Rail guide pin device capable of removing obstacles

Abstract

The utility model provides a rail guide pin device capable of clearing obstacles, which relates to the technical field of automatic guided vehicles (AGV) and solves the problems that larger and heavier obstacles cannot be cleared and a guide pin is broken and stuck due to the obstacles, the rail guide pin device comprises a guide pin assembly, an obstacle clearing pin assembly and a switch assembly, the guide pin assembly is arranged on one side of the obstacle clearing pin assembly, and the switch assembly is arranged on the other side of the obstacle clearing pin assembly. The switch assembly is arranged on the inner side of the obstacle clearing pin assembly. The obstacle clearing pin is provided with a two-section one-way passing structure, when an obstacle is stuck in a rail and cannot be automatically cleared, the obstacle clearing pin can cross the obstacle in the forward direction, and the situation that the obstacle clearing pin is broken is avoided; when the AGV needs to reverse to clean the stuck obstacle, the obstacle clearing pin can also swing reversely to cross the obstacle, and the situation that the obstacle clearing pin is stuck by the obstacle and cannot move during reversing is avoided; when an obstacle is stuck in the track and cannot be automatically cleaned, the obstacle cleaning pin swings to cross the stuck obstacle, and the inductive switch is triggered, so that automatic parking of the AGV or other conveying equipment can be realized.

Description

Technical Field

[0001] This utility model relates to the field of AGV technology, specifically to a track guide pin device that can clear obstacles. Background Technology

[0002] A track guide pin is a mechanical connector typically installed on the bottom or side of various production line transport equipment, engaging with guide grooves or guide holes on a pre-set track or path. Its main function is to guide the transport equipment along the correct direction, preventing it from deviating from the track or path, thus ensuring stability and accuracy. Since the guide groove is installed on the production line, obstacles such as bolts and nuts inevitably fall into it; therefore, a clearing device needs to be installed in front of the guide pin to remove these obstacles.

[0003] AGVs or other production line transport equipment using track-guided systems face the problem of being unable to clear obstacles inside the track guide grooves. These obstacles interfere with the fit between the guide pins and the guide grooves, causing the AGV to deviate from the track or malfunction. Because the track guide grooves are typically designed to be narrow and located at the bottom or side of the equipment, they are difficult to directly observe and clean. Existing technologies often use cleaning brushes to clear obstacles from the running path, or directly use track guide pins to push obstacles forward. However, if there are large or heavy obstacles inside the guide grooves (such as nuts, bolts, etc. that have fallen into the track guide grooves), the obstacles may become stuck. In this case, the cleaning brush cannot clear the stuck obstacle, and if the AGV continues to move forward, the guide pin will come into contact with the stuck obstacle, causing the guide pin to break. Therefore, a clearing device is needed that not only has the ability to clear obstacles but also can stop the AGV in time when it encounters a stuck obstacle. Utility Model Content

[0004] Therefore, this utility model provides a track guide pin device that can clear obstacles, which can solve problems such as the inability to clear large and heavy obstacles and the guide pin breaking and getting stuck due to obstacles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a track clearing guide pin device, comprising: a guide pin assembly, a clearing pin assembly, and a switch assembly. The guide pin assembly is disposed on one side of the clearing pin assembly, and the clearing pin assembly and the guide pin assembly are bolted together. The switch assembly and the clearing pin assembly are bolted together, and the switch assembly is located inside the clearing pin assembly. Furthermore, the switch assembly and the clearing pin assembly can achieve component linkage.

[0006] The guide pin assembly includes a guide pin seat, a clearing pin mounting plate, a guide pin, and an installation / removal device. The guide pin seat and the clearing pin mounting plate are nested around the outer ring of the guide pin, and the installation / removal device is bolted to the guide pin seat.

