A transmission system for a bolt assembly

Abstract

The present invention discloses a transmission system for bolt assemblies, which includes a conveyor belt and a plurality of assembly stations located on the periphery of the conveyor belt and used for assembling hexagon bolts, washers and hexagon nuts. An assembly table is arranged inside the assembly station, and a base is arranged on the assembly table. A plurality of first hexagon grooves are formed on the periphery of the upper surface of the base at uniformly spaced intervals along the periphery of the base for the head ends of the hexagon bolts to be embedded. A column extending in the vertically upward direction is arranged at the center of the upper surface of the base, and an assembly component for simultaneously screwing a plurality of hexagon nuts onto the upper end of the hexagon bolt is arranged on the column. A blanking plate extending obliquely downward toward the conveyor belt side is also arranged on the base. By using the assembly component, a plurality of hexagon nuts can be simultaneously screwed onto the hexagon bolt. The assembled bolt assemblies can then slide down along the blanking plate into the conveyor belt, and the bolt assemblies can be conveyed out through the conveyor belt.

Description

Technical Field

[0001] The invention belongs to the technical field of bolt processing, and in particular relates to a transmission system for a bolt assembly. Background Art

[0002] Bolt: A mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

[0003] In the prior art, when the bolts are processed and packaged, since the bolts often need to be matched with nuts and washers, in order to ensure that the number of bolts, nuts and washers corresponds to each other when they are packaged for sale, and at the same time it is convenient to take the bolts, nuts and washers together, the operator needs to put the washer on the bolt and thread the nut on the bolt when packaging. At this time, a bolt assembly with bolts, nuts and washers can be assembled. However, the whole assembly process is time-consuming and labor-intensive, and the operator's hands will also be tired if he twists the nuts for a long time. Summary of the invention

[0004] The object of the present invention is to provide a transmission system for a bolt assembly, which can facilitate the assembly and transportation of the bolt assembly.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a transmission system for bolt assemblies, comprising a conveyor belt, a plurality of assembly stations located on the periphery of the conveyor belt and used to assemble hexagonal bolts, washers and hexagonal nuts, an assembly table being arranged in the assembly station, a base being arranged on the assembly table, a plurality of first hexagonal grooves evenly distributed along the periphery of the base and for the head ends of the hexagonal bolts to be embedded are opened on the periphery of the upper surface of the base, a column extending in a vertical upward direction is arranged at the center of the upper surface of the base, an assembly assembly for simultaneously threading a plurality of hexagonal nuts to the upper ends of the hexagonal bolts is arranged on the column, and a blanking plate extending obliquely downward toward one side of the conveyor belt is also arranged on the base.

[0006] By adopting the above technical solution, each assembly station corresponds to an operator. The operator embeds the head ends of multiple hexagon bolts into the first hexagon slots on the base, and the washers are sleeved on the hexagon bolts. Then, the assembly component can be used to thread multiple hexagon nuts onto the hexagon bolts simultaneously, thus completing the assembly of the entire bolt component. After the assembly is completed, the bolt component can slide down along the blanking plate into the conveyor belt, and the bolt component can be conveyed out through the conveyor belt. Compared with the prior art where the operator manually threads the hexagon nuts onto the hexagon bolts one by one, the quick assembly and conveyance of the bolt component can be achieved.

[0007] The further setting of the present invention is: The assembly component includes a lifting disc arranged on the column and located above the base, a cavity layer opened in the lifting disc, a bushing arranged at the center of the cavity layer and allowing the column to pass through, multiple movable columns rotatably connected to the periphery of the lifting disc and respectively corresponding to multiple first hexagon slots, a first through hole opened on the lower surface of the lifting disc and allowing the lower ends of the movable columns to pass through, a second hexagon slot opened on the lower end surface of the movable column and allowing the hexagon nut to be embedded, a magnet ring embedded on the inner wall above the second hexagon slot and used for attracting the hexagon nut, and a driving member arranged in the lifting disc and used for driving multiple movable columns to rotate simultaneously.

