A tightening device for a nail magazine

Abstract

The utility model relates to a tightening device of gun head can store nail relates to the technical field of tool technology of tightening fastener, including gun head assembly, gun head assembly includes gun head body, slider structure and feed sleeve, is provided with a recess on the gun head body, forms first passageway on one side of recess, forms second passageway and third passageway on the other side of recess, feed sleeve is connected with third passageway, slider structure includes slider body, forms the fourth passageway and fifth passageway of the slider body through the slider body, slider body can be slidably arranged in recess along the width direction of gun head body, so that slider body forms first position and second position in recess, in first position, first passageway communicates through fourth passageway with third passageway, in second position, first passageway communicates through fifth passageway with second passageway, the utility model changes the structure of upper nail, can store nail in gun head, reduces the beat, simultaneously will not rub the metal scrap with vacuum tube or batch head, guarantees clean.

Description

Technical Field

[0001] This utility model relates to the field of tools for tightening fasteners, and specifically to a tightening device with a nail-holding gun head. Background Technology

[0002] Traditionally, screw tightening involves manually holding the screw and using a tightening gun. With technological advancements, screws now enter the tightening gun head through a screw channel. For example, in the novel tightening gun head assembly disclosed in application number 2015208077834, the screw enters through the screw channel to the tightening gun outlet. A vacuum tube attracts the screw and ejects it from the head. Since the screw channel is typically located at the top and angled, it facilitates the screw's movement by gravity. Therefore, some head assemblies also include a swing arm. The screw remains positioned at the swing arm; when the vacuum tube moves forward, it collides with the swing arm, pushing it upward, causing the screw to fall. This swing arm design allows the screw to remain in place. The screws are stored in the swing arm and screw channel, preventing them from falling directly into the gun head channel and causing them to jam. However, this method has two drawbacks: the collision between the vacuum tube and the swing arm generates metal shavings; and the existing screw-tightening cycle is slow, requiring a pause in screw feeding during tightening until the screw is finished before continuing. Alternatively, screws can be tightened while being pushed, such as in swing arm-type gun heads. These gun heads require an external cylinder to drive the swing arm opening and closing, but this structure limits the overall gun head arrangement and is prone to screw jamming. The jamming is due to the cylinder's inability to achieve the required clearance for the swing arm opening and closing. Furthermore, when a screw in the feeding channel malfunctions, the machine must be stopped, the feed sleeve disassembled, the faulty screw removed, and the feed sleeve reinstalled. Since the feed sleeve is connected by multiple fasteners, disassembly and reassembly are inconvenient. Utility Model Content

[0003] This invention provides a tightening device with a nail-holding nozzle, which changes the structure of the nail, reduces the cycle time, and prevents the generation of metal shavings, thus ensuring cleanliness.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A screw-tightening device with a screw-holding nozzle includes a nozzle assembly comprising a nozzle body, a slider structure, and a feed sleeve. A groove is provided on the nozzle body, a first channel is formed on one side of the groove, and a second and third channel are formed on the other side of the groove. The feed sleeve is connected to the third channel. The slider structure includes a slider body, on which a fourth and fifth channel are formed. The slider body is slidably disposed within the groove along the width direction of the nozzle body, such that the slider body forms a first position and a second position within the groove. In the first position, the first channel communicates with the third channel through the fourth channel; in the second position, the first channel communicates with the second channel through the fifth channel.

[0006] Preferably, the slider structure further includes a base plate, which is fixed in the groove and has a groove formed thereon, and the slider body is slidably disposed in the groove of the base plate.

[0007] Preferably, a first connecting block is formed at the bottom of the slider body, a drive groove communicating with the slide groove is provided in the base plate, a first connecting shaft is fixedly connected to the first connecting block, the first connecting shaft is disposed in the slide groove, and both ends of the first connecting shaft extend into the two drive grooves respectively, and a drive connector is formed on the drive groove. By injecting drive fluid into the drive interface, the slider body is driven to move in the slide groove through the first connecting shaft.

[0008] Preferably, the slider structure further includes a first side plate and a second side plate, the first side plate and the second side plate being fixed to the base plate and located on both sides of the slider body, and proximity switches for sensing the position of the slider body are provided on the first side plate and the second side plate.

[0009] Preferably, the first, second, and fifth channels are arranged horizontally, while the third and fourth channels are arranged at an angle. On the end of the slider body facing the first channel, the center point of the end of the fourth and fifth channels that is displaced from this end face is located on the same plane as the axis of the first channel.

[0010] Preferably, the feed sleeve includes a sleeve body and a locking block. One end of the sleeve body extends into the third channel. The locking block is swayably mounted on the nozzle assembly. A first retaining ring is formed on the sleeve body. When the feed sleeve is mounted on the nozzle assembly, the locking block abuts against the first retaining ring from the side away from the nozzle body to prevent the sleeve body from coming out of the third channel.

[0011] Preferably, a locking block mounting groove is formed on the gun head body, and a first rotating shaft is provided on the locking block, so that the locking block can be oscillatingly mounted in the locking block mounting groove via the first rotating shaft.

[0012] Preferably, the feed sleeve further includes a first elastic element, which is disposed between the locking block and the gun head body, so as to store elastic energy when the locking block releases its locking of the sleeve body, and the release of the elastic energy causes the locking block to abut against the first retaining ring again.

[0013] Preferably, the screw-tightening device with a screw-holding head includes a screwdriver assembly, a drive assembly, a base, and a vacuum tube. The screwdriver assembly is fixed to the base via a first support. A second support is slidably mounted on the base. One end of the vacuum tube is fixed to the second support, and the other end extends movably along its own axis into a second channel of the screwdriver assembly. The screwdriver assembly includes a screwdriver body and a bit. The screwdriver body is mounted on a third support, which is slidably mounted on the base. One end of the bit is connected to the screwdriver body, and the other end extends movably along its own axis into the vacuum tube. The drive assembly includes a cap-recognition cylinder and a stroke cylinder. The cap-recognition cylinder and the stroke cylinder are fixedly mounted on the base and drive the third support to slide on the base.

