An assembly device for a screw expansion anchor

Abstract

The application discloses an assembling device for screw expansion anchor bolts, which comprises a fixed table, a rotating table arranged above the fixed table, a rotating shaft installed at the lower end of the rotating table, a limiting mechanism arranged on the rotating table, and an assembling mechanism arranged on the fixed table. The limiting mechanism comprises a limiting groove, a U-shaped supporting block, a flat pad groove, a limiting frame, a rotating rod, a nut groove, an inlet and an 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 application has the beneficial effect that the flat pad, the nut, the expansion ring and the screw rod can be sequentially placed in the designated positions by various mechanical devices, then the screw thread on the screw rod can be clamped by the limiting frame, and the screw rod is clamped by the internal thread on the limiting frame instead of the flat plate, so that the contact area is larger, the screw rod can be prevented from being damaged, and the product quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of anchor bolt processing equipment technology, and more specifically, to an assembly device for screw-type expansion anchor bolts. Background Technology

[0002] Expansion anchors are components that use the relative movement of a cone and an expansion ring to cause the expansion ring to expand, generating expansion pressure against the concrete of the hole wall, and generating pull-out resistance through shear friction to anchor the connected parts. Expansion anchors mainly consist of a screw, an expansion ring, a flat washer, and a nut. After all parts of the expansion anchor are processed, they need to be assembled.

[0003] In the existing technology, there are various types of equipment for assembling anchor bolts, but most of them have a problem: because the upper end of the screw used for expansion anchor bolts is conical, unlike the hexagonal screw of conventional screws, it is inconvenient to limit the screw. Generally, the screw is clamped by two clamping plates, but if the resistance is too great when tightening the nut, it will damage the thread of the screw, thus affecting the product quality.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by designing an assembly device for screw-type expansion anchors.

[0006] The technical solution of the present invention to achieve the above objectives is as follows: an assembly device for screw-type expansion anchors, including a fixed platform, a rotating platform above the fixed platform, a rotating shaft installed at the lower end of the rotating platform, a first rolling bearing installed at the lower end of the rotating shaft, the first rolling bearing installed on the upper surface of the fixed platform, a limiting mechanism provided on the rotating platform, and an assembly mechanism provided on the fixed platform. The limiting mechanism includes six limiting slots located on the rotating platform. A U-shaped support block is installed on one side of the lower end of each limiting slot. Below the U-shaped support block, a flat washer groove is provided inside the limiting slot. Below the limiting slot, a limiting frame is installed on the lower surface of the rotating platform. The limiting frame has an internal thread that matches the external thread of the screw. Below the limiting frame, a rotating rod is provided. The upper end of the rotating rod has a nut groove, and one side of the nut groove has an inlet and outlet. A second rolling bearing is installed at the lower end of the rotating rod. The second rolling bearing is mounted on the rotating platform via an L-shaped rod. The assembly mechanism includes a first feeding channel located above the fixed platform, which can move the washer into the flat washer groove. A second feeding channel is provided below the first feeding channel, which can move the nut into the nut groove. A first mechanical gripper is installed on the fixed platform, which can move the expansion ring above the U-shaped support block. A second mechanical gripper is installed on the fixed platform, which can grip the screw and make the lower end of the screw pass through the expansion ring and the washer to the upper end of the nut. A drive frame is installed on the fixed platform, which can drive the rotating platform to rotate and drive the rotating rod to rotate.

[0007] Furthermore, the drive frame includes a servo motor mounted on the upper surface of a fixed platform. A first one-way bearing is mounted on the rotating end of the servo motor, and a first bevel gear is mounted on the outer side of the first one-way bearing. A self-locking reducer mounted on the fixed platform is provided on one side of the servo motor. A second bevel gear is mounted on the power input end of the self-locking reducer, and the first and second bevel gears mesh. A first gear is mounted on the power output end of the self-locking reducer, and a second gear is mounted on the rotating shaft, with the first and second gears meshing. A second one-way bearing is mounted on the rotating end of the servo motor, and a third gear is mounted on the outer side of the second one-way bearing. A fourth gear is mounted on the lower end of the rotating rod, and the fourth gear can mesh with the third gear.

[0008] Furthermore, the lower end of the rotating rod has a circular hole that communicates with the nut groove. A lifting block is provided inside the circular hole, and a circular ring plate installed inside the circular hole is provided below the lifting block. A first spring pin is installed on the lower surface of the lifting block, and a first push wheel is installed at the lower end of the first spring pin. A first support platform is installed on one side of the upper end of the fixed platform, and an inclined surface is provided on the front side of the first support platform. The first push wheel can contact the upper end of the first support platform.

