Automatic screw mounting machine

Abstract

The utility model discloses an automatic screw installer, including screw conveyer, screw positioning device and electric screwdriver, screw conveyer is connected with the side edge of screw positioning device, screw positioning device includes positioning seat, the internal middle of positioning seat is equipped with vertically through positioning cavity, the screw conveyer is equipped with the screw conveyer, the screw conveyer is equipped with the screw conveyer, and the screw conveyer is equipped with the screw conveyer. A positioning cavity is formed in the positioning seat, a screw feeding groove is formed in the side edge of the positioning seat and communicates with the positioning cavity, the electric screwdriver is arranged above the positioning seat, an electric screwdriver head is arranged below the electric screwdriver, the electric screwdriver head and the positioning cavity are coaxially arranged, and a first positioning plate and a second positioning plate are rotationally arranged on the two sides of the middle of the positioning cavity correspondingly. And a square spacing part is arranged between the first positioning plate and the second positioning plate. According to the scheme, it can be ensured that the screw can be accurately positioned before being installed. Therefore, installation errors caused by inaccurate positioning can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw installation machines, and in particular relates to an automatic screw installation machine. Background Art

[0002] With the development of social economy, the demand for products is increasing, and most of the product assembly requires screws. Manual screwing is time-consuming and inefficient, so various screw installation machines continue to appear. The screw installation machines used in the current technology have complex structures, and the existing screw installation machines rely on manual feeding, and then the screw installation machines realize the installation of screws, which has low work efficiency.

[0003] Chinese patent application number 2015211427335 discloses a dynamic screw installation machine, including a feeding mechanism, a guide shaft, an electric screwdriver and a fixing mechanism connected to an external transmission member, the electric screwdriver is fixedly connected to the fixing mechanism, one end of the electric screwdriver is provided with an electric screwdriver head for installing screws, the feeding mechanism includes a main block and a feeding block, one end of the guide shaft is fixedly connected to the main block, and the other end of the guide shaft is connected to the fixing mechanism, a accommodating cavity for accommodating the feeding block is provided in the main block, a feed port, a discharge port and an installation head accommodating port arranged opposite to the discharge port are provided on the main block, a first through hole is provided on the feeding block, the feeding block can be moved in the accommodating cavity so that the first through hole can be optionally connected to the feed port or the discharge port, and the electric screwdriver head can be inserted into the installation head accommodating port and pass through the first through hole and out of the discharge port to install the screw.

[0004] The above patent solution has a simple structure and can automatically feed materials. However, when installing screws, the screws need to be positioned by gas before they can be installed with an electric screwdriver. This method not only increases the equipment cost, but also takes a lot of time to position the screws each time. It is not suitable for large-scale screw installation. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an automatic screw installation machine, including a screw conveying device, a screw positioning device and an electric screwdriver, the screw conveying device is connected to the side of the screw positioning device, the screw positioning device includes a positioning seat, a positioning cavity which passes through from top to bottom is provided in the middle of the interior of the positioning seat, a screw feeding groove is provided on the side of the positioning seat, the screw feeding groove is connected with the positioning cavity, the electric screwdriver is provided above the positioning seat, an electric screwdriver head is provided below the electric screwdriver, the electric screwdriver head is coaxially arranged with the positioning cavity, a first positioning plate and a second positioning plate are rotatably provided on both sides of the middle of the positioning cavity, a square spacing portion is provided between the first positioning plate and the second positioning plate, a first rotating space portion is provided on the positioning seat below the first positioning plate, and a second rotating space portion is provided on the positioning seat below the second positioning plate.

[0006] Preferably, a first return spring is provided at the bottom of the first space portion, and the top of the first return spring is connected to the bottom of the first positioning plate; a second return spring is provided at the bottom of the second space portion, and the top of the second return spring is connected to the bottom of the second positioning plate.

[0007] Preferably, a first positioning block and a second positioning block are rotatably provided on both sides of the bottom of the positioning cavity below the positioning seat, a funnel-shaped spacer is formed between the first positioning block and the second positioning block, and a third return spring and a fourth return spring are respectively provided on both sides of the bottom of the positioning seat, the third return spring is connected to the first positioning block, and the fourth return spring is connected to the second positioning block.

[0008] Preferably, the screw conveying device comprises a first side plate and a second side plate which are arranged obliquely, and a top plate is provided between the tops of the first side plate and the second side plate.

[0009] Preferably, a lifting device is provided on the side of the electric screwdriver, and the lifting device includes a lifting frame, a lifting rail is provided on the lifting frame, a lifting motor is provided on the top of the lifting frame, a lifting plate is connected to the output end of the lifting motor, the lifting plate is slidably arranged on the lifting rail, and the side of the lifting plate is connected to the electric screwdriver.

[0010] The advantages of the utility model are:

[0011] 1. This solution ensures that the screws can be accurately positioned before installation by providing a screw positioning device with a positioning cavity that passes through from top to bottom and a first positioning plate and a second positioning plate, which helps to reduce installation errors caused by inaccurate positioning.

[0012] 2. This solution uses the funnel-shaped spacer between the first positioning block and the second positioning block to ensure that the screws or other components to be installed can be accurately aligned with their predetermined installation positions when they move downward out of the positioning cavity, further reducing deviations and errors during the installation process and improving the accuracy and efficiency of installation.

[0013] 3. This solution sets up a lifting device, so that the height of the electric screwdriver can be flexibly adjusted. Whether it is to adapt to workpieces of different heights or to adjust the position of the electric screwdriver according to operational requirements, it can be achieved by controlling the lifting motor, which greatly improves the convenience of operation and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structure diagram of the utility model.

[0015] Figure 2 This is a structural diagram of the positioning seat of the utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the positioning seat of the utility model.

[0017] Figure 4 This is a structural diagram of the screw installation state of the positioning seat of the utility model.

[0018] Figure 5 This is a structural schematic diagram of the screw conveying device of the utility model.

[0019] In the figure: 1 screw conveying device, 2 screw positioning device, 3 electric screwdriver, 4 positioning seat, 5 positioning cavity, 6 screw feeding trough, 7 electric screwdriver head, 8 first positioning plate, 9 second positioning plate, 10 square spacer, 11 first rotating space, 12 second rotating space, 13 first return spring, 14 second return spring, 15 first positioning block, 16 second positioning block, 17 funnel-shaped spacer, 18 third return spring, 19 fourth return spring, 20 first side plate, 21 second side plate, 22 top plate, 23 lifting frame, 24 lifting rail, 25 lifting motor, 26 lifting plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. At the same time, when an element is referred to as "fixed on" or "provided on" another element, it can be directly on the other element or there may be a central element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting, or gluing. In short, for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Example 1

[0023] like Figure 1-3 As shown, an automatic screw installation machine includes a screw conveying device 1, a screw positioning device 2 and an electric screwdriver 3. The screw conveying device 1 is connected to the side of the screw positioning device 2. The screws are arranged in sequence from the screw conveying device 1 into the screw positioning device 2, and then aligned and installed by the electric screwdriver 3. Figure 5 The screw conveying device 1 includes a first side plate 20 and a second side plate 21 which are arranged obliquely. A top plate 22 is arranged at intervals between the tops of the first side plate 20 and the second side plate 21. A connecting block is arranged on the sides of the first side plate 20 and the second side plate 21 for connecting with the top plate 22. The space between the first side plate 20 and the second side plate 21 is used to accommodate the rod of the screw, and the space between the first side plate 20, the second side plate 21 and the top plate 22 is used to accommodate the head of the screw. The two sides of the screw head are against the top of the two side plates. Ball bearings can also be arranged on the contact part between the two side plates and the top plate 22 and the screw to reduce friction and facilitate screw conveying. Through the screw conveying device 1, the screws can be automatically conveyed to the positioning device without the need for manual placement one by one, thereby greatly improving production efficiency.

[0024] The screw positioning device 2 includes a positioning seat 4, a positioning cavity 5 which passes through the upper and lower parts of the interior of the positioning seat 4, a screw feed groove 6 which is opened on the side of the positioning seat 4, and the screw feed groove 6 is connected with the positioning cavity 5. After the screw slides out of the screw conveying device 1, it directly slides into the positioning cavity 5 through the screw feed groove 6.

[0025] The electric screwdriver 3 is arranged above the positioning seat 4, and an electric screwdriver head 7 is arranged below the electric screwdriver 3. The electric screwdriver head 7 is arranged coaxially with the positioning cavity 5. The first positioning plate 8 and the second positioning plate 9 are rotatably arranged on both sides of the middle of the positioning cavity 5, and a square spacing portion 10 is arranged between the first positioning plate 8 and the second positioning plate 9. A first rotating space portion 11 is opened on the positioning seat 4 below the first positioning plate 8, and a second rotating space portion 12 is opened on the positioning seat 4 below the second positioning plate 9. The first rotating space portion 11 and the second rotating space portion 12 are used to facilitate the rotation of the first positioning plate 8 and the second positioning plate 9. The screw slides into the square spacing portion 10 between the first positioning plate 8 and the second positioning plate 9. The distance between the square spacing portions 10 is greater than the rod of the screw and smaller than the head of the screw, so that the screw can be stuck. Then wait for the electric screwdriver head 7 to descend and be adsorbed with the screw. The bottom of the electric screwdriver head 7 is generally provided with a magnetic layer for adsorbing the screw. After adsorption, the electric screwdriver head 7 drives the screw to descend. In the process of descending, such as Figure 4As shown, the first positioning plate 8 and the second positioning plate 9 rotate in opposite directions, so that the distance between the square spacer 10 is greater than the head of the screw, so that the screw can move downward. A first return spring 13 is provided at the bottom of the first space portion, and the top of the first return spring 13 is connected to the bottom of the first positioning plate 8. A second return spring 14 is provided at the bottom of the second space portion, and the top of the second return spring is connected to the bottom of the second positioning plate 9. The first return spring 13 and the second return spring 14 are used to achieve the reset of the first positioning plate 8 and the second positioning plate 9.

[0026] Combination Figure 3 , the bottom of the positioning seat 4 is located at the bottom of the positioning cavity 5, and the first positioning block 15 and the second positioning block 16 are rotatably provided on both sides, and a funnel-shaped spacer 17 is formed between the first positioning block 15 and the second positioning block 16. The third reset spring 18 and the fourth reset spring 19 are respectively provided on both sides of the bottom of the positioning seat 4. The third reset spring 18 is connected to the first positioning block 15, and the fourth reset spring 19 is connected to the second positioning block 16. The funnel-shaped spacer 17 is used to finally adjust the position of the screw. Under the restriction of the funnel shape, the screw is automatically adjusted to the center position, which can ensure that the screw can accurately align with its predetermined installation position when moving downward. This design greatly reduces the deviation and error in the installation process and improves the accuracy and efficiency of the installation. The third reset spring 18 and the fourth reset spring 19 are used to achieve the reset of the first positioning block 15 and the second positioning block 16.

[0027] The side of the electric screwdriver 3 is provided with a lifting device, which includes a lifting frame 23, on which a lifting rail 24 is provided, and a lifting motor 25 is provided on the top of the lifting frame 23. The output end of the lifting motor 25 is connected to a lifting plate 26, which is slidably arranged on the lifting rail 24, and the side of the lifting plate 26 is connected to the electric screwdriver 3. Through the lifting device, the electric screwdriver 3 can achieve flexible height adjustment. Whether it is to adapt to workpieces of different heights or to adjust the position of the electric screwdriver 3 according to operational requirements, it can be achieved by controlling the lifting motor 25, which greatly improves the convenience of operation and work efficiency.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic screw installation machine, characterized in that: The invention comprises a screw conveying device (1), a screw positioning device (2) and an electric screwdriver (3), wherein the screw conveying device (1) is connected to the side of the screw positioning device (2), the screw positioning device (2) comprises a positioning seat (4), a positioning cavity (5) which passes through the positioning seat (4) from top to bottom is provided in the middle thereof, a screw feeding groove (6) is provided on the side of the positioning seat (4), and the screw feeding groove (6) is connected to the positioning cavity (5), the electric screwdriver (3) is arranged above the positioning seat (4), and the lower end of the electric screwdriver (3) is provided with a screw feeding groove (6). An electric screwdriver head (7) is provided in the square shape. The electric screwdriver head (7) is coaxially arranged with the positioning cavity (5). A first positioning plate (8) and a second positioning plate (9) are rotatably provided on both sides of the middle of the positioning cavity (5). A square spacing portion (10) is provided between the first positioning plate (8) and the second positioning plate (9). A first rotation space portion (11) is provided on the positioning seat (4) below the first positioning plate (8), and a second rotation space portion (12) is provided on the positioning seat (4) below the second positioning plate (9).

2. The automatic screw installation machine according to claim 1, characterized in that: A first return spring (13) is provided at the bottom of the first rotating space portion (11), and the top of the first return spring (13) is connected to the bottom of the first positioning plate (8). A second return spring (14) is provided at the bottom of the second rotating space portion (12), and the top of the second return spring (14) is connected to the bottom of the second positioning plate (9).

3. The automatic screw installation machine according to claim 2, characterized in that: A first positioning block (15) and a second positioning block (16) are rotatably provided on both sides of the bottom of the positioning cavity (5) below the positioning seat (4); a funnel-shaped spacer (17) is formed between the first positioning block (15) and the second positioning block (16); a third return spring (18) and a fourth return spring (19) are provided on both sides of the bottom of the positioning seat (4); the third return spring (18) is connected to the first positioning block (15), and the fourth return spring (19) is connected to the second positioning block (16).

4. The automatic screw installation machine according to claim 3, characterized in that: The screw conveying device (1) comprises a first side plate (20) and a second side plate (21) which are arranged obliquely, and a top plate (22) is provided at the top of the first side plate (20) and the second side plate (21) in intervals.

5. The automatic screw installation machine according to claim 4, characterized in that: A lifting device is provided on the side of the electric screwdriver (3), the lifting device comprising a lifting frame (23), a lifting rail (24) being provided on the lifting frame (23), a lifting motor (25) being provided on the top of the lifting frame (23), a lifting plate (26) being connected to the output end of the lifting motor (25), the lifting plate (26) being slidably arranged on the lifting rail (24), and a side of the lifting plate (26) being connected to the electric screwdriver (3).

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