CN115416897A

CN115416897A - Electric wire binding screwdriver

Info

Publication number: CN115416897A
Application number: CN202211218524.9A
Authority: CN
Inventors: 杨程; 唐久久
Original assignee: Xi'an Tuweigu Innovation Technology Co ltd
Current assignee: Xi'an Tuweigu Innovation Technology Co ltd
Priority date: 2022-10-06
Filing date: 2022-10-06
Publication date: 2022-12-02

Abstract

The utility model provides an electronic bundling screwdriver, includes main part, replacement batch head, pivot portion, drive module, power take off switch module, control module, power module, be provided with batch head installation department on the main part, the replacement batch head has a plurality of and includes a card line batch head at least, the first mountable of replacement batch is in batch on the first installation department, be provided with wire winding structure in the pivot portion, electronic bundling screwdriver includes electronic bundling machine mode and electric screwdriver mode, by power take off switch module switches. The invention relates to the field of mechanical tools, which can be used as an electric screwdriver with replaceable bits, has the function of electrically assisting high-strength binding and binding of metal wires, can ensure that the binding effect is simple and attractive, and does not have obvious hand-tying or free end protrusion residues of iron wires which are easy to hang on clothes.

Description

Electric wire binding screwdriver

Technical Field

The invention relates to the field of mechanical tools, in particular to an electric wire binding screwdriver.

Background

Due to their good toughness, elastoplasticity and tensile strength, wire has been the second choice for high strength strapping, with the most typical wire used for strapping being iron wire. The wire used for bundling is usually used for bundling reinforcement bars in construction sites, and is only used for roughly fixing the reinforcement bars and is not usually required to bear large stress and bundling force. For the binding of thicker wires, such as wires with a diameter greater than 1.5mm, which are subjected to high loads and have high binding stress, the binding hooks are no longer suitable, and binding are usually performed by using pliers or wire cutters.

The principle of binding and binding whether the binding hook is a binding hook or a vice or a wire cutter is that the free ends of two or more iron wires are twisted to be twisted in a twist shape, the part of the iron wires which are not wound becomes shorter gradually along with the winding, and the process of shortening the part of the iron wires which are not wound is the binding process. Although the binding method is very common, the binding effect is not good, and the binding method is mainly characterized in the following two aspects:

(1) Cannot be strapped tightly enough and can provide limited strapping stress. The principle of the binding method is that the free end of the iron wire is twisted in a twist shape to shorten the part which is not twisted, but the stress required by deformation is increased along with the winding, the difficulty of continuously twisting the iron wire in the twist shape is increased by using a tool which works by friction force, such as a vice, and even if the free end of the iron wire can be continuously twisted in the twist shape, the result is that the part which is not twisted in the iron wire can not be continuously shortened. This is why the strapping method cannot provide sufficient tightness and provides limited strapping stress. For application scenes in which very tight binding is needed and the binding stress is very large, the binding method is not applicable;

(2) After the twisted wire is wound and tied, a twisted end part is left, so that the twisted wire is not beautiful and is difficult to get in the way, the twisted wire is easy to prick hands or bodies of users and hang clothes of the users, even if the twisted wire is cut short, the twisted wire cannot be completely avoided, and if the twisted wire is cut short, the tied wire is easy to scatter and lose efficacy due to insufficient stress at the end part connecting part.

In order to solve the above problems, the inventors have previously filed a plurality of patent applications including a utility model patent with a patent name of "a storable screwdriver wire binder", application No. 202221256259.9, and a utility model patent with a patent name of "a nested storage screwdriver wire binder", application No. 202221257782.3, to the national patent office. The technical scheme that above-mentioned two patent applications recorded can enough provide enough big tying up prestressing force, can make again to tie up the effect succinctly pleasing to the eye and can not have obvious pricking hand or hang the protruding residue in iron wire free end of clothes easily, has the function of tying up the line ware and can replacing the screwdriver of criticizing the head concurrently moreover simultaneously.

However, both of the above-mentioned patent applications are manual tools, and in order to make the operation of wire-binding and screwing more efficient and labor-saving, the present invention is directed to developing an electric wire-binding screwdriver based on the above-mentioned two patent applications.

Disclosure of Invention

The invention aims to provide an electric wire binding screwdriver, which has the appearance basically consistent with that of a traditional electric screwdriver with replaceable screwdriver heads, namely, a screwdriver body is matched with a plurality of replaceable screwdriver heads, but the electric wire binding screwdriver has the functions of a common electric screwdriver and also has the function of electrically assisting metal wires to bind and tighten. The invention has an electric wire bundling device mode and an electric screw driver mode, the two modes adopt the same set of power for driving, and the two modes are switched by mechanical clutch. When the electric screwdriver is in an electric screwdriver mode, the screwdriver bits with different specifications are replaced by the screwdriver bits, so that the electric screwdriver can be used for electrically screwing or unscrewing screws of various models; when the electric wire bundling device is in a mode of being used as an auxiliary metal wire bundling and binding electric wire bundling device, only a wire clamping batch head needs to be replaced, and a rotating shaft part for bundling is installed, so that the electric wire bundling device for high-strength bundling of metal wires is formed.

In order to realize the purpose of the invention, the corresponding technical scheme is as follows:

the utility model provides an electronic bundle line screwdriver, can assist when tying up other objects with the wire bundle and provide sufficient tightening force and make the effect of tying up neatly pleasing to the eye, criticize head, pivot portion, drive module, power take off switch module, control module, power module including main part, replacement, be provided with on the main part and criticize first installation department, the replacement is criticized the head and is had a plurality of and criticize the head including a card line at least, the first mountable of replacement is criticized on the first installation department, be provided with the wire winding structure in the pivot portion. Besides the wire clamping batch head, a plurality of replacing batch heads can be provided, and screws with different specifications can be screwed after different replacing batch heads are arranged on the batch head mounting part.

The electric wire binding screwdriver comprises an electric wire binding device mode and an electric screwdriver mode, the two modes are switched by the power output switching module, and the power output switching module plays the role of mechanical clutch.

Under the electronic wire bundling machine mode, pivot portion by the drive module drive is rotatory, replace and criticize first installation department and receive power take off switching module's restraint does not take place to rotate, works as the one end of wire is retrained, and the other end is put during the wire winding structure, along with the rotation of pivot portion, the wire winding structure can be right the wire produces the coiling effort, makes the wire winding in pivot portion to lead to the wire part of flare-outing shortens along with winding going on length gradually, realizes making the wire part of flare-outing produce the effect of tensioning.

In the electric screwdriver mode, the screwdriver head mounting part is driven by the driving module to rotate around the axis of the screwdriver head mounting part relative to the main body part, so that the replacement screwdriver head is driven to rotate.

The wire clamping batch head is used for clamping the metal wire when being bundled and restraining the radial freedom degree of the clamped part of the metal wire, the control module is used for controlling the running state of the driving module, and the power supply module is used for supplying power. The driving module comprises a first output shaft, and the running state of the driving module comprises positive rotation, negative rotation, stalling, an azimuth angle of the first output shaft during stalling, a rotating speed of the first output shaft, a maximum torque value allowed to be output by the first output shaft at present and the like.

Preferably, the main body part is of a straight handle structure, and the bit mounting part is located at the bottom end of the main body part.

Preferably, the main body part is of a gun type structure and comprises a holding part, a gun body part and a gun muzzle end, and the batch head mounting part is located at the gun muzzle end of the main body part.

Further, the head of the wire clamping batch head is provided with a wire clamping groove, the wire clamping groove is used for clamping the metal wire during bundling, and preferably, the wire clamping groove is an arc-shaped groove. Preferably, the diameter of the circular arc-shaped groove is larger than or equal to the diameter of the metal wire. The diameter of the circular arc-shaped groove is larger than or equal to that of the metal wire, so that the wire clamping groove can clamp a single metal wire during wire bundling operation. Preferably, when the wire clamping batch head is arranged in the batch head mounting part in a recommended posture, the axis of the circular arc-shaped groove is parallel to the axis of rotation of the rotating shaft part. Taking the screwdriver head mounting part as an inner hexagonal hole and the replacement screwdriver head mounting end as an outer hexagonal column as an example, the hexagonal mounting has a mounting direction, and the replacement screwdriver head is mounted on the screwdriver head mounting part corresponding to different mounting postures when rotating by 60 degrees around the axis of the replacement screwdriver head, namely the recommended posture, namely the mounting posture that the axis of the arc-shaped groove is parallel to the rotation axis of the rotation shaft part. When the wire bundling machine is used as an electric wire bundling machine under the posture, the deformation and stress working conditions of the metal wire are optimal, and the metal wire can be prevented from being twisted when being bundled and bound tightly.

