C-shaped clasp forming device with flatness correction function

Abstract

The present application relates to the technical field of C-shaped ring manufacturing, and particularly relates to a C-shaped ring forming device with a planeness correction function. The device comprises a spring forming device, which comprises a steel wire guide device, the steel wire guide device comprising a feeding guide groove and a pair of spiral winding guide gauges, the spiral winding guide gauges being provided with shaping guide grooves, the steel wire material sequentially passing through the feeding guide groove and the pair of shaping guide grooves during feeding, and the shaping guide grooves being used for guiding the steel wire material into a spiral winding shape; a cutter device, which is used for cutting off a C-shaped material from the front part of the spiral winding steel wire material; a material lifting gauge, through which the steel wire material passes after being cut by the cutter device, the material lifting gauge being used for supporting one side of the C-shaped material in the axial direction of the spiral winding steel wire material; and a limiting gauge, through which the steel wire material passes after passing through the material lifting gauge, the limiting gauge abutting against the radial outer side of the C-shaped material. The planeness of the C-shaped ring can be corrected before cutting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of C-shaped ring manufacturing, in particular to a C-shaped ring forming device with a flatness correction function. BACKGROUND

[0002] The C-shaped ring is an axial positioning member that is sleeved on the shaft member. The existing C-shaped ring manufacturing methods mainly include the following two methods.

[0003] One method is to place the cut circular steel wire of equal length in a high-precision mold and bend the steel wire into a C-shaped spring by stamping and bending. This method has high mold cost and low efficiency, and cannot achieve the specified break shape of the customer. Moreover, with the wear of the mold, the product precision will decrease.

[0004] The second method is to wind the steel wire into a spiral shape by continuous bending, and then cut it into a C-shaped spring. This method also cannot obtain the specified break shape of the customer. For details, please refer to the C-shaped spring manufacturing method disclosed in Chinese Patent Application No. 201210144461.7, but as shown in the figure, due to the rise angle of the spiral line, the cut C-shaped spring has poor flatness, and needs to be corrected by subsequent heat setting, resulting in complex process and high manufacturing cost. Figure 1 SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides a C-shaped ring forming device with a flatness correction function, which can correct the flatness of the C-shaped ring before cutting, thereby improving the production efficiency.

[0006] To achieve the above-mentioned purpose, the present application is implemented by the following technical solutions:

[0007] A C-shaped ring forming device with a flatness correction function, comprising: a spring forming device, the spring forming device comprising:

[0008] A steel wire guide device, the steel wire guide device comprising a feeding guide slot and a pair of spiral winding guide rules, the spiral winding guide rules being provided with a shaping guide slot, the steel wire material sequentially passing through the feeding guide slot and the pair of shaping guide slots during feeding, and the shaping guide slot being used to guide the steel wire material into a spiral winding shape;

[0009] A cutter device, the cutter device being used to cut the C-shaped material from the front part of the spiral winding steel wire material;

[0010] Further comprising a flatness correction assembly, the flatness correction assembly being used to guide the front end of the C-shaped material to the position towards the rear end of the C-shaped material and tend to close, the flatness correction assembly comprising:

[0011] ​The top gauge is used to prop up one side of the C-shaped material in the axial direction of the spiral winding of the steel wire material.

[0012] The limiting gauge is used to prop up the other side of the C-shaped material in the radial direction of the steel wire material.

[0013] Further, the C-shaped ring forming device with the flatness correction function comprises a vertically arranged mounting plate, the feeding guide groove, the spiral winding guide gauge, the cutter device, the top gauge and the limiting gauge are circumferentially arranged on the vertical end surface of the mounting plate; the cutting position of the C-shaped material is located at the upper end of the C-shaped material.

[0014] Further, the C-shaped ring forming device with the flatness correction function comprises a top rod and a first mounting base, the first mounting base is mounted on the mounting plate, the top rod is mounted on the first mounting base, the top rod extends axially towards the side surface of the C-shaped material, the front end side of the top rod is provided with a conical contact surface, the conical contact surface contacts the side of the C-shaped material close to the mounting plate; the axial position of the top rod on the first mounting base is adjustable.

