Blind rivet and rivet row

Abstract

The utility model provides a self-plugging rivet and a rivet row, the self-plugging rivet comprises a rivet rod and a rivet sleeve, the rivet sleeve comprises a pipe body and a rivet cap connected to the first end of the pipe body, the rivet cap protrudes outwards relative to the periphery of the pipe body, the pipe body is arranged on the outer side of the rivet rod in a sleeving mode, the rivet cap is provided with two opposite straight side surfaces, and the two straight side surfaces are opposite to each other. The adjacent self-plugging rivets abut against each other through the side planes, so that the plurality of self-plugging rivets can be easily and stably arranged to form a rivet row, and the rivet loading efficiency of the hand riveter is improved.

Description

[0001] This application is a divisional application of a utility model patent application with an application date of March 15, 2024, an application number of "202420518065.4", and a utility model name of "gun head module and rivet gun with a gun head module". Technical Field

[0002] The present invention relates to the technical field of rivet guns, and in particular to a blind rivet and a rivet row. Background Art

[0003] The rivet gun can clamp rivets on the workpieces that need to be connected to each other to achieve a fixed connection between the workpieces. Even when the operating space is limited, it can perform unilateral operation. Therefore, it is widely used in the fastening and riveting of various plates, pipes and other components.

[0004] However, traditional rivet guns usually require workers to manually insert the rivet rod into the gun nozzle, clamp the rivet rod of the blind rivet through the rivet assembly and perform the rivet operation to rivet the workpieces together. After completing a riveting operation, it is necessary to wait for the gun nozzle to spit out the broken rivet rod before manually inserting the next rivet, which is cumbersome and inefficient. Although some rivet guns have an automatic nailing function, the internal structure is usually complicated, and it is still necessary to use the nailing channel to spit out the broken rivet rod before the nailing operation can be performed, and the problem of low riveting efficiency still exists. Utility Model Content

[0005] The purpose of the present application is to provide a blind rivet and a rivet row to solve the problem of low operating efficiency of the rivet gun in the prior art.

[0006] In view of the above objectives, the present disclosure provides the following technical solutions:

[0007] One aspect of the present disclosure provides a gun head module, which includes a gun head shell and a nail clamping unit, the gun head shell having a accommodating cavity extending along a first direction, the gun head shell having a nail outlet mouth connected to the accommodating cavity at the front end of the first direction, the gun head shell also being provided with a nail entry port and a nail rod outlet, in a second direction perpendicular to the first direction, the nail entry port and the nail rod outlet being arranged opposite to each other, the nail clamping unit having a nail entry port, the nail clamping unit being able to move forward and backward in the accommodating cavity along the first direction, when the nail clamping unit carries the blind rivet to move forward, the blind rivet can be sent out through the nail outlet mouth, when the nail clamping unit carries the broken nail rod to move backward to a predetermined position along the first direction, the broken nail rod can be separated from the accommodating cavity through the nail rod outlet, and the next blind rivet can enter the nail clamping port through the nail entry port.

[0008] An exemplary embodiment of the present disclosure is that the nail clamping mouth can be closed or opened, and a guide track is provided in the gun head housing, and the guide track includes a first track segment and a second track segment. When the nail clamping unit is located in the first track segment, the nail clamping mouth can be closed to clamp the nail rod, and when the nail clamping unit is located in the second track segment, the nail clamping mouth can be opened to release the nail rod.

[0009] Specifically, the first track segment is connected to the second track segment, the first track segment is located on a side close to the nail ejection mouth relative to the second track segment, and the nail clamping unit can move along the first track segment into the second track segment in the accommodating cavity.

[0010] Further, the first track segment and the second track segment form an outwardly inclined straight line segment from front to back relative to the movement path of the blind rivet; or, the first track segment is parallel to the movement path of the blind rivet, and the second track segment is farther from the movement path of the blind rivet relative to the first track segment.

[0011] Optionally, the first track segment extends parallel to the first direction, the front end of the first track segment is arranged close to the nail ejection mouth, and the second track segment extends outwardly from the rear end of the first track segment from the front to the rear relative to the first track segment.

[0012] Specifically, the nail clamp unit includes at least two nail clamp plates, and the at least two nail clamp plates are arranged at intervals along the circumference of the gun head housing. The nail clamp opening is formed between the at least two nail clamp plates. When the nail clamp unit is located in the first track segment, the at least two nail clamp plates are retracted and the nail clamp opening clamps the nail rod. When the nail clamp unit is located in the second track segment, the distance between the at least two nail clamp plates increases.

[0013] Further, the guide track is formed by the cavity wall of the accommodating cavity and / or is a track groove formed on the cavity wall of the accommodating cavity.

[0014] According to another exemplary embodiment of the present disclosure, the guide rails correspond to the clamping plates one by one, and each of the clamping plates can move along the corresponding guide rail.

[0015] Optionally, the guide track is a cavity wall of the accommodating cavity, and the accommodating cavity shrinks from the rear end of the gun head shell toward the front end of the gun head shell.

[0016] Specifically, the clamping nail unit includes two clamping nail plates, each of which corresponds to one guide rail, and the two guide rails are spaced and symmetrically arranged relative to the accommodating cavity, and the distance between the two second rail segments is greater than the distance between the two first rail segments, so that when the clamping nail unit is located in the second rail segment, the clamping nail mouth can be opened.

[0017] Furthermore, at least two of the nail clamping plates are arranged in parallel in the gun head housing and are spaced apart from each other by a predetermined gap to form the nail clamping opening.

[0018] According to another exemplary embodiment of the present disclosure, the gun head module further comprises a clamping force applying unit, which is disposed in the gun head housing and is used to apply a force to the nail clamping plate to keep the nail clamping opening closed.

[0019] Optionally, the clamping force applying unit is arranged on the outside of the clamp unit to apply an extrusion force to the clamp unit to bring at least two clamp plates together, or the clamping force applying unit is arranged on the inside of the clamp unit to apply a pulling force to the clamp plates to bring the clamp plates together.

[0020] Specifically, the at least two clamp plates are arranged in pairs, and each pair of the clamp plates are arranged facing each other. The clamping force applying unit includes two first elastic components arranged opposite to each other, which respectively apply elastic squeezing force to the clamp plates on the outer sides of the two clamp plates; or the clamping force applying unit includes a first elastic component, which applies elastic pulling force to the two clamp plates.

[0021] Furthermore, the clamping force applying unit includes a second elastic component, which is arranged on the outer side of the clamping plate and close to the clamping opening, and the second elastic component applies a squeezing force to the clamping unit.

[0022] According to another exemplary embodiment of the present disclosure, the clamping force applying unit includes at least two clamping plates, at least two second elastic components are arranged on the outer side of each clamping plate, and at least two second elastic components are arranged on the corresponding clamping plates at intervals along the first direction to apply extrusion force to the clamping plates.

[0023] Optionally, the clamping plate is located on a side of the accommodating cavity close to the nail ejection mouth, and when the nail clamping unit is located in the first track segment, the clamping plate abuts against the nail clamping plate, and when the nail clamping unit is located in the second track segment, the nail clamping plate is separated from the clamping force applying unit.

[0024] Specifically, the rear end of the clamping plate and the front end of the nail clamping plate have facing guiding inclined surfaces, so that the nail clamping plate can push the clamping plate away, thereby entering between at least two of the clamping plates.

[0025] Furthermore, at least two of the nail clamp plates are arranged in pairs, and each pair of the nail clamp plates are arranged facing each other. The clamping force applying unit includes a third elastic component, and the third elastic component is arranged on the inner sides of the two nail clamp plates, and the third elastic component applies tension to the nail clamp plates.

[0026] According to another exemplary embodiment of the present disclosure, there are two nail clamping plates, and the two nail clamping plates are cross-arranged and form a scissors structure through a hinge axis, and the front side opening of the scissors structure forms a nail clamping opening.

[0027] According to another exemplary embodiment of the present disclosure, the gun head module further includes a limiting assembly, which is arranged in the accommodating cavity and located at the nail ejection mouth. When the nail clamping unit carries the blind rivet and moves toward the front end of the accommodating cavity, the nail ejection channel of the limiting assembly can be opened to allow the nail cap of the blind rivet to pass through the nail ejection mouth, and after the nail cap passes through the nail ejection mouth, the limiting assembly can be reset to abut against the rear side of the nail cap.

[0028] Optionally, the limiting assembly includes a nail blocking plate and a nail blocking plate reset driving unit, the nail blocking plate reset driving unit applies a driving force to the nail blocking plate to close the nail ejection mouth, and when the nail clamping unit carries the blind rivet to move toward the nail ejection mouth, it abuts against the nail blocking plate, overcomes the resistance of the nail blocking plate reset driving unit, and causes the nail ejection mouth to open to allow the nail cap to pass through.

