CN110976744B

CN110976744B - Novel screw heading device and cold heading processing method thereof

Info

Publication number: CN110976744B
Application number: CN201911309026.3A
Authority: CN
Inventors: 高东春
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2021-07-20
Anticipated expiration: 2039-12-18
Also published as: CN110976744A

Abstract

The invention discloses a novel screw heading device and a cold heading processing method thereof, wherein the device comprises a device base frame, a forming assembly arranged at the left end of the device base frame, a material moving assembly arranged at the right end of the forming assembly, a feeding assembly arranged on the device base frame and positioned at the rear end of the material moving assembly, a main shaft assembly arranged on the device base frame and positioned at the right end of the material moving assembly, an adjusting assembly positioned between the main shaft assembly and the material moving assembly, and a material pushing assembly positioned at the right side of the main shaft assembly; the molding assembly is provided with a first female die, a second female die and a third female die; the material moving assembly comprises a first fixing hole, a second fixing hole, a third fixing hole and a moving mechanism, wherein the first fixing hole, the second fixing hole and the third fixing hole are used for being matched with the first female die, the second female die and the third female die respectively, and the moving mechanism is used for moving the metal section located at the position of the feeding assembly to the first fixing hole, moving the metal section located at the first fixing hole to the second fixing hole and moving the metal section located at the second fixing hole to the third fixing hole in the working cycle.

Description

Novel screw heading device and cold heading processing method thereof

Technical Field

The invention relates to the technical field of cold heading equipment, in particular to a novel screw heading device and a cold heading processing method thereof.

Background

In the prior art, a screw heading machine belongs to cold heading equipment, has the functions of punching a one-die two-punch product, and is mainly used for forming the head of a screw product. The production rate can reach about 200 granules per minute, and the method belongs to a more advanced product in the prior art. Various metal materials can be upset: the material is common steel, carbon steel, stainless steel, copper, aluminum, alloy steel and the like, and has wide application. The screw heading machine can be used for manufacturing common self-tapping screws, electric appliance screws, miniature screws, internal and external hexagon bolts, self-drilling screws, fiberboard screws and other common products, and can also be used for heading other non-standard special-shaped hardware products if a male die ejection device (PKO) is additionally arranged.

Today, the demand of industrial capacity is increasingly vigorous, and the traditional screw heading machine cannot meet the current market demand due to a single-grain processing mode.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Based on the reasons, the applicant provides a novel screw heading device and a cold heading processing method thereof.

Disclosure of Invention

In order to meet the above requirements, a first object of the present invention is to provide a novel screw heading device.

The second purpose of the invention is to provide a cold heading processing method for the screw head.

In order to achieve the purpose, the invention adopts the following technical scheme:

on one hand, the invention provides a novel screw heading device, which comprises a device base frame, a forming assembly, a material moving assembly, a material feeding assembly, a main shaft assembly, an adjusting assembly and a material pushing assembly, wherein the forming assembly is arranged at the left end of the device base frame and can move transversely;

the molding assembly is provided with a first female die, a second female die and a third female die;

the material moving assembly comprises a first fixing hole, a second fixing hole and a third fixing hole which are respectively matched with the first female die, the second female die and the third female die, and a moving mechanism which is used for moving the metal section positioned at the position of the feeding assembly to the first fixing hole, moving the metal section positioned at the first fixing hole to the second fixing hole and moving the metal section positioned at the second fixing hole to the third fixing hole during the working cycle;

the pushing assembly comprises a first pushing part, a second pushing part and a third pushing part which are respectively used for pushing metal profiles in the first fixing hole, the second fixing hole and the third fixing hole;

the adjusting assembly comprises a second transmission mechanism for adjusting the moving mechanism to clamp or loosen the metal section;

the main shaft assembly comprises a rotating main shaft, a first cam which is arranged on the rotating main shaft and is in transmission connection with the moving mechanism, and a second cam which is arranged on the rotating main shaft and is in connection with the second transmission mechanism.

In a possible embodiment, the inner diameter of the first concave die is larger than the opening diameter, the bottom of the second concave die is provided with an arc shape, and the third concave die is the same as the head of the screw in shape.

In one possible embodiment, the moving mechanism includes a mechanism body, and three holding portions which are mounted to the mechanism body and are rotatable; the mechanism body is connected with a first transmission mechanism, and the first transmission mechanism drives the mechanism body to move back and forth.

In one possible embodiment, the clamping part comprises a rotating block, a return spring connected with the rotating block, and a clamping structure connected with the return spring; the clamping structure is intermittently connected with the adjusting component and is used for intermittently rotating the rotating block to clamp or loosen the metal section.

