An automatic device for installing bolt nut gaskets

Abstract

The present invention relates to the field of bolt assembly, and specifically relates to an automatic device for installing bolt nuts and washers. It includes: a rotating disc, a driving motor, which is arranged beside the rotating disc and its output end is connected to the rotating disc; six processing stations are sequentially arranged along the clockwise direction on the upper end of the rotating disc. The six processing stations include a bolt feeding station, a spherical washer feeding station, a wear-reducing washer feeding station, a nut presetting station, a nut tightening station, and a blanking station. The six processing stations all use a three-axis moving mechanism to move bolts and other assembly components thereof; a pre-installation mechanism, which can preset the nut on the upper end of the bolt, includes a driving magnet and a driven magnet with the same magnetic poles, six clamping mechanisms, which are respectively arranged at the six processing stations and can clamp the bolt; two unsealing mechanisms, which are respectively arranged beside the bolt feeding station and the blanking station through brackets and can control the clamping mechanism to clamp or loosen the bolt.

Description

Technical Field

[0001] The invention relates to the field of anchor rod assembly, and in particular to a device for automatically installing an anchor rod nut gasket. Background Art

[0002] Anchoring technology in geotechnical engineering is the use of anchor rods or cables to reinforce rock mass. It fully utilizes the stability of the rock mass itself and is a reinforcement technology that has little disturbance to the original rock, fast construction speed, safety, reliability, and cost-effectiveness. Anchor rods can actively reinforce rock mass, effectively control its deformation, and prevent collapse and damage of rock mass. Anchor rods are common throughout the world and are usually drilled into the rock formation and remain in the rock formation to provide support to the entire rock formation that assists the supporting structure. For example, anchor rods can be used in buildings as well as mines, tunnels, waterways, canals, walls, shafts, aisles, access roads, tunnels, etc. When excavating a tunnel underground, for example, anchor rods are usually installed at progressive intervals along the tunnel.

[0003] At present, the production and processing of anchor rods required by coal mines has been automated. However, after the anchor rods are processed, the installation of spherical bowls, anti-friction washers and nuts requires manual operation, which not only takes up manpower but also affects production efficiency. In order to further improve the production efficiency of complete sets of anchor rods and highlight the advantages of mechanized operations, we studied and explored the fully automatic installation technology of anchor rod accessories, and strived to design and manufacture a set of devices for automatically installing spherical bowls, anti-friction washers and nuts of anchor rods.

[0004] When assembling and producing anchor rods, existing equipment usually uses an assembly line production line with an automated system to automatically install spherical washers, anti-friction washers, and anchor nuts. There is also a switch between non-nut installation and nut installation modes, and manual and automatic mode switching to meet usage requirements.

[0005] However, since the assembly process of anchor rods involves multiple parts, the equipment body occupies a large area when an assembly line is used, and the production cost will increase accordingly. At the same time, when the existing anchor rod assembly equipment uses a nut motor to tighten the nut, it is necessary to compile PLC and touch screen programs, use sensors to feedback to the PLC, and the PLC internal program controls the orderly logical actions of each part of the mechanism to achieve the effect of automatically putting on nuts and gaskets. The structural design is relatively complex. Moreover, when the existing equipment is tightening the nut, not only is there a rigid connection between the nut and the anchor rod, which may cause damage to the end of the anchor rod, but there is also a lack of pre-installation between the nut and the anchor rod, and it is impossible to ensure that the nut and the anchor rod do not fail to cooperate. In addition, in the existing equipment, after the nut is screwed into the rod body, the clamp-type automatic feeding rack retreats to withdraw the anchor rod, and it still needs to be bundled manually, and the whole process is not fully automated.

[0006] For this reason, it is necessary for us to design a device for automatically installing anchor nut gaskets. Summary of the Invention

[0007] Based on this, in view of the problems in the prior art, it is necessary to provide an automatic device for installing bolt nut gaskets.

[0008] To solve the problems in the prior art, the technical solution adopted by the present invention is as follows:

[0009] An automatic device for installing bolt nut gaskets, comprising:

[0010] A rotating disk, which is arranged horizontally;

[0011] A driving motor, which is arranged beside the rotating disk and its output end is connected to the rotating disk;

[0012] A supporting bracket, which is arranged at the lower end of the rotating disk to play a supporting role;

[0013] Six processing stations are sequentially arranged along the clockwise direction on the upper end of the rotating disk. The six processing stations include a bolt loading station, a spherical washer loading station, a wear-reducing gasket loading station, a nut presetting station, a nut tightening station, and a blanking station. The six processing stations respectively use a three-axis moving mechanism to realize the movement of bolts and their assembled components;

[0014] A pre-installation mechanism, which is connected to the output end of the three-axis moving mechanism at the nut presetting station, includes a driving magnet and a driven magnet. The driving magnet is arranged at the lower end of the driven magnet, and the magnetic poles of the driving magnet and the driven magnet are the same;

[0015] Six clamping mechanisms are respectively arranged at the six processing stations and can clamp the bolts;

[0016] Two unsealing mechanisms are respectively arranged beside the bolt loading station and the blanking station through brackets, and can control the clamping mechanism to clamp or loosen the bolt.

