CN113878339B

CN113878339B - Fastener screwing device

Info

Publication number: CN113878339B
Application number: CN202111124028.2A
Authority: CN
Inventors: 张庆坤
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2023-02-28
Anticipated expiration: 2041-09-24
Also published as: CN113878339A

Abstract

The invention discloses a fastener screwing device which comprises a fixed seat, a first mounting plate, a second mounting plate and a batch changing mechanism, wherein the first mounting plate is arranged on the fixed seat in a vertically sliding manner, the second mounting plate is arranged at the bottom of the fixed seat, the batch changing mechanism is horizontally and rotatably arranged on the second mounting plate, a plurality of accommodating holes which are distributed along the circumferential direction and are used for accommodating different types of batch heads are formed in the surface of the batch changing mechanism, and a batch taking rod which is used for being in butt joint with the batch heads in the accommodating holes which are rotated in place at present is connected to the bottom surface of the first mounting plate. So, when needing to tear open and trade the batch head, only need horizontal rotatory change to criticize the mechanism, will correspond the accommodation hole and rotate to machining-position department, vertical decline first mounting panel again for get batch pole move down to insert in the accommodation hole with criticize the head formation butt joint can. Compared with the prior art, the fastener screwing device disclosed by the invention can improve the replacement efficiency of the batch head and expand the application range of different types of fasteners.

Description

Fastener screwing device

Technical Field

The invention relates to the technical field of fasteners, in particular to a fastener screwing device.

Background

With the development of the electronic technology in China, more and more electronic devices have been widely used.

Servers are important components in electronic devices, and are devices that provide computing services. Since the server needs to respond to and process the service request, the server has the capability of bearing and guaranteeing the service. Servers can be classified as file servers, database servers, application servers, WEB servers, and the like, depending on the type of service provided.

In the big data era, a large number of IT devices are centrally located in a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each type of IT equipment is composed of various server components, such as a computing module, a memory module, a storage module, a chassis, and the like.

At present, the types of server assemblies are increasing, wherein the occupation ratio of precision devices and vulnerable devices is also increasing, which requires that related server assemblies need to be fixed and sealed in an assembly process. The assembly link of server subassembly extensively uses threaded connection's mode to fasten, for example the cooperation of fasteners such as screw, bolt and screw hole, nut, a large amount of screw assembly need artifical the completion, whether assembly process is reasonable, directly influences the quality and the production efficiency of product.

In the prior art, in order to improve the efficiency of screwing, an electric screwdriver is generally used. The screwdriver is an electric screwdriver, can automatically screw fasteners such as screws under the drive of electric power, and can output torque to quickly screw the fasteners by only aligning the screwdriver head at the front end of the screwdriver with a straight groove or a cross groove at the top end of the fasteners when in use. However, the bits on the conventional electric screwdriver are usually fixedly arranged and cannot be replaced, and the bits cannot be applied when different types of fasteners need to be screwed. The batch heads on part of the electric batch can be disassembled and replaced, but the disassembling and replacing operation is complicated, the process is long, the old batch heads are disassembled and then the new batch heads are required to be taken out again in the storage bin, and then the electric batch is repeatedly installed, so that the disassembling and replacing efficiency is low.

Therefore, how to improve the replacing efficiency of the batch head and expand the application range of different types of fasteners is a technical problem faced by those skilled in the art.

Disclosure of Invention

The invention aims to provide a fastener screwing device which can improve the disassembling and replacing efficiency of a batch head and expand the application range of different types of fasteners.

In order to solve the technical problem, the invention provides a fastener screwing device which comprises a fixed seat, a first mounting plate which is vertically slidably arranged on the fixed seat, a second mounting plate which is arranged at the bottom of the fixed seat, and a screwdriver replacing mechanism which is horizontally and rotatably arranged on the second mounting plate, wherein a plurality of accommodating holes which are distributed along the circumferential direction and are used for accommodating different types of screwdriver heads are formed in the surface of the screwdriver replacing mechanism, and a screwdriver taking rod which is used for being in butt joint with the screwdriver heads in the accommodating holes which are currently rotated in place is connected to the bottom surface of the first mounting plate.

