A forming device for CNC machining of metal hardware

Abstract

The present invention is applicable to the technical field of CNC machining, and provides a forming device for CNC machining of metal hardware, comprising an L-shaped plate, a single-sided clamping mechanism installed on the L-shaped plate and in contact with a hardware body, a rotary bending mechanism installed on a support rod on the side of the L-shaped plate, and bends the hardware body during the rotation process, an inner trimming mechanism connected to a movable rod in the rotary bending mechanism, the inner trimming mechanism also moves synchronously with the movable rod when the rotary bending mechanism is deflected, and the synchronous fine-tuning mechanism continuously performs micro-impacts on the outer side of the hardware body when rotating with the movable rod. The forming device is convenient for fixing the hardware body through the set single-sided clamping mechanism, and can realize the forming of hardware bodies of various thicknesses. During forming, not only can the auxiliary forming position be freely controlled, but also the size of the bent part can be automatically corrected during the auxiliary process, thereby maximizing the forming accuracy of the hardware body.

Description

Technical Field

[0001] The invention belongs to the technical field of numerical control machining, and in particular relates to a forming device for numerical control machining of metal hardware. Background Art

[0002] Hardware refers to tools made of gold, silver, copper, iron, tin and other metals through processing and casting. They are used to fix things, process things, and decorate. In the process of metal hardware production and manufacturing, they need to be CNC formed. When the existing CNC forming equipment is bending and forming metal parts, the drive mechanism is started to operate, and the drive mechanism drives the positioning mechanism to move, and the positioning mechanism presses and fixes one end of the hardware. When bending is required, the hardware moves to one side of the fixed pressure wheel through the feeding trough, and the hydraulic cylinder is started to drive the drive block, the drive trough, the drive rod and the pressure plate to move. The hardware is squeezed and positioned using the pressure plate and the pad, and the motor is started. The motor uses the second gear plate to drive the rotating drum, the first gear plate and the dynamic pressure wheel to rotate. The dynamic pressure wheel cooperates with the fixed pressure wheel to achieve the bending and forming of the hardware.

[0003] However, during the bending process of hardware, the bending position cannot be accurately controlled. After bending, the hardware is prone to slight rebound, which will seriously affect the accuracy of the finished product after the hardware is formed, making it difficult for the metal hardware to be used normally. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a forming device for CNC machining of metal hardware, aiming to solve the problems existing in the above-mentioned background technology.

[0005] The embodiment of the present invention is implemented as follows: a forming device for CNC machining of metal hardware, including an L-shaped plate, and also including:

[0006] A hardware body, the end of which is arranged in a groove formed on the L-shaped plate;

[0007] A single-sided clamping mechanism, wherein the single-sided clamping mechanism is installed on the L-shaped plate, and the movable end of the single-sided clamping mechanism moves along the groove, and the movable end of the single-sided clamping mechanism also contacts the side surface of the hardware body, so as to realize the fixing work of the hardware body;

[0008] A rotating bending mechanism, which is installed on the support rod on the side of the L-shaped plate, and is driven by an external drive motor to bend the hardware body during rotation;

[0009] A guide rail, the guide rail is fixedly installed on the side of the L-shaped plate, the guide rail is slidably connected to the movable rod in the rotating bending mechanism, and the limit groove provided on the guide rail is slidably connected to the limit block installed in the movable rod to ensure the stability of the movement;

[0010] An inner side trimming mechanism, wherein the inner side trimming mechanism is connected to a movable rod in the rotary bending mechanism, and the inner side trimming mechanism also moves synchronously with the movable rod when the rotary bending mechanism is deflected;

[0011] A synchronous fine-tuning mechanism is installed at the end of the inner side trimming mechanism and is located on the outer side of the hardware body. The synchronous fine-tuning mechanism continuously performs micro-touch on the outer side of the hardware body when rotating with the movable rod. The synchronous fine-tuning mechanism also cooperates with the inner side trimming mechanism to ensure the molding accuracy of the hardware body.