[0029] Specifically, the nail blocking plate resetting driving part includes a fourth elastic component, which is arranged on the outer side of the nail blocking plate and applies a squeezing force toward the nail outlet channel to each of the nail blocking plates.

[0030] Furthermore, there are at least two nail blocking plates, which are rotatably arranged in the accommodating cavity through a rotating shaft, and at least two of the nail blocking plates extend along the first direction. The gap between the front ends of at least two nail blocking plates forms a nail outlet channel, and the nail blocking plate reset driving part is connected between the outer side of the rear end of the nail blocking plate and the gun head housing to apply an outward pulling force to the rear end of the nail blocking plate, or, the two ends of the nail blocking plate reset driving part respectively abut against the inner side of the rear end of the nail blocking plate to apply an outward squeezing force to the nail blocking plate.

[0031] According to another exemplary embodiment of the present disclosure, at least two of the nail blocking plates are arranged in parallel, each of the nail blocking plates moves radially along the nail output channel, the gun head housing is provided with a nail blocking plate guide groove extending radially along the nail output channel, the nail blocking plate is provided with a nail blocking plate guide portion matching the nail blocking plate guide groove, and the nail blocking plate guide portion is movably arranged in the guide groove.

[0032] Optionally, the clamp unit also includes a clamp plate connecting block, the rear ends of the two clamp plates are connected to the clamp plate connecting block, and the clamp plate has one of a pin and a long hole, and the clamp plate connecting block has the other of the pin and the long hole, the long hole extends along a third direction perpendicular to the first direction, the pin can be slidably inserted into the long hole, and when the clamp unit enters the second track, the pin moves outward along the long hole.

[0033] According to another exemplary embodiment of the present disclosure, the clamping plate is provided with a slider which is slidably disposed in a corresponding guide track, or the clamping plate is connected with a rotating wheel which can roll on the guide track.

[0034] According to an exemplary embodiment of the present disclosure, a convex portion is provided on the outer periphery of the tail end of the nail rod, and an expansion cavity is formed at the rear end of the nail clamping opening, and the convex portion can be inserted into the expansion cavity.

[0035] Another aspect of the present disclosure is a rivet gun, comprising a gun body and the gun head module as described above, wherein the gun head module is mounted on the gun body.

[0036] According to another exemplary embodiment of the present disclosure, the rivet gun further includes a rivet clip, which includes a clip shell, a rivet row arranged in the clip shell, and a nail-pulling drive unit, wherein a first end of the clip shell has an opening and is connected to the nail entry port, and the nail-pulling drive unit is arranged at a second end of the clip shell opposite to the first end, and applies an extrusion force to the rivet row, so that a rivet in the rivet row enters the clamping port through the nail entry port.

[0037] Optionally, the rivet gun further includes a rivet driving unit, which is connected to the nail clamp unit and applies a driving force to the nail clamp unit to move the nail clamp unit forward and / or backward along the first direction.

[0038] Specifically, the rivet driving part is a manual driving part, an electric driving part, a pneumatic driving part or a hydraulic driving part.

[0039] Specifically, the rivet driving unit includes a reset driving member, which is connected to the nail clamping unit and can apply a driving force to the nail clamping unit toward the nail ejection mouth.

[0040] Furthermore, the reset driving member includes a spring group, the spring group is in a compressed state, and two ends of the spring group are respectively abutted between the rear end of the clamping nail unit and the cavity wall of the accommodating cavity.

[0041] Further, the rivet row includes a plurality of blind rivets, each of which includes a rivet rod and a rivet sleeve sleeved on the outside of the rivet rod, the rivet sleeve includes a tube body and a rivet cap connected to the end of the tube body, and in the direction in which the plurality of blind rivets are arranged, two sides of the rivet cap have relative side planes, and adjacent blind rivets are abutted against each other through the side planes.

[0042] In an optional embodiment, in the direction in which the plurality of blind rivets are arranged, the width of the rivet cap is equal to the outer diameter of the tube body.

[0043] The gun head module and the rivet gun having the gun head module provided by the present disclosure have at least the following beneficial effects: in the gun head module of the embodiment of the present disclosure, since the nail inlet and the nail rod outlet are relatively arranged, the detachment action of the nail rod of the previous blind rivet and the nailing action of the next blind rivet can be performed almost simultaneously, which greatly reduces the time that the broken nail rod occupies the rivet moving channel, thereby greatly improving the efficiency of the riveting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0045] Figure 1 A schematic structural diagram of a gun head module provided by the first exemplary embodiment of the present disclosure in a state of being about to perform a core pulling operation;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure of the gun head module in the state of completing the core pulling operation;

[0047] Figure 3 for Figure 1 A schematic diagram of the structure of the gun head module in the state of being about to spit out the nail rod;

[0048] Figure 4 for Figure 1 A schematic diagram of the structure of the gun head module in the state of completing the nailing operation;

[0049] Figure 5 A schematic structural diagram of a gun head module provided for a second exemplary embodiment of the present disclosure in a state of being about to perform a core pulling operation;

[0050] Figure 6 for Figure 5 A schematic diagram of the structure of the gun head module in the state of completing the nailing operation;

[0051] Figure 7 A schematic structural diagram of a gun head module provided for a third exemplary embodiment of the present disclosure in a state where a rivet is pushed forward;

[0052] Figure 8 A schematic structural diagram of a gun head module provided for a fourth exemplary embodiment of the present disclosure;

[0053] Fig. 9 A schematic structural diagram of a gun head module provided for a fifth exemplary embodiment of the present disclosure;

[0054] Fig.10 A schematic structural diagram of a gun head module provided for a sixth exemplary embodiment of the present disclosure;

[0055] Fig.11 is a schematic structural diagram of a rivet gun according to an embodiment of the present disclosure;

[0056] Fig.12 It is a schematic structural diagram of a blind rivet according to an embodiment of the present disclosure.

[0057] Description of reference numerals:

[0058] 1. Gun head housing; 2. Nail clamping unit;

[0059] 3. Limiting assembly; 4. Blind rivet;

[0060] 5. Clamping force applying unit; 10. Gun head module;

[0061] 11. Accommodating chamber; 12. First guide track;

[0062] 13. Second guide rail; 14. Nail blocking plate guide groove;

[0063] 15. Nail inlet; 16. Nail rod outlet;

[0064] 20. Rivet clip; 21. First clamp plate;

[0065] 22. Second clamping plate; 23. Articulated shaft;

[0066] 24. Roller; 25. Clamp plate connecting block;

[0067] 26. Clamping plate; 27. Tension spring connecting part;

[0068] 28. Clipping opening; 29. ​​Expansion cavity;

[0069] 30. Gun body; 31. Nail blocking plate;

[0070] 32. a nail blocking plate guide portion; 33. a nail blocking plate reset drive portion;

[0071] 34. Slope of nail blocking plate; 35. Rotating shaft;

[0072] 41. Nail cap; 42. Nail rod;

[0073] 43. Pipe body; 44. Nail sleeve;

[0074] 45, convex part;

[0075] 51. Clamping plate; 52. Second elastic component;

[0076] 53. guiding inclined plane; 54. first elastic component;

[0077] 55. Reset drive member; 56. Third elastic component. DETAILED DESCRIPTION

[0078] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0079] The embodiment of the present disclosure provides a gun head module 10 suitable for a rivet gun and a rivet gun having the gun head module 10. The rivet gun includes a gun body 30 and a gun head module 10 connected to the gun body 30. For example, but not limited to, the rear end of the gun head module 10 can be connected to the gun body 30, but not limited thereto. The rivet gun according to the embodiment of the present disclosure can use a blind rivet 4 to perform riveting connection between two or more workpieces.

[0080] Figures 1 to 4 The schematic diagram of the structure of the gun head module 10 according to the first embodiment of the present disclosure is shown. Referring to the drawings, the gun head module 10 includes a gun head housing 1 and a nail clamping unit 2 arranged in the gun head housing 1. The gun head housing 1 has a receiving cavity 11 extending along a first direction. The front end of the gun head housing 1 in the first direction has a nail outlet connected to the receiving cavity 11. The gun head housing 1 is also provided with a nail inlet 15 and a nail rod outlet 16 (such as Fig.11 As shown in the figure, in a second direction perpendicular to the first direction, the nail inlet 15 and the nail rod outlet 16 are arranged on the gun head housing 1 opposite to each other. The nail clamping unit 2 has a nail clamping opening 28 for clamping the nail rod 42 of the blind rivet 4. The blind rivet 4 can enter the nail clamping opening 28 through the nail inlet 15, and the nail rod 42 of the blind rivet 4 after being pulled apart can be separated from the nail clamping opening 28 and fall or pop out through the nail rod outlet 16.

