Screw tightening device

Abstract

The utility model belongs to the technical field of screw tightening guns, and particularly relates to a screw tightening device which is characterized in that a square rod, a universal joint, an adjusting screw rod and an extension screw rod are arranged, so that the extension screw rod can be rotated to drive a rotating rod to move in a narrow space, and the rotating rod drives a clamping assembly to extend to a proper length; then an adjusting screw rod is rotated, the adjusting screw rod pulls a pull plate to move through threaded connection of the adjusting screw rod and an extension block, so that one end of a universal joint is driven by the pull plate to move to a proper angle, a screw is clamped through a clamping assembly, and the screw conveniently enters a narrow position through movement of a rotating rod; then a driving motor is started to drive a square rod to rotate, the square rod drives a rotating rod and a universal joint to rotate, the universal joint drives a clamping assembly to rotate, then a screw can be conveniently screwed into a mounting position, the device can conveniently drive the screw to enter a narrow position, the direction of the screw is adjusted for mounting, and the universality of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw tightening gun technical field, specifically is a screw tightening device. BACKGROUND

[0002] Screw tightening gun is a kind of tool that can automatically or manually control torque, is used for accurately tightening bolt or screw.It is driven bolt or screw rotation by converting electric energy or gas energy into mechanical energy, to realize fastening effect.

[0003] But the structure of existing screw tightening gun is more fixed, when facing narrow space, it cannot enter due to its large size, so that it is difficult to adjust the angle and position of screwing, install screw, reduce its versatility;Therefore, aiming at the above problems, a screw tightening device is provided. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiency of prior art, solve at least one technical problem proposed in the background art.

[0005] The utility model discloses a screw tightening device, including screw tightening gun body, the inside of screw tightening gun body is provided with driving motor, driving motor output fixedly connected with square bar, square bar outside slidingly connected with the rotation bar, the rotation bar and screw tightening gun body slidingly connected, one end of the rotation bar is fixedly connected with the universal joint, one end of the universal joint is fixedly connected with the clamping assembly, the universal joint outside rotationally connected with the pull plate, the pull plate outside rotationally connected with the movable block, the movable block inside rotationally connected with the adjusting screw rod, the adjusting screw rod outside is connected with the extension block, the extension block and rotation bar rotationally connected, the extension block outside is connected with the extension screw rod, the extension screw rod and screw tightening gun body rotationally connected, this step is provided with square bar, universal joint, adjusting screw rod and extension screw rod, when facing narrow space, extension screw rod can be rotated, the rotation bar is moved by extension screw rod, the clamping assembly is extended to the appropriate length by the rotation bar, then the adjusting screw rod is rotated, the movable block is moved by the threaded connection of adjusting screw rod and movable block, so that the movable block is moved to the appropriate angle by the pull plate, then the screw is clamped by the clamping assembly, the screw is conveniently entered into narrow position by the movement of rotation bar, then driving motor is started to drive square bar rotation, the rotation bar and universal joint are rotated by square bar, the clamping assembly is rotated by the universal joint, and then the screw is screwed into the installation place, so that the device is conveniently entered into narrow position and adjusted the direction of screw and installed, improve the versatility of device.

[0006] Preferably, the screw tightening gun body is slidably connected with a movable rod on the inside, one end of the movable rod is fixedly connected with a spring, one end of the spring is fixedly connected with the screw tightening gun body, the movable rod and the spring are arranged to facilitate further supporting of the device when the rotating rod needs to extend into a narrow space, thereby making the device more stable to use and improving the stability of the device.

[0007] Preferably, the screw tightening gun body is slidably connected with a movable rod on the inside, one end of the movable rod is fixedly connected with a spring, one end of the spring is fixedly connected with the screw tightening gun body, the movable rod and the spring are arranged to facilitate further supporting of the device when the rotating rod needs to extend into a narrow space, thereby making the device more stable to use and improving the stability of the device.

[0008] Preferably, the screw tightening gun body is slidably connected with a movable rod on the inside, one end of the movable rod is fixedly connected with a spring, one end of the spring is fixedly connected with the screw tightening gun body, the movable rod and the spring are arranged to facilitate further supporting of the device when the rotating rod needs to extend into a narrow space, thereby making the device more stable to use and improving the stability of the device.

