CN113843736A

CN113843736A - Screw installation device

Info

Publication number: CN113843736A
Application number: CN202111283068.1A
Authority: CN
Inventors: 任富佳; 王中誉; 化先霞; 罗成; 梁东升; 郑江明
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2021-12-28

Abstract

The invention relates to the technical field of equipment installation, in particular to a screw installation device. The screw mounting device provided by the invention comprises a support clamping mechanism and a screwdriver, wherein the clamping mechanism is mounted on the support, the clamping mechanism is provided with a fixing hole for fixing a screw to be mounted, the screwdriver is also mounted on the support, the screwdriver head is abutted against the screw to be mounted, the screw to be mounted can be mounted in a threaded hole by screwing the screwdriver, the screw to be mounted penetrates deeply along the axial direction of the fixing hole, penetrates through the fixing hole and is finally separated from the whole clamping mechanism, and the problem that the screw which cannot be magnetically adsorbed is difficult to mount in a narrow space by hands is solved.

Description

Screw installation device

Technical Field

The invention relates to the technical field of equipment installation, in particular to a screw installation device.

Background

Technical staff often can operate in narrow and small space in the equipment assembling process, and prior art generally has magnetism through the tool bit of screwdriver, adsorbs the screw on the tool bit of screwdriver through magnetic force, and then inserts the screw in the screw hole in the narrow and small space. However, stainless steel screws, aluminum alloy screws, plastic screws, etc. cannot be magnetically attracted, and when the screw driver is used in a narrow space, a technician needs to hold the screw to fasten the screw by the screwdriver, and the space is too narrow, so that the operation is very difficult. Further, even when the screw is operated in a narrow space by attracting the screw with the magnet, the magnetic force of the magnet is limited, and the magnetic force is weakened as the use time increases, thereby affecting the mounting of the screw.

Disclosure of Invention

The invention aims to solve the following problems: the problem that the screw which can not be magnetically adsorbed is difficult to install in a narrow space.

(II) technical scheme

In order to solve the above technical problem, an embodiment of an aspect of the present invention provides a screw mounting device, including: the screwdriver fixing device comprises a support, a clamping mechanism and a screwdriver, wherein the clamping mechanism and the screwdriver are installed on the support, a fixing hole is formed in the clamping mechanism and used for fixing a screw to be installed, the end of the screwdriver is abutted to the screw to be installed, and the screwdriver can drive the screw to penetrate through the fixing hole.

According to an embodiment of the invention, the clamping mechanism comprises a first clamping piece and a second clamping piece, fixing grooves are respectively arranged on the side walls of the first clamping piece and the second clamping piece, the two fixing grooves are connected to form the fixing holes, the first clamping piece and the second clamping piece are connected with the bracket, the first clamping piece and/or the second clamping piece move back and forth to open the fixing holes, or the first clamping piece and/or the second clamping piece move towards each other to close the fixing holes.

According to one embodiment of the invention, the first and second clamping members are rotatably connected to the bracket.

According to an embodiment of the present invention, the clamping mechanism further includes a first elastic member, the first clamping member and the second clamping member are respectively provided with a mounting pillar, two ends of the first elastic member are respectively connected to the two mounting pillars, and the first elastic member is configured to apply an elastic force for attaching the first clamping member and the second clamping member to each other.

According to one embodiment of the present invention, the cross-sectional area of the fixing hole near the end of the screwdriver is larger than the cross-sectional area of the fixing hole far from the end of the screwdriver, and the cross-sectional area of the fixing hole far from the end of the screwdriver needs to be larger than the cross-sectional area of the screw and the nut to be installed.

According to an embodiment of the present invention, the axial cross section of the fixing hole is a circular truncated cone shape, or the axial cross section of the fixing hole includes a first axial cross section and a first axial cross section, the first axial cross section is a circular truncated cone shape, and the second axial cross section is a square shape.

According to an embodiment of the invention, the clamping mechanism further comprises a rotating shaft, the first clamping piece is further provided with a first shaft hole, the second clamping piece is further provided with a second shaft hole, the bracket is further provided with a third shaft hole and a fourth shaft hole, the first clamping piece is mounted on the bracket in a matched manner with the rotating shaft through the first shaft hole and the second shaft hole, and the second clamping piece is mounted on the bracket in a matched manner with the rotating shaft through the second shaft hole and the fourth shaft hole.

