CN210649398U

CN210649398U - Electric screwdriver capable of automatically guiding screw and screw mounting equipment

Info

Publication number: CN210649398U
Application number: CN201920817858.5U
Authority: CN
Inventors: 邵立伟; 陈明
Original assignee: Zhongshan Research Institute Beijing Institute Of Technology; Beijing Institute of Technology BIT
Current assignee: Zhongshan Research Institute Beijing Institute Of Technology; Beijing Institute of Technology BIT
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-06-02
Anticipated expiration: 2029-05-31

Abstract

An electric screwdriver with automatic screw introduction and a screw installation device, the electric screwdriver with automatic screw introduction comprises: the electric screwdriver component comprises a motor and an electric screwdriver rod, and the electric screwdriver rod is connected to an output shaft of the motor; the material guide piece comprises a material guide hole and a material guide pipe, the material guide hole is a through hole penetrating through the material guide piece, and the material guide pipe is communicated with the material guide hole; the clamping pieces are hinged to the material guiding pieces and comprise clamping parts, and when the clamping parts are in a closed state, the screws slide out of the material guiding holes and then are clamped between the clamping parts. According to the electric screwdriver and the screw mounting equipment capable of automatically guiding the screws, the guide members are arranged, the screws can be clamped between the clamping members through the guide pipes and the guide holes, so that the electric screwdriver rod can be abutted to the screws through the guide holes, and when the screws are aligned to the mounting positions, the electric screwdriver rod extrudes the screws, and the screws push away the clamping parts of the clamping members and are screwed on the mounting positions of the workpiece.

Description

Electric screwdriver capable of automatically guiding screw and screw mounting equipment

Technical Field

The utility model relates to an automatic change processing equipment, especially an automatic leading-in screw's electricity criticize and screw erection equipment.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Nuts and screws are commonly used in product assembly processes, such as: the plastic fittings of the sound equipment need to be fixedly connected by screws, and nuts are firstly installed in fixing holes of the fittings, and then the screws are tightened. In the existing operation mode, a screw needs to be manually placed into an accessory, and then the screw is manually screwed into the accessory for assembly, so that the operation is complex, the assembly efficiency is low, and the hand is easily injured.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an electric screwdriver and a screw installation apparatus for automatically introducing screws so as to introduce screws for the electric screwdriver.

An electric screwdriver with automatic screw introduction function, comprising:

the electric screwdriver component comprises a motor and an electric screwdriver rod, and the electric screwdriver rod is connected to an output shaft of the motor and driven by the motor to rotate;

the material guiding piece comprises a material guiding hole and a material guiding pipe, the material guiding hole is a through hole penetrating through the material guiding piece, and the material guiding pipe is communicated with the material guiding hole, so that the screw is guided into the material guiding hole from the material guiding pipe;

the clamping parts of the clamping parts can be opened and closed, and when the clamping parts are in a closed state, the screws slide out of the material guide holes and then are clamped between the clamping parts;

when the electric screwdriver rod penetrates through the material guide hole in a moving mode along the length direction of the material guide hole and abuts against the screw, the clamping portion is opened under the pushing of the screw so as to be screwed into the screw.

Preferably, the clamping part comprises a groove body, and when the clamping part is closed, the groove body forms a through hole communicated with the material guide hole; the area of the cross section of the groove body is gradually reduced along the direction far away from the material guide hole.

Preferably, the material guiding member further comprises a material guiding surface, the material guiding pipe is communicated with the material guiding hole through the material guiding surface, and the material guiding pipe is obliquely connected to the material guiding member, so that the screw enters the material guiding hole along the material guiding surface under the action of self weight.

Preferably, the method further comprises the following steps:

a support;

the first moving mechanism comprises a first sliding seat and a first air cylinder, and the first sliding seat is movably connected to the support along the vertical direction and is connected to the motor; the first air cylinder is connected to the support, and an output shaft of the first air cylinder is connected to the first sliding seat so as to drive the first sliding seat to move in the vertical direction;

the first adjusting mechanism comprises a first adjusting rod and a second sliding seat, the first adjusting rod is rotatably connected to the support, the second sliding seat is connected to the first adjusting rod through threads and movably connected with the support, and the first adjusting rod is used for adjusting the position of the second sliding seat along the length direction of the first adjusting rod.

