CN111390806A

CN111390806A - Full-automatic electric screwdriver of mechanical clutch

Info

Publication number: CN111390806A
Application number: CN202010340827.2A
Authority: CN
Inventors: 杨庆松; 张凯; 居筱云
Original assignee: Yangzhou Antiwear Hardfacing Technology Co ltd
Current assignee: Yangzhou Antiwear Hardfacing Technology Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-07-10

Abstract

The invention relates to the technical field of electric screwdrivers, and discloses a full-automatic electric screwdriver with a mechanical clutch, which comprises an electric screwdriver body, wherein a driving chain wheel is fixedly connected to the output end of the electric screwdriver body, a rectangular frame is fixedly sleeved on the outer wall of the electric screwdriver body, a plurality of circular through holes are formed in the lower surface of the rectangular frame, first rolling bearings are fixedly connected to the hole walls of the circular through holes, cylinders are fixedly connected to the inner walls of the first rolling bearings, through holes matched with the outer walls of the cylinders are formed in the upper surface of the rectangular frame, and driven chain wheels are fixedly sleeved on the outer walls of the cylinders. This full-automatic electric screwdriver of mechanical clutch possesses the efficiency that can effectively improve the full-automatic electric screwdriver of mechanical clutch and change screwdriver head to and improved the convenience that this electric screwdriver used, can make the inside maintenance process of electric screwdriver advantage such as simple convenient simultaneously.

Description

Full-automatic electric screwdriver of mechanical clutch

Technical Field

The invention relates to the technical field of electric screwdrivers, in particular to a full-automatic electric screwdriver with a mechanical clutch.

Background

The electric screwdriver is one of the electric tools for assembly operation, has the main function of screwing or unscrewing the screw through the forward and reverse rotation of a screwdriver head, realizes the fastening and the dismounting among threaded connection workpieces, and realizes the forward and reverse rotation switching and the screwing speed regulation through a forward and reverse rotation speed regulating switch.

The existing full-automatic electric screw driver with the mechanical clutch often needs to replace screwdriver heads with different specifications and models when in use, but corresponding screwdriver heads are often needed to be searched in a tool box in a laborious way in the replacement process, the consumed time is long, and the efficiency of replacing the screwdriver heads by the full-automatic electric screw driver with the mechanical clutch is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a full-automatic electric screwdriver with a mechanical clutch, which has the advantages of effectively improving the efficiency of replacing the screwdriver head of the full-automatic electric screwdriver with the mechanical clutch, improving the convenience of using the electric screwdriver, simultaneously enabling the internal maintenance process of the electric screwdriver to be simple and convenient, and the like, and solves the problems that the corresponding screwdriver head is frequently searched in a tool box in the replacement process of the full-automatic electric screwdriver with the mechanical clutch, the consumed time is long, and the efficiency of replacing the screwdriver head of the full-automatic electric screwdriver with the mechanical clutch is influenced.

(II) technical scheme

In order to effectively improve the efficiency of replacing the screwdriver head of the full-automatic electric screwdriver with the mechanical clutch, improve the use convenience of the electric screwdriver and simultaneously achieve the aim of enabling the internal maintenance process of the electric screwdriver to be simple and convenient, the invention provides the following technical scheme: a full-automatic electric screwdriver with a mechanical clutch comprises an electric screwdriver body, wherein a driving chain wheel is fixedly connected to the output end of the electric screwdriver body, a rectangular frame is fixedly sleeved on the outer wall of the electric screwdriver body, a plurality of circular through holes are formed in the lower surface of the rectangular frame, first rolling bearings are fixedly connected to the hole walls of the circular through holes, a cylinder is fixedly connected to the inner wall of each first rolling bearing, through holes matched with the outer wall of the cylinder are formed in the upper surface of the rectangular frame, a driven chain wheel is fixedly sleeved on the outer wall of each cylinder, a chain is sleeved on the outer wall of each driven chain wheel and the outer wall of the driving chain wheel together, an installation mechanism is fixedly connected to the inner wall of each cylinder, a rectangular through hole is formed in the outer wall of the electric screwdriver body, and a shell cover is movably connected to the hole wall, and the outer wall of the shell cover is fixedly connected with a limiting mechanism.

Preferably, installation mechanism includes the support ring with drum inner wall fixed connection, the recess of two symmetric distributions is seted up to the upper surface of support ring, the inner wall swing joint of support ring has screwdrivers blade, the lug of two symmetric distributions of screwdrivers blade's outer wall fixedly connected with, screwdrivers blade's outer wall activity has been cup jointed first spring, the both ends of first spring are connected with screwdrivers blade's outer wall and the lower fixed surface of support ring respectively, screwdrivers blade's the fixed cover in top outer wall has been cup jointed second antifriction bearing, the fixed cover of second antifriction bearing's outer wall has been cup jointed the thread piece, the top inner wall of drum has been seted up with thread piece matched with connecting thread.