[0012] Preferably, the single-sided clamping mechanism comprises a rotating shaft 1, a driving gear, an H-shaped plate, a spur gear portion and a toggle frame;

[0013] The h-shaped plate is slidably installed in the L-shaped plate, and a straight tooth portion is provided on one side of the rotating shaft;

[0014] The rotating shaft 1 is rotatably mounted in the L-shaped plate, and a driving gear meshing with the spur gear portion is mounted on the rotating shaft 1 in the L-shaped plate;

[0015] The shifting frame is installed at the end of the rotating shaft 1, and the rotating shaft 1, the driving gear, the spur gear part and the H-shaped plate are driven to move synchronously by rotating the shifting frame.

[0016] Preferably, a plurality of slots are provided on the rotating shaft 1, and the slots are arranged at equal angles. A paddle is also installed on the upper surface of the L-shaped plate, and the free end of the paddle is embedded in the slot to prevent the rotating shaft 1 from rotating.

[0017] Preferably, a protective pad is bonded to the movable end of the H-shaped plate, and the protective pad is made of rubber material.

[0018] Preferably, the rotary bending mechanism comprises a movable rod, a fixed block 1, a movable block 1 and a telescopic member;

[0019] The movable rod is rotatably mounted on the end of the support rod, and a fixing block 1 is fixedly mounted on the inner side of the hardware body on the movable rod;

[0020] A movable block 1 is also installed on the outside of the hardware body, and a transition arc is provided at the end of one side opposite to the fixed block 1 and the movable block 1;

[0021] The movable block 1 is driven by a telescopic member installed in the movable rod, and the telescopic member is electrically connected to a controller at the connection point of the L-shaped plate.

[0022] Preferably, the inner side trimming mechanism comprises a folding rod, a through hole, an inserting rod and a fixing block 2;

[0023] The folding rod is slidably mounted on the movable rod, and the folding rod and the movable rod are provided with through holes of the same aperture and are fixed by an external plug rod;

[0024] The second fixing block is installed on the folding rod, and the second fixing block abuts against the inner side of the hardware body.

[0025] Preferably, the synchronous fine-tuning mechanism comprises a second movable block, a second rotating shaft, a driven gear, a cam, a movable frame and an elastic support member;

[0026] The second rotating shaft is rotatably mounted on the end of the folding rod, and a driven gear is arranged at one end of the second rotating shaft, and the driven gear is meshed with the annular gear portion arranged on the inner side of the guide rail;

[0027] The movable frame is slidably mounted on the folding rod and connected to the elastic support member arranged in the groove on the surface of the folding rod;

[0028] The side surface of the movable frame abuts against a cam fixedly mounted on the other end of the second rotating shaft, and when the cam rotates, the movable frame is pushed to slide along the folding rod. A movable block 2 is also installed at the end of the movable frame, and the movable block 2 abuts against the outer side of the hardware body.

[0029] A forming device for CNC machining of metal hardware provided in an embodiment of the present invention is convenient for fixing the hardware body through the set single-sided clamping mechanism, can effectively avoid loosening during forming, and can realize the forming of hardware bodies of various thicknesses, and has the characteristics of high adaptability; in addition, during forming, not only can the working distance between fixed block two and movable block two and fixed block one be adjusted, and the position of auxiliary forming can be freely controlled, but also the size of the bent part can be automatically corrected during the auxiliary process, so as to avoid errors caused by warping of the hardware body after forming, thereby maximizing the forming accuracy of the hardware body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional structural diagram of a forming device for CNC machining of metal hardware provided by an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0032] Figure 3 A three-dimensional structural diagram of an H-shaped plate in a forming device for CNC machining of metal hardware provided by an embodiment of the present invention;

[0033] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0034] Figure 5 for Figure 1 A partial enlarged view of point C in the middle;