[0007] The obstacle clearing pin assembly includes a mounting bracket, an obstacle clearing pin, a rotating shaft, a rotating arm, a tension spring, a pin shaft, and a torsion spring. The mounting bracket has a hollow inner side. The rotating arm is located on the outer side of the rotating shaft. The rotating shaft is located at one end of the mounting bracket, and the rotating shaft and the mounting bracket are rotatably connected. The tension spring connects the mounting bracket and the rotating arm. The pin shaft connects the obstacle clearing pin and the rotating arm. The torsion spring is located at the pin shaft.

[0008] The switch assembly includes a switch bracket and a detection switch, wherein the detection switch is disposed on the bottom outer side of the switch bracket.

[0009] Preferably, the guide pin seat and the obstacle clearing pin mounting plate are provided with two sleeves at their upper and lower ends. An elastic retaining ring is provided on the inner side of the sleeve, and a deep groove ball bearing is provided on the outer side of the sleeve. The guide pin seat, the obstacle clearing pin mounting plate, the sleeve and the deep groove ball bearing are mounted on the guide pin to form a shaft system.

[0010] Preferably, the installation and removal device is provided with a mounting plate, the mounting plate is L-shaped, an adjustment handle is provided on the top of the short side of the mounting plate, and a locking nut and an adjusting screw are also provided on the top of the short side of the mounting plate, the adjusting screw and the locking nut being threadedly connected.

[0011] Preferably, the mounting bracket has a spring mounting bracket on its top and a plurality of threaded holes on its side, and the two sides of the spring mounting bracket and the threaded holes are connected by bolts.

[0012] Preferably, the tension spring is provided with spring caps at both ends, and the spring caps are used to fix and connect with the rotating arm and the spring mounting bracket.

[0013] Preferably, an oil-free bushing is provided between the rotating shaft and the mounting bracket.

[0014] Preferably, the pin is a type B pin.

[0015] Preferably, a cotter pin is also provided at the pin shaft, and the cotter pin is a cotter pin with a chamfered end.

[0016] Preferably, the bottom of the clearing pin is further provided with a clearing pin extension section.

[0017] Preferably, a thin nut is provided on the outer ring of the detection switch, and a set screw is provided on the top of the switch bracket.

[0018] The application employs the above technical solution and has at least the following beneficial effects:

[0019] Because the obstacle-clearing track guide pin device has a double-section unidirectional passage structure, when an obstacle is stuck in the track and cannot be automatically cleared, the obstacle-clearing pin can pass over the obstacle in the forward direction, avoiding the situation where the obstacle-clearing pin breaks; when the AGV needs to reverse to clear the stuck obstacle, the obstacle-clearing pin can also swing in the reverse direction to pass over the obstacle, so that the obstacle-clearing pin will not be stuck by the obstacle and unable to move when reversing.

[0020] Thanks to the combined use of the clearing pin assembly and the switch assembly, when an obstacle is stuck in the track and cannot be cleared automatically, the clearing pin swings over the stuck obstacle and triggers the induction switch, which can realize the automatic stopping of the AGV or other conveying equipment.

[0021] The obstacle-clearing track guide pin device can simultaneously meet the needs of automatically clearing obstacles in the track, automatically stopping when encountering stuck obstacles that cannot be cleared, and reversing to expose obstacles.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the guide pin assembly structure provided in an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the obstacle clearing pin assembly provided in this embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the switch assembly structure provided in an embodiment of the present utility model;

