Screw driving equipment

Abstract

The utility model relates to the field of assembly of screws on products, in particular to screw driving equipment, each screw driving station comprises a screw feeding mechanism and a positioning jig, and a linear moving mechanism has a multi-dimensional moving direction and is used for transporting electric screwdrivers back and forth between the screw feeding mechanism and the positioning jig; the screw feeding mechanism comprises a feeding disc and a feeding platform, a groove matched with the size of the feeding disc is formed in the feeding platform, the feeding disc is located in the groove and rotationally connected with the feeding platform, and an arc-shaped positioning groove matched with a screw is formed in the edge of the feeding disc and used for positioning the screw and feeding the screw to an area making contact with an electric screwdriver. The automatic screw turning device is composed of the screw feeding mechanism, the positioning jig, the electric screwdriver and the linear moving mechanism, the mode that manual screw turning is replaced by mechanical screwing is achieved, and in the aspect of efficiency, mechanical equipment works uninterruptedly, and the productivity is higher; the electric screwdriver is used for turning the screw, and the firmness between a product and the screw is effectively guaranteed through the fixed turning number of turns.

Description

Technical Field

[0001] This utility model relates to the field of screw assembly on products, and more particularly to a screw-driving device. Background Technology

[0002] Tightening screws by hand is a very common action in reality. This action is not affected by the field or environment and still retains the inherent way of tightening.

[0003] However, when applied to work, this frequent and repetitive work method can make the workers feel bored and listless. This change in mentality will affect the workers' work efficiency. At the same time, the efficiency limit of manual twisting is relatively low, and low production capacity will lead to a series of problems such as insufficient supply. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a screw-driving device that improves screw-driving efficiency by replacing manual screw-driving.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a screw-driving device, characterized in that it includes several screw-driving stations and an electric screwdriver mounted on a linear moving mechanism. Each screw-driving station includes a screw feeding mechanism and a positioning fixture. The linear moving mechanism has multiple moving directions and is used to transport the electric screwdriver back and forth between the screw feeding mechanism and the positioning fixture. The screw feeding mechanism includes a feeding tray and a feeding platform. The feeding platform is provided with a groove adapted to the size of the feeding tray. The feeding tray is located in the groove and is rotatably connected to the feeding platform. The edge of the feeding tray is provided with an arc-shaped positioning groove adapted to the screw, used to position the screw and feed the screw into the area that contacts the electric screwdriver.

[0006] Furthermore, the screw feeding mechanism includes a vibratory feeder and a feeding track. One end of the feeding track is connected to the feeding port of the vibratory feeder, and the other end of the feeding track is connected to the side wall of the groove.

[0007] Furthermore, it also includes a negative pressure device, which includes a material taking tube with openings at both ends and a hollow structure inside that allows the two ends to communicate with each other. The material taking tube is fitted onto the bit of the electric screwdriver, and a negative pressure port is provided on the side of the material taking tube.

[0008] Furthermore, it also includes an electric screwdriver height adjustment mechanism disposed on the output end of the linear movement mechanism. The electric screwdriver height adjustment mechanism includes a height adjustment cylinder, a first mounting base, a second mounting base, and a sliding assembly. The first mounting base is connected to the output end of the linear movement mechanism, the sliding assembly is disposed on the first mounting base, the second mounting base is connected to the movable end of the sliding assembly, and the electric screwdriver is fixed on the second mounting base.

[0009] Furthermore, it also includes a limit switch and a positioning plate, with the positioning plate disposed on the second mounting base and the limit switch disposed on the movement trajectory of the second mounting base.

[0010] Furthermore, the positioning fixture is provided with a plurality of positioning posts distributed around its surface, and the positioning posts together form a positioning space that constrains the product.