[0015] Further, the C-shaped ring forming device with the flatness correction function comprises a limiting rod and a second mounting base, the second mounting base is mounted on the mounting plate, the limiting rod is mounted on the second mounting base, the front end of the limiting rod contacts the outside of the C-shaped material.

[0016] Further, the C-shaped ring forming device with flatness correction function in the application, the second mounting seat comprises a fixing seat and an adjusting seat, the fixing seat is fixed on the mounting plate, the adjusting seat is rotatably installed on the fixing seat, the adjusting seat can be rotatably adjusted on the fixing seat, the position of the front end of the limiting rod changes in the pitch direction of the spiral winding of the steel wire material during the rotation adjustment of the adjusting seat, the limiting rod is installed on the adjusting seat, and the limiting rod can be axially adjusted on the adjusting seat. As a preferred scheme of the application, the height of the front end of the limiting rod is adjusted by rotationally adjusting the adjusting seat and axially adjusting the position of the limiting rod on the adjusting seat, and the adaptability is improved.

[0017] Further, the C-shaped ring forming device with flatness correction function in the application, the second mounting seat comprises a fixing seat and an adjusting seat, the fixing seat is fixed on the mounting plate, the adjusting seat is rotatably installed on the fixing seat, the adjusting seat can be rotatably adjusted on the fixing seat, the position of the front end of the limiting rod changes in the pitch direction of the spiral winding of the steel wire material during the rotation adjustment of the adjusting seat, the limiting rod is installed on the adjusting seat, and the limiting rod can be axially adjusted on the adjusting seat. As a preferred scheme of the application, the height of the front end of the limiting rod is adjusted by rotationally adjusting the adjusting seat and axially adjusting the position of the limiting rod on the adjusting seat, and the adaptability is improved.

[0018] Further, the C-shaped ring forming device with flatness correction function in the application, the second mounting seat comprises a fixing seat and an adjusting seat, the fixing seat is fixed on the mounting plate, the adjusting seat is rotatably installed on the fixing seat, the adjusting seat can be rotatably adjusted on the fixing seat, the position of the front end of the limiting rod changes in the pitch direction of the spiral winding of the steel wire material during the rotation adjustment of the adjusting seat, the limiting rod is installed on the adjusting seat, and the limiting rod can be axially adjusted on the adjusting seat. As a preferred scheme of the application, the height of the front end of the limiting rod is adjusted by rotationally adjusting the adjusting seat and axially adjusting the position of the limiting rod on the adjusting seat, and the adaptability is improved.

[0019] Further, the C-shaped ring forming device with flatness correction function in the application, the second mounting seat comprises a fixing seat and an adjusting seat, the fixing seat is fixed on the mounting plate, the adjusting seat is rotatably installed on the fixing seat, the adjusting seat can be rotatably adjusted on the fixing seat, the position of the front end of the limiting rod changes in the pitch direction of the spiral winding of the steel wire material during the rotation adjustment of the adjusting seat, the limiting rod is installed on the adjusting seat, and the limiting rod can be axially adjusted on the adjusting seat. As a preferred scheme of the application, the height of the front end of the limiting rod is adjusted by rotationally adjusting the adjusting seat and axially adjusting the position of the limiting rod on the adjusting seat, and the adaptability is improved.

[0020] Further, the C-shaped ring forming device with flatness correction function in the application, the pressure plate device further comprises a third mounting seat, the third mounting seat comprises a connecting seat connected to the mounting plate and an adjusting frame arranged on the connecting seat, the adjusting frame is rotatably adjusted on the connecting seat, and a sleeve hole is arranged at one end of the adjusting frame away from the connecting seat, and a guide column is mounted in the sleeve hole and can be axially adjusted in the sleeve hole. As a preferred scheme of the application, a pair of rotatably adjusted connecting rods are formed based on the connecting seat and the adjusting frame of the device, and the guide column and the adjusting frame form a sliding adjustment connection, which is used to adjust the posture and position of the pressure plate to adapt to the C-shaped material.

