Assembling device for screw type expansion anchor bolt

Abstract

The invention discloses an assembling device for a screw type expansion anchor bolt. The assembling device comprises a fixed table, a rotating table is arranged above the fixed table, a rotating shaft is installed at the lower end of the rotating table, a limiting mechanism is arranged on the rotating table, and an assembling mechanism is arranged on the fixed table; the limiting mechanism comprises a limiting groove, a U-shaped supporting block, a flat gasket groove, a limiting frame, a rotating rod, a nut groove, an inlet and outlet, a second rolling bearing and an L-shaped rod. The assembling mechanism comprises a first feeding channel, a second feeding channel, a first mechanical gripper, a second mechanical gripper and a driving frame. The screw clamping device has the beneficial effects that the flat gasket, the nut, the expansion ring and the screw can be sequentially placed at designated positions through various mechanical devices, then threads on the screw can be clamped through the limiting frame, and different from existing flat plate clamping, the screw is clamped through the internal threads on the limiting frame, so that the contact area is larger, and the clamping efficiency is improved. Therefore, the screw can be prevented from being damaged, and product quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of anchor bolt processing equipment, and more particularly to an assembling device for screw-type expansion anchor bolts. Background Art

[0002] The expansion anchor utilizes the relative movement of the cone and the expansion ring to cause the expansion ring to expand, generate expansion extrusion pressure with the hole wall concrete, and generate pull-out force through shear friction to achieve anchoring of the connected parts. The expansion anchor mainly consists of a screw, an expansion ring, a flat washer, and a nut. After the various parts of the expansion anchor are processed, it needs to be assembled.

[0003] In the prior art, there are various devices for assembling anchor bolts, but most of them have a problem. Since the upper end of the screw used for the expansion anchor bolt is conical, unlike the hexagonal screw of the conventional screw, it is not convenient to limit the screw. Generally, the screw is clamped by two clamps, but when the nut is screwed, if the resistance is too large, the thread of the screw will be damaged, thereby affecting the product quality.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems and to design an assembly device for screw-type expansion anchor bolts.

[0006] The technical solution of the present invention to achieve the above-mentioned purpose is an assembly device for a screw-type expansion anchor bolt, comprising a fixed platform, a rotating platform is provided above the fixed platform, a rotating shaft is installed at the lower end of the rotating platform, a first rolling bearing is installed at the lower end of the rotating shaft, the first rolling bearing is installed on the upper surface of the fixed platform, a limiting mechanism is provided on the rotating platform, and an assembly mechanism is provided on the fixed platform; The limiting mechanism includes six limiting grooves on the rotating table, a U-shaped support block is installed on one side of the lower end of the limiting groove, a flat pad groove is provided below the U-shaped support block and is opened on the inner side of the limiting groove, a limiting frame installed on the lower surface of the rotating table is provided below the limiting groove, an internal thread matching the external thread of the screw rod is provided on the limiting frame, a rotating rod is provided below the limiting frame, a nut groove is provided on the upper end of the rotating rod, an inlet and outlet are provided on one side of the nut groove, a second rolling bearing is installed on the lower end of the rotating rod, and the second rolling bearing is installed on the rotating table through an L-shaped rod. The assembly mechanism includes a first feed channel located above the fixed platform, the first feed channel can move the gasket into the flat gasket groove, a second feed channel is provided below the first feed channel, the second feed channel can move the nut into the nut groove, a first mechanical gripper is installed on the fixed platform, the first mechanical gripper can move the expansion ring above the U-shaped support block, a second mechanical gripper is installed on the fixed platform, the second mechanical gripper can grab the screw and make the lower end of the screw pass through the expansion ring and the gasket extend to the upper end of the nut, a driving frame is installed on the fixed platform, the driving frame can drive the rotating platform to rotate, and the driving frame can drive the rotating rod to rotate.

[0007] Furthermore, the driving frame includes a servo motor installed on the upper surface of the fixed platform, a first one-way bearing is installed at the rotating end of the servo motor, a first bevel gear is installed on the outer side of the first one-way bearing, a self-locking reducer installed on the fixed platform is provided on one side of the servo motor, a second bevel gear is installed at the power input end of the self-locking reducer, the first bevel gear and the second bevel gear are meshed, a first gear is installed at the power output end of the self-locking reducer, a second gear is installed on the rotating shaft, the first gear and the second gear are meshed, a second one-way bearing is installed at the rotating end of the servo motor, a third gear is installed on the outer side of the second one-way bearing, a fourth gear is installed at the lower end of the rotating rod, and the fourth gear can be meshed with the third gear.

