Spring machining equipment and operation method

Abstract

The invention relates to the technical field of spring machining, in particular to spring machining equipment and an operation method.The end of a connecting rod is provided with a double-head conical rod, the double-head conical rod is internally provided with a pair of insertion plates arranged in a radial telescopic mode, and the insertion plates can extend to the outer side of an inner cavity of the double-head conical rod in a telescopic mode; the spring forming device has the beneficial effects that positioning of the circle center of the limiting piece is achieved by arranging the positioning column, the limiting piece is matched with the forming assembly, the size adjusting convenience of the spring is improved, meanwhile, the inserting plates driven in the radial direction in a telescopic mode are arranged, inserting connection of the formed spring is achieved, and the spring forming efficiency is improved. The purpose of pulling the spring to extend is achieved through longitudinal stretching and retracting of the inserting plate, in this way, the gap between the first spring coil and the second spring coil can be enlarged, notches are avoided, meanwhile, by matching with inclination of the connecting rod and the double-end conical rod, the cut reset spring slides down directionally, accurate limiting blanking is achieved, and the influence on a forming assembly during blanking is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of spring processing, and in particular to a spring processing device and an operating method. Background Art

[0002] Springs are common elastic parts, which are mostly formed by spiral winding of forming equipment. The spring forming technology and equipment in the prior art can form springs of various shapes.

[0003] The existing patent CN114589276A discloses a spring processing method and a spring processing device, which includes the following steps: forming the spring on a spring coiling machine; applying two opposite and overlapping pressing forces at the connection between the steel wire and the spring to position the steel wire, and separating the application position of the pressing force from the spring; applying a torsional force toward the connection at the first spring coil connected to the steel wire, and the application position is away from the connection between the first spring coil and the steel wire, so that the spring is turned along the axis of the connection toward the application direction of the torsional force and the connection between the steel wire and the spring is twisted off; surface treatment is performed on the twisted part of the spring after separation from the steel wire. By twisting the spring relative to the steel wire, the steel wire and the spring are separated from each other by utilizing the fatigue characteristics of the metal, and it is no longer necessary to use a cutter for processing during the separation of the two. At this time, it is not easy to produce a notch left by the cutter on the surface of the spring, so that the spring is not easy to produce stress concentration during subsequent use, and the spring is not easy to break.

[0004] The above technical solution discloses the problem that the gap between the first spring coil and the second spring coil is small and a gap is easily generated. The problem is that a gap is easily generated by using a torsion force instead of a cutting force for cutting, thereby avoiding the generation of a cutting gap. Although such a torsion force avoids the generation of a gap, it is easy to cause deformation of the end of the spring. In order to achieve the limit of various shapes of the spring, a circumferentially distributed wire gauge is set in the existing forming equipment. The extension direction of the steel wire is limited by telescopic drive, and then bent into different shapes. This makes it easy for the spring to be cut and dropped to hang on the wire gauge, affecting subsequent processing. Summary of the invention

[0005] The object of the present invention is to provide a spring processing device and an operating method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A spring processing device comprises a forming frame and a raw material frame, wherein the raw material frame is provided with a raw material roller for mounting a raw material coil and a driving assembly for guiding the raw material wire to the forming frame, and the forming frame is provided with a cutting assembly for cutting the raw material wire and a forming assembly for making the raw material wire spiral into a spring.

[0008] The forming frame is provided with an inner lining tube, which is located at the center of the forming assembly. A telescopically driven positioning column is provided on one side of the inner lining tube. One end of the positioning column is located in the inner lining tube and is rotatably connected to a small cone rod. The other end of the small cone rod is connected to a connecting rod. The connecting rod is provided with a limit piece that cooperates with the forming assembly. A double-headed cone rod is provided at the end of the connecting rod. A pair of radially telescopic plug plates are provided in the double-headed cone rod. The plug plates can be telescopically extended to the outside of the inner cavity of the double-headed cone rod. The pair of plug plates are telescopically driven along the extension direction of the connecting rod by a second telescopic rod.

[0009] Preferably, the driving assembly includes a wiping frame, a correction device and a wire wheel, the wiping frame is provided with a felt cloth for wiping the raw material line, the correction device is composed of a plurality of groups of rollers spaced apart in front and back, and a pair of the wire wheels are symmetrically distributed up and down.

