Hand riveter

Abstract

The utility model provides a hand riveter, and belongs to the technical field of riveting tools. The hand riveter comprises a hand riveter body and a detection mechanism. The hand riveter body comprises a rivet hole. The detection mechanism comprises a plurality of floating assemblies and a plurality of detection pieces, the floating assemblies can float in the axial direction of the rivet hole, and the front ends of the floating assemblies protrude out of the opening end of the rivet hole. The plurality of floating assemblies surround the axis of the rivet hole, and the plurality of detection members are respectively located on backward floating paths of the plurality of floating assemblies. And the multiple detection pieces are configured to enable the hand riveter to be in a non-rivet-pulling state when the target condition is not met, and enable the hand riveter to be in a rivet-pulling state when the target condition is met. Wherein the target condition comprises that the plurality of detection pieces are extruded. In the process of using the hand riveter, if the hand riveter is not aligned with the to-be-riveted assembly, only part of the floating assembly abuts against the to-be-riveted assembly and floats backwards, only part of the detection piece is extruded, the target condition is not met, and the hand riveter is in a non-rivet-pulling state.

Description

Technical Field

[0001] This disclosure relates to the field of riveting tools, and in particular to a rivet gun. Background Technology

[0002] A rivet gun is a tool used for automated or semi-automatic riveting operations. It is used to pull rivets to join multiple structural components. Rivet guns are widely used in the manufacturing processes of energy products.

[0003] In related technologies, workers sometimes perform riveting when the rivet gun is not properly aligned with the component to be riveted. This causes the rivet to be misaligned, resulting in insufficient riveting strength and making the rivet prone to breakage and the formation of metal foreign objects. Specifically, misalignment between the rivet gun and the component to be riveted can be understood as the axis of the rivet gun's rivet hole not being perpendicular to the component to be riveted, and with a significant deviation.

[0004] As energy products evolve towards larger capacity and higher density, the control of metallic foreign objects in energy products is becoming increasingly stringent. Therefore, it is urgent to eliminate metallic foreign objects that may arise during the riveting process. Utility Model Content

[0005] This disclosure provides a rivet gun. The rivet gun provided by this disclosure can only perform riveting when it is properly aligned with the component to be riveted. The technical solution of the rivet gun is described below.

[0006] This disclosure provides a rivet gun. The rivet gun includes a rivet gun body and a detection mechanism. The rivet gun body includes a rivet hole. The detection mechanism includes a floating assembly and multiple detection elements. The floating assembly is capable of floating along the axial direction of the rivet hole, and when the floating assembly is not subjected to external force, its front end protrudes beyond the opening end of the rivet hole. There are multiple floating assemblies, which surround the axis of the rivet hole, and multiple detection elements are respectively located on the path of the multiple floating assemblies floating backward; or, the multiple detection elements are fixed to the front end of the floating assembly and surround the axis of the rivet hole. The multiple detection elements are configured to, when a target condition is not met, put the rivet gun in a non-rivetable state, and when the target condition is met, put the rivet gun in a riveting-capable state.

[0007] The target conditions include multiple test components being compressed. The "non-riveting gun state" refers to the state where the rivet gun cannot perform riveting action when the button is pressed. The "riveting gun state" refers to the state where the rivet gun can perform riveting action when the button is pressed.

[0008] The technical solution disclosed herein describes a method where, when a worker uses a rivet gun, they hold the gun and allow the rivet carried by the gun to pass through the component to be riveted, with the axis of the rivet hole perpendicular to the component. During the rivet's passage through the component, because the front end of the floating component protrudes beyond the opening of the rivet hole, the floating component first presses against the component and then floats backward until the rivet presses against the component.

[0009] When the inspection piece is located on the path of the floating components floating backward, the multiple floating components will compress multiple inspection pieces as they float backward. After being compressed, the target condition is met, causing the rivet gun to switch to the riveting state. When the inspection piece is located at the front of the floating components, multiple inspection pieces abut against the riveting assembly and are compressed by the assembly to be riveted, meeting the target condition and causing the rivet gun to switch to the riveting state. Afterward, the operator presses the button on the rivet gun body, and the rivet gun performs the riveting action.

[0010] If the rivet gun is not properly aligned with the components to be riveted during the riveting process, only a portion of the floating components will abut against the riveted components, and only a portion of the inspection parts will be compressed. This still does not meet the target conditions, and the rivet gun will remain in an unriveted state. In this case, even if the operator presses the button, the rivet gun will not perform any riveting action. Only after the operator adjusts the rivet gun's posture to align it with the components to be riveted can the rivet gun switch to a riveting state. This improves riveting strength and reduces the possibility of rivet breakage and the formation of metallic foreign objects.

