An automatic tappet mechanism

Abstract

The present invention is applicable to the field of pin replenishment and cancellation equipment, and discloses an automatic pin feeding mechanism, which includes a positioning mechanism and a pin feeding mechanism. The positioning mechanism includes a rotating seat, a detection sensor, and a rotation driving component. At the front end of the rotating seat, there is a first card slot adapted to the pin shaft and / or a second card slot cooperating with the pin shaft nut. The rotating seat is radially provided with a pin inlet hole and a pin outlet hole, and both the pin inlet hole and the pin outlet hole are communicated with the first card slot and / or the second card slot. The detection sensor is arranged on the rotating seat. The rotation driving component is used to drive the rotating seat to rotate so that the detection sensor determines the position of the pin hole of the pin shaft, and is used to drive the rotating seat to rotate back a preset angle so that the pin inlet hole is aligned with the pin hole. During the positioning process, the rotating seat can determine the position of the pin hole by rotating at most one circle, and the positioning speed is fast. The pin feeding mechanism is installed on the rotating seat, and the outlet end of the pin feeding mechanism is communicated with the pin inlet hole. After positioning is completed, the pin feeding mechanism inserts the pin into the pin hole of the pin shaft, which can improve the pin feeding speed.

Description

Technical Field

[0001] The present invention relates to the field of pin replacement equipment, and in particular to an automatic pin feeding mechanism. Background Art

[0002] When maintaining a transmission line, a pin replacement operation needs to be performed on the pins of the connection bolts of power components. Although there are automatic pin replacement devices in the prior art, they usually cooperate with a camera and directly insert the pin into the pin hole by using a robotic arm. In this way, it is necessary to judge the position of the pin hole from multiple degrees of freedom and calculate the relevant distances, resulting in a slow pin feeding speed. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic pin feeding mechanism, which aims to solve the technical problems that the existing automatic pin replacement devices need to judge the position of the pin hole from multiple degrees of freedom and have a slow pin feeding speed.

[0004] To achieve the above object, the solution provided by the present invention is:

[0005] An automatic pin feeding mechanism includes a positioning mechanism and a pin feeding mechanism. The positioning mechanism includes a rotating seat, a detection sensor, and a rotation driving component. A first card slot adapted to a pin shaft and / or a second card slot cooperating with a pin shaft nut are provided at the front end of the rotating seat. An inlet pin hole and an outlet pin hole are radially provided on the rotating seat. The inlet pin hole and the outlet pin hole are symmetrically arranged about the axis of the rotating seat. The inlet pin hole communicates with the first card slot and / or the second card slot, and the outlet pin hole communicates with the first card slot and / or the second card slot. The detection sensor is arranged on the rotating seat. The rotation driving component is used to drive the rotating seat to rotate so that the detection sensor determines the position of the pin hole of the pin shaft, and is used to drive the rotating seat to rotate back by a preset angle so that the inlet pin hole is aligned with the pin hole. The pin feeding mechanism is installed on the rotating seat, and the outlet end of the pin feeding mechanism communicates with the inlet pin hole. The pin feeding mechanism is used to insert the pin into the pin hole of the pin shaft.

[0006] Preferably, the detection sensor includes a transmitter and a receiver. A first through hole and a second through hole are provided on the rotating seat. The first through hole and the second through hole are symmetrically arranged about the axis of the rotating seat. The transmitter is installed in the first through hole, and the receiver is installed in the second through hole.

[0007] Preferably, the automatic pin feeding mechanism further includes a mounting base, the mounting base is provided with a mounting cavity, the rotary drive assembly includes a rotary drive member, a driving wheel and a gear shaft, the rotary drive member is mounted on the mounting base, the driving wheel is sleeved on the output end of the rotary drive member, the gear shaft is rotatably mounted in the mounting cavity, and the gear shaft is meshed and driven with the driving wheel, and the rotary seat is connected with the gear shaft.

[0008] Preferably, a plurality of weight reduction holes are provided on the gear shaft.

[0009] Preferably, the rotary drive assembly further includes a bearing and a locking nut, the bearing is mounted on the gear shaft, the locking nut is threadedly connected with the gear shaft, and the locking nut is located outside the bearing and abuts against the bearing.

[0010] Preferably, the rotary drive assembly further includes a gear cover, the gear cover is sleeved outside the driving wheel and the gear shaft, and the gear cover is detachably connected with the mounting base.

[0011] Preferably, the pin feeding mechanism includes a guiding base, a magazine assembly and a pin feeding assembly. The guiding base is provided with a pin conveying groove, a first guiding groove and a second guiding groove which are respectively communicated with the pin conveying groove. The outlet end of the pin conveying groove is communicated with the pin feeding hole of the automatic pin feeding mechanism. The magazine assembly is connected with the guiding base, stores pins and is used for conveying the pins into the pin conveying groove. The pin feeding assembly includes a pin feeding driving member, a first sprocket, a first chain, a second sprocket, a second chain and a pushing head. The pin feeding driving member is mounted on the guiding base. The first sprocket is connected with the first output end of the pin feeding driving member. The first chain is slidably arranged in the first guiding groove and is meshed and driven with the first sprocket. The second sprocket is connected with the second output end of the pin feeding driving member. The second chain is slidably arranged in the second guiding groove and is meshed and driven with the second sprocket. Two sides of the pushing head are respectively connected with the first chain and the second chain, and the pushing head is slidably arranged in the pin conveying groove and is used for magnetically adsorbing the pins.