[0010] Preferably, the forming assembly includes a first limit rod and a second limit rod, the first limit rod and the second limit rod are distributed symmetrically with the center, the second limit rod is close to one side of the raw material rack, a guide plate is provided at the end of the second limit rod, and a forming positioning plate is provided at the end of the first limit rod, the end faces of the guide plate and the forming positioning plate are both arc-shaped surfaces, and the ends of the arc surfaces of the guide plates are rounded.

[0011] Preferably, a fixing block is provided on the connecting rod, and a pair of adjusting rods extending toward the guide plate and the forming positioning plate respectively are provided on the fixing block. A limiting member is installed at the end of the adjusting rod, and a wire groove for accommodating the arc bending of the raw material wire is left between the limiting member and the guide plate and the forming positioning plate. The limiting member is at least one group of an arc plate, a roller or a rotating wheel.

[0012] Preferably, a mounting groove is provided on the forming frame, the liner tube is fixed in the mounting groove, the inner cavity of the liner tube is set as a positioning socket, the outer diameter of the positioning column and the large diameter of the small cone rod are equal to the inner diameter of the positioning socket, and a rotating seat is provided at the end of the positioning column, the small diameter end of the small cone rod is rotatably mounted on the rotating seat, and the positioning column is driven by a first telescopic rod fixed to the forming frame.

[0013] Preferably, a telescopic inner cavity is provided in the double-headed conical rod, a pair of symmetrically distributed open grooves extending to the arc outer wall of the double-headed conical rod is provided in the telescopic inner cavity, a two-way telescopic rod is provided in the telescopic inner cavity, a pair of the plug plates are respectively connected to the two ends of the two-way telescopic rod, the middle section of the two-way telescopic rod is connected to the second telescopic rod, the second telescopic rod is fixed in the telescopic inner cavity, and a first spring is sleeved on the second telescopic rod, one end of the first spring is against the inner wall of the telescopic inner cavity, and the other end of the first spring is against the side wall of the middle section of the two-way telescopic rod.

[0014] Preferably, the cutting assembly includes a rack, a driving gear, a cutting knife and a fixed frame. The rack is slidably attached to the forming frame and passes through the fixed frame. A driving gear driven by a motor is provided on the fixed frame. The driving gear is meshed with the rack. The cutting knife is fixed to the end of the rack close to one end of the liner pipe, and the fixed frame is fixedly installed on the forming frame.

[0015] Preferably, the first limiting rod and the second limiting rod both include a sleeve column, a stud column and a limiting column. A fixing plate is provided on the forming frame. One end of the sleeve column is fixed on the fixing plate. The sleeve column extends toward the center of the inner liner pipe. The other end of the sleeve column is fixedly connected to the stud column. The other end of the stud column is fixedly connected to the limiting column. The guide plate and the forming positioning plate are slidably sleeved on the limiting column.

[0016] Preferably, an ear plate is provided at one end of the sleeve close to the stud, and a plurality of through holes distributed in a circumferential array are provided on the ear plate, a fastening groove is provided on the arc outer wall of the sleeve, an outer double ring is fixedly installed on the guide plate and the forming positioning plate, an inner double ring is sleeved on the stud, the outer double ring includes a first ring sleeved on the sleeve and a second ring fixed on the guide plate and the forming positioning plate, a fastening bolt pressed on the fastening groove is provided on the first ring, a second spring is pressed between the first ring and the ear plate, the first ring and the second ring are connected by a connecting rod sliding through the through hole, and the inner double ring includes a screw ring threadedly installed on the stud and a pressure ring resting on the end surface of the guide plate and the forming positioning plate.

[0017] An operating method implemented according to the spring processing equipment, the operating method comprises the following steps:

[0018] Step 1: According to the size requirements of the spring to be produced, adjust the positions of the first limit rod and the second limit rod, and adjust the positions of the guide plate and the forming positioning plate by rotating the thread of the screw ring on the inner double ring on the stud to limit the outer diameter of the spring;

[0019] Step 2: According to the size of the spring and the outer diameter of the raw material wire, adjust the position of the limiter so that the width of the arc groove formed between the limiter and the guide plate and the forming positioning plate is equal to the outer diameter of the raw material wire;

[0020] Step 3: Guide the raw wire onto the guide plate and wind it around the arc-shaped wire groove. Use the cutting assembly to cut off the initial winding circle, and then control the radial direction of the raw wire to form a spring that extends spirally along the wire groove.