[0011] In one possible implementation, the floating assembly includes a floating rod and an elastic element. The detection mechanism also includes a support assembly. The support assembly is fixed to the rivet gun body and surrounds the axis of the rivet gun body and the rivet hole. The floating rod is slidably connected to the support assembly along the axial direction of the rivet hole. One end of the elastic element abuts against the support assembly, and the other end abuts against the floating rod. The elastic element drives the front end of the floating rod to protrude beyond the support assembly. The detection is located on the path of the floating rod's rearward floating. Specifically, when the floating rod abuts against the riveting assembly, the floating rod floats backward and compresses the elastic element. When the floating rod no longer abuts against the riveting assembly, the elastic element drives the floating rod to extend forward.

[0012] The technical solution provided in this disclosure, by setting a support component to support the floating component outside the rivet gun body, eliminates the need to modify the rivet gun body, which helps to reduce modification costs.

[0013] In one possible implementation, the support assembly includes a first plate, a second plate, and a third plate stacked sequentially along the axial direction of the rivet hole, with the first plate close to the open end of the rivet hole. A floating rod passes through the first and second plates along the axial direction of the rivet hole. The floating rod includes an annular protrusion arranged between the first and second plates. An elastic element is arranged between the first and second plates, with one end abutting against the second plate and the other end abutting against the annular protrusion. A detection element is fixed to the side of the third plate facing the second plate and is disposed opposite to the floating rod. The arrangement of the first, second, and third plates facilitates the installation of the floating rod and the elastic element.

[0014] In one possible implementation, the support assembly further includes a sleeve. The sleeve is fixed to the rivet gun body and surrounds the axis of the rivet gun body and the rivet hole. The first plate, the second plate, and the third plate are all fixed to the sleeve. The sleeve facilitates the fixing of the first plate, the second plate, and the third plate.

[0015] In one possible implementation, a portion of the floating assembly extends into the rivet hole, while another portion lies outside the rivet hole. The floating assembly includes a through-hole extending axially through the rivet hole, communicating with the rivet hole, and allowing a rivet to pass through.

[0016] The technical solution provided in this disclosure improves the integration of the rivet gun and reduces its size by setting a portion of the floating component to pass through the rivet hole.

[0017] In one possible implementation, the floating assembly includes a floating rod and an elastic element. The floating rod includes a through hole. A portion of the floating rod extends into the rivet hole, while another portion is located outside the rivet hole. The elastic element is located in the rivet hole, with one end abutting against the hole wall and the other end abutting against the floating rod. The elastic element drives the floating rod to extend outward from the rivet hole. Multiple sensing elements are fixed to the front end of the floating rod. When the floating rod abuts against the assembly to be riveted, it floats backward and presses against the elastic element. When the floating rod no longer abuts against the assembly, it extends outward under the action of the elastic element.

[0018] In one possible implementation, the rivet hole includes a first segment, a second segment, and a third segment connected sequentially along the axial direction. The third segment has an open end, and the diameter of the second segment is larger than the diameters of the first and third segments. A portion of a floating rod extends into the first and second segments, and the floating rod includes an annular protrusion confined within the second segment. An elastic element is located within the second segment, with one end abutting against a stepped surface between the second and first segments, and the other end abutting against the annular protrusion. The outer diameter of the annular protrusion is larger than the diameter of the first segment. Driven by the elastic element, the front end of the floating rod extends outward, and due to the presence of the annular protrusion, the floating rod cannot disengage from the rivet hole.

[0019] In one possible implementation, the detection element is a pressure sensor, and the target condition includes that the pressure detected by multiple detection elements is greater than a target pressure threshold.

[0020] In one possible implementation, the detection element is a circuit switch, and the target condition includes multiple circuit switches being squeezed closed.

[0021] In one possible implementation, the rivet gun is a pneumatic rivet gun. The rivet gun also includes an electrically controlled valve, which controls the on / off state of the corresponding air circuit. The "non-rivetable state" refers to the state where the electrically controlled valve is closed, and the "rivetable state" refers to the state where the electrically controlled valve is open.

[0022] The technical solution disclosed herein provides that when the solenoid valve is closed, the air circuit is disconnected, and even if the button on the rivet gun body is pressed, the rivet action cannot be performed. When the solenoid valve is open, pressing the button by the operator opens the air circuit, allowing the rivet gun to perform the rivet action.

[0023] In one possible implementation, the electronically controlled valve is located in the air intake passage inside the rivet gun body. This increases the integration of the rivet gun and helps to reduce its size.

