A new type of push tube structure riveting tool

Abstract

This application relates to the field of riveting tool technology and discloses a novel push-tube riveting tool, including a gun body, a riveting assembly, and multiple sets of rivet nozzle push-tube kits. One end of the gun body is provided with an outer sleeve, and the other end with a collection box. The outer sleeve has a first axis. The riveting assembly is located inside the gun body and the outer sleeve, and is used to rivet the rivets installed inside the outer sleeve. Through this method, this application not only avoids the rivets being arranged side-by-side in the second through hole, preventing rivet jamming during delivery within the push tube, but also ensures that the rivet nozzles and rivets are sized to match, achieving a one-to-one correspondence between rivet nozzles and push tubes in the same group. This solves the problem of rivets clogging the second through hole of the push tube when riveting different rivet specifications, where only the rivet is replaced without correspondingly replacing the push tube. This reduces the probability of rivet blockage inside the riveting tool and ensures its normal use.

Description

Technical Field

[0001] This application relates to the field of riveting tools, specifically to a new type of riveting tool with a push tube structure. Background Technology

[0002] Currently, among riveting tools, those with broken rivet collection functions generally break the rivet tail pin and then transport and store it in a rivet collection box at the rear of the machine body through the push tube at the rear of the claw and the machine body.

[0003] In riveting tools with broken rivet collection functions, various sizes of rivets can be riveted by changing different rivet nozzles. In such riveting tools, the push tube hole used to feed the tail rivet into the rivet collection box needs to accommodate both the largest and smallest rivet sizes. Therefore, the size of the push tube hole used to feed the tail rivet must be large enough to allow the tail rivet of the largest size to pass through. However, in actual use, it has been found that when the rivet nozzle is changed to one for riveting smaller rivets, and the push tube that can accommodate the tail rivet of the largest size is still used, the tail rivets produced by riveting smaller rivets are thinner. After continuous riveting, when the thin tail rivets pass through the tail rivet push tube with a larger hole, they are very easy to accumulate in the tail rivet push tube hole, causing rivet blockage. This requires disassembly and maintenance, affecting the use of the tool. Utility Model Content

[0004] This application provides a novel push-tube riveting tool that not only avoids the tail pins from being arranged side-by-side in the second through hole, preventing the tail pins from getting stuck during transport within the push tube, but also ensures that the size of the rivet nozzle matches the tail pin, achieving a one-to-one correspondence between the rivet nozzle and the push tube in the same group. This solves the problem of tail pins being arranged side-by-side in the second through hole of the push tube and causing blockage when only the rivet nozzle is replaced without correspondingly replacing the push tube when riveting different specifications of rivets. This reduces the probability of nail blockage inside the riveting tool and ensures the normal use of the riveting tool.

[0005] This application provides a novel riveting tool for a push tube structure, comprising: The gun body has an outer sleeve at one end and a collection box at the other end, and the outer sleeve has a first axis. A rivet assembly is located inside the gun body and the outer casing, and the rivet assembly is used to rivet rivets installed inside the outer casing; Multiple sets of rivet nozzle and push tube assemblies, each set including a rivet nozzle and a push tube, wherein one of the rivet nozzles of each rivet nozzle and push tube assembly is selectively connected to the outer sleeve, and one of the rivet nozzles of each rivet nozzle and push tube assembly is selectively connected to the gun body, wherein the rivet nozzle has a first through hole extending along a first axis, through which the rivet is inserted into the outer sleeve; the push tube is disposed inside the outer sleeve along the first axis, wherein the push tube has a second through hole extending along the first axis, wherein one end of the second through hole corresponds to the first through hole, and the other end of the second through hole corresponds to the collection box, wherein the second through hole is used to transport the tail pin that breaks off after the rivet is pulled to the collection box; In each set of the rivet push tube assembly, the diameter of the tail pin is a, the diameter of the second through hole of the push tube is b, and the diameter of the first through hole of the rivet corresponding to the push tube is c, satisfying: a < b < 1.5a, a < c < b; the diameter of the first through hole c and the diameter of the second through hole b are different in different sets of the rivet push tube assembly.

[0006] In one embodiment of this application, the riveting assembly includes a claw sleeve, a claw plate, and an elastic element; The claw sleeve is installed inside the outer sleeve. The claw plates include at least two claw plates, which are disposed inside the claw sleeve near one end of the rivet nozzle. The elastic element is connected to the push tube and is configured to allow the push tube to abut against the claw plates and, with the cooperation of the rivet nozzle, keep at least two claw plates separated.

