Rivet gun

Abstract

The utility model discloses a riveting gun, and relates to the field of bullet train workshop maintenance, the riveting gun comprises a riveting gun connecting part, the output end part of the riveting gun connecting part is provided and connected with a riveting gun head sleeve, the riveting gun head sleeve is provided and connected with a connecting sleeve, and the riveting gun head sleeve is detachably connected with the riveting gun connecting part through the connecting sleeve; the connecting sleeve comprises a connecting sleeve, an outer sleeve and a turncap, the connecting sleeve is movably arranged on the rivet gun head sleeve in a sleeving mode and detachably connected with the end, close to the rivet gun connecting part, of the rivet gun head sleeve, and the outer sleeve is arranged at the end, away from the rivet gun connecting part, of the connecting sleeve; the outer sleeve is arranged on the hand riveter head sleeve in a penetrating mode and detachably connected with the connecting sleeve, a turncap is arranged at the end, away from the connecting sleeve, of the outer sleeve, and the turncap is movably arranged on the hand riveter head sleeve in a sleeving mode. The riveting gun with the improved design has the advantages that the riveting state of rivets in a narrow space is good, the rivets are convenient to take and use, and the storage does not occupy too much space.

Description

Technical Field

[0001] The utility model relates to the field of maintenance of motor vehicle workshops, in particular to a rivet gun. Background Art

[0002] During the maintenance of the EMU end beam, it is often found that the rivets of the main transformer mounting beam fall off. The rivet falling off will reduce the fastening force of the mounting beam. If the rivets fall off and the fastening force is reduced, it will cause the risk of falling off when the EMU is vibrated during long-term high-speed operation. Due to the narrow position of the rivets, the existing general rivet gun cannot rivet them. There are currently three ways to deal with it. The first is to replace the rivets with bolts. The disadvantage is that the body structure is changed, and the shape and size are inconsistent with the original rivet, which is easy to cause the risk of TEDS misshooting; the second is to reverse the rivet riveting. The disadvantage is that the bottom rivet is easy to cause hitting and falling off, there is a risk of three plates falling off, and the shape is inconsistent with the original rivet head, which is easy to cause the risk of TEDS misshooting; the third is to replace the transformer mounting beam. This solution requires the disassembly of the mounting beam and the high-voltage connecting wire, which is a large workload, wastes a lot of time, and has high maintenance costs. In this regard, in order to fix the rivet falling failure of the main transformer mounting beam without changing the original vehicle structure, it is necessary to rivet in a small space, and it is urgent to manufacture and develop a special rivet gun. Utility Model Content

[0003] The utility model aims to provide a rivet gun, which is used in the maintenance of the end beam of an EMU, and is used to fasten the detached position of the main transformer mounting beam; the rivet gun is designed and improved on the basis of the existing rivet gun, and the rivet gun after the design and improvement can not only rivet in a small space in a good state, but also can be used as an ordinary rivet gun in other places, and the tooling has the advantages of being easy to use and not taking up too much space for storage.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A rivet gun, characterized in that it comprises a rivet gun connecting part, the output end of the rivet gun connecting part is mounted and connected with a rivet gun head set, the rivet gun head set is mounted and connected with a connecting set, and the rivet gun head set is detachably connected to the rivet gun connecting part through the connecting set;

[0006] The rivet gun head set includes a fixed sleeve, a connecting shaft, and a claw sleeve assembly. The end of the fixed sleeve close to the rivet gun connecting part is connected to the rivet gun connecting part, and the end of the fixed sleeve away from the rivet gun connecting part is connected to the connecting shaft. The end of the connecting shaft away from the fixed sleeve is detachably installed and connected with the claw sleeve assembly.

[0007] Preferably, the fixing sleeve and the connecting sleeve are detachably connected via threads;

[0008] The outer sleeve is movably sleeved on the claw sleeve assembly, and one end of the outer sleeve close to the fixed sleeve is sleeved in the hollow cavity of the connecting sleeve;

[0009] The cap is sleeved on the outer sleeve, and the outer sleeve and the connecting sleeve are detachably connected by screw threads of the cap.

