CN219113941U

CN219113941U - Screw nut dismounting tool

Info

Publication number: CN219113941U
Application number: CN202222535633.5U
Authority: CN
Inventors: 徐承飞; 林李波; 徐斌; 程照辉; 邹积防
Original assignee: Tianrun Industrial Technology Co ltd
Current assignee: Tianrun Industrial Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-06-02
Anticipated expiration: 2032-09-23

Abstract

The utility model provides a screw nut dismounting tool, which relates to the technical field of grinding machine assembly tools, and comprises the following components: the device comprises a sleeve, a mandrel guiding structure, a connecting structure and a torque transmission structure, wherein the mandrel guiding structure is arranged on the sleeve, one end of the mandrel guiding structure is used for being matched and connected with a screw nut, the connecting structure and the torque transmission structure are arranged on the same end face of the sleeve, and the screw nut dismounting tool is connected with the screw nut through the connecting structure. The utility model relieves the technical problems of hidden danger in operation, influence on the assembly precision of the hydrostatic screw and the machining precision of equipment and lower production efficiency in the related technology.

Description

Screw nut dismounting tool

Technical Field

The utility model relates to the technical field of grinding machine assembly tools, in particular to a screw nut assembly and disassembly tool.

Background

The existing equipment is from taking or self-made static pressure lead screw nut assembly and disassembly tools, all do not possess dabber direction and with nut fixed function, have following shortcoming: 1. the tool is easy to fall off from the nut due to overlarge stress in the disassembly and assembly process, so that operators are injured, and the personal safety of the operators cannot be ensured; 2. the hydrostatic screw nut has very strict requirement on the torque, otherwise, the assembly precision of the hydrostatic screw is easy to be damaged, the original dismounting tool cannot strictly ensure the standard torque, the assembly precision of the hydrostatic screw is affected, and the machining precision of equipment is further affected; 3. the existing dismounting tool seriously affects the equipment maintenance and the efficiency of screw replacement by stopping, so that the equipment is excessively long in stopping time, and the production efficiency of a production line is affected.

Disclosure of Invention

The utility model aims to provide a screw nut dismounting tool which is used for relieving the technical problems of hidden danger in operation, influence on the assembly precision of a static pressure screw, the machining precision of equipment and lower production efficiency in the related art.

The utility model provides a screw nut dismounting tool, comprising: the device comprises a sleeve, a mandrel guide structure, a connecting structure and a torque transmission structure, wherein the mandrel guide structure is arranged on the sleeve, one end of the mandrel guide structure is used for being connected with a screw nut in a matched mode, the connecting structure and the torque transmission structure are arranged on the same end face of the sleeve, and the screw nut dismounting tool is connected with the screw nut through the connecting structure.

In an alternative embodiment, preferably, the mandrel guiding structure includes a mandrel, and the mandrel penetrates through the sleeve along the axial direction of the sleeve and is fixedly connected with the sleeve.

In an alternative embodiment, preferably, the mandrel includes a mandrel body and a shaft, the shaft is fixedly connected to one end of the mandrel body, the mandrel body extends from one end of the sleeve where the torque transmission structure is mounted, and the shaft extends from the other end of the sleeve.

In an optional embodiment, more preferably, the connection structure includes a plurality of screws, a plurality of countersunk holes matched with the screws are formed in the sleeve, the countersunk holes penetrate through the sleeve along the axial direction of the sleeve, and the screws penetrate through the countersunk holes in a one-to-one correspondence manner.

In an alternative embodiment, more preferably, a plurality of said countersunk holes are spaced about the axis of said sleeve.

In an alternative embodiment, the screw is preferably a socket head cap screw.

In an optional embodiment, preferably, the screw nut dismounting tool further includes a limiting structure, the limiting structure is disposed inside the sleeve, and the connecting structure is limited to be separated from the sleeve by the limiting structure.

In an optional embodiment, preferably, the limiting structure includes a plurality of limiting sleeves, the limiting sleeves are installed in the counter bores through interference fit, and the plurality of screws penetrate through the plurality of limiting sleeves in a one-to-one correspondence manner.

In an optional embodiment, preferably, the torque transmission structure includes a plurality of cylindrical pins, the sleeve is provided with a plurality of first pin holes adapted to the cylindrical pins, and the plurality of cylindrical pins are inserted into the plurality of first pin holes in a one-to-one correspondence manner.

In an alternative embodiment, more preferably, a plurality of said first pin bores are spaced about the axis of said sleeve.