[0017] Furthermore, the unsealing mechanism includes a power motor and a driving roller. The power motor is arranged on the upper end of the rotating disk through a motor bracket, and the two driving rollers are respectively connected to the output end of the power motor through a speed reducer.

[0018] Furthermore, the clamping mechanism includes a power roller, a rubber gasket, a power gear, two power racks, and two power support rods. The power roller is arranged horizontally, the rubber gasket is sleeved outside the power roller, the power roller can abut against the driving roller and the friction force is increased through the rubber gasket. The power gear is coaxially arranged at the lower end of the power roller and is key-connected to the power gear. The two power racks are symmetrically arranged on both sides of the power gear and are meshed with the power gear. The two power support rods are respectively connected to one end of the two power racks away from the power gear.

[0019] Further, the clamping mechanism further includes a positioning support, an auxiliary top block, two connecting top blocks, two connecting support rods, two clamping support rods, and two return springs. The positioning support is fixedly connected to the rotating disk. The positioning support is connected to the power gear through a pin shaft. The two clamping support rods are symmetrically arranged and are respectively slidably connected to the positioning support. The auxiliary top block is arranged on the symmetry axis of the two clamping support rods and is connected to the positioning support. The upper ends of the two connecting support rods are respectively hinged to the ends of the two clamping support rods away from the auxiliary top block. The middle parts of the two connecting support rods are respectively hinged to the positioning support. The two connecting top blocks are respectively connected to the ends of the two connecting support rods close to the power gear at the lower ends. The two connecting top blocks respectively abut against the two power support rods. The two return springs are respectively sleeved outside the two clamping support rods. One end of each of the two return springs abuts against the positioning support, and the other end abuts against the corresponding connecting support rod. Further, the pre-installation mechanism further includes a first supporting plate, a preset pin shaft, two anti-detachment gaskets, two clamping jaws, two limiting short pins, two limiting tension springs, and two limiting sliders. The two clamping jaws are symmetrically arranged. The two limiting short pins are symmetrically arranged at the upper ends of the two clamping jaws. The two limiting short pins are respectively slidably connected to the two clamping jaws. The two limiting tension springs are respectively sleeved outside the two limiting short pins, and their ends are respectively fixedly connected to the two clamping jaws. The two limiting sliders are respectively fixedly connected to the ends of the two clamping jaws away from each other. The first supporting plate is arranged at the upper ends of the two clamping jaws. Two limiting sliding grooves are formed at the lower end of the first supporting plate. The two limiting sliding grooves are respectively slidably connected to the two limiting sliders. The preset pin shaft is fixedly connected to the middle of the first supporting plate.

[0020] Further, the pre-installation mechanism further includes a limiting sleeve, a positioning tension spring, a reverse-preventing ratchet, a reverse-preventing insertion rod, a reverse-preventing pin shaft, a reverse-preventing spring, a supporting bottom box, and two limiting gaskets. The two limiting gaskets are slidably arranged coaxially with the preset pin shaft. The first supporting plate is rotatably connected to the lower limiting gasket. The reverse-preventing ratchet is rotatably connected to the upper limiting gasket. The positioning tension spring is sleeved outside the preset pin shaft, and its two ends are respectively fixedly connected to the two limiting gaskets. The limiting sleeve is fixedly connected to the upper end of the first supporting plate. The limiting sleeve is coaxially arranged with the preset pin shaft and is slidably connected to the lower end of the supporting bottom box. The reverse-preventing pin shaft is horizontally arranged beside the reverse-preventing ratchet and is slidably connected to the supporting bottom box. The reverse-preventing insertion rod is fixedly connected to the end of the reverse-preventing pin shaft close to the reverse-preventing ratchet. The end of the reverse-preventing insertion rod close to the reverse-preventing ratchet abuts against the reverse-preventing ratchet. The reverse-preventing spring is sleeved outside the reverse-preventing pin shaft. One end of the reverse-preventing spring abuts against the reverse-preventing insertion rod, and the other end abuts against the inner wall of the supporting bottom box.