[0010] Preferably, the connecting sleeve set includes a connecting sleeve, an outer sleeve and a cap. The connecting sleeve is movably sleeved on the pull riveting gun head set and is detachably connected to one end of the pull riveting gun head set close to the riveting gun connecting part. An outer sleeve is arranged at one end of the connecting sleeve far from the riveting gun connecting part. The outer sleeve is sleeved on the pull riveting gun head set and is detachably connected to the connecting sleeve. A cap is arranged at one end of the outer sleeve far from the connecting sleeve. The cap is movably sleeved on the pull riveting gun head set.

[0011] Preferably, a hook is installed and connected to the top end of the riveting gun connecting part;

[0012] A fault lamp is installed and arranged at the top end of one end of the riveting gun connecting part far from the pull riveting gun head set;

[0013] A rivet needle collecting part is installed and connected to one end of the riveting gun connecting part far from the pull riveting gun head set.

[0014] Preferably, a handle part is installed and connected to the bottom end of the riveting gun connecting part. A switch is installed and connected to the handle part. An indicator lamp is arranged on one side of the handle part far from the riveting gun connecting part. A battery self-locking button is also arranged on one side of the handle part far from the riveting gun connecting part. A battery pack is installed and arranged at one end of the handle part far from the riveting gun connecting part.

[0015] The beneficial effects of the utility model are as follows:

[0016] This riveting gun is used during the maintenance of the end beam of the EMU. It is designed and improved according to the problems found during the maintenance. Through this riveting gun, it can be used in a narrow space during the maintenance of the end beam of the EMU. In terms of specific structural design, this riveting gun includes a riveting gun connecting part. A pull riveting gun head set is installed and connected to the output end of the riveting gun connecting part. A connecting sleeve set is installed and connected to the pull riveting gun head set. The pull riveting gun head set and the riveting gun connecting part are detachably connected through the connecting sleeve set; During implementation, according to the "space size" during on-site maintenance, by loosening the connecting sleeve set, the pull riveting gun head set is replaced to facilitate adapting to the "space size" during on-site maintenance and achieve the purpose of design and use. Through this improved riveting gun, not only can the riveting state of the rivets in the "narrow space" during the maintenance of the end beam of the EMU be good, but also it can be used as an ordinary riveting gun in other places. At the same time, this tooling has the advantages of being convenient to take and not occupying too much space for storage. Description of the Drawings

[0017] Figure 1 Structural schematic diagram of a rivet gun of the present utility model;

[0018] Figure 2 Exploded schematic diagram of the structural connection of the riveting gun head set and the connection set of a rivet gun of the present utility model;

[0019] In the figure, 1 - rivet gun connection part, 2 - riveting gun head set, 3 - connection set, 11 - hook, 12 - fault lamp, 13 - rivet needle collection part, 21 - fixing sleeve, 22 - connecting shaft, 23 - claw sleeve assembly, 31 - coupling sleeve, 32 - outer sleeve, 33 - screw cap, 41 - switch, 42 - indicator lamp, 43 - battery self-locking button, 44 - battery pack. Specific implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings herein is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model. It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0022] Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0023] According to the on-site operation situation, the following explanations are made from the following aspects:

[0024] 1. Replace rivets with bolts

[0025] According to the on-site situation, after the rivets fell off, M6 bolts were used to replace the rivets for installation. This method changes the original vehicle structure and is inconsistent with the original rivet connection method. There are two situations at the bottom: bolts and rivet round heads. During operation, it is easy to cause misjudgment by TEDS and stop the train. At the same time, when connecting the nuts, two people are required to apply torque and mark for preventing loosening on the way, which is more time-consuming in terms of fault handling efficiency.

[0026] 2. Rivet reverse riveting

[0027] According to the on-site situation, after the rivets fell off, reverse riveting was used for installation. This method changes the original vehicle connection process. There are two situations at the bottom: rivet bolts and rivet round heads. During operation, it is also easy to cause misjudgment by TEDS and stop the train. At the same time, the protruding distance of the rivet bolt head is relatively large, and it is extremely easy to be hit and cause the risk of falling off during operation.