[0028] In the diagram: 1. Guide pin assembly; 2. Clearing pin assembly; 3. Switch assembly; 11. Guide pin seat; 12. Clearing pin mounting plate; 13. Guide pin; 14. Installation / removal equipment; 15. Sleeve; 16. Deep groove ball bearing; 21. Mounting bracket; 22. Clearing pin; 23. Shaft; 24. Rotary arm; 25. Tension spring; 26. Pin; 27. Torsion spring; 28. Oil-free bushing; 29. ​​Cotter pin; 31. Switch bracket; 32. Detection switch; 141. Mounting plate; 142. Adjusting handle; 143. Adjusting screw; 144. Locking nut; 151. Elastic retaining ring; 211. Spring mounting bracket; 212. Threaded hole; 221. Clearing pin extension; 251. Spring cap; 311. Set screw; 321. Thin nut. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] A specific embodiment of this utility model provides a track guide pin device for clearing obstacles, combined with an attached... Figure 1 As shown, the device mainly includes a guide pin assembly 1, a clearing pin assembly 2, and a switch assembly 3. The guide pin assembly 1 supports and positions the guide pin 13 through the guide pin seat 11, serving as the main body of the device in this embodiment and guiding the AGV or other conveying equipment track. The clearing pin assembly 2 is fixed to the guide pin assembly 1 by bolts and is used to push obstacles in the track. The switch assembly 3 is used in pairs with the clearing pin assembly 2 and is fixed to the clearing pin assembly 2 by bolts. It is used to trigger a braking signal when the clearing pin assembly 2 cannot push the obstacle.

[0031] Specifically, the guide pin assembly 1 includes a guide pin seat 11, a clearing pin mounting plate 12, a guide pin 13, and an installation and removal device 14. The guide pin seat 11 and the clearing pin mounting plate 12 are nested on the outer ring of the guide pin 13, and the installation and removal device 14 is bolted to the guide pin seat 11.

[0032] The obstacle clearing pin assembly 2 includes a mounting bracket 21, an obstacle clearing pin 22, a rotating shaft 23, a rotating arm 24, a tension spring 25, a pin 26, and a torsion spring 27. The mounting bracket 21 has a hollow inner side, the rotating arm 24 is located on the outer side of the rotating shaft 23, the rotating shaft 23 is located at one end of the mounting bracket 21, and the rotating shaft 23 and the mounting bracket 21 are rotatably connected. The tension spring 25 connects the mounting bracket 21 and the rotating arm 24, the pin 26 connects the obstacle clearing pin 22 and the rotating arm 24, and the torsion spring 27 is located at the pin 26.

[0033] The switch assembly 3 includes a switch bracket 31 and a detection switch 32, with the detection switch 32 located at the bottom outer side of the switch bracket 31.

[0034] Specifically, such as Figure 2 As shown, both the guide pin seat 11 and the clearing pin mounting plate 12 are provided with sleeves 15. The sleeves are used to nest the guide pin seat 11 and the clearing pin mounting plate 12 on the outer ring of the guide pin 13. Deep groove ball bearings 16 are provided on the upper and lower sides of the guide pin seat 11 and the clearing pin mounting plate 12. The deep groove ball bearings 16 have low frictional resistance and high speed, and can be used on the guide pin 13 to bear radial loads or combined loads of radial and axial forces acting simultaneously. The guide pin seat 11, the clearing pin mounting plate 12, the sleeves 15 and the deep groove ball bearings 16 are mounted on the guide pin 13 to form a shaft system, which is fixed by elastic retaining rings 151, wherein the elastic retaining rings 151 are A-type shaft elastic retaining rings.

[0035] The installation and dismantling device 14 includes a mounting plate 141 and an adjusting handle 142. The mounting plate 141 is an L-shaped mounting plate. The adjusting handle 142 is provided on the top of the short side of the mounting plate 141. The top of the short side of the mounting plate 141 is also provided with a locking nut 144 and an adjusting screw 143. The adjusting screw 143 and the locking nut 144 are threaded together. The guide pin seat 11 is installed on the mounting plate 141 by a set screw. The mounting plate 141 is bolted to the AGV or rigidly connected to other conveying equipment frames. The height of the mounting plate 141 is adjusted by adjusting the adjusting screw 143 and the locking nut 144. The adjusting handle 142 is used to manually lift the device of this embodiment for installation, dismantling or maintenance work.