[0021] The above technical scheme can see that the application has the following beneficial effects:

[0022] The application provides a C-shaped ring forming device with flatness correction function, and the use method is as follows: after the steel wire material passes through the cutting position for the first time, the steel wire material sequentially passes through the material pushing gauge and the limiting gauge, until the steel wire material passing through the cutting position corresponds to the C-shaped material, and the cutting device cuts the C-shaped material. Due to the combined action of the material pushing gauge and the shaping guide groove on one side of the near material pushing gauge, the front end of the C-shaped material is offset to the rear end of the C-shaped material (that is, the cutter position of the cutting device); the limiting gauge is used to correct the shape of the C-shaped material on the opposite side of the material pushing gauge, so that the front end of the C-shaped material is ensured to face the rear end. Therefore, the C-shaped ring forming device with flatness correction function in the application can correct the flatness of the C-shaped ring before cutting, thereby ensuring the quality of the C-shaped ring, improving the production efficiency, and saving the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic view of a C-shaped ring produced by the existing spring machine;

[0024] Figure 2 A plane front view of the C-shaped ring forming device with flatness correction function in the first embodiment of the application;

[0025] Figure 3 A three-dimensional schematic view of the C-shaped ring forming device with flatness correction function in the first embodiment of the application;

[0026] Figure 4 A schematic view of a C-shaped ring produced by the C-shaped ring forming device with flatness correction function in the embodiment of the application;

[0027] Figure 5 A plane front view of the C-shaped ring forming device with flatness correction function in the second embodiment of the application;

[0028] Figure 6 A three-dimensional schematic view of the C-shaped ring forming device with flatness correction function in the second embodiment of the application;

[0029] Figure 7 This is a schematic diagram of the pressure plate device in Embodiment 2 of this application.

[0030] In the picture:

[0031] 1-Mounting plate; 11-Feed guide chute;

[0032] 2-Helical winding guide; 21-Shaping guide groove;

[0033] 31-Punch; 32-Fixed blade;

[0034] 4-Top gauge; 41-Top rod; 411-Conical contact surface; 42-First mounting base; 421-Locking screw; 422-Adjusting screw;

[0035] 5-Limit gauge; 51-Limit rod; 512-Limit groove; 513-Inlet bevel; 52-Second mounting base; 521-Fixed base; 5211-Arc-shaped slide groove; 522-Adjusting base; 5221-Limit sliding rod; 5222-Fasting screw; 5223-Mounting groove;

[0036] 6-C shaped material;

[0037] 7-Pressure plate device; 71-Pressure plate; 711-Pressure plane; 712-Heating plate; 72-Guide post; 721-Limiting protrusion; 73-Compression spring; 74-Third mounting base; 741-Connecting base; 742-Adjusting bracket; 7421-Sleeve hole; Detailed Implementation

[0038] Example 1

[0039] Combination Figures 2 to 4 As shown, this embodiment provides a C-shaped ferrule forming device with flatness correction function, including: a spring forming device, the spring forming device including:

[0040] The wire guiding device includes a feeding guide groove 11 and a pair of spiral winding guides 2. The ends of the spiral winding guides 2 are provided with shaping guide grooves 21. During the feeding process, the wire material passes sequentially through the feeding guide groove 11 and the pair of shaping guide grooves 21. The shaping guide grooves 21 are used to guide the wire material to a position such that... Figure 1 The spiral shape shown;

[0041] A cutting device is used to cut off C-shaped material 6 from the front of the spirally wound steel wire.

[0042] It also includes planar orthopedic components, such as planar orthopedic components. Figure 3 and Figure 4 The planar straightening assembly shown is used to guide the front end of the C-shaped material 6 to a position towards the rear end of the C-shaped material 6 and to tend towards closure.

[0043] The top material gauge 4 is used to prop up one side of the C-shaped material 6 in the axial direction of the spiral winding of the steel wire material, and the steel wire material passes through the cutting device and the top material gauge 4, and the steel wire material is in contact with the top material gauge 4 in the process of passing through the top material gauge 4.

[0044] The limiting gauge 5 is in contact with the outer side of the C-shaped material 6 in the radial direction, and the contact positions of the top material gauge 4 and the limiting gauge 5 with the steel wire material are located on the opposite sides of the C-shaped material 6, respectively.