[0008] Furthermore, a circular hole is opened at the lower end of the rotating rod, the circular hole is connected to the nut groove, a lifting block is arranged in the circular hole, a circular ring plate installed in the circular hole is arranged below the lifting block, a first spring ejector is installed on the lower surface of the lifting block, a first pushing wheel is installed at the lower end of the first spring ejector, a first supporting platform is installed on one side of the upper end of the fixed platform, an inclined surface is arranged on the front side of the first supporting platform, and the first pushing wheel can contact the upper end of the first supporting platform.

[0009] Furthermore, a fixing plate is installed on one side of the second rolling bearing, a second spring ejector is installed on the lower end of the fixing plate, a universal ball is installed on the lower end of the second spring ejector, a limiting hole is opened on the fourth gear, and the universal ball can enter the limiting hole, a lifting rod is installed on the telescopic end of the second spring ejector, a second pushing wheel is installed on one side of the lower end of the lifting rod, a second supporting platform is installed on one side of the upper end of the fixing platform, an inclined surface is provided on the front side of the second supporting platform, the second pushing wheel can contact with the upper end of the second supporting platform, and an arc-shaped friction block is installed on one side of the upper surface of the fixing platform, and the upper end of the arc-shaped friction block can contact with the lower surface of the fourth gear.

[0010] Furthermore, the limit frame includes an L-shaped support plate located on both sides below the limit groove, the upper end of the L-shaped support plate is installed on the lower surface of the rotating table, a limit block is provided above the L-shaped support plate, a semicircular groove is opened on the inner side of the limit block, an internal thread is arranged on the inner side of the semicircular groove, the internal thread can be matched with the external thread of the screw, a third spring ejector is installed on one side of the limit block, the fixed end of the third spring ejector is installed on the L-shaped support plate, intercepting rods are installed on both sides of the telescopic end of the third spring ejector, a first pulley is installed on one side of the intercepting rod, a first trapezoidal platform is provided on one side of the first pulley, a square opening is opened on the L-shaped support plate, and the lower end of the first trapezoidal platform passes through the square opening and extends to the L-shaped support plate Below, an intercepting plate is installed on the first trapezoidal platform, and the intercepting plate is located above the L-shaped supporting plate. A second pulley is installed at the lower end of the first trapezoidal platform, and a second trapezoidal platform is provided on one side of the second pulley. The two second trapezoidal platforms are connected by a connecting rod. A guide hole is opened on the second trapezoidal platform, and a guide rod is provided in the guide hole. Both ends of the guide rod are installed on the L-shaped supporting plate through fixed rods. A second trapezoidal platform is connected to a fixed rod through a telescopic spring, and a third pulley is installed on one side of the lower end of a second trapezoidal platform. An arc-shaped platform is provided above the fixed platform, and an inclined surface is provided at the front end of the arc-shaped platform. The third pulley can contact the arc-shaped platform, and the arc-shaped platform is installed on the fixed platform through multiple support rods.

[0011] Furthermore, a first arc-shaped limit plate is provided on the outer side of the rotating table, the first arc-shaped limit plate is located on one side of the limit groove, a second arc-shaped limit plate is provided below the first arc-shaped limit plate, the second arc-shaped limit plate is located on one side of the flat pad groove, a third arc-shaped limit plate is provided below the second arc-shaped limit plate, the third arc-shaped limit plate is located on one side of the nut groove, and the first arc-shaped limit plate, the second arc-shaped limit plate and the third arc-shaped limit plate are installed on the fixed table through multiple support shafts.

[0012] Furthermore, an arc-shaped rotating plate is provided on one side of the rotating rod, the arc-shaped rotating plate is located between the rotating rods, and the arc-shaped rotating plate is installed on the L-shaped rod through a connecting shaft.

[0013] Furthermore, a plurality of supporting wheels are installed on the upper end of the fixed platform, and the supporting wheels can support the rotating platform.

