Multi-purpose lithium electric wrench

Abstract

The application relates to a multipurpose lithium electric wrench and relates to the technical field of railway track operation, which comprises a wrench shell, one side of the wrench shell is formed with an operation opening, and the wrench shell is internally provided with: a conversion assembly, which is used for mounting different drill bits or conversion heads; a pushing assembly, which is used for pushing the drill bit or the conversion head on the conversion assembly to the side close to the operation opening; and a clamping assembly, which is used for clamping one end of a bolt or a nut, and the clamping assembly can also clamp different drill bits or conversion heads pushed from the conversion assembly to the side of the operation opening. The application can tighten or loosen different types of bolts and nuts without manually replacing the conversion head or the drill bit during use, in addition, the application can clean the aged bolt, the nut or the corroded track surface, so that the bolt and the nut can be separated from the workpiece, the working strength of the staff is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of tool technology, and in particular to a multi-purpose lithium-ion wrench. Background Technology

[0002] A "lithium-ion battery wrench" is an electric wrench that uses a lithium-ion battery as its power source. Lithium-ion battery wrenches are power tools typically used to tighten or loosen bolts and nuts. Lithium-ion batteries are a lightweight, high-energy-density battery type, and are therefore widely used in power tools to provide a reliable power source.

[0003] Electric wrenches are typically designed to improve work efficiency, especially in situations where a large number of bolts or nuts need to be tightened.

[0004] A Chinese patent with publication number CN216265724U discloses a lithium battery wrench, including a device housing. A mounting plate is bolted to the front end of the device housing. An adapter housing is fixedly connected to the mounting plate. A first helical gear and a second helical gear are provided inside the adapter housing. A connecting groove is opened on one side of the first helical gear. An adapter is fixedly connected to the top of the second helical gear. An extension shaft is fixedly connected to the bottom of the second helical gear. A correction plate is fixedly connected inside the adapter housing.

[0005] In use, the connecting slot, adapter two, first helical gear and second helical gear are provided. The rotating head of the original lithium battery wrench can be inserted into the connecting slot, which drives the first helical gear to rotate, thereby driving the adapter two and second helical gear to rotate.

[0006] Regarding the aforementioned technologies, currently, lithium battery wrenches can only tighten or loosen bolts or nuts of one size per operation. If it is necessary to tighten or loosen bolts or nuts of other sizes, the adapter needs to be manually replaced. In addition, when bolts or nuts rust or age due to long-term use, they need to be machined to detach them from the workpiece, which increases the workload of the workers and reduces work efficiency. Summary of the Invention

[0007] The technical problem to be solved by this invention is to provide a multi-purpose lithium battery wrench, which solves the problem that current lithium battery wrenches can only tighten or loosen bolts or nuts of one size in a single operation. If it is necessary to tighten or loosen bolts or nuts of other sizes, the adapter needs to be manually replaced. In addition, when bolts or nuts rust or age due to long-term use, they need to be turned to remove them from the workpiece, which increases the workload of workers and reduces work efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A multi-purpose lithium-ion battery wrench includes a wrench housing, one side of which has an operating opening. The wrench housing is characterized by having:

[0010] A conversion assembly for mounting different drill bits or adapters, wherein as the conversion assembly is switched within the wrench housing, the different drill bits or adapters on the conversion assembly correspond to the operating ports of the wrench housing;

[0011] A propulsion assembly for pushing the drill bit or converter head on the conversion assembly toward the side closer to the operating port;

[0012] A clamping assembly for clamping one end of a bolt or nut, and also for clamping different drill bits or adapters pushed from the conversion assembly to the operating port side.

[0013] The above technical solution allows different drill bits and adapters to be mounted on a conversion assembly. In use, the adapter is used to match different drill bits or adapters to the operating port. Then, the push assembly pushes the corresponding drill bit or adapter towards the side closest to the operating port. The clamping assembly then clamps the drill bit or adapter closest to the operating port. Simultaneously, the clamping assembly can also clamp bolts and nuts of different signals, allowing the wrench to tighten or loosen different types of bolts and nuts without manually changing the adapter. Furthermore, it can machine aging bolts or nuts, detaching them from the workpiece, reducing the workload of workers and improving work efficiency.

[0014] Furthermore, the conversion component includes a rotating disk, which is rotatably mounted inside the wrench housing. The rotating disk has a sliding cavity that corresponds to the operating port. In addition, the rotating disk also has sliding grooves, which are spaced apart and communicate with the sliding cavity. Each of the sliding grooves has a mounting cylinder that is slidably embedded in it. The mounting cylinder has a mounting hole inside. Furthermore, a tension spring is provided between the mounting cylinder and the rotating disk, with one end connected to the rotating disk and the other end connected to the mounting cylinder.

[0015] The above technical solution involves installing the drill bit or adapter into the mounting hole of the mounting cylinder. When in use, the mounting cylinder is pushed along the slide groove into the slide cavity of the rotating disk, so that the drill bit or adapter on the mounting cylinder corresponds to the operating port on the wrench housing. When not in use, the mounting cylinder is released, and the spring is tightened to remove the mounting cylinder from the slide cavity along the slide groove.

[0016] Furthermore, the rotating disk is provided with teeth, and a plurality of teeth are spaced apart on the outer side of the rotating disk. The wrench housing is provided with a driving gear and a driven gear. The driven gear meshes with the teeth on the rotating disk, and the driving gear meshes with the driven gear. In addition, the wrench housing is provided with a drive motor, and the output shaft of the drive motor is connected to the driving gear.