[0007] In one embodiment of this application, the rivet nozzle includes a limiting part, a connecting part, and a first abutting part. The rivet nozzle is connected to the outer casing as a whole through the connecting part, with the limiting part located outside the outer casing and the first abutting part located inside the outer casing.

[0008] In one embodiment of this application, the first abutment is configured to be inserted into the claw sleeve to cooperate with the push tube to separate the claw pieces from each other inside the claw sleeve; wherein, the rivet nozzle is configured to adjust the spacing between the claw pieces by controlling the length of the first abutment inserted into the claw sleeve.

[0009] In one embodiment of this application, the rivet nozzle further includes a mounting slot disposed on the side of the limiting portion near the connecting portion and a buffer disposed within the mounting slot.

[0010] In one embodiment of this application, the riveting assembly further includes a drive mechanism, which includes a connector, a movable member, and a drive kit. The outer casing is connected to the movable member via the connector. The drive kit is located inside the gun body. The movable member has a second axis. The drive kit is configured to enable the movable member to reciprocate along the second axis, which coincides with the first axis.

[0011] In one embodiment of this application, the push tube includes a second abutment portion and a guide portion, the second through hole penetrates the second abutment portion and the guide portion, the guide portion penetrates the moving member along the second axis direction and extends through the interior of the gun body to the collection box.

[0012] In one embodiment of this application, the second contact portion and the guide portion are integrally formed structural parts, or the second contact portion and the guide portion are separate structural parts.

[0013] In one embodiment of this application, the elastic member is located between the second abutment and the moving member, and the elastic member is configured to move the second abutment away from the moving member along the second axis direction, so that the claw moves relative to the claw sleeve towards the side closer to the rivet nozzle.

[0014] In one embodiment of this application, the end of the claw sleeve near the rivet is provided with a conical guide surface, and each claw piece is provided with an arc-shaped guide surface that fits with the conical guide surface. Each claw piece is configured to be able to move closer to or further away from each other along the second axis direction through the arc-shaped guide surface and the conical guide surface.

[0015] The beneficial effects of this application are: The riveting tool is equipped with multiple sets of rivet nozzle push tube kits, ensuring that the rivet nozzle and sleeve of each kit correspond one-to-one and are compatible with a specific size of rivet. When the riveting tool needs to rivet rivets of different sizes, the rivet nozzle and push tube can be replaced with a set that matches the rivet to be riveted. By ensuring that the diameter b of the second through hole of the push tube and the diameter a of the broken tail pin satisfy a < b < 1.5a, the diameter c of the first through hole of the rivet nozzle used to install the rivet is limited to a < Within the range of c < b, not only can the tail pins be arranged side by side in the second through hole, preventing the tail pins from getting stuck when being transported in the push tube, but it can also make the size of the rivet nozzle and the tail pin match, achieving a one-to-one correspondence between the rivet nozzle and the push tube in the same group. This solves the problem of tail pins being arranged side by side in the second through hole of the push tube and causing blockage when only the rivet is changed without changing the corresponding push tube when riveting different specifications of rivets. This reduces the probability of nail blockage inside the riveting tool and ensures the normal use of the riveting tool. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the riveting tool for the novel push tube structure in the prior art during use; Figure 2 yes Figure 1 A partial structural diagram of a riveting tool; Figure 3 This is an exploded structural diagram of the riveting tool shown in this application; Figure 4 This is a schematic diagram of the structure of an embodiment of the riveting tool shown in this application during use; Figure 5 This application Figure 4 A partial structural diagram of the riveting tool; Figure 6 This application Figure 5 A schematic diagram of the connection structure between the center rivet and the tail pin, respectively, inside the rivet nozzle and the push tube; Figure 7 This is a schematic diagram of the structure of another embodiment of the riveting tool shown in this application during use; Figure 8 This application Figure 7 A partial structural diagram of a riveting tool; Figure 9 yes Figure 4 A schematic diagram of the riveting nozzle and push tube of the riveting tool from one perspective; Figure 10 yes Figure 4 A structural schematic diagram of the rivet nozzle and push tube of the riveting tool from another perspective; Figure 11 yes Figure 4 A schematic diagram of the side structure of the rivet nozzle and push tube of the riveting tool; Figure 12 yes Figure 11 A cross-sectional view of the rivet nozzle and push tube; Figure 13 yes Figure 5 The structural diagram at point A in the diagram.