[0021] Step 4: After forming, the plug plate is used to be telescopically inserted into the gap of the spring and longitudinally pulled to stretch the spring. At this time, the gap between the first and second circles at the end of the spring increases, and the cutting assembly is used to cut the spring end. The cut spring end becomes a free end and moves toward one end of the double-headed cone rod under the traction of the plug plate. At this time, the plug rod is reset, and the first telescopic rod drives the double-headed cone rod to move outward, so that the end of the small cone rod extends to the outside of the inner liner tube. At this time, the double-headed cone rod rotates and tilts downward, so that the cut spring falls downward along the double-headed cone rod.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention realizes the center positioning of the limit piece by arranging a positioning column, so that the limit piece cooperates with the forming component, and the convenience of adjusting the size of the spring is improved. At the same time, a radially telescopically driven plug plate is arranged to realize the plugging of the formed spring, and the longitudinal telescopic movement of the plug plate is utilized to achieve the purpose of extending the traction spring, so that the gap between the first spring coil and the second spring coil can be increased to avoid the formation of a gap. At the same time, the inclination of the connecting rod and the double-headed cone rod is coordinated to make the spring reset after cutting slide in a directional manner, so as to realize accurate limited blanking and avoid the influence on the forming component during blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the plugboard installation structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the telescopic adjustment structure of the first limiting rod and the second limiting rod of the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the double-headed cone rod installation of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the forming positioning plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the first limiting rod three-dimensional structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the plug board installation of the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the connection between the connecting rod and the positioning column of the present invention.

[0032] In the figure: 1, forming frame; 2, raw material frame; 3, raw material roller; 4, raw material coil; 5, wiping frame; 6, correction device; 7, wire wheel; 8, cutting assembly; 9, first limit rod; 10, second limit rod; 11, cutting knife; 12, forming positioning plate; 13, guide plate; 14, fixing frame; 15, rack; 16, driving gear; 17, lining tube; 18, limiter; 19, connecting rod; 20, positioning socket; 21, mounting slot; 22, first telescopic rod; 23, positioning Column; 24, small cone rod; 25, double-headed cone rod; 26, adjusting rod; 27, telescopic inner cavity; 28, opening groove; 29, two-way telescopic rod; 30, plug plate; 31, first spring; 32, second telescopic rod; 33, fixed block; 34, fixed plate; 35, second spring; 36, rotating seat; 37, fastening bolt; 38, fastening groove; 91, sleeve column; 92, stud; 93, limit column; 94, ear plate; 95, through hole; 96, inner double ring; 97, outer double ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 8 , the present invention provides a technical solution:

[0035] Embodiment 1: A spring processing equipment comprises a forming frame 1 and a raw material frame 2, the raw material frame 2 is provided with a raw material roller 3 for mounting a raw material coil 4 and a driving assembly for guiding the raw material wire to the forming frame 1, the forming frame 1 is provided with a cutting assembly 8 for cutting the raw material wire and a forming assembly for making the raw material wire spiral into a spring, the driving assembly comprises a wiping frame 5, a correction device 6 and a wire wheel 7, the wiping frame 5 is provided with a felt cloth for wiping the raw material wire, the correction device 6 is composed of a plurality of groups of rollers spaced apart from each other, and a pair of wire wheels 7 are symmetrically distributed up and down.

[0036] The wound and bent raw material wire is straightened by the correction device 6 , and is continuously fed to the forming frame 1 under the drive of the wire wheel 7 .

[0037] An inner liner tube 17 is provided on the forming frame 1, and the inner liner tube 17 is located at the center of the forming assembly. A telescopically driven positioning column 23 is provided on one side of the inner liner tube 17. One end of the positioning column 23 is located in the inner liner tube 17 and is rotatably connected to a small cone rod 24. The other end of the small cone rod 24 is connected to a connecting rod 19. The connecting rod 19 is provided with a limit piece 18 that cooperates with the forming assembly. A double-headed cone rod 25 is provided at the end of the connecting rod 19. A pair of radially telescopic plug plates 30 are provided in the double-headed cone rod 25. The plug plates 30 can be telescopically extended to the outside of the inner cavity of the double-headed cone rod 25. The pair of plug plates 30 are telescopically driven along the extension direction of the connecting rod 19 by a second telescopic rod 32.

