Steel wire shearing device for elastic check ring production

Abstract

The invention discloses a steel wire shearing device for elastic check ring production, and particularly relates to the technical field of elastic check ring production, which comprises a base, a steel wire placing roller, a straightening roller group for straightening a steel wire, a shearing groove body for placing the steel wire, a storage bin for storing the sheared steel wire and a cutter for shearing the steel wire, a central processing unit, a mounting frame and an opening and closing mechanism are arranged at the top of the base, a shearing groove plate is arranged at the bottom of the shearing groove body, a pressing mechanism and a correcting mechanism are arranged at the top of the mounting frame, and the pressing mechanism is used for pressing the two ends of a steel wire entering a shearing position. The opening and closing mechanism is used for controlling opening and closing of the shearing groove plate, and the correcting mechanism is used for straightening the sheared steel wire in a pressing mode. The problem of bending deformation caused by stress release after the steel wire is sheared is solved, intelligent detection and correction of the sheared steel wire are achieved, and the machining precision and the assembly quality of the check ring are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of elastic retaining ring production, and more specifically to a steel wire shearing device for producing elastic retaining rings. Background Art

[0002] Elastic retaining rings are a type of fastener widely used in the machinery, automobile, aviation, electronics and other industries. Their main function is to prevent parts from falling off due to axial movement by being stuck in the grooves of shaft or hole parts through their own elasticity, thereby playing a role of fixing, supporting or restricting. Elastic retaining rings are usually made of high-strength spring steel or stainless steel to ensure that they have good elasticity, wear resistance and fatigue resistance. One of the most basic links in their production process is the shearing of the raw material - steel wire. In the process of producing elastic retaining rings, the raw materials are usually provided in the form of rolled steel wires, which need to be accurately sheared into steel wire segments of a certain length for subsequent forming, heat treatment and surface treatment processes. However, since elastic retaining rings have high requirements for dimensional accuracy, strength and elasticity, traditional shearing methods are prone to cause deformation of the shearing surface, large burrs on the fracture, and even affect the elastic properties of the retaining ring. Therefore, professional steel wire shearing devices have become key equipment in the production process. The device can not only achieve high-precision fixed-length shearing of steel wires to ensure the consistency of subsequent forming dimensions, but also improve shearing efficiency, reduce material waste, and reduce tool wear, ultimately improving the overall quality and production efficiency of the elastic retaining ring.

[0003] The existing technology has the following deficiencies: During the production process of the elastic retaining ring, when the steel wire is sheared, due to the applied shear force and the characteristics of the steel wire material, stress release or plastic deformation may occur, resulting in bending and deformation of the steel wire segment after shearing. Specifically, under the action of the shear force, the high stress area generated by the blade near the shearing point may cause local plastic deformation of the steel wire, and this deformation cannot be fully recovered at the moment of shearing, causing the end of the steel wire to be slightly warped or bent. At the same time, the steel wire may have a certain amount of internal stress remaining in the production process, especially after rolling, cold drawing and other processes, these stresses are suddenly released during the shearing process, causing uneven rebound of the steel wire, and then bending of the steel wire segment after shearing. In addition, during the shearing process, if the steel wire is not fully clamped or fixed, the impact force at the moment of shearing may cause a slight displacement of the steel wire, causing the shear fracture to be offset or bent. The existing steel wire shearing device for the production of elastic retaining rings cannot prevent the bending and deformation of the steel wire after shearing due to stress release or shear force, affecting the shape accuracy and assembly quality of the retaining ring. This bending not only affects the shape of the steel wire, but may also cause shape errors in the subsequent stamping, bending or curling of the retaining ring, affecting the assembly accuracy of the retaining ring, resulting in irregular shapes, reducing the clamping force and sealing performance, and affecting its matching with the shaft groove or hole groove. In addition, if the steel wire fails to remain completely straight, additional straightening processes or manual corrections may be required, increasing production costs and processing time.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wire shearing device for producing elastic retaining rings to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A steel wire shearing device for producing elastic retaining rings, comprising a base, a steel wire placing roller, a straightening roller group for straightening the steel wire, a shearing trough for placing the steel wire, a storage bin for storing the sheared steel wire, and a cutter for shearing the steel wire, wherein a central processing unit, a mounting frame, and an opening and closing mechanism are respectively arranged on the top of the base, a shearing trough plate is arranged at the bottom of the shearing trough, and a clamping mechanism and a correcting mechanism are respectively arranged on the top of the mounting frame, wherein the clamping mechanism is used to clamp the two ends of the steel wire entering the shearing position, the opening and closing mechanism is used to control the opening and closing of the shearing trough plate, and the correcting mechanism is used to straighten the sheared steel wire; Also includes: The shear force acquisition module is arranged on one side of the top of the cutter, and is used to obtain the shear force applied by the cutter to the steel wire at different times in real time during the shearing process of the steel wire, and generate the shear force variation coefficient through the central processor; The length acquisition module is arranged on one side of the cutter, and is used to obtain the actual length of the steel wire at different times during the process of the cutter shearing the steel wire, and generate a length mutation index through the central processor; The central processing unit performs a comprehensive analysis on the generated shear force variation coefficient and length mutation index to generate a bending judgment coefficient, which is then compared with a preset bending judgment coefficient reference threshold. The comparison result is used to determine whether the steel wire is bent or deformed after the tool shears the steel wire, and the working states of the clamping mechanism, the opening and closing mechanism, and the correction mechanism are controlled based on the comparison result.

[0007] Preferably, the clamping mechanism includes a clamping cylinder, a clamping telescopic rod and a clamping block, the bottom of the clamping cylinder is fixedly connected to the top of the mounting frame, the output shaft of the clamping cylinder is transmission-connected to one end of the clamping telescopic rod, the other end of the clamping telescopic rod is fixedly connected to the top of the clamping block, and the bottom of the clamping block is provided with a groove for fitting the outer wall of the steel wire.

[0008] Preferably, the opening and closing mechanism includes an opening and closing cylinder mounting plate, an opening and closing cylinder, an opening and closing telescopic rod, a connecting block, a rotating shaft, a fixed shaft and a fixed block, the bottom of the opening and closing cylinder mounting plate is fixedly connected to the top of the base, the top of the opening and closing cylinder mounting plate is fixedly connected to the bottom of the opening and closing cylinder, the output shaft of the opening and closing cylinder is transmission-connected to one end of the opening and closing telescopic rod, the other end of the opening and closing telescopic rod is fixedly connected to one side of the connecting block, the other side of the connecting block is fixedly connected to the outer wall of the rotating shaft, the inner side wall of the rotating shaft is movably connected to the outer wall of the fixed shaft through a bearing, the two ends of the fixed shaft are fixedly connected to the inner side wall of the fixed block, and one side of the fixed block is fixedly connected to one side of the shear groove plate.