[0021] Further, the pre-installation mechanism further includes a sliding top box, a second supporting plate, two sliding support plates, and four sliding pins. The active magnet is connected to the upper end of the anti-reverse ratchet and is coaxially arranged with the preset pin shaft. The second supporting plate is slidably connected to the preset pin shaft. The driven magnet is fixedly connected to the lower end of the second supporting plate. The sliding top box is fixedly connected to the supporting bottom box. The sliding top box is connected to the output end of the three-axis moving mechanism. The two sliding support plates are respectively fixedly connected to the upper end of the second supporting plate and are slidably connected to the inner wall of the sliding top box. Two sliding through holes are formed on each of the two sliding support plates. The four sliding pins are respectively fixedly connected to the inner wall of the sliding top box and are respectively slidably connected to the four sliding through holes.

[0022] Further, the pre-installation mechanism further includes a sliding rack, a sliding gear, a first bevel gear, and a second bevel gear. An anti-slip flange is formed at the upper end of the preset pin shaft. The anti-slip flange is slidably connected to the second bevel gear. The sliding rack is fixedly connected to the upper end of the second supporting plate. The sliding gear is arranged beside the sliding rack and meshes with it. The first bevel gear is coaxially connected to the sliding gear. The second bevel gear is arranged at the upper end of the first bevel gear and meshes with the first bevel gear.

[0023] The beneficial effects of the present invention compared with the prior art are as follows:

[0024] Firstly: This device adopts a multi-station disc assembly design. Compared with a pipeline-type production line, this equipment occupies less floor space and is more conducive to assembly.

[0025] Secondly: This device cooperates with the active magnet and the driven magnet. While realizing the upward movement of the preset pin shaft, it can also prevent the preset pin shaft from colliding with other components during rotation, enabling the clamping jaw to achieve mechanical presetting through passive contact during the process of rotating the nut, simplifying the mechanical structure, and avoiding damage to the end of the anchor rod.

[0026] Thirdly: This device uses a clamping mechanism to achieve three-point positioning of the anchor rod. While preventing the anchor rod from moving during the assembly and processing process, it is also convenient for clamping and feeding of the anchor rod, simplifying the fixing process of the anchor rod. Description of the Drawings

[0027] Figure 1 is a three-dimensional structural schematic diagram of the embodiment;

[0028] Figure 2 is Figure 1 the enlarged schematic diagram of the structure at A in

[0029] Figure 3 is the upper view of the three-dimensional structure of the embodiment;

[0030] Figure 4 is the three-dimensional structural schematic diagram of the pre-installation mechanism in the embodiment;

[0031] Figure 5 is a schematic diagram of the three-dimensional structure of the clamping mechanism in the embodiment;

[0032] Figure 6 is an exploded front view of the three-dimensional structure of the pre-installation mechanism of the embodiment;

[0033] Figure 7 3D exploded side view of the pre-installation mechanism of the embodiment

[0034] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at B in the middle;

[0035] Figure 9 yes Figure 7 Enlarged schematic diagram of the structure at point C in the middle.

[0036] The numbers in the figure are:

[0037] 1. Active motor; 2. Rotating disc; 3. Support bracket; 4. Anchor rod loading station; 5. Spherical pad bowl loading station; 6. Anti-friction gasket loading station; 7. Nut preset station; 8. Nut tightening station; 9. Unloading station; 10. Feeding mechanism; 11. Three-axis moving mechanism; 12. Clamping mechanism; 13. Power roller; 14. Rubber gasket; 15. Power gear; 16. Power rack; 17. Power support rod; 18. Connecting top block; 19. Connecting support rod; 20. Positioning support; 21. Clamping support rod; 22. Reset spring; 23. Auxiliary top block; 24. Unsealing mechanism; 25. Power motor; 26. Active roller; 27. Pre-installation mechanism; 2 8. Anti-slip gasket; 29. ​​Clamping claw; 30. Limit short pin; 31. Limit tension spring; 32. Limit slider; 33. First supporting plate; 34. Limit slide groove; 35. Preset pin shaft; 36. Anti-slip flange; 37. Limit sleeve; 38. Limit gasket; 39. Positioning tension spring; 40. Anti-reverse ratchet; 41. Anti-reverse plug rod; 42. Anti-reverse pin shaft; 43. Anti-reverse spring; 44. Supporting bottom box; 45. Active magnet; 46. Driven magnet; 47. Second supporting plate; 48. Sliding support plate; 49. Sliding through hole; 50. Sliding pin shaft; 51. Sliding top box; 52. Sliding rack; 53. Sliding gear; 54. First bevel gear; 55. Second bevel gear. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] refer to Figures 1 to 9 , a device for automatically installing anchor nut gaskets, comprising:

[0040] The rotating disc 2 is arranged in a horizontal state;

[0041] The driving motor 1 is arranged beside the rotating disc 2, and its output end is connected to the rotating disc 2;

[0042] The supporting bracket 3 is arranged at the lower end of the rotating disc 2 to play a supporting role;

[0043] Six processing stations are sequentially arranged along the clockwise direction at the upper end of the rotating disc 2. The six processing stations include a bolt feeding station 4, a spherical washer feeding station 5, an anti-friction washer feeding station 6, a nut pre-setting station 7, a nut tightening station 8, and a blanking station 9. The six processing stations respectively use a three-axis moving mechanism 11 to move bolts and their assembled components;

[0044] The pre-installation mechanism 27 is connected to the output end of the three-axis moving mechanism 11 at the nut pre-setting station 7, and includes a driving magnet 45 and a driven magnet 46. The driving magnet 45 is arranged at the lower end of the driven magnet 46, and the driving magnet 45 and the driven magnet 46 have the same magnetic poles;

[0045] Six clamping mechanisms 12 are respectively arranged corresponding to the six processing stations and can clamp the bolts;

[0046] Two unsealing mechanisms 24 are respectively arranged beside the bolt feeding station 4 and the blanking station 9 through brackets, and can control the clamping mechanism 12 to clamp or loosen the bolts.

[0047] During automatic installation, the driving motor 1 starts and drives the rotating disc 2 connected to its output end to rotate intermittently. During this process, after the clamping mechanism 12 clamps and fixes the bolt at the bolt feeding station 4, the bolt will move in the clockwise direction under the action of the rotating disc 2. Subsequently, the bolt assembles the spherical washer at the spherical washer feeding station 5, assembles the anti-friction washer at the anti-friction washer feeding station 6, screws the nut onto the upper end of the bolt through the pre-installation mechanism 27 at the nut pre-setting station 7, tightens the nut at the nut tightening station 8, and finally completes blanking at the blanking station 9. During the entire processing process, the three-axis moving mechanism 11 can drive the clamping mechanism 12 to clamp and install bolts and their assembled components on the bolt, and the feeding mechanism 10 at the corresponding station can transport bolts and their assembled components to the lower end of the three-axis moving mechanism 11 at the corresponding station.

[0048] In order to achieve slow clamping and releasing of the bolts and avoid damaging the bolt body, the following features are specifically set:

[0049] The unsealing mechanism 24 includes a power motor 25 and an active roller 26. The power motor 25 is arranged at the upper end of the rotating disc 2 through a motor frame. The two active rollers 26 are respectively connected to the output end of the power motor 25 through a reduction gearbox. When the clamping mechanism 12 moves to the side of the two power motors 25, the power motor 25 starts and drives the active roller 26 to rotate through the reduction gearbox. After the active roller 26 rotates, it can drive the clamping mechanism 12 to operate. The active roller 26 located at the anchor rod feeding station 4 can drive the clamping mechanism 12 to clamp the anchor rod, and the active roller 26 located at the unloading station 9 can drive the clamping mechanism 12 to loosen the anchor rod. The reduction gearbox can prevent the output end of the power motor 25 from rotating too fast, ensuring that the active roller 26 can achieve slow clamping and loosening of the anchor rod to avoid damage to the anchor rod.

[0050] In order to simplify the structure of the device and reduce production costs, the following features are specifically set:

[0051] The clamping mechanism 12 includes a power roller 13, a rubber gasket 14, a power gear 15, two power racks 16 and two power support rods 17. The power roller 13 is arranged in a horizontal state, and the rubber gasket 14 is sleeved on the outside of the power roller 13. The power roller 13 can be against the active roller 26 and the friction force is increased by the rubber gasket 14. The power gear 15 is coaxially arranged at the lower end of the power roller 13 and is key-connected with the power gear 15. The two power racks 16 are symmetrically arranged on both sides of the power gear 15 and meshed with the power gear 15. The two power support rods 17 are respectively connected to the ends of the two power racks 16 away from the power gear 15. When the power roller 13 moves to the side of the active roller 26, the rotation of the active roller 26 will drive the power roller 13 against it to rotate, and the rotation of the power roller 13 will drive the power gear 15 connected to it to rotate, and the rotation of the power gear 15 will drive the two power racks 16 meshing with it to move, and the movement of the power rack 16 will drive the power support rod 17 connected to it to move. In this process, the rubber gasket 14 can increase the friction between the power roller 13 and the active roller 26, ensuring that the active roller 26 can drive the power roller 13 to rotate, while there is no need for the active roller 26 and the power roller 13 to transmit through the gear meshing method, which simplifies the structure of the device.