According to one embodiment of the invention, the support is further provided with a supporting mechanism and a mounting ring for fixing the screwdriver, the screwdriver comprises a screwdriver handle, a screwdriver rod and a screwdriver head, one end of the screwdriver rod is connected with the screwdriver head, the other end of the screwdriver rod is connected with the screwdriver handle, the screwdriver rod is mounted on the supporting mechanism, and the screwdriver handle is mounted on the mounting ring.

According to one embodiment of the invention, the supporting mechanism is provided with a positioning hole, and the cutter bar is installed on the supporting mechanism through the positioning hole.

According to an embodiment of the invention, the bracket is further provided with a limiting groove, the first clamping piece and the second clamping piece are provided with limiting blocks, and the limiting groove is matched with the limiting blocks so as to enable the limiting groove and the positioning hole to be on the same axis when the fixing hole is closed.

According to an embodiment of the present invention, the screw mounting device further comprises a second elastic member, the support mechanism comprises a first support plate and a second support plate, the first supporting plate and the second supporting plate are arranged in parallel, the first supporting plate is close to the clamping mechanism, the second supporting plate is close to the mounting ring, the first supporting plate is provided with a first positioning hole, the second supporting plate is provided with a second positioning hole, the cutter head passes through the first positioning hole and the second positioning hole and is abutted against the screw to be installed, the knife handle is arranged on the mounting ring at the other end of the bracket, the second elastic piece is sleeved on the knife bar, the second elastic piece is abutted with the second supporting plate, the other end of the second elastic piece is abutted with the tool shank, and the second elastic piece is used for applying an elastic force, pointing to the second supporting plate from the first supporting plate, to the screwdriver.

The invention has the beneficial effects that: the invention provides a screw mounting device, comprising: the screwdriver comprises a bracket, a clamping mechanism and a screwdriver; fixture on the support, fixture is last to be equipped with the fixed orifices, the fixed orifices is used for the fixed mounting screw of treating, simultaneously, the screwdriver is also installed on the support, the tool bit of screwdriver with treat the mounting screw butt, revolve wrong the screwdriver mounting screw, the screw is deepened gradually in the screw hole, passes simultaneously the fixed orifices, with fixture separation, after the screw installation is accomplished, with whole device take out can, solved in narrow and small space, when the installation can't pass through magnetic adsorption's screw like stainless steel screw, aluminum alloy screw, plastic screw etc., the problem that the technical staff is difficult to handheld screw operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 provides an assembly view of a screw mounting device according to an embodiment of the present invention;

FIG. 2 is a perspective view of a bracket provided in accordance with an embodiment of the present invention;

FIG. 3 is a perspective view of a first clamping member provided in accordance with an embodiment of the present invention;

FIG. 4 is a perspective view of a second clamping member provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a screw installation provided by an embodiment of the present invention;

fig. 6 is a perspective view of a buckle according to an embodiment of the present invention.

Icon: 1-a scaffold; 12-a first support plate; 121-a first positioning hole; 13-a second support plate; 131-a second positioning hole; 14-a mounting ring; 141-a first body; 142-ring buckle; 143-a second body; 15-a limiting groove; 16-third shaft hole; 17-a fourth shaft hole;

2-a screwdriver; 21-a cutter head; 22-a cutter bar; 23-a knife handle; 24-a second elastic member;

31-a first clamp; 311-a first shaft hole; 32-a second clamp; 321-second shaft hole; 33-a first elastic member; 34-a fixed groove; 341-fixation holes; 331-mounting a support; 343-a limiting block; 35-rotating shaft.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, one embodiment of the present invention provides a screw mounting device including: the device comprises a bracket 1, a clamping mechanism and a screwdriver 2; the clamping mechanism and the screwdriver 2 are installed on the support 1, a fixing hole 341 is formed in the clamping mechanism, the fixing hole 341 is used for fixing a screw to be installed, the end portion of the screwdriver 2 abuts against the screw to be installed, and the screwdriver 2 can drive the screw to penetrate through the fixing hole 341.