Preferably, the wire clamping batch head has multiple specifications, and wire clamping grooves of the wire clamping batch head of each specification are correspondingly matched with metal wires in different diameter ranges.

Preferably, the rotating shaft part and the main body part are detachably designed. Preferably, the rotating shaft part is in a straight rod shape, the rotating shaft part penetrates through the main body part in a detachable bolt mode, two ends of the rotating shaft part are respectively located on two sides of the main body part after penetrating, and the winding structure is located at two ends of the rotating shaft part. Preferably, the rotation axis of the rotation axis part is perpendicular to the rotation axis of the bit mounting part. Preferably, the rotation axis of the rotation axis is the axis of the rotation axis.

Preferably, the driving module includes a rotating shaft mounting hole, the rotating shaft mounting hole can rotate around its own axial lead when the driving module operates, and when the rotating shaft is mounted in the rotating shaft mounting hole, the rotating shaft cannot rotate relative to the rotating shaft mounting hole, and can only rotate under the driving of the rotation of the rotating shaft mounting hole. Preferably, the middle section part of the rotating shaft part is a hexagonal shaft, and the mounting hole of the rotating shaft part is a hexagonal hole matched with the hexagonal shaft. Preferably, the hexagonal shaft part of the rotating shaft part has magnetism, and the material of the mounting hole of the rotating shaft part has ferromagnetism, so that the hexagonal shaft part of the rotating shaft part and the mounting hole of the rotating shaft part can be magnetically attracted together.

Preferably, the replacement bit is installed with the bit installation part in a magnetic attraction manner.

Preferably, the winding structure is an open slot arranged at two ends of the rotating shaft part, the open end of the open slot is positioned at the end part of the rotating shaft part, and the opening direction of the open slot is parallel to the rotating shaft center line of the rotating shaft part. Preferably, two blocking soft sheets are arranged at the opening end of the open slot, the metal wire can be extruded into the open slot from a gap between the two blocking soft sheets under the action of external force, but the metal wire positioned in the open slot cannot be extruded from the gap between the two blocking soft sheets under the condition of no external force. The arrangement of the blocking film can prevent the metal wire from automatically sliding out after being put into the open slot, which causes trouble in wire bundling operation. Preferably, the blocking film is made of rubber.

Preferably, the wire winding structure is provided with wire holes at two ends of the rotating shaft part, the axis of the wire hole is perpendicular to the axis of the rotating shaft part, and the metal wire can pass through the wire holes.

Preferably, the winding structure is hook-shaped portions arranged at two ends of the rotating shaft portion, the hook-shaped portions are provided with metal wire inlets, and the metal wires can be placed into the hook-shaped portions from the metal wire inlets.

Preferably, the driving module includes a motor, a speed reduction module and a transmission module, and the power for driving the rotation of the rotation shaft part is output by the motor, is reduced by the speed reduction module and then is transmitted to the rotation shaft part by the transmission module, so as to drive the rotation shaft part to rotate.

Preferably, the speed reduction module is planetary gear reduction, the transmission module is vertical bevel gear group, motor and speed reduction module all are on a parallel with criticize the rotation axis line installation of first installation department, the axial lead perpendicular to of pivot portion criticize the rotation axis line of first installation department, pass through by the power of speed reduction module output the perpendicular transmission of vertical bevel gear group is transmitted for pivot portion makes pivot portion is rotatory around its self axial lead.

Further, the motor comprises a motor output shaft, the speed reduction module comprises a first output shaft, the first output shaft is coaxial with the motor output shaft, the transmission module is a vertical bevel gear set, the vertical bevel gear set comprises a first bevel gear and a second bevel gear, the first bevel gear is coaxially mounted on the first output shaft, the second bevel gear is coaxially mounted with the rotating shaft, the first bevel gear is vertically meshed with the second bevel gear, the power output by the first output shaft is output to the rotating shaft through vertical reversing of the vertical bevel gear set, the power output switching module comprises a third bevel gear, a clutch shaft and a constraint frame, the constraint frame can drive the clutch shaft to move up and down, but the constraint frame cannot rotate, the third bevel gear is vertically meshed with the second bevel gear, the third bevel gear is coaxial with the first bevel gear, and when the electric screwdriver mode is switched to the electric screwdriver mode, the clutch shaft is driven by the constraint frame to connect a rotating shaft of the third bevel gear with a rotating shaft of the screwdriver head, so that the power of the first output shaft is transmitted to the screwdriver mounting part; when the mode of the electric screwdriver is switched to the mode of the electric wire bundling machine, the restraint frame drives the clutch shaft to disconnect the rotating shaft of the third bevel gear from the rotating shaft of the bit mounting part, so that a path for transmitting power from the first output shaft to the bit mounting part is cut off, and at the moment, the restraint frame limits the rotation freedom degree of the rotating shaft of the bit mounting part through non-rotation matching between the restraint frame and the rotating shaft of the bit mounting part.

Preferably, the control module comprises a forward and reverse rotation control unit for controlling the driving module to rotate forward or reversely.

Taking the plastic hose bound to the cylindrical object by iron wires as an example, the method of using the present invention as an electric wire binder and the principle of pre-tightening the binding wires will be described below. In the following description, a preferred embodiment of the present invention is that the winding structure is an open slot disposed at two ends of the rotating shaft portion, the rotating shaft portion is detachably mounted in the rotating shaft portion mounting hole, and the head of the wire clamping batch head is provided with a wire clamping groove. The specific steps and principles are as follows:

step 1, folding the metal wire in half, then sleeving the metal wire on an object to be bundled and preliminarily tightening the metal wire: firstly, a plastic hose is sleeved on a cylindrical object, then an iron wire is folded in half, two ends of the folded iron wire are respectively called a bending end and a double-end, the bending end is a part where the iron wire is folded in half, the double-end is one end where two free ends of the folded iron wire are located, the folded iron wire is wound for a circle along the part where the plastic hose is overlapped with the cylindrical object, then the double-end of the iron wire penetrates through a gap at the bending end, and the double-end is pulled by force to be primarily tightened;

step 2, the electric wire bundling device is used as an electric wire bundling device for bundling and binding: the wire clamping screwdriver head is installed in the screwdriver head installation part in a recommended posture, the rotating shaft part is installed in the rotating shaft part installation hole, two free ends of two iron wires at two ends of the iron wires are respectively placed in open grooves at two ends of the rotating shaft part, then the wire clamping grooves of the wire clamping screwdriver head are used for clamping and tightly abutting the bent ends of the iron wires, then the driving module is made to rotate forwards or backwards through the forward and backward rotation control unit, the driving module starts to drive the rotating shaft part to rotate around a rotating shaft center line of the rotating shaft part, winding acting force can be generated on the iron wires restrained by the open grooves during rotation, the two free ends of the iron wires start to be wound on the rotating shaft part, the length of the iron wires participating in winding on the rotating shaft part is gradually increased along with the rotation, the length of the part of the iron wires which are not wound on the rotating shaft part is correspondingly shortened, the iron wires wound on the plastic hose are forced to be gradually tightened, and the tightening force is improved by continuously applying rotation torque by the driving module until the limit output torque of the driving module is reached or the iron wires are pulled apart. In practical applications, however, the binding force is not generally as high as the wire is broken unless the wire is too thin, and the maximum binding stress can be provided according to how much rotation torque the driving module can output. When the bundling strength reaches the actual requirement, the main body part is pulled in the direction opposite to the direction when the double-end penetrates through the bending end, the wire clamping groove clamps the bending end of the iron wire at the moment, so that the main body part can rotate by taking the wire clamping groove as the circle center, the parts of the two free ends of the iron wire, which are not wound on the rotating shaft part, are driven to rotate along with the main body part, and after the wire clamping groove rotates to a certain degree, the parts of the iron wire, which are close to the bending end, can be hooked in a barb shape to hook the bending end of the iron wire, so that the bundling fixation is realized, and the barb-shaped iron wire sections are called as fixed barbs. And (3) cutting off redundant free end iron wires near the fixed barb by using pliers, and knocking the fixed barb to be flat, thereby completing the whole bundling process.

In the process of bundling by means of the wire bundling machine, the iron wire is basically only subjected to tensile stress in the length direction and hardly or rarely subjected to torsional shear stress, in addition, the deformation degree of the iron wire is not severe, and the deformation of the iron wire is basically continuous and smooth, compared with the severe stress working condition of continuous torsional shear stress caused by twist torsion in the background art, the stress working condition of the iron wire is much better, so that the wire bundling machine with the same strength can provide larger bundling force. According to experimental verification, the binding force of the binding method can easily meet the requirement.

In addition, the binding method has the advantages that the appearance effect after binding is very neat, particularly after the fixing barbs are knocked flat, the phenomenon that the free ends of wires which are obviously tied or easily hung on clothes are protruded and remained like twist twisting binding in the background technology is avoided.