[0019] Explanation of reference numerals in the attached figures: 10. Gun body; 101. Outer casing; 102. Collection box; 20. Rivet nozzle; 201. Limiting part; 2011. Mounting slot; 202. Connecting part; 203. First contact part; 21. First through hole; 22. Buffer; 30. Push tube; 301. Second contact part; 302. Guide part; 31. Second through hole; 40. Rivet; 401. Tail pin; 50. Claw sleeve; 501. Conical guide surface; 511. Arc guide surface; 51. Claw plate; 52. Elastic element; 60. Connecting part; 70. Moving part; 80. Equipment body; 81. Gun head sleeve; 82. Rivet collection box; 83. Rivet nozzle; 84. Push tube; 85. Through-rivet hole. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0021] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Existing riveting tools with broken rivet collection functions can rivet various sizes and specifications of rivets 40 by changing the rivet nozzle 83, such as... Figure 1 and Figure 2As shown, the riveting tool includes a main body 80 and gun head sleeves 81 and rivet collection boxes 82 located at both ends of the main body 80. The riveting nozzle 83 is installed inside the gun head. When the rivet 40 to be riveted is a small-sized type, it is necessary to replace the rivet nozzle 83 with one whose internal channel is compatible with the small-sized rivet. Although the riveting tool can also rivet small-sized rivets, in actual use it was found that the tail pin 401 of the broken small-sized rivet is relatively thin. The through-hole 85 inside the push tube 84 located inside the main body 80 is... The large tail pins that need to be fed to the push tube 84 make the diameter of the nail hole 85 inside the push tube 84 larger than the diameter of the fine tail pins. Sometimes, at least two fine tail pins may even be fed side by side into the nail collection box 82 inside the nail hole 85 inside the push tube 84. However, when multiple fine tail pins move side by side inside the nail hole 85 inside the push tube 84, they are easy to get blocked in the nail hole 85. This makes it difficult to insert the rivet 40 into the riveting nozzle 83 when using the riveting tool later, requiring disassembly and maintenance, which affects the use.

[0023] To solve the above problem, please refer to Figures 3 to 6 This application provides a novel riveting tool with a push tube structure, including a gun body 10, a riveting assembly, and multiple sets of rivet nozzle push tube kits. The riveting tool can be a rivet gun, and each set of rivet nozzle push tube kits can include a rivet nozzle 20 and a push tube 30.

[0024] Specifically, one end of the gun body 10 is provided with an outer sleeve 101, and the other end of the gun body 10 is provided with a collection box 102. The outer sleeve 101 has a first axis. The end of the gun body 10 where the outer sleeve 101 is installed is the head end of the riveting tool, and the end of the gun body 10 where the collection box 102 is installed is the tail end of the riveting tool. The outer sleeve 101 is roughly tubular in shape and can be connected to one end of the gun body 10 by means of threads. The collection box 102 is located at the other end of the gun body 10. The collection box 102 can be detached or opened from one end of the gun body 10, so that the tail nail 401 inside the collection box 102 can be cleaned.

[0025] The riveting assembly is located inside the gun body 10 and the outer casing 101. The riveting assembly is used to rivet the rivets 40 installed inside the outer casing 101. As the core component of the riveting tool, the riveting assembly has the function of breaking the rivets 40 inserted into the rivet nozzle 20 and separating the tail pin 401.

[0026] Each rivet nozzle 20 of the rivet nozzle push tube assembly is selectively connected to the outer casing 101, and each rivet nozzle push tube 30 of the rivet nozzle push tube assembly is selectively connected to the gun body 10. The rivet nozzle 20 has a first through hole 21 extending along the first axis, through which the rivet 40 is inserted into the outer casing 101. The push tube 30 is disposed inside the outer casing 101 along the first axis, and has a second through hole 31 extending along the first axis, with one end of the second through hole 31 corresponding to the first through hole 21, and the other end of the second through hole 31 connecting to the collection box 102. Correspondingly, the second through hole 31 is used to transport the broken tail nail 401 of the rivet 40 after riveting to the collection box 102; part of the push tube 30 is located inside the outer sleeve 101 and the rest is located inside the main body 80 of the device, so that the tail nail 401 of the rivet 40 inserted into the outer sleeve 101 through the first through hole 21 can enter the second through hole 31, so that when the rivet 40 breaks, the separated tail nail 401 automatically enters the second through hole 31 and is transported to the collection box 102 by the second through hole 31 to complete the collection and storage of the broken nail.