[0045] Based on the above structure, the use method of the C-shaped ring forming device with the flatness correction function is that the steel wire material passes through the cutting position first, and then passes through the top material gauge 4 and the limiting gauge 5, until the steel wire material passing through the cutting position corresponds to the C-shaped material 6, and the cutting device cuts off the C-shaped material 6. Due to the combined action of the top material gauge 4 and the shaping guide groove 21 on the side close to the top material gauge 4, the front end of the C-shaped material 6 is offset to the rear end of the C-shaped material 6 (i.e. the cutting position of the cutting device). The limiting gauge 5 is used to correct the shape of the C-shaped material 6 on the opposite side of the top material gauge 4, so as to ensure that the front end of the C-shaped material 6 faces the rear end. Therefore, the C-shaped ring forming device with the flatness correction function in the present application can correct the flatness of the C-shaped ring before cutting, which not only ensures the quality of the C-shaped ring, but also improves the production efficiency and saves the manufacturing cost. In the embodiment, the cutting device includes a punch 31 driven linearly by a driving cylinder and a fixed knife 32, and the punch 31 and the fixed knife 32 are located on the outer side and the inner side of the radial direction corresponding to the cutting position of the C-shaped material 6, respectively. The punch 31 moves to the fixed knife 32 to cut off the steel wire material.

[0046] As shown in Figure 2 In the embodiment, the spring forming device includes a vertical mounting plate 1, an inlet guide groove 11, a spiral winding guide gauge 2, a cutting device, a top material gauge 4 and a limiting gauge 5 which are circumferentially arranged on the vertical end surface of the mounting plate 1; and the cutting position of the C-shaped material 6 is located at the upper end of the C-shaped material 6. The cut C-shaped material 6 can drop out of the spring forming device downwardly, so as to be collected.

[0047] In the embodiment, the top gauge 4 comprises a top rod 41 and a first mounting base 42, the first mounting base 42 is mounted on the mounting plate 1, the top rod 41 is mounted on the first mounting base 42, the top rod 41 extends axially towards the side of the C-shaped material 6, the front end of the top rod 41 is provided with a tapered contact surface 411, the tapered contact surface 411 contacts the side of the C-shaped material 6 close to the mounting plate 1, and the axial position of the top rod 41 on the first mounting base 42 is adjustable. When the front end of the steel wire material passes through the tapered contact surface 411, the front end of the steel wire material first contacts the tapered contact surface 411, the tapered contact surface 411 is used to guide the front end of the steel wire material to slide away from the mounting plate 1 side of the top rod 41, so that the C-shaped material 6 is lifted by the tapered contact surface 411, and the tapered contact surface 411 also applies a radial support force to the C-shaped material 6 opposite the limiting gauge 5. Due to the shape of the tapered contact surface 411, adjusting the axial position of the top rod 41 can adjust the height of the C-shaped material 6 being lifted, for adaptive adjustment. Specifically, the first mounting base 42 is provided with a through slot corresponding to the top rod 41, the top rod 41 is slidingly mounted in the through slot, the first mounting base 42 is provided with a locking screw 421, the front end of the locking screw 421 penetrates into the through slot and contacts the side wall of the top rod 41 to lock the top rod 41. Further comprising an adjusting screw 422, the adjusting screw 422 is threadedly connected to the first mounting base 42, the front end of the adjusting screw 422 contacts the axial rear end of the top rod 41, and the adjusting screw 422 is screwed to axially fine adjust the top rod 41.

[0048] As shown in Figure 2 and Figure 3 In the embodiment, the limiting gauge 5 comprises a limiting rod 51 and a second mounting base 52, the second mounting base 52 is mounted on the mounting plate 1, the limiting rod 51 is mounted on the second mounting base 52, and the front end of the limiting rod 51 contacts the outside of the C-shaped material 6. Specifically, the second mounting base 52 is mounted between the pair of spiral winding guide gauges 2.