[0014] The beneficial effects of the present invention are as follows: the flat washer, nut, expansion ring and screw can be placed at the designated position in sequence through various mechanical equipment, and then the thread on the screw can be clamped by the limit frame. Different from the existing flat plate clamping, the screw is clamped by the internal thread on the limit frame, which has a larger contact area, thereby preventing the screw from being damaged and ensuring the product quality. When screwing the nut, the screw rod can be clamped by the limit frame to prevent the screw rod from moving up and down and rotating. Then, the nut can be pushed upward by the lifting block to give a certain pressure to the nut and the screw rod. Then, the nut can be driven to rotate by the rotating rod, which can facilitate screwing the nut onto the screw rod. The limiting frame is composed of two movable limiting blocks. When limiting the screw, the two limiting blocks are brought close to each other, so that the screw can be clamped easily. When not clamped, the two limiting blocks can be separated to facilitate unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an assembly device for a screw-type expansion anchor bolt according to the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 yes Figure 1 A partial enlarged view of point B in the middle; Figure 4 It is a partial cross-sectional schematic diagram of an assembly device for a screw-type expansion anchor bolt according to the present invention, viewed from the side; Figure 5 yes Figure 4 A partial enlarged view of point C in the middle; Figure 6 yes Figure 4 A partial enlarged view of point D in the middle; Figure 7 yes Figure 4 A partial enlarged view of point E in the middle; Figure 8 yes Figure 4 A partial enlarged view of point F in the middle; Fig. 9 yes Figure 4 A partial enlarged view of the G in the middle; Fig.10 It is a partial cross-sectional schematic diagram of the limiting frame of the present invention; In the figure, 1, fixed table; 2, rotating table; 3, rotating shaft; 4, first rolling bearing; 5, limiting groove; 6, U-shaped support block; 7, flat washer groove; 8, limiting frame; 9, rotating rod; 10, nut groove; 11, inlet and outlet; 12, second rolling bearing; 13, L-shaped rod; 14, first feeding channel; 15, second feeding channel; 16, first mechanical gripper; 17, second mechanical gripper; 18, driving frame; 19, servo motor; 20, first one-way bearing; 21, first bevel gear; 22, self-locking reducer; 23, second bevel gear; 24, first gear; 25, second gear; 26, second one-way bearing; 27, third gear; 28, fourth gear; 29, round hole; 30, lifting block; 31, circular ring plate; 32, first spring ejector; 33, first push wheel; 34, first support table; 35. Fixed plate; 36. Second spring ejector; 37. Universal ball; 38. Limiting hole; 39. Lifting rod; 40. Second driving wheel; 41. Second supporting platform; 42. Arc friction block; 43. L-shaped supporting plate; 44. Limiting block; 45. Semicircular groove; 46. Third spring ejector; 47. Intercepting rod; 48. First pulley; 49. First trapezoidal platform; 50. Square opening; 51. Intercepting plate; 52. Second pulley; 53. Second trapezoidal platform; 54. Connecting rod; 55. Guide hole; 56. Guide rod; 57. Fixed rod; 58. Telescopic spring; 59. Third pulley; 60. Arc platform; 61. Support rod; 62. First arc limiting plate; 63. Second arc limiting plate; 64. Third arc limiting plate; 65. Support shaft; 66. Arc rotating plate; 67. Connecting shaft; 68. Support wheel. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0018] The present invention provides Figure 1-10 The assembly device for screw-type expansion anchor shown in the figure comprises a fixed platform 1, a rotating platform 2 is arranged above the fixed platform 1, a rotating shaft 3 is installed at the lower end of the rotating platform 2, a first rolling bearing 4 is installed at the lower end of the rotating shaft 3, the first rolling bearing 4 is installed on the upper surface of the fixed platform 1, a limiting mechanism is arranged on the rotating platform 2, and an assembly mechanism is arranged on the fixed platform 1; the limiting mechanism comprises six limiting grooves 5 located on the rotating platform 2, a U-shaped support block 6 is installed on one side of the lower end of the limiting groove 5, a flat pad groove 7 opened on the inner side of the limiting groove 5 is arranged below the U-shaped support block 6, a limiting frame 8 installed on the lower surface of the rotating platform 2 is arranged below the limiting groove 5, the limiting frame 8 is provided with an internal thread matching the external thread of the screw, a rotating rod 9 is arranged below the limiting frame 8, a nut groove 10 is opened at the upper end of the rotating rod 9, and an inlet and outlet 11 is opened on one side of the nut groove 10, and the rotating rod 9 is provided with a nut groove 10. A second rolling bearing 12 is installed at the lower end of the rod 9, and the second rolling bearing 12 is installed on the rotating table 2 through an L-shaped rod 13. The assembly mechanism includes a first feed channel 14 located above the fixed table 1, and the first feed channel 14 can move the washer into the flat washer groove 7. A second feed channel 15 is provided below the first feed channel 14, and the second feed channel 15 can move the nut into the nut groove 10. A first mechanical gripper 16 is installed on the fixed table 1, and the first mechanical gripper 16 can move the expansion ring above the U-shaped support block 6. A second mechanical gripper 17 is installed on the fixed table 1, and the second mechanical gripper 17 can grab the screw and make the lower end of the screw pass through the expansion ring and the washer to extend to the upper end of the nut. A driving frame 18 is installed on the fixed table 1, and the driving frame 18 can drive the rotating table 2 to rotate, and the driving frame 18 can drive the rotating rod 9 to rotate; The process of assembling anchor bolts by this device is as follows: six limiting grooves 5 are provided on the rotating table 2, and six processing stations can be provided on the fixed table 1. The rotating table 2 can be driven to rotate by the driving frame 18. When the flat gasket groove 7 on the rotating table 2 rotates to the side of the first feed channel 14, this is the first processing station. The flat gasket can be moved into the flat gasket groove 7 through the first feed channel 14. The rotating table 2 can also drive the rotating rod 9 to rotate to the side of the second feed channel 15 through the L-shaped rod 13 and the second rolling bearing 12. Then, under the action of the second feed channel 15, the nut can enter the nut groove 10. Then, the rotating table 2 is driven to rotate by the driving frame 18, and the limiting groove 5 containing the flat gasket is rotated to the side of the first mechanical gripper 16. This is the second processing station. The expansion ring can be placed in the limiting groove 5 through the first mechanical gripper 16, and the lower end of the expansion ring is placed on the U-shaped support block 6. Then, the rotating table 2 is driven to rotate by the driving frame 18, and the limiting groove 5 containing the expansion ring is rotated to the side of the first mechanical gripper 16. Rotate to the side of the second mechanical gripper 17, which is the third processing station. The lower end of the screw can be extended to the top of the nut through the expansion ring and the flat washer through the second mechanical gripper 17. The rotating table 2 is driven to rotate by the driving frame 18, and the limiting groove 5 containing the screw is rotated to the fourth processing station. The lower end of the screw is clamped by the limiting frame 8, and then the rotating rod 9 is driven to rotate by the driving frame 18. The rotating rod 9 can drive the nut to rotate through the nut groove 10, which can facilitate the nut to be screwed onto the screw. The rotating table 2 is driven to rotate by the driving frame 18, and the limiting groove 5 containing the screw is rotated to the fifth processing station. In this process, the limiting frame 8 can loosen the screw, and the rotating table 2 is driven to rotate by the driving frame 18, and the limiting groove 5 containing the screw is rotated to the sixth processing station. In this process, the nut can be unloaded. After unloading, the driving frame 18 can rotate the limiting groove 5 to the first processing station, and then repeat the above process to assemble the anchor bolt.