[0028] 3. Disassemble the mounting beam and get off the vehicle for riveting

[0029] According to the on-site situation, if a traditional riveting gun is used to rivet the adapter plate, the following steps are required: ① Disassemble the mounting beam (4 mounting bolts for the wiring bracket, 8 bolts for the wiring hoisting bracket, and 4 hoisting bolts for the mounting beam need to be disassembled), ② Cut the wiring bracket of the mounting beam, ③ Use a riveting gun to rivet the adapter plate, ④ Weld the wiring bracket, ⑤ Load the mounting beam onto the vehicle, and the mounting beam, wiring bracket bolts, etc. need to be restored.

[0030] The fault handling process of using the method of getting off the vehicle for riveting is cumbersome and has the following major risks: First, the disassembly and installation of hoisting bolts increase the risk of anti-loosening; second, it is inevitable to touch the high-voltage large wires during the disassembly and assembly process, which will increase the fatigue strength of the large wires; third, cutting and welding operations are involved, increasing the risk of fire, and professional personnel are required for the operation; fourth, it increases the manpower and cost of fault handling. Disassembling and assembling the mounting beam requires more than 3 people compared with direct riveting. At the same time, spring washers, hoisting bolts, and special nuts need to be replaced.

[0031] 4. Replace the mounting beam

[0032] If the mounting beam is replaced, cutting and welding are not required. ① Disassemble the mounting beam (4 mounting bolts for the wiring bracket, 8 bolts for the wiring hoisting bracket, and 4 hoisting bolts for the mounting beam need to be disassembled). ② Load the mounting beam onto the vehicle, and the mounting beam, wiring bracket bolts, etc. need to be restored. The purchase price of the mounting beam is about 30,000 yuan. After using the special riveting tooling for the main transformer riveting, a large amount of cost will be reduced.

[0033] To sum up, for the fault of the rivets falling off from the main transformer mounting beam, without changing the original vehicle structure, riveting needs to be carried out in a narrow space, and it is urgent to develop a special riveting gun.

[0034] Furthermore, in order to facilitate on-site fault handling, reduce operation risks, minimize waste of human and material resources, and lower maintenance costs, the following has been specifically formulated:

[0035] Phase 1: Determine the direction:

[0036] According to the on-site situation, after the rivets of the main transformer installation fell off, they were affected by the wiring bracket and could not be directly and quickly re-riveted. How to conveniently and simply perform riveting on the vehicle without disassembling and cutting the vehicle was the original intention of designing the special riveting gun tooling for this design. Moreover, the designed tooling should be easy to use and not bring additional learning costs to the operators.

[0037] 2. Phase 2: Measure the dimensions and draw the graphics:

[0038] Design drawing of the special riveting gun tooling for the main transformer installation beam: The on-site measurement shows that the distance from the bracket to the bottom rivet is relatively small (actually 7 cm on-site). Therefore, the length of the riveting gun head plus the riveting gun cannot be too long (not exceeding 7 cm, while traditional riveting guns are all longer than 7 cm). So, only the method of using a riveting gun adapter can be considered for riveting.

[0039] 3. Phase 3: Conduct on-site docking of the sample and optimize the design plan

[0040] Report the "riveting gun" improved according to the design to the workshop for material requisition and bidding. During the docking process with the supplier, it was found that the dimensions of each part of the tooling were reasonable, the riveting quality of the riveting gun was reliable, the operation of the operators was convenient, and it could quickly rivet the fallen-off rivets of the main transformer installation beam.

[0041] 4. Phase 4: Conduct full-scale on-site trial use. After the special riveting gun tooling for the main transformer arrived at the site, on-site verification was carried out

[0042] The external dimensions of the tooling are reasonable, and it can quickly rivet the main transformer installation beam and the bottom plate. Through trial use, it was found that the special riveting gun tooling for the main transformer installation beam is convenient to use. It can not only rivet the rivets in good condition in a narrow space, but also be used as an ordinary riveting gun in other places. At the same time, this tooling has the advantages of being convenient to pick up and not occupying too much space for storage.