[0049] Further, as shown in Figure 2 and Figure 3As shown, in the embodiment, the second mounting seat 52 comprises a fixing seat 521 and an adjusting seat 522, the fixing seat 521 is fixed on the mounting plate 1, the adjusting seat 522 is rotatably mounted on the fixing seat 521, the adjusting seat 522 is rotatably adjusted on the fixing seat 521, the position of the front end of the limiting rod 51 changes in the pitch direction of the spiral winding of the steel wire material in the process of the rotation adjustment of the adjusting seat 522, the limiting rod 51 is mounted on the adjusting seat 522, and the limiting rod 51 is axially adjusted on the adjusting seat 522. The height of the front end of the limiting rod 51 is adjusted by rotating and adjusting the adjusting seat 522 and axially adjusting the position of the limiting rod 51 on the adjusting seat 522, so that the adaptability is improved. Specifically, the rotation axis of the adjusting seat 522 is parallel to the vertical plane. An arc-shaped sliding groove 5211 is provided on the fixing seat 521 corresponding to the rotation track of the adjusting seat 522, a limiting sliding rod 5221 is provided on the adjusting seat 522 and passes through the arc-shaped sliding groove 5211, a locking nut is connected to the limiting sliding rod 5221, and the locking nut and the adjusting seat 522 are arranged on the two sides of the arc-shaped sliding groove 5211 respectively, and the locking nut is screwed to the adjusting seat 522 to clamp and fix the fixing seat 521, so as to realize the locking of the position of the adjusting seat 522. The limiting rod 51 is slidingly connected to the adjusting seat 522, the adjusting seat 522 is connected with a fastening screw 5222, and the front end of the fastening screw 5222 tightly abuts against the limiting rod 51 to realize the axial locking of the limiting rod 51.

[0050] In the embodiment, the limiting rod 51 can be circumferentially adjusted on the second mounting seat 52, the front end of the limiting rod 51 is provided with a limiting groove 512, the steel wire material abuts against the limiting groove 512 in the feeding process, and the limiting groove 512 is provided with a lead-in bevel 513 corresponding to the feeding end of the steel wire material.

[0051] The circumferential adjustment of the limiting rod 51 can change the extension direction of the steel wire material passing through the limiting groove 512 in the pitch direction of the spiral winding through the limiting groove 512, and can further correct the C-shaped material 6. The lead-in bevel 513 is used for guiding the front end of the steel wire material into the limiting groove 512. Specifically, the adjusting seat 522 is provided with a cylindrical mounting groove 5223, the limiting rod 51 is provided with a mounting section corresponding to the mounting groove 5223, the mounting section is arranged in the mounting groove 5223, the front end of the fastening screw 5222 penetrates into the mounting groove 5223 and abuts against the side wall of the mounting section to realize the circumferential and axial locking of the limiting rod 51,

[0052] Embodiment 2

[0053] On the basis of embodiment 1 in combination with Figure 5 and Figure 7As shown, in the embodiment, the planar correction assembly further comprises a pressure disc device 7, which comprises a pressure disc 71 and a guide column 72. The pressure disc 71 is slidingly sleeved on the guide column 72, and the extension direction of the guide column 72 is adapted to the thickness direction of the C-shaped material 6. The pressure disc 71 is provided with a pressing plane 711 corresponding to the C-shaped material 6. An end of the pressure disc 71 away from the pressing plane 711 is in abutment with a compression spring 73, so that the pressing plane 711 is elastically abutted on the side of the C-shaped material 6 away from the mounting plate 1. The pressure disc 71 is provided with a relief portion corresponding to the position of the cutting device and the limit gauge 5. The pressure disc 71 and the guide column 72 are provided with a circumferential positioning structure. The pressure disc device 7 is provided to elastically abut the C-shaped material 6 on the side away from the mounting plate 1, so as to further calibrate the planeness of the C-shaped material 6. When the C-shaped material 6 is cut off, the distance between the pressure disc 71 and the ejector rod 41 is less than the diameter of the steel wire material. In an embodiment, the guide column 72 is provided with a limiting protrusion 721 at the front end. The limiting protrusion 721 is used to prevent the pressure disc 71 from moving too much to the side of the mounting plate 1. Of course, the pressure disc 71 can also abut the ejector rod 41 to achieve limiting. The front end of the steel wire material continues to feed and lifts the pressure disc 71. Therefore, due to the action of the compression spring 73, the pressure disc 71 is elastically attached to the C-shaped material 6. The circumferential positioning structure is used to ensure that the pressure disc 71 does not rotate around the guide column 72 during sliding. Specifically, the circumferential positioning structure comprises a positioning nail mounted on the side wall of the guide column 72, and an axially extending sliding groove on the pressure disc 71 matched with the positioning nail.

