Expanding mechanism adaptive to electric screwdriver

Abstract

The utility model discloses an expansion mechanism adapted to an electric screwdriver, which comprises a first clamping seat group, a second clamping seat group and a screw adsorption assembly, the first clamping seat group is clamped below a screwdriver main body, a floating mechanism is arranged between the first clamping seat group and the second clamping seat group, and the screw adsorption assembly comprises a middle connecting piece and a screw adsorption piece. The second clamping base set is clamped at one end of the middle connecting piece, the other end of the middle connecting piece is connected with the screw adsorption piece, a middle through hole of the middle connecting piece is communicated with a middle hole channel of the screw adsorption piece, and a screwdriver rod of the screwdriver body penetrates through the middle through hole and is located in the middle hole channel of the screw adsorption piece. A side hole channel communicated with the middle hole channel is formed in the side position of the screw adsorption piece, and an air nozzle used for being communicated with a vacuum pipeline is connected to the side hole channel. The electric screwdriver can be matched with different electric screwdrivers, the function of automatically adsorbing stainless steel screws of the electric screwdrivers can be expanded, and the assembly efficiency of part screws is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical assembly, in particular to an expansion mechanism suitable for an electric screwdriver. Background Art

[0002] In the production process of products such as model airplanes and toys, screw assembly is a conventional method of connecting and assembling parts. Currently, electric screwdrivers used for screw assembly mainly use magnetic cross-head blades to attract iron screws. However, for production processes that require stainless steel screws to assemble parts, magnetic cross-head blades cannot attract stainless steel screws. Similarly, most automatic screw-locking machines that need to pick up and place screws from the outside also use the magnetic suction principle to attract screws. For stainless steel screws, currently, the main method of screw assembly is for the assembly worker to hold the screw in one hand and hold the screwdriver with the other hand to align the screw. To this end, we have proposed an expansion mechanism suitable for electric screwdrivers. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an expansion mechanism suitable for an electric screwdriver.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: an expansion mechanism suitable for an electric screwdriver, comprising a first clamping seat group, a second clamping seat group, and a screw adsorption component, the first clamping seat group being clamped under the screwdriver body, a floating mechanism being provided between the first clamping seat group and the second clamping seat group, the screw adsorption component comprising an intermediate connecting piece and a screw adsorption piece, the second clamping seat group being clamped at one end of the intermediate connecting piece, the other end of the intermediate connecting piece being connected to the screw adsorption piece, the intermediate through hole of the intermediate connecting piece being connected to the middle channel of the screw adsorption piece, the screwdriver rod of the screwdriver body passing through the intermediate through hole and being located in the middle channel of the screw adsorption piece, a side channel connected to the middle channel being opened on the side of the screw adsorption piece, and an air nozzle for connecting to a vacuum pipe being connected to the side channel.

[0005] It is further explained that the floating mechanism includes a fixed rod and a spring member, the spring member is sleeved on the fixed rod, a rod kit is provided on the fixed rod, one end of the spring member is in conflict with the rod kit, and the other end of the spring member is in conflict with the second clamping seat group.

[0006] To further illustrate, the first clamping seat assembly includes a first left clamping block and a first right clamping block, the first right clamping block is screw-connected to the first left clamping block, and the first left clamping block is threadedly connected to the fixing rod.

[0007] It is further explained that the second clamp seat group includes a second left clamp block and a second right clamp block, the second right clamp block is connected to the second left clamp block with screws, the fixing rod is passed through the second left clamp block, and the second left clamp block is provided with a sunken groove for accommodating one end of the spring member.

[0008] To further illustrate, the screwdriver body includes a screwdriver handle and a rotary chuck for locking and clamping the screwdriver rod, and the first right clamping block and the first left clamping block of the first clamping seat group are clamped at the screwdriver handle.

[0009] The beneficial effects of the present invention are that the present invention can be adapted to different electric screwdrivers, can expand the automatic adsorption function of the electric screwdriver for stainless steel screws, and improve the efficiency of screw assembly of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of a self-priming screwdriver.

[0011] Figure 2 This is a cross-sectional view of a self-priming screwdriver.

[0012] Figure 3 This is a partial enlarged diagram of a self-priming screwdriver.

[0013] Figure 4 This is a schematic diagram of the structural decomposition of a self-priming screwdriver.

[0014] Figure Number:

[0015] 10. Screwdriver body; 11. Screwdriver bar; 12. Screwdriver handle; 13. Rotating chuck; 14. Push button switch; 20. First clamping assembly; 21. First left clamping block; 22. First right clamping block; 30. Second clamping assembly; 31. Second left clamping block; 311. Sink; 32. Second right clamping block;

[0016] 40. Screw adsorption assembly; 41. Intermediate connecting piece; 411. Intermediate through hole; 42. Screw adsorption piece; 421. Middle channel; 422. Side channel; 43. Air nozzle; 50. Floating mechanism; 51. Fixed rod; 52. Spring piece; 53. Rod kit. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] Combined with attachment Figure 1 To the attached Figure 4As shown, an expansion mechanism adapted for an electric screwdriver includes a first clamping seat group 20, a second clamping seat group 30, and a screw adsorption assembly 40. The first clamping seat group 20 is clamped under the screwdriver body 10. A floating mechanism 50 is provided between the first clamping seat group 20 and the second clamping seat group 30. The floating mechanism 50 includes a fixed rod 51 and a spring member 52. The spring member 52 is sleeved on the fixed rod 51. A rod kit 53 is provided on the fixed rod 51. One end of the spring member 52 conflicts with the rod kit 53, and the other end of the spring member 52 conflicts with the second clamping seat group 30.