[0027] In each set of rivet push tube kits, the diameter of the tail pin 401 is a, the diameter of the second through hole 31 of the push tube 30 is b, and the diameter of the first through hole 21 of the rivet 20 corresponding to the push tube 30 is c, satisfying: a < b < 1.5a, a < c < b; the diameter c of the first through hole 21 and the diameter b of the second through hole 31 are different in different sets of rivet push tube kits. In this way, the rivet nozzle 20 and push tube 30 of each set of rivet nozzle push tube kits of the riveting tool correspond one-to-one, and the first through hole 21 of the rivet nozzle 20 and the second through hole 31 of the push tube 30 in the same set satisfy a < b < 1.5a and a < c < b with a tail rivet 401. This allows the rivet 40 with the tail rivet 401 to be adapted to a set of rivet nozzle push tube kits. When the riveting tool needs to rivet this type of rivet 40, a suitable set of rivet nozzle push tube kits can be replaced. This allows the rivet 40 to be smoothly installed into the outer sleeve 101 through the rivet nozzle 20. At the same time, it can limit the diameter b of the second through hole 31 of the push tube 30 used to transport the tail rivet 401 and the diameter a of the tail rivet 401 to the range of a < b < 1.5a, avoiding the situation where at least two tail rivets 401 are arranged side by side in the second through hole 31 and the tail rivet 401 becomes blocked.

[0028] In this manner, the riveting tool is equipped with multiple sets of rivet nozzle push tube kits, ensuring that the rivet nozzle 20 and sleeve 30 of each kit correspond one-to-one and are compatible with a specific size of rivet 40. When the riveting tool needs to rivet 40 of different sizes, a set of rivet nozzles 20 and push tubes 30 compatible with the rivet 40 to be riveted can be replaced. By ensuring that the diameter b of the second through hole 31 of the push tube 30 and the diameter a of the broken tail pin 401 satisfy a < b < 1.5a, the diameter c of the first through hole 21 of the rivet nozzle 20 for installing the rivet 40 is limited to a < c < b. Within this range, it not only avoids the tail pins 401 from being arranged side by side in the second through hole 31, preventing the tail pins 401 from getting stuck when being transported in the push tube 30, but also allows the size of the rivet nozzle 20 to be matched with that of the tail pins 401, achieving a one-to-one correspondence between the rivet nozzles 20 and the push tube 30 in the same group. This solves the problem of the tail pins 401 being arranged side by side in the second through hole 31 of the push tube 30 when only the rivet nozzle 20 is replaced without correspondingly replacing the push tube 30 when riveting different specifications of rivets 40. This reduces the probability of rivet blockage inside the riveting tool and ensures the normal use of the riveting tool.

[0029] In practical applications: Please refer to Figures 4 to 6 When the rivet 40 pulled by the riveting tool is a large-specification rivet, after the rivet 40 breaks through the riveting assembly, the tail pin 401 becomes a coarse tail pin. At this time, the diameter c of the first through hole 21 of the rivet nozzle 20 satisfies a < c < b, and the diameter b of the second through hole 31 of the push tube 30 satisfies a < b < 1.5a. At this time, the coarse tail pins are arranged sequentially in the second through hole 31, and there is no situation where multiple coarse tail pins are arranged side by side in the second through hole 31.

[0030] Please refer to Figure 7 and Figure 8 When the riveting tool pulls the rivet 40 by Figures 4 to 6 When replacing a large-sized rivet with a small-sized rivet, the rivet nozzle 20 and push tube 30 of the riveting tool need to be replaced. The first through hole 21 of the replaced rivet nozzle 20 matches the small-sized rivet, and the diameter c of the first through hole 21 of the replaced rivet nozzle 20, the diameter a of the fine tail pin of the small-sized rivet, and the diameter b of the second through hole 31 of the replaced push tube 30 satisfy a < c < b. Furthermore, the diameter c of the first through hole 21 of the replaced rivet nozzle 20 is smaller than the diameter c of the first through hole 21 of the rivet nozzle 20 used for installing the large-sized rivet. In addition, the diameter b of the second through hole 31 of the replaced push tube 30 and the diameter a of the fine tail pin of the small-sized rivet satisfy a < b < 1.5a, and the diameter b of the second through hole 31 of the replaced push tube 30 is smaller than the diameter b of the second through hole 31 of the push tube 30 used for conveying the coarse tail pin. Therefore, the fine tail pin can be conveyed as described above after replacing the suitable rivet nozzle 20 and push tube 30. Figure 7 and Figure 8The pins are arranged sequentially in the second through hole 31, and there is no situation where multiple thin tail pins are arranged side by side in the second through hole 31.