Preferably, stop gear includes the U-shaped piece with cap outer wall fixed connection, two symmetric distribution's mounting hole is seted up to the outer wall of U-shaped piece, and the pore wall swing joint of mounting hole has L shape pole, spacing ring and second spring have been cup jointed in the pole wall activity of L shape pole, the outer wall of spacing ring and the outer wall fixed connection of electric screwdriver body, the fixed retaining ring that has cup jointed of the outer wall of L shape pole, the both ends of second spring respectively with the outer wall of retaining ring and the inner wall fixed connection of U-shaped piece.

Preferably, the specification models of the screwdriver bits are different.

Preferably, a U-shaped rod is fixedly connected to the upper surfaces of the plurality of screw blocks.

Preferably, the outer wall of the chain is movably connected with a plurality of U-shaped baffles, the lower surfaces of the U-shaped baffles are fixedly connected with supporting blocks, and the lower surfaces of the supporting blocks are fixedly connected with the inner wall of the rectangular frame.

Preferably, the outer wall of the electric screwdriver body is fixedly connected with an arc-shaped stop block, and the inner wall of the arc-shaped stop block is movably connected with the outer wall of the shell cover.

(III) advantageous effects

Compared with the prior art, the invention provides a full-automatic electric screwdriver with a mechanical clutch, which has the following beneficial effects:

1. the full-automatic electric screwdriver of the mechanical clutch is provided with the driving gear, the driven chain wheel, the cylinder and the support ring, when screwdriver heads of different types need to be replaced on the electric screwdriver body, the corresponding screwdriver head is selected firstly, then the thread block on the bolt screwdriver head is pressed, the thread block is connected with the connecting thread at the top end of the cylinder through the U-shaped rod, in the process, the convex block of the screwdriver head is clamped into the groove of the support ring to complete the installation of the bolt screwdriver head, then the electric screwdriver body is started to enable the driving chain wheel to rotate, the driving chain wheel enables the driven chain wheel to rotate through the chain, the driven chain wheel drives the cylinder to rotate, the cylinder enables the screwdriver head to rotate through the support ring and the convex block, the screwing and loosening work of screws by the screw head is further realized, and a worker does not need to search the needed screwdriver head difficultly from a tool box, labour saving and time saving if not when using this screwdriver head, unclamp the thread piece, this screwdriver head receives the effective rebound of elasticity of first spring this moment, avoids this screwdriver head to influence electric screwdriver normal work, and this mechanism can effectively improve the full-automatic electric screwdriver of mechanical clutch and change screwdriver head's efficiency to and improved the convenience that this electric screwdriver used.

2. This full-automatic electric screwdriver of mechanical type clutch, through being provided with the cap, L shape pole and spacing ring, when needs maintain electric screwdriver body is inside, through pulling L shape pole, make L shape pole break away from the spacing ring, make the second spring compression simultaneously, later take out the cap, utilize the inside maintenance of electric screwdriver body in the rectangle through-hole, thereby need not open the whole shell of electric screwdriver body, time saving and labor saving, this mechanism can make the inside maintenance process of electric screwdriver simple convenient.

Drawings

Fig. 1 is a schematic structural view of a full-automatic electric screwdriver with a mechanical clutch, which is provided by the invention;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

FIG. 3 is an enlarged view of the portion B of FIG. 1;

fig. 4 is an enlarged view of a portion C of fig. 1.

In the figure, 1 electric screwdriver body, 2 driving chain wheel, 3 rectangular frame, 4 arc-shaped stop blocks, 5 first rolling bearing, 6 cylinder, 7 driven chain wheel, 8 mounting mechanism, 81 supporting ring, 82 groove, 83 screwdriver head, 84 bump, 85 first spring, 86 thread block, 87 second rolling bearing, 9 limiting mechanism, 91U-shaped block, 92L-shaped rod, 93 limiting ring, 94 second spring, 95 stop ring, 10 chain, 11 shell cover, 12U-shaped rod, 13U-shaped baffle and 14 supporting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a full-automatic electric screwdriver with a mechanical clutch comprises an electric screwdriver body 1, a driving sprocket 2 fixedly connected to an output end of the electric screwdriver body 1, a rectangular frame 3 fixedly sleeved on an outer wall of the electric screwdriver body 1, a plurality of circular through holes formed on a lower surface of the rectangular frame 3, first rolling bearings 5 fixedly connected to hole walls of the circular through holes, a cylinder 6 fixedly connected to inner walls of the first rolling bearings 5, through holes matched with outer walls of the cylinder 6 formed on an upper surface of the rectangular frame 3, a driven sprocket 7 fixedly sleeved on outer walls of the cylinders 6, a chain 10 jointly sleeved on outer walls of the driven sprockets 7 and outer walls of the driving sprocket 2, a mounting mechanism 8 fixedly connected to inner walls of the cylinders 6, a rectangular through hole formed on an outer wall of the electric screwdriver body 1, and a housing cover 11 movably connected to a hole wall of the rectangular through hole, the outer wall of the shell cover 11 is fixedly connected with a limiting mechanism 9.

