly connected to the sliding friction ring (9), and the sliding friction ring (9) is rotatably connected to the lifting gear (56).

4. The screw assembly machine for electrical appliance assembly as claimed in claim 3, characterized in that: The invention also comprises a screw supply assembly (11), which is arranged on the top of the chassis (1). The screw supply assembly (111) comprises a mounting plate (111), a material discharge frame (112), a fixed outer gear ring (113), a bidirectional screw (114), a transmission gear (115), a lifting plate (116), a conveyor pulley (117) and a friction conveyor belt (118). The top of the chassis (1) is fixedly connected to the mounting plate (111), the upper part of the mounting plate (111) is fixedly connected to the material discharge frame (112), the material discharge frame (112) is provided with a slot, the fixed outer gear ring (113) is fixedly connected to the fixed toothed disc (42), and the material discharge frame (112) is provided with a slot. Two bidirectional screws (114) are rotatably connected to the material frame (112). The two bidirectional screws (114) are symmetrically arranged. A transmission gear (115) is fixedly connected to the bidirectional screw (114) on the side close to the fixed support plate (2). The transmission gear (115) is meshed with the fixed outer gear ring (113). A lifting plate (116) is connected between the lower parts of the two bidirectional screws (114) by threaded engagement. The lifting plate (116) passes through the material discharging frame (112). A conveyor pulley (117) is fixedly connected to the upper part of the bidirectional screw (114). A friction conveyor belt (118) is wound between the two conveyor pulleys (117).

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