Preferably, the method further comprises the following steps:

the sleeve is connected to the material guide piece, and the electric screwdriver rod sequentially penetrates through the sleeve and the material guide hole to abut against the screw;

a second moving mechanism including a third slider connected to the bracket movably in a vertical direction and connected to the sleeve, and a second cylinder; the second air cylinder is connected to the support, and an output shaft of the second air cylinder is connected to the third sliding seat so as to drive the third sliding seat to move in the vertical direction;

and the second adjusting mechanism comprises a second adjusting rod and a fourth sliding seat, the second adjusting rod is rotationally connected to the support, and the fourth sliding seat is connected to the second adjusting rod through threads and movably connected with the support and used for adjusting the position of the fourth sliding seat along the length direction of the second adjusting rod.

Preferably, the electric screwdriver rod comprises a plurality of connecting rods, and the connecting rods are hinged end to end.

Preferably, the connecting rod comprises at least one telescopic rod, and the length of the electric screwdriver rod is adjusted by lengthening or shortening the telescopic rod.

A screw mounting device comprising:

the rotary table comprises a plurality of jigs for fixing workpieces;

the electric screwdriver is used for installing the screw on the workpiece fixed on the jig.

Preferably, the apparatus further comprises a clamping mechanism for mounting or transferring the workpiece to or from the turntable, the clamping mechanism comprising:

a moving guide rail;

a moving frame movably connected to the moving guide rail;

the lifting part comprises a lifting cylinder and a lifting rod, the lifting cylinder is arranged on the moving frame, and the lifting rod is connected with the lifting cylinder and driven by the lifting cylinder to move along the vertical direction;

and the clamping jaw air cylinder is connected to the lifting rod and used for clamping the workpiece.

Preferably, the electric screwdriver corresponds to a mounting position of the workpiece, so that the electric screwdriver simultaneously tightens or loosens a plurality of screws.

Compared with the prior art, the electric screwdriver and the screw mounting equipment capable of automatically guiding the screws are provided with the material guiding parts, the screws can be clamped between the clamping parts through the material guiding pipes through the material guiding holes, so that the electric screwdriver rod can be abutted to the screws through the material guiding holes, and when the screws are aligned to the mounting positions, the electric screwdriver rod extrudes the screws, and the screws push away the clamping parts of the clamping parts to be screwed on the mounting positions of the workpieces.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural view of a screw mounting apparatus.

Fig. 2 is a schematic structural view of the electric screwdriver for automatically introducing screws.

Fig. 3 is a schematic structural view of the material guide member and the clamping member.

Fig. 4 is a schematic sectional structure view of VI-VI in fig. 3.

Fig. 5 is a schematic structural view of the bracket, the first moving mechanism, and the first adjusting mechanism.

Fig. 6 is a schematic structural view of the bracket, the sleeve, the second moving mechanism and the second adjusting mechanism.

Fig. 7 is a schematic structural view of the chucking mechanism.

Description of the main elements

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and the described embodiments are merely some embodiments, rather than all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In various embodiments of the present invention, for convenience of description and not limitation, the term "connected" as used in the specification and claims of the present invention is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

Fig. 1 is a schematic structural view of a screw mounting apparatus. As shown in fig. 1, the screw installation apparatus includes a work platform 50, a turntable 30, a plurality of electric batons 10, and a clamping mechanism 20. The turntable 30, the electric screwdriver 10 and the clamping mechanism 20 are arranged on the working platform 50 and are used for automatically and quickly screwing in screws 60 (shown in figure 4) on the installation position of the workpiece 40. The workpiece 40 may be a workpiece 40 used for different devices, and may be a component in an electronic device such as a sound system or a mobile phone.

The turntable 30 is substantially disc-shaped, and the middle portion of the turntable 30 is rotatably disposed on the working platform 50, that is, the turntable 30 can rotate relative to the working platform 50. In some embodiments, a rotating motor is further connected to the bottom of the turntable 30 to drive the turntable 30 to rotate clockwise or counterclockwise. The turntable 30 may also be provided with one or more fixtures 31 for holding the workpiece 40. As shown in fig. 1, the rotary table 30 is provided with 6 jigs 31, the 6 jigs 31 are uniformly distributed on the rotary table 30 along the circumferential direction, and the workpiece 40 is fixed on the jigs 31 so that the screwdriver 10 can screw the screw 60 into the mounting position of the workpiece 40.