[0014] Preferably, the cap-recognition cylinder and the stroke cylinder are symmetrically arranged on the base about the axis of the vacuum tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In summary, this application utilizes a slider structure within the gun head body to allow the gun head assembly to change the connectivity between multiple channels by switching the position of the slider body, thereby completing the screw-installation operation. This eliminates the need for a swing arm, alters the screw-installation structure, reduces cycle time, prevents the vacuum tube from colliding with the swing arm, eliminates metal shavings, and ensures a clean screw-installation process.

[0017] Furthermore, by setting a locking block inside the feed sleeve and configuring the sleeve body's installation method, the locking block can fix the sleeve body in place, and when replacing the sleeve body, the locking block can be moved to remove the sleeve body. This simplifies the replacement of the sleeve body and saves time and costs.

[0018] Furthermore, by arranging two cylinders side by side and placing them below the screwdriver body, the length and width of the screw-tightening device that can hold screws in the entire head can be shortened, reducing the space occupied by the device and reducing the accumulation of errors during movement, thus ensuring the accuracy when tightening screws.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 The diagram shown is a side view of the screw-tightening device with a nail-storing head provided in an embodiment of this utility model.

[0021] Figure 2 As shown Figure 1 A top view of the tightening device for storing nails in the center gun head.

[0022] Figure 3 As shown Figure 1 A side view of the tightening device for storing nails in the center gun head.

[0023] Figure 4 As shown Figure 1 A first-person view of the axonometric structure of the gun head assembly.

[0024] Figure 5 As shown Figure 1 A second-view axial side structural diagram of the gun head assembly.

[0025] Figure 6 As shown Figure 1 A schematic diagram of the axonal structure of the gun head assembly from a third-person perspective.

[0026] Figure 7 The diagram shown is an exploded view of the gun head body and the slider structure after omitting the side plates.

[0027] Figure 8 The diagram shown is a schematic diagram of the isometric structure of the slider assembly.

[0028] Figure 9 The diagram shown is an exploded view of the slider assembly.

[0029] Figure 10 As shown Figure 8 A schematic diagram of the axonal structure of the midsole plate.

[0030] Figure 11 As shown Figure 8 Schematic diagram of the cross-sectional structure of the midsole plate.

[0031] Figure 12 As shown Figure 8 A cross-sectional view of the combined structure of the base plate and the first connecting shaft assembly.

[0032] Figure 13 As shown Figure 8 A cross-sectional view of the combined structure of the base plate, slider body and first connecting shaft.

[0033] Figure 14 The diagram shown is a first-view axial side view of the slider body.

[0034] Figure 15 The diagram shown is a schematic diagram of the slider body from a second perspective.

[0035] Figure 16 The diagram shown is a first-view axial side view of the slider body and the base plate after they are combined.

[0036] Figure 17 The diagram shown is a second-view axial side view of the slider body and the base plate after they are combined.

[0037] Figure 18 The diagram shown is a schematic diagram of the axial structure of the first side plate.

[0038] Figure 19 The diagram shown is a schematic diagram of the axial structure of the second side plate.

[0039] Figure 20 The image shown is a first-view axial side structural diagram of the gun head body.

[0040] Figure 21 The image shown is a schematic diagram of the axonometric structure of the gun head from a second-view perspective.

[0041] Figure 22 The image shown is a schematic diagram of the axonometric structure of the gun head from a third-person perspective.

[0042] Figure 23 The diagram shown is a top view of the gun head assembly.

[0043] Figure 24 As shown Figure 23 Schematic diagram of the cross-sectional structure in the XXIV-XXIV direction.

[0044] Figure 25 The diagram shown is a schematic diagram of the axial structure of the feed sleeve.

[0045] Figure 26 As shown Figure 1 A first-view axial side structural diagram of the middle clamp assembly.

[0046] Figure 27The diagram shown is a second-view axial side view of the clamp assembly.

[0047] Figure 28 The diagram shown is a third-view axial side view of the clamp assembly.

[0048] Figure 29 As shown Figure 26 A first-view axial side structural diagram of the clamp mounting block.

[0049] Figure 30 The diagram shown is a second-view axial side view of the clamp mounting block.

[0050] Figure 31 As shown Figure 26 A first-view axial side structural diagram of the clamp mounting base.

[0051] Figure 32 The diagram shown is a second-view axial side view of the clamp mounting base.

[0052] Figure 33 As shown Figure 26 A schematic diagram of the shaft side structure after the middle clamp lock is connected to the cylinder.

[0053] Figure 34 As shown Figure 33 A schematic diagram of the axial structure of the clamp lock.

[0054] Figure 35 The diagram shown is a schematic of the axle side structure after the clamp mounting base and clamp lock are combined.

[0055] Figure 36 As shown Figure 26 A schematic diagram of the axial structure of the clamp body and the clamp lock after combination.

[0056] Figure 37 As shown Figure 26 A schematic diagram of the axial structure of the clamp body.

[0057] Figure 38 As shown Figure 1 A schematic diagram of the axial structure of the screw-tightening device with a screw-holding mechanism for the middle gun head, after removing the gun head assembly and clamp assembly.

[0058] Figure 39 As shown Figure 1 A schematic diagram of the axial structure of the screw-holding device with a screw-holding head after removing the screwdriver assembly.

[0059] Figure 40 As shown Figure 1 A schematic diagram of the axial structure of the screw-tightening device for storing nails in the center gun head after removing the first support and connecting block.

[0060] Figure 41 As shown Figure 40 A schematic diagram of the axial structure of the positioning bushing.