[0035] In the attached drawings: 1-L-shaped plate; 2-hardware body; 3-groove; 4-rotating shaft one; 5-driving gear; 6-h-shaped plate; 7-spur gear; 8-sliding frame; 9-slot; 10-paddle; 11-protective pad; 12-support rod; 13-movable rod; 14-fixed block one; 15-movable block one; 16-telescopic member; 17-guide rail; 18-limiting groove; 19-limiting block; 20-driving motor; 21-folding rod; 22-through hole; 23-insertion rod; 24-fixed block two; 25-movable block two; 26-rotating shaft two; 27-driven gear; 28-cam; 29-movable frame; 30-elastic support member; 100-single-sided clamping mechanism; 200-rotating bending mechanism; 300-inner side trimming mechanism; 400-synchronous fine-tuning mechanism. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] like Figure 1-Figure 5As shown, it is a structural diagram of a forming device for CNC machining of metal hardware provided by an embodiment of the present invention, comprising an L-shaped plate 1, a hardware body 2, a single-sided clamping mechanism 100, a rotating bending mechanism 200, a guide rail 17, an inner side finishing mechanism 300 and a synchronous fine-tuning mechanism 400, wherein the end of the hardware body 2 is arranged in a groove 3 provided on the L-shaped plate 1; the single-sided clamping mechanism 100 is installed on the L-shaped plate 1, and the movable end of the single-sided clamping mechanism 100 moves along the groove 3, and the movable end of the single-sided clamping mechanism 100 also contacts the side of the hardware body 2 to realize the fixing of the hardware body 2; the rotating bending mechanism 200 is installed on the support rod 12 on the side of the L-shaped plate 1, and the rotating bending mechanism 200 is driven by an external driving motor 20, and bends the hardware body 2 during the rotation process. Bend; the guide rail 17 is fixedly installed on the side of the L-shaped plate 1, and the guide rail 17 is slidably connected to the movable rod 13 in the rotating bending mechanism 200, and the limit groove 18 opened on the guide rail 17 is slidably connected to the limit block 19 installed in the movable rod 13 to ensure the stability of the movement; the inner side trimming mechanism 300 is connected to the movable rod 13 in the rotating bending mechanism 200, and the inner side trimming mechanism 300 also moves synchronously with the movable rod 13 when the rotating bending mechanism 200 is deflected; the synchronous fine-tuning mechanism 400 is installed at the end of the inner side trimming mechanism 300 and is located on the outer side of the hardware body 2, and the synchronous fine-tuning mechanism 400 continuously micro-strikes the outer side of the hardware body 2 when rotating with the movable rod 13, and the synchronous fine-tuning mechanism 400 also cooperates with the inner side trimming mechanism 300 to ensure the molding accuracy of the hardware body 2.

[0039] The present application provides a forming device for CNC machining of metal hardware, which is convenient for fixing the hardware body 2 through the set single-sided clamping mechanism 100, can effectively avoid loosening during forming, and can realize the forming of hardware bodies 2 of various thicknesses, and has the characteristics of high adaptability; in addition, during forming, not only can the working distance between the fixed block 24 and the movable block 25 and the fixed block 14 be adjusted, and the position of the auxiliary forming can be freely controlled, but also the size of the bent part can be automatically corrected during the auxiliary process, so as to avoid the error caused by warping of the hardware body 2 after forming, thereby maximizing the forming accuracy of the hardware body 2.

[0040] In one example of the present invention, the hardware body 2 is placed on the groove 3, and one end is fixedly clamped by a single-sided clamping mechanism 100. The inner trimming mechanism 300 is installed on the movable rod 13. During the bending process of the hardware body 2 by the rotary bending mechanism 200, the inner trimming mechanism 300 and the synchronous fine-tuning mechanism 400 move synchronously. Since the synchronous fine-tuning mechanism 400 also engages with the annular tooth portion on the inner side of the guide rail 17, the fixed block 24 cooperates with the movable block 25 to correct the size of the bent hardware body 2.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment of the present invention, the single-sided clamping mechanism 100 includes a rotating shaft 4, a driving gear 5, an H-shaped plate 6, a spur gear portion 7 and a toggle frame 8;

[0042] The h-shaped plate 6 is slidably installed in the L-shaped plate 1, and a straight tooth portion 7 is provided on one side of the rotating shaft 4;

[0043] The rotating shaft 1 4 is rotatably mounted in the L-shaped plate 1, and a driving gear 5 meshing with the spur gear portion 7 is mounted on the rotating shaft 1 4 in the L-shaped plate 1;

[0044] The shifting frame 8 is installed at the end of the rotating shaft 4, and the rotating shaft 4, the driving gear 5, the spur gear portion 7 and the H-shaped plate 6 are driven to move synchronously by rotating the shifting frame 8.