The invention has the beneficial effects that:

(1) The electric screwdriver has the functions of an ordinary electric screwdriver with replaceable screwdriver heads and electric auxiliary metal wire binding and binding;

(2) The invention has an electric wire bundling device mode and an electric screw driver mode, the two modes adopt the same set of power for driving, and the two modes are switched by mechanical clutch. When the screwdriver is used as a traditional electric screwdriver, the screwdriver can be used for electrically screwing or unscrewing screws of various models only by switching to an electric screwdriver mode and then replacing screwdriver bits with different specifications; when the electric wire bundling device is used for assisting the metal wire in bundling and binding, only the replacement batch head with the wire clamping groove needs to be replaced, and the electric wire bundling device for high-strength metal wire bundling is formed;

(3) When the metal wire is bundled in the mode of the electric wire bundling device, as long as the torque which can be output by the driving module is large enough, the sufficient bundling force can be provided, and the requirements on the bundling force under different use scenes are met;

(4) The arrangement of the wire clamping batch heads with different specifications can meet the requirements of binding and binding various thick and thin metal wires;

(5) When the metal wire is bound in the mode of the electric wire binding device, the binding effect is neat and beautiful, and obvious hand pricking or protrusion residue at the free end of an iron wire which is easy to hang on clothes can not exist;

(6) In the mode of the electric wire bundling machine, the bit mounting part is restrained by the power output switching module and cannot rotate relative to the main body part, so that the bit mounting part can be used as a manual screwdriver, and the electric wire bundling machine also has the function of the manual screwdriver;

(7) When the invention is used as a manual screwdriver, if the rotating shaft part is not detached from the main body part, two ends of the rotating shaft part can also be used as force application levers, and larger torque for manually screwing the screw can be provided.

It should be noted that the advantageous effects of the present invention are not limited to the above description, and can be understood in combination with the specific technical solutions and the preferred embodiments, and descriptions of technical effects and advantageous effects of a specific technical solution or a preferred embodiment are also inserted in the summary of the invention and the following embodiments.

Drawings

Fig. 1 is a three-dimensional schematic view of a wire binding operation in a mode of an electric wire binding device of an electric wire binding screwdriver according to the present invention, in which a main body is a straight shank type structure, and direction marks at the upper left corner of the drawing designate directions of the present invention, which are related to up and down directions, and should be changed synchronously with a change of an observation angle when the observation angle of a certain part in the drawing is changed in other views, and if "top" and "top" appear in the present invention, the "top" is the same direction as the "up" in the direction marks; if "bottom" or "bottom" is present, the "bottom" is in the same direction as "down" in the orientation indicator. If "vertical" is present, the "vertical" direction is synonymous with the "up-down" direction in the orientation label.

Fig. 2 is a three-dimensional schematic view of the electric wire binding device mode of the electric wire binding screwdriver of the present invention, wherein the main body is in a gun-type structure, and the direction mark at the upper right corner in the figure designates the up-down direction of the present invention, and when the viewing angle of a certain part in the figure is changed in other views, the direction mark should also be changed synchronously along with the change of the viewing angle, and if the "top" and the "top" appear in the present invention, the "top" and the "up" in the direction mark are in the same direction; if "bottom" or "bottom" is present, the "bottom" is in the same direction as "down" in the orientation indicator. If "vertical" is present, the "vertical" direction is synonymous with the "up and down" direction in the direction label.

Fig. 3 is a three-dimensional view of an electric wire-binding screwdriver of the present invention in an electric screwdriver mode, wherein the body portion has a straight shank configuration.

Fig. 4 is a three-dimensional view of an electric wire driver according to the present invention in an electric driver mode, wherein the body portion is in a gun configuration.

Fig. 5 is a schematic view of the internal structure of the straight shank type structure body portion hidden when a wire binding operation is performed in the electric wire binder mode of the electric wire binder screwdriver according to the present invention.

Fig. 6 is a schematic view of an internal structure of a power-operated wire binder mode of a power-operated wire binder screwdriver according to the present invention.

Fig. 7 is a schematic view of the internal structure of an electric screwdriver mode of an electric wire screwdriver according to the present invention.

Fig. 8 is an exploded view of the components of the electric wire binding screwdriver of the present invention in the electric wire binding mode, wherein the main body has a straight shank structure.

Fig. 9 is an exploded view of the components of the electric wire-bundling device mode of the electric wire-bundling screwdriver according to the present invention, wherein the main body has a gun-type structure.

Fig. 10 is a sectional view of the internal structure of a power-operated wire binder mode of a power-operated wire binder screwdriver of the present invention.

Fig. 11 is a sectional view illustrating a state switching process between a mode of the electric wire binder and a mode of the electric screw driver according to the electric wire binder driver of the present invention.

Fig. 12 is a schematic view of the wire ties for binding according to the present invention not yet bound to the objects to be bound, but hidden from view.

Fig. 13 is a schematic view of a power-driven wire-binding screwdriver according to the present invention after binding the objects to be bound.

Fig. 14 is a schematic view of the winding structure at both ends of the rotating shaft portion being threading holes.

Fig. 15 is a schematic view of the hook-shaped winding structure at both ends of the rotating shaft.

Detailed Description

The present invention will be further described and illustrated in detail below with reference to examples, embodiments and the accompanying drawings, wherein the examples or embodiments are only a part of the examples or embodiments of the present invention, and not all examples or embodiments. All other embodiments or implementations obtained by a person of ordinary skill in the art based on the embodiments or implementations of the present invention without any creative effort shall fall within the protection scope of the present invention.

The following description of the embodiments or examples of the invention is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Referring to fig. 1 to 15, an electric wire screwdriver of the present invention includes: the main part, replace and criticize head, pivot portion 5, drive module, power output switch module, control module, power module, be provided with on the main part and criticize first installation department 1301, the replacement is criticized the head and is had a plurality of and criticize first 3 including a card line at least, the replacement is criticized the head and can be installed criticize on first installation department 1301, be provided with wire winding structure on the pivot portion 5. In addition to the card line batch head 3, the replacement batch head can be a plurality of, for example, the batch heads of various specifications such as the common cross batch head, the straight batch head, the hexagonal plum blossom batch head 24, and the like, and the batch head mounting part 1301 can be used for screwing screws of different specifications after being provided with different replacement batch heads.

The electric wire binding screwdriver comprises an electric wire binding device mode and an electric screwdriver mode, and the two modes are switched by the power output switching module.

In the electric wire binding device mode, the rotating shaft part 5 is driven to rotate by the driving module, the replacement bit and bit mounting part 1301 is restrained by the power output switching module and does not rotate, when one end of the metal wire is restrained and the other end of the metal wire is placed in the winding structure, the winding structure can generate winding acting force on the metal wire along with the rotation of the rotating shaft part 5, so that the metal wire is wound on the rotating shaft part 5, the length of the straightened part of the metal wire is gradually shortened along with the winding, and the effect of tensioning the straightened part of the metal wire is realized.

In the electric screwdriver mode, the bit mounting portion 1301 is driven by the driving module to rotate around the axis of the bit mounting portion per se relative to the main body portion, so that the replacement bit is driven to rotate.

The wire clamping batch head 3 is used for clamping the metal wire when in bundling and restraining the radial freedom degree of the clamped part of the metal wire, the control module is used for controlling the running state of the driving module, and the power supply module is used for supplying power. As shown in fig. 8 and 9, the driving module includes a first output shaft 2203, and the operating state of the driving module includes forward rotation, reverse rotation, stall, the azimuth angle of the first output shaft 2203 when the first output shaft is at the stall, the rotating speed of the first output shaft 2203, the maximum torque value allowed to be output by the first output shaft 2203 at present, and the like.

Preferably, as shown in fig. 8 and 9, the driving module includes a rotating shaft portion mounting hole 402, the driving module can rotate the rotating shaft portion mounting hole 402 around its own axis when operating, when the rotating shaft portion 5 is mounted in the rotating shaft portion mounting hole 402, the rotating shaft portion 5 cannot rotate relative to the rotating shaft portion mounting hole 402, and can only rotate under the rotation of the rotating shaft portion mounting hole 402.

Main body embodiment

Preferably, the drawings in the specification show two preferred embodiments of the main body part of the electric wire binding screwdriver according to the present invention, including a straight shank type structure called a straight shank type body and a gun type structure called a gun type body, as shown in fig. 2, 4 and 9, the gun type body includes a holding part 33, a gun body part 32, a muzzle end 3204 and a knob part 31. When the main body part is a straight shank type body, as shown in fig. 8, the bit mounting part 1301 is disposed at the straight shank bottom end 204 of the straight shank type body. When the main body is a gun body, as shown in fig. 9, the batch head installation part 1301 is disposed at a muzzle end 3204 of the gun body.