In a possible embodiment, the second transmission mechanism comprises a rotating wheel structure and a swinging block arranged at one end of the material moving assembly close to the spindle assembly, the clamping part clamps the metal section when the swinging block is in contact with the clamping structure, and the clamping part releases the metal section when the swinging block is out of contact with the clamping structure.

In a possible embodiment, the rocking block is provided with an extension section which abuts against the blocking structure, and when the rocking block is driven by the second cam of the main shaft assembly, the extension section is out of contact with or abuts against the blocking structure, and the clamping part loosens or clamps the metal section.

In a possible embodiment, the first transmission mechanism comprises a trigger structure arranged above the first cam, the trigger structure is connected with a belt pulley, the belt pulley is in transmission connection with a moving mechanism, the first cam rotates for one circle, and the moving mechanism moves forward or backward.

In a possible embodiment, the pushing assembly further includes a first rotating mechanism, a second rotating mechanism, and a third rotating mechanism for driving the first pushing portion, the second pushing portion, and the third pushing portion, respectively.

In one possible embodiment, the first rotating mechanism, the second rotating mechanism and the third rotating mechanism are in contact with the first pushing part, the second pushing part and the third pushing part for a time interval.

In another aspect, the invention further provides a screw head cold heading processing method, and the novel screw heading device based on any one of the above methods comprises the following steps:

the material moving assembly obtains a preliminarily cut metal section from the feeding assembly, the spindle assembly rotates, and the swinging block is driven by a second cam of the spindle assembly to enable the clamping part to clamp the metal section and drive the moving mechanism to return to the original position;

the forming assembly moves towards the material moving assembly, the first female die presses the metal section to the first fixing hole, and the metal section positioned in the first fixing hole is subjected to cold heading forming;

the first pushing part pushes out the metal section positioned in the first fixing hole, the spindle assembly rotates, the swinging block is driven by a second cam of the spindle assembly, the first clamping part clamps the metal section from the feeding assembly, the second clamping part clamps the metal section positioned in the first fixing hole, and the moving mechanism is driven to return to the original position;

the forming assembly moves towards the material moving assembly, the first female die presses the metal section at the first clamping part to the first fixing hole, and the metal section positioned in the first fixing hole is subjected to cold heading forming; the second female die presses the metal section of the second clamping part to the second fixing hole, and the metal section positioned in the second fixing hole is subjected to cold heading forming;

the first pushing part and the second pushing part push out the metal profiles positioned in the first fixing hole and the second fixing hole, the spindle assembly rotates, the swinging block is driven by a second cam of the spindle assembly, the first clamping part clamps the metal profiles from the feeding assembly, the second clamping part clamps the metal profiles positioned in the first fixing hole, the third clamping part clamps the metal profiles positioned in the second fixing hole, and the moving mechanism is driven to return to the original position;

the forming assembly moves towards the material moving assembly, the first female die presses the metal section at the first clamping part to the first fixing hole, and the metal section positioned in the first fixing hole is subjected to cold heading forming; the second female die presses the metal section of the second clamping part to the second fixing hole, and the metal section positioned in the second fixing hole is subjected to cold heading forming; the third female die presses the metal section of the third clamping part to the third fixing hole, and the metal section positioned in the third fixing hole is subjected to cold heading forming to finish screw heading;

and after the metal section of the third fixing hole is formed by cold heading, the third pushing part pushes out the third fixing hole, and the metal section is not clamped.

Compared with the prior art, the invention has the beneficial effects that: this scheme can once process the head of a plurality of (above-mentioned 3 only as the example) screws, and the machine of taking lead greatly improved production efficiency for the screw among the prior art, this device full automated production moreover, work efficiency is high, and easy operation is understandable, has reduced the human cost, has brought the facility for enterprise's production and management.

The invention is further described below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural diagram of a novel screw heading device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a molding assembly of the apparatus of FIG. 1;

FIG. 3 is a schematic diagram of the material moving assembly of the apparatus of FIG. 1;

FIG. 4 is a schematic diagram of the pusher assembly of the apparatus of FIG. 1;

FIG. 5 is a schematic view of the screw state of the tooling of the molding assembly of the apparatus of FIG. 1;

FIG. 6 is a schematic diagram of the adjustment assembly of the apparatus of FIG. 1;

fig. 7 is a schematic view of a first transmission mechanism of the spindle assembly of the apparatus of fig. 1.

