A tightening device with a gun head capable of storing nails

Abstract

A tightening device capable of storing nails in a gun head relates to the technical field of tools for tightening fasteners, and comprises a gun head assembly, wherein the gun head assembly comprises a gun head body, a slider structure and a feed sleeve, wherein a groove is arranged on the gun head body, a first channel is formed on one side of the groove, and a second channel and a third channel are formed on the other side of the groove; the feed sleeve is connected to the third channel; the slider structure comprises a slider body, and a fourth channel and a fifth channel penetrating the slider body are formed on the slider body; the slider body can be slidably arranged in the groove along the width direction of the gun head body, so that the slider body forms a first position and a second position in the groove, wherein in the first position, the first channel is connected to the third channel through the fourth channel, and in the second position, the first channel is connected to the second channel through the fifth channel. The present invention changes the structure of the nail, and can store nails in the gun head, thereby reducing the beat, and at the same time, will not generate metal shavings by friction with a vacuum tube or a screwdriver head, thereby ensuring cleanliness.

Description

Technical Field

[0001] The invention relates to the technical field of tools for tightening fasteners, and in particular to a tightening device with a gun head capable of storing nails. Background Art

[0002] The traditional method of tightening screws is to hold the screws by hand and tighten them with a tightening gun. Later, with the advancement of technology, the screws entered the gun head of the tightening gun through the screw channel, such as the new tightening gun head assembly disclosed in Application No. 2015208077834. The screws entered the outlet of the tightening gun from the screw channel, and the vacuum tube adsorbed the screws and sent them out of the gun head. Since the screw channel is generally located at the upper end and is tilted, it is convenient for the screws to move by gravity. Therefore, some gun head assemblies are also provided with a swing arm, and the screws are always located at the swing arm. When the vacuum tube moves forward, it collides with the swing arm and pushes the swing arm upward, so that the screws fall. The setting of the swing arm allows the screws to be always there. The metal is stored in the swing arm and the screw channel, and will not fall directly from the screw channel to the channel in the gun head, thus preventing the screw from getting stuck. However, this method also has two disadvantages: the collision between the vacuum tube and the swing arm will produce metal shavings. At the same time, the existing nailing rhythm is slow. When tightening the screws, it is necessary to stop nailing in the screw channel and continue to screw after the screwing is completed. There are also methods of tightening the screws while pushing the screws, such as the swing arm gun head. This gun head needs to be equipped with a cylinder on the outside to drive the swing arm to open and close, but this structure has restrictions on the overall gun head layout requirements, and is easy to get stuck. The reason for the easy screw jam is that the clearance of the swing arm driven by the cylinder cannot meet the requirements. In addition, when there is a problem with the screw in the nailing channel, it is necessary to stop the machine and disassemble the feed sleeve, eliminate the faulty screw, and then install the feed sleeve. Since the feed sleeves are connected by multiple fasteners, it is inconvenient to disassemble and assemble. Summary of the invention

[0003] The invention provides a tightening device with a gun head capable of storing nails, which changes the nailing structure and reduces the beat, and at the same time does not generate metal chips and ensures cleanliness.

[0004] To achieve the above object, the present invention provides the following technical solutions: A tightening device with a gun head capable of storing nails, comprises a gun head assembly, wherein the gun head assembly comprises a gun head body, a slider structure and a feed sleeve, wherein a groove is arranged on the gun head body, a first channel is formed on one side of the groove, and a second channel and a third channel are formed on the other side of the groove; the feed sleeve is connected to the third channel; the slider structure comprises a slider body, a fourth channel and a fifth channel penetrating the slider body are formed on the slider body; the slider body can be slidably arranged in the groove along the width direction of the gun head body, so that the slider body forms a first position and a second position in the groove, wherein in the first position, the first channel is connected to the third channel through the fourth channel, and in the second position, the first channel is connected to the second channel through the fifth channel.

[0005] Preferably, the slider structure further comprises a bottom plate, the bottom plate is fixed in the groove, a slide groove is formed on the bottom plate, and the slider body is slidably disposed in the slide groove of the bottom plate.

[0006] Preferably, a first connecting block is formed at the bottom of the slider body, a driving groove connected to the slide groove is arranged in the bottom plate, a first connecting shaft is fixedly connected to the first connecting block, the first connecting shaft is arranged in the slide groove, and the two ends of the first connecting shaft respectively extend into the two driving grooves, and a driving joint is formed on the driving groove, and the slider body is driven to move in the slide groove through the first connecting shaft by injecting a driving fluid into the driving interface.

[0007] Preferably, the slider structure also includes a first side plate and a second side plate, the first side plate and the second side plate are fixed to the bottom plate and are respectively located on both sides of the slider body, and proximity switches for sensing the position of the slider body are arranged on the first side plate and the second side plate.

[0008] Preferably, the first channel, the second channel and the fifth channel are arranged horizontally, the third channel and the fourth channel are arranged obliquely, and at one end of the slider body facing the first channel, the center points of the ends of the end faces of the fourth channel and the fifth channel that are displaced are located in the same plane as the axis of the first channel.

[0009] 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 swingably mounted on the gun head assembly, and a first retaining ring is formed on the sleeve body. When the feed sleeve is installed on the gun head assembly, the locking block abuts against the first retaining ring from the side of the first retaining ring away from the gun head body to prevent the sleeve body from escaping from the third channel.