[0009] Preferably, the correction mechanism includes a motor, a gear transmission box, a screw, a sliding block, a connecting rod, a support plate, a correction cylinder, a correction telescopic rod, a connecting frame and a correction roller. The bottom of the motor is fixedly connected to the top of the mounting frame, the output shaft of the motor is transmission-connected to the input shaft of the gear transmission box, the output shaft of the gear transmission box is transmission-connected to one end of the screw, the outer wall of the screw is transmission-connected to the inner wall of the sliding block, one side of the sliding block is fixedly connected to one side of the connecting rod, the other side of the connecting rod is fixedly connected to one side of the support plate, the top of the support plate is fixedly connected to the bottom of the correction cylinder, the output shaft of the correction cylinder is transmission-connected to one end of the correction telescopic rod, the other end of the correction telescopic rod is fixedly connected to the top of the connecting frame, the inner side wall of the connecting frame is fixedly connected to both ends of the rotating shaft of the correction roller, and the outer wall of the correction roller is provided with a groove for fitting the outer wall of the steel wire.

[0010] Preferably, the output end of the central processing unit is electrically connected to the input end of the clamping cylinder, the input end of the opening and closing cylinder, the input end of the motor and the input end of the correction cylinder, respectively, and the output end and input end of the shear force collection module and the output end and input end of the length collection module are electrically connected to the input end and output end of the central processing unit, respectively.

[0011] Preferably, the acquisition logic of the shear force variation coefficient is: S1. The shear force acquisition module is used to obtain the shear force applied by the cutter to the steel wire at different times during the shearing process, and calibrate it as , Indicates that the tool is in the process of shearing the wire The shear force exerted by the cutter on the wire at all times, , is a positive integer; S2. Calculate the average value of the shear force applied by the cutter to the steel wire at different times during the shearing process. , according to the formula: ; S3. Calculate the shear force variation coefficient. The calculation expression is: In the formula, is the shear force variation coefficient.

[0012] Preferably, the acquisition logic of the length mutation index is: S1. The actual length of the steel wire at different times during the shearing process of the steel wire is obtained in real time through the length acquisition module, and calibrated as , Indicates that the tool is in the process of shearing the wire The actual length of the wire at that moment, , is a positive integer; S2. Calculate the average value of the actual length of the steel wire at different times during the process of the cutter cutting the steel wire. , according to the formula: ; S3. Calculate the length mutation index. The calculation expression is: In the formula, is the length mutation index.

[0013] Preferably, the bending judgment coefficient is expressed as: Formula analysis is performed through the central processing unit according to the formula: In the formula, is the bending judgment coefficient, and Shear force variation coefficient and length mutation index The preset scaling factor of and Both are greater than 0.

[0014] Preferably, the preset bending judgment coefficient reference threshold is set to , the calculated bending judgment coefficient is calculated by the central processor and the preset bending judgment coefficient reference threshold A comparison is performed, and according to the comparison result, it is determined whether the steel wire is bent and deformed after the cutter cuts the steel wire, and the working state of the clamping mechanism, the opening and closing mechanism, and the correction mechanism are controlled according to the comparison result. The specific judgment is as follows: when When the cutter cuts the steel wire, the steel wire does not bend or deform, and a normal signal is generated. After receiving the normal signal, the central processing unit generates a reset signal, a standby signal, and an opening signal, and transmits the reset signal to the clamping cylinder. After receiving the reset signal, the clamping cylinder controls the clamping mechanism to reset, and transmits the standby signal to the motor and the correction cylinder respectively. After receiving the standby signal, the motor and the correction cylinder control the correction mechanism to standby, and transmits the opening signal to the opening and closing cylinder. After receiving the opening signal, the opening and closing cylinder controls the opening and closing mechanism to open. when When the tool bends and deforms the steel wire after cutting it, an abnormal signal is generated. After receiving the abnormal signal, the central processing unit generates a holding signal and a correction signal, and transmits the holding signal to the clamping cylinder and the opening and closing cylinder respectively. After receiving the holding signal, the clamping cylinder and the opening and closing cylinder respectively control the clamping mechanism and the opening and closing mechanism to perform the holding work, and transmit the correction signal to the motor and the correction cylinder respectively. After receiving the correction signal, the motor and the correction cylinder control the correction mechanism to perform the correction work.

[0015] Technical effects and advantages of the present invention: 1. The present invention clamps both ends of the steel wire before shearing through a clamping mechanism to prevent displacement caused by impact force during the shearing process, so that the shearing point is evenly stressed and local plastic deformation is reduced. At the same time, the device is equipped with a correction mechanism. When it is detected that the steel wire is bent and deformed after shearing, the correction mechanism will roll and straighten the steel wire through the correction roller to restore it to a straight state, thereby ensuring that the steel wire after shearing has high-precision straightness. This method can effectively prevent the forming error of the retaining ring caused by the bending of the steel wire, avoid the deformation problem affecting the subsequent process (such as stamping, bending or curling), thereby improving the processing accuracy and assembly quality of the retaining ring.

[0016] 2. The present invention introduces a shear force acquisition module and a length acquisition module to respectively monitor the shear force fluctuation of the tool during the shearing process and the length change of the steel wire after shearing in real time, and further calculates the bending judgment coefficient by calculating the shear force change coefficient and the length mutation index. Through these intelligent data analyses, the central processing unit can accurately determine whether the steel wire is bent and deformed after shearing, and automatically adjust the working status of the clamping mechanism, the opening and closing mechanism, and the correction mechanism based on the judgment results. This intelligent detection and adjustment method avoids the errors of traditional equipment relying on manual detection, improves the stability of shearing quality, and reduces the defective rate.