[0054] In combination Figure 7 As shown, in the embodiment, the pressure disc 71 is provided with a heating plate 712, and the pressing plane 711 is arranged on the heating plate 712. The C-shaped material 6 is heated by the heating plate 712, which is helpful for the shaping of the C-shaped material 6. In the embodiment, the heating plate 712 is annular as a whole, and is connected to the end face of the pressure disc 71 by screws.

[0055] In combination Figure 6 And Figure 7As shown, in the embodiment, the pressing plate device 7 further comprises a third mounting base 74, which comprises a connecting base 741 connected to the mounting plate 1 and an adjusting frame 742 arranged on the connecting base 741, the adjusting frame 742 being rotatably adjusted on the connecting base 741, and the adjusting frame 742 being provided with a sleeve hole 7421 at an end away from the connecting base 741, and the guide column 72 being mounted in the sleeve hole 7421 and axially slidably adjusted in the sleeve hole 7421. Based on the above, the connecting base 741 and the adjusting frame 742 form a pair of rotatably adjusted connecting rods, and the specific rotatable adjusting structure can be referred to the structure between the fixing base 521 and the adjusting base 522, and the guide column 72 and the adjusting frame 742 form a slidingly adjusted connection, which is used to adjust the posture and position of the pressing plate 71 to adapt to the C-shaped material 6. The specific slidingly adjusted structure is consistent with the slidingly adjusted structure between the limiting rod 51 and the adjusting base 522, and will not be described herein. In the embodiment, the circumferential degree of freedom of the guide column 72 is locked, and the implementation manner can be that a prismatic guide column and a sleeve hole matched with the cross section of the guide column are adopted. In the embodiment, the guide column 72 is in a whole cylindrical shape, and the connecting position of the guide column 72 and the sleeve hole 7421 is provided with an axially extending flat groove, and a screw for axially locking the guide column is abutted on the flat groove surface, and the guide column 72 can be axially moved by slightly loosening the screw, and in the process of moving the guide column 72, the guide column 72 cannot be circumferentially rotated.

[0056] In other embodiments, a rotatably adjusted connecting rod can be further arranged between the connecting base 741 and the adjusting frame 742 and rotatably connected with the connecting base 741 and the adjusting frame 742, and a pair of rotation axes are perpendicular to each other to improve the adjustable degrees of freedom of the position and posture of the pressing plate 71.

[0057] The technical principles of the present application are described above in combination with specific embodiments, and the descriptions are only for explaining the principles of the present application, and cannot be explained as limitations on the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. A C-shaped collar forming device having a flatness correction function, comprising: The spring forming device comprises: A steel wire guide device, which comprises a feeding guide slot (11) and a pair of spiral winding guide gauges (2) provided with shaping guide slots (21), and the steel wire material passes through the feeding guide slot (11) and the pair of shaping guide slots (21) in sequence during feeding, and the shaping guide slots (21) are used for guiding the steel wire material to spiral winding; A cutter device, which is used for cutting a C-shaped material (6) at the front of the spiral winding steel wire material; The spring forming device further comprises a plane correction assembly, which is used for guiding the front end of the C-shaped material (6) to the cutting position of the rear end of the C-shaped material (6) and tends to be closed, and the plane correction assembly comprises: A material lifting gauge (4), through which the steel wire material passes after being cut by the cutter device, and the steel wire material is in contact with the material lifting gauge (4) during the process of passing through the material lifting gauge (4), and the material lifting gauge (4) is used for supporting one side of the C-shaped material (6) in the axial direction of the spiral winding of the steel wire material; A limiting gauge (5), through which the steel wire material passes after passing through the material lifting gauge (4), and the limiting gauge (5) is in contact with the radial outer side of the C-shaped material (6), and the contact positions of the material lifting gauge (4) and the limiting gauge (5) with the steel wire material are located on the opposite sides of the C-shaped material (6), respectively.