[0061] Figure 42 As shown Figure 40 A schematic diagram of the axial structure of the guide bushing.

[0062] Reference numerals: 10, Gun head assembly; 11, Gun head body; 111, Groove; 1111, First groove; 1112, Second groove; 112, First channel; 113, Second channel; 114, Third channel; 1141, First connecting hole; 1142, Second connecting hole; 115, Locking block mounting slot; 116, First elastic element; 12, Sliding block structure; 121, Base plate; 1211, Slide groove; 1212, Drive groove ; 1213, First connecting shaft; 1214, Drive interface; 1215, First sealing gasket; 122, Slider body; 1221, Fourth channel; 1222, Fifth channel; 1223, Side; 1224, First end face; 1225, Second end face; 1226, Top surface; 1227, Inclined surface; 1228, First connecting block; 1229, Position detection hole; 123, First side plate; 124, Second side plate; 12 5. Guide groove; 1251. Proximity switch; 1252. Proximity groove; 126. Positioning rod; 13. Feed sleeve; 131. Sleeve body; 1311. First retaining ring; 1312. Vent hole; 1313. Second retaining ring; 1314. Recess; 132. Locking block; 1321. Protrusion; 1322. First rotating shaft; 1323. Pressing part; 1331. First space; 1332. Second space; 20. Clamp assembly Components; 21. Power source; 22. Mounting base; 221. Clamp sliding groove; 222. Through groove; 23. Clamp lock; 231. Sliding groove; 24. Clamp body; 241. Second connecting shaft; 242. Clamping part; 25. Clamp mounting block; 251. Sixth channel; 252. Clamp mounting groove; 30. Screwdriver assembly; 31. Screwdriver body; 32. Screwdriver bit; 40. Drive assembly; 41. Cap-recognition cylinder; 42. Stroke cylinder; 43. Drive structure; 431. Second elastic element; 432. Guide post; 50. Base; 51. First support seat; 511. Limiting post; 52. Second support seat; 521. Guide channel; 522. Connecting block; 523. Vacuum connector; 53. Third support seat; 54. Fourth support seat; 61. Vacuum tube; 62. Positioning bushing; 63. O-ring; 64. Guide bushing; 65. Mounting connector. Detailed Implementation

[0063] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0064] This invention provides a tightening device with a nail-holding nozzle, which changes the structure of the nail, reduces the cycle time, and prevents the generation of metal shavings, thus ensuring cleanliness.

[0065] like Figures 1 to 3 As shown in the figure, this utility model discloses a tightening device, including a gun head assembly 10, a clamp assembly 20, a screwdriver assembly 30, a drive assembly 40, and a base 50. The gun head assembly 10 is fixed to the base 50 via a first support 51, preferably at one end of the base 50. The clamp assembly 20 is connected to the gun head assembly 10. A second support 52 is slidably disposed on the base 50, located at the end of the gun head assembly 10 away from the clamp assembly 20. A vacuum tube 61 is disposed between the second support 52 and the gun head assembly 10. A third support 53 is slidably disposed on the base 50. The screwdriver assembly 30 includes a screwdriver body 31 and a bit 32. The screwdriver body 31 is disposed on the third support 53, one end of the bit 32 is connected to the screwdriver body 31, and the other end can slidably extend into the vacuum tube 61 along its own axis. The drive assembly 40 includes a cap-recognition cylinder 41 and a stroke cylinder 42, which are fixedly mounted on the base 50, specifically on the fourth support seat 54 on the base 50. The first telescopic rod (not shown in the figure) on the cap-recognition cylinder 41 and the second telescopic rod (not shown in the figure) on the stroke cylinder 42 pass through the fourth support seat 54 and are connected to the third support seat 53, causing the third support seat 53 to slide along the base 50. The third support seat 53, in turn, causes the second support seat 52 to slide on the base 50.

[0066] like Figures 4 to 7 ,as well as Figures 20 to 22 As shown, the gun head assembly 10 includes a gun head body 11, a slider structure 12, and a feed sleeve 13 for the screw to enter the gun head body 11. A groove 111 is provided on the gun head body 11, and the slider structure 12 can move in the width direction of the device (i.e.,...). Figure 2The feed sleeve 13 is movably disposed within the groove 111 (vertically and horizontally), and is disposed on the nozzle body 11. The nozzle body 11 has a first channel 112, a second channel 113, and a third channel 114. The first channel 112 and the second channel 113 are horizontally disposed and respectively disposed on both sides of the groove 111. The first channel 112 connects the clamp assembly 20 and the groove 111, and the second channel 113 connects the groove 111 and the vacuum tube 61. The third channel 114 connects the feed sleeve 13 and the groove 111. Preferably, the first channel 112 and the second channel 113 are horizontally disposed, and the third channel 114 is inclined. In other words, the feed sleeve 13 is installed on the upper end of the third channel 114, that is, on the side of the third channel 114 away from the groove 111.

[0067] Please continue to refer to Figures 6 to 13 The slider structure 12 includes a base plate 121 and a slider body 122. The base plate 121 is fixed in the groove 111 of the gun head body 11. Along the width direction of the gun head body 11, i.e., on the base plate 121... Figure 2 A groove 1211 is formed in the vertical direction shown, and the slider body 122 is slidably disposed in the groove 1211 along the length direction of the groove 1211.

[0068] Please continue to refer to Figures 14 to 17 A fourth channel 1221 and a fifth channel 1222 are formed on the slider body 122. Both the fourth channel 1221 and the fifth channel 1222 penetrate the slider body 122. The slider body 122 moves along the width direction of the gun head assembly 10 on the base plate 121, so that the slider body 122 has a first position and a second position in the groove 11. In the first position, the first channel 112 is connected to the feed sleeve 13 through the fourth channel 1221 and the third channel 114; in the second position, the first channel 112 is connected to the vacuum tube 61 through the fifth channel 1222 and the second channel 113.