[0038] By plugging the positioning column 23 and the small tapered rod 24, the connecting rod 19 is positioned, thereby limiting the position of the limiter 18 and ensuring the adaptation and adjustment of the limiter 18 and the forming assembly. The radial expansion and contraction of the plug plate 30 is used to insert it in the spiral gap of the formed spring. The movement of the plug plate 30 is pulled by the second telescopic rod 32 to achieve the purpose of stretching the formed spring, thereby increasing the spring coil gap of the spring, and cooperating with the rotation and tilting of the small tapered rod 24 to achieve the inclined blanking of the spring.

[0039] Working principle: First, the limiter 18 and the forming assembly are used to guide the raw material wire to the forming frame 1 and limit the inner diameter and outer diameter of its spiral. With the drive of the wire wheel 7, the raw material wire is continuously fed and spiraled into a formed spring. At this time, the spring is close to the end of the forming frame 1, and the gap between adjacent spring coils is small.

[0040] At this time, the driving plug plate 30 is extended to the outside of the double-headed cone rod 25 and inserted between adjacent spring coils of the formed spring. The second telescopic rod 32 is used to pull the plug plate 30 to slide, thereby stretching the spring and increasing the gap between the spring coils. The cutting assembly 8 is then used to radially cut the end of the spring. After cutting, the end forms a free end. Due to the elastic force, the end will move to the side of the plug plate 30. At this time, the driving positioning column 23 is telescopically driven to extend the small cone rod 24 to extend to the outside of the inner liner tube 17, thereby rotating and tilting downward, and synchronously driving the double-headed cone rod 25 to tilt. At this time, the plug plate 30 is reset and contracted and detached from the spring. The spring tilts and falls under the action of gravity, thereby achieving the purpose of automatic limit blanking.

[0041] Example 2: On the basis of Example 1, in order to adapt to springs of different sizes, the forming assembly includes a first limit rod 9 and a second limit rod 10, the first limit rod 9 and the second limit rod 10 are distributed symmetrically with the center, the second limit rod 10 is close to the side of the raw material rack 2, and a guide plate 13 is provided at the end of the second limit rod 10, and a forming positioning plate 12 is provided at the end of the first limit rod 9. The end faces of the guide plate 13 and the forming positioning plate 12 are both arc-shaped surfaces, and the ends of the arc surface of the guide plate 13 are rounded.

[0042] The rounded corners of the guide plate 13 are used to smoothly guide the raw material line. The limiting member 18, the guide plate 13 and the forming positioning plate 12 form a circular wire groove to limit the feeding trajectory of the raw material line.

[0043] A fixing block 33 is provided on the connecting rod 19, and a pair of adjusting rods 26 extending toward the guide plate 13 and the forming positioning plate 12 are provided on the fixing block 33. The limiting member 18 is installed at the end of the adjusting rod 26, and a wire groove for accommodating the arc bending of the raw material wire is reserved between the limiting member 18 and the guide plate 13 and the forming positioning plate 12. The limiting member 18 is at least one group of arc plates, rollers or wheels.

[0044] The adjustment rod 26 is provided to adjust the outer diameter of the limit spring 18 to adapt to the inner diameters of springs of different sizes.

[0045] The first limiting rod 9 and the second limiting rod 10 both include a sleeve column 91, a stud 92 and a limiting column 93. A fixing plate 34 is provided on the forming frame 1. One end of the sleeve column 91 is fixed on the fixing plate 34. The sleeve column 91 extends toward the center of the inner liner tube 17. The other end of the sleeve column 91 is fixedly connected to the stud 92. The other end of the stud 92 is fixedly connected to the limiting column 93. The guide plate 13 and the forming positioning plate 12 are slidably sleeved on the limiting column 93. An ear plate 94 is provided at one end of the sleeve column 91 close to the stud 92. A plurality of groups of through holes 95 distributed in a circumferential array are provided on the ear plate 94. A fastening pressing groove 38 is provided on the arc outer wall of the sleeve column 91. An outer double ring 97 is fixedly installed on the guide plate 13 and the forming positioning plate 12, and an inner double ring 96 is sleeved on the stud 92. The outer double ring 97 includes a first ring sleeved on the sleeve 91 and a second ring fixed on the guide plate 13 and the forming positioning plate 12. The first ring is provided with a fastening bolt 37 pressed on the fastening groove 38. A second spring 35 is pressed between the first ring and the ear plate 94. The first ring and the second ring are connected by a connecting rod that slides through the through hole 95. The inner double ring 96 includes a screw ring threadedly installed on the stud 92 and a pressure ring against the end surface of the guide plate 13 and the forming positioning plate 12.