The straight handle type structure has the advantages of simple appearance structure, convenience in carrying and no space occupation, and the defect that the driving module can not be held and slipped when outputting too large torque. The gun type structure has the advantages that the gun type structure can bear larger output torque of the driving module when being held for use, the gun type structure is comfortable to hold, and the gun type structure is not very portable and occupies more space compared with a straight handle type structure. It should be noted that the structure of the main body is not limited to the straight shank type structure and the gun type structure, and may be other forms, and it is also within the scope of the present invention if the form or structure of the main body is simply changed without creative efforts based on the present invention.

When the main body part is of a straight handle type structure:

the straight shank type fuselage is preferably a cylindrical straight shank, but may be a cylindrical straight shank in other forms, such as a hexagonal cylindrical straight shank, an octagonal cylindrical straight shank, and the like.

Preferably, as shown in fig. 8, the cylindrical straight shank includes a cylindrical shank 2 and a cylindrical knob 1, and the cylindrical shank 2 is hollow and accommodates the driving module and the power output switching module. Preferably, when the power supply module is a rechargeable battery, the rechargeable battery is also located inside the cylindrical shank 2. The cylindrical knob 1 is used for adjusting and setting the maximum torque value which can be output by the driving module at present. The cylindrical knob 1 is rotated to set the maximum torque value which can be output by the driving module at present. Preferably, the cylindrical knob 1 achieves the setting through a rotary potentiometer, and the rotary potentiometer is connected with the control module.

Preferably, the cylindrical stem 2 includes a stem upper end 201 and a stem lower end 202. Preferably, the upper end 201 of the handle body is provided with friction lines, so that the friction force for holding can be increased.

Preferably, a screen display module 9 is further disposed on the cylindrical handle body 2, and the screen display module 9 is connected to the control module and is configured to display a current electric quantity, a charging state, and a currently set value of a maximum torque that can be output by the driving module. Preferably, the screen display module 9 can also be used for displaying system parameters such as system time, forward and reverse rotation states of the driving module, and the like. Preferably, the screen display module 9 is disposed on the lower end 202 of the handle.

Preferably, the forward and reverse rotation control unit is a forward and reverse rotation control switch 7, the forward and reverse rotation control switch 7 is preferably two jog keys, one of the jog keys is used for controlling the driving module to start and rotate forward, and the other jog key is used for controlling the driving module to start and rotate backward. Preferably, the forward and reverse rotation control switch 7 is located on the cylindrical handle body 2. Preferably, the forward and reverse rotation control switch 7 is located on the upper end 201 of the handle body.

When the main body part is of a gun type structure:

as shown in fig. 2, 4 and 9, the gun body is gun-shaped as a whole, and includes a grip portion 33, a gun body portion 32 and a knob portion 31, and the grip portion 33 and the gun body portion 32 are both hollow. Preferably, the gun body 32 accommodates the driving module and the power output switching module. When the power module is a rechargeable battery, the rechargeable battery is located in the holding portion 33. The knob part 31 is used for adjusting and setting the maximum torque value which can be output by the driving module at present. The knob part 31 sets the maximum torque value which can be currently output by the driving module through rotation. Preferably, the knob portion 31 is configured to be set by a rotary potentiometer, and the rotary potentiometer is connected to the control module.

Preferably, the body portion 32 includes a body upper end 3201 and a body lower end 3202.

Preferably, a screen display module 9 is further disposed on the gun body portion 32, and the screen display module 9 is connected to the control module and is configured to display the current electric quantity, the charging state, and the currently set value of the maximum torque that can be output by the driving module. Preferably, the screen display module 9 can also be used to display system parameters such as system time, forward and reverse rotation states of the driving module, and the like. Preferably, the screen display module 9 is located on the lower end 3202 of the gun body.

Preferably, the forward and reverse rotation control unit comprises a forward and reverse rotation switch 34 and a speed regulating button 35, and the forward and reverse rotation switch 34 is preferably a two-gear toggle switch for switching forward rotation and reverse rotation of the driving module. Different from the forward/reverse rotation control switch 7, the forward/reverse rotation switch 34 does not directly start forward/reverse rotation of the driving module, but is only used for limiting that the current driving module can rotate forward or reverse, and the driving module can be started and rotated in the rotation direction limited by the forward/reverse rotation switch 34 only by pressing the speed-adjusting button 35. The button 35 can change through the degree of depth that the adjustment was pressed the drive module's slew velocity, the degree of depth that the button 35 was pressed is big more, the slew velocity of drive module is also fast more, and the degree of depth that the button 35 was pressed is shallow more, the slew velocity of drive module is slow more. Preferably, the forward/reverse rotation switch 34 and the speed adjusting button 35 are both located on the grip portion 33.

Preferably, the speed regulation of the speed regulation button 35 is realized by determining the current pressed depth of the speed regulation button 35 through a linear sliding potentiometer, which is called a first sliding potentiometer, the first sliding potentiometer includes a first sliding handle and a first potentiometer main body, the first potentiometer main body is fixed relative to the holding part 33, the first sliding handle and the speed regulation button 35 are connected together and move synchronously, and as the pressed depth of the speed regulation button 35 changes, the position of the first sliding handle on the first potentiometer main body also changes. The first sliding potentiometer is connected with the control module.

Wire clamping screwdriver head implementation mode

As shown in fig. 1, 2, 6, 8, and 9, preferably, the head of the wire-clamping batch head 3 is provided with a wire-clamping groove 301, the wire-clamping groove 301 is used for clamping the metal wire during binding, and preferably, the wire-clamping groove 301 is an arc-shaped groove. Preferably, the diameter of the circular arc groove is equal to or larger than the diameter of the metal wire. The diameter of the arc-shaped groove is larger than or equal to that of the metal wire, so that the wire clamping groove 301 can clamp a single metal wire during wire bundling operation. Preferably, when the wire clamping batch head 3 is installed in the batch head installation part 1301 in a recommended posture, the axis of the circular arc-shaped groove is parallel to the axis of rotation of the rotation shaft part 5. Taking the bit mounting hole 1304 of the bit mounting portion 1301 as an inner hexagonal hole and the mounting end of the replacement bit as an outer hexagonal column as an example, the hexagonal mounting has a mounting direction, and the replacement bit is mounted on the bit mounting portion 1301 by rotating the bit around its own axis by 60 degrees and corresponds to different mounting postures, i.e., the recommended posture is the mounting posture in which the axis of the arc-shaped groove is parallel to the rotation axis of the rotation shaft portion 5. When the wire bundling machine is used as an electric wire bundling machine under the posture, the deformation and stress working conditions of the metal wire are optimal, and the metal wire can be prevented from being twisted when being bundled and tightly bound. Preferably, when the size of the replacement batch head matches the size of the batch head mounting hole 1304, the replacement batch head can be directly mounted in the batch head mounting hole 1304; when the size of the replacement bit does not match the size of the bit mounting hole 1304, the replacement bit may be first mounted in the transducing head mounting hole 1201 of the transducing head 12, and then the transducing head 12 is mounted in the bit mounting hole 1304, that is, the replacement bit is indirectly mounted on the bit mounting portion 1301.

Preferably, the wire-clamping batch head 3 can have a plurality of specifications, the wire-clamping groove 301 of each specification of the wire-clamping batch head 3 corresponds to wires in different diameter ranges, and the optimal use condition is that the diameter of the circular arc-shaped groove is slightly larger than that of the wires. The wire clamping batch heads 3 with various specifications can adapt to the wire bundling application scenes with various different diameters.

Drive module embodiment

As shown in fig. 5, 6, 8, and 9, preferably, the driving module includes a motor 2202, a speed reduction module, and a transmission module, and the power for driving the rotation of the rotating shaft portion 5 is output from the motor 2202, is reduced in speed by the speed reduction module, and is transmitted to the rotating shaft portion 5 by the transmission module, thereby driving the rotating shaft portion 5 to rotate.

Preferably, the speed reduction module is a planetary gear speed reduction mechanism 2201, i.e. a common cylindrical planetary gear speed reduction box, and an output shaft of the planetary gear speed reduction mechanism 2201 is coaxial with a motor output shaft of the motor 2202. The motor 2202 and the planetary gear reduction mechanism 2201 together form a reduction motor 22. The output shaft of the planetary gear reduction mechanism is hereinafter referred to as a first output shaft 2203. Preferably, the transmission module is a vertical bevel gear set. Preferably, the vertical bevel gear set includes a first bevel gear 21 and a second bevel gear 20, the first bevel gear 21 and the second bevel gear 20 are vertically engaged, the first bevel gear 21 is mounted on the first output shaft 2203, the second bevel gear 20 is coaxially mounted with the rotating shaft 5, and the second bevel gear 20 and the rotating shaft 5 cannot rotate relatively and can only rotate synchronously.