Preferably, the surface of fixing base is provided with along vertical extension's slide rail, the top of fixing base is provided with first driver part, first mounting panel install in the slide rail, just first driver part's output with first mounting panel links to each other.

Preferably, the first mounting plate is provided with a second driving part which is connected with the top end of the batch taking rod and is used for driving the batch taking rod to rotate, and the bottom end of the batch taking rod is connected with a clamping head which is used for being in clamping fit with the top end preformed groove of each batch head.

Preferably, the batcher changing mechanism includes a rotating shaft disposed on the surface of the second mounting plate, and a rotating disc rotatably sleeved on the circumferential surface of the rotating shaft, and each accommodating hole is formed in the surface of the rotating disc along the circumferential direction.

Preferably, a magnetic ring for unidirectional limiting and adsorbing the batch head is convexly arranged on the inner wall of each accommodating hole.

Preferably, but the carousel axial slip ground cover is located on the periphery of pivot, just the carousel has the inner chamber, be provided with in the inner chamber with pivot fixed connection's interior crown plate, be provided with on the interior crown plate along vertical extension's joint post, the wall of inner chamber seted up a plurality of along circumferential direction distribution, be used for with the joint groove of joint post cooperation location, and each the joint groove respectively with each the accommodation hole corresponds.

Preferably, a first return spring is connected between the inner top wall of the inner cavity and the surface of the inner ring plate.

Preferably, the clamping columns are inserted into the inner ring plate in a vertically sliding manner, and each clamping groove is formed in the inner bottom wall of the inner cavity; the top of joint post is provided with the baffle, just the bottom surface of baffle with be connected with second reset spring between the surface of interior crown plate.

Preferably, the fastener feeding mechanism is connected to the second mounting plate and used for feeding fasteners, a passing hole vertically aligned with the accommodating hole in place in the current rotating mode is formed in the top end of the feeding mechanism, a feeding hole used for receiving the fasteners to be machined at present is further formed in the top end of the feeding mechanism, and the feeding hole is communicated with the passing hole.

Preferably, the bottom outside of feed mechanism is provided with a plurality of and can encircle the wane that surrounds that forms the discharge opening along circumference elasticity harmomegathus and circumference, the discharge opening is used for the location clamping fastener.

The invention provides a fastener screwing device which mainly comprises a fixed seat, a first mounting plate, a second mounting plate, a screwdriver replacing mechanism, a containing hole and a screwdriver taking rod. Wherein, the fixing base is the major structure, generally along vertical distribution. The first mounting plate is arranged on the fixed seat and can vertically lift and slide on the fixed seat. The second mounting panel sets up in the bottom position of fixing base, mainly used installation reprints mechanism (and subsequent feed mechanism). The batch changing mechanism is arranged on the second mounting plate and can perform horizontal rotating motion on the surface of the second mounting plate. The accommodating holes are formed in the surface of the screwdriver replacing mechanism and are simultaneously provided with a plurality of accommodating holes, the accommodating holes are distributed along the circumferential direction of the screwdriver replacing mechanism, and importantly, different types of screwdriver heads are accommodated in the accommodating holes respectively. The batch taking rod is connected to the bottom surface of the first mounting plate and is mainly used for synchronously moving downwards into the batch changing mechanism along with the vertical sliding of the first mounting plate on the fixing seat, extending into the accommodating hole which is arranged on the batch changing mechanism and rotates in place at present, and then being in butt joint with the batch head temporarily stored in the accommodating hole to finish the batch head changing operation. Therefore, when the screwdriver head needs to be replaced, the screwdriver head screwing device provided by the invention only needs to horizontally rotate the screwdriver mechanism to rotate the corresponding accommodating hole to the processing station, and then vertically descends the first mounting plate, so that the screwdriver rod is downwards moved to be inserted into the accommodating hole to be in butt joint with the screwdriver head. When the old batch head needs to be disassembled, the old batch head is placed into the corresponding accommodating hole again only by the batch taking rod, and the tail end of the batch taking rod is separated from the batch head for butt joint. Compared with the prior art, the invention can improve the disassembling and replacing efficiency of the batch head and expand the application range of different types of fasteners.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a half sectional view showing a detailed structure of the batching mechanism.