The mounting mechanism 8 comprises a support ring 81 fixedly connected with the inner wall of the cylinder 6, two symmetrically distributed grooves 82 are formed in the upper surface of the support ring 81, a screwdriver head 83 is movably connected to the inner wall of the support ring 81, two symmetrically distributed lugs 84 are fixedly connected to the outer wall of the screwdriver head 83, a first spring 85 is movably sleeved on the outer wall of the screwdriver head 83, two ends of the first spring 85 are respectively fixedly connected with the outer wall of the screwdriver head 83 and the lower surface of the support ring 81, a second rolling bearing 87 is fixedly sleeved on the outer wall of the top end of the

screwdriver head

83, 86 is fixedly sleeved on the outer wall of the second rolling bearing 87, connecting threads matched with the thread blocks 86 are formed in the inner wall of the top end of the cylinder 6, and the mechanism can effectively improve the efficiency of the full-automatic electric screw driver of the mechanical clutch for replacing the.

Stop gear 9 includes the U-shaped piece 91 with 11 outer wall fixed connection of cap, two symmetric distribution's mounting hole has been seted up to the outer wall of U-shaped piece 91, and the pore wall swing joint of mounting hole has L shape pole 92, spacing ring 93 and second spring 94 have been cup jointed in the pole wall activity of L shape pole 92, the outer wall of spacing ring 93 and the outer wall fixed connection of electric screwdriver body 1, L shape pole 92's outer wall is cup jointed and is kept off ring 95, the both ends of second spring 94 respectively with the outer wall that keeps off ring 95 and the inner wall fixed connection of U-shaped piece 91, this mechanism can make the inside maintenance process of electric screwdriver simple convenient.

The specification and model of the plurality of screwdriver heads 83 are different, and convenience of replacing the screwdriver heads 83 by the electric screwdriver can be improved.

The upper surfaces of the plurality of screw blocks 86 are fixedly connected with the U-shaped rod 12, and the screw blocks 86 can be conveniently rotated by the U-shaped rod 12.

The outer wall swing joint of chain 10 has a plurality of U-shaped baffles 13, and the lower fixed surface of U-shaped baffle 13 is connected with supporting shoe 14, and the lower surface of supporting shoe 14 and the inner wall fixed connection of rectangle frame 3, U-shaped baffle 13 and supporting shoe 14 can prevent that the chain from breaking away from drive sprocket 2 and driven sprocket 7.

The outer wall fixedly connected with arc dog 4 of electric screwdriver body 1, the inner wall of arc dog 4 and the outer wall swing joint of cap 11, arc dog 4 can increase the stability of 11 bottom connections of cap.