[0019] Refer to the instruction manual Figure 1 , Instruction Manual Figure 3 , Instruction Manual Figure 4 And the instruction manual Fig. 9The driving frame 18 includes a servo motor 19 installed on the upper surface of the fixed platform 1, a first one-way bearing 20 is installed on the rotating end of the servo motor 19, a first bevel gear 21 is installed on the outer side of the first one-way bearing 20, a self-locking reducer 22 installed on the fixed platform 1 is provided on one side of the servo motor 19, a second bevel gear 23 is installed on the power input end of the self-locking reducer 22, the first bevel gear 21 and the second bevel gear 23 are meshed, a first gear 24 is installed on the power output end of the self-locking reducer 22, a second gear 25 is installed on the rotating shaft 3, the first gear 24 and the second gear 25 are meshed, a second one-way bearing 26 is installed on the rotating end of the servo motor 19, a third gear 27 is installed on the outer side of the second one-way bearing 26, a fourth gear 28 is installed on the lower end of the rotating rod 9, and the fourth gear 28 can be meshed with the third gear 27; The process of the driving frame 18 driving the rotating table 2 and the rotating rod 9 to rotate is as follows: the servo motor 19 is started to rotate forward, and the rotating end of the servo motor 19 can rotate in the second one-way bearing 26, and will not drive the second one-way bearing 26 and the third gear 27 to rotate. The servo motor 19 can drive the first one-way bearing 20 and the first bevel gear 21 to rotate, and the first bevel gear 21 and the second bevel gear 23 are meshed, and then the second bevel gear 23 and the power input end of the self-locking reducer 22 can be driven to rotate. After being decelerated by the self-locking reducer 22, the first gear 24 can be driven. Rotate, the first gear 24 and the second gear 25 are meshed, which can drive the second gear 25 and the rotating shaft 3 to rotate the rotating table 2, start the servo motor 19 to reverse, the rotating end of the servo motor 19 can rotate in the first one-way bearing 20, and will not drive the first one-way bearing 20 and the first bevel gear 21 to rotate, the self-locking reducer 22 can prevent the rotating table 2 from rotating at will, the servo motor 19 can drive the second one-way bearing 26 and the third gear 27 to rotate, the third gear 27 and the fourth gear 28 are meshed, and can drive the fourth gear 28 and the rotating rod 9 to rotate.