Fig. 3 is an enlarged view of the structure of the circle a shown in fig. 2.

Fig. 4 is an enlarged view of the structure of circle B shown in fig. 2.

Fig. 5 is a specific structural schematic diagram of the feeding mechanism.

Wherein, in fig. 1-5:

the automatic batch taking device comprises a fixed seat-1, a first mounting plate-2, a second mounting plate-3, a batch changing mechanism-4, a batch head-5, a batch taking rod-6, a slide rail-7, a first driving part-8, a second driving part-9 and a feeding mechanism-10;

the device comprises a containing hole-41, a rotating shaft-42, a rotating disc-43, a magnetic ring-44, an inner ring plate-45, a clamping column-46, a first return spring-47, a baffle-48, a second return spring-49, a clamping head-61, a through hole-101, a feeding hole-102, a discharging hole-103, a surrounding warping plate-104, a feeding pipe-105, a limiting groove-106, a rotating column-107 and a third return spring-108;

a positioning column-421, an inner cavity-431 and a clamping groove-432.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

In one embodiment of the present invention, the fastener screwing device mainly comprises a fixed seat 1, a first mounting plate 2, a second mounting plate 3, a screwdriver 4, a receiving hole 41 and a screwdriver rod 6.

Wherein, the fixing base 1 is a main body structure and is generally distributed along the vertical direction. The first mounting plate 2 is arranged on the fixing seat 1 and can vertically lift and slide on the fixing seat 1. The second mounting plate 3 is arranged at the bottom of the fixing seat 1 and is mainly used for mounting the batch replacing mechanism 4 (and the subsequent feeding mechanism 10).

The batching mechanism 4 is arranged on the second mounting plate 3 and can perform a horizontal rotary movement on the surface of the second mounting plate 3. The accommodating holes 41 are opened on the surface of the batch changing mechanism 4, and are provided in plurality, and the accommodating holes 41 are distributed along the circumferential direction of the batch changing mechanism 4, and it is important that different types of the batch heads 5 are accommodated in the accommodating holes 41, respectively.

The batch taking rod 6 is connected to the bottom surface of the first mounting plate 2, and is mainly used for synchronously moving downwards into the batch replacing mechanism 4 along with the vertical sliding of the first mounting plate 2 on the fixing seat 1, extending into the accommodating hole 41 which is arranged on the batch replacing mechanism 4 and rotates in place at present, and further forming butt joint with the batch head 5 temporarily stored in the accommodating hole 41, so that the replacement operation of the batch head 5 is completed.

Thus, when the screwdriver bit 5 needs to be removed and replaced, the fastening piece screwing device provided by the embodiment only needs to horizontally rotate the screwdriver mechanism 4 to rotate the corresponding accommodating hole 41 to the processing station, and then vertically descend the first mounting plate 2, so that the screwdriver rod 6 is downwards moved to be inserted into the accommodating hole 41 to be in butt joint with the screwdriver bit 5. When the old batch head 5 needs to be detached, the old batch head 5 is placed into the corresponding accommodating hole 41 again through the batch taking rod 6, so that the tail end of the batch taking rod 6 is separated from the butt joint with the batch head 5.

Compare in prior art, this embodiment can improve the efficiency of tearing open and changing of wholesale head 5, expands the application scope to different grade type fasteners.

In order to facilitate the vertical sliding of the first mounting plate 2 on the fixing base 1, a first driving component 8 is additionally arranged in the embodiment. Specifically, the first driving component 8 is disposed at a top position of the fixed seat 1, and an output end of the first driving component 8 is connected to the first mounting plate 2. In general, the first driving member 8 may be embodied by a linear driving motor, a hydraulic driving cylinder, a pneumatic driving cylinder, etc., and the output shaft or the end of the telescopic rod is connected to the surface of the first mounting plate 2.