[0069] That is, by sliding the slider body 122 left and right, the first channel 112 in the gun head assembly 10 can be connected with different channels.

[0070] When feeding screws, the slider body 122 can be moved to the first position. At this time, the screws entering from the feed sleeve 13 can enter the first channel 112 through the third channel 114 and the fourth channel 1221 and be clamped by the clamping assembly 20. After the screws enter the first channel 112, the slider body 122 can be moved to the second position. At this time, the first channel 112 is connected to the second channel 113 through the fifth channel 1222 to form a channel for the vacuum tube 61 and the screwdriver bit 32 to pass through.

[0071] Furthermore, when the slider body 122 is in the second position, although the connection between the first channel 112 and the third channel 114 is interrupted, the third channel 114 is still connected to the feed sleeve 13. Therefore, new screws can still enter the third channel 114, which serves as a screw storage mechanism. When the slider body 122 is moved back to the first position, the screws stored in the third channel 114 will directly enter the first channel 112 through the fourth channel 1221, saving screw loading time and accelerating the production cycle.

[0072] With the above settings, the screw can be driven in by changing the position of the slider body 122. This eliminates the need for a swing arm, avoids the vacuum tube 61 colliding with the swing arm, prevents the generation of metal shavings, and ensures the cleanliness of the screw driving process.

[0073] Furthermore, to ensure that both the fourth channel 1221 and the fifth channel 1222 can communicate with the first channel 112 when the slider body 122 changes position, the line connecting the center points of the ends of the fourth channel 1221 and the fifth channel 1222 on the side of the slider body 122 facing the first channel 112 is a horizontal line. In other words, on this side, the center points of the ends of the fourth channel 1221 and the fifth channel 1222 are located on the same plane as the axis of the first channel 112.

[0074] Furthermore, the slider body 122 includes two vertical side surfaces 1223, a first end face 1224 facing the first channel 112, a second end face 1225 away from the first channel 112, and a top surface 1226. An upward inclined surface 1227 is also formed between the second end face 1225 and the top surface 1226. The fourth channel 1221 connects the upward inclined surface 1227 and the first end face 1224, and the fifth channel 1222 connects the first end face 1224 and the second end face 1225. The fourth channel 1221 is an inclined channel, and the fifth channel 1222 is a horizontal channel.

[0075] A position detection hole 1229 is also provided on the upper inclined surface 1227. A sensor can be installed in the position detection hole 1229 to detect whether the screw is in the fourth channel 1221 or the fifth channel 1222.

[0076] Furthermore, the slider structure 12 also includes a first side plate 123 and a second side plate 124, which are fixed to the base plate 121 and located on both sides of the slider body 11, respectively. The base plate 121, the first side plate 123, the second side plate 124, and the gun head body 11 together form a receiving space for accommodating the slider body 122 to prevent debris from entering the space.

[0077] Further, please continue to refer to Figures 10 to 15 A first connecting block 1228 is formed at the bottom of the slider body 122, and a drive groove 1212 and a first connecting shaft 1213 are provided in the base plate 121. The drive groove 1212 communicates with the slide groove 1211. The first connecting shaft 1213 can be fixed to the first connecting block 1228 by bolts or other fasteners, and both ends of the first connecting shaft 1213 extend into the two drive grooves 1212 respectively. A drive interface 1214 is formed on the drive groove 1212, which can be driven by a driving fluid, such as oil or gas, to push the first connecting shaft 1213, so that the first connecting shaft 1213 drives the slider body 122 to move in the slide groove 1211 through the first connecting block 1228.

[0078] In this embodiment, the movement of the first connecting shaft 1213 can be driven pneumatically. To ensure sealing performance during driving, a first sealing gasket 1215 is fitted on the portion of the first connecting shaft 1213 that extends into the drive groove 1212.

[0079] During driving, the drive slot 1212 can be vented through one drive interface 1214 and the drive slot 1212 can be evacuated to enable the first connecting shaft 1213 to move within the slide groove 1211. The first connecting shaft 1213 is connected to the slider body 122, and the slider body 122 can then complete the position change.

[0080] Furthermore, positioning rods 126 are installed on both sides of the slider body 122. Guide grooves 125 corresponding to the positioning rods 126 are formed on the first side plate 123 and the second side plate 124. The positioning rods 126 extend into the guide grooves 125 to guide the movement of the slider body 122. Through the cooperation between the positioning rods 126 and the guide grooves 125, and the cooperation between the first connecting shaft 1213 and the drive groove 1212, the slider body 122 can slide stably, ensuring accurate alignment between the various channels.

[0081] Furthermore, proximity switches 1251 for sensing the position of the slider body 122 are provided on both the first side plate 123 and the second side plate 124. When the proximity switch 1251 on the first side plate 123 or the second side plate 124 senses the corresponding positioning rod 126, it indicates that the position of the slider body 122 has been changed. At this time, the pump connected to the drive interface 1214 can stop working. This device can be used for nailing or subsequent tightening work.

[0082] Furthermore, both the first side plate 123 and the second side plate 124 are provided with proximity grooves 1252 that communicate with the guide groove 125, and the aforementioned proximity switch 1251 is disposed in the proximity groove 1252.

[0083] In this embodiment, on the end of the slider body 122 facing the first channel 112, the distance between the center points of the fourth channel 1221 and the fifth channel 1222 at the end of the end face is equal to the stroke of the slider body 122. Here, the stroke of the slider body 122 is the difference between the distance between the first side plate 123 and the second side plate 124 and the width of the slider body 122.

[0084] More specifically, the aforementioned cylinders, pump body, proximity switch 1251, and screwdriver body 31 can all be driven by a control device (not shown in the figure), such as a PLC. Using a PLC to receive signals and control the operation of related components is standard knowledge for tightening devices and will not be described in detail here.