[0011] Furthermore, the positioning fixture is equipped with a support block that suspends the screw holes of the product.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model consists of a screw feeding mechanism, a positioning fixture, an electric screwdriver, and a linear movement mechanism. This composition realizes the mechanical replacement of manual screw tightening. In terms of efficiency, the uninterrupted operation of the mechanical equipment results in higher production capacity. At the same time, the use of an electric screwdriver to tighten screws ensures the firmness between the product and the screw by a fixed number of turns.

[0014] 2. The screw feeding method of this utility model adopts a combination of a feeding tray and a groove, so that the screw is attached between the arc-shaped positioning groove and the inner wall of the groove. This feeding method limits the feeding to only one screw at a time, and at the same time positions the screw to ensure that the threaded joint on the screw corresponds to the electric screwdriver. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 yes Figure 1 Enlarged diagram of point A.

[0017] Figure 3 yes Figure 1 Enlarged diagram of point B.

[0018] Figure 4 This is a schematic diagram of the assembly of the electric screwdriver height adjustment mechanism and the electric screwdriver.

[0019] Figure 5 yes Figure 4 A stereoscopic view from another perspective. Detailed Implementation

[0020] like Figure 1-5 As shown, this utility model is a screw-driving device, which includes a workbench 1a, a linear moving mechanism 2, an electric screwdriver 3, and several screw-driving stations. The workbench 1a is provided with a suspended support base 1b. The linear moving mechanism 2 is set on the support base 1b. After the electric screwdriver 3 is installed on the output end of the linear moving mechanism 2, it is suspended on the workbench 1a. The screw-driving stations are set on the workbench 1a.

[0021] Each screw-tightening station includes a screw feeding mechanism and a positioning fixture. The linear moving mechanism 2 has a multi-dimensional moving direction and is used to transport the electric screwdriver 3 back and forth between the screw feeding mechanism and the positioning fixture 4. The screw feeding mechanism includes a feeding tray 51 and a feeding platform 52. The feeding platform 52 is provided with a groove adapted to the size of the feeding tray 51. The feeding tray 51 is located in the groove and is rotatably connected to the feeding platform 52. The edge of the feeding tray 51 is provided with an arc-shaped positioning groove 51a adapted to the screw 14, which is used to position the screw 14 and feed the screw 14 into the area that contacts the electric screwdriver 3.

[0022] This utility model consists of a screw feeding mechanism, a positioning fixture 4, an electric screwdriver 3, and a linear moving mechanism 2. This composition realizes the means of mechanically replacing manual screw tightening 14. In terms of efficiency, the uninterrupted operation of the mechanical equipment results in higher production capacity. At the same time, the use of the electric screwdriver 3 to tighten the screw 14 and the fixed number of turns effectively ensure the firmness between the product 13 and the screw 14.

[0023] The screw 14 feeding method of this utility model adopts a combination of feeding tray 51 and groove, so that screw 14 is attached between arc-shaped positioning groove 51a and inner wall of groove. This feeding method limits the feeding to only one screw 14 at a time, and at the same time positions the screw 14 to ensure that the threaded joint on the screw 14 corresponds to the electric screwdriver 3.

[0024] It should be noted that the workbench 1a is equipped with a rotating mechanism, and the output end of the rotating mechanism is connected to the feeding tray 51.

[0025] Furthermore, the screw feeding mechanism includes a housing 61, a vibratory feeder, and a feeding track 62. The vibratory feeder is disposed inside the housing 61, one end of the feeding track 62 is connected to the feeding port of the vibratory feeder, and the other end of the feeding track 62 is connected to the side wall of the groove. For a headed component like the screw 14, it has a specific orientation. The vibratory feeder can ensure that the screw 14 is always in the correct orientation when it is fed into the feeding track 62, according to the shape and size of the screw 14.

