CN110394756A - Disassembling tool - Google Patents

Abstract

An embodiment of the present application provides a disassembly tool, which relates to the field of machinery, to solve the problem that the driving rod of the automatic wrench is exposed outside, which poses a safety hazard. The dismounting tool may include: a body with a driving device inside; a driving rod, one end of the driving rod is connected to a connecting joint, and the driving rod is driven by the driving device, wherein the connecting joint is used for connecting with Wrench bit connection; telescopic sleeve, the telescopic sleeve is sleeved on the outside of the drive rod, the telescopic sleeve slides relative to the body, and the telescopic sleeve slides along the axial direction of the drive rod. The invention is used for the disassembly and assembly of threaded connectors.

Description

a disassembly tool

technical field

The invention relates to the mechanical field, in particular to a disassembly tool.

Background technique

Automatic wrench is a relatively common threaded connection (such as bolts, nuts, screws, etc.) disassembly tool. Taking the threaded connection as a bolt as an example, when using an automatic wrench, it is generally necessary to match the head of the bolt with the wrench bit first, and then start the automatic wrench. When the automatic wrench rotates, it can be driven by the driving device in the automatic wrench. The rod rotates, thereby driving the wrench bit connected with the driving rod to rotate to remove or tighten the bolt.

In the related art, the driving rod of the automatic wrench is generally exposed outside, and the rotating speed of the driving rod is relatively fast when the automatic wrench works normally. This leaves the user of the automatic wrench vulnerable to injury if they accidentally touch the drive rod. Especially when the user of the automatic wrench wears gloves to work, the burrs and the like on the driving rod are easy to catch the gloves, which easily causes the user's fingers to be injured.

Contents of the invention

The embodiment of the present application provides a disassembly tool to solve the problem that the driving rod of the automatic wrench is exposed outside, which poses a safety hazard.

An embodiment of the present application provides a disassembly and assembly tool, and the disassembly and assembly tool includes:

a main body, a driving device is arranged inside the main body;

A driving rod, one end of the driving rod is connected to a connecting joint, and the driving rod is driven by the driving device, wherein the connecting joint is used to connect with a wrench bit;

A telescopic sleeve, the telescopic sleeve is sleeved on the outside of the driving rod, the telescopic sleeve slides relative to the body, and the telescopic sleeve slides along the axial direction of the driving rod.

Optionally, the driving rod is provided with a first threaded part, the telescopic sleeve is provided with a second threaded part, and the first threaded part cooperates with the second threaded part.

Optionally, the threads of the first threaded part and the second threaded part are both right-handed threads.

Optionally, an elastic element is connected between the telescopic sleeve and the body, and the elastic element exerts an elastic force on the telescopic sleeve along a preset direction.

Optionally, the telescopic sleeve is magnetic.

Optionally, a support sleeve is connected to the body, and the telescopic sleeve is sleeved in the support sleeve and slidably connected with the support sleeve.

Optionally, a chute is provided on the support sleeve, a slider is connected to the telescopic sleeve, and the slider is slidably connected to the chute.

Optionally, a guide rod is connected to the body, a guide hole is opened on the telescopic sleeve, and the guide rod is slidably connected to the guide hole.

Optionally, the telescopic sleeve is provided with a first stopper, and the support sleeve is provided with a second stopper, when the telescopic sleeve slides to a preset position, the first stopper and the contact with the second stop.

Optionally, the assembly and disassembly tool further includes a forward and reverse switching switch, and the forward and reverse switching switch is used to control the rotation direction of the driving rod.