[0031] As an example: Please refer to Figure 4 The specification of rivet 40 is indicated by the diameter d of the other end of rivet 40 relative to tail pin 401. The rivet 40 in the prior art includes six specifications as shown in the table below.

[0032]

[0033] As shown in the table above, for a rivet 40 with a d of 2.4mm, the diameter a of its tail pin 401 is 1.55mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 2mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31, and the riveting tool will not be blocked during this process.

[0034] As shown in the table above, for a rivet 40 with a diameter of d of 3.2mm, the diameter a of its tail pin 401 is 2mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 3mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31. During this process, the riveting tool will not be blocked.

[0035] As shown in the table above, for a rivet 40 with a diameter of d of 4.0 mm, the diameter a of its tail pin 401 is 2.45 mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 3 mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31. During this process, the riveting tool will not be blocked.

[0036] As shown in the table above, for a rivet 40 with a diameter of d of 5.0 mm, the diameter a of its tail pin 401 is 2.9 mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 4 mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31. During this process, the riveting tool will not be blocked.

[0037] As shown in the table above, for a rivet 40 with a diameter of d of 6.0 mm, the diameter a of its tail pin 401 is 3.4 mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 4.2 mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31. During this process, the riveting tool will not be blocked.

[0038] As shown in the table above, for a rivet 40 with a diameter of d of 6.4 mm, the diameter a of its tail pin 401 is 3.9 mm. When the riveting tool of this application needs to rivet this rivet 40, the diameter b of the second through hole 31 of the push tube 30 of the replaced set of rivet nozzle push tube kit is 4.5 mm. At this time, the tail pin 401 after the rivet 40 breaks can smoothly enter the collection box 102 through the second through hole 31. During this process, the riveting tool will not be blocked.

[0039] In one embodiment, please continue to refer to Figures 3 to 5 as well as Figure 7 and Figure 8 The riveting assembly includes a claw sleeve 50, a claw piece 51, and an elastic element 52.

[0040] The claw sleeve 50 is installed inside the outer sleeve 101. At least two claw plates 51 are disposed within the claw sleeve 50 near one end of the rivet nozzle 20. An elastic element 52 is connected to the push tube 30 and is configured to allow the push tube 30 to abut against the claw plates 51, and, with the cooperation of the rivet nozzle 20, to keep the at least two claw plates 51 separated. Protruding teeth are provided between each claw plate 51. These teeth ensure that when the claw plates 51 approach each other to clamp the rivet 40, the rivet 40 is fully secured, preventing slippage between the rivet 40 and the claw plates 51, thus preventing riveting failure. In addition, the elastic element 52 can be a spring. The elastic element 52 is in a compressed state in its natural state. The elastic restoring force of the elastic element 52 can make the push tube 30 abut against the claw piece 51. At the same time, the rivet nozzle 20 can limit the other end of the claw piece 51. Thus, under the action of the elastic restoring force of the elastic element 52, the push tube 30 and the rivet nozzle 20 can cooperate to keep the claw piece 51 in a separated state. When the claw piece 51 is kept in a separated state, the rivet 40 can be inserted into the claw piece 51 and the second through hole 31 of the push tube 30 through the first through hole 21 to complete the installation of the rivet 40.

[0041] In one embodiment, please refer to Figures 9 to 12The rivet nozzle 20 includes a limiting part 201, a connecting part 202, and a first abutting part 203. The rivet nozzle 20 is connected to the outer sleeve 101 as a whole through the connecting part 202, with the limiting part 201 located outside the outer sleeve 101 and the first abutting part 203 located inside the outer sleeve 101. The connecting part 202 can be an externally threaded tube, and the limiting part 201 can be a plate-like structure. One end of the outer sleeve 101 used to install the rivet nozzle 20 is provided with an internally threaded ring plate corresponding to the connecting part 202. The connection between the rivet nozzle 20 and the outer sleeve 101 can be realized through the cooperation between the externally threaded tube and the internally threaded ring plate. The limiting part 201 can limit the degree of twisting of the externally threaded tube and the internally threaded ring plate, which facilitates the assembly between the rivet nozzle 20 and the outer sleeve 101. The first abutting part 203 is a smooth tube structure extending from the connecting part 202 away from the limiting part 201, and the end edge of the first abutting part 203 is provided with a chamfer.