[0081] In this embodiment, the blind rivet 4 includes a shank 42 and a shank 44 sleeved outside the shank 42 . Specifically, the shank 44 includes a tube body 43 and a shank cap 41 disposed at a first end of the tube body 43 .

[0082] like Figure 1As shown, after the blind rivet 4 is loaded through the nail entry port 15, the nail clamping unit 2 can carry the blind rivet 4 and move forward in the accommodating chamber 11 to move the nail sleeve 44 of the blind rivet 4 through the nail outlet mouth to the outside of the nail outlet mouth. After the tube 43 of the blind rivet 4 is inserted into the rivet hole of the connecting piece, the nail clamping unit 2 can move backward and pull the blind rivet 4 to realize the riveting of the connected piece, and continue to move toward the rear end with the broken nail rod 42 to perform the nailing operation and riveting operation of the next blind rivet 4.

[0083] Specifically, the clamping opening 28 of the clamping unit 2 is configured to be closable and openable. When the clamping opening 28 is closed, the clamping unit 2 can clamp the nail rod 42 of the blind rivet 4. When the clamping opening 28 is opened, the clamping unit 2 can release the nail rod 42 of the blind rivet 4. The nail clamping mouth is located at the front end of the nail clamping unit 2 and is set toward the nail outlet mouth. The nail clamping mouth is used to clamp the nail rod 42 of the blind rivet 4. The nail clamping unit 2 can move back and forth along the first direction in the accommodating chamber 11. When the nail clamping unit 2 moves forward, the nail clamping mouth can be tightened, so as to clamp the nail rod 42. After completing the riveting operation, the nail clamping unit 2 can carry the broken nail rod 42 and move along the first direction toward the rear end of the accommodating chamber 11. When the nail clamping unit 2 moves backward to a predetermined position and the nail clamping mouth is in a position corresponding to the nail entry port 15 and the nail rod outlet 16, the nail clamping mouth can be opened, so as to release the nail rod 42, so that the nail rod 42 can be disengaged from the nail rod outlet 16, and the next blind rivet 4 can enter the nail clamping mouth through the nail entry port 15.

[0084] According to the gun head module 10 of the embodiment of the present disclosure, since the nail inlet 15 and the nail rod outlet 16 are relatively arranged, the disengagement action of the nail rod 42 of the previous blind rivet 4 and the nailing action of the next blind rivet 4 can be performed almost simultaneously, which greatly reduces the time that the nail rod 42 after being pulled apart occupies the rivet moving channel, thereby greatly improving the efficiency of the riveting operation.

[0085] As an example, the nail rod 42 can pop out from the clamping port under the pressure of the next blind rivet 4, and a nail rod collection bag can also be connected to the nail rod outlet 16 to prevent the nail rod 42 from scattering everywhere or popping out and causing injury, thereby improving the reliability of the gun head module 10.

[0086] In order to improve the riveting efficiency of the rivet gun, the rivet gun also includes a rivet clip 20, which includes a clip shell, a rivet row arranged in the clip shell, and a nail-out driving unit. The rivet row includes a plurality of blind rivets 4 arranged side by side. The first end of the clip shell has an opening and is connected to the nail entry port 15. The nail-out driving unit is arranged at the second end of the clip shell opposite to the first end, and applies an extrusion force to the rivet row, so that a blind rivet 4 located at the first end of the rivet row enters the clamping port through the nail entry port 15.

[0087] This embodiment provides the possibility of automatic continuous nailing by providing the rivet clip 20, reduces the number of manual nailing times, and thus improves the riveting efficiency. Furthermore, the nail-out driving unit can make the blind rivet 4 at the first end of the rivet row automatically enter the nail inlet 15, and at the same time, under the action of the nail-out driving unit, the last broken nail rod 42 can quickly move toward the nail rod outlet 16 and leave the nail rod outlet 16, so that under the action of the nail-out driving unit, the rivet gun can achieve rapid nailing, thereby further improving the riveting efficiency.

[0088] Furthermore, the rivet gun further includes a rivet driving unit, which is connected to the clamping unit 2 and can apply a driving force to the clamping unit 2 to move the clamping unit 2 forward and backward along a first direction. The present disclosure drives the clamping unit 2 to move along the first direction by the rivet driving unit, thereby opening or clamping the clamping opening of the clamping unit 2.

[0089] The rivet gun provided by the present invention has a nail outlet mouth arranged at the front end of the gun head shell 1, and has a nail inlet 15 and a nail rod outlet 16 arranged oppositely on both sides of the second direction, and a rivet clip 20 is connected to the gun head shell 1. The nail outlet drive unit can make the broken nail rod 42 automatically leave the nail clamping port and leave the gun head module 10 through the nail rod outlet 16, and the core-pulling rivet 4 at the first end of the rivet row automatically enters the nail clamping port through the nail inlet 15. Through the cooperation of the gun head module 10 and the rivet clip 20, the number of manual nailing times is reduced, and the riveting efficiency of the rivet gun is improved.

[0090] The specific structure of the gun head module 10 provided by multiple embodiments of the present disclosure will be described in further detail below with reference to the accompanying drawings.

[0091] Continue to refer to Figures 1 to 4 A guide track is provided in the gun head housing 1 for guiding the movement of the nail clamping unit 2 and guiding the closing and opening of the nail clamping opening to improve the movement accuracy and use reliability of the nail clamping unit 2. The guide track includes a first track segment and a second track segment. When the nail clamping unit 2 is located in the first track segment, the nail clamping opening can clamp the nail rod 42. When the nail clamping unit 2 is located in the second track segment, the nail clamping opening can open to release the nail rod 42.

[0092] As an example, this embodiment is described by taking the connection between the first track segment and the second track segment as an example. The first track segment is located on the side close to the nail outlet mouth relative to the second track segment. The nail clamping unit 2 can move along the first track segment in the accommodating cavity 11 to enter the second track segment, but is not limited to this.

[0093] As an example, the first track segment and the second track segment form a straight line segment inclined outward from front to back relative to the movement path of the blind rivet 4. In an optional embodiment, the first track segment and the second track segment may have the same inclination slope, but not limited thereto. As required, the first track segment and the second track segment may have different slopes, for example, but not limited to, the slope of the first track segment is smaller than the slope of the second track segment.

[0094] In an optional embodiment, the first track segment is parallel to the movement path of the blind rivet 4, and the second track segment is farther from the movement path of the blind rivet 4 than the first track segment. In this embodiment, the second track segment can be parallel to the movement path of the blind rivet 4, and a transition segment is further provided between the first track segment and the second track segment, and the transition segment can smoothly transition with the first track segment and the second track segment, respectively, but is not limited thereto.

[0095] The first track segment and the second track segment can be arranged to be connected to each other or to be arranged separately. When the first track segment and the second track segment are arranged separately, the first track segment can be located in front of the second track segment or in the rear of the second track segment, as long as the clamping nail unit 2 can be guided so that the clamping nail mouth can be closed and opened during the movement of the clamping nail unit 2.

[0096] Continuing to refer to the accompanying drawings, as an example, the first track segment extends parallel to the first direction, the front end of the first track segment is arranged near the nail outlet mouth, and the second track segment extends outwardly from the rear end of the first track segment from front to back along the radial inclination of the gun head module. When the nail clamp unit 2 moves backward under the guidance of the second track segment, the clamping force of the nail clamp mouth on the nail rod 42 gradually decreases. When the nail clamp unit 2 is located at the predetermined position, the nail clamp mouth can release the nail rod 42, at which time the nail rod 42 is easy to disengage, and it is also convenient for the nail rod 42 of the new blind rivet 4 to enter the nail clamp mouth again. Optionally, when the nail clamp unit 2 is located at the predetermined position, the nail clamp unit 2 can move to the right end along the second track segment, but is not limited to this.

[0097] In this embodiment, by providing the second track segment, the nail clamping position and nail releasing position of the nail clamping opening can be accurately controlled, thereby improving the reliability of the gun head module.

[0098] Optionally, when the clamping unit 2 moves backward to the position where the clamping mouth can be opened, the next blind rivet 4 can enter the clamping mouth through the nail inlet 15. For example, but not limited to, the new blind rivet 4 in the rivet clip 20 enters the clamping mouth through the nail inlet 15 under the action of the nail driving part. At the same time, the broken nail rod 42 in the clamping mouth will be pushed out of the clamping mouth by the new blind rivet 4 and pushed toward the nail rod outlet 16, and then leave the gun head module 10 through the nail rod outlet 16.