[0009] Furthermore, a fixing plate is installed on one side of the second rolling bearing, a second spring pin is installed at the lower end of the fixing plate, a universal ball is installed at the lower end of the second spring pin, a limit hole is opened on the fourth gear, the universal ball can enter the limit hole, a lifting rod is installed at the telescopic end of the second spring pin, a second push wheel is installed on one side of the lower end of the lifting rod, a second support 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 support platform, the second push wheel can contact the upper end of the second support platform, an arc-shaped friction block is installed on one side of the upper surface of the fixing platform, the upper end of the arc-shaped friction block can contact the lower surface of the fourth gear.

[0010] Furthermore, the limiting frame includes L-shaped support plates located on both sides below the limiting groove. The upper end of the L-shaped support plate is mounted on the lower surface of the rotating table. A limiting block is provided above the L-shaped support plate. A semi-circular groove is opened on the inner side of the limiting block, and an internal thread is provided inside the semi-circular groove. The internal thread can be matched with the external thread of the screw. A third spring pin is installed on one side of the limiting block. The fixed end of the third spring pin is mounted on the L-shaped support plate. Intercepting rods are installed on both sides of the telescopic end of the third spring pin. 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. The lower end of the first trapezoidal platform extends through the square opening to the L-shaped support plate. Below, an intercepting plate is installed on the first trapezoidal platform, which is located above the L-shaped support 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 installed in the guide hole. The two ends of the guide rod are installed on the L-shaped support plate by fixing rods. One second trapezoidal platform is connected to a fixing rod by a telescopic spring. A third pulley is installed on one side of the lower end of one second trapezoidal platform. An arc-shaped platform is provided above the fixed platform. The front end of the arc-shaped platform has an inclined surface. The third pulley can contact the arc-shaped platform. The arc-shaped platform is installed on the fixed platform by multiple support rods.

[0011] Furthermore, a first arc-shaped limiting plate is provided on the outer side of the rotating platform. The first arc-shaped limiting plate is located on one side of the limiting groove. A second arc-shaped limiting plate is provided below the first arc-shaped limiting plate. The second arc-shaped limiting plate is located on one side of the flat washer groove. A third arc-shaped limiting plate is provided below the second arc-shaped limiting plate. The third arc-shaped limiting plate is located on one side of the nut groove. The first arc-shaped limiting plate, the second arc-shaped limiting plate, and the third arc-shaped limiting plate are mounted on the fixed platform through multiple support shafts.

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

[0013] Furthermore, the upper end of the fixed platform is equipped with multiple support wheels, which can support the rotating platform.