[0008] By adopting the above technical solution, multiple hexagon nuts are embedded in the second hexagon slots. At this time, the magnet rings in the second hexagon slots can attract the hexagon nuts, which is beneficial to the stable embedding of the hexagon nuts in the second hexagon slots. Then, the driving member is used to drive multiple movable columns to rotate simultaneously. The movable columns can drive the hexagon nuts in the second hexagon slots to rotate, and at the same time, the lifting disc is moved downward along the column. When the hexagon nuts abut against the hexagon bolts, multiple hexagon nuts on the lifting disc can be respectively threadedly connected to multiple hexagon bolts on the base, and finally, the simultaneous assembly of multiple bolt components can be completed.

[0009] The further setting of the present invention is: A fixed disc is arranged at the upper end of the column, and a return spring with the upper end connected to the fixed disc and the lower end connected to the upper surface of the lifting disc is sleeved on the upper side of the column.

[0010] By adopting the above technical solution, the upper end of the return spring is connected to the fixed disc and the lower end is connected to the upper surface of the lifting disc. The elastic restoring force of the return spring can facilitate the reset of the lifting disc after it moves upward. At the same time, when it is necessary to move the lifting disc downward, the operator only needs to apply a downward pressure to the lifting disc, and then the return spring can be stretched and the lifting disc can move downward.

[0011] The further setting of the present invention is: A plurality of top columns respectively corresponding to multiple first hexagon slots are arranged on the circumferential side of the lower surface of the fixed disc. A second through hole allowing the top columns to pass through is opened on the upper side of the lifting disc, and a third through hole communicating with the second hexagon slot and allowing the top columns to pass through is opened on the movable column.

[0012] By adopting the above technical scheme, when the bolt assembly is assembled and the lifting plate is driven to move upward under the elastic restoring force of the reset spring, the push column on the fixed plate can pass through the second through hole on the lifting plate and then pass into the third through hole on the movable column. At this time, since the third through hole is communicated with the second hexagonal groove, and the hexagonal nut in the bolt assembly is attracted to the magnet ring in the second hexagonal groove, the push column can abut against the end of the hexagonal bolt in the bolt assembly when passing through the second hexagonal groove. Finally, the bolt assembly can be pushed down from the second hexagonal groove by the push column, so that the bolt assembly falls off the lifting plate. At this time, it is convenient to simultaneously remove multiple bolt assemblies attracted on the lifting plate.

[0013] The present invention is further configured as follows: the upright column is also provided with a guide member for the bolt assembly to fall into the blanking plate after it falls down.

[0014] By adopting the above technical solution, the guide member can be used to guide the multiple bolt assemblies falling from the lifting plate, so that the multiple bolt assemblies fall into the blanking plate, and finally the multiple bolt assemblies can be quickly dropped into the conveyor belt along the blanking plate.

[0015] The present invention is further configured as follows: the guide member includes a storage ring groove opened on the circumferential side of the column and located on the lower side of the lifting plate, a plurality of connecting grooves opened on the circumferential inner wall of the storage ring groove and extending in the vertical direction, a support arm whose upper end is hinged in the upper end of the connecting groove, an annular soft membrane arranged between the plurality of support arms, a reset spring piece whose one end is connected to the lower side of the support arm and the other end is embedded in the connecting groove, a drive sleeve arranged on the lower side of the lifting plate and sleeved on the column, and a groove opened on the base and for the drive sleeve to be embedded.

[0016] By adopting the above technical scheme, when the lifting plate moves downward, the driving sleeve can be wrapped around the multiple support arms, so that the multiple support arms are retracted into the connecting grooves, and the reset spring sheet is pressed in the connecting grooves, and the annular soft film is contracted and stored in the peripheral side of the storage annular groove, wherein when the lifting plate moves down to the hexagonal nut and the hexagonal bolt are connected, the driving sleeve is embedded in the groove on the base; and when the lifting plate moves up, the driving sleeve can be removed from the support arm, and at this time, the support arm can be pushed down under the elastic restoring force of the reset spring sheet, and then the multiple support arms can be simultaneously rotated toward the side away from the connecting groove, and the annular soft film is opened, and at this time, when the lifting plate moves up to the top column to push the bolt assembly down, the fallen bolt assembly can slide along the support arm and the annular soft film toward the peripheral side of the base, and finally the bolt assembly can be tilted and fall into the blanking plate, thereby facilitating the multiple bolt assemblies to quickly fall into the conveyor belt along the blanking plate.