[0085] Further, please continue to refer to point 7. Figures 20 to 22 As shown, the groove 111 includes a first groove 1111 and a second groove 1112 communicating with the first groove 1111. Compared to the first groove 1111, the second groove 1112 is located at the bottom of the gun head body 11. When the slider structure 12 is disposed in the groove 111, the base plate 121 is disposed in the second groove 1112, and the slider body 122 extends into the first groove 1111.

[0086] Please continue to refer to Figure 4 , Figures 22 to 25 The feed sleeve 13 includes a sleeve body 131 and a locking block 132. One end of the sleeve body 131 extends into the third channel 114 inside the nozzle body 11. The locking block 132 is pivotally mounted on the nozzle body 11. A first retaining ring 1311 is formed on the sleeve body 131. When the sleeve body 131 of the feed sleeve 13 is mounted on the nozzle body 11 of the nozzle assembly 10, the locking block 132 abuts against the first retaining ring 1311 from the side away from the nozzle body 11 to prevent the sleeve body 131 from dislodging from the third channel 114 of the nozzle body 11, that is, the locking block 132 locks the sleeve body 131.

[0087] With the above setup, when the sleeve body 131 needs to be replaced, the locking block 132 can be removed to unlock the sleeve body 131. At this point, the sleeve body 131 can be directly removed from the third channel 114 for replacement. When the sleeve body 131 is reinserted into the third channel 114, the locking block 132 can be pressed against the first retaining ring 1311 again. The sleeve body 131 can no longer be removed from the third channel 114, thus securing the sleeve body 131. This simplifies the replacement of the sleeve body 131, saving time and costs.

[0088] Preferably, when the sleeve body 131 is installed in the third channel 114, the first retaining ring 1311 is flush with the end face of the third channel 114 away from the groove 111. When the locking block 132 locks the sleeve body 131, at least a portion of the locking block 132 will coincide with the third channel 114 when viewed along the axial direction of the sleeve body 131. Through the above arrangement, it can be ensured that the sleeve body 131 is stably installed on the gun head body 11.

[0089] Preferably, the end of the locking block 132 that contacts the first retaining ring 1311 protrudes in the direction of the axis of the sleeve body 131 to form a protrusion 1321. The protrusion 1321 abuts against the first retaining ring 1311 to lock the sleeve body 131.

[0090] Furthermore, in this embodiment, a locking block mounting groove 115 is formed on the gun head body 11, and a first rotating shaft 1322 is provided on the locking block 132. The locking block 132 is swayably mounted in the locking block mounting groove 115 via the first rotating shaft 1322. Specifically, the locking block mounting groove 115 can be located at the top of the gun head body 11, and the locking block 132 can be swayably mounted in the locking block mounting groove 115 via the first rotating shaft 1322. When the end of the locking block 132 away from the first retaining ring 1311 is pressed down, the end of the locking block 132 abutting against the first retaining ring 1311 can be lifted up to unlock the sleeve body 131, and the sleeve body 131 can be smoothly removed from the third channel 114.

[0091] Furthermore, the feed sleeve 13 also includes a first elastic element 116, which is disposed between the locking block 132 and the nozzle body 11. The first elastic element 116 stores elastic energy when the locking block 132 releases its lock on the sleeve body 131. The release of this elastic energy allows the locking block 132 to re-abut against the first retaining ring 1311. That is, the first elastic element 116 ensures that after the external force acting on the locking block 132 is released, the locking block 132 re-abuts against the first retaining ring 1311, thus ensuring that the locking block 132 can stably lock the sleeve body 131.

[0092] Preferably, the first elastic element 116 is located at the end of the locking block 132 away from the first retaining ring 1311. In other words, the first elastic element 116 and the first retaining ring 1311 are located on both sides of the first rotating shaft 1322, respectively. A pressing part 1323 is also provided on the locking block 132, and the pressing part 1323 and the first retaining ring 1311 are located on both sides of the first rotating shaft 1322, so as to apply pressure to the locking block 132, thereby releasing the locking block 132 from locking the sleeve body 131.

[0093] Further, please continue to refer to Figure 22The gun head body 11 has a first connecting hole 1141 and a second connecting hole 1142 that communicate with the third channel 114 and are used for airflow. Along the screw's upward direction, the second connecting hole 1142 is located downstream of the first connecting hole 1141. A vent hole 1312 is provided on the sleeve body 131.

[0094] During feeding, air can be drawn into the third channel 114 through the second connecting hole 1142. Since the screws themselves may contain dust, air can be drawn through the second connecting hole 1142 during feeding to remove dust from the screws through the vent hole 1312 without affecting the screw's mounting. It should be noted that at this time, the first connecting hole 1141 can function as a convection vent for the second connecting hole 1142; that is, when air is drawn through the second connecting hole 1142, external airflow can pass through the first connecting hole 1141 to ensure smooth airflow.

[0095] In other embodiments, airflow can also be actively injected into the first connecting hole 1141. When actively injecting airflow into the first connecting hole 1141, the position of the screw within the third channel 114 needs to be considered. When the screw has fallen to the bottom of the third channel 114, airflow can be injected into it through the first connecting hole 1141. On the one hand, the injection of airflow can blow out the dust on the screw; on the other hand, the injection of airflow can also prevent the screw from re-pulling out of the end of the sleeve body 131 away from the gun head body 11.

[0096] It should be noted that the position of the screw within the third channel 114 can be determined by the proximity switches 1251 on the first side plate 123 and the second side plate 124, that is, by the position of the slider body 122. When the slider body 122 is in the second position and there is a screw in the third channel 114, or when the slider body 122 has just switched from the second position to the first position, air can be blown through the first connecting hole 1141 to ensure the smooth installation of the screw.