[0046] The outer double ring 97 is used to limit the position of the guide plate 13 and the forming positioning plate 12, and the second spring 35 is used to realize their elastic installation. The threaded rotation of the screw ring on the stud 92 makes the pressure ring elastically squeeze the guide plate 13 and the forming positioning plate 12 to achieve position adjustment. At this time, the guide plate 13 and the forming positioning plate 12 slide on the limiting column 93 to achieve the purpose of adapting to different spring outer diameters. After the adjustment is completed, the cooperation of the through hole and the connecting rod is used to prevent the rotation of the pressure ring and the screw ring from driving the synchronous rotation of the guide plate 13 and the forming positioning plate 12, thereby ensuring the stability of the adjustment.

[0047] Embodiment 3: On the basis of Embodiment 2, a mounting groove 21 is provided on the forming frame 1, and the lining tube 17 is fixed in the mounting groove 21. The inner cavity of the lining tube 17 is set as a positioning socket 20. The outer diameter of the positioning column 23 and the large diameter of the small cone rod 24 are equal to the inner diameter of the positioning socket 20. A rotating seat 36 is provided at the end of the positioning column 23. The small diameter end of the small cone rod 24 is rotatably installed on the rotating seat 36. The positioning column 23 is driven by the first telescopic rod 22 fixed on the forming frame 1.

[0048] The telescopic drive of the positioning column 23 is realized by the first telescopic rod 22, and the rotational connection between the positioning column 23 and the small tapered rod 24 is realized by the rotating seat 36. By setting a tapered end of the small tapered rod 24, it is realized that under the resetting traction of the first telescopic rod 22, an inclined and smooth contact with the port of the positioning socket 20 is formed, which facilitates its resetting and plugging.

[0049] A telescopic inner cavity 27 is provided in the double-headed cone rod 25, and a pair of symmetrically distributed open grooves 28 extending to the arc outer wall of the double-headed cone rod 25 are provided in the telescopic inner cavity 27. A two-way telescopic rod 29 is provided in the telescopic inner cavity 27. A pair of plug plates 30 are respectively connected to the two ends of the two-way telescopic rod 29. The middle section of the two-way telescopic rod 29 is connected to the second telescopic rod 32. The second telescopic rod 32 is fixed in the telescopic inner cavity 27, and a first spring 31 is sleeved on the second telescopic rod 32. One end of the first spring 31 abuts against the inner wall of the telescopic inner cavity 27, and the other end of the first spring 31 abuts against the side wall of the middle section of the two-way telescopic rod 29.

[0050] The bidirectional telescopic rod 29 is provided to realize the plugging drive of the plug board 30 to the formed spring, and the second telescopic rod 32 is used to realize the pulling and extending drive of the formed spring by the plug board 30.

[0051] The cutting assembly 8 includes a rack 15, a driving gear 16, a cutting knife 11 and a fixed frame 14. The rack 15 is slidably attached to the forming frame 1 and passes through the fixed frame 14. The fixed frame 14 is provided with a driving gear 16 driven by a motor. The driving gear 16 is meshed with the rack 15. The cutting knife 11 is fixed to the end of the rack 15 close to one end of the liner tube 17. The fixed frame 14 is fixedly installed on the forming frame 1.

[0052] By arranging the cooperation between the driving gear 16 and the rack 15 in the cutting assembly 8, the cutting knife 11 is telescopically driven, thereby driving the cutting knife 11 to descend to achieve the purpose of cutting the raw material line.

[0053] An operating method implemented according to a spring processing device, the operating method comprising the following steps:

[0054] Step 1: According to the size requirements of the spring to be produced, adjust the positions of the first limiting rod 9 and the second limiting rod 10, and adjust the positions of the guide plate 13 and the forming positioning plate 12 by rotating the screw ring on the inner double ring 96 on the stud 92 to limit the outer diameter of the spring;

[0055] Step 2: According to the size of the spring and the outer diameter of the raw material wire, adjust the position of the limiter 18 so that the width of the arc groove formed between the limiter 18 and the guide plate 13 and the forming positioning plate 12 is equal to the outer diameter of the raw material wire;

[0056] Step 3: Guide the raw wire onto the guide plate 13, and wind it around the arc-shaped wire groove for one circle, cut off the initial circle of winding by using the cutting assembly 8, and then control the radial direction of the raw wire to form a spring extending along the wire groove spirally;