[0017] 3. The present invention can not only realize the fully automatic closed-loop control of shearing-detection-correction, but also determine whether correction is needed based on the real-time detection results, thereby avoiding unnecessary straightening processes and improving production efficiency. Specifically, when the sheared steel wire has not been bent or deformed, the system will automatically control the opening and closing mechanism to open the shearing groove plate, allowing the steel wire to directly enter the storage bin; when the steel wire is bent or deformed, the system will keep the shearing groove plate closed and trigger the correction mechanism to correct it, ensuring that the corrected steel wire reaches the standard straightness before entering the storage bin. This intelligent control method reduces the additional straightening process and avoids the cumbersome process of traditional equipment that requires manual intervention for correction, thereby reducing production costs, improving overall production efficiency, and improving the qualification rate and market competitiveness of retaining ring products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 This is a schematic diagram of the three-dimensional structure of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 2 This is a front structural schematic diagram of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 3 This is a schematic diagram of the top structure of a wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 4 This is a schematic diagram of the installation structure of a pressing mechanism, an opening and closing mechanism and a correcting mechanism of a wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 5 This is a schematic diagram of the structure of a clamping mechanism of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 6 This is a schematic diagram of the installation structure of a cutter, a shear force collection module and a length collection module of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 7 This is a schematic diagram of the installation structure of a shearing trough body, a material storage bin, a shearing trough plate and an opening and closing mechanism of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Figure 8 This is a schematic diagram of the installation structure of a shearing groove plate and an opening and closing mechanism of a wire shearing device for producing elastic retaining rings proposed by the present invention; Fig. 9 A schematic diagram of the structure of an opening and closing mechanism of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Fig.10 This is a schematic diagram of the installation structure of the connecting block, rotating shaft, fixed shaft and fixed block of a wire shearing device for producing elastic retaining rings proposed by the present invention; Fig.11 A schematic diagram of the structure of a correction mechanism of a steel wire shearing device for producing elastic retaining rings proposed by the present invention; Fig.12 A schematic diagram of the installation structure of a correction cylinder, a correction telescopic rod, a connecting frame and a correction roller of a wire shearing device for producing elastic retaining rings proposed by the present invention; Fig.13 This is a schematic diagram of a module of a steel wire shearing device for producing elastic retaining rings proposed by the present invention.

[0019] In the figure: 1, base; 2, steel wire placement roller; 3, straightening roller group; 4, shearing trough; 5, storage bin; 6, tool; 7, central processing unit; 8, mounting frame; 9, shearing trough plate; 10, clamping mechanism; 1001, clamping cylinder; 1002, clamping telescopic rod; 1003, clamping block; 11, opening and closing mechanism; 1101, opening and closing cylinder mounting plate; 1102, opening and closing cylinder; 1103, opening and closing telescopic rod; 1104, connection Block; 1105, rotating shaft; 1106, fixed shaft; 1107, fixed block; 12, correction mechanism; 1201, motor; 1202, gear transmission box; 1203, screw rod; 1204, slider; 1205, connecting rod; 1206, support plate; 1207, correction cylinder; 1208, correction telescopic rod; 1209, connecting frame; 1210, correction roller; 13, shear force acquisition module; 14, length acquisition module. DETAILED DESCRIPTION

[0020] 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. Example

[0021] like Figure 1-13 As shown, a steel wire shearing device for producing elastic retaining rings comprises a base 1, a steel wire placing roller 2, a straightening roller group 3 for straightening the steel wire, a shearing trough body 4 for placing the steel wire, a storage bin 5 for storing the sheared steel wire, and a cutter 6 for shearing the steel wire. A central processing unit 7, a mounting frame 8, and an opening and closing mechanism 11 are respectively arranged on the top of the base 1, a shearing trough body 4 is provided with a shearing trough plate 9 at the bottom, and a clamping mechanism 10 and a correcting mechanism 12 are respectively arranged on the top of the mounting frame 8. The clamping mechanism 10 is used to clamp the two ends of the steel wire entering the shearing position, the opening and closing mechanism 11 is used to control the opening and closing of the shearing trough plate 9, and the correcting mechanism 12 is used to straighten the sheared steel wire. Also includes: The shear force acquisition module 13 is arranged on one side of the top of the cutter 6, and is used to obtain the shear force applied by the cutter 6 to the steel wire at different times during the shearing process of the cutter 6 in real time, and generate a shear force variation coefficient through the central processor 7; It should be noted that the shear force acquisition module 13 can be a piezoelectric shear force sensor, a high-precision pressure sensor or other equipment that can obtain in real time the shear force applied by the tool 6 to the steel wire at different times during the process of shearing the steel wire. The shear force acquisition module 13 is not specifically limited here and can be selected according to actual needs.

[0022] The length acquisition module 14 is arranged on one side of the cutter 6, and is used to obtain in real time the actual length of the steel wire at different times during the process of the cutter 6 cutting the steel wire, and generate a length mutation index through the central processor 7; It should be noted that the length acquisition module 14 can be a laser displacement sensor, an optical ranging sensor or other equipment that can obtain in real time the actual length of the steel wire at different times during the process of the tool 6 cutting the steel wire. The length acquisition module 14 is not specifically limited here and can be selected according to actual needs.

[0023] The central processing unit 7 performs a comprehensive analysis on the generated shear force variation coefficient and length mutation index to generate a bending judgment coefficient, which is compared with a preset bending judgment coefficient reference threshold. Based on the comparison result, it is determined whether the steel wire is bent and deformed after the tool 6 shears the steel wire, and the working states of the clamping mechanism 10, the opening and closing mechanism 11 and the correction mechanism 12 are controlled based on the comparison result.

[0024] The straightening roller group 3 is used to eliminate the bending deformation of the steel wire during the coiling and storage process, so that it maintains a straight state before entering the shearing trough 4, thereby improving the shearing accuracy and the quality of the retaining ring forming. The straightening roller group 3 can mainly straighten the steel wire by multi-roller bending correction, tension-controlled straightening, vibration-assisted straightening, rotation straightening and other methods. Among them, the multi-roller bending correction method is the most common method, which is usually composed of a group of staggered straightening rollers. When the steel wire passes through the roller group, it undergoes reverse bending and stress homogenization processes in sequence, so that the original bending state is gradually eliminated; the arrangement angle and clamping force of the roller can be adjusted according to the diameter, hardness and other parameters of the steel wire to achieve the best straightening effect. In addition, the tension-controlled straightening method applies a constant tension through the active roller driven by the servo motor, so that the steel wire is gradually straightened during the movement and the internal residual stress is released to improve the straightness; this method is particularly suitable for straightening high-strength steel wire or large-diameter steel wire. The vibration-assisted straightening method acts on the rollers through ultrasonic or high-frequency vibration devices, so that the internal stress of the steel wire is reduced during the vibration process and a more stable straight state is obtained, thereby improving the straightening effect. For steel wires of certain special specifications, a rotary straightening method can also be used, that is, when the steel wire passes through the roller group, a rotating roller is added to make the steel wire uniformly corrected in multiple axial directions, thereby improving the overall straightness. Finally, when the steel wire passes through the roller group, the straightening roller group 3 detects the straightness of the steel wire through a sensor, and dynamically adjusts the pressure, spacing or rotation angle of the roller according to the detection results to ensure that the steel wire reaches the best straightening state before being transported to the shear groove. The specific method of straightening the steel wire by the straightening roller group 3 is not specifically limited here, and can be selected according to actual needs.