[0014] The beneficial effects of this invention are as follows: a flat washer, nut, expansion ring and screw can be placed in a designated position in sequence by a variety of mechanical equipment, and then the thread on the screw can be clamped by a limiting frame. Unlike the existing flat plate clamping, the screw is clamped by the internal thread on the limiting frame, which has a larger contact area and can prevent the screw from being damaged, thus ensuring product quality. When tightening the nut, the screw rod can be clamped by the limit bracket to prevent it from moving up and down or rotating. Then, the nut can be pushed upward by the lifting block to apply pressure to the nut and the screw rod. Then, the nut can be rotated by the rotating rod to make it easier to tighten the nut onto the screw rod. The limiting frame consists of two movable limiting blocks. When limiting the screw, the two limiting blocks are brought close together to facilitate clamping the screw. When not clamping, the two limiting blocks can be separated to facilitate unloading. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly device for screw-type expansion anchors according to the present invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 yes Figure 1 A magnified view of a section at point B in the middle; Figure 4 This is a partial cross-sectional view of the assembly device for screw-type expansion anchors according to the present invention from the side view direction; Figure 5 yes Figure 4 A magnified view of a section at point C; Figure 6 yes Figure 4 A magnified view of a section at point D; Figure 7 yes Figure 4 A magnified view of a section at point E in the middle; Figure 8 yes Figure 4 A magnified view of a section at point F in the middle; Figure 9 yes Figure 4 A magnified view of a section at point G in the middle; Figure 10 This is a partial cross-sectional schematic diagram of the limiting frame described in this invention; In the diagram, 1. Fixed platform; 2. Rotating platform; 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 / 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. Drive 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. ​​Circular hole; 30. Lifting block; 31. Circular ring plate; 32. First spring pin; 33. First push wheel; 34. First support platform. 35. Fixed plate; 36. Second spring pin; 37. Universal ball bearing; 38. Limiting hole; 39. Lifting rod; 40. Second push wheel; 41. Second support platform; 42. Arc-shaped friction block; 43. L-shaped support plate; 44. Limiting block; 45. Semicircular groove; 46. Third spring pin; 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-shaped platform; 61. Support rod; 62. First arc-shaped limiting plate; 63. Second arc-shaped limiting plate; 64. Third arc-shaped limiting plate; 65. Support shaft; 66. Arc-shaped rotating plate; 67. Connecting shaft; 68. Support wheel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] This invention provides, for example Figure 1-10 The assembly device shown includes a fixed platform 1, a rotating platform 2 above the fixed platform 1, a rotating shaft 3 mounted on the lower end of the rotating platform 2, a first rolling bearing 4 mounted on the lower end of the rotating shaft 3, the first rolling bearing 4 mounted on the upper surface of the fixed platform 1, a limiting mechanism on the rotating platform 2, and an assembly mechanism on the fixed platform 1. The limiting mechanism includes six limiting grooves 5 located on the rotating platform 2, a U-shaped support block 6 mounted on one side of the lower end of each limiting groove 5, a flat washer groove 7 below the U-shaped support block 6 located inside the limiting groove 5, a limiting frame 8 mounted on the lower surface of the rotating platform 2 below the limiting groove 5, an internal thread on the limiting frame 8 that matches the external thread of the screw, a rotating rod 9 below the limiting frame 8, a nut groove 10 at the upper end of the rotating rod 9, and an inlet / outlet 11 on one side of the nut groove 10. A second rolling bearing 12 is installed at the lower end of rod 9. The second rolling bearing 12 is installed on the rotating table 2 via L-shaped rod 13. The assembly mechanism includes a first feeding channel 14 located above the fixed table 1. The first feeding channel 14 can move the washer into the flat washer groove 7. A second feeding channel 15 is provided below the first feeding channel 14. The second feeding channel 15 can move the nut into the nut groove 10. A first mechanical gripper 16 is installed on the fixed table 1. 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. The second mechanical gripper 17 can grip the screw and make the lower end of the screw pass through the expansion ring and the washer to the upper end of the nut. A drive frame 18 is installed on the fixed table 1. The drive frame 18 can drive the rotating table 2 to rotate. The drive frame 18 can drive the rotating rod 9 to rotate. The process of assembling anchor bolts using this device is as follows: The rotating table 2 has six limiting grooves 5, which in turn allow for six processing stations on the fixed table 1. The rotating table 2 can be rotated via the drive frame 18. When the flat pad groove 7 on the rotating table 2 rotates to the side of the first feeding channel 14, this is the first processing station. The flat pad can be moved into the flat pad groove 7 through the first feeding channel 14. The rotating table 2 can also drive the rotating rod 9 to rotate to the side of the second feeding channel 15 via the L-shaped rod 13 and the second rolling bearing 12. Then, under the action of the second feeding channel 15, the nut enters the nut groove 10. Then, the rotating table 2 is rotated via the drive frame 18, causing the limiting groove 5 containing the flat pad to rotate to the side of the first mechanical gripper 16, which is the second processing station. The expansion ring can be placed into the limiting groove 5 via 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 rotated via the drive frame 18, causing the limiting groove 5 containing the expansion ring to rotate to the side of the first mechanical gripper 16, which is the second processing station. Rotate to the side of the second mechanical gripper 17, which is the third processing station. The second mechanical gripper 17 can extend the lower end of the screw through the expansion ring and flat washer to the top of the nut. The drive frame 18 drives the rotating table 2 to rotate, and when the limiting groove 5 containing the screw rotates to the fourth processing station, the limiting frame 8 clamps the lower end of the screw. Then, the drive frame 18 drives the rotating rod 9 to rotate. The rotating rod 9 can drive the nut to rotate through the nut groove 10, which makes it easier to screw the nut onto the screw. The drive frame 18 drives the rotating table 2 to rotate, and the limiting groove 5 containing the screw rotates to the fifth processing station. During this process, the limiting frame 8 can release the screw. The drive frame 18 drives the rotating table 2 to rotate, and the limiting groove 5 containing the screw rotates to the sixth processing station. During this process, the nut can be unloaded. After unloading, the drive 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 appendix Figure 1 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Included with instruction manual Figure 9The drive frame 18 includes a servo motor 19 mounted on the upper surface of the 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 outside of the first one-way bearing 20. A self-locking reducer 22 is mounted on the fixed platform 1 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 mesh. 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 mesh. 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 outside 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. The process by which the drive frame 18 drives the rotating table 2 and the rotating rod 9 to rotate is as follows: The servo motor 19 is started to rotate forward. The rotating end of the servo motor 19 can rotate within the second one-way bearing 26, but 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. The first bevel gear 21 and the second bevel gear 23 mesh, which in turn drives the second bevel gear 23 and the power input end of the self-locking reducer 22 to rotate. After being reduced in speed by the self-locking reducer 22, it can drive the first gear 24. When the first gear 24 and the second gear 25 are engaged, the second gear 25 and the rotating shaft 3 and the rotating table 2 can be rotated. The servo motor 19 is started to reverse. The rotating end of the servo motor 19 can rotate within 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 arbitrarily. 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 engaged, which can drive the fourth gear 28 and the rotating rod 9 to rotate.