[0020] Refer to the instruction manual Figure 1 , Instruction Manual Figure 3 , Instruction Manual Figure 4 And the instruction manual Figure 6A circular hole 29 is opened at the lower end of the rotating rod 9, and the circular hole 29 is connected to the nut groove 10. A lifting block 30 is arranged in the circular hole 29, and a circular ring plate 31 installed in the circular hole 29 is arranged below the lifting block 30. A first spring ejector pin 32 is installed on the lower surface of the lifting block 30, and a first pushing wheel 33 is installed at the lower end of the first spring ejector pin 32. A first supporting platform 34 is installed on one side of the upper end of the fixed platform 1, and an inclined surface is arranged on the front side of the first supporting platform 34, and the first pushing wheel 33 can contact the upper end of the first supporting platform 34. Under normal circumstances, under the action of gravity, the nut is placed at the lower end of the nut groove 10, and the lower end of the screw is placed on the nut. When the rotating table 2 rotates the two to the fourth processing station, the limit frame 8 can first clamp the lower end of the screw, and then the first pushing wheel 34 can be moved to the first supporting platform 34. Under the action of the inclined surface, the first pushing wheel 34 can be pushed upward and the first spring ejector pin 32 can be compressed. The first spring ejector pin 32 can push the lifting block 30 upward, and the lifting block 30 can push the nut upward, so that pressure can be generated between the nut and the two, which is convenient for screwing the nut on the screw. When the screwing is completed, the rotating table 2 continues to rotate the screw, so that the first pushing wheel 33 can be moved to the rear side of the first supporting platform 34, and then the lifting block 30, the first spring ejector pin 32, and the first pushing wheel 33 can be returned to their original positions under the action of gravity. The circular ring plate 31 supports the lifting block 30 to prevent it from falling.

[0021] Refer to the instruction manual Figure 1 , Instruction Manual Figure 3 , Instruction Manual Figure 4 , Instruction Manual Figure 6 And the instruction manual Figure 8A fixing plate 35 is installed on one side of the second rolling bearing 12, a second spring ejector pin 36 is installed on the lower end of the fixing plate 35, a universal ball 37 is installed on the lower end of the second spring ejector pin 36, a limiting hole 38 is opened on the fourth gear 28, and the universal ball 37 can enter the limiting hole 38, a lifting rod 39 is installed on the telescopic end of the second spring ejector pin 36, and a second driving wheel 40 is installed on one side of the lower end of the lifting rod 39, a second supporting platform 41 is installed on one side of the upper end of the fixing platform 1, and an inclined surface is provided on the front side of the second supporting platform 41, and the second driving wheel 40 can be with the second supporting platform 41 The upper end of the fixed platform 1 is in contact with the upper end, and an arc-shaped friction block 42 is installed on one side of the upper surface of the fixed platform 1. The upper end of the arc-shaped friction block 42 can contact the lower surface of the fourth gear 28. Under normal conditions, the universal ball 37 is located in the limit hole 38, and the fourth gear 28 and the rotating rod 9 can be positioned, so that the inlet and outlet 11 can be located on the outside, which is convenient for loading. When the rotating platform 2 moves the rotating rod 9 to the fourth processing station, the second driving wheel 40 can contact the second supporting platform 41, and under the action of the inclined surface of the second supporting platform 41, the second driving wheel 40 and the lifting rod 38 are pushed upward , and then the second spring ejector pin 36 can be compressed, and the second spring ejector pin 36 can pull the universal ball 37 upward, and the universal ball 37 can be lifted from the limiting hole 38, so that the fourth gear 28 can be rotated. When the rotating table 2 rotates the rotating rod 9 toward the fifth processing station, the second pushing wheel 40 can be moved to the rear side of the second supporting table 41, and then the lifting rod 38 and the second spring ejector pin 36 can be moved downward. If the universal ball 37 is located on the limiting hole 38 at this time, the universal ball 37 will fall into the limiting hole 38, and the fourth gear 28 can be rotated. The wheel 28 and the rotating rod 9 are positioned, and the inlet and outlet 11 are located on the outside. If the universal ball 37 is not located on the limiting hole 38 at this time, the universal ball 37 will fall on the upper end of the fourth gear 28. When the fourth gear 28 moves to the arc-shaped friction block 42, the fourth gear 28 can be rotated under the action of friction. When the limiting hole 38 rotates to the bottom of the universal ball 37, the universal ball 37 can enter the limiting hole 38 under the elastic force of the second spring ejector pin 36, and then the fourth gear 28 and the rotating rod 9 can be positioned.