Preferably, the rotating shaft 5 and the second bevel gear 20 are detachably designed for use. Preferably, the rotating shaft part 5 is a straight rod, and the middle section thereof is a hexagonal shaft section 505. Preferably, for convenience of manufacturing and assembling, the rotating shaft portion 5 and the second bevel gear 20 are indirectly mounted instead of being directly mounted together, and a gear spindle 4 is further disposed between the two, the gear spindle 4 includes an outer cylindrical surface 401 and an inner cylindrical surface, the outer cylindrical surface 401 is a non-rotating cylindrical surface and is matched with the central through hole 2201 of the second bevel gear 20, the inner cylindrical surface is the rotating shaft portion mounting hole 402, and the rotating shaft portion mounting hole 402 is matched with the hexagonal shaft section 505 of the rotating shaft portion 5. Preferably, the hexagonal section 505 of the rotating shaft portion 5 has magnetism, and the gear core shaft 4 is made of ferromagnetic material, so that the hexagonal section 505 of the rotating shaft portion 5 and the rotating shaft portion mounting hole 402 can be magnetically attracted together. So that the rotary shaft portion 5 does not easily fall out of the rotary shaft portion mounting hole 402 during the wire binding process.

When the main body is a straight shank type body, it is preferable that the motor 2202 and the planetary gear reduction mechanism 2201 are coaxially mounted to the straight shank type body. The axial lead of the rotating shaft part 5 is perpendicular to the axial lead of the straight shank type machine body, and power output by the speed reducing module is transmitted to the rotating shaft part 5 through vertical transmission of the vertical bevel gear set, so that the rotating shaft part 5 can be perpendicular to the straight shank type machine body and rotate around the axial lead of the straight shank type machine body. As shown in fig. 1 and 8, two ends of the outer cylindrical surface 401 of the gear core shaft 4 are coaxially matched with the through hole 203 of the rotating shaft part on the straight shank type body. Preferably, the outer cylindrical surface 401 of the gear core shaft 4 is formed by cutting off a portion of a cylindrical surface in a direction parallel to the axis thereof, and the outer cylindrical surface 401 has both cylindrical and planar portions, such as a conventional D-shaped shaft with only a single side portion cut off, or a flat shaft with a portion cut off bilaterally symmetrically. Preferably, the outer cylindrical surface 401 and the through hole 203 of the rotating shaft portion are matched through a bearing or a shaft sleeve, and the bearing or the shaft sleeve can enable the gear spindle 4 to rotate around the rotating shaft axis smoothly.

When the main body portion is a gun body, it is preferable that the motor 2202 and the planetary gear reduction mechanism 2201 are installed coaxially with the gun body portion 32. The axial lead of the rotating shaft part 5 is perpendicular to the axial lead of the gun body part 32, and the power output by the speed reducing module is transmitted to the rotating shaft part 5 through the vertical transmission of the vertical bevel gear set, so that the rotating shaft part 5 can rotate around the axial lead of the rotating shaft part 5 perpendicular to the gun body part 32. As shown in fig. 2 and 9, both ends of the outer cylindrical surface 401 of the gear spindle 4 are coaxially fitted with a through hole 3203 of the body rotating shaft portion on the body portion 32. Preferably, the outer cylindrical surface 401 of the gear core shaft 4 is formed by cutting off a portion of a cylindrical surface in a direction parallel to the axis thereof, and the outer cylindrical surface 401 has both cylindrical and planar portions, such as a conventional D-shaped shaft with only a single side portion cut off, or a flat shaft with a portion cut off bilaterally symmetrically. Preferably, the outer cylindrical surface 401 and the gun body rotating shaft part through hole 3203 are matched through a bearing or a shaft sleeve, and the matching mode of the bearing or the shaft sleeve can enable the gear spindle 4 to rotate around the rotating axis line thereof more smoothly.

Further, the transmission module further includes a third bevel gear 19 and a second output shaft 18, the third bevel gear 19 is vertically engaged with the second bevel gear 20, the third bevel gear 19 is coaxial with the first bevel gear 21, the second output shaft 18 is coaxially fixed to the third bevel gear 19, and the power output by the motor 2202 is reduced by the reduction module and then sequentially transmitted to the second output shaft 18 through the first output shaft 2203, the first bevel gear 21, the second bevel gear 20 and the third bevel gear 19.

When the mode of the electric wire bundling device is switched to the mode of the electric screwdriver, the power output switching module is used for connecting the rotating shaft of the third bevel gear 19, namely the second output shaft 18, with the rotating shaft of the bit mounting part 1301, so that the power of the first output shaft 2203 is transmitted to the bit mounting part 1301; when the mode is switched from the electric screwdriver mode to the electric wire binding device mode, the power output switching module disconnects the second output shaft 18, which is the rotating shaft of the third bevel gear 19, from the rotating shaft of the bit mounting part 1301, thereby cutting off the path of power transmission from the first output shaft 2203 to the bit mounting part 1301.

Power output switching module implementation mode

As shown in fig. 5, 6, 8, and 9, preferably, the power output switching module includes a clutch shaft 15, a constraint frame 16, and a power transmission shaft, the rotation axes of the clutch shaft 15, the power transmission shaft, and the second output shaft 18 are coaxial, the constraint frame 16 is movable parallel to the rotation axes of the three, but not rotatable, the clutch shaft 15 is rotatable around its rotation axis and is constrained by the constraint frame 16 to move along with the constraint frame 16, the clutch shaft 15 is driven by the constraint frame 16 to establish or break the synchronous rotation constraint between the second output shaft 18 and the power transmission shaft, when the synchronous rotation constraint between the second output shaft 18 and the power transmission shaft is established, the power transmission shaft keeps rotating synchronously with the second output shaft 18, and when the synchronous rotation constraint between the second output shaft 18 and the power transmission shaft is broken, the rotation of the second output shaft 18 is no longer transmitted to the power transmission shaft; preferably, the bit mounting portion 1301 is fixedly connected to the lower end of the power transmission shaft.

Further, the second output shaft 18 includes a gear mounting end 1801 and an output end 1802, the output end 1802 and the second output shaft 18 rotate on the same axis, the clutch shaft 15 includes a first constraint hole 1504 and a clutch shaft through hole 1503, the constraint frame 16 includes a second constraint hole 1605, the power transmission shaft includes a first connection shaft body 1303 and a second connection shaft body 1302, the first connection shaft body 1303 is fixedly connected to the upper end of the second connection shaft body 1302, the output end 1802, the first constraint hole 1504, the second constraint hole 1605, the first connection shaft body 1303 and the second connection shaft body 1302 are all coaxial with the rotation axis and are all non-rotation structures, the output end 1802 can be in clearance fit with the first constraint hole 1504, the first connection shaft body 1303 can also be in clearance fit with the first constraint hole, the second constraint hole 1605 can be in clearance fit with the second connection shaft body 1302, the moving stroke of the constraining frame 16 includes an upper limit and a lower limit, the constraining frame 16 can move between the upper limit and the lower limit, when the constraining frame 16 is at the upper limit, the first constraining hole 1504 is simultaneously matched with the output end 1802 and the first connecting shaft 1303, the second connecting shaft 1302 is disengaged from the second constraining hole 1605, when the constraining frame 16 is at the lower limit, the first constraining hole 1504 is disengaged from the output end 1802, the second connecting shaft 1302 is matched with the second constraining hole 1605, because the constraining frame 16 can only translate up and down and can not rotate, when the second connecting shaft 1302 is matched with the second constraining hole 1605, the head mounting part 1301 is limited by the rotational freedom and can not rotate, thus the string clamping head 3 can not rotate during the string binding process, the wire is more stable and reliable in operation, and also because the bit mount 1301 cannot be rotated, the electric wire screwdriver can be used as a manual screwdriver.

Preferably, the output end 1802, the first connecting shaft body 1303 and the second connecting shaft body 1302 are regular polygonal shafts, and the first constraining hole 1504 and the second constraining hole 1605 are regular polygonal holes matched with the regular polygonal shafts. Preferably, the output end 1802, the first connecting shaft body 1303 and the second connecting shaft body 1302 are all hexagonal shafts, and the first constraint hole 1504 and the second constraint hole 1605 are all hexagonal holes matched with the hexagonal shafts.

Preferably, the output end 1802, the first connecting shaft body 1303 and the second connecting shaft body 1302 are all multi-tooth elongated shafts, and the first restraining hole 1504 and the second restraining hole 1605 are all multi-tooth elongated holes matched with the multi-tooth elongated shafts.