[0057] Step 4: After forming, the plug plate 30 is telescopically inserted into the gap of the spring and pulled longitudinally to stretch the spring. At this time, the gap between the first and second circles at the end of the spring increases, and the cutting component 8 is used for cutting. The cut spring end becomes a free end and moves toward one end of the double-headed cone rod 25 under the traction of the plug plate 30. At this time, the plug rod 30 is reset, and the first telescopic rod 22 drives the double-headed cone rod 25 to move outward, so that the end of the small cone rod 24 extends to the outside of the inner liner tube 17. At this time, the double-headed cone rod 25 rotates and tilts downward, so that the cut spring falls downward along the double-headed cone rod 25.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring processing device, comprising a forming frame (1) and a raw material frame (2), wherein the raw material frame (2) is provided with a raw material roller (3) for mounting a raw material coil (4) and a driving assembly for guiding the raw material wire to the forming frame (1), and the forming frame (1) is provided with a cutting assembly (8) for cutting the raw material wire and a forming assembly for making the raw material wire spiral into a spring, characterized in that: The forming frame (1) is provided with an inner lining tube (17), the inner lining tube (17) is located at the center of the forming assembly, a telescopically driven positioning column (23) is provided on one side of the inner lining tube (17), one end of the positioning column (23) is located in the inner lining tube (17) and is rotatably connected to a small cone rod (24), the other end of the small cone rod (24) is connected to a connecting rod (19), the connecting rod (19) is provided with a limiter (18) that cooperates with the forming assembly, a double-headed cone rod (25) is provided at the end of the connecting rod (19), a pair of radially telescopically arranged plug plates (30) are provided in the double-headed cone rod (25), the plug plates (30) can be telescopically extended to the outside of the inner cavity of the double-headed cone rod (25), and the pair of the plug plates (30) are telescopically driven along the extension direction of the connecting rod (19) through a second telescopic rod (32).

2. A spring processing device according to claim 1, characterized in that: The driving assembly comprises a wiping frame (5), a correction device (6) and a wire wheel (7); the wiping frame (5) is provided with a felt cloth for wiping the raw material wire; the correction device (6) is composed of a plurality of groups of rollers spaced apart in front and back; a pair of wire wheels (7) are symmetrically distributed in the upper and lower parts.

3. A spring processing device according to claim 2, characterized in that: The forming assembly comprises a first limiting rod (9) and a second limiting rod (10), the first limiting rod (9) and the second limiting rod (10) are centrally symmetrically distributed, the second limiting rod (10) is close to one side of the raw material rack (2), a guide plate (13) is arranged at the end of the second limiting rod (10), and a forming positioning plate (12) is arranged at the end of the first limiting rod (9), the end faces of the guide plate (13) and the forming positioning plate (12) are both arc-shaped faces, and the ends of the arc surface of the guide plate (13) are rounded.

4. A spring processing device according to claim 3, characterized in that: The connecting rod (19) is provided with a fixing block (33), and the fixing block (33) is provided with a pair of adjusting rods (26) extending toward the guide plate (13) and the forming positioning plate (12) respectively. The limiting member (18) is installed at the end of the adjusting rod (26), and a wire groove for accommodating the arc bending of the raw material wire is reserved between the limiting member (18) and the guide plate (13) and the forming positioning plate (12). The limiting member (18) is at least one group of an arc plate, a roller or a rotating wheel.

5. A spring processing device according to claim 4, characterized in that: The forming frame (1) is provided with a mounting groove (21), the inner lining tube (17) is fixed in the mounting groove (21), the inner cavity of the inner lining tube (17) is provided as a positioning socket (20), the outer diameter of the positioning column (23) and the major diameter of the small cone rod (24) are equal to the inner diameter of the positioning socket (20), a rotating seat (36) is provided at the end of the positioning column (23), the minor diameter end of the small cone rod (24) is rotatably mounted on the rotating seat (36), and the positioning column (23) is driven by a first telescopic rod (22) fixed on the forming frame (1).