[0025] In this embodiment, the clamping mechanism 10 includes a clamping cylinder 1001, a clamping telescopic rod 1002 and a clamping block 1003. The bottom of the clamping cylinder 1001 is fixedly connected to the top of the mounting frame 8. The output shaft of the clamping cylinder 1001 is transmission-connected to one end of the clamping telescopic rod 1002. The other end of the clamping telescopic rod 1002 is fixedly connected to the top of the clamping block 1003. The bottom of the clamping block 1003 is provided with a groove for fitting the outer wall of the steel wire.

[0026] It should be noted that two groups of clamping mechanisms 10 are provided in the present invention, and are respectively used for the two ends of the steel wire entering the shearing groove 4 and reaching the predetermined shearing position. More groups may also be provided. The specific number of the settings is not specifically limited here, and it is sufficient to meet the needs and not affect the shearing work of the steel wire.

[0027] The clamping mechanism 10 is used to clamp the two ends of the steel wire entering the shearing position to prevent the displacement of the steel wire due to uneven force or instantaneous impact during the shearing process, thereby ensuring the shearing accuracy. The specific implementation method is as follows: when the steel wire is transported to the shearing trough 4 by the feeding mechanism and reaches the predetermined shearing position, the central processing unit 7 sends a signal to control the clamping cylinder 1001 to start, and its output shaft drives the clamping telescopic rod 1002 to move downward, driving the clamping block 1003 to gradually descend. As the clamping block 1003 is pressed down, the groove set at its bottom will accurately fit the outer wall of the steel wire. Since the clamping mechanism 10 is provided with two groups, which are used for the two ends of the steel wire entering the shearing trough 4 and reaching the predetermined shearing position, the two ends of the steel wire are subjected to uniform clamping force, ensuring that no lateral or longitudinal displacement occurs during the shearing process.

[0028] In this embodiment, the opening and closing mechanism 11 includes an opening and closing cylinder mounting plate 1101, an opening and closing cylinder 1102, an opening and closing telescopic rod 1103, a connecting block 1104, a rotating shaft 1105, a fixed shaft 1106 and a fixed block 1107. The bottom of the opening and closing cylinder mounting plate 1101 is fixedly connected to the top of the base 1, the top of the opening and closing cylinder mounting plate 1101 is fixedly connected to the bottom of the opening and closing cylinder 1102, the output shaft of the opening and closing cylinder 1102 is transmission-connected to one end of the opening and closing telescopic rod 1103, the other end of the opening and closing telescopic rod 1103 is fixedly connected to one side of the connecting block 1104, the other side of the connecting block 1104 is fixedly connected to the outer wall of the rotating shaft 1105, the inner side wall of the rotating shaft 1105 is movably connected to the outer wall of the fixed shaft 1106 through a bearing, the two ends of the fixed shaft 1106 are fixedly connected to the inner side wall of the fixed block 1107, and one side of the fixed block 1107 is fixedly connected to one side of the shear groove plate 9.

[0029] The opening and closing mechanism 11 is used to control the opening and closing of the shearing slot plate 9 to ensure that the steel wire can smoothly fall into the storage bin 5 after shearing. The specific implementation method is as follows: the output shaft of the opening and closing cylinder 1102 pushes the opening and closing telescopic rod 1103 to retract, and one end of the opening and closing telescopic rod 1103 is fixedly connected to the connecting block 1104, so the linear movement of the opening and closing telescopic rod 1103 drives the connecting block 1104 to move. The other side of the connecting block 1104 is fixedly connected to the outer wall of the rotating shaft 1105, so when the connecting block moves, the rotating shaft 1105 rotates. The inner side wall of the rotating shaft 1105 is movably connected to the outer wall of the fixed shaft 1106 through a bearing, so that when the rotating shaft 1105 rotates, the fixed shaft 1106 provides support and makes the entire rotation process smooth and smooth. The two ends of the fixed shaft 1106 are fixedly connected to the inner wall of the fixed block 1107, and one side of the fixed block 1107 is fixedly connected to the shear groove plate 9. Therefore, when the rotating shaft 1105 rotates, the fixed block 1107 rotates accordingly, thereby driving the shear groove plate 9 to rotate and realize the opening of the shear groove. After the steel wire falls into the storage bin 5, the opening and closing cylinder 1102 extends in the opposite direction, driving the opening and closing telescopic rod 1103 to extend, and then drives the rotating shaft 1105 to rotate in the opposite direction through the connecting block 1104, so that the shear groove plate 9 returns to the initial closed position and waits for the next shearing operation. During the whole process, the opening and closing cylinder 1102 provides a power source, the opening and closing telescopic rod 1103 realizes linear motion, the rotating shaft 1105 converts the linear motion into rotational motion, and the fixed block 1107 finally drives the shear groove plate 9 to open and close accurately.

[0030] In this embodiment, the correction mechanism 12 includes a motor 1201, a gear transmission box 1202, a screw 1203, a sliding block 1204, a connecting rod 1205, a support plate 1206, a correction cylinder 1207, a correction telescopic rod 1208, a connecting frame 1209 and a correction roller 1210. The bottom of the motor 1201 is fixedly connected to the top of the mounting frame 8, the output shaft of the motor 1201 is drivingly connected to the input shaft of the gear transmission box 1202, the output shaft of the gear transmission box 1202 is drivingly connected to one end of the screw 1203, the outer wall of the screw 1203 is drivingly connected to the inner wall of the sliding block 1204, and the screw 1203 is drivingly connected to the inner wall of the sliding block 1204. Connection, one side of the sliding block 1204 is fixedly connected to one side of the connecting rod 1205, the other side of the connecting rod 1205 is fixedly connected to one side of the support plate 1206, the top of the support plate 1206 is fixedly connected to the bottom of the correction cylinder 1207, the output shaft of the correction cylinder 1207 is transmission-connected to one end of the correction telescopic rod 1208, the other end of the correction telescopic rod 1208 is fixedly connected to the top of the connecting frame 1209, the inner side wall of the connecting frame 1209 is fixedly connected to the two ends of the rotating shaft of the correction roller 1210, and the outer wall of the correction roller 1210 is provided with a groove for fitting the outer wall of the steel wire.