[0010] Preferably, a locking block installation groove is formed on the gun head body, a first rotating shaft is provided on the locking block, and the locking block is swingably arranged in the locking block installation groove through the first rotating shaft.

[0011] Preferably, the feed sleeve also includes a first elastic member, which is arranged between the locking block and the gun head body to store elastic energy when the locking block cancels the lock on the sleeve body, and the release of the elastic energy causes the locking block to rest against the first retaining ring again.

[0012] Preferably, the tightening device for storing nails in the gun head comprises a screwdriver assembly, a driving assembly, a base and a vacuum tube, the gun head assembly is fixed to the base through the first supporting seat, and a second supporting seat is slidably arranged on the base, one end of the vacuum tube is fixed to the second supporting seat, and the other end can be movably extended along its own axis into the second channel of the gun head assembly; the screwdriver assembly comprises a screwdriver body and a bit, the screwdriver body is arranged on a third supporting seat, the third supporting seat is slidably arranged on the base, one end of the bit is connected to the screwdriver body, and the other end can be movably extended along its own axis into the vacuum tube; the driving assembly comprises a cap recognition cylinder and a stroke cylinder, the cap recognition cylinder and the stroke cylinder are fixedly arranged on the base, and drive the third support seat to slide on the base.

[0013] Preferably, 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.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In summary, in the present application, the slider structure is arranged in the gun head body so that the gun head assembly can change the connection state between multiple channels in the gun head assembly by switching the position of the slider body, and then complete the screw driving operation. This eliminates the setting of the swing arm, changes the structure of the screw driving, reduces the beat, avoids the vacuum tube colliding with the swing arm, does not generate metal chips, and ensures the cleanliness of the screw driving link.

[0015] Furthermore, by setting the locking block in the feed sleeve and the setting of the installation method of the sleeve body, the locking block can fix the sleeve body, and when the sleeve body is replaced, the locking block can be moved to remove the sleeve body. This can make it easier to replace the sleeve body and save time and cost.

[0016] Furthermore, by arranging two cylinders in parallel and locating them below the screwdriver body, the length and width of the entire gun head nail-storing tightening device can be shortened, the space occupied by the device can be reduced, and the error accumulation generated during movement can be reduced, thereby ensuring the accuracy when tightening the screws.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a schematic diagram of the axial structure of a tightening device with a gun head capable of storing nails provided in an embodiment of the present invention.

[0019] Figure 2 Shown Figure 1 A schematic top view of the structure of a tightening device with a gun head capable of storing nails.

[0020] Figure 3 Shown Figure 1 A schematic diagram of the side view of the structure of a tightening device with a nail storage in the gun head.

[0021] Figure 4 Shown Figure 1 Axial structural diagram of the gun head assembly from the first perspective.

[0022] Figure 5 Shown Figure 1 Axial structural diagram of the gun head assembly from the second perspective.

[0023] Figure 6 Shown Figure 1 Axial structural diagram of the gun head assembly from a third-person perspective.

[0024] Figure 7 The figure shows the exploded structural diagram of the gun head body and the slider structure after omitting the side plate.

[0025] Figure 8 Shown is a schematic diagram of the shaft side structure of the slider assembly.

[0026] Fig. 9 Shown is an exploded schematic diagram of the slider assembly.

[0027] Fig.10 Shown Figure 8 Schematic diagram of the axial structure of the midsole plate.

[0028] Fig.11 Shown Figure 8 Schematic diagram of the cross-sectional structure of the midsole plate.

[0029] Fig.12 Shown Figure 8 Schematic diagram of the combined cross-sectional structure of the midsole plate and the first connecting shaft group.

[0030] Fig.13 Shown Figure 8 Schematic diagram of the combined cross-sectional structure of the midsole plate, the slider body and the first connecting shaft.

[0031] Fig.14 Shown is a schematic diagram of the axial structure of the slider body from a first viewing angle.

[0032] Fig.15 Shown is a schematic diagram of the axial structure of the slider body from a second viewing angle.

[0033] Fig.16 The figure shows the axial structure schematic diagram of the slider body and the base plate after being combined from the first viewing angle.

[0034] Fig.17 The figure shows the axial structure schematic diagram of the slider body and the base plate after being combined from a second viewing angle.

[0035] Fig.18 Shown is a schematic diagram of the axial structure of the first side plate.

[0036] Fig.19 Shown is a schematic diagram of the axial structure of the second side plate.

[0037] Fig. 20 Shown is a schematic diagram of the axial structure of the gun head body from the first perspective.

[0038] Fig.21 Shown is a schematic diagram of the axial structure of the gun head body from a second viewing angle.

[0039] Fig. 22 Shown is a schematic diagram of the axial structure of the gun head body from the third perspective.

[0040] Fig.23 Shown is a top view of the structure of the gun head assembly.

[0041] Fig.24 Shown Fig.23 Schematic diagram of the cross-sectional structure along the XXIV-XXIV direction.

[0042] Fig.25 Shown is a schematic diagram of the axial structure of the feed sleeve.

[0043] Fig.26 Shown Figure 1 Schematic diagram of the axial structure of the middle clamp assembly from the first perspective.

[0044] Fig. 27 Shown is a schematic diagram of the axial structure of the clamp assembly from a second viewing angle.

[0045] Fig.28 Shown is a schematic diagram of the axial structure of the clamp assembly from a third viewing angle.