[0099] As an example, the guide track is formed by the inner side wall of the gun head housing 1 (not shown) or is a track groove formed on the inner side wall of the gun head housing 1, such as Figures 1 to 4 As shown, the accommodating cavity 11 is used to accommodate the main structure of the clamping nail unit 2. A track groove connected to the accommodating cavity 11 is provided on the outside of the accommodating cavity 11. A part of the clamping nail unit 2 extends into the track groove, so that the track groove guides the clamping nail unit 2.

[0100] In an optional embodiment, the guide track is a cavity wall of the accommodating cavity 11 , and the accommodating cavity 11 shrinks from the back to the front, and the cavity wall will be used to guide the clamping nail unit 2 , but the present invention is not limited thereto.

[0101] The gun head housing 1 provided in the present invention is provided with a guide track, which can be used to guide the nail clamping unit 2 to move along the first direction while adjusting the size of the nail clamping opening so as to be able to open and close. For example, but not limited to, the nail clamping opening can accurately loosen and clamp the nail at the nail entry opening 15, and when it is far away from the nail entry opening 15 and close to the nail outlet mouth, the nail rod 42 can be kept clamped without loosening, thereby improving the reliability of the gun head module 10.

[0102] Continuing to refer to the accompanying drawings, the nail clamp unit 2 includes at least two nail clamp plates 26, and the at least two nail clamp plates 26 are arranged at intervals along the circumference of the gun head housing 1. The nail clamping opening is formed between the at least two nail clamp plates 26. When the nail clamp unit 2 is located in the first track section, the at least two nail clamp plates 26 are retracted, and the nail clamping opening is retracted to clamp the nail rod 42. When the nail clamp unit 2 is located in the second track section, the distance between the at least two nail clamp plates 26 increases, and the nail clamping opening opens to release the nail rod 42, allowing the next blind rivet 4 to enter the nail clamping opening.

[0103] The nail clamp unit 2 provided by the present disclosure includes at least two nail clamp plates 26 arranged at intervals along the circumference of the gun head housing 1, so that the at least two nail clamp plates 26 can be gathered toward the center to reduce the clamping cross-section of the nail clamping opening, thereby being able to clamp the nail rod 42. The nail clamp unit 2 is configured to be provided with at least two nail clamp plates 26 along the circumference of the gun head housing 1, so that the nail rod 42 can be clamped by at least two nail clamp plates 26 in the circumferential direction, so that the circumferential force on the nail rod 42 is more uniform, further improving the reliability of the use of the nail clamp unit 2. As an example, at least two nail clamp plates 26 are evenly arranged along the circumference of the gun head housing 1, but this is not limited to this.

[0104] For the convenience of description, the present disclosure will be described by taking the example that the clamping unit 2 includes two clamping plates 26 , and the clamping plates 26 include a first clamping plate 21 and a second clamping plate 22 .

[0105] like Figures 1 to 4As shown, in the first embodiment according to the present disclosure, the first nail plate 21 and the second nail plate 22 are cross-arranged, and the first nail plate 21 and the second nail plate 22 form a scissors structure through a hinge shaft 23, and the front side opening of the scissors structure forms a nail clamping opening, so that the first nail plate 21 and the second nail plate 22 are connected together through the hinge shaft 23, so that the two nail plates 26 can maintain synchronous movement along the first direction, thereby improving the reliability of the use of the nail clamp unit 2.

[0106] In this embodiment, the guide rails correspond to the clamping plates 26 one by one, and each clamping plate 26 can move along the corresponding guide rail.

[0107] The guide rail includes a first guide rail 12 and a second guide rail 13 , and the first clamping nail plate 21 and the second clamping nail plate 22 correspond to the first guide rail 12 and the second guide rail 13 , respectively.

[0108] The first clamping plate 21 and the second clamping plate 22 are symmetrically arranged relative to the blind rivet 4, and the first guide rail 12 and the second guide rail 13 are spaced and symmetrically arranged relative to the blind rivet 4, which further improves the movement accuracy of the clamping unit 2 and avoids the blind rivet 4 from running off, thereby further improving the reliability of the clamping unit 2.

[0109] Specifically, the distance between the two second track segments is greater than the distance between the two first track segments, so that the clamping opening is closed when the clamping unit 2 is located in the first track segment and can be opened when it is located in the second track segment. As an example, the two first track segments are arranged in parallel, and the two second track segments extend outwardly from front to back relative to the first track segment to be away from each other.

[0110] As an example, the clamp unit 2 also includes a clamp plate guide portion, for example but not limited to, the clamp plate guide portion is formed as a slider protruding relative to the clamp plate 26, and the slider can be set in a guide track and slide along the guide track, and the guide track is used to guide the movement of the clamp plate guide portion, thereby guiding the movement of the clamp plate 26.

[0111] Optionally, a roller 24 is provided on the guide portion of the clamping plate, and the roller 24 is rotatably provided in the guide track, so that the guide portion of the clamping plate and the guide track are in rolling contact, thereby reducing the friction between the guide portion of the clamping plate and the guide track. As an example, the diameter of the roller 24 is the same as the groove width of the corresponding guide track, so that the roller 24 can roll in the guide track, avoiding the roller 24 from moving relative to the guide track, thereby further improving the reliability of the gun head module.

[0112] In order to further improve the reliability of the use of the gun head module 10, the gun head module 10 also includes a clamping force applying unit 5, which is arranged in the gun head housing 1, and is used to apply a clamping force to the nail clamping plate 26 to keep the nail clamping mouth clamped, so that when the nail clamping unit 2 is located in the first track section, it can clamp the nail rod 42 to maintain the clamping state and nail clamping stability of the nail clamping mouth during the nail feeding process and the nail pulling process.

[0113] According to an embodiment of the present disclosure, the clamping force applying unit 5 may be disposed at the front end of the scissors structure or at the rear end of the scissors structure. Figure 1 In the illustrated embodiment, the clamping force applying unit 5 is disposed at the rear end of the clamping nail unit 2 .

[0114] Reference Figures 1 to 4 For the convenience of description, the clamping force applying unit 5 in this embodiment includes a first elastic component 54, which is arranged at the rear ends of the first clamping plate 21 and the second clamping plate 22, and applies a pulling force or a squeezing force to the rear end of the scissors structure to close the scissors structure.

[0115] exist Figure 1 In the example shown, the first elastic component 54 applies a pulling force to close the clamping opening to the first clamping plate 21 and the second clamping plate 22. Specifically, the first elastic component 54 includes a tension spring, and both ends of the tension spring are respectively connected to the rear end of the first clamping plate 21 and the rear end of the second clamping plate 22, so that the rear end of the first clamping plate 21 and the rear end of the second clamping plate 22 are close to each other, thereby achieving the closure of the clamping opening.

[0116] As an example, the rear ends of the first clamping nail plate 21 and the rear ends of the second clamping nail plate 22 are respectively provided with tension spring connecting parts 27 , and both ends of the tension spring are respectively connected to the two tension spring connecting parts 27 , and the tension spring maintains a stretched state.

[0117] In this embodiment, by providing the first elastic component 54, the nail clamping unit 2 can maintain the clamping state of the nail rod 42 when it is located in the first track segment. Figure 1 and Figure 2 When the clamping nail unit 2 moves from front to back in the second track segment, due to the guidance of the second track segment, it is possible to overcome the force applied by the first elastic component 54, so that the clamping nail opening is opened, as shown Figure 3 and Figure 4 After the nailing action is completed, the nail clamping unit 2 moves forward from the back and enters the first track section. Under the action of the first elastic component 54, the front ends of the two nail clamping plates 26 move closer to each other to clamp the nail rod 42, and then the next nail feeding and riveting operation is carried out. Fig. 9 shown.

[0118] like Figure 8As shown, according to another embodiment of the present disclosure, the first elastic component 54 can also be disposed outside the rear ends of the two clamping plates 26 to apply a squeezing force to the clamping plates 26 from outside the rear ends of the two clamping plates 26. As an example, the first elastic component 54 includes an elastic component such as a compression spring or rubber.

[0119] In an optional embodiment, the clamping force applying unit 5 can also be arranged at the front end of the two clamping plates 26. However, considering that the front end space of the clamping plates 26 is limited, setting the spring group on the inner side of the clamping plates 26 increases the process difficulty. The clamping force applying unit 5 can also be arranged on the outer side of the clamping plates 26 to apply a squeezing force to the clamping plates 26 to make the clamping plates 26 close together. For a detailed description, see Figure 5 The second elastic component 52 will be described in detail below.