In the screw mounting device provided by the embodiment, the clamping mechanism and the screwdriver 2 are both mounted on the bracket 1, the clamping mechanism is provided with a fixing hole 341, the fixing hole 341 is used for clamping a screw to be installed, the support 1 is provided with a supporting mechanism for mounting the screwdriver 2, after the screwdriver 2 is mounted on the supporting mechanism, the tool bit 21 is abutted against the screw to be installed, the screw installation device is aligned to a threaded hole in a narrow space, the screwdriver 2 is screwed, and along with the penetration of the screw to be installed, the fixing hole 341 is gradually expanded so that the screw to be installed entirely passes through the fixing hole 341, and thus, after the screw to be installed is installed, simultaneously the screw separates with fixture, will screw installation device take out can, avoid because the space is narrow and small, handheld screw is difficult to aim at the screw hole and the problem that is difficult to the installation.

As shown in fig. 1, 3 and 4, the clamping mechanism includes a first clamping member 31 and a second clamping member 32, fixing grooves 34 are respectively formed on side walls of the first clamping member 31 and the second clamping member 32, the two fixing grooves 34 are connected to form the fixing hole 341, the first clamping member 31 and the second clamping member 32 are connected to the bracket 1, the first clamping member 31 and/or the second clamping member 32 move back to open the fixing hole 341, or the first clamping member 31 and/or the second clamping member 32 move toward each other to close the fixing hole 341.

According to an embodiment of the present invention, the side walls of the first clamping member 31 and the second clamping member 32 are respectively provided with a groove, and the two side walls provided with the grooves can be attached to each other, after the first clamping member 31 and the second clamping member 32 are attached to each other, the two grooves are connected to form the fixing hole 341, the first clamping member 31 and the second clamping member 32 have multiple movement forms so as to open the fixing hole 341, and when the first clamping member 31 is kept stationary and the second clamping member 32 moves in a direction away from the first clamping member 31, the fixing hole 341 can be opened; when the second clamping member 32 is kept still and the first clamping member 31 moves away from the second clamping member 32, the fixing hole 341 can be opened; when the first and

second clamps

31 and 32 are moved away from each other at the same time, the fixing hole 341 may be opened. Also, the first clamping member 31 and the second clamping member 32 have various forms, and can move the two fixing slots 34 towards each other to close the fixing hole 341, and the movement form is the same as the movement form of the opening of the fixing hole 341, and thus, the description thereof is omitted.

It is understood that, in this embodiment, the fixing hole 341 may also be a non-circumferentially closed hole, and meanwhile, the fixing hole 341 may be opened and closed by providing three or more clamping members, which may all achieve the purpose that the fixing hole 341 fixes the screw to be installed.

As shown in fig. 1, the first clamping member 31 and the second clamping member 32 are rotatably connected to the bracket 1.

According to an embodiment of the present invention, the first clamping member 31 and the second clamping member 32 are preferably rotatably connected to the bracket 1, and the fixing hole 341 is opened or closed by rotating the first clamping member 31 and the second clamping member 32 in a direction approaching to the center of the fixing hole 341 or in a direction away from the center of the fixing hole 341.

It is understood that, in this embodiment, the first clamping member 31 and the second clamping member 32 can be connected with the bracket 1 by other means, such as sliding connection or rolling connection, which can also achieve the purpose of opening or closing the fixing hole 341 according to the present invention.

As shown in fig. 1, the clamping mechanism further includes a first elastic member 33, the first clamping member 31 and the second clamping member 32 are respectively provided with an installation pillar 331, two ends of the first elastic member 33 are respectively connected to the two installation pillars 331, and the first elastic member 33 is used for applying an elastic force to make the first clamping member 31 and the second clamping member 32 fit to each other.

According to an embodiment of the present invention, a first elastic member 33 is disposed between the first clamping member 31 and the second clamping member 32, so that the first clamping member 31 and the second clamping member 32 are in a closed state in an initial state, the first clamping member 31 and the second clamping member 32 are opened, and after a screw is placed in the first clamping member 31 and the second clamping member 32, the spring can provide a pre-tightening force to fix the screw in the fixing hole 341 and prevent the screw from falling off, and after the screw is separated from the clamping mechanism, the first clamping member and the second clamping member 32 are in a closed state, so that the volume can be reduced, and the screw can be conveniently taken out from a narrow space.