[0036] Specifically, such as Figure 3 As shown, the mounting bracket 21 of the clearing pin assembly 2 is rigidly connected to the clearing pin mounting plate 12 of the guide pin assembly 1 via a set screw. The oil-free bushing 28 is mounted on the rotating shaft 23 via an overfit. The rotating arm 24 is connected to the mounting bracket 21 via the rotating shaft 23 and the elastic retaining ring 151, wherein the elastic retaining ring 151 is an A-type shaft elastic retaining ring. The limiting block on the mounting bracket 21 ensures that the rotating arm 24 can only rotate relative to the inner side of the embodiment device from a vertical position around the rotating shaft 23. The side of the mounting bracket is provided with several threaded holes 212 for connecting and installing the spring mounting bracket 211. The tension spring 25 passes through... The spring mounting bracket 211 and spring cover 251 are respectively connected to the rotating arm 24 and the mounting bracket 21 for automatic return of the rotating arm 24; the rotating arm 24 and the clearing pin 22 are connected by the pin 26 and the cotter pin 29, wherein the pin 26 is a type B pin and the cotter pin 29 is a chamfered cotter pin; the limiting block on the clearing pin 22 can only rotate the clearing pin 22 from the vertical position around the pin 26 relative to the outside of the device in this embodiment; the torsion spring 27 is used for automatic return of the clearing pin 22; the clearing pin extension section 221 is connected to the bottom of the clearing pin 22 by the set screw, which can adjust the overall length of the clearing pin 22.

[0037] When there is an obstacle at the front end of the clearing pin 22 and the clearing pin extension 221, the obstacle that is lighter or not stuck in the guide groove will be pushed away by the clearing pin 22 and the clearing pin extension 221 due to the tension spring 25. If the obstacle is too heavy or stuck in the guide groove, the rotating arm 24, the clearing pin 22 and the clearing pin extension 221 will rotate around the rotating shaft 23, thereby passing over the obstacle. When the AGV stops, if the worker wants to clear the obstacle, the AGV needs to be reversed. At this time, the clearing pin 22 and the clearing pin extension 221 will rotate around the pin shaft 26, so that the clearing pin 22 and the clearing pin extension 221 can pass over the obstacle.

[0038] Specifically, the switch assembly 3 is rigidly connected to the obstacle clearing pin assembly 2 by bolts. When an obstacle causes the rotating arm 24, the obstacle clearing pin 22, and the obstacle clearing pin extension 221 to rotate around the rotating shaft 23, a sensor plate is provided on the side of the obstacle clearing pin 22. The sensor plate will swing above the detection switch 32 and trigger the detection switch 32. After receiving the switch signal, the AGV control system will immediately start braking, thereby ensuring that the AGV stops before the obstacle comes into contact with the guide pin 13.

[0039] The advantages of this embodiment are:

[0040] Because the obstacle-clearing track guide pin device has a double-section unidirectional passage structure, when an obstacle is stuck in the track and cannot be automatically cleared, the obstacle-clearing pin can pass over the obstacle in the forward direction, avoiding the situation where the obstacle-clearing pin breaks; when the AGV needs to reverse to clear the stuck obstacle, the obstacle-clearing pin can also swing in the reverse direction to pass over the obstacle, so that the obstacle-clearing pin will not be stuck by the obstacle and unable to move when reversing.

[0041] Thanks to the combined use of the clearing pin assembly and the switch assembly, when an obstacle is stuck in the track and cannot be cleared automatically, the clearing pin swings over the stuck obstacle and triggers the induction switch, which can realize the automatic stopping of the AGV or other conveying equipment.