[0120] In order to further improve the reliability of the gun head module 10, the gun head module 10 also includes a stopper assembly 3, which is used to stop at the rear side of the nail cap 41 of the blind rivet 4. Specifically, after the nail clamping unit 2 completes the nail feeding operation, the nail sleeve 44 will be located outside the nail outlet mouth to facilitate insertion into the riveting hole of the workpiece, and the stopper assembly 3 will be located at the rear side of the nail cap 41 to stop the nail sleeve 44. In the process of the nail clamping unit 2 pulling the nail rod 42 backward, the stopper assembly 3 will abut against the rear side of the nail cap 41 to prevent the nail sleeve 44 from moving backward with the nail clamping unit 2 and returning to the accommodating cavity 11 again, ensuring the riveting operation.

[0121] Specifically, the limiting assembly 3 is arranged in the accommodating cavity 11 and at the nail outlet mouth, and a nail outlet channel is arranged between the limiting assembly 3, and the nail outlet channel can be opened and closed. Under normal conditions, the nail outlet channel is in a closed state. When the clamping unit 2 carries the blind rivet 4 and moves toward the nail outlet mouth, the nail sleeve 44 of the blind rivet 4 can open the nail outlet channel. After the nail sleeve 44 is sent out, the limiting assembly 3 can be reset to abut against the rear side of the nail cap 41 to prevent the blind rivet 4 from retreating.

[0122] Continue to refer to Figures 1 to 4 The position limiting assembly 3 includes a nail blocking plate 31 and a nail blocking plate reset driving unit 33. The nail blocking plate 31 is arranged at the nail outlet mouth, and can open the nail outlet mouth when the clamping unit 2 sends the nail to the nail outlet mouth, and reset under the drive of the nail blocking plate reset driving unit 33 after the clamping unit 2 sends the nail sleeve 44 of the blind rivet out of the nail outlet mouth. Specifically, the nail blocking plate reset driving unit 33 applies a driving force to the nail blocking plate 31 to close the nail outlet mouth. When the clamping unit 2 carries the blind rivet 4 and moves toward the nail outlet mouth, it abuts against the nail blocking plate 31, overcomes the resistance of the nail blocking plate reset driving unit 33, and opens the nail outlet mouth to the extent that the nail cap 41 can pass through.

[0123] The sending of the blind rivet 4 out of the rivet nozzle mentioned here does not require the nail cap 41 to be completely located outside the gun head shell 1, and it can still be located inside the gun head shell 1, as long as the nail cap 41 is located outside the limiting component 3 and the nail sleeve 44 can be inserted into the riveting hole for riveting operation.

[0124] The nail blocking plate 31 can be set to one or more, as long as it can stop at the rear side of the nail cap 41 after the nail feeding operation is completed. In the embodiment of the present disclosure, in order to improve the force uniformity of the blind rivet 4, at least two nail blocking plates 31 are set, and at least two nail blocking plates 31 are arranged at intervals around the circumference of the nail outlet. As an example, at least two nail blocking plates 31 are symmetrically arranged relative to the blind rivet 4, so that the blind rivet 4 is symmetrically stressed, ensuring the accurate positioning of the blind rivet 4.

[0125] As an example, at least two nail blocking plates 31 are arranged in parallel, and each nail blocking plate 31 translates radially along the nail-exiting channel. In order to ensure the stability of the movement of the nail blocking plate 31, a nail blocking plate guide groove 14 extending radially along the nail-exiting channel is arranged on the gun head housing 1, and a nail blocking plate guide portion 32 matching the nail blocking plate guide groove 14 is arranged on the nail blocking plate 31, and the nail blocking plate guide portion 32 is movably arranged in the nail blocking plate guide groove 14 and moves along the nail blocking plate guide groove 14.

[0126] Continuing to refer to the drawings, the nail blocking plate reset driving unit 33 includes a third elastic component, which is arranged on the outside of the nail blocking plate 31, and applies a squeezing force toward the nail outlet channel to each nail blocking plate 31, so that the two nail blocking plates 31 remain retracted, or have a tendency to retract. In an optional embodiment, the nail blocking plate reset driving unit 33 includes a rubber ring (not shown), which is sleeved on the outside of the nail blocking plate 31 along the circumference of the accommodating cavity 11, so that the nail blocking plate 31 has a retracting force.

[0127] As an example, the inner side of the nail blocking plate 31 is provided with a nail blocking plate inclined surface 34 extending inwardly from back to front. During the forward movement of the blind rivet 4, the force exerted by the blind rivet 4 on the nail blocking plate inclined surface 34 has a thrust along the extension direction of the nail blocking plate guide groove 14, thereby pushing the nail blocking plate 31 to move.

[0128] When the clamping unit 2 moves forward with the blind rivet 4, the nail sleeve 44 of the blind rivet 4 abuts against the nail blocking plate 31, pushing the nail blocking plate 31 so that the nail blocking plate 31 moves radially outward along the nail output channel. At this time, the nail output channel is forced to open to the extent of allowing the nail sleeve 44 to pass through. After the nail cap 41 passes through the nail blocking plate 31, the nail blocking plate 31 is reset under the action of the nail blocking plate reset driving part 33 to stop the nail cap 41 of the blind rivet 4, preparing for the clamping unit 2 to pull the nail rod 42 backward to perform the riveting work.

[0129] The present invention provides a nail blocking plate resetting driving part 33 on the outer side of the nail blocking plate 31, so that the nail blocking plate 31 can be automatically reset, thereby improving the reliability of the rivet gun.

[0130] As mentioned above, the gun head housing 1 is provided with a nail blocking plate guide groove 14 extending in the second direction, and the nail blocking plate guide portion 32 can reciprocate along the nail blocking plate guide groove 14. As an example, the nail blocking plate guide portion 32 can be a slider protruding relative to the nail blocking plate 31, and the slider can be inserted into the nail blocking plate guide groove 14 and slide in the nail blocking plate guide groove 14. Furthermore, a roller is provided on the nail blocking plate guide portion 32, so that the nail blocking plate 31 rolls in contact with the nail blocking plate guide groove 14 during the reciprocating movement, thereby reducing the friction between the two and the wear caused by the friction.

[0131] Figures 1 to 4 A schematic structural diagram of the gun head module 10 in different operating states according to the first embodiment of the present disclosure is shown, and the working process of the riveting operation is explained in sequence.

[0132] like Figure 1 As shown, the rivet gun has completed the nail feeding operation. At this time, the nail sleeve 44 of the blind rivet 4 is located outside the nail outlet and the rear side of the nail cap 41 is against the nail blocking plate 31, so that the nail cap 41 is limited by the nail blocking plate 31. At this time, the guide part of the clamping plate is located at the front end of the first track section, and the clamping plate 26 is in a state of clamping the nail rod 42 of the blind rivet 4, so as to perform the riveting operation of pulling the nail rod 42 backward. After the nail rod 42 is pulled off, the riveting operation of the blind rivet is completed.

[0133] Reference Figure 2 , the nail clamp unit 2 is in the first track section, and the riveting operation has been completed. The nail clamp unit 2 carries the broken nail rod 42 and moves backward, and the nail clamp plate guide is located at the rear end of the first track section. Figure 1 Move to the middle position Figure 2 In the process of the nail clamping unit 2 moving backward along the first track segment, the rear ends of the nail clamping plates 26 are pulled toward each other by the first elastic component 54, so that the nail clamping openings keep clamping the nail rod 42 without loosening.

[0134] Reference Figure 3 , the nail clamping unit 2 will continue to move backward and enter the second track section, the nail clamping opening will open, and the nail rod 42 can leave from the nail clamping opening. Figure 2 Move to the middle position Figure 3During the process of positioning, the first clamping plate 21 and the second clamping plate 22 will rotate around the hinge shaft 23 to open the clamping mouth. At the same time, the rear ends of the first clamping plate 21 and the second clamping plate 22 will move away from each other, and the first elastic component 54 will be further stretched. As shown in the figure, as an example, the clamping plate guide portion of the clamping unit 2 is located at the rear end of the second track segment. At this time, the clamping mouth is opened, the broken nail rod 42 can be separated from the clamping mouth, and the new blind rivet 4 can enter the clamping mouth to realize the nailing operation of the blind rivet 4.

[0135] Reference Figure 4 , the broken nail rod 42 has been separated from the clamping port, and the new blind rivet 4 has been fed into the clamping port. Taking the rivet gun equipped with a rivet clip 20 as an example, under the driving action of the nail driving part of the rivet clip 20, the new blind rivet 4 is pushed into the clamping port through the nail inlet 15. At the same time, the broken nail rod 42 will be pushed to the nail rod outlet 16, so as to complete the tail nail removal and the next rivet nailing operation with high efficiency. Figure 4 , the nail clamping unit 2 will move from the rear to the front of the second track section relative to the gun head housing 1. Under the guidance of the second track section, the nail clamping plates 26 will move closer to each other to close the nail clamping opening. At the same time, under the action of the first elastic component 54, the rear end of the first nail clamping plate 21 and the rear end of the second nail clamping plate 22 are close to each other, so that the nail clamping opening is closed to clamp the nail rod 42. Through the cooperation of the first elastic component 54 and the guide track, the reliability of the gun head module 10 is further improved.