Preferably, the first restriction hole 1504 is just about to engage with the output end 1802 when the second restriction hole 1605 is about to disengage from the second connecting shaft body 1302 during the movement of the restriction frame 16 from the lower limit to the upper limit, and the second restriction hole 1605 is just about to engage with the second connecting shaft body 1302 when the first restriction hole 1504 is about to disengage from the output end 1802 during the movement of the restriction frame 16 from the upper limit to the lower limit.

Further, the power output switching module further includes a clutch alignment control unit, configured to perform an alignment operation, the clutch alignment control unit is connected to the control module, when the constraining frame 16 is located at the upper limit position, the clutch alignment control unit controls the driving module to rotate the output end 1802 of the second output shaft 18, since the first constraining hole 1504 is simultaneously matched with the output end 1802 and the first connecting shaft body 1303, the rotation of the output end 1802 will drive the first connecting shaft body 1303 to rotate synchronously, so as to drive the second connecting shaft body 1302 to rotate synchronously, until the second connecting shaft body 1302 is aligned with the second constraining hole 1605, that is, when the second constraining hole 1605 can be matched with the second connecting shaft body 1302 only by translating along the axis thereof, the clutch alignment control unit stops the rotation of the output end 1802, and at this time, the constraining frame 16 only needs to be slid downwards to move from the upper limit position to the lower limit position, so as to disconnect the output end 1802 from the power transmission shaft with the power transmission shaft, and at this time, the power transmission shaft cannot rotate around the rotation axis 1605 by being constrained by the second constraining hole 1605; when the constraint frame 16 is located at the lower limit, the clutch alignment control unit controls the driving module to rotate the output end 1802 of the second output shaft 18 until the output end 1802 is aligned with the first constraint hole 1504, that is, when the first constraint hole 1504 can be matched with the output end 1802 only by translating along the axis thereof, the clutch alignment control unit stops the rotation of the output end 1802, and at this time, the connection between the output end 1802 and the power transmission shaft can be established only by sliding the constraint frame 16 upwards to move the constraint frame from the lower limit to the upper limit, so that the rotation of the output end 1802 can be synchronously transmitted to the power transmission shaft. As can be seen from the above alignment operation logic, as long as the second connection shaft body 1302 is aligned with the second restriction hole 1605, the output terminal 1802 is aligned with the first restriction hole 1504, so that the azimuth angle at which the output terminal 1802 is located when the second connection shaft body 1302 is aligned with the second restriction hole 1605, or the azimuth angle at which the output terminal 1802 is located when the output terminal 1802 is aligned with the first restriction hole 1504, can be selected as the azimuth angle zero point of the output terminal 1802. Thus, each time the alignment operation is performed, the alignment can be completed by only rotating the output end 1802 to the zero point of the azimuth angle thereof, thereby simplifying the logic difficulty of the alignment operation.

Preferably, the clutch alignment control unit includes a jog switch 36, and the alignment operation is performed when the jog switch 36 is pressed. Preferably, the jog switch 36 is located at the tip of the body portion.

Preferably, the clutch alignment control unit comprises a second slip potentiometer. Preferably, the second sliding potentiometer is also a straight sliding potentiometer, and the second sliding potentiometer includes a second sliding handle and a second potentiometer main body, the second potentiometer main body is fixed with respect to the main body, the second sliding handle is connected to the restraint frame 16, and slides with respect to the second potentiometer main body following the movement of the restraint frame 16, and the sliding stroke of the second sliding handle is greater than or equal to the distance between the upper limit and the lower limit of the restraint frame 16, and when the restraint frame 16 slides from the upper limit to the lower limit, or when the restraint frame 16 slides from the lower limit to the upper limit, the control module detects the sliding motion, that is, the alignment operation is performed.

Further, the power output switching module further comprises an external sliding piece 8, the external sliding piece 8 is exposed on the outer surface of the straight handle type body or the gun body part 32 and can slide up and down, the external sliding piece 8 is fixedly connected with the extending end 1603 of the constraint frame 16, and when the external sliding piece 8 slides, the constraint frame 16 can also slide up and down along with the external sliding piece. Preferably, the outer sliding piece 8 is provided with a rough texture to increase the friction force when the user operates the sliding. Furthermore, the motion stroke of the external sliding piece 8 is also provided with an upper limit and a lower limit, including an upper limit of the sliding piece and a lower limit of the sliding piece. Preferably, when the outer slide 8 is located at the upper limit of the slide, the restraint frame 16 is also located at the upper limit thereof, and when the outer slide 8 is located at the lower limit of the slide, the restraint frame 16 is also located at the lower limit thereof. Preferably, the external sliding piece 8 has two pieces, and the two external sliding pieces 8 are symmetrically arranged along a symmetry plane where the central axis of the straight shank type body or the gun body part 32 is located. Preferably, when the outer slide plate 8 is located at the upper limit of the slide plate, both ends of the rotating shaft portion mounting hole 402 are completely covered by two outer slide plates 8, and when the outer slide plate 8 is located at the lower limit of the slide plate, both ends of the rotating shaft portion mounting hole 402 are completely exposed, which is a fool-proof design, so that it is possible to prevent an operator from mistakenly assuming an electric wire binding mode when the electric wire binding screwdriver is in the electric screwdriver mode, and thus causing a malfunction because there is a certain danger if the wire binding batch head 3 is also rotated during a wire binding operation, which is a structural stop, and when the electric wire binding screwdriver is in the electric screwdriver mode, both ends of the rotating shaft portion mounting hole 402 are completely covered by the outer slide plates 8, and the rotating shaft portion 5 for wire binding operation is not installed at this time, so that the malfunction is prevented. Preferably, the straight-handle body is provided with a straight-handle chute 206, the gun body 32 is provided with a gun body chute 3206, and the straight-handle chute 206 or the gun body chute 3206 enables the extension end 1603 to extend from the inside of the straight-handle body or the inside of the gun body 32 and slide along the straight-handle chute 206 or the gun body chute 3206. Preferably, the sliding of the outer sliding piece 8 is provided with a certain damping, so as to prevent the outer sliding piece 8 from sliding by itself when being influenced by gravity or vibration, which causes the outer sliding piece to drive the constraint frame 16 to move.

Preferably, the second output shaft 18 is also coaxially fitted with the first bearing 17.

Preferably, the clutch shaft 15 further includes a first shaft portion 1501 and a second shaft portion 1502, the constraint frame 16 further includes a constraint frame connector 1601 and a constraint frame circular hole 1604, and the second constraint hole 1605, the constraint frame circular hole 1604 and the extending end 1603 are connected by the constraint frame connector 1601. Preferably, the clutch shaft 15 is mounted in the constraining frame 16, the second shaft portion 1502 is matched with the constraining frame round hole 1604, and the clutch shaft 15 can rotate around the rotating shaft axis relative to the constraining frame 16, but can not move relative to the constraining frame 16 and only can move together with the constraining frame 16.

Fig. 11 illustrates a process of switching the mode of the electric wire-bundling device to the mode of the electric screw driver according to the present invention. Wherein:

fig. 11 (a) shows the present invention in the electric wire-bundling mode, in which the restricting frame 16 is located at its lower limit, and the restricting frame 16 can be moved up and down by sliding the outer sliding piece 8;

fig. 11 (b) shows that the external sliding piece 8 drives the constraint rack 16 to start moving upward, but the first constraint hole 1504 of the clutch shaft 15 has not yet reached a position where it can be engaged with the output end 1802;

fig. 11 (c) shows that the external sliding piece 8 continues to drive the constraint frame 16 to move upward, at this time, the first constraint hole 1504 of the clutch shaft 15 just reaches a position where it can be engaged with the output end 1802, but is just about to be engaged but not engaged with the output end, and at this time, the second constraint hole 1605 is about to be disengaged from the second connection shaft body 1302;

fig. 11 (d) shows that the outer sliding piece 8 continues to drive the constraint frame 16 to move upwards, at this time, the first constraint hole 1504 of the clutch shaft 15 has been engaged with the output end 1802, but the constraint frame 16 has not reached its upper limit, and at this time, the second constraint hole 1605 has been disengaged from the second connecting shaft 1302;

fig. 11 (e) shows the outer sliding piece 8 driving the restriction frame 16 to move upward to the upper limit position of the restriction frame 16, and the present invention is in the electric screwdriver mode.

The switching from the electric screwdriver mode to the electric wire binder mode is just opposite to the above-described process, and the switching process is the process of fig. 11 (e) to 11 (a).

It should be noted that the power output switching module belongs to a clutch device in nature, the above embodiment is only one implementation of the power output switching module of the present invention, but the specific implementation of the power output switching module is not limited to the above embodiment, and may also be a common gear clutch device, a friction clutch device or other types of clutch devices, and the details of the clutch devices are not repeated herein because the types of the clutch devices are many and complicated. It is also within the scope of the invention to simply replace the above-described power take-off switching module embodiments with other prior art clutching devices without inventive effort on the basis of the present invention.