[0017] A further setting of the present invention is that a connecting sleeve sleeving around the peripheral side of the movable column is arranged on the inner wall of the cavity layer, a positioning ring is arranged on the inner peripheral wall of the connecting sleeve, and an annular groove for the positioning ring to be embedded in is formed on the outer peripheral wall of the movable column.

[0018] By adopting the above technical solution, the connecting sleeve is sleeved around the peripheral side of the movable column, and the positioning ring on the inner peripheral wall of the connecting sleeve is embedded in the annular groove on the outer peripheral wall of the movable column. At this time, the cooperation of the positioning ring and the annular groove can limit the up-and-down movement of the movable column, and at the same time, the movable column can rotate around the central axis.

[0019] A further setting of the present invention is that the driving member includes an internal gear ring rotatably connected to the inner wall of the cavity layer, an external gear ring fixed to the peripheral side of the upper end of the movable column and meshing in the internal gear ring, a driving motor arranged on the upper surface of the lifting plate and whose output shaft penetrates into the cavity layer, and a driving gear fixed on the output shaft of the driving motor and meshing in the internal gear ring.

[0020] By adopting the above technical solution, the driving motor is used to drive the driving gear to rotate, and the driving gear can drive the internal gear ring to rotate. Since the internal gear ring meshes with the external gear rings on a plurality of movable columns at the same time, the rotation of the internal gear ring can drive a plurality of movable columns to rotate at the same time.

[0021] A further setting of the present invention is that "C"-shaped handles are arranged on both sides of the lifting plate, and four positioning columns extending in the vertically upward direction and respectively embedded in the corners of the two handles are arranged on the blanking plate.

[0022] By adopting the above technical solution, an operator can conveniently push the lifting plate up or down by using the handles, and at the same time, the positioning columns are embedded in the corners of the handles, so as to position the circumferential rotation of the lifting plate through the two positioning columns and prevent the lifting plate from rotating circumferentially around the column.

[0023] A further setting of the present invention is that a storage box for storing hexagon bolts, washers and hexagon nuts is arranged on one side of the assembly table, and two partition plates for dividing the storage box into three cavities are arranged in the storage box.

[0024] By adopting the above technical solution, the storage box with partition plates can conveniently store the hexagon bolts, washers and hexagon nuts separately, and finally it is convenient for the operator to quickly take them.

[0025] The beneficial effect of the present invention is that each assembly station corresponds to an operator. The operator embeds the head ends of a plurality of hexagon bolts into the first hexagon grooves on the base, sleeving the washers on the hexagon bolts, and at the same time embeds a plurality of hexagon nuts into the second hexagon grooves on the lifting plate. Among them, the hexagon nuts can be attracted by the magnet rings in the second hexagon grooves;

[0026] Subsequently, the driving motor drives the driving gear to rotate, and the driving gear can drive the internal gear ring to rotate. Since the internal gear ring meshes with the external gear rings on multiple movable columns at the same time, the rotation of the internal gear ring can drive multiple movable columns to rotate at the same time. The movable columns can drive the hexagonal nuts in the second hexagonal grooves to rotate. At the same time, the operator presses down the lifting plate so that the lifting plate moves downward along the column, and the return spring is stretched;

[0027] When the lifting plate moves downward, the driving sleeve can wrap around multiple support arms, causing the multiple support arms to retract into the connection grooves, and the return elastic pieces are pressed tightly in the connection grooves. At the same time, after the annular soft film shrinks, it is received on the periphery of the receiving ring groove;

[0028] When the lifting plate moves downward until the hexagonal nuts contact the hexagonal bolts, the multiple hexagonal nuts on the lifting plate can be respectively threadedly connected to the multiple hexagonal bolts on the base. Subsequently, under the action of the elastic restoring force of the return spring, the lifting plate moves upward. At the same time, the bolt assembly is attracted to the magnet ring and moves upward together with the lifting plate;

[0029] As the lifting plate moves upward, the driving sleeve can move away from the support arms. At this time, under the action of the elastic restoring force of the return elastic pieces, the support arms can be pushed, and then the multiple support arms can rotate away from the connection grooves at the same time, and the annular soft film is opened;