[0097] Furthermore, a second retaining ring 1313 is formed on the sleeve body 131. When the sleeve body 131 extends into the third channel 114, a sealed first space 1331 is formed by the sleeve body 131, the first retaining ring 1311, the second retaining ring 1313, and the inner wall of the third channel 114. The first connecting hole 1141 communicates with the first space 1331, and a portion of the vent hole 1312 is formed on the sleeve body 131 at the location of the first space 1331.

[0098] A recess 1314 is formed on the outer side wall of the sleeve body 131. When the sleeve body 131 extends into the third channel 114, the recess 1314 and the inner side wall of the third channel 114 form a sealed second space 1332. The second connecting hole 1142 communicates with the second space 1332, and another vent hole 1312 is formed on the sleeve body 131 at the location of the second space 1332.

[0099] It should be noted that, in this embodiment, the term "sealed" means that, except for the vent 1312, the first space 1331 is not connected to the second space 1332. By configuring the first space 1331 and the second space 1332, the airflow direction can be optimized, achieving a better dust removal effect.

[0100] Please continue to refer to Figures 26 to 37 The clamp assembly 20 includes a power source 21, a mounting base 22, a clamp lock 23, a clamp body 24, and a clamp mounting block 25. The clamp mounting block 25 can be fixed to the gun head body 11. The clamp lock 23 is slidably disposed within the mounting base 22. There are two clamp bodies 24, each of which is swayably disposed on the clamp mounting block 25. The clamp lock 23 has an elongated sliding groove 231, which forms a non-zero angle with the sliding direction of the clamp lock 23 on the mounting base 22. The clamp mounting block 25 has a sixth channel 251 corresponding to the first channel 112. The clamp body 24 extends into the sliding groove 231 via a second connecting shaft 241, allowing the second connecting shaft 241 to slide within the sliding groove 231. The power source 21 drives the clamp lock 23 to slide within the mounting base 22, and through the sliding groove 231, it drives the two clamp bodies 24 to swing relative to the clamp mounting block 25, so as to switch between the open and clamping positions.

[0101] When the screw enters the clamp assembly 20 through the first channel 112, the power source 21 drives the clamp lock 23 to slide within the mounting base 22. Because the sliding groove 231 on the clamp lock 23 forms an angle with the sliding direction of the clamp lock 23, the sliding groove 231 drives the second connecting shaft 241 to move during the movement of the clamp lock 23, thereby changing the position of the second connecting shaft 241. This change in position of the second connecting shaft 241, in turn, causes the clamp body 24 to swing relative to the clamp mounting block 25, thereby changing the distance between the two clamp bodies 24 to clamp or release the screw.

[0102] Furthermore, the two sliding grooves 231 are arranged symmetrically, and the clamp lock 23 moves along the straight line of the axis of symmetry of the two sliding grooves 231 within the mounting base 22.

[0103] Furthermore, the mounting base 22 is provided with a clamp sliding groove 221 and a through groove 222, and the clamp lock 23 is slidably disposed in the clamp sliding groove 221. The power source 21 can be a cylinder, which is fixed on the mounting base 22, and the output end of the cylinder passes through the through groove 222 and is connected to the clamp lock 23.

[0104] The clamp mounting block 25 is directly fixed to the end of the gun head body 11 away from the sleeve body 131. Clamp mounting grooves 252 are provided on both sides of the clamp mounting block 25, and the clamp body 24 is swayably mounted in the clamp mounting grooves 252 by means of a hinge pin.

[0105] Two opposing clamping parts 242 are also provided on the clamp body 24 to clamp the screw when the clamp assembly 20 is closed.

[0106] Please continue to refer to Figures 1 to 3 ,as well as Figures 38 to 42 In this embodiment, the cap-recognition cylinder 41 and the stroke cylinder 42 are arranged side-by-side on the fourth support base 54 along the width direction of the device and are located below the screwdriver body 31. By arranging the two cylinders side-by-side, and having them pass through the fourth support base and connect to the third support base, the length of the entire tightening device can be shortened (i.e.,...). Figure 2 The distance in the left and right directions reduces the space occupied by the device. Furthermore, since the two cylinders are located below the screwdriver body 31, the cap-receiving cylinder 41, the stroke cylinder 42, and the screwdriver body 31 are arranged in a triangular pattern when viewed from the end face of the device, which further shortens the width of the entire tightening device (i.e., the distance in the left and right directions). Figure 2 (The distance in the vertical direction) further reduces the space occupied by the device.

[0107] Furthermore, along the axial direction of the vacuum tube 61, the cap-recognizing cylinder 41 and the stroke cylinder 42 are symmetrically arranged on the fourth support base 54 about the vertical plane of the axis of the vacuum tube 61. It should be explained that the aforementioned symmetry refers to the symmetry in the width direction (i.e.,...). Figure 2 (Up and down direction), the distance from the fixed point of the cap-recognizing cylinder 41 on the fourth support 54 to the vertical plane where the axis of the vacuum tube 61 is located, and the distance from the fixed point of the stroke cylinder 42 on the fourth support 54 to the vertical plane where the axis of the vacuum tube 61 is located.

[0108] A drive structure 43 is provided between the third support 53 and the second support 52. When the cap-recognition cylinder 41 and / or the stroke cylinder 42 push the third support 53, the third support 53 drives the second support 52 to move in the direction of the gun head assembly 10, that is, in the direction of the first support 51, through the drive structure 43.

[0109] In this embodiment, the drive structure 43 may include a second elastic element 431, such as a spring, which is disposed between the second support 52 and the third support 53.

[0110] One end of the vacuum tube 61 is fixed to the second support base 52, and the other end can slide along its own axis into the gun head assembly 10, specifically into the second channel 113 of the gun head body 11. One end of the screwdriver bit 32 is connected to the screwdriver body 31, and the other end can move along its own axis from the end of the vacuum tube 61 away from the gun head assembly 10 into the vacuum tube 61.