Spindle part embodiment

As shown in fig. 8 and 9, the rotary shaft 5 and the main body are preferably detachable. Preferably, the rotating shaft part 5 is in a straight rod shape, and penetrates through the main body part in a detachable bolt manner, after penetrating, two ends of the rotating shaft part 5 are respectively located at two sides of the main body part, and the winding structure is located at two ends of the rotating shaft part 5. Preferably, the rotation axis of the rotation shaft part 5 is perpendicular to the rotation axis of the bit mounting part 1301. Preferably, the rotation axis of the rotation axis part 5 is the axis of the rotation axis part.

Preferably, the middle section of the rotating shaft part 5 is a hexagonal shaft section 505, the two ends of the rotating shaft part are cylindrical sections, the rotating shaft part comprises a first cylindrical section 503 and a second cylindrical section 504, and the end parts of the two ends of the rotating shaft part 5 are provided with the winding structure.

Preferably, the hexagonal shaft section 505 of the rotary shaft portion 5 is fitted into the rotary shaft portion mounting hole 402, and when the electric wire binding operation is required, the rotary shaft portion 5 is inserted into the rotary shaft portion mounting hole 402 in the form of a pin, and the hexagonal shaft section 505 is fitted into the rotary shaft portion mounting hole 402, and when the electric wire binding operation is not required, the rotary shaft portion 5 is pulled out from the rotary shaft portion mounting hole 402.

Preferably, the winding structure is an open slot arranged at two ends of the rotating shaft part 5, and includes a first open slot 501 and a second open slot 502, the open end of the open slot is located at the end parts of two ends of the rotating shaft part 5, and the opening direction of the open slot is parallel to the rotating axis line of the rotating shaft part 5. Preferably, two blocking soft sheets are arranged at the opening end of the open slot, the metal wire can be extruded into the open slot from a gap between the two blocking soft sheets under the action of external force, but the metal wire positioned in the open slot cannot be extruded from the gap between the two blocking soft sheets under the condition of no external force. The arrangement of the blocking film can prevent the metal wire from automatically sliding out after being put into the open slot, which causes trouble in wire bundling operation. Preferably, the material of the barrier film is rubber.

Preferably, as shown in fig. 14, the wire winding structure is wire threading holes disposed at two ends of the rotating shaft portion 5, and includes a first wire threading hole 509 and a second wire threading hole 510. Preferably, the axis of the threading hole is perpendicular to the axis of the rotating shaft part 5, and the metal wire can pass through the threading hole.

Preferably, as shown in fig. 15, the winding structure is hook-shaped portions disposed at two ends of the rotating shaft portion, and includes a first hook-shaped portion 507 and a second hook-shaped portion 508, the hook-shaped portions are provided with wire inlets, and the wires can be placed into the hook-shaped portions through the wire inlets.

Although only three preferred embodiments of the winding structure are listed above, the winding structure is not limited to these three embodiments, and may have other forms or structures as long as a certain structure provided on the rotating shaft portion 5 can achieve the following effects: when the rotating shaft part 5 rotates around the rotating shaft axis, the metal wire with one end constrained and the other end placed in the structure is subjected to the winding acting force of the structure, and the metal wire is wound on the rotating shaft part 5, so that the structure belongs to the winding structure of the invention.

Control Module implementation

The control module at least has the capability of data analysis, processing and control, and may be a general-purpose chip, such as a central processing unit CPU, a microprocessor MCU, etc., or a dedicated processing control chip, or a circuit board module using the above chip as a main control chip. The invention is not limited to the type of the control module, and only simple changes of the type of the control module on the basis of the invention should fall into the protection scope of the invention.

Preferably, the control module further comprises a motor encoder, and the motor encoder is configured to monitor angular position information of a motor output shaft of the motor 2202 at each time when the motor output shaft rotates. The angular zero point of the output 1802 of the second output shaft 18 can be positioned by means of the motor encoder.

Preferably, the control module further comprises a startup and shutdown switch, and the startup and shutdown switch is used for controlling the whole startup and shutdown of the inching wire binding screwdriver.

Power supply Module implementation

The power module can be a rechargeable battery, a non-rechargeable battery or a wired power supply module externally connected with other power sources. Preferably, the power module is a rechargeable lithium battery equipped with a charging port. Preferably, the charging port is a typeC charging port or a Micro USB charging port.

Preferably, when the main body part is of a straight handle type structure and the power module is a rechargeable lithium battery, the rechargeable lithium battery is located inside the upper end of the straight handle type body.

Preferably, when the main body is in a gun-type structure and the power module is a rechargeable lithium battery, the rechargeable lithium battery is located inside the holding portion 33.

The invention is not limited to the type of the power module, and only the type or power supply mode of the power module is simply changed on the basis of the invention, so that the invention is within the protection scope of the invention.

Screwdriver mounting part embodiment

As shown in fig. 8 and 9, the batch head installation unit 1301 is used for installing various batch heads. Preferably, the lower end of the batch head installation part 1301 is a standard hexagonal batch head installation hole.

Preferably, when the dimension specification of the replacement batch head does not match with the batch head mounting hole 1304, the replacement batch head can be mounted on the batch head mounting part 1301 by the conversion head 12. The conversion head 12 can enable the batch head installation part 1301 to install various replacement batch heads with different sizes, for example, the common conversion between a 4mm batch head and a 6.35mm batch head is realized.

Preferably, the batch head installation part 1301 and the replacement batch head are installed in a magnetic attraction manner, namely, the batch head installation part 1301 or the replacement batch head is provided with magnetism.

When the main body part is of a straight shank type structure, the bit mounting part 1301 is coaxially matched with the bottom round hole 205 of the straight shank type body, and in order to enable the bit mounting part 1301 to smoothly rotate in the bottom round hole 205, the bit mounting part and the bottom round hole are matched through a second bearing 14.

When the main part is the rifle type structure, criticize first installation department 1301 with the coaxial cooperation of body of a gun bottom round hole 3205 of body of a gun portion 32, in order to make criticize first installation department 1301 can in smooth rotation in the body of a gun bottom round hole 3205, cooperate through second bearing 14 between the two.

Screen display module implementation mode

Preferably, the screen display module 9 is disposed on the straight shank type body or the gun body portion 32, and the screen display module 9 is connected to the control module and is configured to display a current electric quantity, a charging state, and a currently set value of a maximum output torque of the driving module. Preferably, the screen display module 9 can also be used to display system parameters such as system time, forward and reverse rotation states of the driving module, and the like.

LED Lamp set implementation mode

Preferably, the electric wire-binding screwdriver further comprises an LED lamp set 26 connected to the control module, wherein the LED lamp set 26 is preferably disposed at a lower end position of the straight-handle body or the gun body 32, and is used for providing illumination for a head position of the replacement bit during screwing or electric wire-binding operation, so as to facilitate screwing or electric wire-binding operation in the case of dim ambient light.

Electric wire binding operation embodiment

As shown in fig. 1, 2, 12 and 13, a method of using the present invention as an electric wire binder and a principle of pre-tightening wires will be described below, taking an example of binding a plastic hose 10 to a cylindrical object 11 with a wire 6. In the following description, in a preferred embodiment of the present invention, the winding structure is an open slot disposed at two ends of the rotating shaft portion 5, and the rotating shaft portion 5 is detachably mounted in the rotating shaft portion mounting hole 402. The specific steps and principles are as follows:

step 1, folding the metal wire in half, then sleeving the metal wire on an object to be bundled and primarily tightening: firstly, a plastic hose 10 is sleeved on a cylindrical object 11, then an iron wire 6 is folded in half, two ends of the folded iron wire 6 are respectively called a bending end 606 and a double-end, the bending end 606 is the part of the iron wire 6 which is folded in half, the double-end is the end where two free ends of the folded iron wire 6 are located and comprises a first free end 601 and a second free end 602, the folded iron wire 6 is wound for a circle along the part of the plastic hose 10 which is overlapped with the cylindrical object 11, then the double-end of the iron wire 6 passes through a gap at the bending end 606, and the double-end is pulled forcefully to be primarily tightened;