[0042] In one embodiment, please Figures 9 to 12 Further reference Figures 3 to 5 as well as Figure 7 and Figure 8 The first contact portion 203 is configured to be inserted into the claw sleeve 50 to cooperate with the push tube 30 to separate the claw pieces 51 from each other inside the claw sleeve 50; wherein, the rivet nozzle 20 is configured to adjust the spacing between the claw pieces 51 by controlling the length of the first contact portion 203 inserted into the claw sleeve 50. Specifically, when the riveting tool needs to perform riveting work on large-sized rivets 40, it is necessary to replace the rivet nozzle 20 with a large-diameter first through hole 21 and the push tube 30 with a large-diameter second through hole 31. At this time, since the diameter of the tail pin 401 of the rivet 40 inserted into the claw sleeve 50 through the first through hole 21 is large, it is necessary to maintain a large distance between each claw piece 51 to ensure that the coarse tail pin of the large-sized rivet can be inserted between the claw pieces 51. At this time, the first contact part 203 of the rivet nozzle 20 adapted to the large-sized rivet needs to be inserted into the claw sleeve 50 for a longer length. With the cooperation of the push tube 30 and the elastic element 52, the claw pieces 51 are separated to maintain a larger distance, ensuring that the coarse tail pin of the large-sized rivet can be inserted between the claw pieces 51.

[0043] Of course, when the riveting tool needs to perform riveting work on small-sized rivets, it is necessary to replace the rivet nozzle 20 with a small-diameter first through hole 21 and the push tube 30 with a small-diameter second through hole 31. At this time, since the diameter of the tail pin 401 of the rivet 40 inserted into the claw sleeve 50 through the first through hole 21 is small, it is not necessary to maintain a large distance between each claw piece 51. At this time, the length of the first contact part 203 of the rivet nozzle 20 that is adapted to the small-sized rivet inserted into the claw sleeve 50 does not need to be too long. At the same time, with the cooperation of the push tube 30 and the elastic element 52, the claw pieces 51 can move closer to each other to appropriately reduce the distance, so that the claw pieces 51 can adapt to the riveting work of the small tail pin of the small-sized rivet.

[0044] In one embodiment, please refer to Figures 9 to 11 The rivet 20 also has a mounting slot 2011 disposed on the side of the limiting part 201 near the connecting part 202, and a buffer 22 disposed within the mounting slot 2011. The mounting slot 2011 consists of multiple slots evenly distributed on the side of the limiting part 201 near the connecting part 202. The buffer 22 can be an annular washer, which can be mounted on the rivet 20 through the slots, effectively preventing the annular washer from moving on the rivet 20. The buffer 22 prevents wear between the limiting part 201 and the outer sleeve 101, extending the service life of the rivet 20 and the outer sleeve 101.

[0045] In one embodiment, please refer to Figures 3 to 5 as well as Figure 7 and Figure 8 The riveting assembly also includes a drive mechanism, which comprises a connector 60, a movable member 70, and a drive kit. The outer casing 101 is connected to the movable member 70 via the connector 60. The drive kit is located inside the gun body 10. The movable member 70 has a second axis, and the drive kit is configured to enable the movable member 70 to reciprocate along the second axis, which coincides with the first axis. Specifically, the connector 60 can be a connecting shaft located inside the outer casing 101. The connecting shaft is hollow inside to allow the push tube 30 to move within the connector 60. The movable member 70 can be a movable lead screw, which has a through hole along the second axis for the push tube 30 to pass through. The two ends of the connecting shaft are threadedly connected to the outer casing 101 and the movable lead screw, respectively. The drive kit is located inside the gun body 10, and the drive components include at least a drive motor and a gear transmission assembly. Through the cooperation of the gear transmission assembly and the movable lead screw, the movable lead screw can reciprocate along the second axis inside the gun body 10. When the movable screw drives the claw sleeve 50 to move away from the rivet nozzle 20, the claw pieces 51 separate from the rivet nozzle 20. Under the action of the elastic element 52 and the push tube 30, each claw piece 51 can move closer to each other to clamp the rivet 40, realizing the action of pulling the rivet 40. The rivet 40 breaks and the tail pin 401 separates. Subsequently, when the movable screw drives the claw sleeve 50 to move closer to the rivet nozzle 20, the claw pieces 51 contact the rivet nozzle 20. Under the action of the elastic element 52 and the push tube 30, each claw piece 51 can move away from each other to release the broken and separated tail pin 401.