[0046] Fig.29 Shown Fig.26 Schematic diagram of the axial structure of the middle clamp mounting block from the first perspective.

[0047] Fig.30 Shown is a schematic diagram of the axial structure of the clamp mounting block from a second viewing angle.

[0048] Fig.31 Shown Fig.26 Schematic diagram of the axial structure of the middle clamp mounting base from the first perspective.

[0049] Fig.32 Shown is a schematic diagram of the axial structure of the clamp mounting base from a second viewing angle.

[0050] Fig.33 Shown Fig.26 Schematic diagram of the shaft side structure after the middle clamp lock is connected to the cylinder.

[0051] Fig.34 Shown Fig.33 Schematic diagram of the axial structure of the middle clamp lock.

[0052] Fig.35 Shown is a schematic diagram of the shaft side structure after the clamp mounting base and the clamp lock are combined.

[0053] Fig.36 Shown Fig.26 Schematic diagram of the shaft side structure after the middle clamp body and the clamp lock are combined.

[0054] Fig.37 Shown Fig.26 Schematic diagram of the axial structure of the middle clamp body.

[0055] Fig.38 Shown Figure 1 Schematic diagram of the axial structure of the tightening device with a gun head capable of storing nails after removing the gun head assembly and the clamp assembly.

[0056] Fig.39 Shown Figure 1 Schematic diagram of the axial structure of the tightening device with a nail storage in the gun head after the screwdriver assembly is removed.

[0057] Fig.40 Shown Figure 1 Schematic diagram of the axial structure of the tightening device with a gun head capable of storing nails after removing the first support seat and the connecting block.

[0058] Fig.41 Shown Fig.40 Schematic diagram of the shaft side structure of the locating bushing.

[0059] Fig.42 Shown Fig.40 Schematic diagram of the shaft side structure of the middle guide bushing.

[0060] 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 groove; 116, first elastic member; 12, slider structure; 121, bottom plate; 1211, slide groove; 1212, driving groove ; 1213, first connecting shaft; 1214, driving interface; 1215, first sealing gasket; 122, slider body; 1221, fourth channel; 1222, fifth channel; 1223, side surface; 1224, first end surface; 1225, second end surface; 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. feeding sleeve; 131. sleeve body; 1311. first retaining ring; 1312. vent hole; 1313. second retaining ring; 1314. recessed portion; 132. locking block; 1321. protruding portion; 1322. first rotating shaft; 1323. pressing portion; 1331. first space; 1332. second space; 20. clamp assembly Component; 21, power source; 22, mounting seat; 221, clamp sliding slot; 222, through slot; 23, clamp lock; 231, sliding slot; 24, clamp body; 241, second connecting shaft; 242, clamping part; 25, clamp mounting block; 251, sixth channel; 252, clamp mounting slot; 30, screwdriver assembly; 31, screwdriver body; 32, batch head; 40, drive assembly; 41, cap recognition cylinder; 42, stroke cylinder; 43. Driving structure; 431. Second elastic member; 432. Guide column; 50. Base; 51. First support seat; 511. Limit column; 52. Second support seat; 521. Guide channel; 522. Connecting block; 523. Vacuum joint; 53. Third support seat; 54. Fourth support seat; 61. Vacuum tube; 62. Positioning bushing; 63. O-ring; 64. Guide bushing; 65. Mounting joint. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] The invention provides a tightening device with a gun head capable of storing nails, which changes the nailing structure and reduces the beat, and at the same time does not generate metal chips and ensures cleanliness.

[0063] like Figures 1 to 3 As shown, an embodiment of the present invention 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 through a first support seat 51, preferably on one end of the base 50. The clamp assembly 20 is connected to the gun head assembly 10. A second support seat 52 is slidably provided on the base 50, and the second support seat 52 is located at one end of the gun head assembly 10 away from the clamp assembly 20. A vacuum tube 61 is provided between the second support seat 52 and the gun head assembly 10. A third support seat 53 is slidably provided on the base 50. The screwdriver assembly 30 includes a screwdriver body 31 and a screwdriver bit 32, the screwdriver body 31 is provided on the third support seat 53, one end of the screwdriver bit 32 is connected to the screwdriver body 31, and the other end can slide along its own axis and extend into the vacuum tube 61. The driving assembly 40 includes a cap recognition cylinder 41 and a stroke cylinder 42, which are fixedly arranged 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, driving the third support seat 53 to slide along the base 50, and the third support seat 53 drives the second support seat 52 to slide on the base 50.

[0064] like Figures 4 to 7 ,as well as Figure 20 to Figure 22 As shown, the gun head assembly 10 includes a gun head body 11, a slider structure 12 and a feed sleeve 13 for screws to enter the gun head body 11. A groove 111 is provided on the gun head body 11, and the slider structure 12 can be extended in the width direction of the device (i.e. Figure 2The feeding sleeve 13 is movably arranged in the groove 111 (in the vertical direction), and the feeding sleeve 13 is arranged on the gun head body 11. The gun head body 11 is provided with a first channel 112, a second channel 113 and a third channel 114. The first channel 112 and the second channel 113 are arranged horizontally, and are respectively arranged on both sides of the groove 111. The first channel 112 is connected between the clamp assembly 20 and the groove 111, and the second channel 113 is connected between the groove 111 and the vacuum tube 61. The third channel 114 is connected between the feeding sleeve 13 and the groove 111. Preferably, the first channel 112 and the second channel 113 are arranged horizontally, and the third channel 114 is arranged obliquely. In other words, the feeding sleeve 13 is installed at the upper end of the third channel 114, that is, the side of the third channel 114 away from the groove 111.