[0136] Figure 5 and Figure 6 A structural diagram of a gun head module provided for a second exemplary embodiment of the present disclosure. Different from the first exemplary embodiment, in this embodiment, at least two nail clamping plates 26 are arranged in parallel in the gun head housing 1 and are separated by a predetermined gap to form a nail clamping opening.

[0137] For the convenience of description, this embodiment is described by taking the example that the clamping unit 2 includes two clamping plates 26. The clamping plates 26 include a first clamping plate 21 and a second clamping plate 22, the guide track includes a first guide track 12 and a second guide track 13, and the first clamping plate 21 and the second clamping plate 22 correspond to the second guide track 13 and the first guide track 12 respectively, the first clamping plate 21 will move along the second guide track 13, and the second clamping plate 22 will move along the first guide track 12.

[0138] exist Figure 5In the example shown, the clamping force applying unit 5 is disposed on the outside of the nail clamping unit 2 to apply a squeezing force to the nail clamping unit 2 to bring at least two nail clamping plates 26 together. Specifically, the clamping force applying unit 5 includes a second elastic component 52, which is disposed on the outside of the nail clamping plate 26 and close to the nail outlet. For example, but not limited to, the second elastic component 52 is disposed between the limiting component 3 and the guide track along the first direction.

[0139] In order to facilitate the second elastic component 52 to apply extrusion force to the clamping plate 26 and make the force evenly distributed, the clamping force applying unit 5 also includes at least two clamping plates 51, at least two clamping plates 51 are arranged on the outside of the clamping unit 2, and at least two clamping plates 51 are arranged at intervals along the circumference of the accommodating cavity 11, and at least one clamping plate 51 is arranged on the outside of each clamping plate 26. The second elastic component 52 includes at least two first spring groups, and at least two first spring groups are respectively abutted against the outside of at least two clamping plates 51 to apply extrusion force to the clamping plates 51, and then apply extrusion force to the clamping plates 26 through the clamping plates 51.

[0140] For the convenience of description, this embodiment is described by taking the example that the clamping force applying unit 5 includes two clamping plates 51 , but the present invention is not limited thereto.

[0141] In order to make the clamping plate 51 bear force evenly and further improve the reliability of the gun head module 10, a plurality of second elastic components 52 are arranged on the outer side of each clamping plate 51. The plurality of second elastic components 52 are arranged at intervals along the first direction. In this embodiment, three second elastic components 52 are arranged on the outer side of each clamping plate 51 as an example for explanation.

[0142] Specifically, in this embodiment, the second elastic component 52 includes a compression spring, which extends substantially along the radial direction of the accommodating cavity 11 , and two ends of the spring respectively abut against the outer wall of the clamping plate 51 and the gun head housing 1 .

[0143] In an optional embodiment, the second elastic component 52 may be a rubber ring in a stretched state (not shown), which is sleeved on the outer side of the clamping plate 51 along the circumference of the accommodating cavity 11 so that the clamping plate 51 has a contracting force.

[0144] In this embodiment, the clamping plate 51 is located on the side of the accommodating cavity 11 close to the nail outlet. As an example, the clamping plate 51 is arranged between the limiting assembly 3 and the guide track along the first direction. When the nail clamping unit 2 is located in the first track section, the clamping plate 51 abuts against the nail clamping plate 26 (such as Figure 5 As shown in FIG. 2 , when the clamping plate guide portion of the clamping unit 2 enters the second track segment, the clamping plate 26 moves to the rear end of the clamping plate 51 and separates from the clamping force applying unit 5 (as shown in FIG. 2 ). Figure 6As shown in FIG. 5 ), under the action of the second elastic component 52, the clamping plate 51 is reset. When the force of the clamping force applying unit 5 is removed, the clamping opening is more easily opened, so as to facilitate the removal of the nail rod 42 and the insertion of the next blind rivet 4. In this embodiment, the stroke of the clamping unit 2 along the first direction is generally not less than the length of the clamping plate 51 along the first direction, but is not limited thereto.

[0145] Continue to refer to Figure 5 and Figure 6 The rear end of the clamping plate 51 and the front end of the nail clamping plate 26 have facing guide slopes 53, so that the nail clamping plate 26 can push the clamping plate 51 away, thereby entering between at least two clamping plates 51. The figure shows the guide slope 53 of the clamping plate 51, which gradually extends outward from front to back. In this way, the nail clamping unit 2 is easily inserted into the inner side of at least two clamping plates 51, thereby further improving the reliability of the gun head module.

[0146] Continue to refer to Figure 5 and Figure 6 According to an optional embodiment of the present disclosure, the clamping force applying unit 5 can also be arranged on the inner side of the clamping nail unit 2 to apply a pulling force to the clamping nail plate 26 to retract inward. Specifically, the clamping force applying unit 5 includes a third elastic component 56, and the third elastic component 56 includes a plurality of tension springs. In this embodiment, the clamping force applying unit 5 can include a second elastic component 52 arranged on the outer side of the clamping nail plate 26 and a third elastic component 56 arranged on the inner side of the clamping nail plate 26.

[0147] Continue to refer to Figure 5 and Figure 6 In order to make at least two clamping plates 26 move synchronously along the first direction, the clamping unit 2 further includes a clamping plate connecting block 25, and the two clamping plates 26 are connected to the clamping plate connecting block 25. In an optional embodiment, the rear end of the clamping plate 26 is connected to the clamping plate connecting block 25. The rear end of the clamping plate 26 has one of a pin and a long hole, and the clamping plate connecting block 25 has the other of the pin and the long hole. The long hole extends along a third direction perpendicular to the first direction, and the pin can be slidably inserted into the long hole. When the clamping unit 2 moves in the second track, the pin moves along the long hole in the third direction, thereby avoiding interference with the opening and closing operation of the clamping plate 26. In addition, through the joint guidance of the long hole and the second track segment, the stability and accuracy of the moving direction and distance of the clamping plate 26 can be ensured.

[0148] Further, in an optional embodiment of the present disclosure, the rivet driving unit further includes a reset driving member 55, which is connected to the clamping unit 2 and is used to apply a driving force toward the nail outlet mouth to the clamping unit 2. As an example, the reset driving member 55 includes a compression spring, which is in a compressed state, and the two ends of the compression spring are respectively abutted between the clamping unit 2 and the cavity wall of the accommodating cavity 11. In the process of the clamping unit 2 moving backward under the action of the driving force to perform the rivet pulling action, the reset driving member 55 is compressed. After the driving force for the clamping unit 2 to move backward is removed, the clamping unit 2 can carry the blind rivet 4 to the nail outlet mouth under the drive of the reset driving member 55.

[0149] Figure 7 A schematic diagram of the structure of the gun head module 10 provided as the third exemplary embodiment of the present disclosure. In the third exemplary embodiment, the nail clamping unit 2 has the same structure as the nail clamping unit 2 in the first embodiment, and also adopts a scissors structure in which the nail clamping plates 26 are cross-arranged. What is different from the first embodiment is that the setting position and structure of the clamping force applying unit 5 are different. In the third embodiment, the clamping force applying unit 5 includes a second elastic component 52, and the second elastic component 52 is arranged on the outside of the nail clamping plate 26 and close to the nail outlet. The clamping force is applied to the nail clamping plate 26 from the side where the nail clamping mouth is located, so that the clamping force is more stably transmitted to the nail clamping mouth. Figure 5 The example shown is the same, and the second elastic component 52 is arranged between the limiting component 3 and the guide track along the first direction.

[0150] In order to keep the force on the clamping nail unit 2 uniform, the clamping force applying unit 5 also includes at least two clamping plates 51, and at least two second elastic components 52 are arranged on the outer side of each clamping plate 51. The at least two second elastic components 52 are arranged on the corresponding clamping plates 51 at intervals along the first direction to apply extrusion force to the clamping plates 51. As an example, the second elastic component 52 includes a compression spring, which extends roughly along the radial direction of the accommodating cavity 11, and the two ends of the spring are respectively pressed between the outer wall of the clamping plate 51 and the gun head housing 1. In an optional embodiment, the second elastic component 52 can be a rubber ring in a stretched state (not shown in the figure), which is sleeved on the outer side of the clamping plate 51 along the circumference of the accommodating cavity 11, so that the clamping plates 51 have a force to retract.

[0151] In this embodiment, the clamping force applying unit 5 includes at least two clamping plates 51 , which are arranged outside the clamping plates 26 along the circumference of the accommodating cavity 11 so as to apply a force to the clamping plates 26 to make the clamping plates 26 collapse.