[0009] Preferably, the screw tightening gun body is slidably connected with a movable rod on the inside, one end of the movable rod is fixedly connected with a spring, one end of the spring is fixedly connected with the screw tightening gun body, the movable rod and the spring are arranged to facilitate further supporting of the device when the rotating rod needs to extend into a narrow space, thereby making the device more stable to use and improving the stability of the device.

[0010] Preferably, the screw tightening gun body is slidably connected with a movable rod on the inside, one end of the movable rod is fixedly connected with a spring, one end of the spring is fixedly connected with the screw tightening gun body, the movable rod and the spring are arranged to facilitate further supporting of the device when the rotating rod needs to extend into a narrow space, thereby making the device more stable to use and improving the stability of the device.

[0011] The screw tightening gun has the advantages that:

[0012] 1. The utility model discloses a square bar, universal joint, adjusting screw rod and extension screw rod are set up, when facing narrow space, can rotate extension screw rod, moves through extension screw rod and drives the rotation bar, makes the rotation bar drive clamping assembly extension to the appropriate length, then rotates adjusting screw rod, through the threaded connection of adjusting screw rod and extension block, makes adjusting screw rod pull and move the pull plate, thereby through the pull plate drive one end of the universal joint to move to the appropriate angle, again clamps through the clamping assembly of screw, through the movement of the rotation bar, makes the screw convenient to enter narrow position, then starts drive motor and drives square bar rotation, through square bar drive rotation bar and universal joint rotation, makes the universal joint drive clamping assembly rotation, and then conveniently screws into the installation place, so that the device is convenient for driving screw into narrow position and adjusting its direction and installing, improve the universality of the device.

[0013] 2. The utility model discloses a movable rod and spring are set up, when the rotation bar needs to extend into narrow space, the device can through one end of movable rod and the outside of narrow space closely, thereby conveniently further support the device, so that the use of the device is more stable, improve the stability of the device. ACCURACY OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not creating laboriously, still can obtain other drawings according to these drawings.

[0015] Figure 1 It is the structure front view in the utility model;

[0016] Figure 2 It is the structure rear view in the utility model;

[0017] Figure 3 It is movable rod structure schematic view in the utility model;

[0018] Figure 4 It is drive motor structure schematic view in the utility model;

[0019] Figure 5 It is movable block structure schematic view in the utility model.

[0020] In the drawing: 1, screw tightening gun body; 2, drive motor; 3, square bar; 4, rotation bar; 5, universal joint; 6, clamping assembly; 7, pull plate; 8, adjusting screw rod; 9, extension block; 10, extension screw rod; 11, movable rod; 12, spring; 13, clamping plate; 14, limiting frame; 15, magnetic plate; 16, metal plate; 17, scale; 701, movable block. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Specific implementation examples are given below.

[0023] Please see Figures 1-5 As shown, a screw tightening device includes a screw tightening gun body 1. A drive motor 2 is disposed inside the screw tightening gun body 1. A square rod 3 is fixedly connected to the output end of the drive motor 2. A rotating rod 4 is slidably connected to the outer side of the square rod 3. The rotating rod 4 and the screw tightening gun body 1 are slidably connected. A universal joint 5 is fixedly connected to one end of the rotating rod 4. A clamping assembly 6 is fixedly connected to one end of the universal joint 5. A pull plate 7 is rotatably connected to the outer side of the universal joint 5. A movable block 701 is rotatably connected to the outer side of the pull plate 7. An adjusting screw 8 is rotatably connected to the inner side of the movable block 701. An extension block 9 is threadedly connected to the outer side of the adjusting screw 8. The extension block 9 and the rotating rod 4 are rotatably connected. An extension screw 10 is threadedly connected to the outer side of the extension block 9. The extension screw 10 and the screw tightening gun body 1 are rotatably connected. This step involves setting the square rod 3, the universal joint 5, and the clamping assembly 6. The universal joint 5, adjusting screw 8, and extension screw 10 are used in confined spaces. Rotating the extension screw 10 moves the rotating rod 4, extending the clamping assembly 6 to a suitable length. Then, rotating the adjusting screw 8, through its threaded connection with the extension block 9, pulls the pull plate 7, which in turn moves one end of the universal joint 5 to a suitable angle. The screw is then clamped by the clamping assembly 6. The movement of the rotating rod 4 facilitates the screw's entry into confined spaces. The drive motor 2 is then activated, rotating the square rod 3. This, in turn, rotates the rotating rod 4 and the universal joint 5, causing the universal joint 5 to rotate the clamping assembly 6, making it easier to screw the screw into the mounting location. This device facilitates screw insertion into confined spaces and allows for adjustment of its orientation during installation, improving its versatility.