[0024] In one possible implementation, the rivet gun also includes a pipe connector for connecting the air pump and the air inlet of the rivet gun body. An electrically controlled valve is located inside the pipe connector. This eliminates the need to modify the air intake passage inside the rivet gun body, reducing modification costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating a usage scenario of a pneumatic rivet gun provided in an embodiment of this disclosure;

[0026] Figure 2 This is a schematic diagram of the riveting principle of a rivet gun in related technologies;

[0027] Figure 3 This is a schematic diagram of a rivet gun provided in an embodiment of this disclosure;

[0028] Figure 4 This is an exploded view of a rivet gun provided in an embodiment of this disclosure;

[0029] Figure 5 This is a schematic diagram of the detection principle of a testing organization provided in an embodiment of this disclosure;

[0030] Figure 6 This is a schematic diagram of a testing institution provided in an embodiment of this disclosure;

[0031] Figure 7This is a schematic diagram of another testing mechanism provided in an embodiment of this disclosure;

[0032] Figure 8 This is a schematic diagram of another testing mechanism provided in an embodiment of this disclosure;

[0033] Figure 9 This is a schematic diagram of another rivet gun provided in an embodiment of this disclosure;

[0034] Figure 10 This is a schematic diagram of a floating component provided in an embodiment of this disclosure;

[0035] Figure 11 This is a partial cross-sectional view of a rivet gun provided in an embodiment of this disclosure;

[0036] Figure 12 This is a schematic diagram of the air circuit of a rivet gun provided in an embodiment of this disclosure;

[0037] Figure 13 This is a schematic diagram of the air circuit of another rivet gun provided in this embodiment.

[0038] Legend

[0039] 100. Air pump; 200. Connecting pipe; 300. Riveting gun; 400. Rivet; 401. Rivet head; 4011. Flange; 402. Rivet rod; 500. Assembly to be riveted; 501. First workpiece; 502. Second workpiece.

[0040] 1. Rivet gun body; 11. Rivet hole; 110. Stepped surface; 111. First hole section; 112. Second hole section; 113. Third hole section; 12. Air intake passage; 120. Air inlet; 13. Button.

[0041] 2. Testing mechanism; 20. Perforation; 21. Floating component; 211. Floating rod; 2111. Annular protrusion; 212. Elastic element; 22. Testing component; 23. Support component; 230. Sleeve; 231. First plate; 232. Second plate; 233. Third plate.

[0042] 3. Electrically controlled valve;

[0043] 4. Pipeline connectors;

[0044] X-axis. Detailed Implementation

[0045] Riveting refers to the connection method of joining two or more workpieces using rivets. Riveting is widely used in the manufacturing process of energy products, such as battery packs. The tool used for riveting is a rivet gun, a tool used for automated or semi-automatic riveting operations. It can quickly and accurately complete the riveting action. Based on the power source, rivet guns are divided into electric rivet guns and pneumatic rivet guns. Below, we will use a pneumatic rivet gun as an example to explain the riveting principle.

[0046] Figure 1 This diagram illustrates a usage scenario for a pneumatic rivet gun. Figure 2 A schematic diagram illustrating the riveting principle of a pneumatic rivet gun is shown. Figure 1 As shown, the rivet gun 300 is connected to the air pump 100 through the connecting pipe 200. The air pump 100 can deliver high-pressure gas to the rivet gun 300 through the connecting pipe 200. The high-pressure gas can drive the relevant components in the rivet gun 300 to complete the riveting action.

[0047] like Figure 2 As shown, the rivet gun 300 includes a rivet hole 11 for the rivet 400 to pass through. When using the rivet gun 300, the operator holds it so that the rivet 400 carried by the rivet gun 300 passes through the assembly to be riveted 500. Then, the operator presses button 13 on the rivet gun 300, which opens the air intake passage 12 inside the rivet gun 300. High-pressure gas delivered by the air pump 100 can then enter the rivet gun 300 through the air intake passage 12, driving related components to move the rivet shank 402 of the rivet 400 in the direction of the arrow in the figure until the rivet shank 402 is broken. During the movement of the rivet shank 402, it squeezes the rivet head 401, causing the rivet head 401 to deform and clamping the first workpiece 501 and the second workpiece 502 of the assembly to be riveted 500.

[0048] Ideally, the riveting strength of the rivet 400 should be maximized only when the rivet 400 of the rivet gun 300 passes through the component 500 to be riveted, and the axis X of the rivet hole 11 of the rivet gun 300 is perpendicular (or approximately perpendicular) to the component 500 to be riveted, and the operator presses the button 13. However, in practical applications, the rivet gun 300 has the following technical problems during use.

[0049] First, when workers first handle the rivet gun 300, they may accidentally press button 13, causing the rivet gun 300 to engage. In this case, the rivet gun 300 will still break the rivet rod 402, but since the rivet 400 does not pass through the component 500 to be riveted, the rivet head 401 cannot be fixed to the component 500 to be riveted, and will fall off the rivet gun 300, forming a metal foreign object.