[0046] In one embodiment, please Figure 4 and Figure 7 Further reference Figures 9 to 12The push tube 30 includes a second abutment portion 301 and a guide portion 302. A second through hole 31 passes through the second abutment portion 301 and the guide portion 302. The guide portion 302 passes through the moving member 70 along the second axis and extends through the inside of the gun body 10 to the collection box 102. Specifically, the second abutment portion 301 can be a cylindrical structure, and the guide portion 302 can be a long rod-shaped structure with a diameter smaller than that of the second abutment portion 301. The second abutment portion 301 is used to contact the claw 51. The guide portion 302 is inserted into the moving member 70 along the second axis and can extend and retract relative to the moving member 70 when the moving member 70 reciprocates inside the gun body 10 and the outer casing 101 along the second axis, thereby enabling the claw 51 to switch between a clamped state where they are close to each other and a loosened state where they are far apart. In addition, by connecting the guide portion 302 to the collection box 102, the tail nail 401 can enter the collection box 102 through the second through hole 31 to collect the tail nail 401.

[0047] In one embodiment, the second contact portion 301 and the guide portion 302 are integrally formed structural components, or the second contact portion 301 and the guide portion 302 are separate structural components. Specifically, the second contact part 301 and the guide part 302 can be integrally formed structural components, such as those manufactured by casting or forging. This would result in higher overall strength and a longer service life for the push tube 30. Alternatively, the second contact part 301 and the guide part 302 can be separate structural components. These separate components can be connected by welding or threaded connections to form the push tube 30 as a whole. Although the strength of the push tube 30 formed by reassembling the second contact part 301 and the guide part 302 as separate structural components is not as high as the overall strength of the push tube 30 formed by integral molding, when the second contact part 301 or the guide part 302 of the push tube 30 is damaged, the damaged components can be replaced accordingly, which helps to reduce the maintenance cost of the push tube 30 and has higher economic efficiency.

[0048] In one embodiment, please refer to Figure 5 and Figure 8The elastic element 52 is located between the second abutment 301 and the moving element 70. The elastic element 52 is configured to allow the second abutment 301 to move away from the moving element 70 along the second axis, so that the claw piece 51 moves relative to the claw sleeve 50 towards the side closer to the rivet 20. Specifically, when the elastic element 52 is a spring, the elastic element 52 is sleeved on the guide 302, and its two ends abut against the moving element 70 and the second abutment 301 respectively. The elastic element 52 is in a compressed state between the moving element and the second abutment 301, and it always has the force to squeeze the claw piece 51 towards the side closer to the rivet 20 by the first abutment 203. When the moving element 70 moves towards the side closer to the collection box 102, the claw sleeve 50 drives the claw piece 51 to separate from the rivet 20. Since the claw piece 51 is no longer limited by the rivet 20, it moves relative to the claw sleeve 50 towards the side closer to the rivet 20 under the action of the second abutment 301, so that the claw pieces 51 move closer to each other to clamp the rivet 40.

[0049] In one embodiment, please Figure 5 Further reference Figure 13 The inner end of the claw sleeve 50 near the rivet nozzle 20 is provided with a conical guide surface 501. Each claw piece 51 is provided with an arc-shaped guide surface 511 that fits against the conical guide surface 501. Each claw piece 51 is configured to move closer to or further away from each other along the second axis direction via the arc-shaped guide surface 511 and the conical guide surface 501. Specifically, when the rivet 40 is inserted between the claw pieces 51 through the first through hole 21 of the rivet nozzle 20, the driving component drives the moving component 70 to move away from the rivet nozzle 20 along the second axis direction, so that the claw sleeve 50 moves synchronously with the moving component 70 within the outer sleeve 101. Under the elastic force of the elastic component 52, the push tube 30 presses against the claw piece 51 at one end of the rivet nozzle 20, and the claw pieces 51 move relative to the claw sleeve 50 under the interaction of the arc-shaped guide surface 511 and the conical guide surface 501, so that each claw piece 51 moves closer to each other to clamp the rivet 40. The riveting process is performed. After the riveting is completed, the driving component drives the moving part 70 to move along the second axial direction towards the side closer to the rivet nozzle 20, so that the claw sleeve 50 moves synchronously with the moving part 70 within the outer sleeve 101. When the claw piece 51 comes into contact with the rivet nozzle 20, the claw piece 51 is limited by the rivet nozzle 20. At the same time, with the elastic action of the push tube 30 on the claw piece 51, the claw piece 51 can move relative to the claw sleeve 50 under the interaction of the arc-shaped guide surface 511 and the conical guide surface 501, so that each claw piece 51 moves away from each other and releases the tail pin 401.