Further, for improving the vertical sliding stability and the accuracy of first mounting panel 2 on fixing base 1, slide rail 7 has been add in this embodiment. Specifically, the sliding rail 7 is disposed on the surface of the fixing base 1 and distributed along the length direction (vertical direction) of the fixing base 1. Meanwhile, the first mounting plate 2 is disposed in the slide rail 7 and can slide along the longitudinal direction of the slide rail 7. So set up, through the drive of first driver part 8 to first mounting panel 2 to and the direction of slide rail 7 to first mounting panel 2, can guarantee the stability and the accuracy nature of the vertical motion of first mounting panel 2.

In order to facilitate the rotational movement of the batch taking bar 6, a second drive member 9 is added in this embodiment. Specifically, the second driving component 9 is disposed on the first mounting plate 2, and is generally disposed on the surface of the second driving component 9, and the output end of the second driving component 9 is connected to the top end of the batching rod 6, and is mainly used for driving the batching rod 6 to rotate. In general, a rotating electric machine or the like can be specifically used as the second driving member 9.

Further, in order to facilitate the butt joint between the batch taking rod 6 and the batch head 5, a clamping head 61 is connected to the bottom end of the batch taking rod 6 in the embodiment. Specifically, the clamping head 61 is mainly used for forming a clamping fit (such as interference) with a reserved groove at the top end of each batch head 5, so as to form a stable butt joint. Generally, the shape of the clamping head 61 is adapted to the shape of the preformed groove at the top end of the batch head 5, for example, the preformed groove at the top end of the batch head 5 is generally an inner hexagonal groove, and the clamping head 61 is generally a hexagonal prism.

As shown in fig. 2, fig. 2 is a half sectional view showing a specific structure of the batch-changing mechanism 4.

In a preferred embodiment with respect to the reloading mechanism 4, the reloading mechanism 4 mainly comprises a rotary shaft 42 and a rotary disc 43. Wherein, the rotating shaft 42 is arranged on the surface of the second mounting plate 3 and extends for a certain height along the vertical direction. The turntable 43 is sleeved on the circumferential surface of the rotating shaft 42 and can rotate around the rotating shaft 42. Meanwhile, the respective accommodation holes 41 are opened specifically on the surface of the dial 43, and the respective accommodation holes 41 are distributed in the circumferential direction of the dial 43. In general, the individual receiving openings 41 are distributed in particular in the outer circumferential region of the rotary disk 43. With this arrangement, when the accommodating hole 41 in the station state needs to be adjusted, the operator only needs to rotate the turntable 43.

As shown in fig. 3, fig. 3 is an enlarged view of the structure of the circle a shown in fig. 2.

Further, in order to improve the stability of the accommodating hole 41 for accommodating the batch head 5 and prevent accidental dropping or loss, a magnetic ring 44 is added in the present embodiment. Specifically, the magnetic ring 44 is provided on the inner wall of each receiving hole 41 and protrudes a certain distance from the inner wall surface of the receiving hole 41, and has magnetism to attract the bit 5 of the metal material by magnetic force. Generally, the bits 5 are mainly cylindrical and temporarily stored in the lower half of the receiving hole 41, the magnetic ring 44 is disposed in the upper half of the receiving hole 41, and the top of the bits 5 is attached to the bottom of the magnetic ring 44. Meanwhile, the top end of the batch head 5 abuts against the bottom surface of the magnetic ring 44, and the magnetic ring 44 is fixed on the inner wall of the accommodating hole 41, so the magnetic ring 44 also has a vertical (axial) limiting effect on the batch head 5, that is, the batch head 5 can only move vertically downwards after being in butt joint with the batch taking rod 6, and cannot move vertically upwards. When the batch head 5 is detached and replaced, the old batch head 5 is abutted and adsorbed on the bottom surface of the magnetic ring 44 by utilizing the abutting and one-way limiting effect of the magnetic ring 44 on the batch head 5, so that the old batch head 5 is prevented from rising to be separated from the accommodating hole 41 along with the rising motion of the batch taking rod 6.

In addition, considering that when a new batch head 5 is removed and replaced, an operator needs to rotate the turntable 43 to enable the corresponding accommodating hole 41 to be located at a position in a working position state right opposite to the batch taking rod 6, and in order to ensure that the batch taking rod 6 can be accurately inserted into the accommodating hole 41 to be in butt joint with the batch head 5 when moving vertically downwards, the inner cavity 431, the inner ring plate 45, the clamping column 46 and the clamping groove 432 are additionally arranged in the embodiment, and meanwhile, the turntable 43 not only can rotate around the rotating shaft 42, but also can axially slide on the circumferential surface of the rotating shaft 42.