[0050] Second, when the worker presses button 13, the axis X of the rivet hole 11 is not perpendicular to the component 500 to be riveted and the difference is significant (this can be simply referred to as misalignment). This means that although the component 500 to be riveted is connected, the connection strength will be insufficient due to the misalignment of the rivet 400. Subsequently, during transportation, the rivet 400 may break due to vibration or other reasons, forming a metal foreign object.

[0051] As energy products evolve towards larger capacity and higher density, the requirements for battery cell safety are becoming increasingly stringent, and the control of metallic foreign objects in energy products is becoming more and more rigorous. Therefore, it is urgent to address the two types of metallic foreign objects that may arise during the riveting process.

[0052] In view of the above-mentioned technical problems, this disclosure provides a rivet gun 300. Figure 3 A schematic diagram of a rivet gun 300 provided in an embodiment of the present disclosure is shown. Figure 4 An exploded view of the rivet gun 300 provided in an embodiment of this disclosure is shown. Figure 3 and Figure 4 As shown, the rivet gun 300 includes a rivet gun body 1 and a detection mechanism 2. The rivet gun body 1 includes a rivet hole 11 for receiving a rivet 400. The detection mechanism 2 includes multiple floating components 21 and multiple detection elements 22. The floating components 21 are capable of floating along the axial direction of the rivet hole 11, and when the floating components 21 are not subjected to external force, the front end of the floating components 21 protrudes beyond the opening end of the rivet hole 11. The multiple floating components 21 surround the axis X of the rivet hole 11, and the multiple detection elements 22 are respectively located on the path of the multiple floating components 21 floating backward. The multiple detection elements 22 are configured to, when the target condition is not met, put the rivet gun 300 in a non-rivetable state, and when the target condition is met, put the rivet gun 300 in a riveting-capable state.

[0053] The target conditions include multiple detection components 22 being squeezed by multiple floating components 21. The "non-riveting gun state" refers to the state where the rivet gun 300 cannot perform riveting action when the button 13 of the rivet gun 300 is pressed. The "riveting gun state" refers to the state where the rivet gun 300 can perform riveting action when the button 13 of the rivet gun 300 is pressed.

[0054] The technical solutions provided in the embodiments of this disclosure, such as Figure 5As shown, when the worker uses the rivet gun 300, they hold the rivet gun 300 and pass the rivet 400 carried by the rivet gun 300 through the component 500 to be riveted, with the axis X of the rivet hole 11 perpendicular (or approximately perpendicular) to the component 500 to be riveted. During the process of the rivet 400 passing through the component 500 to be riveted, because the front end of the floating component 21 protrudes from the opening end of the rivet hole 11, multiple floating components 21 will first press against the component 500 to be riveted and then float backward until the rivet 400 presses against the component 500 to be riveted. During the backward floating of the multiple floating components 21, multiple detection components 22 will be squeezed respectively. After the multiple detection components 22 are squeezed, the target condition is met, causing the rivet gun 300 to switch to the riveting state. Then, the worker presses the button 13 on the rivet gun body 1, and the rivet gun 300 performs the riveting action, completing the riveting of the component 500 to be riveted.

[0055] In the event that the button 13 is accidentally pressed when the worker is handling the rivet gun 300, since the multiple floating components 21 will not float backward, the multiple detection parts 22 will not be squeezed, the target condition will not be met, and the rivet gun 300 will be in an unrivalable state. At this time, even if the button 13 is accidentally pressed, the rivet gun 300 will not perform a rivet action, and the rivet head 401 will not fall off and form a metal foreign object.

[0056] If the rivet gun 300 is misaligned with the component 500 to be riveted, only some of the floating components 21 will abut against the component 500 and float backward. This means only some of the inspection components 22 will be compressed, still failing to meet the target conditions, and the rivet gun 300 will remain in an unriveted state. In this case, even if the operator presses button 13, the rivet gun 300 will not perform a riveting action. Only after the operator adjusts the posture of the rivet gun 300 until all floating components 21 are abutting against the component 500 to be riveted can the rivet gun 300 switch to riveting mode. This ensures the riveting strength of the rivet 400, preventing it from breaking and forming metal foreign objects.

[0057] It is evident that the technical solution provided by the embodiments of this disclosure not only reduces the possibility of the above two types of metal foreign objects being generated, but also improves the rivet strength of rivet 400, greatly improving the reliability of energy products.