[0043] Furthermore, as Figures 1 to 2As shown in the figure, the designed rivet gun includes a rivet gun connection part 1. The output end of the rivet gun connection part 1 is installed and connected with a riveting gun head set 2. A connection set 3 is installed and connected on the riveting gun head set 2. The riveting gun head set 2 and the rivet gun connection part 1 are detachably connected through the connection set 3. The connection set 3 includes a coupling sleeve 31, an outer sleeve 32 and a screw cap 33. The coupling sleeve 31 is movably sleeved on the riveting gun head set 2 and is detachably connected to one end of the riveting gun head set 2 close to the rivet gun connection part 1. An outer sleeve 32 is arranged at one end of the coupling sleeve 31 away from the rivet gun connection part 1. The outer sleeve 32 is sleeved on the riveting gun head set 2 and is detachably connected to the coupling sleeve 31. A screw cap 33 is arranged at one end of the outer sleeve 32 away from the coupling sleeve 31. The screw cap 33 is movably sleeved on the riveting gun head set 2. The riveting gun head set 2 of this rivet gun includes a fixed sleeve 21, a connecting shaft 22 and a claw sleeve assembly 23. One end of the fixed sleeve 21 close to the rivet gun connection part 1 is connected to the rivet gun connection part 1. One end of the fixed sleeve 21 away from the rivet gun connection part 1 is connected to the connecting shaft 22. A claw sleeve assembly 23 is detachably installed and connected to one end of the connecting shaft 22 away from the fixed sleeve 21. In the embodiment, the fixed sleeve 21 and the coupling sleeve 31 are detachably connected by threads. The outer sleeve 32 is movably sleeved on the claw sleeve assembly 23 and one end of the outer sleeve 32 close to the fixed sleeve 21 is sleeved in the hollow cavity of the coupling sleeve 31. The screw cap 33 is sleeved on the outer sleeve 32 and the outer sleeve 32 and the coupling sleeve 31 are detachably connected by threads through the screw cap 33. For the rivet gun improved by such design, when in use, by holding the bottom end of the rivet gun connection part 1 where a handle part is installed and connected, starting the switch 41 installed and connected on the handle part, and being powered by the battery in the battery pack 44 installed at one end of the handle part away from the rivet gun connection part 1, and then starting to control the current "rivet gun control structure" inside the rivet gun connection part 1, the rivets in the rivet gun are "fired" through the arranged riveting gun head set 2 to fix the place that needs to be fixed. The residues after the rivets are fired in the rivet gun are conveyed to the rivet collecting part 13 installed and connected at one end of the rivet gun connection part 1 away from the riveting gun head set 2 through the existing control structure inside the rivet gun connection part 1 for unified collection, and then removed and uniformly processed when not in use.

[0044] Furthermore, in the embodiment, when it is necessary to replace the riveting gun head set 2 with different shape and size according to the requirements on site, at this time, loosen the connection set 3 used to connect the riveting gun head set 2 and the rivet gun connection part 1, that is, rotate the cap 33 to remove the cap 33 from the outer sleeve 32, then rotate the outer sleeve 32 to remove the outer sleeve 32 from the coupling sleeve 31, and then rotate the coupling sleeve 31 to separate the coupling sleeve 31 from the fixed sleeve 21, exposing the connecting shaft 22 and the claw sleeve assembly 23. Remove the claw sleeve assembly 23 from the connecting shaft 22 and replace it with a claw sleeve assembly 23 of different shape and size to meet the requirements for the maintenance of the end beam of the EMU. During the use of this rivet gun, an indicator light 42 is provided on the side of the handle part of the rivet gun away from the rivet gun connection part 1 to indicate whether the rivet gun is powered on normally; at the same time, a battery self-locking button 43 is also provided on the side of the handle part away from the rivet gun connection part 1 to facilitate the replacement of the battery in the battery pack 44 and to place the battery in the battery pack 44 properly to power on the rivet gun; in addition, a hook 11 is installed and connected to the top of the rivet gun connection part 1 to facilitate hanging the rivet gun in a suitable position; also, a fault light 12 is installed and set at the top of the end of the rivet gun connection part 1 away from the riveting gun head set 2 to indicate whether the rivet gun is used normally.