2. The C-shaped collar forming device with flatness correction function according to claim 1, characterized in that: The spring forming device comprises a vertically arranged mounting plate (1), and the feeding guide slot (11), the spiral winding guide gauges (2), the cutter device, the material lifting gauge (4) and the limiting gauge (5) are circumferentially arranged on the vertical end surface of the mounting plate (1); The cutting position of the C-shaped material (6) is located at the upper end of the C-shaped material (6).

3. The C-shaped collar forming device with flatness correction function according to claim 2, characterized in that: The material lifting gauge (4) comprises a lifting rod (41) and a first mounting seat (42), the first mounting seat (42) is mounted on the mounting plate (1), the lifting rod (41) is mounted on the first mounting seat (42), the lifting rod (41) extends axially towards the side surface of the C-shaped material (6), the front end side of the lifting rod (41) is provided with a conical contact surface (411) in contact with the side of the C-shaped material (6) close to the mounting plate (1), and the axial position of the lifting rod (41) on the first mounting seat (42) is adjustable.

4. The C-shaped collar forming device with flatness correction function according to claim 2, characterized in that: The limiting gauge (5) comprises a limiting rod (51) and a second mounting seat (52), the second mounting seat (52) is mounted on the mounting plate (1), and the limiting rod (51) is mounted on the second mounting seat (52), and the front end of the limiting rod (51) is in contact with the outer side of the C-shaped material (6).

5. The C-shaped collar forming device with flatness correction function according to claim 4, characterized in that: The second mounting seat (52) comprises a fixed seat (521) and an adjusting seat (522), the fixed seat (521) is fixed on the mounting plate (1), the adjusting seat (522) is rotationally mounted on the fixed seat (521), the adjusting seat (522) is rotationally adjusted and moved on the fixed seat (521), the front end position of the limiting rod (51) changes in the pitch direction of the spiral winding of the steel wire material during the rotationally adjusting process of the adjusting seat (522), the limiting rod (51) is mounted on the adjusting seat (522), and the limiting rod (51) is axially adjusted and moved on the adjusting seat (522).

6. The C-shaped collar forming device with flatness correction function according to claim 5, characterized in that: The limiting rod (51) can be adjusted in circumferential rotation on the second mounting base (52), the limiting rod (51) is provided with a limiting groove (512) at the front end, the steel wire material is abutted in the limiting groove (512) during feeding, and the limiting groove (512) is provided with a guide bevel (513) corresponding to the feeding end of the steel wire material.

7. The C-shaped collar forming device with flatness correction function according to claim 2, characterized in that: The planar correction assembly further comprises a pressure disc device (7), the pressure disc device (7) comprises a pressure disc (71) and a guide column (72), the pressure disc (71) is slidingly sleeved on the guide column (72), the extension direction of the guide column (72) is adapted to the thickness direction of the C-shaped material (6), the pressure disc (71) is provided with a pressure flat surface (711) corresponding to the C-shaped material (6), one end of the pressure disc (71) away from the pressure flat surface (711) is abutted by a compression spring (73) to elastically abut the C-shaped material (6) away from one side of the mounting plate (1) on the pressure flat surface (711), the pressure disc (71) is provided with an avoiding defect corresponding to the positions of the cutter device and the limiting gauge (5), and circumferential positioning structures are arranged between the pressure disc (71) and the guide column (72).

8. The C-shaped collar forming device with flatness correction function according to claim 7, characterized in that: The pressure disc (71) is provided with a heating plate (712), and the pressure flat surface (711) is arranged on the heating plate (712).

9. The C-shaped collar forming device with flatness correction function according to claim 7, characterized in that: The pressure disc device (7) further comprises a third mounting base (74), the third mounting base (74) comprises a connecting base (741) connected to the mounting plate (1) and an adjusting frame (742) arranged on the connecting base (741), the adjusting frame (742) can be adjusted in rotation on the connecting base (741), one end of the adjusting frame (742) away from the connecting base (741) is provided with a sleeve hole (7421), the guide column (72) is mounted in the sleeve hole (7421), and the guide column (72) can be axially adjusted in the sleeve hole (7421).

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