[0020] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Included with instruction manual Figure 6The lower end of the rotating rod 9 has a circular hole 29, which is connected to the nut groove 10. A lifting block 30 is provided inside the circular hole 29. Below the lifting block 30, there is a circular ring plate 31 installed inside the circular hole 29. A first spring pin 32 is installed on the lower surface of the lifting block 30. A first push wheel 33 is installed at the lower end of the first spring pin 32. A first support platform 34 is installed on one side of the upper end of the fixed platform 1. An inclined surface is provided on the front side of the first support platform 34. The first push wheel 33 can contact the upper end of the first support platform 34. Under normal conditions, under the influence 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 limiting frame 8 can first clamp the lower end of the screw, and then the first push wheel 34 moves to the first support table 34. Under the action of the inclined plane, the first push wheel 34 can be pushed upward and the first spring pin 32 can be compressed. The first spring pin 32 can push the lifting block 30 upward, and the lifting block 30 can push the nut upward, thereby creating pressure between the nut and the two, making it easier to screw the nut onto the screw. After screwing is completed, the rotating table 2 continues to rotate the screw, which can move the first push wheel 33 to the rear side of the first support table 34. Then, under the influence of gravity, the lifting block 30, the first spring pin 32, and the first push wheel 33 return to their original positions. The annular plate 31 supports the lifting block 30 to prevent it from falling.

[0021] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Instruction manual attached Figure 6 Included with instruction manual Figure 8A fixing plate 35 is installed on one side of the second rolling bearing 12. A second spring pin 36 is installed at the lower end of the fixing plate 35. A universal ball bearing 37 is installed at the lower end of the second spring pin 36. A limit hole 38 is opened on the fourth gear 28, and the universal ball bearing 37 can enter the limit hole 38. A lifting rod 39 is installed at the telescopic end of the second spring pin 36. A second push wheel 40 is installed on one side of the lower end of the lifting rod 39. A second support platform 41 is installed on one side of the upper end of the fixing platform 1. The front side of the second support platform 41 is provided with an inclined surface. The second push wheel 40 can interact with the second support platform 41. The upper end of the fixed table 1 has an arc-shaped friction block 42 installed on one side of its upper surface. 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 bearing 37 is located in the limiting hole 38, which can position the fourth gear 28 and the rotating rod 9, so that the inlet and outlet 11 are located on the outside for easy loading. When the rotating table 2 moves the rotating rod 9 to the fourth processing station, the second push wheel 40 can contact the second support table 41, and under the action of the inclined surface of the second support table 41, the second push wheel 40 and the lifting rod 38 are pushed upward. This allows the second spring ejector pin 36 to be compressed, which in turn pulls the universal ball 37 upward, lifting it out of the limiting hole 38. This facilitates the rotation of the fourth gear 28. When the rotating table 2 rotates the rotating rod 9 to the fifth processing station, the second push wheel 40 moves to the rear of the second support table 41, causing the lifting rod 38 and the second spring ejector pin 36 to move downward. If the universal ball 37 is located on the limiting hole 38 at this time, it falls into the limiting hole 38, allowing the fourth gear 28 to rotate. The wheel 28 and the rotating rod 9 are positioned so that the inlet and outlet 11 are on the outside. If the universal ball 37 is not 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, it can rotate under the action of friction. When the limiting hole 38 rotates to below the universal ball 37, the universal ball 37 can enter the limiting hole 38 under the elastic force of the second spring pin 36. Then the fourth gear 28 and the rotating rod 9 can be positioned.