[0022] Refer to the instruction manual Figure 1 , Instruction Manual Figure 2 , Instruction Manual Figure 3 , Instruction Manual Figure 4 , Instruction Manual Figure 5 , Instruction Manual Figure 7 And the instruction manual Fig.10The limiting frame 8 includes an L-shaped support plate 43 located on both sides below the limiting groove 5, the upper end of the L-shaped support plate 43 is mounted on the lower surface of the rotating table 2, a limiting block 44 is arranged above the L-shaped support plate 43, a semicircular groove 45 is opened inside the limiting block 44, an internal thread is arranged inside the semicircular groove 45, and the internal thread can fit with the external thread of the screw, a third spring ejector pin 46 is installed on one side of the limiting block 44, and the fixed end of the third spring ejector pin 46 is installed on the L-shaped support plate 43, and intercepting rods 47 are installed on both sides of the telescopic end of the third spring ejector pin 46, a first pulley 48 is installed on one side of the intercepting rod 47, and a first trapezoidal platform 49 is arranged on one side of the first pulley 48, a square opening 50 is opened on the L-shaped support plate 43, and the lower end of the first trapezoidal platform 49 passes through the square opening 50 and extends to the bottom of the L-shaped support plate 43, and the first trapezoidal platform 4 9 is provided with an intercepting plate 51, which is located above the L-shaped support plate 43, a second pulley 52 is provided at the lower end of the first trapezoidal platform 49, a second trapezoidal platform 53 is provided on one side of the second pulley 52, two second trapezoidal platforms 53 are connected by a connecting rod 54, a guide hole 55 is provided on the second trapezoidal platform 53, a guide rod 56 is provided in the guide hole 55, both ends of the guide rod 56 are installed on the L-shaped support plate 43 through a fixing rod 57, a second trapezoidal platform 53 is connected to a fixing rod 57 through a telescopic spring 58, a third pulley 59 is provided on one side of the lower end of a second trapezoidal platform 53, an arc platform 60 is provided above the fixed platform 1, an inclined surface is provided at the front end of the arc platform 60, the third pulley 59 can contact the arc platform 60, and the arc platform 60 is installed on the fixed platform 1 through a plurality of support rods 61; The process of the limit frame 8 clamping the screw is as follows: under normal conditions, the two limit blocks 44 are in a separated state. When the screw is placed on the nut, the rotating table 2 drives the screw to move from the third processing station to the fourth processing station, so that the third pulley 59 can contact the arc table 60. Then, under the action of the inclined surface of the arc table 60, the third pulley 59 can be pushed to one side, and the second trapezoidal table 53 can be moved to one side. The two second trapezoidal tables 53 are connected by the connecting rod 54, so that the two second trapezoidal tables 53 can move synchronously. The guide rod 56 and the guide hole 55 can ensure the moving direction of the second trapezoidal table 53. When the platform 53 moves, the telescopic spring 58 can be stretched. Under the action of the inclined surface of the second trapezoidal platform 53, the second pulley 52 can be pushed upward, and the first trapezoidal platform 49 can be moved upward. The square opening 50 can ensure the moving direction of the first trapezoidal platform 49. When the first trapezoidal platform 49 moves upward, the first pulley 48, the intercepting rod 47, and the limit block 44 can be pushed to one side, so that the third spring ejector pin 46 can be stretched. The two limit blocks 44 can be combined, and the screw rod can be clamped by the internal threads on the two limit blocks 44. If the threads do not correspond at this time, the threads can be temporarily squeezed. When the nut rotates, if The friction between the nut and the screw is small, and the nut can be screwed onto the screw smoothly. If the friction between the nut and the screw is large, the screw can be driven to rotate. When the external thread on the screw fits with the internal thread on the inner side of the limit block 44, the external thread on the screw can be clamped. When the screw rotates with the nut, the screw will move downward under the threaded connection between the screw and the internal thread of the limit block 44, but the expansion ring can limit the screw, so that the screw cannot move downward. The screw can neither move downward nor rotate, so the nut can rotate and move upward. When the resistance between the nut and the screw is too large When the nut is screwed, the servo motor 19 may be overloaded and slip, thereby preventing the screw from being damaged. When the nut is screwed, the screw is moved to the fifth processing station through the rotating table 2, and the third pulley 59 is moved to the rear side of the arc table 60. Then, the second trapezoidal table 53 may be pushed back to its original position under the elastic force of the telescopic spring 58. Under the action of gravity, the first trapezoidal table 49 may be returned to its original position, and the intercepting plate 51 may fall on the square opening 50 to prevent the first trapezoidal table 49 from falling. Under the pulling force of the third spring ejector pin 46, the limit block 44 may be pulled back to its original position, thereby avoiding the screw and facilitating material unloading.