[0017] Through the above technical solution, the drive motor drives the active gear to rotate, the active gear drives the driven gear to rotate, and during the rotation of the driven gear, the rotating disk rotates, thereby improving the convenience of switching between drill bits or conversion heads on the rotating disk.

[0018] Furthermore, a first push block is slidably installed inside the wrench housing. A pressure rod is provided on the first push block, one end of which is connected to the first push block, and the other end extends towards the side closer to the rotating disk. A push plate is provided inside the wrench housing, and a push rod is provided on one side of the push plate. One end of the push rod is connected to the push plate, and the other end extends towards the side closer to the first push block. A second push block is provided on the side of the push rod closer to the first push block. A first guide slope is formed on the first push block, and a second guide slope is formed on the second push block. The first guide slope and the second guide slope are arranged parallel to each other at intervals.

[0019] With the above technical solution, the push plate drives the second push block to slide towards the side closer to the rotating disk through the push rod. As the second push block pushes, the second guide slope on the second push block abuts against the first guide slope on the first push block. As the first push block moves, the first push block pushes the mounting cylinder along the slide groove towards one side of the slide cavity through the push rod, thereby improving the ease of movement of the mounting cylinder.

[0020] Furthermore, the propulsion assembly includes a first base, which is installed inside the wrench housing, and a second base is provided on one side of the first base. A slide plate is slidably disposed inside the second base. The slide plate is slidably installed inside the second base. In addition, a connecting rod is provided on the side of the slide plate opposite to the first base. One end of the connecting rod is connected to the slide plate, and the other end is provided with a top plate, which is connected to the push plate.

[0021] With the above technical solution, the slide plate slides within the second base. As the slide plate slides back and forth within the second base, the slide plate drives the top plate to move via the connecting rod. Since the top plate is connected to the push plate, as the slide plate moves, the push plate drives the second push block to move within the wrench housing, thereby improving the convenience of the first push block in pushing the mounting cylinder.

[0022] Furthermore, a top membrane is provided between the first base and the second base, and a bending portion is formed on the top membrane. The top membrane bends towards the side closer to the first base through the bending portion. An air cavity is formed between the top membrane and the first base. An air passage is formed on the first base, and the air passage communicates with the air cavity.

[0023] Through the above technical solution, gas is introduced into the air chamber through the air passage. As the gas in the air chamber increases, the top membrane folds towards the side closer to the slide plate through the bending part. The top membrane lifts the slide plate, allowing the slide plate to slide within the second base.

[0024] Furthermore, the wrench housing has a guide groove on the side near the operating port, and several guide grooves are spaced around the operating port. The clamping assembly includes a tool holder, which corresponds to the guide groove and slides in cooperation with it. In addition, a chuck is provided on the tool holder and is mounted on the tool holder.

[0025] With the above technical solution, the chuck is installed on the tool holder. When it is necessary to clamp an object, the tool holder drives the chuck to move along the guide groove to the side closer to the operating port, thereby clamping the object.

[0026] Furthermore, a drive disc is provided on the side of the wrench housing near the operating port. The drive disc is rotatably mounted on the wrench housing, and the tool holder is connected to the drive disc. In addition, the clamping assembly includes a first rotating gear and a second rotating gear. The first rotating gear is mounted on the drive disc. A rotary motor is provided on the wrench housing. The second rotating gear is mounted on the output shaft of the rotary motor. Furthermore, a rotating belt is provided between the first rotating gear and the second rotating gear, and the rotating belt is sleeved on the first rotating gear and the second rotating gear.

[0027] Through the above technical solution, the rotating motor drives the second rotating gear to rotate. As the second rotating gear rotates, it drives the first rotating gear to rotate via a rotating belt. As the first rotating gear rotates, the drive disc drives the tool holder to slide towards the side closer to the operating port, thereby improving the ease of movement of the tool holder.

[0028] Furthermore, the wrench housing is provided with heat dissipation holes, and several heat dissipation holes are spaced apart on the wrench housing.

[0029] With the above technical solution, heat will be generated inside the wrench housing during the operation of bolts or nuts. Therefore, as the wrench housing rotates, the heat inside the wrench housing will be blown out from the wrench housing through the heat dissipation holes.

[0030] Furthermore, the wrench housing is provided with a mounting plate, the mounting plate is provided with a mounting block, and the mounting block has a through hole that extends through both sides of the mounting block.

[0031] With the above technical solution, the mounting block is installed on the wrench housing via the mounting plate. When in use, the robotic arm is connected to the through hole on the mounting block, and the robotic arm drives the entire wrench housing to rotate.

[0032] In summary, this application includes at least one of the following beneficial technical effects of a multi-purpose lithium-ion battery wrench:

[0033] In use, different drill bits and adapters are mounted on the conversion assembly. The adapters are used to match different drill bits or adapters to the operating port. Then, the push assembly pushes the corresponding drill bit or adapter towards the side closer to the operating port. After that, the clamping assembly clamps the drill bit or adapter near the operating port. At the same time, the clamping assembly can also clamp bolts and nuts of different signals, so that the wrench can tighten or loosen different types of bolts and nuts without manually changing the adapter. In addition, it can also turn old bolts or nuts to remove them from the workpiece, reducing the workload of the workers and improving work efficiency. Attached Figure Description

[0034] Figure 1 This embodiment mainly illustrates the overall structure of a multi-purpose lithium battery wrench;

[0035] Figure 2 This embodiment mainly illustrates the exploded view of the mounting plate structure;

[0036] Figure 3 This embodiment mainly illustrates the rotating disk structure.