To sum up, the full-automatic electric screwdriver of the mechanical clutch, when the screwdriver heads 83 of different types need to be replaced for the electric screwdriver body 1, firstly, the corresponding screwdriver head 83 is selected, then, the thread block 86 on the bolt head 83 is pressed, and the thread block 86 is connected with the connecting thread at the top end of the cylinder 6 through the U-shaped rod 12, in the process, the bump 84 of the screwdriver head 83 is clamped into the groove 82 of the supporting ring 81, the installation of the bolt head 83 is completed, then, the electric screwdriver body 1 is started, the driving sprocket 2 is rotated by the electric screwdriver body 1, the driving sprocket 2 rotates the driven sprocket 7 through the chain 10, the driven sprocket 7 drives the cylinder 6 to rotate, the cylinder 6 rotates the screwdriver head 83 through the supporting ring 81 and the bump 84, thereby, the screwing and loosening of the screw by the screwdriver 83 is realized, and the worker does not need to search for the needed screwdriver head 83 from the tool box with great effort, time and labor are saved, if the screwdriver head 83 is not used when the rectangular screwdriver head 83 is effectively moved upwards by the elasticity of the first spring 85, the problem that the screwdriver head 83 is difficultly found for the needed screwdriver head 83 when the maintenance of the internal screw head 83 is not found is solved, the internal maintenance of the full-automatic electric screwdriver body 3592, the internal maintenance mechanism is improved, the maintenance of the full-automatic electric screwdriver body 1, the internal maintenance mechanism, the maintenance of the internal maintenance of the full-maintenance mechanism, the full-automatic electric screwdriver head 1 can be conveniently used, the full-maintenance mechanism, the maintenance of the full-automatic electric screwdriver head 8511, the maintenance mechanism, the maintenance of the maintenance mechanism, the maintenance mechanism.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a full-automatic electric screwdriver of mechanical type clutch, includes electric screwdriver body (1), its characterized in that: the output end of the electric screwdriver body (1) is fixedly connected with a driving chain wheel (2), the outer wall of the electric screwdriver body (1) is fixedly sleeved with a rectangular frame (3), the lower surface of the rectangular frame (3) is provided with a plurality of circular through holes, the hole walls of the circular through holes are fixedly connected with first rolling bearings (5), the inner walls of the first rolling bearings (5) are fixedly connected with a cylinder (6), the upper surface of the rectangular frame (3) is provided with through holes matched with the outer wall of the cylinder (6), the outer walls of the cylinders (6) are fixedly sleeved with driven chain wheels (7), the outer walls of the driven chain wheels (7) and the outer wall of the driving chain wheel (2) are jointly sleeved with chains (10), the inner walls of the cylinders (6) are fixedly connected with mounting mechanisms (8), and the outer wall of the electric screwdriver body (1) is provided with rectangular through holes, and the hole wall of the rectangular through hole is movably connected with a shell cover (11), and the outer wall of the shell cover (11) is fixedly connected with a limiting mechanism (9).

2. The full-automatic electric screwdriver with the mechanical clutch as claimed in claim 1, wherein: the mounting mechanism (8) comprises a support ring (81) fixedly connected with the inner wall of the cylinder (6), the upper surface of the supporting ring (81) is provided with two grooves (82) which are symmetrically distributed, the inner wall of the support ring (81) is movably connected with a screwdriver head (83), the outer wall of the screwdriver head (83) is fixedly connected with two symmetrically distributed convex blocks (84), the outer wall of the screwdriver head (83) is movably sleeved with a first spring (85), two ends of the first spring (85) are respectively fixedly connected with the outer wall of the screwdriver head (83) and the lower surface of the support ring (81), the outer wall of the top end of the screwdriver head (83) is fixedly sleeved with a second rolling bearing (87), the outer wall of the second rolling bearing (87) is fixedly sleeved with a thread block (86), and the inner wall of the top end of the cylinder (6) is provided with a connecting thread matched with the thread block (86).

3. The full-automatic electric screwdriver of the mechanical clutch according to claim 1, characterized in that the limiting mechanism (9) comprises a U-shaped block (91) fixedly connected with the outer wall of the shell cover (11), two symmetrically distributed mounting holes are formed in the outer wall of the U-shaped block (91), L-shaped rods (92) are movably connected to the hole walls of the mounting holes, a limiting ring (93) and a second spring (94) are movably sleeved on the rod wall of the L-shaped rods (92), the outer wall of the limiting ring (93) is fixedly connected with the outer wall of the electric screwdriver body (1), a baffle ring (95) is fixedly sleeved on the outer wall of the L-shaped rods (92), and two ends of the second spring (94) are fixedly connected with the outer wall of the baffle ring (95) and the inner wall of the U-shaped block (91) respectively.

4. The full-automatic electric screwdriver with the mechanical clutch as claimed in claim 2, wherein: the specification and model of the screwdriver heads (83) are different.

5. The full-automatic electric screwdriver with the mechanical clutch as claimed in claim 2, wherein: the upper surfaces of the thread blocks (86) are fixedly connected with U-shaped rods (12).

6. The full-automatic electric screwdriver with the mechanical clutch as claimed in claim 1, wherein: the outer wall of the chain (10) is movably connected with a plurality of U-shaped baffles (13), the lower surfaces of the U-shaped baffles (13) are fixedly connected with supporting blocks (14), and the lower surfaces of the supporting blocks (14) are fixedly connected with the inner wall of the rectangular frame (3).

7. The full-automatic electric screwdriver with the mechanical clutch as claimed in claim 1, wherein: the outer wall of the electric screwdriver body (1) is fixedly connected with an arc-shaped stop block (4), and the inner wall of the arc-shaped stop block (4) is movably connected with the outer wall of the shell cover (11).