[0045] Overall for this rivet gun:

[0046] 1. Safety benefits: After using the special tooling for riveting the main transformer, the fire risks of welding and cutting during off-carriage riveting can be effectively avoided, and at the same time, the risk of the main transformer installation beam falling off due to improper installation can be reduced;

[0047] 2. Economic benefits: After using the special tooling for riveting the main transformer, the replacement of excessive necessary replacement parts due to the off-carriage of the installation beam is avoided, the number of operating personnel is reduced, the procurement price of the installation parts is greatly reduced, and the cost of fault handling is also reduced;

[0048] 3. Management benefits: After using the special tooling for riveting the main transformer, the installation of numerous components is reduced, which is conducive to the implementation of on-site standardization and normalization; this tooling has achieved production closed-loop, has been reported to the tool room and equipped to the operation team for management according to the relevant requirements of the management regulations for tooling (tools) in the EMU maintenance workshop;

[0049] 4. Social benefits: It enables employees to work more safely and reassuringly on site.

[0050] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the specific details in the above-described embodiments in the specification. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model. Additionally, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. Furthermore, the above is only the preferred embodiments of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc., made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model; at the same time, any arbitrary combinations can be made between various different embodiments of the present utility model as long as they do not violate the idea of the present utility model, and they should also be regarded as the content disclosed by the present utility model.

Claims

1. A rivet gun, characterized in that, It includes a rivet gun connection part (1), and a rivet gun head set (2) is installed and connected to the output end of the rivet gun connection part (1). A connection set (3) is installed and connected to the rivet gun head set (2), and the rivet gun head set (2) is detachably connected to the rivet gun connection part (1) through the connection set (3). The rivet gun head set (2) includes a fixed sleeve (21), a connecting shaft (22), and a claw sleeve assembly (23). One end of the fixed sleeve (21) close to the rivet gun connection part (1) is connected to the rivet gun connection part (1), and one end of the fixed sleeve (21) away from the rivet gun connection part (1) is connected to the connecting shaft (22). One end of the connecting shaft (22) away from the fixed sleeve (21) is detachably installed and connected with the claw sleeve assembly (23).

2. The rivet gun according to claim 1, characterized in that, The fixed sleeve (21) is detachably connected to the coupling sleeve (31) by threads. The outer sleeve (32) is movably sleeved on the claw sleeve assembly (23), and one end of the outer sleeve (32) close to the fixed sleeve (21) is sleeved in the hollow cavity of the coupling sleeve (31). The cap (33) is sleeved on the outer sleeve (32), and the outer sleeve (32) is detachably connected to the coupling sleeve (31) by threads through the cap (33).

3. A rivet gun according to claim 1, characterized in that, The connection set (3) includes a coupling sleeve (31), an outer sleeve (32), and a cap (33). The coupling sleeve (31) is movably sleeved on the rivet gun head set (2) and is detachably connected to one end of the rivet gun head set (2) close to the rivet gun connection part (1). An outer sleeve (32) is provided at one end of the coupling sleeve (31) away from the rivet gun connection part (1). The outer sleeve (32) is sleeved on the rivet gun head set (2) and is detachably connected to the coupling sleeve (31). A cap (33) is provided at one end of the outer sleeve (32) away from the coupling sleeve (31), and the cap (33) is movably sleeved on the rivet gun head set (2).

4. A rivet gun according to claim 1, characterized in that, A hook (11) is installed and connected to the top end of the rivet gun connection part (1). A fault lamp (12) is installed and provided at the top end of one end of the rivet gun connection part (1) away from the rivet gun head set (2). A rivet needle collection part (13) is installed and connected to one end of the rivet gun connection part (1) away from the rivet gun head set (2).

5. A rivet gun according to claim 4, characterized in that, A handle part is installed and connected to the bottom end of the rivet gun connection part (1). A switch (41) is installed and connected to the handle part. An indicator lamp (42) is provided on one side of the handle part away from the rivet gun connection part (1). A battery self-locking button (43) is also provided on one side of the handle part away from the rivet gun connection part (1). A battery pack (44) is installed and provided at one end of the handle part away from the rivet gun connection part (1).

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