[0012] Preferably, a pin inlet communicating with the pin conveying groove is provided on the guiding seat. The pin inlet includes a first hole portion adapted to the end head of the pin and a second hole portion adapted to the pin body of the pin. The bin assembly includes a nail storage box, a first push block, a first elastic member, and a ejector rod. The nail storage box is connected to the guiding seat. The nail storage box is provided with a nail groove and a third guiding groove communicating with the nail groove. The top of the nail groove is provided with a first opening, and a second opening is provided on one side of the nail groove facing the pin inlet. The second opening is directly opposite to the second hole portion. Pins are arranged in the nail groove. One end of the nail groove facing the pin inlet is the nail outlet position. The first push block is slidably connected to the nail storage box. The first elastic member is elastically compressed between the first push block and the nail storage box. The ejector rod is slidably arranged in the third guiding groove, and the ejector rod is located below the nail outlet position. Both sides of the ejector rod are respectively connected to the first chain and the second chain.

[0013] Preferably, the pin feeding mechanism includes a storage box, a pin pressing assembly, and a pin conveying assembly. The storage box is provided with a storage groove. The front surface of the storage box is provided with a fifth sliding groove and a feeding groove. The fifth sliding groove and the feeding groove respectively communicate with the storage groove. The storage groove is provided with a discharging station, which is arranged above the pin outlet hole. Multiple pins are arranged in the storage groove. The pressing assembly includes a second push block and a second elastic member. The second push block includes a push plate and an inverted L-shaped plate provided at the first end of the push plate. A pressing portion is provided at the second end of the push plate. The push plate is adapted to the fifth sliding groove, and the pressing portion is slidably arranged in the storage groove. The inverted L-shaped plate is slidably connected to the back surface of the storage box, and the inverted L-shaped plate is connected to the storage box through the second elastic member. The pin conveying assembly is arranged above the storage box, and the movement path of the pin conveying assembly passes through the discharging station. The pin conveying assembly is used to insert the pin into the pin hole of the pin shaft.

[0014] Preferably, the pin conveying assembly includes a fixed seat, a pin driving member, a third sprocket, and a third chain. The fixed seat is installed on the top of the storage box. A fourth guiding groove is provided on the fixed seat. The fourth guiding groove extends from the fixed seat into the storage box and is located at the position corresponding to the storage groove and the discharging station. The fourth guiding groove communicates with the storage groove. The pin driving member is installed on the fixed seat. The third sprocket is connected to the output end of the pin driving member. The third chain is meshed with the third sprocket for transmission. The third chain is slidably arranged in the fourth guiding groove.

[0015] When the automatic pin feeding mechanism provided by the present invention positions the pin hole, the rotating seat is sleeved on the pin shaft or the nut, and then the rotating drive assembly drives the rotating seat to rotate. At the same time, the detection sensor provided on the rotating seat detects the position of the pin hole. After detecting the pin hole, the rotating drive assembly drives the rotating seat to rotate back a preset angle, so that the pin inlet hole on the rotating seat is aligned with the pin hole. The pin feeding mechanism sends the pin through the pin inlet hole into the pin hole. The rotating seat can determine the position of the pin hole by rotating at most one circle, and the detection sensor can determine the position of the pin hole. The positioning speed is fast. After completing the positioning of the pin hole, the rotating seat rotates back a preset angle, and the pin feeding mechanism can insert the pin into the pin hole of the pin shaft, thereby improving the pin feeding speed. Moreover, by using the detection sensor to determine the position of the pin hole, the positioning accuracy is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 is a schematic structural diagram of the automatic pin feeding mechanism provided by an embodiment of the present invention;

[0018] Figure 2 is Figure 1 the top view of the automatic pin feeding mechanism in

[0019] Figure 3 is Figure 2 the sectional view along line A-A in

[0020] Figure 4 is Figure 1 the schematic structural diagram of the positioning mechanism in

[0021] Figure 5 is Figure 1 the schematic structural diagram of the rotating seat in

[0022] Figure 6 is Figure 1 the exploded view of the pin feeding mechanism in

[0023] Figure 7 is Figure 6 the partial schematic diagram of the guide seat in

[0024] Figure 8 is Figure 6 the schematic structural diagram of the magazine assembly in

[0025] Figure 9 is Figure 8Schematic diagram of the nail storage box structure;

[0026] Figure 10 Schematic diagram of the structure of the pin feeding mechanism according to another embodiment provided by the present invention;

[0027] Figure 11 is Figure 10 Schematic diagram of the structure of the pin feeding mechanism in another direction;

[0028] Figure 12 of Figure 10 Exploded view of the pin feeding mechanism;

[0029] Figure 13 is the usage state of the line connection fitting.

[0030] Explanation of the reference numerals in the drawings:

[0031] 100. Automatic pin feeding mechanism; 10. Positioning mechanism; 11. Rotating seat; 111. First card slot; 112. Second card slot; 113. Inlet and outlet hole; 114. Pin outlet hole; 115. First perforation; 116. Second perforation; 12. Detection sensor; 121. Transmitter; 122. Receiver; 13. Rotating drive assembly; 131. Rotating drive member; 132. Driving wheel; 133. Gear shaft; 1331. Weight reduction hole; 134. Bearing; 135. Locking nut; 136. Gear cover; 137. Bush; 138. Third proximity switch; 20. Pin feeding mechanism; 21. Guide seat; 211. Pin conveying groove; 212. First guide groove; 213. Second guide groove; 214. Third chute; 215. Fourth chute; 216. Guide base; 2161. Main body part; 2162. First U-shaped part; 2163. Second U-shaped part; 217. First cover; 218. Second cover; 219. Pin inlet; 2191. First hole part; 2192. Second hole part; 22. Magazine assembly; 221. Nail storage box; 2211. Nail groove; 2212. Third guide groove; 2213. First opening; 2214. Second opening; 2215. Inlet hole; 222. First push block; 223. First elastic member; 224. Ejector rod; 225. Pressure cover; 226. First guide rod; 227. Second guide rod; 23. Pin feeding assembly; 231. Pin feeding drive member; 232. First sprocket; 233. First chain; 234. Pusher head; 235. Second sprocket; 236. Second chain; 237. Connecting rod; 24. Storage box; 241. Storage groove; 242. Fifth chute; 243. Inlet and outlet groove; 244. Guide rail seat; 25. Pin pressing assembly; 251. Second push block; 2511. Push plate; 25111. Pressing part; 2512. Inverted L-shaped plate; 2513. Guide rail; 26. Pin conveying assembly; 261. Fixed seat; 2611. Fourth guide groove; 262. Pin drive member; 263. Third sprocket; 264. Third chain; 30. Mounting seat; 31. Mounting cavity; 40. Connecting plate; 200. Line connection fitting; 300. Pin shaft; 400. Pin shaft nut; 500. Upper wire; 600. Lower wire; 700. Pin; 701. End head; 702. Pin body. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0034] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0035] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] As Figures 1 to 12 shown, it is an automatic pin insertion mechanism 100 of an embodiment of the present invention, and the automatic pin insertion mechanism 100 is applicable to a pin compensation device. The pin compensation device includes a robotic arm and the automatic pin insertion mechanism 100. Figure 13 In it, the upper conductor 500 and the lower conductor 600 are clamped by the line connection fitting 200 and fixed by the pin shaft 300 and the pin shaft nut 400. The pin shaft nut 400 is threadedly connected to the pin shaft 300. A pin hole is provided at the end of the pin shaft 300, and a pin 700 is installed in the pin hole. If the pin 700 is missing, a pin compensation operation needs to be carried out. The pin compensation device realizes the pin compensation operation by carrying a live working lifting platform for transmission lines. The live working lifting platform for transmission lines provides power for the pin compensation device and drives the pin compensation device to move along the upper conductor 500. After the pin compensation device reaches the fault position, a pin compensation operation is carried out. The live working lifting platform for transmission lines can adopt existing equipment as long as it can provide power for the pin compensation device and drive the pin compensation device to move along the upper conductor 500.

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 13, the automatic pin feeding mechanism 100 of the embodiment of the present invention includes a positioning mechanism 10 and a pin feeding mechanism 20. The positioning mechanism 10 includes a rotating seat 11, a detection sensor 12, and a rotation driving assembly 13. A first card slot 111 adapted to the pin shaft 300 and / or a second card slot 112 cooperating with the pin shaft nut 400 are provided at the front end of the rotating seat 11. An inlet pin hole 113 and an outlet pin hole 114 are radially provided on the rotating seat 11. The inlet pin hole 113 and the outlet pin hole 114 are symmetrically arranged about the axis of the rotating seat 11. The inlet pin hole 113 communicates with the first card slot 111 and / or the second card slot 112, and the outlet pin hole 114 communicates with the first card slot 111 and / or the second card slot 112. The detection sensor 12 is arranged on the rotating seat 11 and is used to detect the position of the pin hole. The rotation driving assembly 13 is used to drive the rotating seat 11 to rotate so that the detection sensor 12 determines the position of the pin hole of the pin shaft 300, and is used to drive the rotating seat 11 to rotate back by a preset angle so that the inlet pin hole 113 is aligned with the pin hole, facilitating the pin feeding mechanism 20 to complete the pin feeding operation. The pin feeding mechanism 20 is installed on the rotating seat 11, and the outlet end of the pin feeding mechanism 20 communicates with the inlet pin hole 113. The pin feeding mechanism 20 is used to insert the pin 700 into the pin hole of the pin shaft 300.

[0038] Understandably, when installing the pin 700, the pin 700 passes through the inlet pin hole 113 and is installed in the pin hole of the pin shaft 300. The end head 701 of the pin 700 is stuck outside the inlet pin hole 113, and the pin body 702 extends into the outlet pin hole 114 or extends outside the outlet pin hole 114.

[0039] Understandably, the inlet pin hole 113 extends to the front end face of the rotating seat 11, and the outlet pin hole 114 extends to the front end face of the rotating seat 11. That is, after the pin feeding mechanism 20 inserts the pin 700 into the pin hole of the pin shaft 300, moving the automatic pin feeding mechanism 100 backward will not affect the pin 700.

[0040] Optionally, when the length of the pin shaft 300 is relatively long, the rotating seat 11 can cooperate with the pin shaft 300, and only the first card slot 111 is provided on the rotating seat 11. When the length of the pin shaft 300 is relatively short and there is no position on the pin shaft 300 to cooperate with the rotating seat 11, only the second card slot 112 can be provided on the rotating seat 11. The rotating seat 11 can also be provided with both the first card slot 111 and the second card slot 112 at the same time. At this time, the first card slot 111 cooperates with the pin shaft 300, and the second card slot 112 cooperates with the pin shaft nut 400.

[0041] Understandably, the positions where the rotating seat 11 is sleeved on the pin shaft 300 and the pin shaft nut 400 are preset. That is, the position and depth of the first card slot 111 and the position and depth of the second card slot 112 are set according to the distance between the pin hole and the end face of the pin shaft 300 or the distance between the pin hole and the pin shaft nut 400, as long as it satisfies that when the rotating seat 11 is sleeved on the pin shaft 300 and the pin shaft nut 400, the inlet and outlet hole 113 on the rotating seat rotates by a preset angle and can be aligned with the pin hole of the pin shaft 300.