[0050] The riveting tool for the novel push tube structure provided in this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A novel riveting tool with a push-tube structure, characterized in that, include: The gun body (10) has an outer sleeve (101) at one end and a collection box (102) at the other end. The outer sleeve (101) has a first axis. A riveting assembly is located inside the gun body (10) and the outer casing (101), the riveting assembly being used to rivet rivets (40) installed inside the outer casing (101); Multiple sets of rivet nozzle push tube assemblies, each set of rivet nozzle push tube assemblies includes a rivet nozzle (20) and a push tube (30). The rivet nozzle (20) of each rivet nozzle push tube assembly is selectively connected to the outer casing (101), and the rivet nozzle (20) of each rivet nozzle push tube assembly is selectively connected to the gun body (10). The rivet nozzle (20) has a first through hole (21) that extends along a first axis. The rivet (40) is inserted into the outer casing (101) through the first through hole (21). The push tube (30) is disposed inside the outer sleeve (101) along the first axis direction. The push tube (30) has a second through hole (31) that is disposed through the first axis direction. One end of the second through hole (31) corresponds to the first through hole (21), and the other end of the second through hole (31) corresponds to the collection box (102). The second through hole (31) is used to transport the tail nail (401) that breaks off after the rivet (40) is riveted to the collection box (102). In each set of the rivet push tube assembly, the diameter of the tail pin (401) is a, the diameter of the second through hole (31) of the push tube (30) is b, and the diameter of the first through hole (21) of the rivet (20) corresponding to the push tube (30) is c, satisfying: a < b < 1.5a, a < c < b; the diameter c of the first through hole (21) and the diameter b of the second through hole (31) are different in different sets of the rivet push tube assembly.

2. The riveting tool according to claim 1, characterized in that, The riveting assembly includes a claw sleeve (50), a claw plate (51), and an elastic element (52); The claw sleeve (50) is installed inside the outer sleeve (101). The claw pieces (51) include at least two. At least two of the claw pieces (51) are disposed inside the claw sleeve (50) near one end of the rivet nozzle (20). The elastic element (52) is connected to the push tube (30). The elastic element (52) is configured to allow the push tube (30) to abut against the claw pieces (51) and to keep at least two of the claw pieces (51) separated in cooperation with the rivet nozzle (20).

3. The riveting tool according to claim 2, characterized in that, The rivet (20) includes a limiting part (201), a connecting part (202) and a first abutting part (203). The rivet (20) is connected to the outer jacket (101) as a whole through the connecting part (202), and the limiting part (201) is located outside the outer jacket (101) and the first abutting part (203) is located inside the outer jacket (101).

4. The riveting tool according to claim 3, characterized in that, The first abutment (203) is configured to be inserted into the claw sleeve (50) to cooperate with the push tube (30) to separate the claw pieces (51) from each other inside the claw sleeve (50); wherein the rivet (20) is configured to adjust the spacing between the claw pieces (51) by controlling the length of the first abutment (203) inserted into the claw sleeve (50).

5. The riveting tool according to claim 4, characterized in that, The rivet (20) also has a mounting slot (2011) disposed on the side of the limiting part (201) near the connecting part (202) and a buffer (22) disposed in the mounting slot (2011).

6. The riveting tool according to claim 2, characterized in that, The riveting assembly further includes a drive mechanism, which includes a connector (60), a movable member (70), and a drive kit. The outer casing (101) is connected to the movable member (70) via the connector (60). The drive kit is located inside the gun body (10). The movable member (70) has a second axis. The drive kit is configured to enable the movable member (70) to reciprocate along the direction of the second axis, which coincides with the first axis.

7. The riveting tool according to claim 6, characterized in that, The push tube (30) includes a second contact part (301) and a guide part (302). The second through hole (31) passes through the second contact part (301) and the guide part (302). The guide part (302) passes through the moving part (70) along the second axis and extends through the inside of the gun body (10) to the collection box (102).

8. The riveting tool according to claim 7, characterized in that, The second contact part (301) and the guide part (302) are integrally formed structural parts, or the second contact part (301) and the guide part (302) are separate structural parts.

9. The riveting tool according to claim 7, characterized in that, The elastic element (52) is located between the second abutment (301) and the moving element (70). The elastic element (52) is configured to move the second abutment (301) away from the moving element (70) along the second axis direction, so that the claw (51) moves relative to the claw sleeve (50) towards the side closer to the rivet (20).

10. The riveting tool according to claim 9, characterized in that, The inside of the claw sleeve (50) near the rivet (20) is provided with a conical guide surface (501), and each claw piece (51) is provided with an arc-shaped guide surface (511) that fits with the conical guide surface (501). Each claw piece (51) is configured to be able to move closer to or further away from each other along the second axis direction through the arc-shaped guide surface (511) and the conical guide surface (501).

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