As shown in fig. 1, the electric screwdriver 10 is provided in two groups, and screws 60 can be screwed into diagonally-located mounting positions of the workpiece 40 at the same time. In use, the first group of electric screwdriver 10 moves downwards at the same time, and after the screw 60 is screwed into the mounting position at the diagonal position, the rotary disc 30 rotates to the position below the next group of electric screwdriver 10. The next batch of electric screwdriver 10 moves downwards and screws 60 are screwed into the mounting positions at another pair of angular positions to increase the mounting efficiency of the screws 60.

Fig. 2 is a schematic structural view of the electric screwdriver 10 for automatically introducing screws. As shown in fig. 2, the electric screwdriver 10 includes a support 12, an electric screwdriver component, a material guiding member 11, a pair of clamping members 111, a first moving mechanism, a second moving mechanism, a first adjusting mechanism and a second adjusting mechanism. The electric screwdriver assembly is connected to the bracket 12 through the first moving mechanism and the first adjusting mechanism, the guide member 11 and the clamping member 111 are connected to the bracket 12 through the second moving mechanism and the second adjusting mechanism, and the electric screwdriver rod 131 of the electric screwdriver assembly passes through the guide member 11 to screw in the screw 60.

The screwdriver component comprises a motor 13 and a screwdriver rod 131, the top of the screwdriver rod 131 is connected to an output shaft of the motor 13, and the bottom of the screwdriver rod is provided with a linear cutter head or a cross-shaped cutter head for rotating the screw 60. In this way, the motor 13 can turn the screw 60 via the screwdriver rod 131. As shown in fig. 2, the electric screwdriver rod 131 is in a rod shape and comprises a connecting rod 1312 and a telescopic rod 1311, one end of the telescopic rod 1311 is hinged to the output shaft of the motor 13, and the other end is hinged to one end of the connecting rod 1312; the bottom of the connecting rod 1312 is connected to a cutting head for turning the screw 60, so that the problem of bending due to misalignment of the electric screwdriver 131 is avoided.

Fig. 3 is a schematic structural view of the material guiding member 11 and the clamping member 111, and fig. 4 is a schematic structural view of a section VI-VI in fig. 3. As shown in fig. 3 and 4, the material guide member 11 includes a material guide hole 115, a material guide surface 114 and a material guide tube 112, the material guide hole 115 is a through hole penetrating through the material guide member 11, the material guide tube 112 communicates with the material guide hole 115 through the material guide surface 114, and the material guide tube 112 is connected to the material guide member 11 in an inclined manner such that the screw 60 enters the material guide hole 115 along the material guide surface 114 under the action of its own weight and the head of the screw 60 is close to the direction of the electric batch assembly.

The clamping pieces 111 comprise clamping parts 1111 arranged at the ends, and the middle parts of the clamping pieces 111 are hinged to the material guiding piece 11, so that the clamping parts 1111 of the clamping pieces 111 can be opened and closed, that is, the clamping parts 1111 of the clamping pieces 111 can be opened or closed relatively. When the clamping parts 1111 are closed, the screw 60 slides out of the material guide hole 115 and then is clamped between the clamping parts 1111, so that the screw 60 is fixed between the clamping parts 1111 with the end facing the workpiece 40 and the head facing the electric screwdriver rod 131. When the screwdriver rod 131 moves downward to abut against the screw 60, the screw 60 moves downward by the pressing of the screwdriver rod 131 so that the clamping portion 1111 is opened, and the tail portion of the screw 60 is aligned with the installation position of the workpiece 40 to be screwed into the workpiece 40 by the screwdriver rod 131.

In some embodiments, the clamping portion 1111 includes a groove body, when the clamping portion 1111 is closed, the groove body forms a through hole communicating with the guide hole 115, and the cross-sectional area of the groove body decreases in a direction away from the guide hole 115 to form a conical hole, so that the screw 60 can be caught in the clamping portion 1111 when the clamping portion 1111 is in a closed state. Under the compression of the screwdriver rod 131, the screw 60 moves downward and opens the clamp 1111 to be screwed into the workpiece 40 by the screwdriver rod 131.