[0058] It should be noted that, in order to ensure that the floating component 21 in the rivet gun 300 abuts against the component 500 to be riveted, in some examples, such as Figure 5 As shown in the upper part, when the floating component 21 is not subjected to external force, the length L of the front end of the floating component 21 protruding from the opening end of the rivet hole 11 is greater than the thickness S of the flange 4011 of the rivet head 401. That is, when not subjected to external force, the front end of the floating component 21 protrudes from the flange 4011 of the rivet head 401 that passes through the rivet hole 11.

[0059] This disclosure does not limit the number of floating components 21. In some examples, the number of floating components 21 is at least two. In some examples, the number of floating components 21 is 3-6. The multiple floating components 21 can be evenly arranged around axis X. For example,... Figure 3 and Figure 4 As shown, there are four floating components 21, and the circumferential angle between two adjacent floating components 21 is 90°.

[0060] The type of the detection component 22, and the switching method of the rivet gun 300 between the non-rivet gun state and the rivet gun state, will be described in detail later. Below, the implementation method of the floating component 21 will be described by way of example.

[0061] Figure 6 and Figure 7 A schematic diagram of the testing mechanism 2 is shown, as follows. Figure 6 and Figure 7 As shown, in some examples, the floating assembly 21 includes a floating rod 211 and an elastic element 212. The detection mechanism 2 also includes a support assembly 23. The support assembly 23 is fixed to the rivet gun body 1 and surrounds the axis X of the rivet gun body 1 and the rivet hole 11. The floating rod 211 is slidably connected to the support assembly 23 along the axial direction of the rivet hole 11. One end of the elastic element 212 abuts against the support assembly 23, and the other end abuts against the floating rod 211. The elastic element 212 is used to drive the front end of the floating rod 211 to protrude out of the support assembly 23. The detection element 22 is located on the path of the floating rod 211 floating backward. Specifically, when the floating rod 211 abuts against the riveting assembly 500, the floating rod 211 floats backward and compresses the elastic element 212. When the floating rod 211 no longer abuts against the riveting assembly 500, the elastic element 212 drives the floating rod 211 to extend forward.

[0062] The technical solution provided in this embodiment of the present disclosure, by setting the support component 23 to support the floating component 21 outside the rivet gun body 1, eliminates the need to modify the rivet gun body 1, which helps to reduce the modification cost.

[0063] In other examples, the detection mechanism 2 may not include the support component 23; instead, the floating rod 211 is directly slidably connected to the rivet gun body 1, and the elastic element 212 directly abuts against the rivet gun body 1. Of course, in this case, it can also be understood that the support component 23 is integrated with the rivet gun body 1, or that the support component 23 is integrally connected to the housing of the rivet gun body 1.

[0064] In some examples, such as Figure 6 and Figure 7As shown, the support assembly 23 includes a first plate 231, a second plate 232, and a third plate 233 stacked sequentially along the axial direction of the rivet hole 11, with the first plate 231 located near the opening end of the rivet hole 11. A floating rod 211 passes through the first plate 231 and the second plate 232 along the axial direction of the rivet hole 11. The floating rod 211 includes an annular protrusion 2111, which is arranged between the first plate 231 and the second plate 232. An elastic member 212 is arranged between the first plate 231 and the second plate 232, with one end abutting against the second plate 232 and the other end abutting against the annular protrusion 2111. A detection member 22 is fixed to the side of the third plate 233 facing the second plate 232 and is disposed opposite to the floating rod 211.

[0065] In some examples, such as Figure 5 As shown, the first plate 231 is flush with the open end of the rivet hole 11. Alternatively, the first plate 231 is retracted relative to the open end of the rivet hole 11. Or, the first plate 231 protrudes relative to the open end of the rivet hole 11, and the length of the protrusion is less than the thickness S of the flange 4011 of the rivet head 401. This ensures that the flange 4011 properly abuts against the component 500 to be riveted, guaranteeing the riveting strength. It is understandable that if the first plate 231 protrudes forward relative to the flange 4011, the flange 4011 cannot abut against the component 500 to be riveted, affecting the riveting strength.

[0066] In some examples, at least one of the first plate 231, the second plate 232, and the third plate 233 described above is an annular plate. This facilitates the arrangement of multiple floating components 21 around axis X.

[0067] In some examples, such as Figure 6 and Figure 7 As shown, the support assembly 23 also includes a sleeve 230, which is fixed to the rivet gun body 1 and surrounds the axis X of the rivet gun body 1 and the rivet hole 11. The first plate 231, the second plate 232 and the third plate 233 are all fixed to the sleeve 230.

[0068] It should be noted that, in addition to placing multiple detection elements 22 on the path of multiple floating components 21 floating backward, in other examples, such as... Figure 8 As shown, multiple detection elements 22 can also be respectively disposed at the front end of the floating component 21, in which case the detection elements 22 are used to directly abut against the component 500 to be riveted. Correspondingly, the target condition includes that all multiple detection elements 22 are pressed by the component 500 to be riveted. Additionally, as... Figure 8 As shown, since multiple detection elements 22 are located at the front end of the floating component 21, the support component 23 may only include the first plate 231 and the second plate 232, but not the third plate 233.