By adopting the technical scheme, the utility model can realize the following beneficial effects:

the embodiment of the utility model provides a screw nut dismounting tool, which comprises a sleeve, a mandrel guide structure, a connecting structure and a torque transmission structure, wherein the mandrel guide structure is arranged on the sleeve, one end of the mandrel guide structure is connected with a screw nut in a matched manner, the connecting structure and the torque transmission structure are arranged on the same end face of the sleeve, and the screw nut dismounting tool is connected with the screw nut through the connecting structure. The spindle guide structure is arranged in the sleeve, so that a guide effect is achieved on connection of a disassembly tool and the screw nut, the sleeve and the screw nut are matched and installed through the connection structure, the effect of fixing the tool and the screw nut is achieved, the disassembly tool is prevented from being separated from the screw nut, and the spindle guide structure is connected with the screw nut through the torque transmission structure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a screw nut dismounting tool provided by an embodiment of the utility model under a first view angle;

fig. 2 is an exploded view of a screw nut assembly and disassembly tool according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a screw nut dismounting tool provided by the embodiment of the utility model under a second view angle;

fig. 4 is a cross-sectional view of the A-A plane in fig. 3.

Icon: 100-sleeve; 200-mandrel; 201-a mandrel body; 202-a shaft; 300-screw; 400-countersunk holes; 401-large diameter through holes; 402-small diameter through holes; 500-limiting sleeves; 600-cylindrical pins; 700-first pin hole.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The screw nut assembly and disassembly tools that this embodiment provided includes: sleeve 100, dabber guide structure, connection structure and torque transmission structure, dabber guide structure installs in sleeve 100, and dabber guide structure's one end is used for being connected with screw nut cooperation, and connection structure and torque transmission structure install in sleeve 100's same terminal surface, are connected screw nut assembly and disassembly tools and screw nut through connection structure.

The screw nut dismounting tool provided by the embodiment relieves the technical problems that hidden danger exists in operation in the related technology, the assembly precision of the static pressure screw and the machining precision of equipment are affected, and the production efficiency is low.

Specifically, a mandrel guiding structure is arranged in the sleeve 100, so that a guiding effect is achieved on connection of a dismounting tool and a screw nut, the sleeve 100 is matched with the screw nut through the connecting structure, a fixing tool and the screw nut are achieved, the dismounting tool is prevented from being separated from the screw nut, and the screw nut is connected through a torque transmission structure.

Referring to fig. 1, in this embodiment, preferably, the mandrel guiding structure includes a mandrel 200, and the mandrel 200 penetrates through the sleeve 100 along the axial direction of the sleeve 100 and is fixedly connected with the sleeve 100.

Specifically, sleeve 100 cover is located the outer peripheral face of dabber 200 to set up with dabber main part 201 coaxially, dabber 200 passes through welded mode and sleeve 100 fixed connection, and the one end of dabber 200 stretches out from sleeve 100 installation torque transmission structure's one end, and the other end of dabber 200 stretches out from sleeve 100 one end of keeping away from torque transmission structure, and spindle 200 is close to torque transmission structure's one end and connects screw nut, through setting up dabber guide structure, and inside the screw nut was stretched into to dabber guide structure's one end, plays the guide effect to the connection of assembly and disassembly tools with screw nut, and the assembly and disassembly tools of being convenient for and screw nut's connection improves screw nut assembly and disassembly work's efficiency.

Referring to fig. 2, in this embodiment, preferably, the mandrel 200 includes a mandrel body 201 and a shaft 202, the shaft 202 is fixedly connected to one end of the mandrel body 201, the mandrel body 201 extends from one end of the sleeve 100 where the torque transmission structure is mounted, and the shaft 202 extends from the other end of the sleeve 100.

Specifically, an opening is provided at one end of the spindle main body 201, the shaft lever 202 is fixedly connected to one end far away from the opening of the spindle main body 201, the axis of the shaft lever 202 coincides with the axis of the spindle main body 201, the open end of the spindle main body 201 is connected with the screw nut, and the section of the shaft lever 202 is square or hexagonal. The sleeve 100 is fixedly sleeved outside the mandrel main body 201 and is coaxially arranged with the mandrel main body 201, the torque transmission structure is fixedly arranged on the end face of the first end of the sleeve 100, the mandrel main body 201 extends out of the sleeve 100 from the first end of the sleeve 100, and the shaft 202 extends out of the sleeve 100 from the second end of the sleeve 100.

When the screw nut is dismounted, the shaft lever 202 is rotated by using the torque wrench, the mandrel main body 201 connected with the shaft lever 202 is driven to rotate, the sleeve 100 fixedly sleeved outside the mandrel main body 201 is further rotated along with the mandrel 200 coaxially, one end, far away from the shaft lever 202, of the mandrel 200 is connected with the screw nut, the screw nut is driven to rotate by the mandrel 200 and the sleeve 100, so that the screw nut can be dismounted easily, and the mandrel main body 201 and the shaft lever 202 are simple in integral structure, easy to process, convenient to mount and dismount, and capable of improving the working efficiency.