[0111] After the clamping assembly 20 has finished clamping the screw, the screw capping and tightening operations can be performed. Specifically, the capping cylinder 41 can be activated first, which pushes the third support seat 53 to move via the first telescopic rod of the capping cylinder 41. The third support seat 53 drives the second support seat 52 to move via the second elastic element 431. At this time, the second elastic element 431 is not compressed, or its compression is negligible. The screwdriver body 31, the bit 32, and the vacuum tube 61 can move synchronously. The second support seat 52 drives the vacuum tube 61 to pass sequentially through the second channel 113, the fifth channel 1222, and the first channel 112 (at this time, the slider body 122 is in the second position). Then, the vacuum device connected to the vacuum tube 61 can be activated to evacuate the vacuum tube 61, thereby attracting the screw to the end of the vacuum tube 61 that extends into the nozzle assembly 10.

[0112] The cap-recognition cylinder 41 continues to work, driving the third support seat 53 to continue moving forward. At the same time, the clamp assembly 20 releases its grip on the screw, the vacuum tube 61 drives the screw to extend, and places the screw in the position corresponding to the screw hole to be tightened.

[0113] Once the vacuum tube 61 has driven the screw into position, the cap-setting cylinder 41 stops working, and the stroke cylinder 42 starts working, continuing to push the third support seat 53 toward the second support seat 52. At this time, since the second support seat 52 abuts against the first support seat 51, the second extension rod of the stroke cylinder 42 will only drive the third support seat 53 to the position of the head body 11, and the second elastic element 431 will be compressed. Correspondingly, the screwdriver bit 32 will move inside the vacuum tube 61. When the end of the screwdriver bit 32 that extends into the vacuum tube 61 contacts the screw, the screwdriver body 31 starts, driving the screwdriver bit 32 to rotate, thus completing the tightening of the screw.

[0114] After the entire cap recognition and tightening process is completed, the cap recognition cylinder 41, stroke cylinder 42, second support seat 52 and third support seat 53 are reset, and the next operation begins.

[0115] In other words, in this embodiment, both the cap-recognition cylinder 41 and the stroke cylinder 42 apply power to the same structure, namely the third support 53, to complete the cap recognition and tightening process. Errors in the stroke of the cap-recognition cylinder 41 on the third support 53 will not accumulate in the movement of the stroke cylinder 42. This driving method can more accurately control the stroke of each structure, preventing the accumulation of errors.

[0116] In this embodiment, to more accurately move the screw to the position corresponding to the screw hole to be tightened via the vacuum tube 61, a limiting post 511 is provided on the first support 51. One end of the limiting post 511 is connected to the first support 51, and the other end extends in the direction of the second support 52. By adjusting the length of the limiting post 511, the stroke of the vacuum tube 61 can be controlled. When the second support 52 abuts against the end face of the limiting post 511, it means that the position of the screw corresponds to the position of the screw hole to be tightened.

[0117] In other embodiments, the entire tightening device position can be fixed, and the position between the first support 51 and the second support 52 can be defined. When the second support 52 abuts against the first support 51 during movement, the vacuum tube 61 can drive the screw to a position corresponding to the screw hole to be tightened, so as to accurately position the screw.

[0118] To facilitate the resetting of the above-mentioned structures, in this embodiment, the end of the first telescopic rod of the cap-recognition cylinder 41 facing the third support seat 53 or the end of the second telescopic rod of the stroke cylinder 42 facing the third support seat 53 is fixedly connected to the third support seat 53.

[0119] In this embodiment, the end of the second telescopic rod of the stroke cylinder 42 facing the third support base 53 is fixedly connected to the third support base 53. That is, the reset of the second telescopic rod will drive the third support base 53 to reset, and then drive the second support base 52, the bit 32, and the vacuum tube 61 to reset. After the cap-recognition cylinder 41 moves to its position and the stroke cylinder 42 starts working, the first telescopic rod of the cap-recognition cylinder 41 can disengage from the third support base 53. After the stroke cylinder 42 resets, the cap-recognition cylinder 41 rests against the third support base 53 again.

[0120] Furthermore, a guide post 432 is provided between the third support 53 and the second support 52. A second elastic element 431 is sleeved on the guide post 432, and a guide channel 521 is formed on the second support 52. One end of the guide post 432 is fixed to the third support 53, and the other end can extend into the guide channel 521 along its own axis. When the second support 52 abuts against the first support 51 and the third support 53 continues to move, the guide post 432 can move within the guide channel 521 to prevent relative wobbling between the third support 53 and the second support 52, so that the screwdriver bit 32 can tighten the screw more accurately.

[0121] Further, please continue to refer to Figures 40 to 42 A positioning bushing 62 is provided on the second support base 52, and one end of the vacuum tube 61 facing the second support base 52 is fixed to the second support base 52 through the positioning bushing 62. An O-ring 63 is also fitted on the outer surface of the positioning bushing 62. In this embodiment, one O-ring 63 can be provided on the positioning bushing 62.

[0122] A guide bushing 64 is provided on the first support base 51. The guide bushing 64 is fixedly installed in the mounting joint 65, which is fixed to the first support base 51 and extends into the head body 11 of the head assembly 10. The end of the vacuum tube 61 facing the first support base 51 can extend into the guide bushing 64 along its own axis. An O-ring 63 is also provided on the outer surface of the guide bushing 64. In this embodiment, two O-rings 63 can be provided on the guide bushing 64.