6. A spring processing device according to claim 5, characterized in that: The double-headed cone rod (25) is provided with a telescopic inner cavity (27), and a pair of symmetrically distributed open grooves (28) extending to the arc outer wall of the double-headed cone rod (25) are provided in the telescopic inner cavity (27). A bidirectional telescopic rod (29) is provided in the telescopic inner cavity (27), and a pair of plug plates (30) are respectively connected to the two ends of the bidirectional telescopic rod (29). The middle section of the bidirectional telescopic rod (29) is connected to a second telescopic rod (32), and the second telescopic rod (32) is fixed in the telescopic inner cavity (27). A first spring (31) is sleeved on the second telescopic rod (32), and one end of the first spring (31) is against the inner wall of the telescopic inner cavity (27), and the other end of the first spring (31) is against the side wall of the middle section of the bidirectional telescopic rod (29).

7. A spring processing device according to claim 1, characterized in that: The cutting assembly (8) comprises a rack (15), a driving gear (16), a cutting knife (11) and a fixed frame (14); the rack (15) is slidably attached to the forming frame (1) and penetrates the fixed frame (14); a driving gear (16) driven by a motor is arranged on the fixed frame (14); the driving gear (16) is meshed with the rack (15); the cutting knife (11) is fixed to an end of the rack (15) close to one end of the inner liner pipe (17); and the fixed frame (14) is fixedly mounted on the forming frame (1).

8. A spring processing device according to claim 3, characterized in that: The first limiting rod (9) and the second limiting rod (10) both comprise a sleeve column (91), a stud (92) and a limiting column (93); a fixing plate (34) is provided on the forming frame (1); one end of the sleeve column (91) is fixed on the fixing plate (34); the sleeve column (91) extends toward the center of the inner liner tube (17); the other end of the sleeve column (91) is fixedly connected to the stud (92); the other end of the stud (92) is fixedly connected to the limiting column (93); the guide plate (13) and the forming positioning plate (12) are slidably sleeved on the limiting column (93).

9. A spring processing device according to claim 8, characterized in that: The sleeve (91) is provided with an ear plate (94) at one end close to the stud (92), and a plurality of through holes (95) are arranged on the ear plate (94) in a circumferential array. A fastening groove (38) is arranged on the arc outer wall of the sleeve (91). An outer double ring (97) is fixedly mounted on the guide plate (13) and the forming positioning plate (12). An inner double ring (96) is sleeved on the stud (92), and the outer double ring (97) includes a first sleeve ring sleeved on the sleeve (91) and a second sleeve ring fixed on the guide plate (13). The second ring on the plate (13) and the forming and positioning plate (12), the first ring is provided with a fastening bolt (37) pressed on the fastening groove (38), a second spring (35) is pressed between the first ring and the ear plate (94), the first ring and the second ring are connected by a connecting rod sliding through the through hole (95), and the inner double ring (96) includes a screw ring threadedly mounted on the stud (92) and a pressure ring abutting against the end surface of the guide plate (13) and the forming and positioning plate (12).

10. An operating method implemented by the spring processing equipment according to any one of claims 1 to 9, characterized in that: The operation method comprises the following steps: Step 1: According to the size requirements of the spring to be produced, the positions of the first limiting rod (9) and the second limiting rod (10) are adjusted, and the positions of the guide plate (13) and the forming positioning plate (12) are adjusted by rotating the screw ring on the inner double ring (96) on the stud (92) to limit the outer diameter of the spring; Step 2: According to the size of the spring and the outer diameter of the raw material wire, the position of the limiter (18) is adjusted so that the width of the arc groove formed between the limiter (18) and the guide plate (13) and the forming positioning plate (12) is equal to the outer diameter of the raw material wire; Step 3: guiding the raw wire onto the guide plate (13), and winding it around the arc-shaped wire groove, cutting off the initial winding circle by using the cutting component (8), and then controlling the radial direction of the raw wire to form a spring extending along the wire groove spirally; Step 4: After forming, the plug plate (30) is used to be telescopically inserted into the gap of the spring and longitudinally pulled so that the spring is stretched. At this time, the gap between the first circle and the second circle at the end of the spring increases, and the cutting component (8) is used to cut the spring. The spring end after cutting becomes a free end, and under the traction of the plug plate (30), the elastic force is restored to move toward one end of the double-headed cone rod (25). At this time, the plug rod (30) is reset, and the first telescopic rod (22) drives the double-headed cone rod (25) to move outward, so that the end of the small cone rod (24) extends to the outside of the inner liner (17). At this time, the double-headed cone rod (25) rotates and tilts downward, so that the cut spring falls downward along the double-headed cone rod (25).

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