[0065] Please continue to refer to Figures 6 to 13 The slider structure 12 includes a bottom plate 121 and a slider body 122. The bottom plate 121 is fixed in the groove 111 of the gun head body 11. Figure 2 As shown, a slide groove 1211 is formed in the up-down direction, and the slider body 122 can be slidably disposed in the slide groove 1211 along the length direction of the slide groove 1211 .

[0066] 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. The fourth channel 1221 and the fifth channel 1222 both penetrate the slider body 122. The slider body 122 moves along the width direction of the gun head assembly 10 on the bottom 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.

[0067] 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.

[0068] When loading the screws, the slider body 122 can be moved to the first position. At this time, the screw 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 clamp assembly 20; after the screw enters 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 screw bit 32 to pass through.

[0069] Furthermore, when the slider body 122 is located at the second position, although the communication between the first channel 112 and the third channel 114 is cut off, the third channel 114 is still connected to the feed sleeve 13, so new screws can still enter the third channel 114, and the third channel 114 plays the role of storing screws. When the position of the slider body 122 is moved to the first position again, the screws stored in the third channel 114 will directly enter the first channel 112 through the fourth channel 1221, so as to save the time of loading the screws and speed up the production cycle.

[0070] Through the above-mentioned setting, the screwing of the screw can be achieved by changing the position of the slider body 122, which eliminates the setting of the swing arm, avoids the vacuum tube 61 colliding with the swing arm, does not generate metal chips, and ensures the cleanliness of the screwing link.

[0071] Furthermore, in order to ensure that the fourth channel 1221 and the fifth channel 1222 can both 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 is a horizontal line on the side of the slider body 122 facing the first channel 112. In other words, on this side, the center points of the ends of the fourth channel 1221 and the fifth channel 1222 and the axis of the first channel 112 are located on the same plane.

[0072] Furthermore, the slider body 122 includes two vertical side surfaces 1223, a first end surface 1224 located on the side facing the first channel 112, a second end surface 1225 located on the side away from the first channel 112, and a top surface 1226. An upper inclined surface 1227 is also formed between the second end surface 1225 and the top surface 1226. The fourth channel 1221 is connected between the upper inclined surface 1227 and the first end surface 1224, and the fifth channel 1222 is connected between the first end surface 1224 and the second end surface 1225. The fourth channel 1221 is an inclined channel, and the fifth channel 1222 is a horizontal channel.

[0073] A position detection hole 1229 is also provided on the upper inclined surface 1227 . A sensor may be provided in the position detection hole 1229 to detect whether the screw is in the fourth channel 1221 or the fifth channel 1222 .

[0074] Furthermore, the slider structure 12 further includes a first side plate 123 and a second side plate 124, which are fixed to the bottom plate 121 and are respectively located on both sides of the slider body 11. The bottom plate 121, the first side plate 123, the second side plate 124 and the gun head body 11 together enclose a receiving space for receiving the slider body 122 to prevent debris from entering the space.

[0075] For further information, please refer to Figures 10 to 15 A first connection block 1228 is formed at the bottom of the slider body 122, and a driving groove 1212 and a first connecting shaft 1213 are provided in the bottom plate 121. The driving groove 1212 is connected to the slide groove 1211, and the first connecting shaft 1213 can be fixed to the first connection block 1228 by bolts and other fixing parts, and the two ends of the first connecting shaft 1213 extend into the two driving grooves 1212 respectively. A driving interface 1214 is formed on the driving groove 1212, and the first connecting shaft 1213 can be pushed by a driving fluid such as oil or gas, so that the first connecting shaft 1213 drives the slider body 122 to move in the slide groove 1211 through the first connection block 1228.

[0076] In this embodiment, the movement of the first connecting shaft 1213 can be driven pneumatically. In order to ensure the sealing performance during driving, a first sealing gasket 1215 is sleeved on the portion of the first connecting shaft 1213 extending into the driving groove 1212 .

[0077] During driving, the driving groove 1212 can be ventilated through a driving interface 1214, and the other driving groove 1212 can be evacuated to realize the movement of the first connecting shaft 1213 in the sliding groove 1211. The first connecting shaft 1213 is connected to the slider body 122, and the slider body 122 can complete the position conversion.

[0078] Furthermore, positioning rods 126 are installed on both sides of the slider body 122, and 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 driving groove 1212, the slider body 122 can be ensured to slide stably and the alignment between the channels can be ensured to be accurate.

[0079] Furthermore, a proximity switch 1251 for sensing the position of the slider body 122 is 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 means that the position of the slider body 122 has been converted. At this time, the pump body connected to the drive interface 1214 can stop working. The device can be used for nailing or subsequent tightening work.

[0080] Furthermore, a proximity groove 1252 communicating with the guide groove 125 is disposed on both the first side plate 123 and the second side plate 124 , and the proximity switch 1251 is disposed in the proximity groove 1252 .

[0081] In this embodiment, at one 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 located at the end surface 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.

[0082] More specifically, each of the above-mentioned cylinders, pump body, proximity switch 1251 and screwdriver body 31 can be driven by a control device (not shown), such as a PLC. Using the PLC to receive signals and control the operation of related components is common knowledge of the tightening device and will not be introduced in detail here.