[0024] Furthermore, such as Figure 1 and Figure 3As shown in the screw gun body 1 inside the sliding connection with the movable rod 11, one end of the movable rod 11 is fixedly connected with the spring 12, one end of the spring 12 and the screw gun body 1 are fixedly connected, this step through the setting movable rod 11 and spring 12, when the rotating rod 4 needs to extend into the narrow space, the device can be through the movable rod 11 one end close to the outside of the narrow space, so as to facilitate the further support of the device, in order to facilitate the use of the device more stable, improve the stability of the device.

[0025] Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device. Figure 1 Figure 3 Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device.

[0026] Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device. Figure 1 Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device.

[0027] Figure 2 Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device.

[0028] Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device. Figure 2 Further, as shown in the screw gun body 1 outside the sliding connection with the card 13, the card 13 and the movable rod 11 are used in cooperation, this step through the setting card 13, when the device does not need to use the movable rod 11, can press down the card 13, so that the card 13 shields the movable rod 11, so that the card 13 cooperates with the spring 12 to fix the movable rod 11, so that it is not easy to extend, improve the convenience of the device.

[0029] ​​The working principle is that when facing a narrow space, the extension screw rod 10 can be rotated, the rotating rod 4 is moved by the extension screw rod 10, the clamping assembly 6 is extended to a suitable length by the rotating rod 4, then the adjusting screw rod 8 is rotated, the adjusting screw rod 8 moves the pull plate 7 by the threaded connection of the adjusting screw rod 8 and the extension block 9, the movable block 701 is moved by the pull plate 7, one end of the universal joint 5 is moved to a suitable angle by the movable block 701, the screw is clamped by the clamping assembly 6, the screw is convenient to enter the narrow position by the movement of the rotating rod 4, then the driving motor 2 is started to drive the square rod 3 to rotate, the rotating rod 4 and the universal joint 5 are rotated by the square rod 3, the clamping assembly 6 is rotated by the universal joint 5, and then the screw is screwed into the installation position.

[0030] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A screw tightening device comprising a screw tightening gun body (1), characterized in that: The screw tightening gun body (1) inside is provided with a driving motor (2), the output end of the driving motor (2) is fixedly connected with a square bar (3), the square bar (3) outer side is slidably connected with a rotating rod (4), the rotating rod (4) and screw tightening gun body (1) are slidably connected, one end of the rotating rod (4) is fixedly connected with a universal joint (5), one end of the universal joint (5) is fixedly connected with a clamping assembly (6), the universal joint (5) outer side is rotatably connected with a pull plate (7), the pull plate (7) outer side is rotatably connected with a movable block (701), the movable block (701) inner side is rotatably connected with an adjusting screw (8), the adjusting screw (8) outer side is threadedly connected with an extension block (9), the extension block (9) and rotating rod (4) are rotatably connected, the extension block (9) outer side is threadedly connected with an extension screw (10), the extension screw (10) and screw tightening gun body (1) are rotatably connected.

2. A screw tightening device according to claim 1, characterized in that: The screw tightening gun body (1) inside is slidably connected with a movable rod (11), one end of the movable rod (11) is fixedly connected with a spring (12), one end of the spring (12) and screw tightening gun body (1) are fixedly connected.

3. A screw tightening device according to claim 2, wherein: The screw tightening gun body (1) outer side is slidably connected with a clamping plate (13), the clamping plate (13) and movable rod (11) are used in cooperation.

4. A screw tightening device according to claim 3, wherein: The screw tightening gun body (1) outer side is fixedly connected with a limiting frame (14), the limiting frame (14) and universal joint (5) are used in cooperation.

5. A screw tightening device according to claim 4, wherein: The extension block (9) outer side is fixedly connected with a magnetic plate (15), the screw tightening gun body (1) outer side is fixedly connected with a metal plate (16), the magnetic plate (15) and metal plate (16) are used in cooperation.

6. A screw tightening device according to claim 5, wherein: The metal plate (16) upper side is provided with a scale (17), the scale (17) and magnetic plate (15) are used in cooperation.

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