As shown in fig. 3 to 5, the cross-sectional area of the fixing hole 341 near the screwdriver 2 is larger than that of the screwdriver 2. The axial cross section of the fixing hole 341 is a circular truncated cone, or the fixing hole 341 includes a first axial cross section and a first axial cross section, the first axial cross section is a circular truncated cone, and the second axial cross section is a square.

According to an embodiment of the present invention, the cross-sectional area of the fixing hole 341 near the end of the tool bit 21 is larger than the cross-sectional area of the end far from the tool bit 21, so as to ensure that the screw can continuously press the fixing hole 341 and push the first clamping member 31 and the second clamping member 32 apart during the installation process. Meanwhile, the axial section of the fixing hole 341 is a circular truncated cone, that is, the fixing hole 341 may be a circular hole, the side wall may be a smooth curved surface, the fixing hole 341 may also be a square hole, and the side wall may be a smooth inclined surface, both of the above two embodiments satisfy that the area of the cross section of the end of the fixing hole 341 close to the screwdriver 2 bit 21 is larger than the area of the cross section of the end of the fixing hole 341 far from the screwdriver 2 bit 21, and the screw may not be jammed when being axially pushed. The embodiment further includes another implementation manner, that is, the fixing hole 341 includes two parts, one part is a circular hole, the cross section of the shaft is in a circular truncated cone shape, the other part is a cylindrical hole, the cylindrical hole can be connected with any end of the circular truncated cone shaped hole, but the diameters of the connecting ends need to be the same, so as to ensure that the screw does not get stuck when axially advancing in the shaft of the fixing hole 341; when the fixing hole 341 is a square hole, the cross section of the connecting end is also the same in the other part, and the generated effect is also the same, which is not described herein again. Preferably, this embodiment is that the fixed orifices include two parts, and partly be round platform shape hole, another part is cylindrical hole, cylindrical hole with the less one end in round platform shape hole is connected.

As shown in fig. 1 and 5, the clamping mechanism further includes a rotating shaft 35, the first clamping member 31 is further provided with a first shaft hole 311, the second clamping member 32 is further provided with a second shaft hole 321, the support 1 is further provided with a third shaft hole 16 and a fourth shaft hole 17, the first clamping member 31 is installed on the support 1 through the first shaft hole 311 and the second shaft hole 321 in cooperation with the rotating shaft 35, and the second clamping member 32 is installed on the support 1 through the second shaft hole 321 and the fourth shaft hole 17 in cooperation with the rotating shaft 35.

According to an embodiment of the present invention, a first shaft hole 311 is formed in the first clamping member 31, a second shaft hole 321 is formed in the second clamping member 32, a third shaft hole 16 and a fourth shaft hole 17 are also formed in the bracket 1, the first clamping member 31 and the second clamping member 32 are fixed on the bracket 1 by a rotating shaft 35 passing through the first shaft hole 311, the third shaft hole 16, the second shaft hole 321 and the fourth shaft hole 17, and a locking mechanism is further provided at both ends of the rotating shaft 35 to fix the first clamping member 31 and the second clamping member 32 on the bracket 1.

It is understood that, in this embodiment, the first clamping member 31 and the second clamping member 32 can be connected with the bracket 1 by other means, such as a rotating shaft 35 directly provided on the bracket 1 or the first clamping member 31 and the second clamping member 32, which can also achieve the purpose of rotating the first clamping member 31 and the second clamping member 32 on the bracket 1.

As shown in fig. 1, 2 and 6, the bracket 1 is further provided with a support plate mounting ring 14 for fixing the screwdriver 2; the screwdriver 2 comprises a screwdriver handle 23, a screwdriver rod 22 and a screwdriver head 21, one end of the screwdriver rod 22 is connected with the screwdriver head 21, the other end of the screwdriver rod 22 is connected with the screwdriver handle 23, the screwdriver rod 22 is installed on the supporting plate, and the screwdriver handle 23 is installed on the installation ring 14.