[0123] The design of the positioning bushing 62, guide bushing 64, and O-ring 63 allows the vacuum tube 61 to float. In actual production, due to the relatively long lengths of both the vacuum tube 61 and the screwdriver bit 32, vibrations occur during the operation of the cap-receiving cylinder 41 and the stroke cylinder 42. Combined with its own gravity, the screwdriver bit 32 will wobble. This wobble causes deviations between the vacuum tube 61 and the screw hole to be tightened, as well as between the screw and the screw hole, affecting the accuracy of screw tightening. The floating design allows the floating of the vacuum tube 61 to compensate for the deviation between the screw center and the screw hole center. When the axis of the vacuum tube 61 shifts, the positioning bushing 62 and guide bushing 64 also move accordingly, and the O-ring 63 deforms, thereby restoring the vacuum tube 61 to its original position.

[0124] A connecting block 522 is also provided on the second support 52, and a positioning bushing 62 is installed inside the connecting block 522. A vacuum connector 523 connected to the vacuum tube 61 is also provided on the connecting block 522.

[0125] In summary, in this application, by setting the slider structure 12 within the gun head body 11, the gun head assembly 10 can change the communication state between multiple channels within the gun head assembly 10 by switching the position of the slider body 122, thereby completing the screw-driving operation. This eliminates the need for a swing arm, changes the screw-driving structure, reduces cycle time, prevents the vacuum tube 61 from colliding with the swing arm, avoids the generation of metal shavings, and ensures cleanliness during the screw-driving process.

[0126] Furthermore, by setting the locking block 132 inside the feed sleeve 13 and the installation method of the sleeve body 131, the locking block 132 can fix the sleeve body 131, and when replacing the sleeve body 131, the locking block 132 can be moved to remove the sleeve body 131. This makes replacing the sleeve body 131 relatively simple, saves time and costs, and improves production efficiency.

[0127] Furthermore, by arranging the two cylinders side by side below the screwdriver body 31, the length and width of the entire tightening device can be shortened, reducing the space occupied by the device. The movement of the second support 52, the third support 53, and the drive assembly 40 reduces the accumulation of errors during movement, ensuring accuracy when tightening screws.

[0128] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A screw-tightening device with a screw-holding nozzle, characterized in that: The device includes a gun head assembly, comprising a gun head body, a slider structure, and a feed sleeve. A groove is provided on the gun head body, a first channel is formed on one side of the groove, and a second and third channel are formed on the other side of the groove. The feed sleeve is connected to the third channel. The slider structure includes a slider body, on which a fourth and fifth channel are formed. The slider body is slidably disposed within the groove along the width direction of the gun head body, such that the slider body forms a first position and a second position within the groove. In the first position, the first channel communicates with the third channel through the fourth channel; in the second position, the first channel communicates with the second channel through the fifth channel.

2. The tightening device for storing nails in a gun head according to claim 1, characterized in that: The slider structure also includes a base plate, which is fixed in the groove and has a sliding groove formed thereon. The slider body is slidably disposed in the sliding groove of the base plate.

3. A tightening device for storing nails in a gun head according to claim 2, characterized in that: A first connecting block is formed at the bottom of the slider body. A drive groove communicating with the slide is provided in the base plate. A first connecting shaft is fixedly connected to the first connecting block. The first connecting shaft is disposed in the slide and its two ends extend into the two drive grooves respectively. A drive interface is formed on the drive groove. By injecting drive fluid into the drive interface, the slider body is driven to move in the slide groove through the first connecting shaft.

4. A screw-tightening device with a nail-holding head according to claim 3, characterized in that: The slider structure further includes a first side plate and a second side plate, which are fixed to the base plate and located on both sides of the slider body, respectively. Proximity switches for sensing the position of the slider body are provided on the first side plate and the second side plate.

5. A tightening device for storing nails at the gun head according to claim 1, characterized in that: The first, second, and fifth channels are horizontally arranged, while the third and fourth channels are inclined. At the end of the slider body facing the first channel, the center point of the end of the fourth and fifth channels is on the same plane as the axis of the first channel.

6. A screw-tightening device with a nail-holding head according to claim 1, characterized in that: The feed sleeve includes a sleeve body and a locking block. One end of the sleeve body extends into the third channel. The locking block is swayably mounted on the nozzle assembly. A first retaining ring is formed on the sleeve body. When the feed sleeve is mounted on the nozzle assembly, the locking block abuts against the first retaining ring from the side away from the nozzle body to prevent the sleeve body from coming out of the third channel.

7. A screw-tightening device with a nail-holding nozzle according to claim 6, characterized in that: A locking block mounting groove is formed on the gun head body, and a first rotating shaft is provided on the locking block. The locking block is oscillatingly mounted in the locking block mounting groove via the first rotating shaft.

8. A screw-tightening device with a nail-holding head according to claim 7, characterized in that: The feed sleeve also includes a first elastic element, which is disposed between the locking block and the gun head body to store elastic energy when the locking block releases its lock on the sleeve body. The release of the elastic energy causes the locking block to abut against the first retaining ring again.

9. A screw-tightening device with a nail-holding head according to claim 1, characterized in that: The screw-tightening device with a screw-holding head includes a screwdriver assembly, a drive assembly, a base, and a vacuum tube. The screwdriver assembly is fixed to the base via a first support. A second support is slidably mounted on the base. One end of the vacuum tube is fixed to the second support, and the other end extends into a second channel of the screwdriver assembly, movable along its own axis. The screwdriver assembly includes a screwdriver body and a bit. The screwdriver body is mounted on a third support, which is slidably mounted on the base. One end of the bit is connected to the screwdriver body, and the other end extends into the vacuum tube, movable along its own axis. The drive assembly includes a cap-recognition cylinder and a stroke cylinder. The cap-recognition cylinder and the stroke cylinder are fixed to the base and drive the third support to slide on the base.

10. A screw-tightening device with a nail-holding head according to claim 9, characterized in that: Along the axial direction of the vacuum tube, the cap-recognition cylinder and the stroke cylinder are symmetrically arranged on the base about the axis of the vacuum tube.

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