[0037] Figure 4 This embodiment mainly illustrates the exploded view of the mounting cylinder structure;

[0038] Figure 5 This embodiment mainly illustrates the explosion diagram of the top membrane structure;

[0039] Figure 6 This embodiment mainly shows the cross-sectional view of the top membrane structure;

[0040] Figure 7 This embodiment mainly illustrates the cooperation between the first push block and the second push block;

[0041] Figure 8 This is a schematic diagram illustrating the main structure of the tool holder in this embodiment;

[0042] Figure 9 This embodiment mainly illustrates the exploded view of the tool holder structure;

[0043] Figure 10 This embodiment mainly illustrates the exploded view of the drive disk structure;

[0044] Figure 11 This embodiment mainly shows the internal structure of the wrench housing.

[0045] Figure label:

[0046] 1. Wrench housing; 11. Operating port; 12. Mounting plate; 13. Mounting block; 131. Through hole; 132. Mounting bevel; 14. First connecting plate; 15. Second connecting plate; 151. Connecting bolt; 152. Nut; 16. Heat dissipation hole;

[0047] 2. Conversion assembly; 21. Rotating disk; 211. Slide cavity; 212. Slide groove; 213. Extension plate; 214. Limiting groove; 215. Tooth; 22. Limiting block; 23. Mounting rod; 24. Mounting cylinder; 241. Mounting hole; 242. Limiting ball; 243. Pressing spring; 244. Limiting ring; 25. Tensioning spring; 26. Driving gear; 261. Driven gear; 262. Drive motor; 27. First push block; 271. First guide slope; 272. Guide rod; 273. Pressure rod; 274. Limiting plate; 275. Support spring; 28. Push plate; 281. Push rod; 29. ​​Second push block; 291. Second guide slope;

[0048] 3. Propulsion assembly; 31. First base; 311. Fixing bolt; 32. Second base; 321. Sliding hole; 322. Sliding groove; 33. Top membrane; 331. Bending part; 34. Air chamber; 35. Air passage; 36. Slide plate; 361. Sliding block; 362. Top plate; 363. Connecting rod;

[0049] 4. Clamping assembly; 41. Tool holder; 411. Pull groove; 412. Pull stud; 413. Contact head; 43. Chuck; 431. Pull block; 432. Abutting surface; 44. Drive disc; 441. V-groove; 442. First pressing surface; 443. Second pressing surface; 45. First rotating gear; 451. Rotating motor; 452. Second rotating gear; 453. Rotating belt. Detailed Implementation

[0050] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific embodiments.

[0051] The following combination Figure 1-11 This application will be described in further detail.

[0052] This application discloses a multi-purpose lithium battery wrench.

[0053] Reference Figures 1-2 A multi-purpose lithium-ion battery wrench includes a wrench housing 1, with an operating port 11 on one side. Inside the wrench housing 1 are a conversion assembly 2, a push assembly 3, and a clamping assembly 4. Different drill bits and conversion heads are mounted on the conversion assembly 2. In use, the conversion assembly 2 converts the drill bits and conversion heads to correspond with the operating port 11. When a drill bit or conversion head is aligned with the operating port 11, the push assembly 3 pushes it closer to the operating port 11. When the drill bit or conversion head moves close to the operating port 11, the clamping assembly 4 clamps it.

[0054] The wrench housing 1 has a hollow cylindrical shell structure, and the operating port 11 is opened at one end along the axis of the wrench housing 1. When in use, the workpiece is operated through the operating port 11 on the wrench housing 1. In addition, one side of the wrench housing 1 along the axis is open relative to the side of the operating port 11.

[0055] Furthermore, a mounting plate 12 is provided on the wrench housing 1. The mounting plate 12 is generally circular and covers one side of the open portion of the wrench housing 1. Additionally, a mounting block 13 is provided on the mounting plate 12. One end of the mounting block 13 is integrally formed with the mounting plate 12, and the other end extends away from the mounting plate 12. A through hole 131 is provided on the mounting block 13, allowing the wrench housing 1 to be mounted on a robotic arm through the through hole 131 in the mounting block 13 during use. When operating on a workpiece, the robotic arm drives the wrench housing 1 to rotate.

[0056] When installing the wrench housing 1, a mounting bevel 132 is formed on the mounting block 13. The mounting bevel 132 is inclined toward the side facing the through hole 131. In use, the mounting bevel 132 on the mounting block 13 guides the robotic arm, thereby improving the convenience of connecting the wrench housing 1 to the robotic arm.

[0057] In this technology, a robotic arm is a mechanical device capable of performing specific tasks. It typically has multiple joints and connecting components, mimicking the movement structure of humans or animals. When the wrench housing 1 is mounted on the robotic arm, the robotic arm can drive the wrench housing 1 to rotate rapidly.

[0058] During use, the robotic arm needs to rotate the wrench housing 1, and a large torque is generated between the wrench housing 1 and the mounting plate 12 when the wrench housing 1 operates on the workpiece. To improve the stability of the structure between the wrench housing 1 and the mounting plate 12, a first connecting plate 14 is provided on the wrench housing 1. Several first connecting plates 14 are evenly spaced around the axis of the wrench housing 1, with one end of each first connecting plate 14 integrally formed with the wrench housing 1 and the other end extending away from the wrench housing 1. In addition, a second connecting plate 15 is provided on the mounting plate 12, corresponding to the first connecting plate 14. One end of the second connecting plate 15 is connected to the mounting plate 12, and the other end extends away from the mounting plate 12.