The above at least one technical solution adopted in the embodiment of the present application can achieve the following beneficial effects:

In the embodiment of the present application, a telescopic sleeve may be provided on the outside of the driving rod, and the telescopic sleeve can slide along the axial direction of the driving rod. In this way, when the dismounting tool is working, the end surface of the telescopic sleeve can be kept at a preset distance from the surface of the part to be disassembled, and the telescopic sleeve can be used to cover the driving rod. Therefore, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the driving rod being exposed outside can be eliminated.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or related technologies. Obviously, the accompanying drawings in the following description are only For some embodiments described in the application, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the structural schematic diagram of the first dismounting tool provided by the embodiment of the present application;

Fig. 2 is the top view of the dismounting tool shown in Fig. 1;

FIG. 3 is a schematic structural view of a second dismounting tool provided in the embodiment of the present application;

Fig. 4 is a top view of the dismounting tool shown in Fig. 3;

Fig. 5 is a schematic diagram of screwing out the threaded connector by the dismounting tool shown in Fig. 1;

Fig. 6 is a schematic structural diagram of a third dismounting tool provided by the embodiment of the present application.

Description of reference signs: 11-body, 12-start switch, 13-forward and reverse switch, 14-drive rod, 141-connection joint, 142-threaded body, 15-telescopic sleeve, 151-slider, 152- Bump, 153-guide hole, 154-second threaded part, 16-support sleeve, 161-guide rod, 162-limit slot, 17-elastic element, 21-wrench bit, 22-bolt, 23-first Connecting plate, 24—the second connecting plate.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

Please refer to Figures 1-6, the disassembly tool provided by the embodiment of the present application may include:

The main body 11 may be provided with a drive device (not shown) inside the main body 11 . Optionally, the driving device may be an electric motor, the driving device may also be an air motor, and the driving device may also be a hydraulic motor or the like.

When the drive device is an electric motor, the assembly and disassembly tool may include a power cord connected to the motor, and when the power cord is connected to an external power source, it can provide energy for the motor. When the driving device can also be an air motor, the dismounting tool can include an air inlet connected to the air motor, and when the air inlet is connected with pressurized gas, the air motor can be driven to work. When the driving device is a hydraulic motor, the dismounting tool may include a pressure medium inlet, and when a pressure liquid medium is connected to the pressure medium inlet, the hydraulic motor can be driven to work. Certainly, when the driving device is a hydraulic motor, the dismounting tool may include a hydraulic pump, and the hydraulic pump may be used to drive the hydraulic motor to work.

A driving rod 14 , one end of the driving rod 14 is connected to a connecting joint 141 , and the driving rod 14 is driven by the driving device, wherein the connecting joint 141 is used to connect with the wrench bit 21 . In the embodiment of the present application, the driving rod 14 and the connection joint 141 may be in an integral structure. Certainly, the driving rod 14 and the connecting joint 141 may also be in a separate structure, and the connecting joint 141 may be fixed on the driving rod 14 through a conventional fixed connection method.

Taking the driving device as an example of an electric motor, the connection relationship between the driving rod and the driving device will be described. Taking a conventional motor as an example, the conventional motor may have an output shaft, and the output shaft may be used as a driving rod. Of course, the driving rod can also be a rod fixedly connected to the motor, so that the motor can also be used to drive the driving rod to rotate. When the driving device is other driving devices, the driving rod can also be set with reference to the connection mode between the driving rod and the motor when the driving device is a motor. Not one by one explained here.

It should be noted that the wrench bit is similar to a standard part and can be individually configured by the user according to requirements. Therefore, the assembly and disassembly tool provided by the embodiment of the present application may not include a wrench bit, and when the user needs to use the assembly and disassembly tool provided by the embodiment of the application, he can select a suitable wrench bit to connect to the connection joint according to the requirement.

It should also be noted that the wrench bits can be divided into straight, cross, rice, star, square, hexagonal, Y-shaped heads and so on according to different head shapes. For example, the wrench bit used for disassembling and assembling the hexagonal socket head cap screw may be a structural member with a hexagonal end. The wrench bit used for disassembling and assembling common hexagonal screws can be a structural part with an inner hexagonal end. I won't list them one by one here.

A telescopic sleeve 15 , the telescopic sleeve 15 can be sleeved on the outside of the driving rod 14 . The telescopic sleeve 15 can be slidably connected with the body 11, and the telescopic sleeve 15 can slide along the axial direction of the drive rod 14. Set the distance. Taking FIG. 1 as an example, in the view shown in FIG. 1 , the telescopic sleeve 15 can slide left and right.

In this way, using the solution provided in the embodiment of the present application, when the dismounting tool is working, the end face of the telescopic sleeve can be kept at a preset distance from the surface of the part to be disassembled, and the telescopic sleeve can be used to cover the drive pole. Therefore, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the driving rod being exposed outside can be eliminated.

Optionally, referring to FIG. 1 , on the basis of the above-mentioned dismounting tool provided in the embodiment of the present application, a support sleeve 16 may be provided on the body 11 , and the telescopic sleeve 15 is sleeved in the support sleeve 16 , and is slidably connected with the support sleeve 16. In the embodiment of the present application, the supporting sleeve 16 and the main body 11 may be in an integrated structure. Certainly, the support sleeve 16 and the body 11 may be in a separate structure, and the support sleeve 16 may be fixed on the body 11 through a conventional fixed connection method.

It should be noted that the telescopic sleeve 15 can be slidably connected with the body 11. It can mean that the telescopic sleeve 15 is directly slidably connected with the body 11, or it can refer to that the telescopic sleeve 15 is fixed on the body 11. The other components are slidingly connected.

Of course, FIG. 1 only shows a sliding connection between the telescopic sleeve 15 and the support sleeve 16 . In the embodiment of the present application, the telescopic sleeve and the support sleeve may also be slidably connected in other ways. For example, the telescopic sleeve can be sleeved on the outside of the support sleeve.

Optionally, in the embodiments of the present application, a structure for preventing the telescopic sleeve from rotating in the circumferential direction may be provided.

Optionally, referring to Fig. 1 and Fig. 2, the structure for preventing the circumferential rotation of the telescopic sleeve may include a chute 161 provided on the support sleeve 16, and a slider 151 connected with the telescopic sleeve 15, the The sliding block 151 is slidably connected with the sliding groove 161 .

In the embodiment of the present application, the slider 151 may be a screw provided on the telescopic sleeve 15, of course, the slider 151 may also be in other forms. There can be only one slider 151 , of course, there can also be multiple sliders.

It should be noted that, in the embodiment of the present application, the cooperation between the sliding block 151 and the chute 161 can limit the sliding extreme position of the telescopic sleeve 15 and prevent the telescopic sleeve 15 from detaching from the supporting sleeve 16. , falling out of the disassembly tool and not functioning properly.

Optionally, referring to Fig. 3 and Fig. 4, the structure for preventing the circumferential rotation of the telescopic sleeve may include a guide rod 161 connected to the body 11, and a guide hole 153 provided on the telescopic sleeve 15; wherein, the guide rod 161 is disposed in the guide hole 153 , and the guide rod 161 is slidably connected with the guide hole 153 . The number of guide rods 161 can be one or more.

In the embodiment of the present application, the guide rod 161 may be directly connected to the body 11 or indirectly connected to the body 11 . For example, the guide rod 161 can be disposed on the support sleeve 16 , and the support sleeve 16 can be disposed on the body 11 , so that the guide rod 161 can be indirectly disposed on the body 11 .

Optionally, the telescopic sleeve 15 may be provided with a first stopper, and the support sleeve 16 may be provided with a second stopper. When the telescopic sleeve 15 slides to a preset position, the first stopper and the second stopper stop contact. In this way, the telescopic sleeve 15 can be prevented from detaching from the support sleeve 16, thereby falling out of the dismounting tool and failing to work normally.

Referring to FIG. 4 , the first stopper can be a protrusion 152 disposed on the telescopic sleeve 15 , and the second stopper can be a peripheral portion of a limiting groove 162 surrounding the protrusion 152 . In this way, when the telescopic sleeve 15 slides to the limit position, the protrusion 152 can contact with the peripheral part of the limiting groove 162, thereby preventing the telescopic sleeve 15 from moving further. The protrusion 152 may be a screw provided on the telescopic sleeve 15 .

It should be noted that, in the embodiment of the present application, the structure shown in Figure 1 and Figure 2 for preventing the circumferential rotation of the telescopic sleeve can be selected, and the structure for preventing the telescopic sleeve shown in Figure 3 and Figure 4 can also be selected. The structure that the sleeve rotates in the circumferential direction. Certainly, other structures may also be adopted, which are not listed here.

Optionally, referring to FIG. 1 and FIG. 5, in the embodiment of the present application, an elastic element 17 is connected between the telescopic sleeve 15 and the body 11, and the elastic element 17 exerts an elastic force on the telescopic sleeve 15 along a predetermined direction. . The elastic element 17 may be a spring, and the elastic element 17 may also be a damper capable of stretching. Of course, the elastic element 17 can also be other devices with stretchability.

Referring to FIG. 1 and FIG. 5 , the elastic element 17 can exert an elastic force on the telescopic sleeve 15 so that the telescopic sleeve 15 tends to move away from the body 11 . In this embodiment, the assembly and disassembly tool may further include the aforementioned structure for preventing the telescopic sleeve from rotating in the circumferential direction.

Specifically, the disassembly process using the disassembly tool is taken as an example to illustrate the working mode of the disassembly tool. The part to be disassembled includes a first connecting plate 23 and a second connecting plate 24 , and the first connecting plate 23 and the second connecting plate 24 are connected by bolts 22 .

It should be noted that, in the embodiment of the present application, the threaded connection to be disassembled is mainly an external hexagonal bolt, and the process of disassembling the bolt is taken as an example for illustration. It is easy to understand that the disassembly tool provided in the embodiment of the present application can also be used to disassemble and install other forms of threaded connectors. I won't explain them one by one in the future.

When the dismounting tool is used for disassembly, a force can be applied to the body 11 to move the body toward the piece to be disassembled. Therefore, the telescopic sleeve 15 can be subjected to the reaction force of the first connecting plate 23 , so that the telescopic sleeve 15 can be retracted into the support sleeve 16 . The wrench bit 21 can be matched with the head of the bolt 22, and then the forward and reverse switching switch 13 for controlling the rotation direction of the driving rod 14 is adjusted to a suitable gear, and the start switch 12 is triggered to make the driving device work. The driving device drives the driving rod 14 to rotate. Thereby, the wrench bit 21 is driven to rotate, and the bolt 22 is screwed out by using the wrench bit 21 .

In the embodiment of the present application, the start switch can control the start and stop of the driving device. For example, when the start switch is pressed, the driving device acts, thereby driving the driving rod to rotate. The forward and reverse switch can control the rotation direction of the output end of the driving device. For example, the forward and reverse switch can have R gear and L gear. When the forward and reverse switch is adjusted to the R gear, the output end of the driving device rotates forward, driving the drive rod to rotate forward; when the forward and reverse switch is adjusted When the L gear is reached, the output end of the driving device reverses, driving the drive rod to reverse. I won't repeat them one by one in the future. Wherein, the starting switch and the forward/reverse switching switch can be push-button switches or knob switches, and of course, switches of other forms can also be used.

It should be noted that, in the embodiment of the present application, peepholes (not shown) may be opened on the telescopic sleeve 15 and the support sleeve 16 , so as to facilitate matching between the wrench bit 21 and the head of the bolt 22 .

Referring to FIG. 5 , during the process of the bolt 22 being unscrewed, the dismounting tool moves away from the part to be disassembled. The telescopic sleeve 15 stretches out from the support sleeve 16 under the action of the elastic force provided by the elastic element 17, and the end face of the telescopic sleeve 15 is close to the surface of the first connecting plate 23 in the parts to be disassembled, and the telescopic sleeve can cover Hold the drive lever. In this way, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the exposed driving rod outside can be eliminated.

In addition, by adopting the solution provided by the embodiment of the present application, when the threaded connection parts such as bolts fall out of the wrench bit, they can fall into the telescopic sleeve. In this way, the problem of wastage of threaded connectors caused by dropped threaded connectors can be avoided.

Optionally, in another embodiment of the present application, the telescopic sleeve may be magnetic. When the parts to be disassembled are materials such as iron that can generate attraction with magnetic substances, the end face of the telescopic sleeve and the parts to be disassembled can be directly connected to each other by the attractive force generated between the magnetic telescopic sleeve and the parts to be disassembled. The surface fit also enables the telescoping sleeve to cover the drive rod. Therefore, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the driving rod being exposed outside can be eliminated. In this embodiment, the assembly and disassembly tool may further include the aforementioned structure for preventing the telescopic sleeve from rotating in the circumferential direction.

It should be noted that, in the embodiment of the present application, peepholes (not shown) may be opened on the telescopic sleeve 15 and the support sleeve 16 , so as to facilitate matching between the wrench bit 21 and the head of the bolt 22 .

Optionally, referring to FIG. 6, in another embodiment of the present application, a threaded body 142 may be provided on the driving rod 14, and a first threaded portion may be provided on the outer circumferential surface of the threaded body 142. The telescopic sleeve A second threaded portion 154 may be provided inside the 15 , and the first threaded portion cooperates with the second threaded portion 154 .

In this embodiment, the assembly and disassembly tool may further include the aforementioned structure for preventing the telescopic sleeve from rotating in the circumferential direction.

Specifically, the disassembly process using the disassembly tool is taken as an example to illustrate the working method of the disassembly tool. The part to be disassembled includes a first connecting plate 23 and a second connecting plate 24 , and the first connecting plate 23 and the second connecting plate 24 are connected by bolts 22 .

In the embodiment of the present application, the pitch of the first threaded portion and the second threaded portion 154 may be the same as that of the bolt 22 , and the pitch of the first threaded portion and the second threaded portion 154 may be the same as the thread direction of the bolt 22 . Assuming that the thread pitch of the bolt 22 is 1.5 mm, the thread pitch of the first threaded portion and the second threaded portion 154 may also be 1.5 mm. Conventional threads are generally right-handed, and the first threaded portion and the second threaded portion 154 may also be right-handed threads.

When using the dismounting tool for disassembly, the wrench bit 21 can be matched with the head of the bolt 22, and then the forward and reverse switch 13 for controlling the rotation direction of the drive rod 14 can be adjusted to a suitable gear to trigger Start the switch 12 to make the driving device work, and the driving device drives the driving rod 14 to rotate. Thereby, the wrench bit 21 is driven to rotate, and the bolt 22 is screwed out by using the wrench bit 21 .

When the bolt 22 is unscrewed, the bolt 22 pushes the wrench bit 21 to move away from the piece to be disassembled, so that the support sleeve 16 also moves away from the piece to be disassembled. The driving rod 14 can drive the first threaded part to rotate, and the first threaded part can move relative to the second threaded part 154 . The telescopic sleeve 15 provided with the second threaded portion 154 protrudes from the support sleeve 16 under the action of the structure for preventing the telescopic sleeve from rotating in the circumferential direction. Since the pitch of the first threaded portion and the second threaded portion 154 is equal to the pitch of the bolt 22 , the moving speed of the bolt during the unscrewing process of the bolt 22 is consistent with the extending speed of the telescopic sleeve 15 .

In this way, when the bolt 22 is screwed out or screwed in, the distance between the end surface of the telescopic sleeve 15 and the surface of the first connecting plate 23 in the part to be disassembled can be kept consistent. Thereby, when the wrench bit 21 is matched with the head of the bolt 22, the distance between the end surface of the telescopic sleeve 15 and the surface of the first connecting plate 23 can be adjusted to a preset distance, then in the process of dismounting, it can make The distance between the end surface of the telescopic sleeve 15 and the surface of the first connecting plate 23 always maintains the preset distance. In this way, the drive rod can be covered with a telescopic sleeve. Therefore, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the driving rod being exposed outside can be eliminated.