[0042] It should be noted that during application, the automatic pin feeding mechanism 100 is installed on a robotic arm (not shown in the figure). The robotic arm drives the automatic pin feeding mechanism 100 to move up and down and translate relative to the pin shaft 300 so that the front end of the rotating seat 11 is sleeved on the pin shaft 300 or the pin shaft nut 400. The rotation drive assembly 13 drives the rotating seat 11 to rotate. During the rotation of the rotating seat 11, the detection sensor 12 detects the position of the pin hole. After detecting the pin hole, the rotation drive assembly 13 drives the rotating seat 11 to rotate back by a preset angle (such as 90 degrees) so that the inlet and outlet hole 113 on the rotating seat 11 is aligned with the pin hole, and then the pin feeding mechanism 20 inserts the pin 700 into the pin hole of the pin shaft 300.

[0043] In this embodiment, a connecting plate 40 is provided on the pin replenishing device, and the pin replenishing device is installed on the robotic arm through the connecting plate 40.

[0044] Furthermore, the pin replenishing device may also be provided with a forming mechanism (not shown in the figure). After the automatic pin feeding mechanism 100 completes automatic pin feeding, the forming mechanism can bend the part of the pin body 702 of the pin 700 that protrudes from the pin shaft 300 to prevent the pin 700 from falling off. The specific structure of the forming mechanism will not be introduced as long as it can achieve the above functions.

[0045] When the automatic pin feeding mechanism 100 of the embodiment of the present invention positions the pin hole, the rotating seat 11 is sleeved on the pin shaft 300 or the nut, and then the rotation drive assembly 13 drives the rotating seat 11 to rotate. At the same time, the detection sensor 12 provided on the rotating seat 11 detects the position of the pin hole. After detecting the pin hole, the rotation drive assembly 13 drives the rotating seat 11 to rotate back by a preset angle (such as 90 degrees) so that the inlet and outlet hole 113 on the rotating seat 11 is aligned with the pin hole. The pin feeding mechanism 20 sends the pin 700 through the inlet and outlet hole 113 into the pin hole. The rotating seat 11 rotates at most one circle, and the detection sensor 12 can determine the position of the pin hole. The positioning speed is fast. After completing the pin hole positioning, the rotating seat 11 rotates back by a preset angle, and the pin feeding mechanism 20 can insert the pin 700 into the pin hole of the pin shaft, thereby improving the pin feeding speed. Moreover, by determining the position of the pin hole through the detection sensor 12, the positioning accuracy is relatively high.

[0046] Please refer to Figure 2 and Figure 6As shown, exemplarily, in some embodiments, the detection sensor 12 is an opposed photoelectric sensor. The detection sensor 12 includes a transmitter 121 and a receiver 122. The rotating base 11 is provided with a first through hole 115 and a second through hole 116. The first through hole 115 and the second through hole 116 are symmetrically arranged with respect to the axis of the rotating base 11. The transmitter 121 is installed in the first through hole 115, and the receiver 122 is installed in the second through hole 116. When the rotating base 11 rotates to align the first through hole 115 with the pin hole, the laser emitted by the transmitter 121 can be received by the receiver 122. At this time, the position of the pin hole can be determined.

[0047] It can be understood that the preset angle for the rotation driving assembly 13 to drive the rotating base 11 to rotate is related to the positional relationship between the detection sensor 12 and the inlet pin hole 113. For example, if the detection sensor 12 is 90 degrees different from the inlet pin hole 113, then the preset angle of rotation is 90 degrees.

[0048] Please refer to Figure 3 、 Figure 4 and Figure 5 As shown, exemplarily, in some embodiments, the automatic pin feeding mechanism 100 further includes a mounting base 30. The mounting base 30 is provided with a mounting cavity 31. The rotation driving assembly 13 includes a rotation driving member 131, a driving wheel 132, and a gear shaft 133. The rotation driving member 131 is installed on the mounting base 30. The driving wheel 132 is sleeved on the output end of the rotation driving member 131. The gear shaft 133 is rotatably installed in the second end of the mounting cavity 31, and the gear shaft 133 is in meshing transmission with the driving wheel 132. The rotating base 11 is connected to the gear shaft 133. When it is necessary to drive the rotating base 11 to rotate, the rotation driving member 131 drives the driving wheel 132 to rotate, and the gear shaft 133 rotates along with the driving wheel 132, so that the rotating base 11 rotates. By reasonably setting the structure of the rotation driving assembly 13, while making the overall structure of the automatic pin feeding mechanism 100 more compact, it can drive the rotating base 11 to rotate and move horizontally to complete the positioning operation and the bending operation.

[0049] Specifically, the rotation driving member 131 is a motor.

[0050] Optionally, the rotating base 11 is screwed to the gear shaft 133, and the connection method is simple and reliable.

[0051] Optionally, a plurality of weight reduction holes 1331 are provided on the gear shaft 133. By providing the weight reduction holes 1331, the weight of the automatic pin feeding mechanism 100 can be reduced, making it lighter.

[0052] Preferably, the rotation drive assembly 13 further includes a bearing 134. The gear shaft 133 is installed in the installation cavity 31 through the bearing 134. By providing the bearing 134, the gear shaft 133 is rotatably installed in the installation cavity 31, and the provision of the bearing 134 can reduce the friction coefficient of the gear shaft 133 during rotation and ensure its rotational accuracy.

[0053] Optionally, two bearings 134 are provided. The rotation drive assembly 13 further includes a bushing 137. The bushing 137 is installed on the gear shaft 133 and is located between the two bearings 134.

[0054] Specifically, the bearing 134 is an angular contact ball bearing, which can bear radial load and axial load simultaneously and can work at a relatively high rotational speed.