[0152] In order to further ensure the clamping force of the nail rod 42 by the nail clamping unit 2 during the process of pulling the nail rod 42 backwards, a tooth-shaped protrusion can also be provided on the inner side of the nail clamping opening to increase the friction between the nail rod 42 and prevent the nail rod 42 from slipping out of the nail clamping opening 28 during the process of pulling backwards.

[0153] Figure 8 The schematic diagram of the structure of the gun head module provided for the fourth exemplary embodiment of the present disclosure is different from the first embodiment in that the clamping force applying unit 5 includes two first elastic components 54 arranged opposite to each other, and applies elastic squeezing force to the clamping plates 26 on the outer sides of the two clamping plates 26 to close the clamping openings. As an example, the first elastic component 54 includes a spring, and the spring is in a compressed state, for example but not limited to, the two ends of the spring are respectively pressed against the outer sides of the clamping plates 26 and between the clamping plate connecting blocks 25, but not limited thereto.

[0154] Fig. 9 A schematic diagram of the structure of a gun head module provided for the fifth exemplary embodiment of the present disclosure. Different from the first exemplary embodiment, at least two nail blocking plates 31 are rotatably arranged in the accommodating chamber 11 through the rotating shaft 35, the nail blocking plates 31 extend along the first direction, and the gap between the front ends of at least two nail blocking plates 31 forms a nail outlet channel, and the nail blocking plate reset driving part 33 is connected between the rear end of the nail blocking plate 31 and the gun head housing 1, and applies an outward pulling force to the rear end of the nail blocking plate 31, or the nail blocking plate reset driving part 33 is arranged on the inner side of the nail blocking plate 31, and the two ends of the nail blocking plate reset driving part 33 are respectively abutted against the rear ends of the two nail blocking plates 31, and apply an outward squeezing force to the nail blocking plates 31.

[0155] In this embodiment, the nail blocking plate 31 rotates around the rotating shaft 35 relative to the gun head housing 1, and the nail blocking plate reset drive part 33 is used to keep the rear end of the nail blocking plate 31 outward, and utilize the lever principle to keep the front end of the nail blocking plate 31 retracted, so as to stop the blind rivet 4.

[0156] Fig.10 The schematic diagram of the structure of the gun head module provided by the sixth exemplary embodiment of the present disclosure is shown. Different from the previously described embodiments, the blind rivet 4 in this embodiment further includes an outer protrusion 45, which is arranged at the tail end of the nail rod 42. The outer protrusion 45 protrudes outward relative to the outer periphery of the tail end of the nail rod 42. The outer diameter of the outer protrusion 45 is greater than the outer diameter of the nail rod 42. The rear end of the clamping nail opening 28 has an expansion cavity 29, and the outer protrusion 45 can be arranged in the expansion cavity 29. In the process of the clamping nail unit 2 moving backward to pull the riveting, the outer protrusion 45 is engaged in the expansion cavity 29, which can prevent the blind rivet 4 from slipping off the clamping nail unit 2, thereby improving the reliability of the gun head module 10.

[0157] Specifically, the head end of the nail rod 42 extends from the second end of the nail sleeve 44 , the tail end of the nail rod 42 extends from the first end of the nail sleeve 44 , and an outer protrusion 45 is provided on the outer periphery of the tail end of the nail rod 42 .

[0158] In this embodiment, in the width direction of the nail cap 41 , the size of the outer protrusion 45 is smaller than or equal to the size of the nail cap 41 . Furthermore, the outer peripheral size of the outer protrusion 45 is larger than the outer diameter of the nail rod 42 and smaller than or equal to the outer diameter of the tube 43 .

[0159] As required, the outer protrusion 45 can be spherical or polygonal, as long as it can protrude outward relative to the outer periphery of the nail rod 42 and can be clamped in the expansion cavity 29, it is within the protection scope of the present disclosure. When the clamping unit 2 moves backward to a predetermined position, the nail rod outlet 16, the nail inlet 15 and the nail clamping port 28 are arranged in a corresponding position, and under the action of the nail driving unit, the nail rod 42 of the blind rivet 4 at the first end of the rivet row can be sent into the nail clamping port 28, and the outer protrusion 45 enters the expansion cavity 29, and can be driven by the clamping unit 2 to move forward and backward along the first direction.

[0160] In the sixth embodiment of the present disclosure, the clamping opening 28 can be set as a fixed opening, which is slightly larger than the outer circumference of the blind rivet 4, so that the blind rivet 4 can smoothly enter the clamping opening 28. In this case, the multiple clamping plates 26 in the previous multiple embodiments can be set as an integrated structure, and the clamping force applying unit 5 in the previous embodiments can be omitted.

[0161] Furthermore, in order to allow the blind rivet 4 to be accurately aligned with the nail outlet, in the second direction where the nail inlet 15 and the nail rod outlet 16 are located, the width of the nail cap 41 of the blind rivet and the width of the outer protrusion 45 can be the same as the outer diameter of the tube 43, so that the blind rivet 4 can fit on the bottom wall of the gun head housing 1 and move forward and backward. Therefore, in the third direction perpendicular to the first direction and the second direction, the outer protrusion 45 is formed on both sides of the tail end of the nail rod 42. In order to allow the broken nail rod 42 to smoothly pop out of the nail outlet, the nail rod outlet 16 also has a shape corresponding to the nail rod 42.

[0162] Although in the sixth embodiment of the present disclosure, the clamping opening 28 is set as a clamping opening of a fixed size, the clamping opening 28 can also be set to be able to open and close, that is, the blind rivet with the outer protrusion 45 in the sixth embodiment can also be applied to the multiple embodiments described above, and an expansion cavity is set at the rear end of the clamping opening 28 that can be opened and closed, which can further ensure the backward pulling force on the nail rod 42 during the riveting operation. By setting the clamping opening to a structure that can be opened and closed, it is easier to nail and eject the nail rod. By providing the outer protrusion 45 at the tail end of the nail rod 42, the resistance to the forward and backward movement of the clamping unit 2 caused by the clamping force applying unit 5 increasing the clamping force in order to clamp the nail rod 42 can be reduced.

[0163] Fig.11 The rivet gun provided according to an embodiment of the present disclosure is shown, including the gun head module 10 described above. Specifically, the rivet gun includes a gun head module 10, a gun body 30, and a detachable and replaceable rivet clip 20. The gun head module 10 is connected to the gun body 30, and the rivet clip 20 is installed on the nail inlet 15 of the gun head module 10. In order to make the support of the rivet clip 20 more stable, the rivet clip 20 can also be connected to the gun body 30.

[0164] The rivet clip 20 includes a clip housing, a rivet row arranged in the clip housing, and a nail-exiting driving unit. The outlet of the clip housing is connected to the nail inlet 15. The nail-exiting driving unit is arranged in the clip housing and is located at the rear end of the rivet row. It applies extrusion force to the rivet row, so that a blind rivet 4 located at the outlet of the clip in the rivet row enters the clamping nail opening through the nail inlet 15. When the clamping nail unit 2 carries the broken nail rod 42 and moves to a position corresponding to the nail inlet 15, the clamping nail opening is released. At this time, the outermost rivet located at the nail inlet in the rivet row enters the clamping nail opening under the action of the nail-exiting driving unit, and squeezes out the previous broken nail rod 42, thereby completing the nail rod ejection action while nailing.

[0165] In order to prevent the next rivet entering the clamping mouth from falling off from the nail rod outlet 16, the length of the nail rod outlet 16 is smaller than the length of the blind rivet 4, and the width of the nail rod outlet 16 is smaller than the width of the nail cap 41, thereby effectively preventing the next blind rivet 4 from falling off or misalignment after being nailed.

[0166] According to an embodiment of the present disclosure, the rivet driving unit is used to apply a driving force to the clamping nail unit 2 to move forward and backward along a first direction. The rivet driving unit can be arranged in the gun head module 10, or arranged on the gun body 30. The rivet driving unit can be manual, electric, pneumatic or hydraulic. For example, the manual rivet driving unit can be a manual trigger arranged on the gun body 30, and the clamping nail unit is pulled backward by the manual trigger. After the rivet action and the nailing operation are completed, the reset spring on the rear side can drive the clamping nail unit 2 to move toward the nail outlet. However, the manual rivet driving unit has a relatively low efficiency and is difficult for workers to operate. Therefore, those skilled in the art can adopt an electric, pneumatic or hydraulic rivet driving unit according to design requirements.

[0167] Further, the nailing power of the rivet clip 20 comes from the nail driving part, which can push the rivet row to move toward the nail inlet 15, so that the blind rivet 4 at the first end of the rivet row can enter the clamping hole through the nail inlet 15. As an example, the nail driving part includes a spring group, for example but not limited to, the spring group is in a compressed state and is compressed and arranged between the second end of the rivet row and the clip housing to push the rivet row to move toward the nail inlet 15, but not limited to this.