[0069] In cases where the detection component 22 directly abuts against the component 500 to be riveted, besides the implementation method of setting multiple floating components 21, in other examples, such as... Figure 9 As shown, the floating component 21 is a single unit, with a portion extending into the rivet hole 11 and another portion located outside the rivet hole 11. The floating component 21 includes a through hole 20 extending axially through the rivet hole 11, communicating with the rivet hole 11, and allowing a rivet 400 to pass through. Figure 10 and Figure 11 As shown, multiple detection elements 22 are fixed to the front end of the floating assembly 21, and when the rivet 400 passes through the through hole 20, the multiple detection elements 22 are arranged around the rivet 400. In particular, by setting the floating assembly 21 through the rivet hole 11, it is beneficial to improve the integration and miniaturization of the rivet gun 300.

[0070] The technical solutions provided in the embodiments of this disclosure, such as Figure 11 As shown, when the worker uses the rivet gun 300, they hold the rivet gun 300 and pass the rivet 400 carried by the rivet gun 300 through the component 500 to be riveted, with the axis X of the rivet hole 11 perpendicular to the component 500 to be riveted. During the process of the rivet 400 passing through the component 500 to be riveted, because the front end of the floating component 21 protrudes from the opening end of the rivet hole 11, multiple detection elements 22 located at the front end of the floating component 21 will first abut against the component 500 to be riveted and float backward until the rivet 400 abuts against the component 500 to be riveted. After the multiple detection elements 22 are abutted by the component 500 to be riveted, the target condition is met, causing the rivet gun 300 to switch to the riveting state. Then, the worker presses the button 13 on the rivet gun body 1, and the rivet gun 300 performs the riveting action, completing the riveting of the component 500 to be riveted.

[0071] If a worker accidentally presses button 13 while handling the rivet gun 300, the target conditions will not be met because multiple detection components 22 will not be compressed, and the rivet gun 300 will be in an unrivalable state. In this case, even if button 13 is accidentally pressed, the rivet gun 300 will not perform a rivet action, and the rivet head 401 will not fall off and form a metal foreign object.

[0072] When the rivet gun 300 is misaligned with the component 500 to be riveted, only some of the detection parts 22 are against the component 500, which still does not meet the target conditions, and the rivet gun 300 is in an unriveted state. In this case, even if the operator presses button 13, the rivet gun 300 will not perform a riveting action. Only after the operator adjusts the posture of the rivet gun 300 until all the detection parts 22 are against the component 500 to be riveted can the rivet gun 300 switch to riveting mode. This ensures the riveting strength of the rivet 400, preventing it from breaking and forming metal foreign objects.

[0073] It should be noted that, in order to ensure that the detection component 22 can abut against the component 500 to be riveted, in some examples, such as Figure 11 As shown, when the floating component 21 is not subjected to external force, the detection element 22 protrudes from the flange 4011 of the rivet head 401, or is flush with the flange 4011 of the rivet head 401. In addition, the detection element 22 can deform along the axial direction of the rivet hole 11 so that the flange 4011 of the rivet head 401 can properly abut against the component 500 to be riveted.

[0074] In some examples, such as Figure 11 As shown, the floating assembly 21 includes a floating rod 211 and an elastic element 212. The floating rod 211 includes a through hole 20. A portion of the floating rod 211 extends into the rivet hole 11, and the other portion is located outside the rivet hole 11. The elastic element 212 is located in the rivet hole 11, with one end abutting against the hole wall of the rivet hole 11 and the other end abutting against the floating rod 211. The elastic element 212 is used to drive the floating rod 211 to extend outward from the rivet hole 11. A plurality of detection elements 22 are fixed to the front end of the floating rod 211. When the detection elements 22 on the floating rod 211 abut against the riveting assembly 500, the floating rod 211 floats backward and compresses the elastic element 212. When the detection elements 22 on the floating rod 211 no longer abut against the riveting assembly 500, the elastic element 212 drives the floating rod 211 to extend forward.

[0075] In some examples, such as Figure 11 As shown, the rivet hole 11 includes a first hole segment 111, a second hole segment 112, and a third hole segment 113 connected sequentially along the axial direction. The third hole segment 113 has an open end, and the diameter of the second hole segment 112 is larger than the diameters of the first hole segment 111 and the third hole segment 113. A portion of a floating rod 211 extends into the first hole segment 111 and the second hole segment 112. The floating rod 211 includes an annular protrusion 2111, which is confined within the second hole segment 112. An elastic element 212 is located within the second hole segment 112, with one end abutting against the stepped surface 110 between the second hole segment 112 and the first hole segment 111, and the other end abutting against the annular protrusion 2111. The outer diameter of the annular protrusion 2111 is larger than the diameter of the first hole segment 111. Driven by the elastic element 212, the front end of the floating rod 211 extends outward, and due to the presence of the annular protrusion 2111, the floating rod 211 cannot disengage from the rivet hole 11.