[0055] Further, the rotation drive assembly 13 further includes a lock nut 135. The bearing 134 is installed on the gear shaft 133. The lock nut 135 is threadedly connected to the gear shaft 133. The lock nut 135 is located outside the bearing 134 and abuts against the bearing 134. The installation method is simple and reliable and is easy to disassemble and assemble.

[0056] Preferably, the rotation drive assembly 13 further includes a gear cover 136. The gear cover 136 is sleeved outside the driving gear 132 and the gear shaft 133, and the gear cover 136 is detachably connected to the mounting base 30. By providing the gear cover 136, the driving gear 132 and the gear shaft 133 can be protected.

[0057] Preferably, the rotation drive assembly 13 further includes a third proximity switch 138. The third proximity switch 138 is used to detect the zero position of the rotating seat 11. After the automatic pin feeding mechanism 100 is assembled, there will be cables. When debugging the rotating seat 11, it is necessary to find the zero position of the rotating seat 11 to avoid repeatedly rotating the rotating seat 11 and damaging the cables.

[0058] Please refer to Figure 4 、 Figures 7 - 12 As shown, exemplarily, in some embodiments, the pin feeding mechanism 20 includes a guide seat 21, a magazine assembly 22 and a pin feeding assembly 23. A pin conveying groove 211 is provided on the guide seat 21. The outlet end of the pin conveying groove 211 communicates with the pin inlet hole 113. The magazine assembly 22 is connected to the guide seat 21. The magazine assembly 22 stores pins 700 and is used to convey the pins 700 into the pin conveying groove 211. The pin feeding assembly 23 is used to convey the pins 700 from the pin conveying groove 211 to the pin hole. Through the mutual cooperation of the magazine assembly 22 and the pin feeding assembly 23, automatic pin feeding is realized, so that the pin replenishing device can operate continuously, thereby improving the pin replenishing efficiency.

[0059] Preferably, the pin feeding and discharging assembly 23 includes a pin feeding driving member 231, a first sprocket 232, a first chain 233 and a push head 234. A first guiding groove 212 communicating with the pin conveying groove 211 is further provided on the guiding seat 21. The pin feeding driving member 231 is installed on the guiding seat 21. The first sprocket 232 is connected to the first output end of the pin feeding driving member 231. The first chain 233 is slidably arranged in the first guiding groove 212, and the first chain 233 is meshed with the first sprocket 232 for transmission. The push head 234 is connected to the first chain 233 and is slidably arranged in the pin conveying groove 211. The push head 234 is used for magnetically adsorbing the pin 700, that is, a magnetic adsorption structure is arranged at one end of the push head 234 away from the first chain 233, or the push head 234 is made of a magnetic material. The pin feeding and discharging assembly 23 has a simple structure, reliable operation and high transmission efficiency. Moreover, the driving mode of the chain and sprocket enables the running path of the pin feeding and discharging assembly 23 to be bent, so that the center of gravity of the pin feeding and discharging assembly 23 can be reduced. In addition, the push head 234 can magnetically adsorb the pin 700. When the pin 700 is not aligned with the pin hole and needs to be retracted, the push head 234 can drive the pin 700 to retract and reposition.

[0060] When feeding the pin, the pin feeding driving member 231 drives the first sprocket 232 to rotate. The first chain 233 meshed with the first sprocket 232 moves along the first guiding groove 212, and drives the push head 234 and the pin 700 adsorbed on the push head 234 to move towards the pin inlet hole 113 until the pin 700 is sent into the pin hole. Then the pin feeding driving member 231 stops working. The forming mechanism 30 bends the pin body 702 of the pin 700 to expose a part of the pin shaft 300. The pin feeding driving member 231 drives the first sprocket 232 to rotate in the reverse direction, and the first chain 233 drives the push head 234 to reset to the initial position for pin 700 replenishment.

[0061] Please refer to Figure 7 and Figure 8 As shown, exemplarily, in some embodiments, the pin feeding and discharging assembly 23 further includes a second sprocket 235 and a second chain 236. A second guiding groove 213 communicating with the pin conveying groove 211 is further provided on the guiding seat 21. The pin feeding driving member 231 and the pin conveying groove 211 are both arranged between the first guiding groove 212 and the second guiding groove 213. The second sprocket 235 is connected to the second output end of the pin feeding driving member 231. The second chain 236 is slidably arranged in the second guiding groove 213, and the second chain 236 is meshed with the second sprocket 235 for transmission. Two sides of the push head 234 are respectively connected to the first chain 233 and the second chain 236. By arranging the second chain 236 to cooperate with the first chain 233, the push head 234 is driven to reciprocate along the pin conveying groove 211 from both sides of the push head 234, and the running stability is higher.

[0062] Specifically, the pin feeding driving member 231 is a worm and gear motor.

[0063] Optionally, the feeding and discharging assembly 23 further includes a connecting rod 237. The connecting rod 237 horizontally penetrates through the pushing head 234, and two sides of the connecting rod 237 are respectively connected to the first chain 233 and the second chain 236.

[0064] Optionally, two sides of the connecting rod 237 are respectively connected to the first chain 233 and the second chain 236 through connecting ropes (not shown in the figure).

[0065] When feeding and discharging, the feeding and discharging driving member 231 drives the first sprocket 232 and the second sprocket 235 to rotate synchronously. The first chain 233 engaged with the first sprocket 232 moves along the first guiding groove 212, and the second chain 236 engaged with the second sprocket 235 moves along the second guiding groove 213, and drives the pushing head 234 and the pin 700 adsorbed on the pushing head 234 to move towards the feeding hole 113 until the pin 700 is sent into the pin hole. Then, the feeding and discharging driving member 231 stops working. The forming mechanism 30 bends the pin body 702 of the pin 700 to expose a part of the pin shaft 300. The feeding and discharging driving member 231 drives the first sprocket 232 and the second sprocket 235 to rotate in the reverse direction. The first chain 233 drives the pushing head 234 and the pin 700 adsorbed on the pushing head 234 to leave the feeding hole 113 and reset to the initial position for replenishing the pin 700.