[0168] Continue to refer to Fig.11 and Fig.12 The rivet row in the magazine housing includes a plurality of blind rivets 4 arranged side by side, and the side surfaces of the caps 41 of adjacent blind rivets 4 are tightly abutted in the direction in which the blind rivets are arranged. In order to ensure the accurate positioning of each blind rivet 4, according to the blind rivet 4 of the embodiment of the present disclosure, the two opposite side surfaces of the caps 41 are set as a plane structure, and in the direction in which the blind rivets are arranged, the adjacent blind rivets are abutted against each other through the plane, thereby preventing the blind rivets from moving, tilting, shifting, etc. in the rivet magazine.

[0169] In this embodiment, the width of the nail cap 41 is equal to the outer diameter of the tube body 43, and the height of the nail cap 41 is greater than the outer diameter of the tube body 43. Specifically, the blind rivet 4 includes a nail rod 42 and a nail sleeve 44, the nail sleeve 44 includes a tube body 43 and a nail cap 41 connected to a first end of the tube body 43, the tube body 43 is sleeved outside the nail rod 42, the nail cap 41 protrudes outward relative to the outer circumference of the tube body 43, and in the width direction of the nail cap 41, the nail cap 41 has two opposite straight side surfaces.

[0170] In the height direction of the rivet row, the two opposite sides of the nail cap 41 can be arcuate or flat. Furthermore, in the height direction of the rivet row, the two opposite sides of the nail cap 41 are planes, that is, the nail cap 41 is formed into a rectangle, which can further improve the positioning accuracy and stability of the rivet.

[0171] Specifically, in the height direction of the nail cap 41 , the nail cap 41 has two relatively straight side surfaces, and the nail cap 41 is rectangular.

[0172] In addition, in order to facilitate the loading of multiple rivets into the rivet clip, the rivet caps of multiple blind rivets 4 are bonded to each other to form a rivet row, thereby improving the position accuracy and stability of multiple rivets in the rivet clip, and also improving the production efficiency of the rivet clip. Furthermore, in the direction in which the blind rivets 4 are arranged, the width of the rivet cap 41 is equal to the diameter of the tube 43, so that in the direction in which the blind rivets are arranged, adjacent blind rivets 4 in the rivet row can fit closely and be more stably positioned.

[0173] In another aspect of the present disclosure, a rivet row is provided, comprising a plurality of blind rivets 4 as described above arranged side by side, wherein the straight side surfaces of two adjacent blind rivets 4 in the width direction abut against each other.

[0174] In this embodiment, the straight side surfaces of two adjacent nail caps 41 in the width direction are attached to each other and bonded together, thereby forming a rivet row.

[0175] like Fig.12 As shown, the structure of the blind rivet 4 will be described. The blind rivet 4 includes a shank 42 and a shank 44 sleeved on the outside of the shank 42. The shank 44 includes a tube 43 and a shank 41 connected to the end of the tube 43. In the direction in which the plurality of blind rivets 4 are arranged, the two sides of the shank 41 have opposite side planes, and adjacent blind rivets 4 are abutted by the side planes. In this embodiment, the shank 41 and the tube 43 are integrally formed, but this is not limited thereto.

[0176] Specifically, the head of the nail rod 42 is larger than the tail of the nail rod 42, the tail of the nail rod 42 penetrates from the second end of the tube body 43, and the tail of the nail rod 42 extends from the first end of the tube body 43. After the blind rivet 4 is inserted into the riveting hole on the workpiece to be riveted, the tail of the nail rod 42 is pulled by a rivet gun, and the head of the nail rod 42 enters the nail sleeve 44, so that the second end of the nail sleeve 44 is compressed and expanded to form a fitting surface that is tightly pressed on the connected workpiece. After the tail of the nail rod 42 is pulled off, the riveting operation is completed. Since the operation only needs to be performed on one side of the workpiece, it is particularly suitable for riveting occasions where the operating space is small and it is inconvenient to use ordinary rivets (which need to be riveted from both sides).

[0177] The gun head module 10 provided by the present disclosure is provided with a nail inlet 15 and a nail rod outlet 16 on both sides of the gun head housing 1, and a rivet clip 20 is connected to the nail inlet 15, thereby improving the space utilization of the gun head module 10 and reducing the length of the rivet gun. Furthermore, the gun head module 10 provided by the present disclosure has a simple structure and reduces the manufacturing cost of the rivet gun. In addition, the gun head module 10 provided by the present disclosure has stable functions and high reliability in use.

[0178] The use process of the rivet gun is described as follows:

[0179] After the nail feeding is completed by the nail clamping unit 2, the nail cap 41 of the blind rivet 4 will remain outside the nail outlet and stop at the front side of the nail blocking plate 31 to wait for the nail clamping unit 2 to move back again and pull the nail rod 42.

[0180] Specifically, when the rivet drive part is started, the nail clamping unit 2 will move backward along the guide track under the backward pulling force. Since the nail cap 41 is stopped by the nail blocking plate 31, the nail clamping plate 26 clamps the nail rod 42 and drives the nail rod 42 to move backward to pull the nail rod 42 off and realize the riveting of the nail body of the workpiece.

[0181] After the nail rod 42 is broken, the nail clamping plate 26 continues to drive the nail rod 42 to move backward. When the nail rod 42 reaches the nail inlet 15, the roller 24 enters the second track section from the first track section. Under the guidance of the second track section, the nail clamping opening will gradually open, and the nail rod 42 will be separated from the nail clamping plate 26. Under the action of the nail-out driving part of the rivet clip 20, the nail rod 42 will be ejected through the nail rod outlet 16, and the blind rivet 4 at the first end of the rivet clip 20 will be ejected into the nail clamping opening under the action of the nail-out driving part. This process finally realizes the ejection of the useless nail rod 42 from the external space and the insertion of a new blind rivet 4.

[0182] After the new blind rivet 4 is inserted, the clamping unit 2 can move forward under the action of the forward driving force to move the nut 41 of the blind rivet 4 out of the rivet mouth again, so as to prepare for the next start of the rivet driving unit. Specifically, during the forward movement of the clamping unit 2, the roller 24 moves from the second track section to the first track section. When the roller 24 reaches the first track section, under the action of the clamping force applying unit 5, the clamping plate 26 clamps the nail rod 42 to continue moving toward the rivet mouth. When the roller 24 reaches the front end of the first track section, the nut 41 is pushed out of the rivet mouth again and is stopped by the front end of the rivet blocking plate 31 until the nut 41 is located at the front side of the rivet blocking plate 31.

[0183] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0184] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0185] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0186] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A blind rivet, characterized in that: The blind rivet (4) comprises: nail rod (42); The nail sleeve (44) comprises a tube body (43) and a nail cap (41) connected to a first end of the tube body (43); the tube body (43) is sleeved on the outside of the nail rod (42); the nail cap (41) protrudes outward relative to the outer circumference of the tube body (43); and in the width direction of the nail cap (41), the nail cap (41) has two opposite straight side surfaces.

2. The blind rivet according to claim 1, characterized in that: In the height direction of the nail cap (41), the nail cap (41) has two relatively straight side surfaces, and the nail cap (41) is rectangular.

3. The blind rivet according to claim 2, characterized in that: The width of the nail cap (41) is equal to the outer diameter of the tube body (43), and the height of the nail cap (41) is greater than the outer diameter of the tube body (43).

4. The blind rivet according to claim 1, characterized in that: The head end of the nail rod (42) extends from the second end of the nail sleeve (44), the tail end of the nail rod (42) extends from the first end of the nail sleeve (44), and an outer protrusion (45) is provided on the outer periphery of the tail end of the nail rod (42).

5. The blind rivet according to claim 4, characterized in that: In the width direction of the nail cap (41), the size of the outer protrusion (45) is smaller than or equal to the size of the nail cap (41).

6. The blind rivet according to claim 4, characterized in that: The outer circumference of the outer protrusion (45) is greater than the outer diameter of the nail rod (42) and is less than or equal to the outer diameter of the tube body (43).

7. The blind rivet according to any one of claims 4 to 6, characterized in that: The outer protrusion (45) is spherical or polygonal.

8. A rivet row, characterized in that: The rivet row comprises a plurality of blind rivets (4) according to any one of claims 1 to 7 arranged side by side, and the straight side surfaces of two adjacent blind rivets (4) in the width direction abut against each other.

9. The rivet row according to claim 8, characterized in that The straight side surfaces of two adjacent nail caps (41) in the width direction are attached to each other and bonded together, thereby forming a rivet row.

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