[0083] Further, please refer to 7. Figure 20 to Figure 22 As shown, the groove 111 includes a first groove 1111 and a second groove 1112 connected to the first groove 1111. Compared with 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 bottom plate 121 is disposed in the second groove 1112, and the slider body 122 extends into the first groove 1111.

[0084] Please continue to refer to Figure 4 , Figure 22 to Figure 25 The feed sleeve 13 includes a sleeve body 131 and a locking block 132. One end of the sleeve body 131 will extend into the third channel 114 in the gun head body 11. The locking block 132 is swingably mounted on the gun head 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 gun head body 11 of the gun head assembly 10, the locking block 132 abuts against the first retaining ring 1311 from the side of the first retaining ring 1311 away from the gun head body 11 to prevent the sleeve body 131 from escaping from the third channel 114 of the gun head body 11, that is, the locking block 132 locks the sleeve body 131.

[0085] Through the above arrangement, when the sleeve body 131 needs to be replaced, the locking block 132 can be removed to unlock the locking block 132 on the sleeve body 131. At this time, the sleeve body 131 can be directly taken out from the third channel 114, and then the sleeve body 131 can be replaced. When the sleeve body 131 is put back into the third channel 114, the locking block 132 can be pressed against the first retaining ring 1311 again, and the sleeve body 131 can no longer be removed from the third channel 114, and the fixing of the sleeve body 131 can be completed. This can make it easier to replace the sleeve body 131, saving time and cost.

[0086] Preferably, when the sleeve body 131 is installed in the third channel 114, the first retaining ring 1311 is flush with the end surface 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 overlap 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.

[0087] Preferably, one end of the locking block 132 in contact with the first retaining ring 1311 protrudes in the direction of the axis of the sleeve body 131 to form a protruding portion 1321 , and the protruding portion 1321 abuts against the first retaining ring 1311 to lock the sleeve body 131 .

[0088] Further, in the present embodiment, a locking block installation groove 115 is formed on the gun head body 11, a first rotating shaft 1322 is provided on the locking block 132, and the locking block 132 is swingably provided in the locking block installation groove 115 via the first rotating shaft 1322. Specifically, the locking block installation groove 115 can be provided at the top of the gun head body 11, and the locking block 132 can be swingably provided in the locking block installation groove 115 via the first rotating shaft 1322. When the locking block 132 is pressed away from the end of the first retaining ring 1311, the end of the locking block 132 abutting against the first retaining ring 1311 can be tilted up to complete the unlocking of the sleeve body 131, and the sleeve body 131 can be smoothly taken out from the third channel 114.

[0089] Furthermore, the feed sleeve 13 further includes a first elastic member 116, which is disposed between the locking block 132 and the gun head body 11 to store elastic energy when the locking block 132 cancels the locking of the sleeve body 131, and the release of the elastic energy can make the locking block 132 rest against the first retaining ring 1311 again. That is, through the provision of the first elastic member 116, it can be ensured that after the external force acting on the locking block 132 is canceled, the locking block 132 rests against the first retaining ring 1311 again, so as to ensure that the locking block 132 can stably lock the sleeve body 131.

[0090] Preferably, the first elastic member 116 is located at one end of the locking block 132 away from the first retaining ring 1311. In other words, the first elastic member 116 and the first retaining ring 1311 are respectively located on both sides of the first rotating shaft 1322. A pressing portion 1323 is also provided on the locking block 132, and the pressing portion 1323 and the first retaining ring 1311 are respectively located on both sides of the first rotating shaft 1322, so as to apply pressure to the locking block 132 so that the locking block 132 releases the locking of the sleeve body 131.

[0091] For further information, please refer to Fig. 22A first connecting hole 1141 and a second connecting hole 1142 are formed on the gun head body 11, which are connected to the third channel 114 and used for air flow. Along the screwing direction, the second connecting hole 1142 is located downstream of the first connecting hole 1141. A vent hole 1312 is opened on the sleeve body 131.

[0092] When feeding, air can be drawn into the third channel 114 through the second connecting hole 1142. Since there may be dust on the screw itself, air can be drawn through the second connecting hole 1142 during feeding, and the dust on the screw can be taken out from the vent hole 1312 without affecting the screw nailing by the air flow. It should be noted that at this time, the first connecting hole 1141 can exist as a convection air hole for the second connecting hole 1142, that is, when the second connecting hole 1142 is evacuated, the external air flow can flow from the first connecting hole 1141 to ensure the smooth flow of air flow.

[0093] In other embodiments, airflow may be actively injected into the first connecting hole 1141. When actively injecting airflow into the first connecting hole 1141, the position of the screw in the third channel 114 needs to be considered. When the screw has fallen to the bottom of the third channel 114, airflow may be injected into the first connecting hole 1141. On the one hand, the injection of airflow can blow out the dust on the screw, and on the other hand, the injection of airflow can prevent the screw from coming out of the end of the sleeve body 131 away from the gun head body 11.

[0094] It should be noted that the position of the screw in 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, it is determined 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 is just switched from the second position to the first position, air can be blown through the first connecting hole 1141 to ensure smooth nailing.

[0095] 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 is connected to the first space 1331, and a part of the vent hole 1312 is formed on the sleeve body 131 where the first space 1331 is located.