[0045] In one embodiment of the present invention, a protective pad 11 is also bonded to the movable end of the h-shaped plate 6, and the protective pad 11 is made of rubber material and is used to avoid damaging the surface of the hardware body 2 during the process of fixing the hardware body 2; when in use, the hardware body 2 is placed in the groove 3, and the rotating shaft 4 and the driving gear 5 are driven to rotate along the L-shaped plate 1 by rotating the toggle frame 8. Since the driving gear 5 is engaged with the spur gear portion 7, the spur gear portion 7 and the h-shaped plate 6 can be driven to slide along the L-shaped plate 1, and finally the hardware body 2 is fixed and clamped by the arranged h-shaped plate 6, and after the molding of the hardware body 2 is completed, the toggle frame 8 is reversed to make the h-shaped plate 6 separate from the hardware body 2.

[0046] like Figure 2 and Figure 3 As shown, as another preferred embodiment of the present invention, a plurality of slots 9 are provided on the rotating shaft 4, and the slots 9 are arranged at equal angles. A paddle 10 is also installed on the upper surface of the L-shaped plate 1, and the free end of the paddle 10 is embedded in the slot 9 to prevent the rotating shaft 4 from rotating.

[0047] In one embodiment of the present invention, when the rotating shaft 4 rotates along the L-shaped plate 1, the slot 9 moves synchronously therewith. Figure 3 As a reference, when the shaft 14 and the driving gear 5 rotate counterclockwise, the slot 9 drives the paddle 10 to move, and when the shaft 14 rotates clockwise, the paddle 10 is embedded in the slot 9 to prevent the slot 9 from deflecting. When the shaft 14 needs to be unlocked, the paddle 10 is directly pushed outward to disengage its end from the slot 9.

[0048] like Figure 1 and Figure 4 As shown, as another preferred embodiment of the present invention, the rotary bending mechanism 200 includes a movable rod 13, a fixed block 14, a movable block 15 and a telescopic member 16;

[0049] The movable rod 13 is rotatably mounted on the end of the support rod 12, and a fixing block 14 is fixedly mounted on the inner side of the hardware body 2 on the movable rod 13;

[0050] A movable block 15 is also installed on the outside of the hardware body 2, and a transition arc is provided at the end of the fixed block 14 and the movable block 15 on one side opposite to each other, so as to avoid jamming during contact with the hardware body 2;

[0051] The movable block 15 is driven by a telescopic member 16 installed in the movable rod 13 , and the telescopic member 16 is electrically connected to a controller at the connection point of the L-shaped plate 1 .

[0052] In one example of the present invention, the telescopic member 16 in the present application can be actually used with linear drive devices such as air cylinders, hydraulic cylinders, electric cylinders and electric telescopic rods. The external controller is connected to the drive motor 20 and the telescopic member 16 at the same time, and the movable block 15 is pushed to contact the outside of the hardware body 2 by adjusting the elongation of the telescopic member 16. When the drive motor 20 is working, it drives the movable rod 13 to swing smoothly along the guide rail 17, and the movable rod 13 and the movable block 15 move synchronously therewith, thereby realizing the bending work of the hardware body 2.

[0053] like Figure 1 As shown, as another preferred embodiment of the present invention, the inner side trimming mechanism 300 includes a folding rod 21, a through hole 22, an inserting rod 23 and a fixing block 24;

[0054] The folding rod 21 is slidably mounted on the movable rod 13. The folding rod 21 and the movable rod 13 are provided with through holes 22 of the same diameter and are fixed by an external plug rod 23.

[0055] The second fixing block 24 is installed on the folding rod 21 , and the second fixing block 24 abuts against the inner side of the hardware body 2 .

[0056] In one embodiment of the present invention, the folding rod 21 slides along the movable rod 13 as needed, and the distance between the fixed block 24 and the fixed block 14 is changed by adjusting the positions of the relatively arranged through holes 22 on the folding rod 21 and the movable rod 13, and finally fixed by the insertion rod 23, and when the movable rod 13 rotates, the folding rod 21 and the fixed block 24 rotate synchronously therewith.