[0059] Each of the several second connecting plates 15 is provided with a connecting bolt 151. One end of the connecting bolt 151 passes through the second connecting plate 15 and the first connecting plate 14 in sequence, and a nut 152 is provided at the end of the connecting bolt 151 that passes through the first connecting plate 14. The nut 152 is threaded onto the connecting bolt 151, and one side of the nut 152 abuts against the first connecting plate 14. In use, the mounting plate 12 is locked onto the wrench housing 1 by the connecting bolts 151 and the nuts 152, thereby improving the stability between the wrench housing 1 and the robotic arm when the wrench housing 1 is operating on the workpiece.

[0060] Reference Figures 3-4 The conversion component 2 includes a rotating disk 21, which is generally circular and rotatably mounted inside the wrench housing 1. The axis of the rotating disk 21 is coaxial with the axis of the wrench housing 1. To enable the rotating disk 21 to rotate within the wrench housing 1, a limiting block 22 is provided inside the wrench housing 1. The limiting block 22 has an arc-shaped cross-section, and its axis is coaxial with the axis of the rotating disk 21.

[0061] Three limiting blocks 22 are evenly spaced around the axis of the rotating disk 21. Each of the three limiting blocks 22 has a mounting rod 23 on the side facing away from the rotating disk 21. One end of each mounting rod 23 is connected to a limiting block 22, and the other end is connected to the inner side of the wrench housing 1. In use, the rotating disk 21 is rotatably mounted between the three limiting blocks 22, and the outer wall of the rotating disk 21 contacts the side of the three limiting blocks 22 facing away from the mounting rod 23.

[0062] A sliding cavity 211 is provided at the axis of the rotating disk 21, extending through both sides of the rotating disk 21 in the thickness direction. The sliding cavity 211 and the operating port 11 of the wrench housing 1 are on the same axial direction, and the operating port 11 communicates with the sliding cavity 211. In addition, three sliding grooves 212 are provided on the rotating disk 21, evenly spaced around the axis of the rotating disk 21, and one end of each of the three sliding grooves 212 communicates with the sliding cavity 211.

[0063] Furthermore, the rotating disk 21 is provided with three mounting cylinders 24, all of which are cylindrical, and their axes are parallel to and spaced apart from the axis of the rotating disk 21. In addition, the three mounting cylinders 24 are slidably engaged with three sliding grooves 212.

[0064] The mounting cylinder 24 has a mounting hole 241 formed on its inner side, which extends through both sides of the mounting cylinder 24 along its axial direction. In use, the drill bit or adapter passes through the mounting hole 241 and is mounted on the mounting cylinder 24. To improve the stability of the drill bit or adapter when mounted on the mounting cylinder 24, a limiting ball 242 and a clamping spring 243 are provided on the inner side of the mounting cylinder 24. When the drill bit or adapter passes through the mounting hole 241, the limiting ball 242 presses against the drill bit or adapter, and the clamping spring 243 is compressed. The clamping spring 243 presses the limiting ball 242 against the drill bit or adapter, thereby improving the stability of the drill bit or adapter on the mounting cylinder 24.

[0065] In addition, tension springs 25 are provided between each of the three mounting cylinders 24 and the rotating disk 21. Two tension springs 25 are spaced apart on each corresponding mounting cylinder 24. One end of each tension spring 25 is connected to the mounting cylinder 24, and the other end is connected to the side of the slide groove 212 away from the slide cavity 211. In use, the tension springs 25 pull the mounting cylinder 24 away from the slide cavity 211.

[0066] When a drill bit or adapter is needed, the mounting cylinder 24 is moved along the slide groove 212 toward the side closer to the slide cavity 211. At this time, the tension spring 25 is in a tensioned state on the mounting cylinder 24. When the mounting cylinder 24 moves into the slide cavity 211, the drill bit or adapter on the mounting cylinder 24 is pushed toward the operating port 11.

[0067] To improve the stability of the mounting cylinder 24 sliding within the slide groove 212, an extension plate 213 is provided on the rotating disk 21. The extension plate 213 is arranged around the periphery of the slide cavity 211 and the slide groove 212, with one end of the extension plate 213 integrally formed with the rotating disk 21 and the other end extending to both sides in the thickness direction of the rotating disk 21, thereby improving the stability of the mounting cylinder 24 sliding within the rotating disk 21. Furthermore, when the mounting cylinder 24 moves into the slide cavity 211, the drill bit or adapter head inside the mounting cylinder 24 needs to be pushed out. During the process of pushing the drill bit or adapter head out of the mounting cylinder 24, measures are taken to prevent the mounting cylinder 24 from detaching from the rotating disk 21. Therefore, a limiting groove 214 is provided on the inner side wall of the rotating disk 21, which is composed of the sliding cavity 211 and the sliding groove 212, and a limiting ring 244 is provided on each of the three mounting cylinders 24. The limiting ring 244 is sleeved on the mounting cylinder 24, and the limiting ring 244 slides in cooperation with the limiting groove 214. On the one hand, the sliding cooperation between the limiting ring 244 and the limiting groove 214 improves the stability of the mounting cylinder 24 sliding on the rotating disk 21. On the other hand, the limiting groove 214 limits the mounting cylinder 24, thereby preventing the mounting cylinder 24 from easily detaching from the rotating disk 21 when the drill bit or adapter is pushed out of the mounting cylinder 24.

[0068] In practical application, in order to enable the rotating disk 21 to rotate, teeth 215 are provided on the periphery of the rotating disk 21. Several teeth 215 are evenly spaced around the axis of the rotating disk 21, and all teeth 215 are integrally formed with the rotating disk 21.