Fig. 5 is a schematic structural view of the carriage 12, the first moving mechanism, and the first adjusting mechanism. As shown in fig. 5, the first moving mechanism is used to move the electric screwdriver 10 so that the electric screwdriver 10 can move up and down in a vertical direction to screw in the screw 60. The first moving mechanism includes a first slider 141 and a first cylinder 14. In this embodiment, the first slide 141 is movably connected to the bracket 12 in a vertical direction by a slider and a rail, and the motor 13 of the electric screwdriver 10 is fixedly mounted on the first slide 141 to move up and down along with the first slide 141. The first cylinder 14 is connected to the bracket 12, and an output shaft of the first cylinder 14 is connected to the first slider 141 to drive the first slider 141 to move in a vertical direction.

The first adjustment mechanism is used to adjust the position of the first cylinder 14 in the vertical direction. The first adjustment mechanism comprises a first adjustment lever 15 and a second slide 151. The first adjustment lever 15 is rotatably connected to the bracket 12, at least a portion of which is threaded. The second carriage 151 is movably connected to the carriage 12 by a slider and a rail so that the second carriage 151 can move up and down in the vertical direction with respect to the carriage 12. In order to adjust the position of the second slider 151, the second slider 151 is threadedly coupled to the first adjustment lever 15, and the position of the second slider 151 can be adjusted in the longitudinal direction of the first adjustment lever 15 when the first adjustment lever 15 is rotated. In some embodiments, the first adjustment mechanism further includes a first handle 152, and the first handle 152 is coupled to the first adjustment lever 15 to facilitate rotation of the first adjustment lever 15 by a worker.

Fig. 6 is a schematic structural view of the holder 12, the sleeve 113, the second moving mechanism, and the second adjusting mechanism. As shown in fig. 6, the electric screwdriver 10 further comprises a sleeve 113, a second moving mechanism and a second adjusting mechanism. The sleeve 113 is hollow inside and is connected to the material guiding member 11 at the bottom, and the electric screwdriver 131 sequentially passes through the sleeve 113 and the material guiding hole 115 to abut against the screw 60, so that the electric screwdriver 131 is aligned such that the electric screwdriver 131 can abut against the screw 60 vertically to screw in the screw 60.

The second moving mechanism is used for moving the material guiding pipe 112 and the material guiding member 11, and includes a third slide 161 and a second cylinder 16. The third carriage 161 is connected to the carriage 12 by a slide and a rail to be movable in a vertical direction. The third slide 161 is connected to the top of the sleeve 113, so that the guide member 11 can be moved in the vertical direction by the sleeve 113. The second cylinder 16 is connected to the support 12, and an output shaft of the second cylinder 16 is connected to the third carriage 161 to drive the third carriage 161 to move in the vertical direction.

The second adjusting mechanism is used for adjusting the position of the second cylinder 16 in the vertical direction, and includes a second adjusting rod 17 and a fourth slider 171. The second adjustment lever 17 is rotatably connected to the bracket 12, at least a portion of which is threaded. The fourth slider 171 is connected to the second adjustment lever 17 by the screw. When the second adjustment lever 17 is rotated, the position of the fourth slider 171 may be adjusted in the longitudinal direction of the second adjustment lever 17. In some embodiments, the second adjustment mechanism further includes a second handle 172, and the second handle 172 is coupled to the second adjustment lever 17 to facilitate a worker rotating the second adjustment lever 17 using the second handle 172.

Fig. 7 is a schematic structural view of the chucking mechanism 20. The clamping mechanism 20 is used for mounting the workpiece 40 on the jig 31, or clamping and moving the workpiece 40 with the screw 60 mounted thereon out of the turntable 30 from the jig 31. As shown in fig. 7, the gripping mechanism 20 includes a moving motor 211, a moving rail 21, a moving frame 22, an elevating section, and a gripper cylinder 24.

In the present embodiment, the moving rail 21 is provided near the turntable 30 in the horizontal direction. The moving frame 22 is a generally frame body, and is movably connected to the moving rail 21 by a slider. An output shaft of the moving motor 211 is connected to the moving frame 22 directly or through a transmission mechanism (e.g., a transmission chain, a transmission belt, etc.) for driving the moving frame 22 to reciprocate along the moving rail 21.

The lifting part comprises a lifting cylinder 23 and a lifting rod 231, the lifting cylinder 23 is arranged on the moving frame 22, and the lifting rod 231 is connected to an output shaft of the lifting cylinder 23 and is driven by the lifting cylinder 23 to move along the vertical direction. The clamping jaw cylinder 24 is connected to the lifting rod 231 for clamping the workpiece 40, so that the clamping jaw cylinder 24 can move up and down in the vertical direction under the driving of the lifting cylinder 23 and move along the moving guide rail 21 under the driving of the moving frame 22.