[0022] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Instruction manual attached Figure 5 Instruction manual attached Figure 7 Included with instruction manual Figure 10The limiting frame 8 includes L-shaped support plates 43 located on both sides below the limiting groove 5. The upper end of the L-shaped support plate 43 is installed on the lower surface of the rotating table 2. A limiting block 44 is provided above the L-shaped support plate 43. A semi-circular groove 45 is opened on the inner side of the limiting block 44. An internal thread is provided inside the semi-circular groove 45, which can be matched with the external thread of the screw. A third spring pin 46 is installed on one side of the limiting block 44. The fixed end of the third spring pin 46 is installed on the L-shaped support plate 43. An intercepting rod 47 is installed on both sides of the telescopic end of the third spring pin 46. A first pulley 48 is installed on one side of the intercepting 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 extends through the square opening 50 to the bottom of the L-shaped support plate 43. An interceptor plate 51 is installed on the 9th plate, which 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. The two ends of the guide rod 56 are installed on the L-shaped support plate 43 by fixing rods 57. One second trapezoidal platform 53 is connected to a fixing rod 57 by a telescopic spring 58. A third pulley 59 is installed on one side of the lower end of one second trapezoidal platform 53. An arc-shaped platform 60 is provided above the fixed platform 1. The front end of the arc-shaped platform 60 is provided with an inclined surface. The third pulley 59 can contact the arc-shaped platform 60. The arc-shaped platform 60 is installed on the fixed platform 1 by multiple support rods 61. The process of the limit bracket 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 from the third processing station to the fourth processing station, which allows the third pulley 59 to contact the arc-shaped table 60. Then, under the action of the inclined surface of the arc-shaped table 60, the third pulley 59 can be pushed to one side, causing the second trapezoidal table 53 to move to one side. The two second trapezoidal tables 53 are connected by the connecting rod 54, which allows the two second trapezoidal tables 53 to move synchronously. The guide rod 56 and the guide hole 55 can ensure the direction of movement of the second trapezoidal table 53. When 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, causing the first trapezoidal platform 49 to move upward. The square opening 50 can ensure the direction of movement of the first trapezoidal platform 49. When the first trapezoidal platform 49 moves upward, the first pulley 48, the intercepting rod 47, and the limiting block 44 can be pushed to one side, thereby stretching the third spring pin 46. The two limiting blocks 44 can be combined, and the screw can be clamped by the internal threads on the two limiting blocks 44. If the threads do not correspond at this time, the threads can be temporarily squeezed. When the nut rotates, if When the friction between the nut and the screw is small, the nut can be easily screwed onto the screw. 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 engages with the internal thread on the inner side of the limiting block 44, the external thread on the screw can be clamped. When the screw rotates with the nut, the screw will move downwards due to the threaded connection between the screw and the internal thread of the limiting block 44. However, the expansion ring can limit the screw, preventing it from moving downwards. Since the screw cannot move downwards or rotate, the nut will rotate and move upwards. When the resistance between the nut and the screw is too large... When the servo motor 19 is overloaded and slips, it can prevent the screw from being damaged. After the nut is tightened, the screw is moved to the fifth processing station by the rotating table 2, and the third pulley 59 is moved to the back of the arc-shaped table 60. Then, under the elastic force of the telescopic spring 58, the second trapezoidal table 53 is pushed back to its original position. Under the action of gravity, the first trapezoidal table 49 can return to its original position. The intercepting plate 51 can fall on the square opening 50 to prevent the first trapezoidal table 49 from falling. Under the pulling force of the third spring pin 46, the limiting block 44 can be pulled back to its original position, so that it can avoid the screw and facilitate the unloading.

[0023] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 4 Included with 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, flat washer, and nut from falling off when the rotating table 2 rotates.

[0024] Refer to the instruction manual appendix Figure 1Included with 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 the connecting shaft 67. When the rotating rod 9 rotates to the side of the second feeding channel 15, the arc-shaped rotating plate 66 can block the second feeding channel 15 to prevent the nut from falling off.