[0069] Furthermore, the wrench housing 1 is equipped with a drive gear 26 and a driven gear 261, both rotatably connected within the wrench housing 1. The driven gear 261 meshes with the teeth 215 on the rotating disk 21. Additionally, a drive motor 262 is installed within the wrench housing 1. When the drive gear 26 of the drive motor 262 rotates, it drives the driven gear 261 to rotate, which in turn drives the rotating disk 21 to rotate. During operation, the drive motor 262 drives the rotating disk 21 to rotate 120 degrees each time.

[0070] In this application, the driving gear 26 and driven gear 261 have 17 teeth each, while the rotating disk 21 has 100 teeth. The formula for calculating the full speed of the driving gear 26 when the rotating disk 21 needs to rotate 1 / 3 each time is as follows:

[0071] Set the number of teeth 215 of the drive gear 26 to a, the number of teeth 215 of the rotating disk 21 to b, and the number of rotations of the rotating disk 21 to c.

[0072] a / b=c

[0073] Therefore, in this application, when the rotating disk 21 rotates 120 degrees, the drive motor 262 drives the drive gear 26 to rotate 1.96 revolutions.

[0074] When in use, the three mounting cylinders 24 of the rotating disk 21 are set to positions 1-3, and the initial position of the rotating disk 21 is position 1. When the rotating disk 21 rotates one revolution, the rotating disk 21 returns to position 1 to rotate the drill bit or the conversion head.

[0075] In order to improve the convenience of selecting the drill bit or adapter each time, a first push block 27 is provided inside the wrench housing 1. The first push block 27 is horizontally arranged, and a first guide slope 271 is provided on the side of the first push block 27 away from the operating port 11. The first guide slope 271 slopes downward from the side of the operating port 11 towards the side closer to the rotating disk 21.

[0076] In addition, two guide rods 272 are provided on each side of the first push block 27 in the horizontal direction. One end of each guide rod 272 is connected to the inner wall of the wrench housing 1, and the other end passes through the first push block 27, so that the first push block 27 can slide along the axial direction of the guide rod 272.

[0077] The first push block 27 is provided with pressure rods 273, which are located on both sides of the rotating disk 21 in the thickness direction. One end of each pressure rod 273 is connected to the first push block 27, and the other end extends towards the side closer to the rotating disk 21. In use, as the first push block 27 moves along the guide rod 272 towards the side closer to the rotating disk 21, the pressure rods 273 on the first push block 27 move the mounting cylinder 24 into the sliding cavity 211.

[0078] Furthermore, to prevent the pressure rod 273 from affecting the rotation of the rotating disk 21, a limit plate 274 is provided at one end of each of the four guide rods 272 near the rotating disk 21. A support spring 275 is provided between the four limit plates 274 and the first push block 27, and the support spring 275 is sleeved on the guide rod 272. When the first push block 27 moves towards the side closer to the rotating disk 21, the support spring 275 is compressed. When the first push block 27 is released, the support spring 275 pushes the first push block 27 up.

[0079] Reference Figures 5-6Furthermore, a push plate 28 is provided inside the wrench housing 1. The push plate 28 is generally circular and is located on the side of the rotating disk 21 away from the operating port 11 in the thickness direction. The axis of the push plate 28 is coaxial with the axis of the rotating disk 21. A second push block 29 is provided on one side of the first push block 27. A push rod 281 is provided between the second push block 29 and the push plate 28. One end of the push rod 281 is connected to the push plate 28, and the other end is connected to the second push block 29. A second guide slope 291 is provided on the side of the second push block 29 near the first push block 27. The second guide slope 291 is parallel to and spaced apart from the first guide slope 271. The second guide slope 291 slopes upward from one side of the rotating disk 21 towards the side near the operating port 11. When the push plate 28 moves toward the side closer to the rotating disk 21, the second guide slope 291 on the second push block 29 abuts against the first guide slope 271 on the first push block 27. As the second push block 29 moves toward the side closer to the operating port 11, the second push block 29 presses the first push toward the side closer to the rotating disk 21, thereby enabling the mounting cylinder 24 to move into the sliding cavity 211.

[0080] The push assembly includes a first base 31 and a second base 32. The first base 31 and the second base 32 are cylindrical in shape. The second base 32 is installed inside the wrench housing 1. A top membrane 33 is provided between the first base 31 and the second base 32. The periphery of the top membrane 33 is clamped between the first base 31 and the second base 32. A fixing bolt 311 is provided on the first base 31. Several fixing bolts 311 are spaced apart on the first base 31. One end of several fixing bolts 311 passes through the first base 31 and is threadedly connected to the second base 32.

[0081] Furthermore, a bend 331 is formed on the top membrane 33, through which the top membrane 33 bends. In the initial state, the top membrane 33 bends towards the side closer to the first base 31 via the bend 331. Further, an air cavity 34 is formed between the top membrane 33 and the first base 31, and an air passage 35 is formed on the first base 31. One end of the air passage 35 is connected to the outside of the first base 31, and the other end communicates with the air cavity 34 inside the first base 31. In use, one end of an external air supply pipe is connected to the air cavity 34 on the first base 31. During use, air is supplied to the air cavity 34 of the first base 31 through the air passage 35. As the space inside the air cavity 34 is filled with gas, the top membrane 33 is pushed towards the side closer to the second base 32 via the bend 331.