[0096] A recessed portion 1314 is formed on the outer wall of the sleeve body 131. When the sleeve body 131 extends into the third channel 114, the recessed portion 1314 and the inner wall of the third channel 114 form a sealed second space 1332. The second communication hole 1142 is connected to the second space 1332, and another part of the vent holes 1312 is formed on the sleeve body 131 at the location of the second space 1332.

[0097] It should be noted that, in this embodiment, the above-mentioned closed meaning means that except for the vent hole 1312, the first space 1331 is not connected to the second space 1332. Through the arrangement of the above-mentioned first space 1331 and the second space 1332, the flow direction of the airflow can be optimized to achieve a better dust removal effect.

[0098] Please continue to refer to Figures 26 to 37 The clamp assembly 20 includes a power source 21, a mounting seat 22, a clamp lock 23, a clamp body 24 and a clamp mounting block 25. The clamp mounting block 25 can be fixed on the gun head body 11. The clamp lock 23 is slidably disposed in the mounting seat 22. There are two clamp bodies 24, and each clamp body 24 can be swingably disposed on the clamp mounting block 25. A long strip sliding groove 231 is formed on the clamp lock 23, and an angle of not 0° is formed between the long strip sliding groove 231 and the sliding direction of the clamp lock 23 on the mounting seat 22. A sixth channel 251 corresponding to the first channel 112 is formed on the clamp mounting block 25. The clamp body 24 extends into the sliding groove 231 through the second connecting shaft 241, and the second connecting shaft 241 can slide in the sliding groove 231. The power source 21 drives the clamp lock 23 to slide in the mounting seat 22, and drives the two clamp bodies 24 to swing relative to the clamp mounting block 25 through the sliding slot 231 to switch between the open and clamping positions.

[0099] When the screw enters the clamp assembly 20 through the first channel 112, the power source 21 drives the clamp lock 23 to slide in the mounting seat 22. Since there is an angle between the sliding groove 231 on the clamp lock 23 and the sliding direction of the clamp lock 23, during the movement of the clamp lock 23, the sliding groove 231 drives the second connecting shaft 241 to move, so as to change the position of the second connecting shaft 241. The change in the position of the second connecting shaft 241 drives 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.

[0100] Furthermore, the two sliding grooves 231 are arranged in an axisymmetric manner, and the clamp lock 23 moves in the mounting seat 22 along a straight line where the symmetry axes of the two sliding grooves 231 are located.

[0101] Furthermore, a clamp sliding groove 221 and a through groove 222 are provided on the mounting seat 22, and the clamp lock 23 is slidably disposed in the clamp sliding groove 221. The power source 21 may be a cylinder, which is fixed to the mounting seat 22, and the output end of the cylinder passes through the through groove 222 and is connected to the clamp lock 23.

[0102] The clamp mounting block 25 is directly fixed to one 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 swingably arranged in the clamp mounting grooves 252 through a hinge pin.

[0103] Two clamping portions 242 arranged opposite to each other are also provided on the clamp body 24 to clamp the screw when the clamp assembly 20 is in a closed state.

[0104] Please continue to refer to Figures 1 to 3 ,as well as Figures 38 to 42 In this embodiment, the capping cylinder 41 and the stroke cylinder 42 are arranged side by side on the fourth support seat 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 passing through the fourth support seat and connecting to the third support seat at the same time, the length of the entire tightening device can be shortened (i.e. Figure 2 Furthermore, since the two cylinders are located below the screwdriver body 31, the cap cylinder 41, the stroke cylinder 42 and the screwdriver body 31 are arranged in a triangle when viewed from the end face of the device, which further shortens the width of the entire tightening device (i.e. Figure 2 The distance in the upper and lower directions) can further reduce the space occupied by the device.

[0105] Furthermore, along the axis direction of the vacuum tube 61, the cap cylinder 41 and the stroke cylinder 42 are symmetrically arranged on the fourth support seat 54 with respect to the vertical plane where the axis of the vacuum tube 61 is located. It should be explained that the above symmetry means that in the width direction (i.e. Figure 2 In the up and down direction), the distance from the fixed point of the cap cylinder 41 on the fourth support seat 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 seat 54 to the vertical plane where the axis of the vacuum tube 61 is located.

[0106] A driving structure 43 is arranged between the third support seat 53 and the second support seat 52. When the cap recognition cylinder 41 and / or the stroke cylinder 42 pushes the third support seat 53, the third support seat 53 drives the second support seat 52 to move in the direction of the gun head assembly 10, that is, in the direction of the first support seat 51, through the driving structure 43.

[0107] In this embodiment, the driving structure 43 may include a second elastic member 431 , such as a spring, and the second elastic member 431 is disposed between the second support seat 52 and the third support seat 53 .

[0108] One end of the vacuum tube 61 is fixed on the second support seat 52, and the other end can slide along its own axis and extend into the gun head assembly 10, specifically, the second channel 113 of the gun head body 11. One end of the screwdriver head 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 to the vacuum tube 61.

[0109] After the clamp assembly 20 completes the clamping of the screw, the screw capping and screwing operation can be performed. The specific method is: the capping cylinder 41 can be started first, and the third support seat 53 is pushed to move by the first telescopic rod of the capping cylinder 41. The third support seat 53 drives the second support seat 52 to move through the second elastic member 431. At this time, the second elastic member 431 is not compressed, or its compression amount can be ignored. The screwdriver body 31, the screwdriver head 32 and the vacuum tube 61 can move synchronously. The second support seat 52 drives the vacuum tube 61 to pass through the second channel 113, the fifth channel 1222 and the first channel 112 in sequence (the slider body 122 is in the second position at this time). At this time, the vacuum device connected to the vacuum tube 61 can be started to evacuate the vacuum tube 61 to adsorb the screw on one end of the vacuum tube 61 extending into the gun head assembly 10.