[0031] It should be noted that the gear transmission box 1202 can mainly transmit the rotational kinetic energy output by the motor 1201 to the screw 1203 through the mutual cooperation between its internal gears, and then control the rotation of the screw 1203. The specific cooperation method of the internal gears of the gear transmission box 1202 is not specifically limited here, and it is sufficient to meet the needs.

[0032] The correction mechanism 12 is used to press the sheared steel wire straight to ensure that the end of the steel wire returns to a straight state. The specific implementation method is as follows: when the correction cylinder 1207 is started, its output shaft pushes the correction telescopic rod 1208 to extend downward, driving the connecting frame 1209 fixed at its end to descend synchronously, so that the correction roller 1210 gradually fits the sheared steel wire. The outer wall of the correction roller 1210 is provided with a groove for fitting the outer wall of the steel wire, ensuring that it can fit tightly to the surface of the steel wire when pressed down, and applying appropriate pressure to prevent the steel wire from shifting or sliding during the correction process. After the correction roller 1210 completely presses the steel wire, the motor 1201 is started, and its output shaft drives the gear set in the gear transmission box 1202 to operate, and the gear set transmits the rotational power of the motor 1201 to the screw 1203, causing it to rotate axially. The outer wall of the screw rod 1203 is connected to the inner wall of the sliding block 1204 by transmission, so when the screw rod 1203 rotates, the sliding block 1204 moves along the axial direction of the screw rod. One side of the sliding block 1204 is fixedly connected to the connecting rod 1205, so that the movement of the sliding block 1204 will synchronously drive the connecting rod 1205 to move horizontally, thereby driving the support plate 1206 to move toward the steel wire. In this process, the correction roller 1210 rolls on the surface of the steel wire, and the bending deformation caused by the stress release after the steel wire is sheared is eliminated through the rolling action, so that it returns to a straight state. The screw rod 1203, the sliding block 1204, the connecting rod 1205 and the supporting plate 1206 work together to ensure that the correction roller 1210 rolls smoothly along the length direction of the steel wire, while the correction cylinder 1207, the correction telescopic rod 1208 and the connecting frame 1209 provide sufficient downward pressure to ensure that the correction roller 1210 always keeps in contact with the surface of the steel wire during the correction process to ensure the correction effect. When the steel wire is corrected, the motor 1201 stops rotating, the sliding block 1204 stops moving, and the correction roller 1210 stops rolling. Subsequently, the correction cylinder 1207 retracts in the reverse direction, driving the correction telescopic rod 1208 and the connecting frame 1209 to rise, so that the correction roller 1210 is separated from the surface of the steel wire. At the same time, the motor 1201 rotates in the reverse direction, and the screw rod 1203 drives the sliding block 1204 and its related components back to the initial position to prepare for the next correction operation. During the whole process, all parts work closely together to ensure that the steel wire can quickly return to a straight state after shearing, thereby improving the processing accuracy and assembly quality of the retaining ring.

[0033] In this embodiment, the output end of the central processing unit 7 is electrically connected to the input end of the pressing cylinder 1001, the input end of the opening and closing cylinder 1102, the input end of the motor 1201, and the input end of the correction cylinder 1207, and the output end and input end of the shear force acquisition module 13 and the output end and input end of the length acquisition module 14 are electrically connected to the input end and output end of the central processing unit 7 respectively; It should be noted that electrical connection refers to the process of transmitting electric current from one part of an electronic device or circuit to another part through conductive materials or conductive elements. This connection is a key component of the operation of electronic devices and circuits. It ensures the effective transmission and connection of electron flow in electronic devices. Electrical connection can be made using wires. The electrical connection method between the central processing unit 7 and the clamping cylinder 1001, opening and closing cylinder 1102, motor 1201, correction cylinder 1207, shear force acquisition module 13 and length acquisition module 14 is not specifically limited and can be selected according to actual needs.

[0034] During the production process of elastic retaining rings, when the steel wire is sheared, due to the applied shear force and the characteristics of the steel wire material, stress release or plastic deformation may occur, resulting in bending and deformation of the steel wire segment after shearing. Specifically, under the action of shear force, the high stress area generated by the blade near the shearing point may cause local plastic deformation of the steel wire, and this deformation cannot be fully recovered at the moment of shearing, causing the end of the steel wire to be slightly warped or bent. At the same time, the steel wire may have a certain amount of internal stress remaining in the production process, especially after rolling, cold drawing and other processes. These stresses are suddenly released during the shearing process, causing uneven rebound of the steel wire, and then bending of the steel wire segment after shearing. In addition, during the shearing process, if the steel wire is not fully clamped or fixed, the impact force at the moment of shearing may cause a slight displacement of the steel wire, causing the shear fracture to be offset or bent. The existing steel wire shearing device for the production of elastic retaining rings cannot prevent the bending and deformation of the steel wire after shearing due to stress release or shear force, affecting the shape accuracy and assembly quality of the retaining ring. This bending not only affects the shape of the steel wire, but may also cause shape errors in the subsequent stamping, bending or curling of the retaining ring, affecting the assembly accuracy of the retaining ring, resulting in irregular shapes, reducing the clamping force and sealing performance, and affecting its matching with the shaft groove or hole groove. In addition, if the steel wire fails to remain completely straight, additional straightening processes or manual corrections may be required, increasing production costs and processing time.