[0025] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 4 The fixed platform 1 is equipped with multiple support wheels 68. The support wheels 68 can support the rotating platform 2 and reduce the friction when the rotating platform 2 rotates.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to 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 bolt, comprising a fixed platform (1), a rotating platform (2) above the fixed platform (1), a rotating shaft (3) mounted on the lower end of the rotating platform (2), a first rolling bearing (4) mounted on the lower end of the rotating shaft (3), the first rolling bearing (4) being mounted 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 includes six limiting grooves (5) located 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) is provided below the U-shaped support block (6) and opened inside the limiting groove (5). A limiting frame (8) is provided below the limiting groove (5) and installed on the lower surface of the rotating table (2). An internal thread that matches the external thread of the screw is provided on the limiting frame (8). 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) are 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). The second rolling bearing (12) is installed on the rotating table (2) through an L-shaped rod (13). The assembly mechanism includes a first feeding channel (14) located above the fixed platform (1), which can move the washer into the flat washer groove (7). A second feeding channel (15) is provided below the first feeding channel (14), which can move the nut into the nut groove (10). A first mechanical gripper (16) is installed on the fixed platform (1), which can move the expansion ring above the U-shaped support block (6). A second mechanical gripper (17) is installed on the fixed platform (1), which can grab the screw and make the lower end of the screw pass through the expansion ring and the washer extend to the upper end of the nut. A drive frame (18) is installed on the fixed platform (1), which can drive the rotating platform (2) to rotate and drive the rotating rod (9) to rotate.

2. The assembly device for screw-type expansion anchors according to claim 1, characterized in that, The drive frame (18) includes a servo motor (19) mounted on the upper surface of the 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 outside 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) mesh. 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) mesh. 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 outside 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. The assembly device for screw-type expansion anchors according to claim 2, characterized in that, The lower end of the rotating rod (9) has a circular hole (29) that is connected to the nut groove (10). A lifting block (30) is provided in the circular hole (29). A ring plate (31) installed in the circular hole (29) is provided below the lifting block (30). A first spring pin (32) is installed on the lower surface of the lifting block (30). A first push wheel (33) is installed at the lower end of the first spring pin (32). A first support platform (34) is installed on one side of the upper end of the fixed platform (1). An inclined surface is provided on the front side of the first support platform (34). The first push wheel (33) can contact the upper end of the first support 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 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 pin (36). A limit hole (38) is opened on the fourth gear (28). The universal ball (37) can enter the limit hole (38). A lifting rod (39) is installed at the telescopic end of the second spring pin (36). A second push wheel (40) is installed on one side of the lower end of the lifting rod (39). A second support platform (41) is installed on one side of the upper end of the fixing platform (1). An inclined surface is provided on the front side of the second support platform (41). The second push wheel (40) can contact the upper end of the second support platform (41). An arc-shaped friction block (42) is installed on one side of the upper surface of the fixing platform (1). The upper end of the arc-shaped friction block (42) can contact the lower surface of the fourth gear (28).

5. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that, The limiting frame (8) includes L-shaped support plates (43) located on both sides below the limiting groove (5). The upper end of the L-shaped support plate (43) is installed on the lower surface of the rotating table (2). A limiting block (44) is provided above the L-shaped support plate (43). A semi-circular groove (45) is opened on the inner side of the limiting block (44). An internal thread is provided inside the semi-circular groove (45). The internal thread can be matched with the external thread of the screw. A third spring pin (46) is installed on one side of the limiting block (44). (46) The fixed end is installed on the L-shaped support plate (43). The telescopic end of the third spring pin (46) is equipped with intercepting rods (47) on both sides. The first pulley (48) is installed on one side of the intercepting rod (47). The 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) extends through the square opening (50) to the bottom of the L-shaped support plate (43). The first trapezoidal platform (49) is on An interceptor plate (51) is installed above an 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). The two ends of the guide rod (56) are connected by a fixing rod (57). Installed 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 installed on one side of the lower end of the second trapezoidal platform (53). An arc-shaped platform (60) is provided above the fixed platform (1). The front end of the arc-shaped platform (60) is provided with an inclined surface. The third pulley (59) can contact the arc-shaped platform (60). The arc-shaped platform (60) is installed on the fixed platform (1) via multiple support rods (61).

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

7. An assembly device for screw-type expansion anchors 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) through a connecting shaft (67).

8. An assembly device for a screw-type expansion anchor according to claim 1, characterized in that, The fixed platform (1) is equipped with multiple support wheels (68) on its upper end, which can support the rotating platform (2).

Images