step 2, the electric wire bundling device is used for bundling and binding: the wire clamping batch head 3 is installed in the batch head installation part 1301 in a recommended posture, the rotating shaft part 5 is installed in the rotating shaft part installation hole 402, two iron wire free ends at two ends of the iron wire 6 are respectively placed in open grooves at two ends of the rotating shaft part 5, then the wire clamping groove 301 of the wire clamping batch head 3 is used for clamping and tightly abutting against the bending end 606 of the iron wire 6, then the driving module is rotated forwards or backwards through the forward and reverse rotation control unit, the driving module starts to drive the rotating shaft part 5 to rotate around the rotating shaft axis, at the moment, the two free ends of the iron wire 6 respectively start to be wound on cylindrical sections at two ends of the rotating shaft part 5 due to the constraint of the open grooves, fig. 1 and fig. 2 show the situation that the first free end 601 and the second free end 602 of the iron wire 6 just start to be wound in a bending manner along with the rotation of the rotating shaft part 5, the first free end 601 in the drawing starts to have a first bending part 605, and the second free end starts to have a second bending part 603. As the rotation progresses, the length of the iron wire wound around the rotating shaft 5 increases gradually, and the length of the part of the iron wire not wound around the rotating shaft 5 becomes shorter accordingly, so that the iron wire wound around the plastic hose 10 starts to tighten gradually, the part of the iron wire wound around the plastic hose 10 is called as a binding section 604 of the iron wire 6, and the tightening force of the binding section 604 is increased by the driving module continuing to apply the rotation torque until the limit output torque of the driving module is reached or the iron wire 6 is pulled apart. In practical applications, unless the wire 6 is too thin, the binding force is not generally as high as the wire 6 is broken, and the maximum binding stress can be provided according to how much rotation torque the driving module can output. When the bundling strength reaches the actual requirement, the main body portion is pulled in the direction opposite to the direction when the double-end passes through the bent end 606, that is, in the direction of the hollow arrow in fig. 1 or fig. 2, because the wire clamping groove 301 also clamps the bent end 606 of the iron wire 6 at this time, the main body portion rotates around the wire clamping groove 301, so that the sections of the two free ends of the iron wire 6 are tightened but not wound around the rotating shaft portion 5 are driven to rotate along with the main body portion, and after the main body portion rotates to a certain degree, the part of the iron wire close to the bent end 606 is in the shape of a barb to hook the bent end 606 of the iron wire 6, so that the bundling fixation is realized, and the wire section in the shape of the barb is called as a fixed barb and comprises a first fixed barb 607 and a second fixed barb 608. And (3) cutting off redundant free end iron wires near the fixed barb by using pliers, and knocking the fixed barb to be flat, thereby completing the whole bundling process.

In the process of bundling by means of the wire bundling machine, the iron wire 6 is basically only subjected to tensile stress in the length direction and is basically not subjected to torsional shear stress, in addition, the deformation degree of the iron wire 6 is not severe, and the deformation is basically continuous and smooth, compared with the severe stress working condition of the torsional shear stress caused by twist torsion in the background technology, the stress working condition of the iron wire 6 is much better in the invention, so that the wire bundling machine with the same strength can provide larger bundling force. According to experimental verification, the binding force of the binding method can easily meet the requirement.

It should be noted that the directions mentioned in the present invention are only used to describe the orientation of a certain structure or component relative to another structure or component, if the whole reference system or coordinate system is changed, the orientation of a certain structure or component relative to another structure or component will also change correspondingly with the change of the reference system or coordinate system, and if the orientation of a certain structure or component relative to another structure or component is changed by simply changing the reference system or coordinate system, it should also fall into the protection scope of the present invention.

Claims

1. An electric wire binding screwdriver can assist in providing enough tightening force and enable the binding effect to be neat and attractive when other objects are bound by metal wires, and is characterized by comprising a main body part, a plurality of replacement batch heads, a rotating shaft part (5), a driving module, a power output switching module, a control module and a power module, wherein the main body part is provided with a batch head mounting part (1301), the replacement batch heads at least comprise a wire clamping batch head (3), the replacement batch heads can be mounted on the main body part through the batch head mounting part (1301), the rotating shaft part (5) is provided with a wire winding structure,

the electric wire binding screwdriver comprises an electric wire binding device mode and an electric screwdriver mode, the two modes are switched by the power output switching module,

in the mode of the electric wire bundling device, the rotating shaft part (5) is driven to rotate by the driving module, the replacement batch head and the batch head mounting part (1301) are restrained by the power output switching module and do not rotate, when one end of the metal wire is restrained and the other end of the metal wire is placed in the winding structure, the winding structure can generate winding acting force on the metal wire along with the rotation of the rotating shaft part (5), so that the metal wire is wound on the rotating shaft part (5);

in the electric screwdriver mode, the bit mounting part (1301) rotates around the axis of the bit mounting part relative to the main body part under the driving of the driving module, so that the replacement bit is driven to rotate;

the wire clamping batch head (3) is used for clamping the metal wire when being bundled and restraining the radial freedom degree of the clamped part of the metal wire, the control module is used for controlling the running state of the driving module, and the power supply module is used for supplying power.

2. The electric wire screwdriver as recited in claim 1, wherein the main body portion is of a straight shank type structure, and the bit mounting portion (1301) is located at a bottom end of the main body portion.

3. The electric wire binding screwdriver according to claim 1, wherein the main body part is of a gun-type structure and comprises a holding part (33), a gun body part (32) and a gun muzzle end (3204), and the batch head mounting part (1301) is located at the gun muzzle end (3204) of the main body part.

4. The electric wire binding screwdriver according to claim 1, wherein the head of the wire clamping batch head (3) is provided with a wire clamping groove (301), and the wire clamping groove (301) is used for clamping the metal wire during binding.

5. The screwdriver according to claim 4, wherein the wire-clamping batch heads (3) have a plurality of specifications, and the wire-clamping grooves (301) of each specification of the wire-clamping batch heads (3) are correspondingly matched with wires in different diameter ranges.

6. The electric wire binding screwdriver according to claim 1, wherein the rotation axis of the rotating shaft part (5) is perpendicular to the rotation axis of the screwdriver head installation part (1301), and the rotating shaft part (5) and the main body part are detachably arranged.

7. The electric wire binding screwdriver according to claim 1, wherein the driving module comprises a motor (2202), a speed reduction module and a transmission module, wherein the power for driving the rotation of the rotating shaft part (5) is output by the motor (2202), is reduced in speed by the speed reduction module and is transmitted to the rotating shaft part (5) by the transmission module, so that the rotating shaft part (5) is driven to rotate.

8. The electric wire-binding screwdriver according to claim 7, wherein the electric motor (2202) comprises a motor output shaft, the speed reduction module comprises a first output shaft (2203), the first output shaft (2203) is coaxial with the motor output shaft, the transmission module is a vertical bevel gear set comprising a first bevel gear (21) and a second bevel gear (20), the first bevel gear (21) is coaxially mounted on the first output shaft (2203), the second bevel gear (20) is coaxially mounted with the rotating shaft (5), the first bevel gear (21) is vertically meshed with the second bevel gear (20), the power output by the first output shaft (2203) is output to the rotating shaft (5) after being vertically shifted through the vertical bevel gear set, the power output switching module comprises a third bevel gear (19), a clutch shaft (15), a constraint frame (16), the constraint frame (16) can drive the shaft (15) to move up and down, but the constraint frame (16) is not rotatable, the third bevel gear (19) is meshed with the second bevel gear (20), and the constraint frame (16) is driven by the third bevel gear (19) in a clutch mode that the third bevel gear (19) is meshed with the third bevel gear (19) and the third bevel gear (1301) is connected with the rotating shaft (19), thereby realizing the transmission of the power of the first output shaft (2203) to the bit mounting part (1301); when the mode of the electric screwdriver is switched to the mode of the electric wire bundling device, the clutch shaft (15) is driven by the constraint frame (16) to disconnect the rotating shaft of the third bevel gear (19) from the rotating shaft of the bit mounting part (1301), so that the path of power transmitted from the first output shaft (2203) to the bit mounting part (1301) is cut off, and at the moment, the constraint frame (16) limits the rotation freedom degree of the rotating shaft of the bit mounting part (1301) through non-rotation matching between the constraint frame and the rotating shaft of the bit mounting part (1301).

9. The electric wire binding screwdriver according to claim 1, wherein the wire winding structure is an open slot arranged at two ends of the rotating shaft part (5), the open end of the open slot is positioned at the end part of the rotating shaft part (5), and the slot direction of the open slot is parallel to the rotating shaft center line of the rotating shaft part (5).

10. The electric wire binding screwdriver according to claim 1, wherein the wire winding structure is wire holes arranged at two ends of the rotating shaft part (5), the axis of the wire hole is perpendicular to the axis of the rotating shaft part (5), and the metal wire can pass through the wire holes.

11. The electric wire binding screwdriver according to claim 1, wherein the wire winding structure is a hook-shaped part arranged at both ends of the rotating shaft part (5), the hook-shaped part is provided with a wire inlet, and the wire can be put into the hook-shaped part from the wire inlet.