As shown in fig. 4, fig. 4 is an enlarged view of the structure of the circle B shown in fig. 2.

The cavity 431 is formed in the turntable 43 and is generally located in the inner center region of the turntable 43. The inner ring plate 45 is disposed within the interior 431, is generally annular, and is fixedly attached to the shaft 42. The engagement posts 46 are provided on the inner ring plate 45 and protrude from the surface (or bottom surface) of the inner ring plate 45, and extend in the vertical direction as a whole. The clamping groove 432 is formed in the wall surface of the inner cavity 431 and is mainly used for forming clamping fit with the end portion of the clamping column 46, so that the rotary positioning of the rotary disc 43 is realized. Moreover, the plurality of the clamping grooves 432 are provided at the same time, the specific number of the clamping grooves 432 is equal to the number of the accommodating holes 41, the clamping grooves 432 are distributed on the wall surface of the inner cavity 431 along the circumferential direction of the wall surface, and the distribution position of each clamping groove 432 in the circumferential direction corresponds to the distribution position of each accommodating hole 41 on the surface of the rotating disc 43, namely, one clamping groove 432 corresponds to one accommodating hole 41. With such arrangement, when an operator needs to rotate the turntable 43, the turntable 43 needs to be moved vertically, so that the turntable 43 can be normally rotated only after the clamping column 46 and the clamping groove 432 are separated from clamping; in the process of rotating the turntable 43, when the accommodating hole 41 is rotated to the proper position, the corresponding clamping groove 432 is also rotated to the proper position, and the operator can precisely fine-tune the rotation angle of the turntable 43 by forming the clamping groove 432 and the clamping column 46 into a clamping fit.

Further, in view of the fact that the clamping column 46 and the clamping groove 432 need to be clamped again when the turntable 43 is rotated to the right position after being moved vertically, a first return spring 47 is additionally arranged in the embodiment. Specifically, the first return spring 47 is connected between the inner top wall of the inner cavity 431 and the surface of the inner ring plate 45, and the elastic deformation direction thereof is vertical. So configured, when the operator vertically presses or lifts the chuck, the first return spring 47 will be compressed or extended at the same time, thereby enabling the turntable 43 to be vertically returned to the initial position after being rotated into position by its elastic force.

In addition, in order to accurately position the connection position between the turntable 43 and the rotating shaft 42 and ensure that the turntable 43 smoothly realizes vertical sliding and rotating motion on the rotating shaft 42, the positioning column 421 is erected on the surface of the rotating shaft 42 in the embodiment. Specifically, an inner circular hole is formed in a center area of the surface of the rotating plate 43, and the inner circular hole is sleeved on the outer circular surface of the positioning column 421, and meanwhile, a rotating hole is formed in a center area of the bottom surface of the rotating plate 43, and the rotating hole is sleeved on the outer circular surface of the rotating shaft 42.

In a preferred embodiment with respect to the snap-in posts 46, the snap-in posts 46 are vertically slidably inserted into the inner ring plate 45, and have bottom ends projecting above the bottom surface of the inner ring plate 45 and top ends projecting above the surface of the inner ring plate 45. Accordingly, each catching groove 432 is formed on the inner bottom wall surface of the inner cavity 431 for catching the bottom end of the catching column 46. So configured, the operator only needs to press the turntable 43 vertically to disengage each of the clamping slots 432 from the clamping posts 46. Meanwhile, a baffle plate 48 is further arranged at the top end of the clamping column 46, and a second return spring 49 is connected between the bottom surface of the baffle plate 48 and the surface of the inner ring plate 45. So set up, after carousel 43 was pressed the certain distance by the vertical, the whole joint groove 432 that breaks away from of joint post 46, but the bottom of joint post 46 still is in the within range of joint groove 432, thereby when carousel 43 is rotatory, every through certain circumference angle, the bottom of joint post 46 will form butt and collision with the cell wall of each joint groove 432, and then under the effect that is the cell wall of the joint groove 432 on inclined plane, with joint post 46 jack-up certain distance upwards, the operation workman can obtain the feedback according to this point and feel, definitely knows the rotation angle of carousel 43. Of course, after the catching column 46 is jacked up, it will be restored by the elastic force of the second restoring spring 49.