Reference numerals

100 device base frame 200 forming assembly

201 first concave die 202 second concave die

203 third concave die 204 sliding positioning structure

300 move material subassembly 301 first fixed orifices

302 second fixing hole 303 third fixing hole

304 moving mechanism 305 holding part

3051 turning block 3052 reset spring

3053 clamping structure 3054 clamping structure

3055 fixed clamping structure 400 feeding assembly

500 spindle assembly 501 rotating spindle

502 first cam 503 second cam

504 first transmission 505 trigger structure

506 Pulley 507 ratchet

508 drive rod 600 adjustment assembly

601 extension of the second transmission mechanism 602

603 rotating shaft 604 rocking block

700 push away the first pusher of the assembly 701

702 second pushing unit 703 third pushing unit

704 first rotation mechanism 705 second rotation mechanism

706 third rotation mechanism

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

On one hand, as shown in fig. 1 and fig. 2, the invention provides a novel screw heading device, which includes a device base frame 100, a forming assembly 200 mounted at the left end of the device base frame 100 and capable of moving laterally, a material moving assembly 300 mounted at the right end of the forming assembly 200, a feeding assembly 400 mounted at the device base frame 100 and located at the rear end of the material moving assembly 300, a spindle assembly 500 mounted at the device base frame 100 and located at the right end of the material moving assembly 300, an adjusting assembly 600 located between the spindle assembly 500 and the material moving assembly 300, and a material pushing assembly 700 located at the right side of the spindle assembly 500;

in the embodiment shown in fig. 2, the forming assembly 200 is provided with a first concave die 201, a second concave die 202 and a third concave die 203; the shapes of the female dies of the first female die 201, the second female die 202 and the third female die 203 are different, and a complete screw head is processed by using three forming operations, so that material damage caused by one-step forming can be prevented.

As an alternative embodiment, the forming assembly 200 can move left and right on the device base frame to achieve the effect of cold heading forming, and therefore, the lower end of the forming assembly 200 is provided with the sliding positioning structure 204, and the sliding positioning structure 204 is in clamping fit with the device base frame 100 to achieve positioning during a sliding process.

In the embodiment shown in fig. 3, the material moving assembly 300 includes a first fixing hole 301, a second fixing hole 302, a third fixing hole 303 for respectively matching with the first concave die 201, the second concave die 202, and the third concave die 203, and a moving mechanism 304 for moving the metal section located at the feeding assembly 400 to the first fixing hole 301, moving the metal section located at the first fixing hole 301 to the second fixing hole 302, and moving the metal section located at the second fixing hole 302 to the third fixing hole 303 during the work cycle;

wherein, the moving mechanism 304 can move back and forth on the material moving component 300.

The pushing assembly 700 comprises a first pushing part 701, a second pushing part 702 and a third pushing part 703, which are respectively used for pushing metal profiles in the first fixing hole 301, the second fixing hole 302 and the third fixing hole 303;

the adjusting assembly 600 comprises a second transmission mechanism 601 for adjusting the moving mechanism to clamp or release the metal section;

the spindle assembly 500 includes a rotating spindle 501, a first cam 502 mounted on the rotating spindle 501 and drivingly connected to the moving mechanism 304, and a second cam 503 mounted on the rotating spindle 501 and drivingly connected to the second driving mechanism 601.

As a preferred embodiment, the number 3 can be replaced by a plurality, aiming at improving the efficiency of processing the screw head by using the device of the scheme, and the scheme only performs the embodiment for 3 female dies.

As a preferred embodiment, as shown in fig. 5, the head structures of the screw after the molding process of the first concave die 201, the second concave die 202 and the third concave die 203 are A, B, C, so that the inner diameter of the first concave die 201 is larger than the opening diameter, the bottom of the second concave die 202 is provided with an arc shape, and the third concave die 203 and the head of the screw have the same shape.

In other alternative embodiments, the shapes of the first concave die 201, the second concave die 202 and the third concave die 203 can be adjusted according to the needs of users, and the shapes are only used as an example, and do not represent that the present solution can be implemented only in the shapes.

As shown in fig. 3, in a preferred embodiment, the moving mechanism 304 includes a mechanism body, and three clamping portions 305 mounted on the mechanism body and rotatable; the mechanism body is connected with a first transmission mechanism 504 (see fig. 7), and the first transmission mechanism 504 drives the mechanism body to move forward and backward.