[0066] Further, third sliding grooves 214 and fourth sliding grooves 215 are respectively arranged on two sides of the guiding seat 21. Both the third sliding groove 214 and the fourth sliding groove 215 communicate with the pin conveying groove 211. The first end of the connecting rod 237 extends out of the guiding seat 21 from the third sliding groove 214, and the second end of the connecting rod 237 extends out of the guiding seat 21 from the fourth sliding groove 215, that is, the first end and the second end of the connecting rod 237 respectively extend out of the guiding seat 21. With such a design, the position of the pushing head 234 can be intuitively determined according to the position of the connecting rod 237, which is convenient for debugging the feeding and discharging assembly 23.

[0067] In other embodiments, the connecting rod 237 is not provided. First connecting portions (not shown in the figure) and second connecting portions (not shown in the figure) are respectively convexly provided on two sides of the pushing head 234. The first connecting portion is connected to the first chain 233, and the second connecting portion is connected to the second chain 236.

[0068] Please refer to Figure 7 and Figure 8As shown, exemplarily, in some embodiments, the guiding seat 21 includes a guiding base 216, a first cover 217 and a second cover 218. The guiding base 216 includes a main body portion 2161, a first U-shaped portion 2162 and a second U-shaped portion 2163. The main body portion 2161 is connected to the silo assembly 22. The first U-shaped portion 2162 and the second U-shaped portion 2163 are spaced apart and disposed on both sides of the top of the main body portion 2161. The pin conveying groove 211 is provided on the main body portion 2161. The first guiding groove 212 extends from the first U-shaped portion 2162 to the main body portion 2161. The second guiding groove 213 extends from the second U-shaped portion 2163 to the main body portion 2161. The pin feeding driving member 231 is mounted on the main body portion 2161, and the first output end of the pin feeding driving member 231 extends into the first U-shaped portion 2162, and the second output end of the pin feeding driving member 231 extends into the second U-shaped portion 2163. The first cover 217 is detachably connected to the first U-shaped portion 2162 and the main body portion 2161 respectively. The second cover 218 is detachably connected to the second U-shaped portion 2163 and the main body portion 2161 respectively. By reasonably setting the structure of the guiding seat 21, the center of gravity of the pin feeding assembly 23 can be reduced, and the installation of the pin feeding assembly 23 can be made more convenient.

[0069] Please refer to Figures 8 - 11As shown, exemplarily, in some embodiments, a pin inlet 219 communicating with the pin conveying groove 211 is provided on the guiding seat 21. The pin inlet 219 is adapted to the pin 700. When the pin 700 includes a head portion 701 and a pin body 702, and the diameter of the head portion 701 is greater than the diameter of the pin hole, the pin inlet 219 includes a first hole portion 2191 adapted to the head portion 701 and a second hole portion 2192 adapted to the pin body 702. The first hole portion 2191 is located above the second hole portion 2192, and the diameter of the first hole portion 2191 is greater than the diameter of the second hole portion 2192. The magazine assembly 22 includes a nail storage box 221, a first pusher 222, a first elastic member 223, and a ejector rod 224. The nail storage box 221 is connected to the guiding seat 21. The nail storage box 221 is provided with a nail groove 2211 and a third guiding groove 2212 communicating with the nail groove 2211. A first opening 2213 is provided at the top of the nail groove 2211, and a second opening 2214 is provided on the side of the nail groove 2211 facing the pin inlet 219. The second opening 2214 is directly opposite to the second hole portion 2192. The pins 700 are arranged in the nail groove 2211. One end of the nail groove 2211 facing the pin inlet 219 is the nail outlet position. The first pusher 222 is slidably connected to the nail storage box 221. The first elastic member 223 is elastically compressed between the first pusher 222 and the nail storage box 221. The ejector rod 224 is slidably disposed in the third guiding groove 2212, and the ejector rod 224 is located below the nail outlet position. Two sides of the ejector rod 224 are respectively connected to two sides of the connecting rod 237, or two sides of the ejector rod 224 are respectively connected to the first chain 233 and the second chain 236. By reasonably setting the structure of the magazine assembly 22, the automatic supply of the pins 700 can be satisfied, which is beneficial for the pin replenishing device to realize continuous pin replenishing operation.

[0070] It should be noted that when the pin feeding driving member 231 drives the first chain 233 and the second chain 236 to retract, the ejector rod 224 is driven to move towards the pin 700 until the ejector rod 224 lifts the pin 700 at the nail outlet position (i.e., the pin 700 close to the pin inlet 219) to the pin inlet 219. At the same time, under the elastic action of the first elastic member 223, the pins 700 arranged in the nail storage box 221 move towards the pin inlet 219, and push the pin 700 at the nail outlet position into the pin inlet 219 and the pin conveying groove 211. After the pin 700 enters the pin conveying groove 211, the pusher head 234 generates an adsorption force on the pin 700, and the pin 700 is adsorbed on the pusher head 234.

[0071] Specifically, the first elastic member 223 is a spring.

[0072] Optionally, in order to enable the ejector rod 224 to better complete the reset, or in order to limit the movement stroke of the ejector rod 224, a second tension spring (not shown in the figure) is connected between the ejector rod 224 and the rotating seat 11.

[0073] Optionally, both sides of the ejector rod 224 are respectively connected to both sides of the connecting rod 237 through connecting ropes (not shown in the figure), or both sides of the ejector rod 224 are respectively connected to the first chain 233 and the second chain 236 through connecting ropes (not shown in the figure).