[0026] Furthermore, it also includes an electric screwdriver height adjustment mechanism disposed on the output end of the linear movement mechanism 2. The electric screwdriver height adjustment mechanism includes a height adjustment cylinder 71, a first mounting base 72, a second mounting base 73, and a sliding assembly 74. The first mounting base 72 is connected to the output end of the linear movement mechanism 2. The height adjustment cylinder 71 and the sliding assembly 74 are disposed on the first mounting base 72. The second mounting base 73 is connected to the movable end of the sliding assembly 74. The electric screwdriver 3 is fixed on the second mounting base 73. The piston rod of the height adjustment cylinder 71 is connected to the second mounting base 73. This design has a more stable effect, does not require additional auxiliary components such as guide rods, and has a smaller number of parts in the equipment.

[0027] Furthermore, it also includes a negative pressure device, which includes a feeding tube 81. The feeding tube 81 is mounted on the second mounting base 73 via a third mounting base 82. The feeding tube 81 has openings at both ends, and its internal hollow structure allows the two ends to communicate with each other. The feeding tube 81 is fitted onto the bit of the electric screwdriver 3. The side of the feeding tube 81 has a negative pressure port 81a, which is connected to an external vacuum device. The purpose is to improve the stability of the connection between the screw 14 and the bit. The magnetic material on the bit is gradually consumed with the increase of the number of uses. The magnetic force alone cannot satisfy the transfer of the screw 14 from the screw feeding mechanism to the positioning fixture 4. Only with the help of negative pressure can the problem of the screw 14 not being able to reach the product 13 smoothly be solved.

[0028] Furthermore, it also includes a limit switch 9 and a positioning piece 10. The positioning piece 10 is disposed on the second mounting base 73, and the limit switch 9 is disposed on the first mounting base 72 and on the movement trajectory of the second mounting base 73. The limit switch 9 is a contact sensor. When the positioning piece 10 contacts the limit switch 9, the height adjustment cylinder 71 stops pushing the second mounting base 73.

[0029] Furthermore, the positioning fixture 4 is provided with a plurality of positioning posts 41 distributed around its surface, and the positioning posts 41 form a positioning space that constrains the product 13; the product 13 is provided with arc-shaped holes E around its perimeter. After the product 13 is placed on the positioning fixture 4, the positioning posts 41 and the arc-shaped holes E form a mutually cooperating relationship, thereby fixing the position of the product 13.

[0030] Furthermore, the positioning fixture 4 is provided with a support block 12 that suspends the screw 14 hole of the product 13 in the air. This is to prevent the screw 14 from making rigid contact with the positioning fixture 4 after passing through the screw 14 hole.

[0031] Electric screwdriver 3, linear moving mechanism 2, and vibratory feeder are all existing technologies, and their specific structures will not be described in detail.

[0032] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A screw driving apparatus characterized by comprising: The screwing station comprises a screw feeding mechanism and a positioning jig, and the linear moving mechanism has multiple moving directions for transporting the electric screwdriver between the screw feeding mechanism and the positioning jig.

2. A screw driving apparatus according to claim 1, wherein The screw feeding mechanism comprises a vibrating disc and a feeding track, one end of the feeding track is connected with the feeding port of the vibrating disc, and the other end of the feeding track is communicated with the side wall of the groove.

3. The screw driving apparatus of claim 1 wherein, The negative pressure device comprises a material taking pipe, the two ends of the material taking pipe are provided with openings, and the hollow structure inside the material taking pipe makes the two ends communicated with each other.

4. The screw driving apparatus of claim 1 wherein, The electric screwdriver height adjusting mechanism comprises a height adjusting cylinder, a first mounting seat, a second mounting seat and a sliding assembly, the first mounting seat is connected with the output end of the linear moving mechanism, the sliding assembly is arranged on the first mounting seat, the second mounting seat is connected with the movable end of the sliding assembly, and the electric screwdriver is fixed on the second mounting seat.

5. A screw driving apparatus according to claim 4, wherein The positioning jig is provided with a plurality of positioning columns distributed around the surface of the positioning jig, and the positioning columns form a positioning space for restraining the product.

6. The screw driving apparatus of claim 1 wherein, The positioning jig is provided with a supporting block for suspending the screw hole of the product.

7. The screw driving apparatus of claim 1 wherein, ​

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