[0030] Subsequently, the top columns on the fixed plate can pass through the second through holes on the lifting plate and then penetrate into the third through holes on the movable columns. At this time, since the third through holes communicate with the second hexagonal grooves, and the hexagonal nuts in the bolt assembly are attracted to the magnet ring in the second hexagonal grooves, when the top columns penetrate into the second hexagonal grooves, they can contact the ends of the hexagonal bolts in the bolt assembly. Finally, the bolt assembly can be pushed down from the second hexagonal groove through the top columns, causing the bolt assembly to fall off the lifting plate;

[0031] The falling bolt assembly can slide along the support arms and the annular soft film towards the periphery of the base, and finally the bolt assembly can tilt and fall into the blanking plate, so as to facilitate the multiple bolt assemblies to quickly fall into the conveyor belt along the blanking plate; and then the bolt assembly can be conveyed out through the conveyor belt. Compared with the prior art where the operator needs to manually thread the hexagonal nuts onto the hexagonal bolts one by one, the quick assembly and conveyance of the bolt assembly can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is the structural schematic diagram of the present invention;

[0034] Figure 2 is the enlarged view of the connection relationship between the base and the assembly component of the present invention. At this time, the head end of the hexagonal bolt is embedded in the first hexagonal groove and the hexagonal nut is embedded in the second hexagonal groove;

[0035] Figure 3 is the enlarged view of the connection relationship between the base and the assembly component of the present invention. At this time, after the bolt assembly is assembled and falls under the push of the ejector pin, it slides down along the support arm and the annular soft film;

[0036] Figure 4 is the structural cross-sectional view of the lifting disc of the present invention, used to show the internal structure of the lifting disc;

[0037] Figure 5 is the partial cross-sectional view of the connection relationship between the lifting disc and the movable column of the present invention;

[0038] Figure 6 is the partial cross-sectional view of the connection relationship between the base, the column and the guide member of the present invention. At this time, the support arm and the annular soft film are in the unfolded state;

[0039] Figure 7 is the partial cross-sectional view of the connection relationship between the base, the column and the guide member of the present invention. At this time, the lifting disc moves down to the lower limit position and the support arm and the annular soft film are in the retracted state, and the lifting disc is represented by a dotted line.

[0040] In the figure, 1, conveyor belt; 101, hexagonal bolt; 102, washer; 103, hexagonal nut; 2, assembly table; 21, storage box; 211, partition board; 3, base; 31, first hexagonal groove; 32, column; 321, fixed disc; 322, return spring; 323, ejector pin; 33, blanking plate; 331, positioning post; 4, assembly component; 41, lifting disc; 411, second through hole; 412, handle; 42, cavity layer; 421, connecting sleeve; 422, positioning ring; 43, bushing; 44, movable column; 441, third through hole; 442, annular groove; 45, first through hole; 46, second hexagonal groove; 47, magnet ring; 48, driving member; 481, internal gear ring; 482, external gear ring; 483, driving motor; 484, driving gear; 5, guide member; 51, storage ring groove; 52, connecting groove; 53, support arm; 54, annular soft film; 55, return elastic piece; 56, driving sleeve; 57, groove. Detailed implementation mode

[0041] The technical solutions in the embodiments will be described clearly and completely below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0042] A transmission system for a bolt assembly, referring to Figure 1 , the transmission system for the bolt assembly includes a conveyor belt 1 and a plurality of assembly stations located on the periphery of the conveyor belt 1. The assembly stations are used to assemble the entire bolt assembly. The bolt assembly includes a hexagon bolt 101, a washer 102, and a hexagon nut 103. An assembly table 2 is arranged in the assembly station. A storage box 21 is placed on one side of the assembly table 2. At the same time, two partition plates 211 for dividing the storage box 21 into three cavities are integrally arranged in the storage box 21. The three cavities can respectively store the hexagon bolt 101, the washer 102, and the hexagon nut 103.

[0043] Referring to Figure 1 , Figure 2 , Figure 3 , a base 3 is fixed to the assembly table 2 by bolts. A plurality of first hexagon grooves 31 are formed on the periphery of the upper surface of the base 3. The plurality of first hexagon grooves 31 are evenly spaced along the periphery of the base 3. The first hexagon grooves 31 can receive the head ends of the hexagon bolts 101. At the same time, a column 32 extending vertically upward is welded at the center of the upper surface of the base 3. An assembly component 4 for simultaneously screwing a plurality of hexagon nuts 103 onto the upper end of the hexagon bolt 101 is arranged on the column 32. A blanking plate 33 extending obliquely downward toward the conveyor belt 1 is also fixed to the base 3 by bolts.