[0057] like Figure 1 and Figure 5 As shown, as another preferred embodiment of the present invention, the synchronous fine-tuning mechanism 400 includes a second movable block 25, a second rotating shaft 26, a driven gear 27, a cam 28, a movable frame 29 and an elastic support member 30;

[0058] The second rotating shaft 26 is rotatably mounted on the end of the folding rod 21, and a driven gear 27 is arranged at one end of the second rotating shaft 26, and the driven gear 27 is meshed with the annular tooth portion arranged on the inner side of the guide rail 17;

[0059] The movable frame 29 is slidably mounted on the folding rod 21 and connected to the elastic support member 30 arranged in the groove on the surface of the folding rod 21;

[0060] The side surface of the movable frame 29 abuts against the cam 28 fixedly mounted on the other end of the second rotating shaft 26, and pushes the movable frame 29 to slide along the folding rod 21 when the cam 28 rotates. A movable block 25 is also installed at the end of the movable frame 29, and the movable block 25 abuts against the outer side of the hardware body 2.

[0061] In one embodiment of the present invention, when the folding rod 21 rotates, the driven gear 27 rotates accordingly, and since the driven gear 27 is meshed with the annular tooth portion on the inner side of the guide rail 17, the driven gear 27 can be driven to rotate, thereby driving the cam 28 to rotate, and the cam 28 pushes the movable frame 29 and the movable block 25 to move synchronously, and the elastic support member 30 is elastically deformed by the force, thereby preventing the hardware body 2 from warping after bending.

[0062] In summary, when in use, the hardware body 2 is placed in the groove 3, and the rotating frame 8 is rotated to drive the rotating shaft 4 and the driving gear 5 to rotate along the L-shaped plate 1, and the card slot 9 moves synchronously therewith. Figure 3As a reference, when the rotating shaft 4 and the driving gear 5 rotate counterclockwise, the card slot 9 drives the paddle 10 to move, and when the rotating shaft 4 rotates clockwise, the paddle 10 is embedded in the card slot 9 to prevent the card slot 9 from deflecting. Since the driving gear 5 is engaged with the spur gear portion 7, the spur gear portion 7 and the h-shaped plate 6 can be driven to slide along the L-shaped plate 1, and finally the fixed clamping work of the hardware body 2 is completed by the arranged h-shaped plate 6. The folding rod 21 slides along the movable rod 13 as needed, and the fixed position is changed by adjusting the positions of the through holes 22 arranged relatively on the folding rod 21 and the movable rod 13. The spacing between the fixed block 24 and the fixed block 14 is finally fixed by the plug rod 23. The external controller is connected to the drive motor 20 and the telescopic member 16 at the same time, and the movable block 15 is pushed to contact the outside of the hardware body 2 by adjusting the elongation of the telescopic member 16. When the drive motor 20 is working, it drives the movable rod 13 to swing smoothly along the guide rail 17, and the movable rod 13 and the movable block 15 move synchronously therewith, thereby realizing the bending work of the hardware body 2. When the movable rod 13 rotates, the folding rod 21 and the fixed block 24 rotate synchronously therewith. , and because the driven gear 27 is meshed with the annular tooth portion inside the guide rail 17, the driven gear 27 can be driven to rotate, thereby driving the cam 28 to rotate, and the cam 28 pushes the movable frame 29 and the movable block 25 to move synchronously, and the elastic support member 30 is elastically deformed by force, thereby preventing the hardware body 2 from warping after bending, and when the hardware body 2 is formed and the locking of the rotating shaft 4 needs to be released, the paddle 10 is directly pushed outward to make its end part disengage from the card slot 9, and the paddle frame 8 is reversed at this time to make the H-shaped plate 6 disengage from the hardware body 2. The molding device is convenient for fixing the hardware body 2 through the set single-sided clamping mechanism 100, which can effectively avoid loosening during molding, and can realize the molding of hardware bodies 2 of various thicknesses, and has the characteristics of high adaptability; in addition, during molding, not only can the working distance between the fixed block 24 and the movable block 25 and the fixed block 14 be adjusted, and the position of the auxiliary molding can be freely controlled, but also the size of the bent part can be automatically corrected during the auxiliary process, thereby maximizing the molding accuracy of the hardware body 2 and avoiding errors caused by warping of the hardware body 2 after molding.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A forming device for CNC machining of metal hardware, comprising an L-shaped plate, characterized in that: Also includes: A hardware body, the end of which is arranged in a groove formed on the L-shaped plate; A single-sided clamping mechanism, wherein the single-sided clamping mechanism is installed on the L-shaped plate, and the movable end of the single-sided clamping mechanism moves along the groove, and the movable end of the single-sided clamping mechanism also contacts the side surface of the hardware body, so as to realize the fixing work of the hardware body; A rotating bending mechanism, which is installed on the support rod on the side of the L-shaped plate, is driven by an external drive motor and bends the hardware body during rotation; A guide rail, wherein the guide rail is fixedly mounted on the side of the L-shaped plate, the guide rail is slidably connected to the movable rod in the rotary bending mechanism, and a limit groove provided on the guide rail is slidably connected to a limit block installed in the movable rod to ensure the stability of the movement; An inner side trimming mechanism, wherein the inner side trimming mechanism is connected to a movable rod in the rotary bending mechanism, and the inner side trimming mechanism also moves synchronously with the movable rod when the rotary bending mechanism is deflected; A synchronous fine-tuning mechanism, which is installed at the end of the inner side trimming mechanism and is located outside the hardware body. The synchronous fine-tuning mechanism continuously performs fine-touch on the outer side of the hardware body when rotating with the movable rod. The synchronous fine-tuning mechanism also cooperates with the inner side trimming mechanism to ensure the molding accuracy of the hardware body. The single-sided clamping mechanism includes a rotating shaft 1, a driving gear, an H-shaped plate, a spur gear portion and a toggle frame; The h-shaped plate is slidably installed in the L-shaped plate, and a straight tooth portion is provided on one side of the rotating shaft; The rotating shaft 1 is rotatably mounted in the L-shaped plate, and a driving gear meshing with the spur gear portion is mounted on the rotating shaft 1 in the L-shaped plate; The toggle frame is installed at the end of the rotating shaft 1, and the rotating shaft 1, the driving gear, the spur gear part and the H-shaped plate are driven to move synchronously by rotating the toggle frame; The rotary bending mechanism comprises a movable rod, a fixed block 1, a movable block 1 and a telescopic member; The movable rod is rotatably mounted on the end of the support rod, and a fixing block 1 is fixedly mounted on the inner side of the hardware body on the movable rod; A movable block 1 is also installed on the outside of the hardware body, and a transition arc is provided at the end of one side opposite to the fixed block 1 and the movable block 1; The movable block 1 is driven by a telescopic member installed in the movable rod, and the telescopic member is electrically connected to a controller at the connection point of the L-shaped plate.