[0082] Furthermore, a sliding hole 321 is formed within the second base 32. The axis of the sliding hole 321 is coaxial with the axis of the second base 32, and the sliding hole 321 passes through both ends of the second base 32 along the axial direction. In addition, a sliding plate 36 is provided within the second base 32. The sliding plate 36 is generally circular, and its axis is coaxial with the axis of the second base 32. The outer side wall of the sliding plate 36 abuts against the inner side wall of the second base 32. In use, the sliding plate 36 moves towards the side of the rotating disk 21 first under the action of the top film 33.

[0083] To improve the stability of the sliding plate 36 within the second base 32, a sliding groove 322 is provided on the inner side of the second base 32. Several sliding grooves 322 are evenly spaced around the axis of the second base 32, and the length direction of these grooves is the same as the axis of the second base 32. A sliding block 361 is provided on the sliding plate 36, corresponding to the sliding groove 322. One end of the sliding block 361 is integrally formed with the sliding plate 36, while the other end slides into the corresponding sliding groove 322. This ensures that when the top membrane 33 pushes the sliding plate 36 towards the side closer to the rotating disk 21, the sliding plate 36 will not detach from the second base 32.

[0084] Reference Figure 7 A top plate 362 is provided on the side of the slide plate 36 near the rotating disk 21 in the thickness direction. The top plate 362 and the slide plate 36 are arranged parallel to each other and spaced apart. The top plate 362 is connected to the push plate 28 by bolts. In use, one end of the bolt passes through the push plate 28 and connects to the top plate 362. In addition, a connecting rod 363 is provided between the top plate 362 and the slide plate 36. One end of the connecting rod 363 is connected to the top plate 362 and the other end is connected to the slide plate 36. In use, gas is introduced into the air chamber 34 through the air passage 35. As the gas in the air chamber 34 increases, the top membrane 33 pushes the slide plate 36 towards the side closer to the rotating disk 21. The slide plate 36 moves towards the side closer to the rotating disk 21 along the axis of the second base 32. As the slide plate 36 moves, the top plate 362 pushes the push plate 28 towards the side closer to the rotating disk 21. As the push plate 28 moves, the second push block 29 pushes the first push block 27 towards the side closer to the rotating disk 21. As the mounting cylinder 24 moves into the sliding cavity 211 under the action of the push rod 281, the support spring 275 on the guide rod 272 is compressed. As the mounting cylinder 24 moves into the sliding cavity 211, the push plate 28 pushes the drill bit or adapter from the mounting cylinder 24 toward the side closer to the operating port 11.

[0085] When the air supply to the air chamber 34 is stopped, the support spring 275 pushes the first push block 27 upward. At this time, the second push block 29 moves away from the rotating disk 21 under the action of the first push block 27. Simultaneously, the top plate 362 moves towards the first base 31 under the action of the push plate 28, thereby causing the top membrane 33 to bend towards the first base 31 through the bending part 331.

[0086] Reference Figure 8 The clamping assembly 4 includes a tool holder 41, and the wrench housing 1 has a guide groove on the side near the operating port 11. The guide groove is evenly spaced in eight places around the axis of the operating port 11. At the same time, one end of each of the eight guide grooves is connected to the operating port 11. In addition, the tool holder 41 corresponds to the guide groove, and the tool holder 41 is slidably installed in the corresponding guide groove.

[0087] Furthermore, each of the tool holders 41 is equipped with a chuck 43, and the tool holder 41 has a pull groove 411. The chuck 43 is equipped with a pull block 431, one end of which is integrally formed with the chuck 43, and the other end is fitted into the pull groove 411. In use, the chuck 43 slides in the guide groove along with the tool holder 41. By moving all eight chucks 43 simultaneously toward one side or away from each other, the chucks 43 can clamp the drill bit or adapter.

[0088] Reference Figures 9-10 Furthermore, a clamping surface 432 is formed on the side of the chuck 43 near the operating port 11. The clamping surface 432 is horizontally positioned. During use, the clamping surface 432 presses against the surface of the object, thereby improving the stability of the chuck 43 in clamping the object. In use, the chuck 43 can clamp the outer surface of the bolt or nut 152, thus eliminating the need for a conversion adapter to tighten or loosen the bolt or nut 152. A conversion adapter is only required when tightening or loosening internal bolts.

[0089] In order to enable the eight tool holders 41 to move simultaneously toward or away from each other during use, the clamping assembly 4 also includes a drive disk 44. The drive disk 44 is connected to the side of the wrench head near the operating port 11 and covers the guide groove. When in use, the drive disk 44 covers the guide groove, which can prevent the tool holders 41 from falling off during the sliding process in the guide groove, thereby improving the stability of the sliding of the tool holders 41.

[0090] Furthermore, a V-groove 441 is provided on the side of the drive disk 44 near the operation port 11 in the thickness direction. The V-groove 441 corresponds to the tool holder 41. In addition, a pull stud 412 is provided on the tool holder 41. One end of the pull stud 412 is connected to the tool holder 41, and the other end is fitted into the corresponding V-groove 441.

[0091] A contact 413 is provided on the side of the tool holder 41 away from the chuck 43, and the contact 413 slides from the tool holder 41 towards the side closer to the drive disk 44. Furthermore, a first clamping surface 442 and a second clamping surface 443 are provided on the inner side of the drive disk 44, and eight sets of the first clamping surface 442 and the second clamping surface 443 are spaced apart on the drive disk 44. In use, the contact 413 of the tool holder 41 contacts the corresponding first clamping surface 442 and second clamping surface 443 on the drive disk 44.