[0044] Referring to Figure 1 , Figure 2 , Figure 4 , Figure 5The assembly component 4 includes a lifting plate 41, a cavity layer 42, a sleeve 43, a movable column 44, a first through hole 45, a second hexagonal slot 46, a magnet ring 47, and a driving member 48, wherein the lifting plate 41 is arranged on the column 32 and is located on the upper side of the base 3, and the cavity layer 42 is opened in the lifting plate 41, and the sleeve 43 is integrally arranged at the center of the cavity layer 42 and is passed through by the column 32. At this time, the lifting plate 41 can move up and down along the column 32, and both sides of the lifting plate 41 are welded with handles 412 in the shape of a "匚" character, and at the same time, four extending in the vertical upward direction and respectively embedded in the two handles 412 are welded on the blanking plate 33. The positioning column 331 in the corner can position the circumferential rotation of the lifting plate 41; wherein the movable column 44 is provided with multiple and all are rotatably connected to the circumference of the lifting plate 41, and the multiple movable columns 44 correspond to the positions of the multiple first hexagonal grooves 31 respectively, and the first through hole 45 is opened on the lower surface of the lifting plate 41 and is used for the lower end of the movable column 44 to pass through, and the inner wall of the cavity layer 42 is integrally provided with a connecting sleeve 421 sleeved on the circumference of the movable column 44, wherein the circumferential inner wall of the connecting sleeve 421 is integrally provided with a positioning ring 422, and the circumferential outer wall of the movable column 44 is provided with an annular groove 442 for the positioning ring 422 to be embedded.

[0045] Reference Figure 2 , Figure 4 , Figure 5 , the second hexagonal groove 46 is opened at the lower end surface of the movable column 44 and is provided for the hexagonal nut 103 to be embedded, wherein the magnet ring 47 is bonded and embedded in the upper inner wall of the second hexagonal groove 46, and the magnet ring 47 can be used to attract the hexagonal nut 103; and the driving member 48 is arranged in the lifting plate 41 and is used to drive multiple movable columns 44 to rotate at the same time. The driving member 48 includes an inner gear ring 481, an outer gear ring 482, a driving motor 483, and a driving gear 484, wherein the inner gear ring 481 is rotatably connected to the inner wall of the cavity layer 42 through a bearing, and the outer gear ring 482 is welded to the circumference of the upper end of the movable column 44 and meshed in the inner gear ring 481, and the driving motor 483 is fixed to the upper surface of the lifting plate 41 by bolts and the output shaft penetrates into the cavity layer 42, and the driving gear 484 is welded on the output shaft of the driving motor 483 and meshed in the inner gear ring 481.

[0046] Reference Figure 2 , Figure 4 , Figure 5, a fixing plate 321 is also welded to the upper end of the column 32, and a return spring 322 is sleeved on the upper side of the column 32, with its upper end welded to the fixing plate 321 and its lower end welded to the upper surface of the lifting plate 41; a plurality of top columns 323 extending vertically downward are welded to the circumferential side of the lower surface of the fixing plate 321, and the plurality of top columns 323 respectively correspond to a plurality of first hexagonal grooves 31. At the same time, a second through hole 411 for the top columns 323 to pass through is opened on the upper side of the lifting plate 41, and a third through hole 441 communicating with the second hexagonal groove 46 and for the top columns 323 to pass through is opened on the movable column 44.

[0047] Refer to Figure 3 , Figure 6 , Figure 7 , a guiding member 5 for the bolt assembly to fall into the blanking plate 33 after falling is further provided on the column 32. The guiding member 5 includes a receiving annular groove 51, a connecting groove 52, a support arm 53, an annular soft film 54, a return elastic sheet 55, a driving sleeve 56, and a groove 57. The receiving annular groove 51 is opened on the circumferential side of the column 32 and is located below the lifting plate 41. A plurality of connecting grooves 52 are provided and opened on the inner wall of the circumferential side of the receiving annular groove 51, and the plurality of connecting grooves 52 are evenly spaced along the circumferential side of the receiving annular groove 51. At the same time, the upper end of the support arm 53 is hinged inside the upper end of the connecting groove 52, and the annular soft film 54 is bonded between the plurality of support arms 53. The annular soft film 54 is an elastic TPU film, having good elasticity and toughness. The return elastic sheet 55 is made of spring steel. One end of the return elastic sheet 55 is welded to the lower side of the support arm 53 and the other end is embedded in the connecting groove 52. The driving sleeve 56 is welded to the lower side of the lifting plate 41 and sleeved on the column 32. At the same time, the groove 57 is opened on the base 3 for the driving sleeve 56 to be embedded.