[0052] In order to prevent the anchor rod from moving during the movement of the rotating disc 2, the following features are specifically set:

[0053] The clamping mechanism 12 further includes a positioning support 20, an auxiliary top block 23, two connecting top blocks 18, two connecting support rods 19, two clamping support rods 21 and two return springs 22. The positioning support 20 is fixedly connected to the rotating disc 2. The positioning support 20 is connected to the power gear 15 through a pin shaft. The two clamping support rods 21 are symmetrically arranged and are respectively slidably connected to the positioning support 20. The auxiliary top block 23 is arranged on the symmetry axis of the two clamping support rods 21 and is connected to the positioning support 20. The upper ends of the two connecting support rods 19 are respectively hinged to one ends of the two clamping support rods 21 far away from the auxiliary top block 23. The middle parts of the two connecting support rods 19 are respectively hinged to the positioning support 20. The two connecting top blocks 18 are respectively connected to one ends of the lower parts of the two connecting support rods 19 close to the power gear 15. The two connecting top blocks 18 respectively abut against the two power support rods 17. The two return springs 22 are respectively sleeved outside the two clamping support rods 21. One ends of the two return springs 22 abut against the positioning support 20, and the other ends abut against the corresponding connecting support rods 19. After the two power support rods 17 move, the two power support rods 17 will push the connecting top blocks 18 to move. The movement of the two connecting top blocks 18 will drive the lower ends of the two connecting support rods 19 connected thereto to move. Since the middle parts of the two connecting support rods 19 are hinged to the positioning support 20, the two connecting support rods 19 will rotate around the hinge points. Subsequently, the clamping support rods 21 hinged to the upper ends of the two connecting support rods 19 will move, and at this time the anchor rod will be clamped and positioned by the two clamping support rods 21. During this process, the auxiliary top block 23 can cooperate with the two clamping support rods 21 to perform three-point positioning and clamping on the anchor rod, avoiding the anchor rod from moving around during the movement of the rotating disc 2.

[0054] In order to prevent the nut from being in hard contact with the clamping mechanism 12 during the assembly process, thereby damaging the nut and the anchor rod, the following features are specifically set:

[0055] The pre-installation mechanism 27 further includes a first supporting plate 33, a preset pin shaft 35, two anti-loosening gaskets 28, two clamping jaws 29, two limiting short pins 30, two limiting tension springs 31 and two limiting sliders 32. The two clamping jaws 29 are symmetrically arranged. The two limiting short pins 30 are symmetrically arranged at the upper ends of the two clamping jaws 29. The two limiting short pins 30 are respectively slidably connected to the two clamping jaws 29. The two limiting tension springs 31 are respectively sleeved outside the two limiting short pins 30 and their ends are respectively fixedly connected to the two clamping jaws 29. The two limiting sliders 32 are respectively fixedly connected to the ends of the two clamping jaws 29 away from each other. The first supporting plate 33 is arranged at the upper ends of the two clamping jaws 29. Two limiting sliding grooves 34 are formed at the lower end of the first supporting plate 33. The two limiting sliding grooves 34 are respectively slidably connected to the two limiting sliders 32. The preset pin shaft 35 is fixedly connected to the middle of the first supporting plate 33. When the three-axis moving mechanism 11 above the nut preset station 7 operates, the two clamping jaws 29 will approach the nut. At this time, the two clamping jaws 29 approach each other under the action of the two limiting tension springs 31. The two limiting tension springs 31 drive the two clamping jaws 29 to move through their own elastic deformation force. Subsequently, the two clamping jaws 29 increase the friction force between themselves and the nut through the anti-loosening gaskets 28 to prevent the two clamping jaws 29 from slipping off the nut when clamping the nut. During this process, the two clamping jaws 29 will passively clamp the nut when touching the nut to prevent the nut from making hard contact with it.

[0056] To prepare for the subsequent pre-installation work of the nut, the following features are specifically set:

[0057] The pre-installation mechanism 27 further includes a limit sleeve 37, a positioning tension spring 39, a reverse-preventing ratchet wheel 40, a reverse-preventing insertion rod 41, a reverse-preventing pin shaft 42, a reverse-preventing spring 43, a supporting bottom box 44 and two limit gaskets 38. The two limit gaskets 38 are slidably arranged coaxially with the preset pin shaft 35. The first supporting plate 33 is rotatably connected to the lower limit gasket 38. The reverse-preventing ratchet wheel 40 is rotatably connected to the upper limit gasket 38. The positioning tension spring 39 is sleeved outside the preset pin shaft 35, and its two ends are fixedly connected to the two limit gaskets 38 respectively. The limit sleeve 37 is fixedly connected to the upper end of the first supporting plate 33. The limit sleeve 37 is arranged coaxially with the preset pin shaft 35 and is slidably connected to the lower end of the supporting bottom box 44. The reverse-preventing pin shaft 42 is horizontally arranged beside the reverse-preventing ratchet wheel 40 and is slidably connected to the supporting bottom box 44. One end of the reverse-preventing insertion rod 41 close to the reverse-preventing ratchet wheel 40 is fixedly connected to the reverse-preventing pin shaft 42. One end of the reverse-preventing insertion rod 41 close to the reverse-preventing ratchet wheel 40 abuts against the reverse-preventing ratchet wheel 40. The reverse-preventing spring 43 is sleeved outside the reverse-preventing pin shaft 42. One end of the reverse-preventing spring 43 abuts against the reverse-preventing insertion rod 41, and the other end abuts against the inner wall of the supporting bottom box 44. After the two clamping jaws 29 clamp the nut, when the three-axis moving mechanism 11 drives the two clamping jaws 29 to move downward (the specific moving process will be explained later), the two clamping jaws 29 drive the nut to abut against the upper end of the anchor rod. As the two clamping jaws 29 continue to move downward, the anchor rod exerts a reaction force on the two clamping jaws 29. This reaction force is transmitted upward and pushes the first supporting plate 33 to move upward. The movement of the first supporting plate 33 will push the preset pin shaft 35 connected thereto to move upward. The movement of the preset pin shaft 35 will drive the reverse-preventing ratchet wheel 40 connected thereto to move upward. The upward movement of the reverse-preventing ratchet wheel 40 will drive the limit gasket 38 connected thereto to move upward. At this time, the positioning tension spring 39 deforms and generates an elastic deformation force, and the reverse-preventing ratchet wheel 40 will also be ready to rotate in only one direction under the action of the reverse-preventing insertion rod 41, preparing for the subsequent pre-installation work of the nut.

[0058] In order to enable the two clamping jaws 29 to move downward, the following features are specifically set:

[0059] The pre-installation mechanism 27 further includes a sliding top box 51, a second supporting plate 47, two sliding support plates 48 and four sliding top boxes 51. The active magnet 45 is connected to the upper end of the anti-reverse ratchet 40 and is coaxially arranged with the preset pin shaft 35. The second supporting plate 47 is slidably connected to the preset pin shaft 35. The passive magnet 46 is fixedly connected to the lower end of the second supporting plate 47. The sliding top box 51 is fixedly connected to the supporting bottom box 44. The sliding top box 51 is connected to the output end of the three-axis moving mechanism 11. The two sliding support plates 48 are respectively fixedly connected to the upper end of the second supporting plate 47 and are slidably connected to the inner wall of the sliding top box 51. Two sliding through holes 49 are formed on each of the two sliding support plates 48. Four sliding pin shafts 50 are respectively fixedly connected to the inner wall of the sliding top box 51 and are respectively slidably connected to the four sliding through holes 49. After the anti-reverse ratchet 40 moves upward, the anti-reverse ratchet 40 will drive the active magnet 45 connected thereto to move upward. Since the magnetic poles of the active magnet 45 and the passive magnet 46 are the same, the passive magnet 46 will move upward under the action of magnetic force. The movement of the passive magnet 46 will push the second supporting plate 47 connected thereto to move upward. The second supporting plate 47 is limited by the four sliding pin shafts 50 during the movement. And since the sliding top box 51 is connected to the supporting bottom box 44, after the three-axis moving mechanism 11 is started, it will drive the supporting bottom box 44 to displace through the sliding top box 51. The supporting bottom box 44 can drive the first supporting plate 33 to move through the preset pin shaft 35. The movement of the first supporting plate 33 will drive the two clamping jaws 29 connected thereto to move downward.