[0092] In this application, the angle of the first clamping surface 442 is 30-50°, preferably 30°. The angle of the second clamping surface 443 is 5-10°, preferably 5°. The first clamping surface 442 and the second clamping surface 443 of the same group are connected. In use, the first clamping surface 442 provides a larger travel distance for the tool holder 41, while the second clamping surface 443 allows the chuck 43 to clamp the object more firmly. Therefore, in use, the drive disc 44 rotates within the wrench housing 1. As the drive disc 44 rotates, the tool holder 41 clamps the object under the action of the first clamping surface 442 and the second clamping surface 443. When it is necessary to release the object, the drive disc 44 rotates in the opposite direction. As the drive disc 44 rotates in the opposite direction, the tool holder 41 moves synchronously to the side away from the tool holder 41 under the action of the pull stud 412.

[0093] To enable the drive disc 44 to rotate within the wrench housing 1, the clamping assembly 4 further includes a first rotating gear 45, which is mounted on the drive disc 44. Additionally, a rotating motor 451 is mounted on the outer side of the wrench housing 1, and a second rotating gear 452 is mounted on the output shaft of the rotating motor 451. A rotating belt 453 is positioned between the first rotating gear 45 and the second rotating gear 452, and is fitted onto both gears. The inner side of the rotating belt 453 is toothed, and it meshes with both the first rotating gear 45 and the second rotating gear 452. In use, the rotating motor 451 drives the second rotating gear 452 to rotate, and the second rotating gear 452, in turn, drives the first rotating gear 45 to rotate via the rotating belt 453.

[0094] By rotating the motor 451, the second rotating gear 452 is driven to rotate forward and backward, thereby causing the chuck 43 to clamp and release the object.

[0095] Reference Figure 11 When in use, mount the mounting block 13 at one end of the wrench housing 1 onto the robotic arm, so that the mounting block 13 is connected to the robotic arm through the through hole 131.

[0096] The drive motor 262 drives the drive gear 26 to rotate, the drive gear 26 drives the driven gear 261 to rotate, and the driven gear 261 drives the rotating disk 21 to rotate. When the corresponding mounting cylinder 24 on the rotating disk 21 rotates to the designated position, gas is introduced into the air chamber 34 through the air passage 35. As the gas in the air chamber 34 increases, the top membrane 33 is pushed up to the side away from the first base 31 through the bending part 331. When the top membrane 33 contacts the slide plate 36, as the top membrane 33 is continuously pushed up, the slide plate 36 moves along the axis of the second base 32 to the side away from the first base 31.

[0097] As the slide plate 36 moves, the top plate 362 moves the push plate 28 toward the side closer to the rotating disk 21. As the push plate 28 moves, the second guide slope 291 on the second push block 29 contacts the first guide slope 271 on the first push block 27. At this time, the first push block 27 moves down along the axis of the guide rod 272. During the downward movement of the first push block 27, the mounting cylinder 24 moves along the slide groove 212 toward the slide cavity 211. At the same time, the support spring 275 between the first push block 27 and the limiting plate 274 is compressed.

[0098] As the mounting cylinder 24 moves toward the sliding cavity 211, the push plate 28 pushes the corresponding drill bit or adapter inside the mounting cylinder 24 toward the side closer to the operating port 11. When the mounting cylinder 24 is completely embedded in the sliding cavity 211, one end of the drill bit or adapter is inserted into the corresponding mounting cylinder 24, and the other end protrudes from the operating port 11 of the wrench housing 1.

[0099] Furthermore, the rotating motor 451 drives the second rotating gear 452 to rotate clockwise. The second rotating gear 452 drives the first rotating gear 45 to rotate via the rotating belt 453. As the first rotating gear 45 rotates, the drive disk 44 rotates. During the rotation of the drive disk 44, the contact 413 on the tool holder 41 slides along the first and second clamping inclined surfaces. When the chuck 43 clamps the object, the rotating motor 451 stops rotating.

[0100] When operating on the workpiece, the robotic arm drives the wrench housing 1 to rotate, thereby tightening or loosening the bolts and nuts 152, or turning the workpiece.

[0101] When it is necessary to change the drill bit or adapter, the rotating motor 451 drives the second rotating gear 452 to reverse. The second rotating gear 452 drives the first rotating gear 45 to reverse via the rotating belt 453. The first rotating gear 45 drives the drive disk 44 to reverse. As the drive disk 44 rotates, the pull pin 412 slides along the V-groove 441 of the drive disk 44, thereby causing the eight tool holders 41 to slide away from the operating port 11. Since one end of the drill bit or adapter is still connected to the mounting sleeve 24 and held in place by the limiting ball 242 at this time, the drill bit or adapter will not fall off the wrench housing 1 after the chuck 43 is released.

[0102] At this time, the robotic arm moves the wrench housing 1 to a protruding obstacle with a diameter similar to that of a drill bit or adapter, and pushes the drill bit or adapter back into the mounting cylinder 24 through the obstacle.

[0103] Then, the gas filling into the air chamber 34 is stopped. At this time, the mounting cylinder 24 moves away from the slide chamber 211 under the action of the tension spring 25. At this time, the first push block 27 moves vertically upward along the guide rod 272. As the first push block 27 moves, the first guide slope 271 on the first push block 27 guides the second push block 29, thereby causing the second push block 29 to move horizontally away from the rotating disk 21. As the second push block 29 and the push plate 28 move, the slide plate 36 and the top membrane 33 both move closer to the first base 31.

[0104] When operating a workpiece, heat is generated inside the wrench housing 1 as it rotates. If the heat inside the wrench housing 1 is not dissipated in time, it will affect the normal use of the components inside the wrench housing 1. Therefore, heat dissipation holes 16 are provided on the wrench housing 1, and the heat dissipation holes 16 penetrate the side wall of the wrench housing 1.