[0076] The types of detection elements 22 are described below by way of example. In some examples, the detection element 22 is a pressure sensor, and the target condition includes that the pressure detected by multiple detection elements 22 is greater than a target pressure threshold. Alternatively, in this case, the detection mechanism 2 may also include a controller electrically connected to the multiple detection elements 22 and used to issue an instruction message instructing the rivet gun 300 to switch from a non-rivetable state to a riveting state when the pressure detected by multiple detection elements 22 is greater than the target pressure threshold. For example, a message instructing the solenoid valve 3 to be turned on is sent to the solenoid valve 3 described below.

[0077] In other examples, the detection element 22 is a circuit switch, and the target condition includes multiple circuit switches being pressed closed. For example, the circuit containing the multiple circuit switches is connected to the electrically controlled valve 3 described below. Then, when the multiple circuit switches are closed, the circuit is turned on, causing the air passage containing the electrically controlled valve 3 to be opened.

[0078] The following example, using a pneumatic rivet gun as an example, illustrates how multiple detection components 22 enable the rivet gun 300 to switch between a non-rivetable state and a rivetable state.

[0079] In some examples, such as Figure 12 As shown, the rivet gun 300 also includes an electrically controlled valve 3, which is used to control the on / off state of the corresponding air circuit of the rivet gun 300. The non-rivetable state refers to the state in which the electrically controlled valve 3 is closed, and the riveting state refers to the state in which the electrically controlled valve 3 is open.

[0080] The technical solution provided in this embodiment states that when the target conditions are not met, the air circuit is disconnected when the solenoid valve 3 is closed. Even if the operator presses button 13 at this time, the air intake passage 12 cannot be properly ventilated, and the riveting action cannot be performed. When the target conditions are met, the air circuit is opened when the operator presses button 13 again, and the riveting gun 300 can perform the riveting action.

[0081] Among them, such as Figure 12 and Figure 13 As shown, button 13 can also disconnect and open the intake passage 12. When button 13 is not pressed, button 13 disconnects the intake passage 12. When button 13 is pressed, button 13 can open the intake passage 12. Specifically, the intake passage 12 can only be fully opened when both button 13 and the solenoid valve 3 are open. When either button 13 or solenoid valve 3 disconnects the intake passage 12, the intake passage 12 is in the disconnected state.

[0082] This disclosure does not limit the specific location of the electrically controlled valve 3 in the embodiments. In some examples, such as... Figure 12As shown, the electronically controlled valve 3 is located on the air intake passage 12 inside the rivet gun body 1. This helps to improve the integration of the rivet gun 300 and reduce its size.

[0083] In other examples, such as Figure 13 As shown, the rivet gun 300 also includes a pipe connector 4, which is used to connect the air pump 100 and the air inlet 120 of the rivet gun body 1. The pipe connector 4 is equipped with an electric control valve 3 inside.

[0084] The technical solution provided in this embodiment of the present disclosure, by setting the electric control valve 3 in the pipeline connector 4 outside the rivet gun body 1, eliminates the need to improve the air intake passage 12 of the rivet gun body 100. Instead, it only requires adding a component to the air pump 100 and the air inlet 120 of the rivet gun body 1, which is beneficial to the realization of the rivet gun 300 provided in this embodiment of the present disclosure and reduces the improvement cost.

[0085] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A rivet gun, characterized in that, The rivet gun (300) includes a rivet gun body (1) and a detection mechanism (2); The rivet gun body (1) includes rivet holes (11); The detection mechanism (2) includes a floating component (21) and multiple detection elements (22). The floating component (21) is able to float along the axial direction of the rivet hole (11), and when the floating component (21) is not subjected to external force, the front end of the floating component (21) protrudes from the opening end of the rivet hole (11). There are multiple floating components (21), and the multiple floating components (21) surround the axis (X) of the rivet hole (11). Multiple detection elements (22) are respectively located on the path of the multiple floating components (21) floating backward; or, the multiple detection elements (22) are fixed to the front end of the floating component (21) and surround the axis (X) of the rivet hole (11). The plurality of detection elements (22) are configured to, when the target conditions are not met, make the rivet gun (300) in a non-rivetable state, and when the target conditions are met, make the rivet gun (300) in a riveting state, wherein the target conditions include all of the plurality of detection elements (22) being squeezed.