[0035] Therefore, it is necessary to solve the problem of bending deformation of the steel wire caused by stress release or shear force after shearing. If the steel wire is bent and deformed after shearing, it will not only affect the geometric accuracy of the retaining ring, causing shape errors in the subsequent stamping, bending or curling process, but may also cause problems such as dislocation, looseness or overtightening during the assembly process, reduce the clamping force and sealing performance of the retaining ring, affect its matching degree with the shaft groove or hole groove, and ultimately affect the stability and service life of the mechanical system. In addition, the bent and deformed steel wire may require additional straightening processes or manual corrections, increase production costs, reduce production efficiency, and may cause material waste. Therefore, the significance of solving this technical problem is to improve the straightness of the steel wire after shearing, ensure the dimensional accuracy of the retaining ring from the source, reduce subsequent processing errors, and improve assembly reliability, while reducing production costs and material losses, enhancing product consistency, and improving production efficiency, and ultimately ensuring that the retaining ring can be stably and reliably used in various precision mechanical structures.

[0036] In this embodiment, the shear force variation coefficient is a parameter used to measure the stability and uniformity of the shear force applied by the cutter 6 during the shearing process. It obtains the shear force data applied by the cutter 6 to the steel wire in real time during the shearing process through the shear force acquisition module 13, and calculates the relative fluctuation of the shear force at different time points. The size of the shear force variation coefficient directly affects the judgment of whether the steel wire is bent and deformed after shearing: when the shear force variation coefficient is small, it indicates that the shear force applied by the cutter 6 during the shearing process is relatively uniform, the stress distribution near the shearing point is stable, and the end of the steel wire will not cause plastic deformation or stress release rebound due to local uneven force after shearing, thereby maintaining a straight line state; when the shear force variation coefficient is large, it means that the shear force of the cutter 6 on the steel wire fluctuates greatly, and the local shear force may be too high or too low, causing the steel wire to undergo non-uniform plastic deformation during the shearing process, resulting in warping, bending or bending deformation of the end of the steel wire after shearing. Therefore, the calculation of the shear force variation coefficient can provide an important basis for judging the deformation of the steel wire after shearing, and can optimize the shearing process in combination with the length mutation index to ensure the straightness of the steel wire after shearing and improve the precision and assembly quality of the finished retaining ring.

[0037] The logic for obtaining the shear force variation coefficient is: S1. The shear force acquisition module 13 is used to obtain the shear force applied by the cutter 6 to the steel wire at different times during the shearing process of the steel wire in real time, and calibrate it as , Indicates that the cutter 6 is in the process of shearing the wire The shear force applied by the cutter 6 to the wire at the moment, , is a positive integer; S2. Calculate the average value of the shearing force applied by the cutter 6 to the steel wire at different times during the shearing process of the steel wire. , according to the formula: ; S3. Calculate the shear force variation coefficient. The calculation expression is: In the formula, is the shear force variation coefficient.

[0038] In this embodiment, the length mutation index is a parameter used to measure the length stability and mutation degree of the steel wire after shearing. By collecting the actual length of the steel wire at different times after shearing and calculating the degree of change relative to the average length, it is evaluated whether the steel wire has undergone abnormal deformation during the shearing process. The length mutation index obtains the length data of the steel wire at different time points after shearing in real time through the length acquisition module 14, and calculates the fluctuation range of the steel wire length using a mathematical formula, and finally generates a length mutation index value reflecting the stability of the steel wire length. The size of the length mutation index is directly related to judging whether the steel wire has undergone bending deformation after shearing: when the length mutation index value is small, it means that the length of the steel wire after shearing is basically stable, the shearing quality is high, and the steel wire is not affected by obvious stress release or shear force fluctuations, so no significant bending deformation will occur; when the length mutation index value is large, it means that the length of the steel wire after shearing has large fluctuations at different time points, indicating that uneven stress release, unstable shear force or local deformation caused by material properties may have occurred during the shearing process, resulting in bending deformation of the steel wire after shearing. By calculating the length mutation index, an objective basis can be provided for judging the quality of wire shearing, and the shearing parameters can be optimized in combination with the shear force variation coefficient to ensure the straightness of the wire after shearing and improve the manufacturing accuracy and assembly quality of the elastic retaining ring.

[0039] The logic for obtaining the length mutation index is: S1. The actual length of the steel wire at different times during the shearing process of the steel wire by the cutter 6 is obtained in real time by the length acquisition module 14, and calibrated as , Indicates that the cutter 6 is in the process of shearing the wire The actual length of the wire at that moment, , is a positive integer; S2. Calculate the average value of the actual length of the steel wire at different times during the process of the cutter 6 cutting the steel wire. , according to the formula: ; S3. Calculate the length mutation index. The calculation expression is: In the formula, is the length mutation index.

[0040] In this embodiment, the expression formula of the bending judgment coefficient is: Will and After dimensionless processing, the central processing unit 7 performs a formula analysis according to the formula: In the formula, is the bending judgment coefficient, and Shear force variation coefficient and length mutation index The preset scaling factor of and All are greater than 0; From the calculated expression, we can know that the shear force variation coefficient and length mutation index The greater the bending judgment coefficient is, the the bigger it is; It should be noted that dimensionless is a process of expressing physical quantities in dimensionless form. This method can eliminate the influence of units on physical problems, making the problem more concise and universal. and length mutation index Preset scaling factor and In order to more flexibly adapt to different working conditions and environmental changes in actual monitoring, these deviation coefficients can be adjusted according to specific circumstances to improve the performance and applicability of the monitoring system.

[0041] In this embodiment, the preset bending judgment coefficient reference threshold is set to The calculated bending judgment coefficient is calculated by the central processing unit 7 and the preset bending judgment coefficient reference threshold A comparison is performed, and it is determined according to the comparison result whether the steel wire is bent and deformed after the cutter 6 shears the steel wire, and the working states of the clamping mechanism 10, the opening and closing mechanism 11 and the correction mechanism 12 are controlled according to the comparison result. The specific determination is as follows: when When the cutter 6 cuts the steel wire, the steel wire does not bend or deform, and a normal signal is generated. After receiving the normal signal, the central processing unit 7 generates a reset signal, a standby signal and an opening signal, and transmits the reset signal to the clamping cylinder 1001. After receiving the reset signal, the clamping cylinder 1001 controls the clamping mechanism 10 to reset, and transmits the standby signal to the motor 1201 and the correction cylinder 1207 respectively. After receiving the standby signal, the motor 1201 and the correction cylinder 1207 control the correction mechanism 12 to standby, and transmits the opening signal to the opening and closing cylinder 1102. After receiving the opening signal, the opening and closing cylinder 1102 controls the opening and closing mechanism 11 to open. The resetting operation means that after the clamping cylinder 1001 receives the resetting signal, it controls the clamping telescopic rod 1002 to retract, and then controls the clamping block 1003 to gradually move away from the surface of the steel wire until it is completely separated from the steel wire and no longer applies a clamping force to the steel wire. At the same time, the clamping cylinder 1001 continues to operate to ensure that the clamping telescopic rod 1002 and the clamping block 1003 completely return to the initial position to prepare for the next shearing operation, that is, to control the clamping mechanism 10 to perform the resetting operation.