[0105] In addition, to enhance the ventilation of the wrench housing 1, the heat dissipation hole 16 is set at an angle, so that external cold air can enter the wrench housing 1 during rotation.

[0106] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-purpose lithium-ion battery wrench, comprising a wrench housing (1), wherein an operating port (11) is formed on one side of the wrench housing (1), characterized in that: The wrench housing (1) is provided with: A conversion assembly (2) is used to install different drill bits or conversion heads. As the conversion assembly (2) is converted within the wrench housing (1), the different drill bits or conversion heads on the conversion assembly (2) correspond to the operating port (11) of the wrench housing (1). The propulsion assembly (3) is used to push the drill bit or conversion head on the conversion assembly (2) toward the side closer to the operating port (11); Clamping assembly (4) is used to clamp one end of a bolt or nut, and can also clamp different drill bits or adapters pushed from the conversion assembly (2) to the operating port (11); The conversion component (2) includes a rotating disk (21), which is rotatably mounted inside the wrench housing (1). The rotating disk (21) has a sliding cavity (211) that corresponds to the operating port (11). In addition, the rotating disk (21) also has a sliding groove (212). Several sliding grooves (212) are spaced apart on the rotating disk (21), and all of the sliding grooves (212) are connected to the sliding cavity (211). A mounting cylinder (24) is slidably embedded in each of the sliding grooves (212). The mounting cylinder (24) has a mounting hole (241) inside. Furthermore, a tension spring (25) is provided between the mounting cylinder (24) and the rotating disk (21). One end of the tension spring (25) is connected to the rotating disk (21), and the other end is connected to the mounting cylinder (24). The rotating disk (21) is provided with teeth (215), and a plurality of teeth (215) are provided at intervals on the outer side of the rotating disk (21). The wrench housing (1) is provided with a driving gear (26) and a driven gear (261). The driven gear (261) meshes with the teeth (215) on the rotating disk (21), and the driving gear (26) meshes with the driven gear (261). In addition, the wrench housing (1) is provided with a drive motor (262), and the output shaft of the drive motor (262) is connected to the driving gear (26).

2. The multi-purpose lithium-ion battery wrench according to claim 1, characterized in that: A first push block (27) is slidably installed inside the wrench housing (1). A pressure rod (273) is provided on the first push block (27). One end of the pressure rod (273) is connected to the first push block (27), and the other end extends towards the side closer to the rotating disk (21). A push plate (28) is provided inside the wrench housing (1). A push rod (281) is provided on one side of the push plate (28). One end of the push rod (281) is connected to the push plate (28), and the other end extends towards the side closer to the first push block (27). A second push block (29) is provided on the side of the push rod (281) closer to the first push block (27). A first guide slope (271) is formed on the first push block (27), and a second guide slope (291) is formed on the second push block (29). The first guide slope (271) and the second guide slope (291) are arranged in parallel intervals.

3. A multi-purpose lithium-ion battery wrench according to claim 2, characterized in that: The propulsion assembly (3) includes a first base (31) which is installed inside the wrench housing (1). A second base (32) is provided on one side of the first base (31). A slide plate (36) is slidably provided inside the second base (32). The slide plate (36) is slidably installed inside the second base (32). In addition, a connecting rod (363) is provided on the side of the slide plate (36) away from the first base (31). One end of the connecting rod (363) is connected to the slide plate (36), and the other end is provided with a top plate (362). The top plate (362) is connected to the push plate (28).

4. A multi-purpose lithium-ion battery wrench according to claim 3, characterized in that: A top membrane (33) is provided between the first base (31) and the second base (32). A bend (331) is formed on the top membrane (33). The top membrane (33) bends towards the side closer to the first base (31) through the bend (331). An air cavity (34) is formed between the top membrane (33) and the first base (31). An air passage (35) is formed on the first base (31), and the air passage (35) communicates with the air cavity (34).

5. A multi-purpose lithium-ion battery wrench according to claim 1, characterized in that: The wrench housing (1) has a guide groove on the side near the operating port (11). Several guide grooves are spaced around the operating port (11). The clamping assembly (4) includes a tool holder (41). The tool holder (41) corresponds to the guide groove and slides with the guide groove. In addition, a chuck (43) is provided on the tool holder (41) and is mounted on the tool holder (41).

6. A multi-purpose lithium-ion battery wrench according to claim 5, characterized in that: A drive disc (44) is provided on the side of the wrench housing (1) near the operating port (11). The drive disc (44) is rotatably mounted on the wrench housing (1), and the tool holder (41) is connected to the drive disc (44). In addition, the clamping assembly (4) also includes a first rotating gear (45) and a second rotating gear (452). The first rotating gear (45) is mounted on the drive disc (44). A rotating motor (451) is provided on the wrench housing (1). The second rotating gear (452) is mounted on the output shaft of the rotating motor (451). In addition, a rotating belt (453) is provided between the first rotating gear (45) and the second rotating gear (452). The rotating belt (453) is sleeved on the first rotating gear (45) and the second rotating gear (452).

7. A multi-purpose lithium-ion battery wrench according to claim 1, characterized in that: The wrench housing (1) is provided with heat dissipation holes (16), and a plurality of heat dissipation holes (16) are provided at intervals on the wrench housing (1).

8. A multi-purpose lithium-ion battery wrench according to claim 1, characterized in that: The wrench housing (1) is provided with a mounting plate (12), and the mounting plate (12) is provided with a mounting block (13). The mounting block (13) has a through hole (131) that passes through both sides of the mounting block (13).

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