According to an embodiment of the invention, the support 1 is provided with a mounting ring 14 for mounting the screwdriver 2 and a support mechanism, the tool bar 22 is mounted on the support mechanism to limit the tool bar to move only in the radial direction, the mounting ring 14 can adjust the size of the tool holder 23 according to the size of the tool holder 23 to adapt to screwdrivers 2 of different models, the mounting ring 14 can be an integral annular structure, and can also be provided with two parts, when the mounting ring 14 is the integral annular structure, the mounting ring comprises a second body 143, the tool holder 23 is further provided with a limit ring, the diameter of the limit ring needs to be larger than that of the second body 143, and after the screw is fixed, the whole device can be taken out from a narrow space only by pulling the handle of the screwdriver 2. The second embodiment of the mounting ring 14 includes a first body 141 and a ring fastener 142, the first body 141 is mounted on the bracket 1, the ring fastener 142 is detachably connected to the first body 141, a limiting ring is arranged on the handle 23, the diameter of the limiting ring needs to be larger than that of the mounting ring 14, and after the screw is fixed, the handle of the screwdriver 2 is pulled, so that the whole device can be taken out from a narrow space. In this embodiment, it is preferable that the mounting ring 14 includes a body and a buckle 142.

According to an embodiment of the present invention, as shown in fig. 2, the supporting mechanism is provided with a positioning hole, the tool bar 22 is mounted on the supporting mechanism through the positioning hole, the positioning hole is used for supporting the tool bar 22 and limiting the tool bar 22 to move only in the axial direction, and the positioning hole is coaxial with the fixing hole 341 so that the screw can abut against the tool bar.

As shown in fig. 2 to 5, a limiting groove 15 is further disposed on the bracket 1, a limiting block 343 is disposed on the first clamping member 31 and the second clamping member 32, and the limiting groove 15 is matched with the limiting block 343, so that when the fixing hole 341 is closed, the fixing hole and the positioning hole are on the same axis.

According to an embodiment of the present invention, the limiting grooves 15 are arc-shaped grooves, two limiting grooves 15 are respectively concentric with the third shaft hole 16 and the fourth shaft hole 17, and the limiting grooves 15 are used for limiting the rotation angles of the first clamping member 31 and the second clamping member 32, so that when the first clamping member 31 and the second clamping member 32 are in a closed state, the positioning holes are coaxial with the limiting holes, and the angle of the clamping mechanism is not required to be adjusted before installing the screw.

As shown in fig. 1 and 2, the screw mounting device further includes a second elastic member 24, the support mechanism includes a first support plate 12 and a second support plate 13, the first support plate 12 and the second support plate 13 are arranged in parallel, the first support plate is close to the clamping mechanism 12, the second support plate 13 is close to the mounting ring 14, the first support plate 12 is provided with a first positioning hole 121, the second support plate 13 is provided with a second positioning hole 131, the tool bit 21 passes through the first positioning hole 121 and the second positioning hole 131 to abut against the screw to be mounted, the tool shank 23 is mounted on the mounting ring 14 at the other end of the support 1, the second elastic member 24 is sleeved on the tool shank 22, the second elastic member 24 abuts against the second support plate 13, the other end abuts against the tool shank 23, the second elastic member 24 is used for applying a force to the screwdriver 2, the force of the first support plate 12 is directed to the second support plate 13 And (4) elasticity.

According to an embodiment of the present invention, the first support plate 12 and the second support plate 13 are coaxially provided with a first positioning hole 121 and a second positioning hole 131, the tool bar 22 is assembled in the first positioning hole 121 and the second positioning hole 131 to ensure the axial movement thereof, meanwhile, a second elastic member 24 is sleeved on the tool bar 22, two ends of the second elastic member 24 are respectively abutted to the second mounting plate and the tool shank 23, and simultaneously, an elastic force away from the clamping mechanism is applied to the screwdriver 2, and after the screw is installed, the second elastic member 24 performs an elastic resetting function on the screwdriver 2, so as to achieve the extension and retraction of the screwdriver 2 in the axial direction.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A screw mounting device, comprising: the device comprises a bracket (1), a clamping mechanism and a screwdriver (2);

the clamping mechanism and the screwdriver (2) are installed on the support (1), a fixing hole (341) is formed in the clamping mechanism, the fixing hole (341) is used for fixing a screw to be installed, the end portion of the screwdriver (2) is abutted to the screw to be installed, and the screwdriver (2) can drive the screw to penetrate through the fixing hole (341).