[0048] Principle: Each assembly station corresponds to an operator. The operator embeds the head ends of a plurality of hexagonal bolts 101 into the first hexagonal grooves 31 on the base 3, and the washers 102 are sleeved on the hexagonal bolts 101. At the same time, a plurality of hexagonal nuts 103 are embedded into the second hexagonal grooves 46 on the lifting plate 41. The hexagonal nuts 103 can be attracted by the magnet ring 47 in the second hexagonal groove 46.

[0049] Subsequently, the driving motor 483 drives the driving gear 484 to rotate. The driving gear 484 can drive the internal gear ring 481 to rotate. Since the internal gear ring 481 is simultaneously meshed with the external gear rings 482 on a plurality of movable columns 44, the rotation of the internal gear ring 481 can simultaneously drive a plurality of movable columns 44 to rotate. The movable columns 44 can drive the hexagonal nuts 103 in the second hexagonal grooves 46 to rotate. At the same time, the operator presses down the lifting plate 41 so that the lifting plate 41 moves downward along the column 32 and the positioning column 331, and the return spring 322 is stretched.

[0050] When the lifting disc 41 is moving downward, the driving sleeve 56 can wrap around multiple support arms 53, causing the multiple support arms 53 to retract into the connecting groove 52, and the reset elastic piece 55 is pressed tightly in the connecting groove 52. At the same time, after the annular soft film 54 shrinks, it is received on the periphery of the receiving annular groove 51;

[0051] When the lifting disc 41 moves downward until the hex nuts 103 abut against the hex bolts 101, the multiple hex nuts 103 on the lifting disc 41 can be respectively threadedly connected to the multiple hex bolts 101 on the base 3. Subsequently, under the action of the elastic restoring force of the reset spring 322, the lifting disc 41 moves upward. At the same time, the bolt assembly is attracted to the magnet ring 47 and moves upward together with the lifting disc 41;

[0052] As the lifting disc 41 moves upward, the driving sleeve 56 can move away from the support arms 53. At this time, under the action of the elastic restoring force of the reset elastic piece 55, the support arms 53 can be pushed. Subsequently, the multiple support arms 53 can simultaneously rotate toward the side away from the connecting groove 52, and the annular soft film 54 is opened;

[0053] Subsequently, the ejector post 323 on the fixed disc 321 can pass through the second through hole 411 on the lifting disc 41 and then penetrate into the third through hole 441 on the movable column 44. At this time, since the third through hole 441 communicates with the second hexagonal groove 46, and the hex nut 103 in the bolt assembly is attracted to the magnet ring 47 in the second hexagonal groove 46, when the ejector post 323 penetrates into the second hexagonal groove 46, it can abut against the end of the hex bolt 101 in the bolt assembly. Finally, the bolt assembly can be pushed down from the second hexagonal groove 46 through the ejector post 323, causing the bolt assembly to fall off the lifting disc 41;

[0054] The falling bolt assembly can slide along the support arms 53 and the annular soft film 54 toward the periphery of the base 3, and finally the bolt assembly can fall obliquely into the blanking plate 33, facilitating the rapid fall of multiple bolt assemblies into the conveyor belt 1 along the blanking plate 33; and then the bolt assembly can be conveyed out through the conveyor belt 1. Compared with the prior art where operators need to thread the hex nuts 103 onto the hex bolts 101 one by one, the rapid assembly and conveyance of the bolt assembly can be realized.