[0074] Preferably, the bin assembly 22 further includes a gland 225. The gland 225 is detachably connected to the nail storage box 221. The gland 225 is used to press the pin 700 beside the nail outlet position. With this design, it can be avoided that the ejector rod 224 drives the pin 700 beside it to move when lifting the pin 700 at the nail outlet position to the pin inlet 219.

[0075] Preferably, the nail storage box 221 is further provided with an inlet hole 2215 communicating with the nail groove 2211. The inlet hole 2215 is an inclined hole, and the inlet hole 2215 extends from the top of the nail storage box 221 into the nail groove 2211. When placing the pin 700 in the nail groove 2211, the pin 700 can be slid into the nail groove 2211 along the position of the inlet hole 2215, making it more convenient to place the nails.

[0076] Preferably, the bin assembly 22 further includes a first guide rod 226 and a second guide rod 227 respectively arranged on both sides of the nail storage box 221. Both sides of the first push block 222 are respectively slidably connected to the first guide rod 226 and the second guide rod 227. First elastic members 223 are sleeved on both the first guide rod 226 and the second guide rod 227. By providing the first guide rod 226 and the second guide rod 227, the running stability of the gland 225 is higher.

[0077] Please refer to Figures 10 - 12As shown, in other embodiments, the pin feeding mechanism 20 adopts other structures. The pin feeding mechanism 20 includes a storage box 24, a pin pressing assembly 25, and a pin conveying assembly 26. The storage box 24 is provided with a storage groove 241. The front surface of the storage box 24 is provided with a fifth chute 242 and a feeding slot 243. The fifth chute 242 and the feeding slot 243 are respectively communicated with the storage groove 241. The storage groove 241 is provided with a discharging station, and the discharging station is arranged above the pin outlet hole 114. A plurality of pins 700 are arranged in the storage groove 241. The pressing assembly includes a second push block 251 and a second elastic member (not shown in the figure). The second push block 251 includes a push plate 2511 and an inverted L-shaped plate 2512 provided at the first end of the push plate 2511. The second end of the push plate 2511 is provided with a pressing portion 25111. The push plate 2511 is adapted to the fifth chute 242, and the pressing portion 25111 is slidably arranged in the storage groove 241. The inverted L-shaped plate 2512 is slidably connected to the back surface of the storage box 24, and the inverted L-shaped plate 2512 is connected to the storage box 24 through a second elastic member. The pin conveying assembly 26 is arranged above the storage box 24, and the movement path of the pin conveying assembly 26 passes through the discharging station, and is used for inserting the pin 700 into the pin hole of the pin shaft 300. By reasonably setting the structure of the pin feeding mechanism 20, the pin conveying assembly 26 is directly arranged above the pin conveying assembly 26, and the movement path of the pin conveying assembly 26 directly passes through the discharging station. After inserting the pin 700 into the pin hole of the pin shaft 300 and completing one pin feeding, the pressing assembly automatically pushes the pin 700 forward to the discharging station. The overall operation of the pin feeding mechanism 20 is more convenient, and the overall structure of the pin feeding mechanism 20 is more compact and more miniaturized.

[0078] Specifically, a guide rail seat 244 is arranged on the back surface of the storage box 24. The inverted L-shaped plate 2512 is provided with a guide rail 2513 adapted to the guide rail seat 244. The guide rail 2513 is slidably arranged on the guide rail seat 244. By setting the guide rail 2513 and the guide rail seat 244 to cooperate with each other, the second push block 251 runs more smoothly during the sliding process.

[0079] Specifically, the second elastic member is a tension spring.

[0080] When installing the pin 700, slide the second push block 251 to the edge of the non-discharging station of the storage groove 241. The second elastic member is stretched to put the pin 700 into the storage groove 241 from the feeding slot 243. After filling up, release the second push block 251. The second elastic member retracts, and the pressing portion 25111 of the second push block 251 automatically presses against the pin 700, causing the pin 700 to advance to the discharging station.

[0081] Preferably, the pin conveying assembly 26 includes a fixed seat 261, a pin driving member 262, a third sprocket 263 and a third chain (not shown in the figure). The fixed seat 261 is installed on the top of the storage box 24. A fourth guiding groove 2611 is provided on the fixed seat 261. The fourth guiding groove 2611 extends from the fixed seat 261 into the storage box 24 and is located at a position corresponding to the discharging station of the storage box 24. The fourth guiding groove 2611 communicates with the storage groove 241. The pin driving member 262 is installed on the fixed seat 261. The third sprocket 263 is connected to the output end of the pin driving member 262. The third chain is meshed with the third sprocket 263 for driving. The third chain is slidably arranged in the fourth guiding groove 2611. The pin conveying assembly 26 has a simple structure and high running stability. Moreover, the driving mode of the chain and sprocket enables the running path of the pin conveying assembly 26 to be bent, so that the center of gravity of the pin conveying assembly 26 can be reduced.

[0082] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An automatic tappet mechanism, characterized in that, It includes a positioning mechanism and a pin feeding mechanism. The positioning mechanism includes a rotating seat, a detection sensor and a rotation driving assembly. A first card slot adapted to a pin shaft and / or a second card slot cooperating with a pin shaft nut are provided at the front end of the rotating seat. An inlet pin hole and an outlet pin hole are radially provided on the rotating seat. The inlet pin hole and the outlet pin hole are symmetrically arranged about the axis of the rotating seat. The inlet pin hole communicates with the first card slot and / or the second card slot, and the outlet pin hole communicates with the first card slot and / or the second card slot. The detection sensor is arranged on the rotating seat. The rotation driving assembly is used to drive the rotating seat to rotate so that the detection sensor determines the position of the pin hole of the pin shaft, and is used to drive the rotating seat to rotate back by a preset angle so that the inlet pin hole is aligned with the pin hole. The pin feeding mechanism is installed on the rotating seat, and the outlet end of the pin feeding mechanism communicates with the inlet pin hole. The pin feeding mechanism is used to insert a pin into the pin hole of the pin shaft. The pin feeding mechanism includes a guiding seat, a magazine assembly and a pin feeding assembly. A pin conveying groove and a first guiding groove and a second guiding groove respectively communicating with the pin conveying groove are provided on the guiding seat. The outlet end of the pin conveying groove communicates with the pin feeding hole of the automatic pin feeding mechanism. The magazine assembly is connected to the guiding seat. The magazine assembly stores pins and is used to convey the pins into the pin conveying groove. The pin feeding assembly includes a pin feeding driving member, a first sprocket, a first chain, a second sprocket, a second chain and a pushing head. The pin feeding driving member is installed on the guiding seat. The first sprocket is connected to the first output end of the pin feeding driving member. The first chain is slidably arranged in the first guiding groove, and the first chain meshes with the first sprocket for transmission. The second sprocket is connected to the second output end of the pin feeding driving member. The second chain is slidably arranged in the second guiding groove, and the second chain meshes with the second sprocket for transmission. The two sides of the pushing head are respectively connected to the first chain and the second chain, and the pushing head is slidably arranged in the pin conveying groove. The pushing head is used for magnetically adsorbing the pin.

2. The automatic tappet mechanism according to claim 1, wherein The detection sensor includes a transmitter and a receiver. A first through hole and a second through hole are provided on the rotating seat. The first through hole and the second through hole are symmetrically arranged about the axis of the rotating seat. The transmitter is installed in the first through hole, and the receiver is installed in the second through hole.

3. The automatic tappet mechanism according to claim 1, characterized in that, The automatic pin feeding mechanism further includes a mounting seat. The mounting seat is provided with a mounting cavity. The rotation driving assembly includes a rotation driving member, a driving wheel and a gear shaft. The rotation driving member is installed on the mounting seat. The driving wheel is sleeved on the output end of the rotation driving member. The gear shaft is rotatably installed in the mounting cavity, and the gear shaft meshes with the driving wheel for transmission. The rotating seat is connected to the gear shaft.

4. The automatic tappet mechanism according to claim 3, wherein, A plurality of weight reduction holes are provided on the gear shaft.

5. The automatic tappet mechanism according to claim 3, characterized in that, The rotation driving assembly further includes a bearing and a locking nut. The bearing is installed on the gear shaft. The locking nut is threadedly connected to the gear shaft, and the locking nut is located outside the bearing and abuts against the bearing.

6. The automatic tappet mechanism according to claim 3, characterized in that The rotation drive assembly further includes a gear cover which is sleeved outside the driving wheel and the gear shaft, and the gear cover is detachably connected to the mounting seat.

7. The automatic tappet mechanism according to claim 1, characterized in that, A pin inlet communicating with the pin conveying groove is provided on the guiding seat. The pin inlet includes a first hole portion adapted to the end head portion of the pin and a second hole portion adapted to the pin body of the pin. The magazine assembly includes a nail storage box, a first push block, a first elastic member and a ejector rod. The nail storage box is connected to the guiding seat. The nail storage box is provided with a nail groove and a third guiding groove communicating with the nail groove. A first opening is provided at the top of the nail groove, and a second opening is provided on the side of the nail groove facing the pin inlet. The second opening is directly opposite to the second hole portion. Pins are arranged in the nail groove. The end of the nail groove facing the pin inlet is the nail outlet position. The first push block is slidably connected to the nail storage box. The first elastic member is elastically compressed between the first push block and the nail storage box. The ejector rod is slidably arranged in the third guiding groove, and the ejector rod is located below the nail outlet position. Both sides of the ejector rod are respectively connected to the first chain and the second chain.

8. The automatic tappet mechanism according to claim 1, characterized in that, The pin feeding mechanism includes a storage box, a pin pressing assembly and a pin conveying assembly. The storage box is provided with a storage groove. A fifth sliding groove and a feeding groove are provided on the front surface of the storage box. The fifth sliding groove and the feeding groove respectively communicate with the storage groove. The storage groove is provided with a discharging station which is located above the pin outlet hole. Multiple pins are arranged in the storage groove. The pressing assembly includes a second push block and a second elastic member. The second push block includes a push plate and an inverted L-shaped plate provided at the first end of the push plate. A pressing portion is provided at the second end of the push plate. The push plate is adapted to the fifth sliding groove, and the pressing portion is slidably arranged in the storage groove. The inverted L-shaped plate is slidably connected to the back surface of the storage box, and the inverted L-shaped plate is connected to the storage box through the second elastic member. The pin conveying assembly is arranged above the storage box, and the movement path of the pin conveying assembly passes through the discharging station. The pin conveying assembly is used for inserting a pin into the pin hole of a pin shaft.

9. The automatic tappet mechanism according to claim 8, wherein The pin conveying assembly includes a fixed seat, a pin driving member, a third sprocket and a third chain. The fixed seat is installed on the top of the storage box. A fourth guiding groove is provided on the fixed seat. The fourth guiding groove extends from the fixed seat into the storage box and is located at the position corresponding to the discharging station of the storage box. The fourth guiding groove communicates with the storage groove. The pin driving member is installed on the fixed seat. The third sprocket is connected to the output end of the pin driving member. The third chain is meshed with the third sprocket for transmission. The third chain is slidably arranged in the fourth guiding groove.

Images