[0060] In order to drive the preset pin shaft 35 to rotate, the following features are specifically set:

[0061] The pre-installation mechanism 27 further includes a sliding rack 52, a sliding gear 53, a first bevel gear 54 and a second bevel gear 55. An anti-slip flange 36 is formed at the upper end of the preset pin shaft 35. The anti-slip flange 36 is slidably connected to the second bevel gear 55. The sliding rack 52 is fixedly connected to the upper end of the second supporting plate 47. The sliding gear 53 is arranged beside the sliding rack 52 and meshes with it. The first bevel gear 54 is coaxially connected to the sliding gear 53. The second bevel gear 55 is arranged at the upper end of the first bevel gear 54 and meshes with the first bevel gear 54. After the preset pin shaft 35 moves upward, the preset pin shaft 35 is connected to the second bevel gear 55 through the anti-slip flange 36. At the same time, since the second supporting plate 47 moves upward, the second supporting plate 47 will drive the sliding rack 52 connected thereto to move upward. The upward movement of the sliding rack 52 will drive the sliding gear 53 meshing with it to rotate. The rotation of the sliding gear 53 will drive the first bevel gear 54 connected thereto to rotate. The rotation of the first bevel gear 54 will drive the second bevel gear 55 meshing with it to rotate. The rotation of the second bevel gear 55 will drive the preset pin shaft 35 connected thereto to rotate. As can be seen from the previous text, the rotation of the preset pin shaft 35 will drive the nut to rotate through the two clamping jaws 29. The nut will be screwed onto the upper end of the anchor bolt when rotating.

[0062] The working principle of this device is as follows: During automatic installation, the driving motor 1 starts and drives the rotating disc 2 connected to its output end to rotate intermittently. During this process, after the clamping mechanism 12 clamps and fixes the anchor rod at the anchor rod feeding station 4, the anchor rod will move clockwise under the action of the rotating disc 2. Subsequently, a spherical washer is assembled on the anchor rod at the spherical washer feeding station 5, and an anti-friction washer is assembled at the anti-friction washer feeding station 6.

[0063] At the nut presetting station 7, the three-axis moving mechanism 11 drives two clamping jaws 29 to move downward. At this time, the two clamping jaws 29 drive the nut to abut against the upper end of the anchor rod. After the anchor rod exerts a reaction force on the two clamping jaws 29, under the action of the active magnet 45 and the passive magnet 46, the two clamping jaws 29 will rotate, and the nut will be screwed onto the upper end of the anchor rod during this process, thus completing the nut presetting work.

[0064] When the nut presetting is completed, the assembled anchor rod tightens the nut at the nut tightening station 8, and finally completes the feeding at the feeding station 9. During the entire processing process, the three-axis moving mechanism 11 can drive the clamping mechanism 12 to clamp and install the anchor rod to be assembled and its assembly parts on the anchor rod, and the feeding mechanism 10 at the corresponding station can transport the anchor rod and its assembly parts to the lower end of the three-axis moving mechanism 11 at the corresponding station.

[0065] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An automatic device for installing bolt nut gaskets, characterized in that Comprising: A rotating disk, which is arranged horizontally; A driving motor, which is arranged beside the rotating disk and whose output end is connected to the rotating disk; A supporting bracket, which is arranged at the lower end of the rotating disk to play a supporting role; Six processing stations are sequentially arranged along the clockwise direction at the upper end of the rotating disk. The six processing stations include a bolt feeding station, a spherical washer feeding station, an anti-friction washer feeding station, a nut presetting station, a nut tightening station, and a blanking station. The six processing stations respectively use a three-axis moving mechanism to move the bolt and its assembled components; A pre-installation mechanism, which is connected to the output end of the three-axis moving mechanism at the nut presetting station, includes a driving magnet and a driven magnet. The driving magnet is arranged at the lower end of the driven magnet, and the magnetic poles of the driving magnet and the driven magnet are the same; Six clamping mechanisms are respectively arranged corresponding to the six processing stations and can clamp the bolt; Two unsealing mechanisms are respectively arranged beside the bolt feeding station and the blanking station through brackets and can control the clamping mechanism to clamp or loosen the bolt; The pre-installation mechanism further includes a first supporting plate, a preset pin, two anti-detachment washers, two clamping jaws, two limit pins, two limit springs, and two limit sliders. The two clamping jaws are symmetrically arranged. The two limit pins are symmetrically arranged at the upper ends of the two clamping jaws. The two limit pins are respectively slidably connected to the two clamping jaws. The two limit springs are respectively sleeved outside the two limit pins and their ends are respectively fixedly connected to the two clamping jaws. The two limit sliders are respectively fixedly connected to the ends of the two clamping jaws away from each other. The first supporting plate is arranged at the upper ends of the two clamping jaws. Two limit chutes are formed at the lower end of the first supporting plate. The two limit chutes are respectively slidably connected to the two limit sliders. The preset pin is fixedly connected to the middle of the first supporting plate; The pre-installation mechanism further includes a limit sleeve, a positioning spring, an anti-reverse ratchet, an anti-reverse insertion rod, an anti-reverse pin, an anti-reverse spring, a supporting bottom box, and two limit washers. The two limit washers are slidably arranged coaxially with the preset pin. The first supporting plate is rotatably connected to the lower limit washer. The anti-reverse ratchet is rotatably connected to the upper limit washer. The positioning spring is sleeved outside the preset pin, and its two ends are respectively fixedly connected to the two limit washers. The limit sleeve is fixedly connected to the upper end of the first supporting plate. The limit sleeve is coaxially arranged with the preset pin and is slidably connected to the lower end of the supporting bottom box. The anti-reverse pin is arranged horizontally beside the anti-reverse ratchet and is slidably connected to the supporting bottom box. The anti-reverse insertion rod is fixedly connected to the end of the anti-reverse pin close to the anti-reverse ratchet. The end of the anti-reverse insertion rod close to the anti-reverse ratchet abuts against the anti-reverse ratchet. The anti-reverse spring is sleeved outside the anti-reverse pin. One end of the anti-reverse spring abuts against the anti-reverse insertion rod, and the other end abuts against the inner wall of the supporting bottom box.