[0042] Standby operation means that after receiving the standby signal, the motor 1201 and the correction cylinder 1207 maintain the initial position, do not perform any action, and wait for the next instruction, that is, control the correction mechanism 12 to perform standby operation.

[0043] The opening operation means that after the opening and closing cylinder 1102 receives the opening signal, the output shaft of the opening and closing cylinder 1102 pushes the opening and closing telescopic rod 1103 to retract, driving the connecting block 1104 to move, and through the set rotating shaft 1105, fixed shaft 1106 and fixed block 1107, the shear groove plate 9 is driven to rotate, thereby realizing the opening of the shear groove, and then the sheared steel wire falls into the storage bin 5, that is, the opening and closing mechanism 11 is controlled to perform the opening operation.

[0044] when When the cutter 6 bends and deforms the steel wire after cutting it, an abnormal signal is generated. After receiving the abnormal signal, the central processing unit 7 generates a holding signal and a correction signal, and transmits the holding signal to the clamping cylinder 1001 and the opening and closing cylinder 1102 respectively. After the clamping cylinder 1001 and the opening and closing cylinder 1102 receive the holding signal, they control the clamping mechanism 10 and the opening and closing mechanism 11 to perform the holding work respectively, and transmit the correction signal to the motor 1201 and the correction cylinder 1207 respectively. After receiving the correction signal, the motor 1201 and the correction cylinder 1207 control the correction mechanism 12 to perform the correction work.

[0045] The holding operation means that when the clamping cylinder 1001 and the opening and closing cylinder 1102 receive the holding signal, the clamping mechanism 10 continues to maintain the clamping state, so that the clamping block 1003 stably clamps the two ends of the steel wire to prevent the steel wire from shifting during the correction process; at the same time, the opening and closing mechanism 11 keeps the shear groove plate 9 in a closed state, providing a stable bottom support for the steel wire, ensuring that the correction roller 1210 can apply uniform pressure, so that the steel wire can be smoothly restored to a straight state. During the whole process, the clamping mechanism 10 and the opening and closing mechanism 11 maintain the current working state until the correction mechanism 12 completes the straightening correction of the steel wire, ensuring that the correction process is stable and efficient.

[0046] Correction work means: after the motor 1201 and the correction cylinder 1207 receive the correction signal, the correction cylinder 1207 starts, pushes the correction telescopic rod 1208 downward, makes the correction roller 1210 fit the sheared steel wire, and applies appropriate pressure to ensure stable contact. Subsequently, the motor 1201 drives the gear transmission box 1202, drives the screw 1203 to rotate, makes the sliding block 1204 move axially, and then pushes the connecting rod 1205 and the support plate 1206, drives the correction roller 1210 to roll on the surface of the steel wire, eliminates the bending deformation caused by stress release after shearing through rolling, and restores the steel wire to a straight state. After the correction is completed, the motor 1201 stops, the correction cylinder 1207 retracts, makes the correction roller 1210 detach from the steel wire, and drives all related components to reset, ready for the next correction.

[0047] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0048] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0049] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0050] In the several embodiments provided in the present application, it should be understood that the disclosed overall system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another overall system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0051] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0052] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A steel wire shearing device for producing elastic retaining rings, comprising a base (1), a steel wire placing roller (2), a straightening roller group (3) for straightening the steel wire, a shearing trough (4) for placing the steel wire, a storage bin (5) for storing the sheared steel wire, and a cutter (6) for shearing the steel wire, characterized in that: The top of the base (1) is provided with a central processing unit (7), a mounting frame (8) and an opening and closing mechanism (11), the bottom of the shearing slot body (4) is provided with a shearing slot plate (9), and the top of the mounting frame (8) is provided with a clamping mechanism (10) and a correcting mechanism (12), the clamping mechanism (10) is used to clamp the two ends of the steel wire entering the shearing position, the opening and closing mechanism (11) is used to control the opening and closing of the shearing slot plate (9), and the correcting mechanism (12) is used to straighten the steel wire after shearing; Also includes: A shear force acquisition module (13) is arranged on one side of the top of the cutter (6) and is used to obtain in real time the shear force applied by the cutter (6) to the steel wire at different times during the process of the cutter (6) shearing the steel wire, and to generate a shear force variation coefficient through a central processor (7); A length acquisition module (14) is arranged on one side of the cutter (6) and is used to obtain in real time the actual length of the steel wire at different moments in the process of the cutter (6) shearing the steel wire, and to generate a length mutation index through a central processor (7); The generated shear force variation coefficient and length mutation index are comprehensively analyzed by the central processing unit (7) to generate a bending judgment coefficient, which is then compared with a preset bending judgment coefficient reference threshold value, and it is determined based on the comparison result whether the steel wire is bent and deformed after the cutter (6) shears the steel wire, and the working states of the clamping mechanism (10), the opening and closing mechanism (11) and the correction mechanism (12) are controlled based on the comparison result.

2. A wire shearing device for producing elastic retaining rings according to claim 1, characterized in that: The clamping mechanism (10) comprises a clamping cylinder (1001), a clamping telescopic rod (1002) and a clamping block (1003); the bottom of the clamping cylinder (1001) is fixedly connected to the top of the mounting frame (8); the output shaft of the clamping cylinder (1001) is drivingly connected to one end of the clamping telescopic rod (1002); the other end of the clamping telescopic rod (1002) is fixedly connected to the top of the clamping block (1003); and the bottom of the clamping block (1003) is provided with a groove for fitting against the outer wall of the steel wire.