2. The screw mounting device according to claim 1, wherein the clamping mechanism comprises a first clamping piece (31) and a second clamping piece (32), fixing grooves (34) are respectively formed in the side walls of the first clamping piece (31) and the second clamping piece (32), and the two fixing grooves (34) are connected to form the fixing hole (341);

the first clamping piece (31) and the second clamping piece (32) are connected with the bracket (1), and the first clamping piece (31) and/or the second clamping piece (32) move back and forth to open the fixing hole (341), or the first clamping piece (31) and/or the second clamping piece (32) move towards each other to close the fixing hole (341).

3. Screw mounting device according to claim 2, characterized in that the first clamping member (31) and the second clamping member (32) are rotatably connected with the bracket (1).

4. The screw mounting device according to claim 2, wherein the clamping mechanism further comprises a first elastic member (33), the first clamping member (31) and the second clamping member (32) are respectively provided with a mounting pillar (331), and two ends of the first elastic member (33) are respectively connected with the two mounting pillars (331);

the first elastic piece (33) is used for applying elastic force for enabling the first clamping piece (31) and the second clamping piece (32) to be attached to each other.

5. Screw mounting arrangement according to claim 2, characterised in that the cross-sectional area of the fixing hole (341) at the end close to the screwdriver (2) is larger than the cross-sectional area at the end remote from the screwdriver (2), and that the cross-sectional area at the end remote from the screwdriver (2) is larger than the cross-sectional area of the largest cross-section of the screw to be mounted.

6. Screw mounting arrangement according to claim 5, characterised in that the axial cross section of the fixing hole (341) is truncated cone-shaped, or,

the shaft section of the fixing hole (341) comprises a first shaft section and a second shaft section, the first shaft section is in a circular truncated cone shape, and the second shaft section is in a square shape.

7. The screw mounting device according to claim 3, wherein the clamping mechanism further comprises a rotating shaft (35), the first clamping member (31) is further provided with a first shaft hole (311), and the second clamping member (32) is further provided with a second shaft hole (321);

still be equipped with third shaft hole (16) and fourth shaft hole (17) on support (1), first holder (31) are passed through first shaft hole (311) with second shaft hole (321) with pivot (35) cooperation is installed on support (1), second holder (32) are passed through second shaft hole (321) with fourth shaft hole (17) with pivot (35) cooperation is installed on support (1).

8. Screw mounting arrangement according to claim 7, characterized in that the holder (1) is further provided with a support means and a mounting ring (14) for fixing the screwdriver (2);

the screwdriver (2) comprises a screwdriver handle (23), a screwdriver rod (22) and a screwdriver head (21), wherein one end of the screwdriver rod (22) is connected with the screwdriver head (21), and the other end of the screwdriver rod (22) is connected with the screwdriver handle (23);

the cutter bar (22) is installed on the supporting mechanism, and the cutter handle (23) is installed on the installation ring (14).

9. The screw mounting device of claim 8, wherein the support mechanism is provided with a positioning hole;

the cutter bar (22) penetrates through the positioning hole and is installed on the supporting mechanism.

10. The screw mounting device according to claim 9, wherein a limiting groove (15) is further formed in the bracket (1), and limiting blocks (343) are arranged on the first clamping piece (31) and the second clamping piece (32);

the limiting groove (15) is matched with the limiting block (343) so that the fixing hole (341) and the positioning hole are on the same axis when being closed.

11. Screw mounting device according to claim 9, characterized in that it further comprises a second elastic member (24);

the supporting mechanism comprises a first supporting plate (12) and a second supporting plate (13), the first supporting plate (12) and the second supporting plate (13) are arranged in parallel, the first supporting plate is close to the clamping mechanism by the clamping mechanism (12), the second supporting plate (13) is close to the mounting ring (14), a first positioning hole (121) is formed in the first supporting plate (12), and a second positioning hole (131) is formed in the second supporting plate (13);

the tool bit (21) penetrates through the first positioning hole (121) and the second positioning hole (131) to be abutted against the screw to be installed, the tool shank (23) is installed on an installation ring (14) at the other end of the support (1), the second elastic piece (24) is sleeved on the tool shank (22), the second elastic piece (24) is abutted against the second support plate (13), and the other end of the second elastic piece is abutted against the tool shank (23);

the second elastic member (24) is used for applying an elastic force to the screwdriver (2) from the first support plate (12) to the second support plate (13).