2. A forming device for CNC machining of metal hardware according to claim 1, characterized in that: The rotating shaft 1 is provided with a plurality of slots, which are arranged at equal angles. A paddle is also installed on the upper surface of the L-shaped plate, and the free end of the paddle is embedded in the slot to prevent the rotating shaft 1 from rotating.

3. A forming device for CNC machining of metal hardware according to claim 1, characterized in that: The movable end of the H-shaped plate is also bonded with a protective pad, which is made of rubber material.

4. A forming device for CNC machining of metal hardware according to claim 1, characterized in that: The inner side trimming mechanism comprises a folding rod, a through hole, an inserting rod and a second fixing block; The folding rod is slidably mounted on the movable rod, and the folding rod and the movable rod are provided with through holes of the same aperture and are fixed by an external plug rod; The second fixing block is installed on the folding rod, and the second fixing block abuts against the inner side of the hardware body.

5. The forming device for CNC machining of metal hardware according to claim 1, characterized in that: The synchronous fine-tuning mechanism comprises a second movable block, a second rotating shaft, a driven gear, a cam, a movable frame and an elastic support member; The second rotating shaft is rotatably mounted on the end of the folding rod, and a driven gear is arranged at one end of the second rotating shaft, and the driven gear is meshed with the annular gear portion arranged on the inner side of the guide rail; The movable frame is slidably mounted on the folding rod and connected to the elastic support member arranged in the groove on the surface of the folding rod; The side surface of the movable frame abuts against a cam fixedly mounted on the other end of the second rotating shaft, and when the cam rotates, the movable frame is pushed to slide along the folding rod. A movable block 2 is also installed at the end of the movable frame, and the movable block 2 abuts against the outer side of the hardware body.

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