Referring to fig. 2 to 4, in this embodiment, preferably, the connecting structure includes a plurality of screws 300, a plurality of countersunk holes 400 adapted to the screws 300 are provided on the sleeve 100, the countersunk holes 400 penetrate through the sleeve 100 along the axial direction of the sleeve 100, and the plurality of screws 300 penetrate through the countersunk holes 400 in a one-to-one correspondence.

Specifically, the connecting structure is fixedly installed on the end surface of the sleeve 100 on the same side as the torque transmission structure, one end of the screw 300 extends out of the counter bore 400 to be matched with a locking screw hole on the screw nut, a plurality of locking screw holes are uniformly distributed at intervals around the axis of the screw nut, and a plurality of counter bores 400 are uniformly distributed at intervals around the axis of the sleeve 100.

The number of the screw 300 and the counter bore 400 is three, any counter bore 400 comprises a large diameter through hole 401 and a small diameter through hole 402, the large diameter through hole 401 and the small diameter through hole 402 are communicated, the axis of the large diameter through hole 401 is coincident with the axis of the small diameter through hole 402, the central lines of the large diameter through hole 401 and the small diameter through hole 402 are parallel to the axis of the sleeve 100, the radial diameters of the large diameter through hole 401 are the same, the radial diameters of the small diameter through hole 402 are the same, a platform is formed at the joint of the large diameter through hole 401 and the small diameter through hole 402, internal threads are arranged on the inner surfaces of the locking screw hole and the small diameter through hole 402, the outer diameter of the screw 300 is the same as the inner diameter of the small diameter through hole 402, and the screw 300 is mounted on the small diameter through threads.

Specifically, the screw 300 is placed into the countersunk hole 400 from one end of the large-diameter through hole 401 far away from the platform, and is screwed into the small-diameter through hole 402 until the nut of the screw 300 is clamped on the platform, the platform limits the screw portion of the screw 300 to continue to move towards the small-diameter through hole 402, at this time, one end of the screw 300 extends out of the small-diameter through hole 402, one end extending out of the small-diameter through hole 402 is screwed into a locking screw hole on the screw nut through a thread, the whole assembly and disassembly tool is connected with the screw nut, and the screw 300 can be an inner hexagon screw 300.

Set up connection structure on sleeve 100, connection structure includes a plurality of screws 300 that stretch out sleeve 100 one end, the screw 300 stretches out the one end of sleeve 100 and is connected with the locking screw hole cooperation on the screw nut, screw 300 loops through the locking screw hole on the screw nut of major diameter through-hole 401 and minor diameter through-hole 402 screw in, be connected with screw nut with assembly and disassembly tools, install sleeve 100 and screw nut cooperation through connection structure, play the effect of fixing tool and screw nut, prevent assembly and disassembly tools and screw nut separation, improve the fastness that assembly and disassembly tools and screw nut are fixed, improve the reliability of operation when guaranteeing operating personnel's safety.

Referring to fig. 1 and 4, in a further preferred embodiment of the present embodiment, the screw nut dismounting tool further includes a limiting structure, the limiting structure is disposed inside the sleeve 100, the connecting structure is limited to be separated from the sleeve 100 by the limiting structure, the limiting structure is mounted at one end of the large-diameter through hole 401 of the counter bore 400, which is far away from the platform, and is matched with the counter bore 400 by interference fit, so as to prevent the screw 300 from falling out of the counter bore 400, and avoid the screw 300 from being lost.

With continued reference to fig. 1 to 4, in this embodiment, preferably, the limiting structure includes a plurality of limiting sleeves 500, the limiting sleeves 500 are installed in the counterbore 400 through interference fit, and the plurality of screws 300 penetrate the plurality of limiting sleeves 500 in a one-to-one correspondence.

Specifically, the axis of the stop collar 500 coincides with the axis of the large-diameter through hole 401, the axes between any two stop collars 500 are parallel, the stop collar 500 is installed at one end of the large-diameter through hole 401 far away from the small-diameter through hole 402 in an interference fit manner, a stop hole is formed in the stop collar 500, the diameter of the stop hole is smaller than that of a nut, when the disassembly and assembly tool is used, a screw 300 is rotated by using a screwdriver to extend into the large-diameter through hole 401 from one end of the stop hole, the screw 300 sequentially penetrates through the counter bore 400 and a locking screw hole along the axial direction of the counter bore 400, all screws 300 are sequentially installed, the disassembly and assembly tool is firmly connected with the screw nut, and then the shaft lever 202 is rotated by a torque wrench, so that disassembly and assembly work is performed on the screw nut; when the dismounting tool is separated from the screw nut, the screw 300 is rotated reversely by using the screwdriver to extend into the large-diameter through hole 401 from one end of the limit hole, so that the screw 300 is screwed out of the small-diameter through hole 402 of the locking screw hole and the counter bore 400 in sequence until the dismounting tool is completely separated from the screw nut, and the limit sleeve 500 arranged at the large-diameter through hole 401 can prevent the screwed-out screw 300 from falling from the large-diameter through hole 401.