[0019] The screw-absorbing assembly 40 includes an intermediate connector 41 and a screw-absorbing member 42. The second clamping seat assembly 30 is clamped to one end of the intermediate connector 41, and the other end of the intermediate connector 41 is connected to the screw-absorbing member 42. The intermediate through-hole 411 of the intermediate connector 41 is connected to the central channel 421 of the screw-absorbing member 42. The screwdriver shaft 11 of the screwdriver body 10 passes through the intermediate through-hole 411 and is located within the central channel 421 of the screw-absorbing member 42. The floating mechanism 50 allows the screw-absorbing member 42 to float up and down relative to the screwdriver shaft 11, facilitating the screwdriver shaft 11 to securely attach the absorbed screw to the component. This utility model is adaptable to various electric screwdrivers, expanding the automatic stainless steel screw-absorbing function of the electric screwdriver and improving the efficiency of screw assembly.

[0020] Combined with attachment Figure 2 and attached Figure 4 As shown, the screw attachment 42 has a side channel 422 connected to the central channel 421. A gas nozzle 43 is connected to the side channel 422 for connection to a vacuum line. In use, the gas nozzle 43 is connected to one end of the vacuum line, while the other end of the line is connected to a vacuum generator or vacuum pump. This structural design allows for automatic attachment of stainless steel screws, eliminating the need for manual alignment with the threaded hole of the component during attachment.

[0021] Combined with attachment Figure 1 and attached Figure 2 As shown, the first clamp assembly 20 includes a first left clamping block 21 and a first right clamping block 22. The first right clamping block 22 is screwed to the first left clamping block 21, and the first left clamping block 21 is threadedly connected to the fixing rod 51. The second clamp assembly 30 includes a second left clamping block 31 and a second right clamping block 32. The second right clamping block 32 is screwed to the second left clamping block 31. The fixing rod 51 is inserted into the second left clamping block 31. The second left clamping block 31 is provided with a recessed groove 311 for accommodating one end of the spring member 52. The first right clamping block 22 and the first left clamping block 21 of the first clamp assembly 20 are clamped together at the screwdriver handle 12.

[0022] After sucking up the stainless steel screw, the screwdriver body 10 is moved to the threaded hole of the component to be screwed, the screw suction piece 42 is aligned with the threaded hole of the component, and then the screwdriver body 10 is pressed down to insert the stainless steel screw in the middle channel 421 of the screw suction piece 42 into the threaded hole and automatically tighten it, thereby completing the screw locking on the component.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] It should be understood that the present invention uses terms such as "first" and "second" to describe various types of information, but such information should not be limited to these terms; these terms are merely used to distinguish information of the same type from one another. For example, "first" information could also be referred to as "second" information, and similarly, "second" information could also be referred to as "first" information without departing from the scope of the present invention.

[0025] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An expansion mechanism adapted for an electric screwdriver, characterized in that: The invention comprises a first clamping seat group (20), a second clamping seat group (30), and a screw adsorption assembly (40); the first clamping seat group (20) is clamped below the screwdriver body (10); a floating mechanism (50) is provided between the first clamping seat group (20) and the second clamping seat group (30); The screw adsorption assembly (40) includes an intermediate connecting piece (41) and a screw adsorption piece (42). The second clamping seat group (30) is clamped at one end of the intermediate connecting piece (41). The other end of the intermediate connecting piece (41) is connected to the screw adsorption piece (42). The intermediate through hole (411) of the intermediate connecting piece (41) is connected to the middle channel (421) of the screw adsorption piece (42). The screwdriver rod (11) of the screwdriver body (10) passes through the intermediate through hole (411) and is located in the middle channel (421) of the screw adsorption piece (42). A side channel (422) connected to the middle channel (421) is opened on the side of the screw adsorption piece (42). The side channel (422) is connected to an air nozzle (43) for connecting to a vacuum pipe.

2. The expansion mechanism adapted for an electric screwdriver according to claim 1, characterized in that: The floating mechanism (50) includes a fixed rod (51) and a spring member (52). The spring member (52) is sleeved on the fixed rod (51). A rod set (53) is provided on the fixed rod (51). One end of the spring member (52) is in conflict with the rod set (53), and the other end of the spring member (52) is in conflict with the second clamping seat group (30).

3. The expansion mechanism adapted for an electric screwdriver according to claim 2, characterized in that: The first clamping seat group (20) comprises a first left clamping block (21) and a first right clamping block (22); the first right clamping block (22) is screw-connected to the first left clamping block (21); and the first left clamping block (21) is threadedly connected to the fixing rod (51).

4. The expansion mechanism adapted for an electric screwdriver according to claim 2, characterized in that: The second clamping seat group (30) includes a second left clamping block (31) and a second right clamping block (32). The second right clamping block (32) is screw-connected to the second left clamping block (31). The fixing rod (51) is passed through the second left clamping block (31). The second left clamping block (31) is provided with a sinking groove (311) for accommodating one end of the spring member (52).

5. The expansion mechanism adapted for an electric screwdriver according to claim 3, characterized in that: The screwdriver body (10) comprises a screwdriver handle (12), a rotary clamp (13) for locking and clamping the screwdriver rod (11), and the first right clamping block (22) and the first left clamping block (21) of the first clamping seat group (20) are clamped at the screwdriver handle (12).

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