[0023] Refer to the instruction manual Figure 1 , Instruction Manual Figure 4 And the instruction manual Figure 7 The first arc-shaped limiting plate 62 , the second arc-shaped limiting plate 63 , and the third arc-shaped limiting plate 64 can prevent the expansion ring, the flat washer, and the nut from falling off when the rotating table 2 rotates.

[0024] Refer to the instruction manual Figure 1And the instruction manual Figure 2 An arc-shaped rotating plate 66 is provided on one side of the rotating rod 9. The arc-shaped rotating plate 66 is located between the rotating rods 9. The arc-shaped rotating plate 66 is installed on the L-shaped rod 13 through a connecting shaft 67. When the rotating rod 9 rotates to the side of the second feed channel 15, the arc-shaped rotating plate 66 can block the second feed channel 15 to prevent the nut from falling.

[0025] Refer to the instruction manual Figure 1 And the instruction manual Figure 4 A plurality of supporting wheels 68 are installed on the upper end of the fixed platform 1, and the supporting wheels 68 can support the rotating platform 2 and reduce the friction force when the rotating platform 2 rotates.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembly device for a screw-type expansion anchor, comprising a fixed platform (1), a rotating platform (2) is arranged above the fixed platform (1), a rotating shaft (3) is installed at the lower end of the rotating platform (2), a first rolling bearing (4) is installed at the lower end of the rotating shaft (3), and the first rolling bearing (4) is installed on the upper surface of the fixed platform (1), characterized in that: The rotating platform (2) is provided with a limiting mechanism, and the fixed platform (1) is provided with an assembly mechanism; The limiting mechanism comprises six limiting grooves (5) on the rotating table (2), a U-shaped support block (6) is installed on one side of the lower end of the limiting groove (5), a flat pad groove (7) opened on the inner side of the limiting groove (5) is provided below the U-shaped support block (6), a limiting frame (8) installed on the lower surface of the rotating table (2) is provided below the limiting groove (5), the limiting frame (8) is provided with an internal thread matching the external thread of the screw rod, a rotating rod (9) is provided below the limiting frame (8), a nut groove (10) is opened at the upper end of the rotating rod (9), an inlet and outlet (11) is opened on one side of the nut groove (10), a second rolling bearing (12) is installed at the lower end of the rotating rod (9), and the second rolling bearing (12) is installed on the rotating table (2) through an L-shaped rod (13), The assembly mechanism comprises a first feed channel (14) located above the fixed platform (1), the first feed channel (14) being capable of moving a washer into a flat washer groove (7), a second feed channel (15) being disposed below the first feed channel (14), the second feed channel (15) being capable of moving a nut into a nut groove (10), a first mechanical gripper (16) being mounted on the fixed platform (1), the first mechanical gripper (16) being capable of moving an expansion ring above the U-shaped support block (6), a second mechanical gripper (17) being mounted on the fixed platform (1), the second mechanical gripper (17) being capable of grabbing a screw rod and allowing the lower end of the screw rod to pass through the expansion ring and the washer to extend to the upper end of the nut, and a driving frame (18) being mounted on the fixed platform (1), the driving frame (18) being capable of driving the rotating platform (2) to rotate, and the driving frame (18) being capable of driving the rotating rod (9) to rotate.

2. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that: The driving frame (18) comprises a servo motor (19) mounted on the upper surface of a fixed platform (1); a first one-way bearing (20) is mounted on the rotating end of the servo motor (19); a first bevel gear (21) is mounted on the outer side of the first one-way bearing (20); a self-locking reducer (22) mounted on the fixed platform (1) is provided on one side of the servo motor (19); a second bevel gear (23) is mounted on the power input end of the self-locking reducer (22); the first bevel gear (21) and the second bevel gear (23) are meshed; a first gear (24) is mounted on the power output end of the self-locking reducer (22); a second gear (25) is mounted on the rotating shaft (3); the first gear (24) and the second gear (25) are meshed; a second one-way bearing (26) is mounted on the rotating end of the servo motor (19); a third gear (27) is mounted on the outer side of the second one-way bearing (26); a fourth gear (28) is mounted on the lower end of the rotating rod (9); the fourth gear (28) can mesh with the third gear (27).