Referring to fig. 1 to 4, in this embodiment, preferably, the torque transmission structure includes a plurality of cylindrical pins 600, the sleeve 100 is provided with a plurality of first pin holes 700 adapted to the cylindrical pins 600, and the plurality of cylindrical pins 600 are inserted into the plurality of first pin holes 700 in a one-to-one correspondence.

Specifically, the axis of the cylindrical pin 600 is parallel to the axis of the sleeve 100, the axes between any two cylindrical pins 600 are parallel, a plurality of second pin holes matched with the first pin holes 700 are formed in the screw nut, the second pin holes are uniformly distributed at intervals around the axis of the screw nut, the axes of the first pin holes 700 and the second pin holes coincide, the number of the first pin holes 700, the number of the second pin holes and the number of the cylindrical pins 600 are six respectively, one end of each cylindrical pin 600 extends out of the first pin holes 700 to be connected with the second pin holes on the screw nut in a matched mode, and the disassembly tools are connected with the screw nut through the cylindrical pins 600.

Set up torque transmission structure on sleeve 100, torque transmission structure includes a plurality of cylindric lock 600 that stretch out sleeve 100 one end, and cylindric lock 600 stretches out sleeve 100's one end and the cooperation of the second pinhole on the screw nut are connected, when using this assembly and disassembly tools, play the effect of transmission moment of torsion, guarantee the standard moment of screw nut installation, improved screw nut's assembly quality.

The dismounting tool provided by the embodiment of the utility model can effectively improve the efficiency of assembling and dismounting operation on the screw nut in a small space in a machine tool, the safety of operation and the control of nut standard torque, thereby reducing equipment downtime and maintenance time, improving the safety of dismounting operation, ensuring the marking torque of static pressure screw nut installation and improving the assembly quality of the screw nut.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A lead screw nut assembly and disassembly tool, comprising: sleeve (100), dabber guide structure, connection structure and torque transmission structure, dabber guide structure install in sleeve (100), dabber guide structure's one end is used for being connected with screw nut cooperation, connection structure with torque transmission structure install in the same terminal surface of sleeve (100), through connection structure will screw nut assembly and disassembly tools is connected with screw nut.

2. The lead screw nut dismounting tool as claimed in claim 1, wherein the spindle guiding structure comprises a spindle (200), and the spindle (200) penetrates through the sleeve (100) along the axial direction of the sleeve (100) and is fixedly connected with the sleeve (100).

3. The lead screw nut dismounting tool as claimed in claim 2, wherein the spindle (200) comprises a spindle body (201) and a shaft lever (202), the shaft lever (202) is fixedly connected to one end of the spindle body (201), the spindle body (201) extends from one end of the sleeve (100) where the torque transmission structure is mounted, and the shaft lever (202) extends from the other end of the sleeve (100).

4. The screw nut dismounting tool as claimed in claim 1, wherein the connecting structure comprises a plurality of screws (300), a plurality of countersunk holes (400) matched with the screws (300) are formed in the sleeve (100), the countersunk holes (400) penetrate through the sleeve (100) along the axial direction of the sleeve (100), and the screws (300) penetrate through the countersunk holes (400) in a one-to-one correspondence manner.

5. The lead screw nut removing tool of claim 4, wherein a plurality of said counter bores (400) are spaced about the axis of said sleeve (100).

6. The lead screw nut removing tool according to claim 4, wherein the screw (300) is an socket head cap screw.

7. The lead screw nut removing tool as claimed in claim 4, further comprising a limit structure provided inside the sleeve (100) by which the connection structure is restricted from coming out of the sleeve (100).

8. The screw nut assembling and disassembling tool according to claim 7, wherein the limit structure comprises a plurality of limit caps (500), the limit caps (500) are mounted in the counter bores (400) through interference fit, and a plurality of the screws (300) penetrate through a plurality of the limit caps (500) in a one-to-one correspondence.

9. The screw nut dismounting tool according to claim 1, wherein the torque transmission structure comprises a plurality of cylindrical pins (600), a plurality of first pin holes (700) matched with the cylindrical pins (600) are formed in the sleeve (100), and the plurality of cylindrical pins (600) are inserted into the plurality of first pin holes (700) in a one-to-one correspondence manner.

10. The lead screw nut removing tool of claim 9, wherein a plurality of said first pin holes (700) are spaced about an axis of said sleeve (100).