Claims

1. A transmission system for a bolt assembly, characterized in that: It includes a conveyor belt (1), and a plurality of assembly stations located on the peripheral side of the conveyor belt (1) and used for assembling hexagon head bolts (101), washers (102) and hexagon nuts (103). An assembly table (2) is arranged in the assembly station. A base (3) is arranged on the assembly table (2). A plurality of first hexagon grooves (31) which are evenly spaced along the peripheral side of the base (3) and for the head ends of the hexagon head bolts (101) to be embedded are formed on the peripheral side of the upper surface of the base (3). A column (32) extending in the vertically upward direction is arranged at the center of the upper surface of the base (3). An assembly component (4) for simultaneously screwing a plurality of hexagon nuts (103) onto the upper end of the hexagon head bolt (101) is arranged on the column (32). A blanking plate (33) which extends obliquely downward toward the conveyor belt (1) is also arranged on the base (3); The assembly component (4) includes a lifting disc (41) arranged on the column (32) and located above the base (3), a cavity layer (42) formed in the lifting disc (41), a bushing (43) arranged at the center of the cavity layer (42) and through which the column (32) passes, a plurality of movable columns (44) rotatably connected to the peripheral side of the lifting disc (41) and respectively corresponding to the plurality of first hexagon grooves (31), a first through hole (45) formed in the lower surface of the lifting disc (41) for the lower ends of the movable columns (44) to pass through, a second hexagon groove (46) formed in the lower end surface of the movable column (44) for the hexagon nut (103) to be embedded, a magnet ring (47) embedded in the inner wall on the upper side of the second hexagon groove (46) and used for attracting the hexagon nut (103), and a driving member (48) arranged in the lifting disc (41) and used for simultaneously driving the plurality of movable columns (44) to rotate; A fixing disc (321) is arranged at the upper end of the column (32). A return spring (322) with the upper end connected to the fixing disc (321) and the lower end connected to the upper surface of the lifting disc (41) is sleeved on the upper side of the column (32); A plurality of ejector pins (323) respectively corresponding to the plurality of first hexagon grooves (31) are arranged on the peripheral side of the lower surface of the fixing disc (321). A second through hole (411) for the ejector pins (323) to pass through is formed in the upper side of the lifting disc (41). A third through hole (441) which is communicated with the second hexagon groove (46) and for the ejector pin (323) to pass through is formed in the movable column (44); A guide member (5) for the bolt assembly to fall into the blanking plate (33) after falling is also arranged on the column (32);The guiding member (5) includes a receiving annular groove (51) formed on the circumferential side of the column (32) and located below the lifting disc (41), a plurality of connecting grooves (52) formed on the inner wall of the circumferential side of the receiving annular groove (51) and extending in the vertical direction, a support arm (53) with its upper end hinged inside the upper end of the connecting groove (52), an annular soft film (54) arranged between the plurality of support arms (53), a reset elastic piece (55) with one end connected to the lower side of the support arm (53) and the other end embedded in the connecting groove (52), a driving sleeve (56) arranged on the lower side of the lifting disc (41) and sleeved on the column (32), and a groove (57) formed on the base (3) for the driving sleeve (56) to be embedded in.; 2. The transmission system of a bolt assembly according to claim 1, characterized in that: A connecting sleeve (421) sleeving the peripheral side of the movable column (44) is arranged on the inner wall of the cavity layer (42). A positioning ring (422) is arranged on the inner peripheral wall of the connecting sleeve (421). An annular groove (442) for the positioning ring (422) to be embedded is formed on the outer peripheral wall of the movable column (44).

3. The transmission system of a bolt assembly according to claim 1, characterized in that: The driving member (48) includes an internal gear ring (481) rotatably connected to the inner wall of the cavity layer (42), an external gear ring (482) fixed to the peripheral side of the upper end of the movable column (44) and meshing inside the internal gear ring (481), a driving motor (483) arranged on the upper surface of the lifting disc (41) and having an output shaft penetrating into the cavity layer (42), and a driving gear (484) fixed to the output shaft of the driving motor (483) and meshing inside the internal gear ring (481).

4. A transmission system for a bolt assembly according to claim 1, characterized in that: "C"-shaped handles (412) are arranged on both sides of the lifting disc (41). Four positioning columns (331) extending in the vertically upward direction and respectively embedded in the corners of the two handles (412) are arranged on the blanking plate (33).

5. The transmission system of a bolt assembly according to claim 1, characterized in that: A storage box (21) for storing hexagon bolts (101), washers (102) and hexagon nuts (103) is arranged on one side of the assembly table (2). Two partition plates (211) for partitioning the storage box (21) into three cavities are arranged inside the storage box (21).

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