The operation of the above-described screw mounting apparatus is described in detail below.

First, the clamping mechanism 20 clamps the workpiece 40 above the jig 31, and the workpiece 40 falls into the jig 31 and is fixed to the turntable 30 by the jig 31 under the driving of the lifting cylinder 23. By way of example, in the present embodiment, the workpiece 40 has four mounting locations requiring mounting screws 60.

The carousel 30 is then rotated so that the workpiece 40 is positioned below the electric batch 10. The screw 60 slides into the guide hole 115 from the guide tube 112112 through the guide surface 114 by compressed air or gravity and is caught between the nipples 1111.

Then, the second air cylinder 16 moves the material guiding member 11 through the sleeve 113 to adjust the position of the material guiding member 11, and the first air cylinder 14 drives the first sliding seat 141 to move downward so that the screwdriver rod 131 collides with the head of the screw 60 until the screw 60 presses the clamping portion 1111 and protrudes from the clamping portion 1111 to collide with the installation site of the workpiece 40.

The motor 13 drives the screwdriver rod 131 to rotate to screw the screw 60 into the mounting location of the workpiece 40. At this time, the set of electric screwdriver 10 completes the operation of attaching the two screws 60.

Then, the rotary table 30 is rotated further so that the workpiece 40 is located at the mounting position of the next set of the electric screwdriver 10 to screw in two other screws 60 to the workpiece 40 again.

Finally, the turntable 30 continues to rotate below the clamping mechanism 20, and the clamping jaw air cylinder 24 moves along the moving guide rail 21 and moves downwards under the driving of the lifting air cylinder 23 to clamp the workpiece 40 and move the workpiece 40 out of the turntable 30.

Obviously, the above steps may be executed simultaneously or sequentially. During the operation of the above-mentioned electric screwdriver 10 and screw installation device for automatically introducing screws, the screw 60 can be clamped between the clamping members 111 through the guide hole 115 by the guide tube 112, so that the electric screwdriver rod 131 can abut against the screw 60 through the guide hole 115 and the electric screwdriver rod 131 presses the screw 60 when the screw 60 is aligned with the installation position, the screw 60 pushes away the clamping portion 1111 of the clamping member 111 and is screwed on the installation position of the workpiece 40, thereby automatically introducing the screw 60 and screwing the screw 60 into the workpiece 40, and improving the installation efficiency of the screw 60.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed components may be implemented in other manners. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units or means recited in the system claims may also be implemented by one and the same unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electric screwdriver capable of automatically leading in screws, which is characterized by comprising:

2. The electric screwdriver as recited in claim 1, wherein said clamping portion comprises a slot, said slot forming a through hole in communication with said guiding hole when said clamping portion is closed; the area of the cross section of the groove body is gradually reduced along the direction far away from the material guide hole.

3. The electric screwdriver as recited in claim 2, wherein the material guiding member further comprises a material guiding surface, the material guiding tube is connected to the material guiding hole through the material guiding surface, and the material guiding tube is connected to the material guiding member in an inclined manner, so that the screw can enter the material guiding hole along the material guiding surface under the action of self-weight.

4. The electric screwdriver as recited in claim 1, further comprising:

a support;

5. The electric screwdriver as recited in claim 4, further comprising:

6. The electric screwdriver as recited in claim 1, wherein said screwdriver shaft comprises a plurality of connecting rods, said connecting rods being hinged end to end.

7. The electric screwdriver as recited in claim 6, wherein said connecting rod comprises at least one telescopic rod, and the length of said electric screwdriver is adjusted by extending or shortening said telescopic rod.

8. A screw mounting apparatus, comprising:

the rotary table comprises a plurality of jigs for fixing workpieces;

an electric screwdriver according to any one of claims 1 to 7, adapted to mount a screw to a workpiece secured to said jig.

9. The screw mounting apparatus of claim 8, further comprising a clamping mechanism for mounting or transferring the workpiece to or from the carousel, the clamping mechanism comprising:

a moving guide rail;

a moving frame movably connected to the moving guide rail;

10. The screw installation apparatus of claim 8, wherein the electric screwdriver corresponds to an installation site of the workpiece, such that the electric screwdriver simultaneously tightens or loosens a plurality of the screws.