3. A wire shearing device for producing elastic retaining rings according to claim 2, characterized in that: The opening and closing mechanism (11) comprises an opening and closing cylinder mounting plate (1101), an opening and closing cylinder (1102), an opening and closing telescopic rod (1103), a connecting block (1104), a rotating shaft (1105), a fixed shaft (1106) and a fixed block (1107); the bottom of the opening and closing cylinder mounting plate (1101) is fixedly connected to the top of the base (1); the top of the opening and closing cylinder mounting plate (1101) is fixedly connected to the bottom of the opening and closing cylinder (1102); the output shaft of the opening and closing cylinder (1102) is fixedly connected to the opening and closing telescopic rod (1103); The invention relates to a first embodiment of the present invention, wherein the first and second ends of the first and second telescopic rods (1103) are transmission connected to one end of the first and second telescopic rods (1103), the other end of the opening and closing telescopic rod (1103) is fixedly connected to one side of the connecting block (1104), the other side of the connecting block (1104) is fixedly connected to the outer wall of the rotating shaft (1105), the inner wall of the rotating shaft (1105) is movably connected to the outer wall of the fixed shaft (1106) via a bearing, the two ends of the fixed shaft (1106) are fixedly connected to the inner wall of the fixed block (1107), and one side of the fixed block (1107) is fixedly connected to one side of the shear groove plate (9).

4. A wire shearing device for producing elastic retaining rings according to claim 3, characterized in that: The correction mechanism (12) comprises a motor (1201), a gear transmission box (1202), a screw (1203), a sliding block (1204), a connecting rod (1205), a support plate (1206), a correction cylinder (1207), a correction telescopic rod (1208), a connecting frame (1209) and a correction roller (1210), wherein the bottom of the motor (1201) is fixedly connected to the top of the mounting frame (8), the output shaft of the motor (1201) is drivingly connected to the input shaft of the gear transmission box (1202), the output shaft of the gear transmission box (1202) is drivingly connected to one end of the screw (1203), the outer wall of the screw (1203) is drivingly connected to the inner wall of the sliding block (1204), and the screw (1203) is drivingly connected to the inner wall of the sliding block (1204). The sliding block (1204) is dynamically connected, one side of the sliding block (1204) is fixedly connected to one side of the connecting rod (1205), the other side of the connecting rod (1205) is fixedly connected to one side of the supporting plate (1206), the top of the supporting plate (1206) is fixedly connected to the bottom of the correcting cylinder (1207), the output shaft of the correcting cylinder (1207) is transmission-connected to one end of the correcting telescopic rod (1208), the other end of the correcting telescopic rod (1208) is fixedly connected to the top of the connecting frame (1209), the inner side wall of the connecting frame (1209) is fixedly connected to the two ends of the central shaft of the correcting roller (1210), and the outer wall of the correcting roller (1210) is provided with a groove for fitting the outer wall of the steel wire.

5. A wire shearing device for producing elastic retaining rings according to claim 4, characterized in that: The output end of the central processing unit (7) is electrically connected to the input end of the pressing cylinder (1001), the input end of the opening and closing cylinder (1102), the input end of the motor (1201), and the input end of the correction cylinder (1207), respectively; the output end and input end of the shear force acquisition module (13) and the output end and input end of the length acquisition module (14) are electrically connected to the input end and output end of the central processing unit (7), respectively.

6. A wire shearing device for producing elastic retaining rings according to claim 5, characterized in that: The acquisition logic of the shear force variation coefficient is: S1. The shear force acquisition module (13) is used to obtain in real time the shear force applied by the cutter (6) to the steel wire at different times during the shearing process of the steel wire, and calibrate it as , Indicates that the cutter (6) is in the process of shearing the wire. The shear force applied by the cutter (6) to the wire at that moment, , is a positive integer; S2. Calculate the average value of the shearing force applied by the cutter (6) to the steel wire at different times during the process of cutting the steel wire. , according to the formula: ; S3. Calculate the shear force variation coefficient. The calculation expression is: In the formula, is the shear force variation coefficient.

7. A wire shearing device for producing elastic retaining rings according to claim 6, characterized in that: The acquisition logic of the length mutation index is: S1. The actual length of the steel wire at different times during the shearing process of the steel wire by the cutter (6) is obtained in real time through the length acquisition module (14), and calibrated as , Indicates that the cutter (6) is in the process of shearing the wire. The actual length of the wire at that moment, , is a positive integer; S2. Calculate the average value of the actual length of the steel wire at different times during the process of the tool (6) cutting the steel wire. , according to the formula: ; S3. Calculate the length mutation index. The calculation expression is: In the formula, is the length mutation index.

8. A wire shearing device for producing elastic retaining rings according to claim 7, characterized in that: The expression formula of the bending judgment coefficient is: The central processing unit (7) performs a formula analysis according to the formula: In the formula, is the bending judgment coefficient, and Shear force variation coefficient and length mutation index The preset scaling factor of and Both are greater than 0.

9. A wire shearing device for producing elastic retaining rings according to claim 8, characterized in that: The preset bending judgment coefficient reference threshold is set to , the calculated bending judgment coefficient is converted into and the preset bending judgment coefficient reference threshold A comparison is performed, and based on the comparison result, it is determined whether the steel wire is bent and deformed after the cutter (6) shears the steel wire, and the working states of the clamping mechanism (10), the opening and closing mechanism (11) and the correcting mechanism (12) are controlled based on the comparison result. The specific determination is as follows: when When the cutter (6) cuts the steel wire, the steel wire does not bend or deform, and a normal signal is generated. After receiving the normal signal, the central processing unit (7) generates a reset signal, a standby signal, and an opening signal, and transmits the reset signal to the clamping cylinder (1001). After receiving the reset signal, the clamping cylinder (1001) controls the clamping mechanism (10) to perform a reset operation, and transmits the standby signal to the motor (1201) and the correction cylinder (1207) respectively. After receiving the standby signal, the motor (1201) and the correction cylinder (1207) control the correction mechanism (12) to perform a standby operation, and transmits the opening signal to the opening and closing cylinder (1102). After receiving the opening signal, the opening and closing cylinder (1102) controls the opening and closing mechanism (11) to perform an opening operation; when When the cutter (6) bends and deforms the steel wire after shearing it, an abnormal signal is generated. After receiving the abnormal signal, the central processing unit (7) generates a holding signal and a correction signal, and transmits the holding signal to the clamping cylinder (1001) and the opening and closing cylinder (1102) respectively. After receiving the holding signal, the clamping cylinder (1001) and the opening and closing cylinder (1102) respectively control the clamping mechanism (10) and the opening and closing mechanism (11) to perform a holding operation, and transmits the correction signal to the motor (1201) and the correction cylinder (1207) respectively. After receiving the correction signal, the motor (1201) and the correction cylinder (1207) control the correction mechanism (12) to perform a correction operation.

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