It should be noted that, in the embodiment of the present application, peepholes (not shown) may be opened on the telescopic sleeve 15 and the support sleeve 16 , so as to facilitate matching between the wrench bit 21 and the head of the bolt 22 .

It should also be noted that during the production process, an assembly line station generally disassembles and assembles a threaded connector of a specification, then the station can be equipped with a set of disassembly tools that match the pitch of the threaded connector, which can make the telescopic The end face of the sleeve maintains a predetermined distance from the surface of the part to be disassembled.

Optionally, in other embodiments of the present application, the telescopic sleeve may be driven by a specific driving device. The dismounting tool may also include a distance sensor for detecting the distance between the end surface of the telescopic sleeve and the surface of the part to be disassembled. The dismounting tool may also include a controller, which is used to control the specific driving device based on the distance parameter detected by the distance sensor between the end face of the telescopic sleeve and the surface of the piece to be disassembled, so that the telescopic The end face of the sleeve maintains a predetermined distance from the surface of the part to be disassembled.

It should be noted that, in the embodiment of the present application, peepholes (not shown) may be opened on the telescopic sleeve 15 and the support sleeve 16 , so as to facilitate matching between the wrench bit 21 and the head of the bolt 22 .

In this way, using the solution provided in the embodiment of the present application, when the dismounting tool is working, the end face of the telescopic sleeve can be kept at a preset distance from the surface of the part to be disassembled, and the telescopic sleeve can be used to cover the drive pole. Therefore, the user of the automatic wrench can be prevented from touching the driving rod, and the potential safety hazard caused by the driving rod being exposed outside can be eliminated.

In addition, using the assembly and disassembly tools provided in the various embodiments provided in the embodiments of the present application, when the threaded connection parts such as bolts fall out of the wrench bit, they can fall into the telescopic sleeve. In this way, the problem of wastage of threaded connectors caused by dropped threaded connectors can be avoided.

It should be noted that in this article, 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 that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the embodiments of the present application , alternatives and modifications, the scope of the embodiments of the present application is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of dismantling device, which is characterized in that the dismantling device includes:

Ontology is internally provided with driving device；

One end of drive rod, the drive rod is connect with jointing, and the drive rod is driven by the driving device, wherein The jointing with spanner screwdriver bit for connecting；

Extension sleeve, the extension sleeve are set in the outside of the drive rod, and the relatively described ontology of the extension sleeve slides, The extension sleeve slides axially along the drive rod.

2. dismantling device according to claim 1, which is characterized in that

The first threaded portion is provided on the drive rod,

The second threaded portion is provided in the extension sleeve,

First threaded portion and second threaded portion cooperate.

3. dismantling device according to claim 2, which is characterized in that

The screw thread of first threaded portion and second threaded portion is right-handed thread.

4. dismantling device according to claim 1, which is characterized in that

Connection has elastic component between the extension sleeve and the ontology,

The elastic element is applied with elastic force to the extension sleeve along preset direction.

5. dismantling device according to claim 1, which is characterized in that the extension sleeve has magnetism.

6. dismantling device according to any one of claims 1-5, which is characterized in that

Support sleeve is connected on the ontology, the extension sleeve is set in the support sleeve, and is slided with the support sleeve Connection.

7. dismantling device according to claim 6, which is characterized in that

Sliding slot is offered on the support sleeve,

It is connected with sliding block on the extension sleeve,

The sliding block is slidably connected with the sliding slot.

8. dismantling device according to claim 6, which is characterized in that

It is connected with guide rod on the ontology,

Guide hole is offered on the extension sleeve,

The guide rod is slidably connected with the guide hole.

9. dismantling device according to claim 8, which is characterized in that

The first block is provided on the extension sleeve,

The second block is provided on the support sleeve,

When the extension sleeve slides into predeterminated position, first block is contacted with second block.

10. dismantling device according to claim 1, which is characterized in that the dismantling device further includes that positive and negative rotation switching is opened It closes, the positive and negative rotation switching switchs the direction of rotation for controlling the drive rod.