2. The automatic bolt nut gasket installation device according to claim 1, characterized in that, The unsealing mechanism includes a power motor and a driving roller. The power motor is arranged at the upper end of the rotating disk through a motor bracket. The two driving rollers are respectively connected to the output end of the power motor through a speed reducer.

3. The automatic bolt nut gasket installation device according to claim 2, characterized in that, The clamping mechanism includes a power roller, a rubber gasket, a power gear, two power racks and two power support rods. The power roller is arranged horizontally. The rubber gasket is sleeved outside the power roller. The power roller can abut against the driving roller and the friction force is increased through the rubber gasket. The power gear is coaxially arranged at the lower end of the power roller and is key-connected to the power gear. The two power racks are symmetrically arranged on both sides of the power gear and are meshed with the power gear. The two power support rods are respectively connected to one ends of the two power racks away from the power gear.

4. The automatic bolt nut gasket installation device according to claim 3, characterized in that, The clamping mechanism further includes a positioning support, an auxiliary top block, two connecting top blocks, two connecting support rods, two clamping support rods and two return springs. The positioning support is fixedly connected to the rotating disc. The positioning support is connected to the power gear through a pin shaft. The two clamping support rods are symmetrically arranged and are respectively slidably connected to the positioning support. The auxiliary top block is arranged on the symmetry axis of the two clamping support rods and is connected to the positioning support. The upper ends of the two connecting support rods are respectively hinged to one ends of the two clamping support rods away from the auxiliary top block. The middle parts of the two connecting support rods are respectively hinged to the positioning support. The two connecting top blocks are respectively connected to one ends of the two connecting support rods close to the power gear at the lower ends. The two connecting top blocks respectively abut against the two power support rods. The two return springs are respectively sleeved outside the two clamping support rods. One ends of the two return springs abut against the positioning support, and the other ends abut against the corresponding connecting support rods.

5. The automatic bolt nut gasket installation device according to claim 1, characterized in that, The pre-installation mechanism further includes a sliding top box, a second supporting plate, two sliding support plates and four sliding pins. The active magnet is connected to the upper end of the anti-reverse ratchet and is coaxially arranged with the preset pin shaft. The second supporting plate is slidably connected to the preset pin shaft. The passive magnet is fixedly connected to the lower end of the second supporting plate. The sliding top box is fixedly connected to the supporting bottom box. The sliding top box is connected to the output end of the three-axis moving mechanism. The two sliding support plates are respectively fixedly connected to the upper end of the second supporting plate and are slidably connected to the inner wall of the sliding top box. Two sliding through holes are formed on each of the two sliding support plates. The four sliding pins are respectively fixedly connected to the inner wall of the sliding top box and are respectively slidably connected to the four sliding through holes.

6. The automatic bolt nut gasket installation device according to claim 5, characterized in that, The pre-installation mechanism further includes a sliding rack, a sliding gear, a first bevel gear and a second bevel gear. An anti-loosening flange is formed at the upper end of the preset pin shaft. The anti-loosening flange is slidably connected to the second bevel gear. The sliding rack is fixedly connected to the upper end of the second supporting plate. The sliding gear is arranged beside the sliding rack and is meshed with it. The first bevel gear is coaxially connected to the sliding gear. The second bevel gear is arranged at the upper end of the first bevel gear and is meshed with the first bevel gear.

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