[0110] The capping cylinder 41 continues to work, driving the third support seat 53 to continue to move forward. At the same time, the clamp assembly 20 releases the clamping of the screw, and the vacuum tube 61 drives the screw to extend and place the screw to a position corresponding to the screw hole to be tightened.

[0111] When the vacuum tube 61 drives the screw to move into place, the capping 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 is against the first support seat 51, the second telescopic rod of the stroke cylinder 42 will only drive the third support seat 53 to move toward the position of the gun head body 11, and the second elastic member 431 is compressed. Correspondingly, the screwdriver bit 32 will move in the vacuum tube 61. When one end of the screwdriver bit 32 extends into the vacuum tube 61 and contacts the screw, the screwdriver body 31 starts, driving the screwdriver bit 32 to rotate to complete the tightening of the screw.

[0112] After the entire capping and tightening process is completed, the capping cylinder 41, the stroke cylinder 42, the second support seat 52 and the third support seat 53 are reset to start the next operation.

[0113] That is, in this embodiment, the cap recognition cylinder 41 and the stroke cylinder 42 both apply power to the same structure, that is, the third support seat 53, to complete the cap recognition and tightening process. The error of the cap recognition cylinder 41 on the stroke of the third support seat 53 will not be accumulated on the movement of the stroke cylinder 42. This driving method can more accurately control the stroke of each structure and prevent the accumulation of errors.

[0114] In this embodiment, in order to more accurately move the screw to the position corresponding to the screw hole to be tightened through the vacuum tube 61, a limiting column 511 is provided on the first support seat 51, one end of the limiting column 511 is connected to the first support seat 51, and the other end extends in the direction of the second support seat 52. By adjusting the length of the limiting column 511, the stroke of the vacuum tube 61 can be controlled. When the second support seat 52 abuts against the end surface of the limiting column 511, it means that the position of the screw at this time corresponds to the position of the screw hole to be tightened.

[0115] In other embodiments, the position of the entire tightening device can be fixed, and the position between the first support seat 51 and the second support seat 52 can be limited. When the second support seat 52 abuts against the first support seat 51 during movement, the vacuum tube 61 drives the screw to move to a position corresponding to the screw hole to be tightened, so as to accurately locate the placement position of the screw.

[0116] To facilitate the resetting of the above structures, in this embodiment, one end of the first telescopic rod of the cap recognition cylinder 41 facing the third support seat 53 or one 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.

[0117] In this embodiment, one 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, that is, the reset of the second telescopic rod will drive the third support seat 53 to reset, and then drive the second support seat 52, the screwdriver bit 32 and the vacuum tube 61 to reset. After the cap recognition cylinder 41 moves to the right position and the stroke cylinder 42 starts to work, the first telescopic rod of the cap recognition cylinder 41 can be separated from the third support seat 53. After the stroke cylinder 42 is reset, the cap recognition cylinder 41 rests on the third support seat 53 again.

[0118] Furthermore, a guide column 432 is provided between the third support seat 53 and the second support seat 52, and the second elastic member 431 is sleeved on the guide column 432. A guide channel 521 is formed on the second support seat 52. One end of the guide column 432 is fixed to the third support seat 53, and the other end can be moved along its own axis direction and extend into the guide channel 521. When the second support seat 52 abuts against the first support seat 51 and the third support seat 53 continues to move, the guide column 432 can move in the guide channel 521 to prevent the third support seat 53 and the second support seat 52 from shaking relative to each other, so that the screwdriver bit 32 can tighten the screw more accurately.

[0119] For further information, please refer to Figure 40 to Figure 42 A positioning bushing 62 is provided on the second support seat 52, and one end of the vacuum tube 61 facing the second support seat 52 is fixed to the second support seat 52 through the positioning bushing 62. An O-ring 63 is also sleeved on the outer surface of the positioning bushing 62. In this embodiment, one O-ring 63 can be provided on the positioning bushing 62.

[0120] A guide bushing 64 is provided on the first support seat 51. The guide bushing 64 is fixedly installed in the mounting joint 65. The mounting joint 65 is fixed on the first support seat 51 and extends into the gun head body 11 of the gun head assembly 10. One end of the vacuum tube 61 facing the first support seat 51 can be moved along its own axis direction and extend into the guide bushing 64. 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.

[0121] The design of the positioning bushing 62, the guide bushing 64 and the O-ring 63 allows the vacuum tube 61 to float. In actual production, since the vacuum tube 61 and the screwdriver bit 32 are both relatively long, certain vibrations will be generated during the operation of the capping cylinder 41 and the stroke cylinder 42. In addition, due to the gravity of the screwdriver bit 32, the screwdriver bit 32 will shake. This shaking will cause deviations between the vacuum tube 61 and the screw hole to be tightened, and between the screw and the screw hole to be tightened, affecting the accuracy of screw tightening. Through the floating design, the floating of the vacuum tube 61 can be used to compensate for the deviation between the center of the screw and the center of the screw hole. When the axis of the vacuum tube 61 is offset, the positioning bushing 62 and the guide bushing 64 will also move accordingly, and the O-ring 63 will also deform, thereby resetting the vacuum tube 61.