3. An assembly device for a screw-type expansion anchor according to claim 2, characterized in that: A circular hole (29) is formed at the lower end of the rotating rod (9), the circular hole (29) being communicated with the nut groove (10), a lifting block (30) being provided in the circular hole (29), a circular ring plate (31) being installed in the circular hole (29) being provided below the lifting block (30), a first spring ejector pin (32) being installed on the lower surface of the lifting block (30), a first driving wheel (33) being installed at the lower end of the first spring ejector pin (32), a first supporting platform (34) being installed at one side of the upper end of the fixing platform (1), an inclined surface being provided at the front side of the first supporting platform (34), and the first driving wheel (33) being able to contact the upper end of the first supporting platform (34).

4. An assembly device for a screw-type expansion anchor according to claim 3, characterized in that: A fixing plate (35) is installed on one side of the second rolling bearing (12), a second spring ejector pin (36) is installed at the lower end of the fixing plate (35), a universal ball (37) is installed at the lower end of the second spring ejector pin (36), a limiting hole (38) is opened on the fourth gear (28), and the universal ball (37) can enter the limiting hole (38), a lifting rod (39) is installed on the telescopic end of the second spring ejector pin (36), and a second driving wheel (40) is installed on one side of the lower end of the lifting rod (39), a second supporting platform (41) is installed on one side of the upper end of the fixing platform (1), and an inclined surface is provided on the front side of the second supporting platform (41), and the second driving wheel (40) can contact the upper end of the second supporting platform (41), and an arc-shaped friction block (42) is installed on one side of the upper surface of the fixing platform (1), and the upper end of the arc-shaped friction block (42) can contact the lower surface of the fourth gear (28).

5. The assembly device for a screw-type expansion anchor according to claim 1, characterized in that: The limiting frame (8) comprises an L-shaped support plate (43) located on both sides below the limiting groove (5), the upper end of the L-shaped support plate (43) is mounted on the lower surface of the rotating table (2), a limiting block (44) is arranged above the L-shaped support plate (43), a semicircular groove (45) is opened on the inner side of the limiting block (44), an internal thread is arranged on the inner side of the semicircular groove (45), and the internal thread can be matched with the external thread of the screw rod, and a third spring ejector pin (46) is installed on one side of the limiting block (44), and the third spring ejector pin The fixed end of the third spring ejector pin (46) is mounted on the L-shaped support plate (43), interception rods (47) are mounted on both sides of the telescopic end of the third spring ejector pin (46), a first pulley (48) is mounted on one side of the interception rod (47), a first trapezoidal platform (49) is provided on one side of the first pulley (48), a square opening (50) is opened on the L-shaped support plate (43), the lower end of the first trapezoidal platform (49) passes through the square opening (50) and extends to the bottom of the L-shaped support plate (43), and the first trapezoidal platform (49) is provided on the first trapezoidal platform (49). An interception plate (51) is installed, and the interception plate (51) is located above the L-shaped support plate (43). A second pulley (52) is installed at the lower end of the first trapezoidal platform (49). A second trapezoidal platform (53) is provided on one side of the second pulley (52). The two second trapezoidal platforms (53) are connected by a connecting rod (54). A guide hole (55) is opened on the second trapezoidal platform (53). A guide rod (56) is provided in the guide hole (55). Both ends of the guide rod (56) are connected by fixing rods (57). The fixed platform (1) is mounted on an L-shaped support plate (43), a second trapezoidal platform (53) is connected to a fixed rod (57) via a telescopic spring (58), a third pulley (59) is mounted on one side of the lower end of the second trapezoidal platform (53), an arc-shaped platform (60) is arranged above the fixed platform (1), an inclined surface is arranged at the front end of the arc-shaped platform (60), the third pulley (59) can contact the arc-shaped platform (60), and the arc-shaped platform (60) is mounted on the fixed platform (1) via a plurality of support rods (61).

6. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that: A first arc-shaped limit plate (62) is provided on the outside of the rotating platform (2), the first arc-shaped limit plate (62) is located on one side of the limit groove (5), a second arc-shaped limit plate (63) is provided below the first arc-shaped limit plate (62), the second arc-shaped limit plate (63) is located on one side of the flat washer groove (7), a third arc-shaped limit plate (64) is provided below the second arc-shaped limit plate (63), the third arc-shaped limit plate (64) is located on one side of the nut groove (10), and the first arc-shaped limit plate (62), the second arc-shaped limit plate (63), and the third arc-shaped limit plate (64) are mounted on the fixed platform (1) via a plurality of support shafts (65).

7. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that: An arc-shaped rotating plate (66) is provided on one side of the rotating rod (9). The arc-shaped rotating plate (66) is located between the rotating rods (9). The arc-shaped rotating plate (66) is mounted on the L-shaped rod (13) via a connecting shaft (67).

8. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that: A plurality of supporting wheels (68) are mounted on the upper end of the fixed platform (1), and the supporting wheels (68) can support the rotating platform (2).

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