[0042] The obstacle-clearing track guide pin device can simultaneously meet the needs of automatically clearing obstacles in the track, automatically stopping when encountering stuck obstacles that cannot be cleared, and reversing to expose obstacles.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clearable track guide pin apparatus, characterized by, The device comprises a guide pin assembly (1), a barrier pin assembly (2) and a switch assembly (3), the guide pin assembly (1) is arranged on one side of the barrier pin assembly (2), the barrier pin assembly (2) and the guide pin assembly (1) are bolted, the switch assembly (3) and the barrier pin assembly (2) are bolted, the switch assembly (3) is located inside the barrier pin assembly (2), and the switch assembly (3) and the barrier pin assembly (2) can realize assembly linkage. The guide pin assembly (1) comprises a guide pin seat (11), a barrier pin mounting plate (12), a guide pin (13) and a mounting and dismounting device (14), the guide pin seat (11) and the barrier pin mounting plate (12) are nested in the outer circle of the guide pin (13), and the mounting and dismounting device (14) is bolted with the guide pin seat (11). The barrier pin assembly (2) comprises a mounting bracket (21), a barrier pin (22), a rotating shaft (23), a rotating arm (24), a tensile spring (25), a pin shaft (26) and a torsional spring (27), the inside of the mounting bracket (21) is hollow, the rotating arm (24) is arranged on the outside of the rotating shaft (23), the rotating shaft (23) is arranged at one end of the mounting bracket (21), the rotating shaft (23) and the mounting bracket (21) are rotatably connected, the tensile spring (25) connects the mounting bracket (21) and the rotating arm (24), the pin shaft (26) connects the barrier pin (22) and the rotating arm (24), and the torsional spring (27) is arranged at the pin shaft (26). The switch assembly (3) comprises a switch bracket (31) and a detection switch (32), and the detection switch (32) is arranged at the bottom outside of the switch bracket (31).

2. The barrier-removing rail guide pin device according to claim 1, wherein the guide pin seat (11) and the barrier pin mounting plate (12) are provided with two sleeves (15) at the upper and lower ends, the inside of the sleeve (15) is provided with an elastic retainer (151), the outside of the sleeve (15) is provided with a deep groove ball bearing (16), and the guide pin seat (11), the barrier pin mounting plate (12), the sleeve (15) and the deep groove ball bearing (16) are installed on the guide pin (13) to form an axle system.

3. The barrier-removing rail guide pin device according to claim 1, wherein the mounting and dismounting device (14) is provided with a mounting plate (141), the mounting plate (141) is arranged in an L shape, the top of the short side of the mounting plate (141) is provided with an adjusting handle (142), the top of the short side of the mounting plate (141) is further provided with a locking nut (144) and an adjusting screw (143), and the adjusting screw (143) and the locking nut (144) are threadedly connected.

4. The barrier-removing rail guide pin device according to claim 1, wherein ​ ​ ​ The top of the mounting bracket (21) is provided with a spring mounting bracket (211), the side of the mounting bracket (21) is provided with a plurality of threaded holes (212), and the two side edges of the spring mounting bracket (211) and the threaded holes (212) are connected by bolts.

5. The obstacle-removing track guide pin device according to claim 4, characterized in that: The two ends of the tension spring (25) are provided with spring glands (251), and the spring glands (251) are used for fixed connection with the rotating arm (24) and the spring mounting bracket (211).

6. The obstacle-removing track guide pin device according to claim 5, characterized in that: The rotating shaft (23) and the mounting bracket (21) are provided with an oil-free bushing (28).

7. The obstacle-removing track guide pin device according to claim 6, characterized in that: The pin shaft (26) is provided as a B-shaped pin shaft.

8. The obstacle-removing track guide pin device according to claim 7, characterized in that: The pin shaft (26) is also provided with a split pin (29), and the split pin (29) is a split pin with a chamfered end.

9. The obstacle-removing track guide pin device according to claim 8, characterized in that: The bottom of the obstacle-removing pin (22) is also provided with an obstacle-removing pin extension section (221).

10. The obstacle-removing track guide pin device according to claim 1, characterized in that: The outer ring of the detection switch (32) is provided with a thin nut (321), and the top of the switch bracket (31) is provided with a set screw (311).

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