[0122] A connecting block 522 is also provided on the second supporting seat 52 , and the positioning bushing 62 is installed in the connecting block 522 . A vacuum joint 523 connected to the vacuum tube 61 is also provided on the connecting block 522 .

[0123] In summary, in the present application, the slider structure 12 is arranged in the gun head body 11, so that the gun head assembly 10 can change the connection state between multiple channels in the gun head assembly 10 by switching the position of the slider body 122, and then complete the screw driving operation. This eliminates the setting of the swing arm, changes the structure of the screw driving, reduces the beat, avoids the vacuum tube 61 from colliding with the swing arm, does not generate metal chips, and ensures the cleanliness of the screw driving link.

[0124] Furthermore, by setting the locking block 132 in the feed sleeve 13 and the setting of the installation method of the sleeve body 131, the locking block 132 can fix the sleeve body 131, and when the sleeve body 131 is replaced, the locking block 132 can be moved to remove the sleeve body 131. This can make it easier to replace the sleeve body 131, save time and cost, and improve production efficiency.

[0125] Furthermore, by arranging two cylinders in parallel and located below the screwdriver body 31, the length and width of the entire tightening device can be shortened, and the space occupied by the device can be reduced. By the movement between the second support seat 52, the third support seat 53 and the driving assembly 40, the error accumulation generated during the movement is reduced, and the accuracy of tightening the screw is guaranteed.

[0126] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A tightening device with a gun head capable of storing nails, characterized in that: It includes a gun head assembly, which includes a gun head body, a slider structure and a feed sleeve, wherein a groove is provided on the gun head body, a first channel is formed on one side of the groove, and a second channel and a 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, and a fourth channel and a fifth channel penetrating the slider body are formed on the slider body; the slider body can be slidably arranged in the groove along the width direction of the gun head body, so that the slider body forms a first position and a second position in the groove, in the first position, the first channel is connected to the third channel through the fourth channel, and in the second position, the first channel is connected to the second channel through the fifth channel.

2. A tightening device with a gun head capable of storing nails according to claim 1, characterized in that: The slider structure also includes a bottom plate, the bottom plate is fixed in the groove, a slide groove is formed on the bottom plate, and the slider body is slidably disposed in the slide groove of the bottom plate.

3. A tightening device with a gun head capable of storing nails according to claim 2, characterized in that: A first connecting block is formed at the bottom of the slider body, a driving groove connected to the slide groove is arranged in the bottom plate, a first connecting shaft is fixedly connected to the first connecting block, the first connecting shaft is arranged in the slide groove, and the two ends of the first connecting shaft extend into the two driving grooves respectively, a driving joint is formed on the driving groove, and a driving fluid is injected into the driving interface to drive the slider body to move in the slide groove through the first connecting shaft.

4. A tightening device with a gun head capable of storing nails according to claim 3, characterized in that: The slider structure also includes a first side plate and a second side plate, which are fixed to the bottom plate and are respectively located on both sides of the slider body. Proximity switches for sensing the position of the slider body are arranged on the first side plate and the second side plate.

5. A tightening device with a gun head capable of storing nails according to claim 1, characterized in that: The first channel, the second channel and the fifth channel are arranged horizontally, the third channel and the fourth channel are arranged obliquely, and at one end of the slider body facing the first channel, the center points of the ends of the end faces of the fourth channel and the fifth channel displacements are located in the same plane as the axis of the first channel.

6. A tightening device with a gun head capable of storing nails 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 swingably mounted on the gun head assembly, a first retaining ring is formed on the sleeve body, when the feed sleeve is mounted on the gun head assembly, the locking block abuts against the first retaining ring from a side of the first retaining ring away from the gun head body to prevent the sleeve body from escaping from the third channel.

7. A tightening device with a gun head capable of storing nails according to claim 6, characterized in that: A locking block installation groove is formed on the gun head body, a first rotating shaft is arranged on the locking block, and the locking block is swingably arranged in the locking block installation groove through the first rotating shaft.

8. A tightening device with a gun head capable of storing nails according to claim 7, characterized in that: The feed sleeve also includes a first elastic member, which is arranged between the locking block and the gun head body to store elastic energy when the locking block cancels the locking of the sleeve body. The release of the elastic energy causes the locking block to rest against the first retaining ring again.

9. A tightening device with a gun head capable of storing nails according to claim 1, characterized in that: The tightening device for storing nails in the gun head includes a screwdriver assembly, a driving assembly, a base and a vacuum tube, the gun head assembly is fixed to the base through the first supporting seat, and a second supporting seat is slidably arranged on the base, one end of the vacuum tube is fixed to the second supporting seat, and the other end can be movably extended into the second channel of the gun head assembly along its own axis; the screwdriver assembly includes a screwdriver body and a bit, the screwdriver body is arranged on a third supporting seat, the third supporting seat is slidably arranged on the base, one end of the bit is connected to the screwdriver body, and the other end can be movably extended into the vacuum tube along its own axis; the driving assembly includes a cap recognition cylinder and a stroke cylinder, the cap recognition cylinder and the stroke cylinder are fixedly arranged on the base, and drive the third support seat to slide on the base.

10. A tightening device with a gun head capable of storing nails 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 with respect to the axis of the vacuum tube.

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