As shown in fig. 5, fig. 5 is a schematic structural diagram of the feeding mechanism.

In another embodiment of the present invention, the fastener driving device further comprises a feeding mechanism 10 in addition to the fixed base 1, the first mounting plate 2, the second mounting plate 3, the screwdriver 4, the receiving hole 41 and the screwdriver rod 6. Specifically, the feeding mechanism 10 is connected to the second mounting plate 3, and is generally located on the bottom surface of the second mounting plate 3, and is mainly used for feeding fasteners, such as screws, bolts, and the like, so as to cooperate with the batch taking rod 6 to achieve screwing operation of the fasteners.

The top end of the feeding mechanism 10 is provided with a passing hole 101, and the passing hole 101 is mainly used for forming vertical alignment with the accommodating hole 41 which is currently rotated in place, so that the batch taking rod 6 is continuously driven by the vertical sliding motion of the first mounting plate 2 to take out the fastener downwards after being butted with the batch head 5 in the accommodating hole 41. Meanwhile, a feeding hole 102 is further formed at the top end of the feeding mechanism 10, the feeding hole 102 is mainly used for feeding fasteners, and the feeding hole 102 is connected with the passing hole 101 in the feeding mechanism 10 into a whole. So arranged, the fastener can be firstly slid in from the feeding hole 102, then the batch taking rod 6 and the batch head 5 can pass through the passing hole 101, and finally the front end of the batch head 5 is connected with the fastener.

Further, in consideration of the fact that screws of different types or sizes are poor in stability in the process of screwing the screws in the screw tightening device in the prior art, and the situation that the small screws slip from the inside of the screw tightening device easily occurs in the process of replacing the small screws from the large screws, the encircling seesaw 104 is additionally arranged in the embodiment. Specifically, this surround wane 104 sets up in the bottom outside position of feed mechanism 10, is provided with a plurality ofly simultaneously to along circumference distribution, each surround wane 104 can surround in circumference and form discharge opening 103, still all has elasticity, can form circumference elasticity harmomegathus, thereby the aperture of adjustment discharge opening 103. The discharge hole 103 is mainly used for positioning and clamping a fastener, so that the fastener is suspended and fixed at the discharge hole 103, and when the batch taking rod 6 and the batch head 5 vertically move downwards into the discharge hole 103, the encircling warped plates 104 are circumferentially elastically expanded, the aperture of the discharge hole 103 is enlarged, the fastener is ejected out of the discharge hole 103, and screwing operation is completed at a preset mounting position.

Generally, in order to realize circumferential elastic expansion and contraction of the surround rocker 104, a limit groove 106, a rotating column 107 and a third return spring 108 are additionally arranged in the embodiment. The limiting groove 106 is formed in the outer wall of the feeding mechanism 10, the rotating column 107 is disposed on the side walls of the two sides of the enclosure rocker 104, and the rotating column 107 is rotatably inserted into the limiting groove 106, so that the enclosure rocker 104 is connected to the feeding mechanism 10 in a swinging manner. Meanwhile, the third return spring 108 is connected between the top end of the encircled wane 104 and the outer wall of the feeding mechanism 10, when the encircled wane 104 swings outwards, the aperture of the discharge hole 103 formed by encircling the bottom of the encircled wane 104 becomes large, and when the batch taking rod 6 and the batch head 5 vertically ascend to be separated from the discharge hole 103, the encircled wane 104 swings inwards under the elastic action of the third return spring 108, so that the aperture of the discharge hole 103 formed by encircling the bottom of the encircled wane 104 is reduced again, and the next feeding fastener is clamped.