2. The rivet gun according to claim 1, characterized in that, The floating component (21) includes a floating rod (211) and an elastic element (212), and the detection mechanism (2) also includes a support component (23); The support assembly (23) is fixed to the rivet gun body (1) and surrounds the axis (X) of the rivet gun body (1) and the rivet hole (11); The floating rod (211) and the support assembly (23) are slidably connected along the axial direction of the rivet hole (11); One end of the elastic element (212) abuts against the support assembly (23), and the other end abuts against the floating rod (211). The elastic element (212) is used to drive the front end of the floating rod (211) to protrude from the support assembly (23). The detection element (22) is located on the path of the floating rod (211) floating backward.

3. The rivet gun according to claim 2, characterized in that, The support assembly (23) includes a first plate (231), a second plate (232) and a third plate (233) stacked sequentially along the axial direction of the rivet hole (11), and the first plate (231) is close to the opening end of the rivet hole (11); The floating rod (211) passes through the first plate (231) and the second plate (232) along the axial direction of the rivet hole (11). The floating rod (211) includes an annular protrusion (2111), which is arranged between the first plate (231) and the second plate (232). The elastic element (212) is arranged between the first plate (231) and the second plate (232), with one end abutting against the second plate (232) and the other end abutting against the annular protrusion (2111); The detection element (22) is fixed to the side of the third plate (233) facing the second plate (232) and is arranged opposite to the floating rod (211).

4. The rivet gun according to claim 3, characterized in that, The support assembly (23) further includes a sleeve (230), which is fixed to the rivet gun body (1) and surrounds the axis (X) of the rivet gun body (1) and the rivet hole (11); The first plate (231), the second plate (232) and the third plate (233) are all fixed to the sleeve (230).

5. The rivet gun according to claim 1, characterized in that, A portion of the floating component (21) extends into the rivet hole (11), while the other portion is located outside the rivet hole (11); The floating assembly (21) includes a through hole (20) extending axially through the rivet hole (11), the through hole (20) communicating with the rivet hole (11), the through hole (20) being used for a rivet (400) to pass through; The plurality of detection elements (22) are fixed to the front end of the floating assembly (21) and surround the axis (X) of the rivet hole (11).

6. The rivet gun according to claim 5, characterized in that, The floating assembly (21) includes a floating rod (211) and an elastic element (212), wherein the floating rod (211) includes the perforation (20); A portion of the floating rod (211) extends into the rivet hole (11), while the other portion is located outside the rivet hole (11); The elastic element (212) is located in the rivet hole (11), with one end abutting against the hole wall of the rivet hole (11) and the other end abutting against the floating rod (211). The elastic element (212) is used to drive the floating rod (211) to extend out of the rivet hole (11). The plurality of detection elements (22) are fixed to the front end of the floating rod (211).

7. The rivet gun according to claim 6, characterized in that, The rivet hole (11) includes a first hole segment (111), a second hole segment (112) and a third hole segment (113) connected sequentially along the axial direction, wherein the third hole segment (113) has the open end, and the hole diameter of the second hole segment (112) is larger than the hole diameter of the first hole segment (111) and the hole diameter of the third hole segment (113); A portion of the floating rod (211) extends into the first hole section (111) and the second hole section (112), and the floating rod (211) includes an annular protrusion (2111) which is confined in the second hole section (112); The elastic element (212) is located in the second hole section (112), with one end of the elastic element (212) abutting against the step surface (110) between the second hole section (112) and the first hole section (111), and the other end abutting against the annular protrusion (2111).

8. The rivet gun according to any one of claims 1-7, characterized in that, The detection element (22) is a pressure sensor, and the target condition includes that the pressure detected by the plurality of detection elements (22) is greater than the target pressure threshold.

9. The rivet gun according to any one of claims 1-7, characterized in that, The detection element (22) is a circuit switch, and the target condition includes that all of the circuit switches are squeezed to close.

10. The rivet gun according to any one of claims 1-7, characterized in that, The rivet gun (300) is a pneumatic rivet gun, and the rivet gun also includes an electric control valve (3), which is used to control the opening and closing of the air circuit corresponding to the rivet gun (300); The non-riveting state refers to the state in which the solenoid valve (3) is closed, and the riveting state refers to the state in which the solenoid valve (3) is open.

11. The rivet gun according to claim 10, characterized in that, The electronically controlled valve (3) is located in the air intake passage (12) inside the rivet gun body (1).

12. The rivet gun according to claim 10, characterized in that, The rivet gun (300) also includes a pipe connector (4), which is used to connect between the air pump (100) and the air inlet (120) of the rivet gun body (1). The pipe connector (4) is equipped with the electric control valve (3).

Images