As shown in fig. 3, in a preferred embodiment, the clamping portion 305 includes a rotation block 3051, a return spring 3052 coupled to the rotation block 3051, and a detent structure 3053 coupled to the return spring 3052;

the detent structure 3053 is intermittently coupled to the adjustment assembly 600 for intermittently rotating the turning block 3051 to grip or release the metal bar. When the adjustment assembly 600 triggers the blocking structure 3053 to no longer be in the blocking position, the turning block 3051 obtains a movable position, so that the next step of gripping a new metal profile or releasing a present metal profile can be carried out.

Specifically, the lower end of the rotating block 3051 is provided with a clamping structure 3054, the edge of the clamping structure 3054 is provided with a fixed clamping structure 3055 which is not rotatable but can move back and forth along with the structure body, and the clamping structure 3054 is matched with the fixed clamping structure 3055 to achieve the purpose of clamping the metal section.

In a preferred embodiment, the movement direction of the locking structure 3053 is limited by the limit structure 3056, and a space for rotation is provided between the limit structure 3056 and the main body, so as to prevent the locking structure 3053 from being displaced by the force of the adjusting assembly 600 and affecting the processing.

As shown in fig. 3 and fig. 6, as an alternative embodiment, the second transmission mechanism 601 includes a rotating cam structure, a swing block 604 (belonging to a part of the adjusting assembly 600) mounted at one end of the material moving assembly 300 near the main shaft assembly 500, when the swing block 604 (as shown, the swing block 604 is provided with an extension 602, and the extension 602) contacts with the detent structure 3053, the clamping portion 305 clamps the metal section, and when the swing block 604 is out of contact with the detent structure 3053, the clamping portion 305 releases the metal section.

Specifically, the swinging block 604 and the adjusting assembly are rotatably connected through the rotating shaft 603, and an intermittent connection is realized, and the extension section 602 can reach the moving structure 304 through the internal cavity of the material moving assembly 300 and abut against the blocking structure 3053, when the swinging block 604 is driven by the second cam 503 of the main shaft assembly, the extension section 602 is out of contact with or abuts against the blocking structure 3053 (intermittent connection), and the clamping portion 305 releases or clamps the metal section. Due to the pulling force of the return spring 3052, the blocking structure 3053 is pulled up, so that the operations of clamping and loosening the metal section bar are realized.

In the embodiment shown in fig. 7, the first transmission mechanism 504 includes a trigger structure 505 disposed above the first cam 502, a pulley 506 is connected to the trigger structure 505, the pulley 506 is in transmission connection with the moving mechanism 304 (see fig. 3), the first cam 502 rotates one turn, and the moving mechanism 304 moves one forward or one backward. Wherein, the triggering structure 505 rotates synchronously with the belt pulley 506, in particular to a small wheel connected with the belt pulley 506.

As an alternative embodiment, the pulley 506 and the moving mechanism 304 can be converted into a linear motion of the moving mechanism 304 by means of the ratchet 507 and the moving mechanism 304 via the driving rod 508.

In the embodiment shown in fig. 4, the pushing assembly 700 further includes a first rotating mechanism 704, a second rotating mechanism 705, and a third rotating mechanism 706 for driving the first pushing portion 701, the second pushing portion 702, and the third pushing portion 703, respectively, wherein the first rotating mechanism 704, the second rotating mechanism 705, and the third rotating mechanism 706 can be driven by a stepping motor and perform reciprocating motion in a belt transmission manner or a gear transmission manner.

In a preferred embodiment, the first rotating mechanism 704, the second rotating mechanism 705 and the third rotating mechanism 706 are in contact with the first pushing part 701, the second pushing part 702 and the third pushing part 703 for a time interval, so that the moving mechanism 304 can clamp or release the metal section.

The invention also provides a cold heading processing method of the screw head, based on the novel screw heading device, and combined with the figures 1-7, the method comprises the following steps:

the material moving assembly 300 obtains the preliminarily cut metal section from the feeding assembly 400, the spindle assembly 500 rotates, and the swinging block 604 is driven by the second cam 503 of the spindle assembly 500, so that the clamping part 305 clamps the metal section and drives the moving mechanism 304 to return to the original position;

the forming assembly 200 moves towards the material moving assembly 300, the first concave die 201 presses the metal section to the first fixing hole 301, and the metal section positioned in the first fixing hole 301 is subjected to cold heading forming;

the first pushing part 701 pushes out the metal section positioned in the first fixing hole 301, the spindle assembly 500 rotates, the swinging block 604 is driven by the second cam 503 of the spindle assembly 500, the first clamping part 305 clamps the metal section from the feeding assembly 400, the second clamping part 305 clamps the metal section positioned in the first fixing hole 301, and the moving mechanism 304 is driven to return to the original position;