In addition, in order to extend the feeding distance of the fastener, the present embodiment is inserted with a feeding pipe 105 at the orifice of the feeding hole 102.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The fastener screwing device is characterized by comprising a fixed seat (1), a first mounting plate (2) which is vertically slidably arranged on the fixed seat (1), a second mounting plate (3) which is arranged at the bottom of the fixed seat (1), and a screwdriver changing mechanism (4) which is horizontally and rotatably arranged on the second mounting plate (3), wherein a plurality of accommodating holes (41) which are circumferentially distributed and used for accommodating different types of screwdriver heads (5) are formed in the surface of the screwdriver changing mechanism (4), and the bottom surface of the first mounting plate (2) is connected with a screwdriver taking rod (6) which is used for being in butt joint with the screwdriver heads (5) in the accommodating holes (41) which are currently rotated to the position;

the batch changing mechanism (4) comprises a rotating shaft (42) arranged on the surface of the second mounting plate (3) and a rotating disc (43) rotatably sleeved on the circumferential surface of the rotating shaft (42), and each accommodating hole (41) is formed in the surface of the rotating disc (43) along the circumferential direction;

the rotary table (43) is axially slidably sleeved on the circumferential surface of the rotating shaft (42), the rotary table (43) is provided with an inner cavity (431), an inner ring plate (45) fixedly connected with the rotating shaft (42) is arranged in the inner cavity (431), clamping columns (46) extending vertically are arranged on the inner ring plate (45), a plurality of clamping grooves (432) which are distributed along the circumferential direction and are used for being matched and positioned with the clamping columns (46) are formed in the wall surface of the inner cavity (431), and each clamping groove (432) corresponds to each accommodating hole (41) respectively;

the clamping columns (46) can be vertically and slidably inserted into the inner ring plate (45), and the clamping grooves (432) are formed in the inner bottom wall of the inner cavity (431); a baffle plate (48) is arranged at the top end of the clamping column (46), and a second return spring (49) is connected between the bottom surface of the baffle plate (48) and the surface of the inner ring plate (45);

when the rotary plate (43) is vertically pressed for a certain distance, the clamping columns (46) are integrally separated from the clamping grooves (432) and the bottom ends of the clamping columns are still located in the clamping grooves (432), when the rotary plate (43) rotates, the bottom ends of the clamping columns (46) are abutted to the groove walls of the clamping grooves (432) every time a certain circumferential angle passes, and the clamping columns (46) are jacked up for a certain distance under the action of the groove walls of the clamping grooves (432) which are inclined planes, so that an operator can obtain a feedback feeling to know the rotating angle of the rotary plate (43).

2. Fastener driving device according to claim 1, wherein the surface of the fixed base (1) is provided with a sliding rail (7) extending in a vertical direction, the top of the fixed base (1) is provided with a first driving member (8), the first mounting plate (2) is mounted in the sliding rail (7), and the output end of the first driving member (8) is connected with the first mounting plate (2).

3. The fastener screwing device according to claim 2, wherein the first mounting plate (2) is provided with a second driving part (9) which is connected with the top end of the batch taking rod (6) and is used for driving the batch taking rod to rotate, and the bottom end of the batch taking rod (6) is connected with a clamping head (61) which is used for clamping and matching with a reserved groove at the top end of each batch head (5).

4. Fastener driving device according to claim 1, characterized in that the inner wall of each receiving hole (41) is provided protrudingly with a magnetic ring (44) for one-way retention and attraction of the bit (5).

5. The fastener driver apparatus of claim 1, wherein a first return spring (47) is connected between an inner top wall of said inner cavity (431) and a surface of said inner ring plate (45).

6. The fastener driving device according to any one of claims 1 to 5, further comprising a feeding mechanism (10) connected to the second mounting plate (3) for feeding fasteners, wherein a top end of the feeding mechanism (10) is provided with a through hole (101) for vertically aligning with the accommodating hole (41) which is currently rotated to a position, and a top end of the feeding mechanism (10) is further provided with a feeding hole (102) for receiving a currently processed fastener, and the feeding hole (102) is communicated with the through hole (101).

7. The fastener screwing device according to claim 6, wherein a plurality of encircling warped plates (104) capable of elastically expanding and contracting along the circumferential direction and forming the discharge hole (103) in an encircling manner along the circumferential direction are arranged outside the bottom of the feeding mechanism (10), and the discharge hole (103) is used for positioning and clamping the fastener.