the forming assembly 200 moves towards the material moving assembly 300, the first concave die 201 presses the metal section bar of the first clamping part 305 to the first fixing hole 301, and the metal section bar positioned in the first fixing hole 301 is subjected to cold heading forming; the second concave die 202 presses the metal section bar of the second clamping part 305 to the second fixing hole 302, and the metal section bar positioned in the second fixing hole 302 is subjected to cold heading forming;

the first pushing part 701 and the second pushing part 702 push out the metal profiles positioned in the first fixing hole 301 and the second mounting hole 02, the spindle assembly 500 rotates, the swing block 604 is driven by a second cam 503 of the spindle assembly 500, the first clamping part 305 clamps the metal profile from the feeding assembly 400, the second clamping part 305 clamps the metal profile positioned in the first fixing hole 301, the third clamping part 305 clamps the metal profile positioned in the second fixing hole 302, and the moving mechanism 304 is driven to return to the original position;

the forming assembly 200 moves towards the material moving assembly 300, the first concave die 201 presses the metal section bar of the first clamping part 305 to the first fixing hole 301, and the metal section bar positioned in the first fixing hole 301 is subjected to cold heading forming; the second concave die 202 presses the metal section bar of the second clamping part 305 to the second fixing hole 302, and the metal section bar positioned in the second fixing hole 302 is subjected to cold heading forming; the third female die 203 presses the metal section of the third clamping part 305 to the third fixing hole 303, and performs cold heading forming on the metal section positioned in the third fixing hole 303 to complete screw heading;

after the metal profile of the third fixing hole 301 is formed by cold heading, the third pushing portion 703 pushes out the third fixing hole 303, so that the metal profile is not clamped.

Specifically, the moving frequency of the moving mechanism 304 is controlled by the trigger 505, the first cam 502 of the spindle assembly 500 rotates once, and the moving mechanism 304 moves forward or backward once.

The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. A novel screw heading device is characterized by comprising a device base frame, a forming assembly which is arranged at the left end of the device base frame and can move transversely, a material moving assembly which is arranged at the right end of the forming assembly, a feeding assembly which is arranged on the device base frame and is positioned at the rear end of the material moving assembly, a main shaft assembly which is arranged on the device base frame and is positioned at the right end of the material moving assembly, an adjusting assembly which is positioned between the main shaft assembly and the material moving assembly, and a material pushing assembly which is positioned at the right side of the main shaft assembly;

2. The novel screw heading device according to claim 1, wherein the inner diameter of the first concave die is larger than the opening diameter, the bottom of the second concave die is provided with an arc shape, and the third concave die is the same as the head of the screw in shape.

3. The novel screw heading device according to claim 1, wherein the moving mechanism comprises a mechanism body and three rotatable clamping portions mounted on the mechanism body; the mechanism body is connected with a first transmission mechanism, and the first transmission mechanism drives the mechanism body to move back and forth.

4. The novel screw heading device according to claim 3, wherein the clamping portion comprises a rotating block, a return spring connected with the rotating block, and a clamping structure connected with the return spring; the clamping structure is intermittently connected with the adjusting component and is used for intermittently rotating the rotating block to clamp or loosen the metal section.

5. The novel screw heading device according to claim 4, wherein the second transmission mechanism comprises a rotary cam structure and a rocking block mounted at one end of the material moving assembly close to the spindle assembly, the clamping portion clamps the metal section when the rocking block contacts the clamping structure, and the clamping portion releases the metal section when the rocking block is separated from the clamping structure.

6. The novel screw heading device according to claim 5, wherein the rocking block is provided with an extension section which abuts against the retaining structure, and when the rocking block is driven by the second cam of the main shaft assembly, the extension section is out of contact with or abuts against the retaining structure, and the clamping portion loosens or clamps the metal section.

7. The novel screw heading device according to claim 3, wherein the first transmission mechanism comprises a trigger structure arranged above the first cam, the trigger structure is connected with a belt pulley, the belt pulley is in transmission connection with a moving mechanism, the first cam rotates one circle, and the moving mechanism moves forward or backward.

8. The novel screw heading device according to claim 1, wherein the pushing assembly further comprises a first rotating mechanism, a second rotating mechanism and a third rotating mechanism for driving the first pushing portion, the second pushing portion and the third pushing portion respectively.

9. The novel screw heading device according to claim 8, wherein the first rotating mechanism, the second rotating mechanism and the third rotating mechanism are in contact with the first pushing part, the second pushing part and the third pushing part for a time interval.

10. A cold heading processing method for a screw head is characterized in that the novel screw heading device based on claim 6 comprises the following steps: