Automatic spring winding device and method for volute spiral spring machining

Abstract

The invention discloses an automatic spring winding device and method for volute spiral spring machining, and relates to the technical field of spring machining. The device comprises a machining platform arranged on a base and a metal wire for preparing the volute spiral spring, and further comprises a winding box arranged on the machining platform and used for providing a machining place for winding of the metal wire; the feeding unit is arranged on the winding box and comprises a feeding assembly and a cutting assembly; the winding unit is arranged on the winding box and comprises a winding assembly and a ring distance adjusting assembly. The volute spiral spring winding device has the advantages that the size of the inner ring of the volute spiral spring and the distance between every two adjacent rings can be flexibly adjusted according to actual preparation requirements, winding of volute spiral springs of different sizes and shapes is achieved, the volute spiral springs with different elastic coefficients can be prepared, the lengths of the volute spiral springs can be flexibly controlled during winding, and the winding efficiency of the volute spiral springs is improved. And the metal wires are automatically cut off after being wound, so that the adaptability is higher.

Description

Technical Field

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

[0002] A spiral spring is a special spring with multiple spiral coils formed by spirally winding a metal wire. It is mainly used in small or medium-sized mechanical systems. The spiral spring is usually prepared by an automatic spring winding device.

[0003] Existing winding devices use a variety of methods to achieve automatic winding of spiral springs, such as a spiral spring winding tool with publication number CN202323159267.9, which includes a vertical plate and an auxiliary strip, a winding column is rotatably arranged at the center of the vertical plate, a clamping groove for clamping the auxiliary strip is opened on the winding column, a crank handle is arranged at the tail end of the winding column, an operating rod is rotatably arranged on the front of the vertical plate through a rotating pin, the other end of the operating rod is a grip, a limit plate is arranged on the operating rod, and a long strip-shaped adjustment slot is arranged on the operating rod;

[0004] The existing winding device usually realizes automatic winding of the spiral spring by fixing the front end and then performing the center winding. This winding method cannot control the size of the center inner circle of the spiral spring, that is, only spiral springs with the same center inner circle can be prepared. For example, in the above-mentioned prior art, the outer diameter of the winding column used in the device cannot be adjusted, so that the inner circle of the spiral spring is attached to the outside of the winding column during winding, and the size of the center inner circle cannot be adjusted. At the same time, the winding method of the device cannot control the spacing between adjacent rings, and the size of the spiral spring formed by winding is different and cannot be adjusted.

[0005] Therefore, it is urgent to design an automatic spring winding device and method for spiral spring processing to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automatic spring winding device and method for processing a scroll spring, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic spring winding device for processing a scroll spring, comprising a processing platform arranged on a base and a metal wire for preparing a scroll spring, and also comprising:

[0008] The winding box is arranged on the processing platform and is used to provide a processing place for the coiling of the metal wire;

[0009] A feeding unit is arranged on the winding box and is used to realize stable feeding of the metal wire and cutting after winding, including a feeding assembly for realizing feeding of the metal wire and a cutting assembly for cutting the metal wire;

[0010] The winding unit is arranged on the winding box and is used for winding the metal wire and preparing the spiral spring. It includes a winding assembly and a turn adjustment assembly. The winding assembly is used for winding the metal wire, and the turn adjustment assembly is used for adjusting the forming turn distance of the spiral spring.

[0011] Preferably, a control console is provided on the processing platform, and the control console is used to control the opening and closing and operating status of the feeding unit and the winding unit to realize the automated winding preparation of the spiral spring.

[0012] Preferably, the feeding assembly includes a conveying box fixedly mounted on the winding box, a conveying motor is arranged in the base, and a wire wheel for placing the metal wire is arranged on the driving end of the conveying motor, and a feeding straight groove matching the metal wire is opened in the conveying box.

[0013] Preferably, the cutting assembly comprises two electric telescopic rods arranged in the conveying box, the driving ends of the two electric telescopic rods are fixedly mounted with moving plates, the two moving plates are fixedly mounted with positioning pressing plates matching the metal wires through a plurality of limit springs, and the two moving plates are fixedly mounted with cutting knives for cutting the metal wires;

[0014] A length measuring sensor is arranged in the conveying box, and the length measuring sensor cooperates with the metal wire.

[0015] Preferably, the winding assembly includes a servo motor arranged on a processing platform, a driving roller is arranged on the driving end of the servo motor, and a cooling assembly is installed between the driving roller and the winding box, a fixed cylinder is fixedly installed on the driving roller, and a connecting hole matching the fixed cylinder is opened in the winding box, and a distance adjustment mechanism for adjusting the inner diameter of the spiral spring is arranged in the fixed cylinder.

[0016] Preferably, the distance adjusting mechanism includes an inner roller fixedly installed in a fixed cylinder, a plurality of electromagnetic arc plates 1 are fixedly installed on the inner roller, a plurality of connecting columns are slidably installed in the fixed cylinder, an outer arc plate and an electromagnetic arc plate 2 are fixedly installed at both ends of each of the connecting columns, and each electromagnetic arc plate 2 cooperates with the corresponding electromagnetic arc plate 1, a plurality of engaging grooves cooperating with metal wires are opened on the fixed cylinder, and a plurality of limit rods are arranged between each of the outer arc plates and the corresponding electromagnetic arc plate 2.

[0017] Preferably, the cooling component includes a bellows fixedly mounted in a winding box, and a plurality of air guide holes are opened on the bellows, a linkage roller is rotatably mounted on the bellows, a driving wheel is fixedly mounted on the driving roller, a driven wheel is fixedly mounted on the linkage roller, and a transmission belt is sleeved between the driving wheel and the driven wheel, a wind impeller is fixedly mounted on the linkage roller, and the wind impeller is located in the bellows, and a plurality of air guide ducts for air outlet are provided on the winding box.

[0018] Preferably, the circle spacing adjustment assembly includes a plurality of push boxes arranged on the winding box, a conveying rod is slidably installed in each of the push boxes, a plurality of hydraulic push rods are arranged on the winding box, and the driving end of each hydraulic push rod is fixedly installed on the corresponding conveying rod, and an arc limiting roller matching the metal wire is fixedly installed on each of the conveying rods.

[0019] Preferably, an automatic spring winding method for processing a scroll spring, used for the automatic spring winding device for processing a scroll spring, comprises the following steps:

[0020] S1. When winding the spiral spring, first place the raw metal wire for preparing the spiral spring in the feeding unit;

[0021] S2, control the start of the winding assembly according to the inner diameter of the scroll spring and adjust the winding inner diameter;

[0022] S3, realizing stable conveying and feeding of metal wires through the feeding assembly in the feeding unit;

[0023] S4, during the metal wire feeding process, the winding assembly is started to realize the winding of the scroll spring, and during the winding process, the coil spacing of the scroll spring is controlled by the coil spacing adjustment assembly;

[0024] S5. After winding is completed, start the cutting assembly to cut the metal wire and remove the spiral spring.

[0025] Preferably, during the metal wire feeding process, the length measuring sensor measures the feeding and conveying length of the metal wire, thereby controlling the number and size of the rings of the spiral spring and achieving fixed-length winding of the spiral spring.

[0026] The present invention provides an automatic spring winding device and method for processing a scroll spring, which has the following beneficial effects:

[0027] 1. When the winding device is winding the scroll spring, the feeding assembly can realize the automatic feeding of the metal wire, and the metal wire can be effectively limited by the clamping of the two positioning plates during the feeding process to avoid the metal wire from falling or deflecting during the feeding process.

[0028] 2. When the winding device is winding the spiral spring, the distance between multiple outer arc plates can be flexibly adjusted through the cooperation of the distance adjustment mechanism, thereby flexibly changing the outer arc size of the multiple outer arc plates, that is, spiral springs with different inner ring sizes can be wound according to actual needs.

[0029] 3. When winding a spiral spring, the winding device can flexibly change the position distance of multiple arc-limiting rollers according to actual preparation requirements during winding, so that when winding the spiral spring, the distance between each two adjacent rings can be flexibly controlled to achieve the winding of spiral springs with different ring sizes, and spiral springs with different elastic coefficients can be prepared.

[0030] 4. When the winding device is winding the scroll spring, it can generate wind airflow in the winding box through the cooperation of the cooling component during winding. The wind airflow will be directly transmitted to the outside of the metal wire through multiple air ducts, so that it can be blown and cooled while winding, thereby reducing the temperature of the winding process and improving the winding stability.

[0031] 5. When the spiral spring is wound, the winding device can realize the simultaneous movement of the two cutting knives through the cooperation of the two electric telescopic rods when the winding is completed, so that the metal wire can be pressurized and cut without changing the position of the metal wire, and the spiral spring can be automatically cut off after the winding is completed, and the winding efficiency is higher.

[0032] To sum up, the present invention can flexibly adjust the inner ring size of the spiral spring and the distance between each two adjacent rings according to actual preparation requirements, thereby realizing the winding of spiral springs of different sizes and shapes, and can prepare spiral springs with different elastic coefficients. The length of the spiral spring can be flexibly controlled during winding, and the metal wire can be automatically cut off after winding, which has stronger adaptability.

[0033] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0035] Figure 1 A schematic structural diagram of an automatic spring winding device for processing a scroll spring proposed by the present invention;

[0036] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0037] Figure 3 This is the process flow chart of the winding device;

[0038] Figure 4 for Figure 1 Schematic diagram of the upper structure of the middle winding box;

[0039] Figure 5 for Figure 4 Schematic diagram of the structure after rotating a certain angle;

[0040] Figure 6 for Figure 5 A schematic diagram of the structure of multiple push boxes and conveyor boxes;

[0041] Figure 7 for Figure 6 A magnified view of the structure of the push box;

[0042] Figure 8 for Figure 6 The enlarged view of the structure of the servo motor and conveying box;

[0043] Fig. 9 for Figure 8 An enlarged view of the structure of the middle fixed cylinder;

[0044] Fig.10 for Fig. 9 A front view of the internal structure of the middle fixed cylinder;

[0045] Fig.11 for Fig.10 The structure enlarged diagram of the middle electromagnetic arc plate and the outer arc plate;

[0046] Fig.12 for Figure 8 A magnified view of the structure of the middle conveyor box;

[0047] Fig.13 for Fig.12 A magnified view of the structure of the middle A part;

[0048] Fig.14 It is a structural schematic diagram of the cooling component in the present invention;

[0049] Fig.15 for Fig.14 Schematic diagram of the internal structure of the stroke box.

[0050] In the figure: 1 base, 2 processing platform, 3 control console, 4 winding box, 5 wire wheel, 6 hydraulic push rod, 7 servo motor, 8 transmission belt, 9 bellows, 10 conveying motor, 11 conveying box, 12 metal wire, 13 push box, 14 conveying rod, 15 arc limiting roller, 16 driving roller, 17 fixing cylinder, 18 outer arc plate, 19 engaging groove, 20 electric telescopic rod, 21 built-in roller, 22 electromagnetic arc plate 1, 23 electromagnetic arc plate 2, 24 connecting column, 25 limit rod, 26 moving plate, 27 positioning pressure plate, 28 limit spring, 29 cutting knife, 30 air guide duct, 31 linkage roller, 32 driving wheel, 33 driven wheel, 34 air guide hole, 35 wind impeller. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Example 1: Reference Figure 1-Figure 3 , an automatic spring winding device for processing a spiral spring, comprising a processing platform 2 arranged on a base 1 and a metal wire 12 for preparing a spiral spring, the metal wire 12 being a raw material for preparing a spiral spring, and the spiral spring can be formed after being wound in circles by the winding device;

[0053] The overall shape of the spiral spring is that it extends from the middle inner ring to the outside in circles, and the whole is a flat spiral.

[0054] The automatic spring winding device also includes:

[0055] The winding box 4 is arranged on the processing platform 2 and is used to provide a processing place for the winding of the metal wire 12. The winding process of the spiral spring is carried out outside the winding box 4. The winding box 4 is used to provide support for the winding of the spiral spring and improve the stability of the spiral spring winding process;

[0056] The feeding unit is arranged on the winding box 4, and is used to realize the stable feeding of the metal wire 12 and the cutting after winding, realize the automatic feeding of the metal wire 12, ensure the uninterrupted process of the spiral spring preparation process, and maintain stability during the feeding process of the metal wire 12 to avoid errors in the winding of the spiral spring.

[0057] The winding unit is arranged on the winding box 4, and is used to realize the winding of the metal wire 12 and the preparation of the spiral spring, realize the winding of the metal wire 12 to realize the preparation of the spiral spring, and control the inner ring size of the spiral spring and the distance between two adjacent rings to realize the preparation of spiral springs of different sizes, so as to wind spiral springs with different elastic coefficients;

[0058] A control console 3 is provided on the processing platform 2. The control console 3 is used to control the opening and closing and operating status of the feeding unit and the winding unit to realize the automated winding preparation of the spiral spring. Through the pre-programmed control of the control console 3, the automated winding of spiral springs of various sizes can be realized, effectively improving the winding processing efficiency of the spiral springs.

[0059] Example 2: Reference Figure 4-Figure 8 as well as Figure 12-13 , the technical solution of this embodiment is different from that of the first embodiment in that: the feeding unit includes a feeding component for feeding the metal wire 12 and a cutting component for cutting the metal wire 12;

[0060] The feeding assembly includes a conveying box 11 fixedly mounted on the winding box 4, a conveying motor 10 is arranged in the base 1, and a wire wheel 5 for placing a metal wire 12 is arranged on the driving end of the conveying motor 10, and a feeding straight groove matching the metal wire 12 is opened in the conveying box 11;

[0061] The metal wires 12 are wound together and sleeved on the outside of the wire wheel 5 before preparation. When the conveying motor 10 is started, the wire wheel 5 is driven to rotate. The rotation of the wire wheel 5 drives the metal wires 12 thereon to rotate and unwind, thereby realizing automatic unwinding of the metal wires 12.

[0062] Before preparing the spiral spring, the end of the metal wire 12 is first pulled out from the wire wheel 5 and snapped into the feeding straight groove in the conveying box 11 to complete the pulling, releasing and preliminary positioning of the metal wire 12.

[0063] In a further embodiment, the cutting assembly includes two electric telescopic rods 20 disposed in the conveying box 11, and a movable plate 26 is fixedly mounted on the driving end of the two electric telescopic rods 20, and a positioning pressure plate 27 cooperating with the metal wire 12 is fixedly mounted on the two movable plates 26 through a plurality of limit springs 28;

[0064] After the metal wire 12 is pulled out, it is located at the midline position of the conveying box 11. At this time, the two electric telescopic rods 20 are started to drive the two moving plates 26 to move. When the two moving plates 26 move, they will drive the two positioning pressure plates 27 to move under the cooperation of multiple limit springs 28. When the two positioning pressure plates 27 move, they will squeeze and fit with the two sides of the metal wire 12, so that the metal wire 12 can be clamped and positioned again;

[0065] The clamping force of the positioning plate 27 can be controlled by the cooperation of the limit spring 28, so that the metal wire 12 can be clamped to prevent it from being displaced or falling during transportation, and a certain moving space is provided for the metal wire 12, so that the metal wire 12 can be stretched and fed smoothly.

[0066] The two movable plates 26 are fixedly mounted with cutting knives 29 for cutting the metal wire 12. When the two positioning pressing plates 27 clamp the metal wire 12, the two movable plates 26 drive the two cutting knives 29 to move, so that the two cutting knives 29 fit the sides of the metal wire 12.

[0067] When the scroll spring is wound, the two electric telescopic rods 20 can be started again to continue to drive the two moving plates 26 to move. At this time, the two positioning pressure plates 27 interact with the metal wire 12 and cannot move (the two positioning pressure plates 27 cannot move and will exert a greater squeezing force on the lower metal wire 12, which can further improve the stability of the metal wire 12 and prevent it from shaking during cutting), and the moving plate 26 will continue to move (while moving, it will squeeze the limit spring 28 to stop the positioning pressure plate 27 from moving) and drive the two cutting knives 29 to move. When the two cutting knives 29 move, they will pressurize and cut the metal wire 12 until the metal wire 12 is cut off, and automatic cutting can be achieved after the scroll spring is wound.

[0068] A length measuring sensor is provided in the conveying box 11, and the length measuring sensor cooperates with the metal wire 12. During the feeding process of the metal wire 12, the length measuring sensor measures the feeding and conveying length of the metal wire 12 to control the number and size of the rings of the spiral spring, so that spiral springs of different lengths can be wound according to actual needs, realizing the automatic fixed-length winding of the spiral spring;

[0069] The length measuring sensor is a device commonly used in the prior art for measuring the moving length of a pipeline. It can measure the moving length of the pipeline that cooperates with it. It is applied in the present invention to perform real-time automatic measurement of the moving length of the metal wire 12. This part is the prior art and will not be elaborated on here.

[0070] Example 3: Reference Figure 4-Figure 11 as well as Figure 14-15 The difference between this embodiment and the second embodiment is that the winding unit includes a winding assembly and a turn adjustment assembly, wherein the winding assembly is used to realize the winding of the metal wire 12, and the turn adjustment assembly is used to adjust the forming turn distance of the spiral spring;

[0071] The winding assembly includes a servo motor 7 disposed on the processing platform 2, a driving roller 16 is disposed on the driving end of the servo motor 7, a fixed cylinder 17 is fixedly mounted on the driving roller 16, and a connecting hole matching the fixed cylinder 17 is provided in the winding box 4, the connecting hole is used for the through-installation of the fixed cylinder 17 and the driving roller 16, and a plurality of engaging grooves 19 matching the metal wire 12 are provided on the fixed cylinder 17;

[0072] When the metal wire 12 is initially stretched and fed, its upper end is engaged with the engagement groove 19 in the fixing tube 17, forming a Figure 8 The state shown, that is, the engagement and positioning of the metal wire 12 is completed, at this time, the servo motor 7 is started to drive the driving roller 16 to rotate, the driving roller 16 rotates and drives the fixed cylinder 17 to rotate, the fixed cylinder 17 rotates and stretches the metal wire 12 to extend and move upward, and drives the metal wire 12 to rotate around the fixed cylinder 17 as the center axis, thereby winding the metal wire 12.

[0073] In a further embodiment, a distance adjustment mechanism for adjusting the inner diameter of the scroll spring is provided in the fixed cylinder 17, and the distance adjustment mechanism includes a built-in roller 21 fixedly installed in the fixed cylinder 17, and a plurality of electromagnetic arc plates 22 are fixedly installed on the built-in roller 21, and a plurality of connecting columns 24 are slidably installed in the fixed cylinder 17, and an outer arc plate 18 and an electromagnetic arc plate 2 23 are fixedly installed at both ends of each connecting column 24, and each electromagnetic arc plate 2 23 is matched with the corresponding electromagnetic arc plate 1 22, and a plurality of limit rods 25 are provided between each outer arc plate 18 and the corresponding electromagnetic arc plate 2 23;

[0074] When the electromagnetic arc plate 1 22 and the electromagnetic arc plate 2 23 are energized at the same time, magnetic force will be generated, and the magnetic poles of the electromagnetic arc plate 1 22 and the electromagnetic arc plate 2 23 are the same. At this time, the electromagnetic arc plate 1 22 will repel the same poles of the electromagnetic arc plate 2 23, and the repulsive force between the two will push the electromagnetic arc plate 23 to move. When the electromagnetic arc plate 23 moves outward, it will drive the outer arc plate 18 to move outward through the connecting column 24;

[0075] When multiple outer arc plates 18 move simultaneously, the relative outer diameter will be enlarged, that is, the diameter of the arc formed by the multiple outer arc plates 18 will increase, and when the magnetic poles of the electromagnetic arc plate 1 22 and the electromagnetic arc plate 2 23 are opposite, suction will be generated between the two, thereby pulling the electromagnetic arc plate 2 23 back and reducing the moving distance of the electromagnetic arc plate 2 23, that is, driving the outer arc plates 18 to move inward through the connecting column 24, so as to reduce the outer diameter of the multiple outer arc plates 18, that is, reduce the outer diameter of the arc formed by the multiple outer arc plates 18;

[0076] The change of the outer arc circle can be achieved by changing the magnetic poles of electromagnetic arc plate 1 22 and electromagnetic arc plate 2 23, and the flexible adjustment of the distance between multiple outer arc plates 18 can be achieved through the cooperation of the distance adjustment mechanism, thereby flexibly changing the overall outer arc size of the multiple outer arc plates 18, that is, spiral springs with different inner circle sizes can be wound according to actual needs.

[0077] In a further embodiment, a cooling component is installed between the driving roller 16 and the winding box 4, and the cooling component includes a bellows 9 fixedly installed in the winding box 4, and a plurality of air guide holes 34 are opened on the bellows 9, a linkage roller 31 is rotatably installed on the bellows 9, a driving wheel 32 is fixedly installed on the driving roller 16, a driven wheel 33 is fixedly installed on the linkage roller 31, and a transmission belt 8 is sleeved between the driving wheel 32 and the driven wheel 33, a wind impeller 35 is fixedly installed on the linkage roller 31, and the wind impeller 35 is located in the bellows 9, and a plurality of air guide ducts 30 for air outlet are provided on the winding box 4;

[0078] When the servo motor 7 is started, the driving roller 16 is driven to rotate. The driving roller 16 is driven to rotate the driving wheel 32 thereon. The driving wheel 32 is driven to rotate the linkage roller 31 in cooperation with the transmission belt 8 and the driven wheel 33, thereby realizing torque transmission.

[0079] Attached to the instruction manual Fig.14 It can be seen that the outer diameter of the driving wheel 32 is much larger than the outer diameter of the driven wheel 33, and the driving wheel 32 and the driven wheel 33 have the same angular velocity, so that the rotation speed of the driven wheel 33 is much larger than the rotation speed of the driving wheel 32, so that when the driving roller 16 rotates slowly to drive the metal wire 12 to rotate for winding, the driven wheel 33 can rotate at a high speed;

[0080] When the driven wheel 33 rotates and drives the linkage roller 31 to rotate, it will drive the wind impeller 35 on the linkage roller 31 to rotate. When the wind impeller 35 rotates, wind airflow will be generated. The wind airflow will be transmitted to the winding box 4 through multiple air guide holes 34, and directly transmitted to the outside of the metal wire 12 through multiple air guide pipes 30, so that it can be blown and cooled while winding, thereby reducing the temperature of the winding process and improving the winding stability.

[0081] In a further embodiment, the loop adjustment assembly includes a plurality of push boxes 13 arranged on the winding box 4, a conveying rod 14 is slidably installed in each push box 13, a plurality of hydraulic push rods 6 are arranged on the winding box 4, and the driving end of each hydraulic push rod 6 is fixedly installed on the corresponding conveying rod 14, and an arc limiting roller 15 matching the metal wire 12 is fixedly installed on each conveying rod 14;

[0082] The hydraulic push rod 6 starts to move the conveying rod 14, and the movement of the conveying rod 14 drives the arc-limiting roller 15 thereon to move, so as to adjust the distance between the arc-limiting roller 15 and the winding center of the volute spring. As the winding process proceeds, the multiple arc-limiting rollers 15 will move outward and away from the center of the circle accordingly for each circle of winding. At this time, the next circle of metal wire 12 will be wound along the inner diameter of the multiple arc-limiting rollers 15 when winding. Repeat the above steps to complete the multiple-circle winding of the metal wire 12.

[0083] According to actual preparation requirements, the distance that the arc-limiting roller 15 moves each time can be changed by the hydraulic push rod 6, so that the size of the ring wound each time can be controlled, and the distance between each adjacent ring in the wound spiral spring can be flexibly changed, thereby preparing spiral springs with different rings, that is, preparing spiral springs with different elastic coefficients.

[0084] The specific working principle of the winding device is as follows: first, the end of the metal wire 12 is pulled out from the wire wheel 5, and it is clamped into the feeding straight groove in the conveying box 11, completing the pulling, releasing and preliminary positioning of the metal wire 12;

[0085] Then, the two electric telescopic rods 20 are started through the control of the console 3 to drive the two movable plates 26 to move. When the two movable plates 26 move, they will drive the two positioning pressure plates 27 to move under the cooperation of the multiple limit springs 28. When the two positioning pressure plates 27 move, they will squeeze and fit with the two sides of the metal wire 12, so that the metal wire 12 can be clamped and positioned again, and then the metal wire 12 is pulled so that its upper end will be engaged with the engaging groove 19 in the fixed tube 17, thereby completing the end positioning of the metal wire 12.

[0086] Then, according to the size requirements of the volute spring actually prepared, the distance adjustment mechanism is started through the control of the console 3, and the distance of the multiple outer arc plates 18 is flexibly adjusted in cooperation with the distance adjustment mechanism until the overall outer arc size of the multiple outer arc plates 18 is the same as the inner diameter of the volute spring to be prepared, and the preparation work before winding the volute spring is completed;

[0087] Then, the servo motor 7 is started through the control of the control console 3 to drive the driving roller 16 to rotate. The rotation of the driving roller 16 will drive the fixed cylinder 17 to rotate. The rotation of the fixed cylinder 17 will stretch the metal wire 12 to make it extend and move upward, and drive the metal wire 12 to rotate around the fixed cylinder 17 as the center axis. The winding of the metal wire 12 can be carried out, and the inner diameter of the wound volute spring is the same as the overall outer arc circle of the multiple outer arc plates 18.

[0088] While winding, the control console 3 is used to start multiple hydraulic push rods 6 to drive the conveying rod 14 to move. The movement of the conveying rod 14 will drive the arc-limiting roller 15 thereon to move, so as to adjust the distance between the arc-limiting roller 15 and the winding center of the volute spring. As the winding process proceeds, multiple arc-limiting rollers 15 will move outward and away from the center of the circle accordingly for each circle of winding. At this time, the next circle of metal wire 12 will be wound against the inner diameter of multiple arc-limiting rollers 15 when winding. Repeat the above steps to complete multiple circles of winding of the metal wire 12.

[0089] After the scroll spring is wound, the two electric telescopic rods 20 are started through the control of the console 3 to drive the two moving plates 26 to move, and the movement of the moving plates 26 drives the two cutting knives 29 to move. When the two cutting knives 29 move, the metal wire 12 is pressurized and cut until the metal wire 12 is cut off, so that automatic cutting can be achieved after the scroll spring is wound.

[0090] After the spiral spring is cut, it can be taken out. At this time, the two electric telescopic rods 20 can be started through the control of the console 3 to drive the two cutting knives 29 to move back, and the subsequent metal wire 12 can be pulled again to make it engage in the engaging groove 19 in the fixed cylinder 17 again, completing the re-positioning of the metal wire 12, and the above steps can be repeated to automatically prepare the next spiral spring.

[0091] The embodiment of the present invention further provides an automatic spring winding method for processing a scroll spring, which is used for the automatic spring winding device for processing a scroll spring, and comprises the following steps:

[0092] S1. When winding the spiral spring, first place the raw metal wire 12 for preparing the spiral spring in the loading unit;

[0093] S2, control the start of the winding assembly according to the inner diameter of the scroll spring and adjust the winding inner diameter;

[0094] S3, realizing stable conveying and feeding of the metal wire 12 through the feeding assembly in the feeding unit;

[0095] S4, during the feeding process of the metal wire 12, the winding assembly is started to realize the winding of the scroll spring, and during the winding process, the coil spacing of the scroll spring is controlled by the coil spacing adjustment assembly;

[0096] S5. After winding is completed, the cutting assembly is started to cut the metal wire 12 and remove the spiral spring.

[0097] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic spring winding device for processing a spiral spring, comprising a processing platform (2) arranged on a base (1) and a metal wire (12) for preparing a spiral spring, characterized in that: Also includes: A winding box (4) is arranged on the processing platform (2) and is used to provide a processing place for the winding of the metal wire (12); A feeding unit is arranged on the winding box (4) and is used to achieve stable feeding of the metal wire (12) and cutting after winding, comprising a feeding assembly for feeding the metal wire (12) and a cutting assembly for cutting the metal wire (12); The winding unit is arranged on the winding box (4) and is used to realize the winding of the metal wire (12) and the preparation of the spiral spring, and comprises a winding assembly and a turn distance adjustment assembly, wherein the winding assembly is used to realize the winding of the metal wire (12), and the turn distance adjustment assembly is used to adjust the forming turn distance of the spiral spring.

2. The automatic spring winding device for spiral spring processing according to claim 1, characterized in that: The processing platform (2) is provided with a control console (3), and the control console (3) is used to control the opening and closing and operating states of the feeding unit and the winding unit, so as to realize the automatic winding preparation of the spiral spring.

3. The automatic spring winding device for spiral spring processing according to claim 1, characterized in that: The feeding assembly comprises a conveying box (11) fixedly mounted on a winding box (4); a conveying motor (10) is arranged in the base (1); a wire wheel (5) for placing a metal wire (12) is arranged on the driving end of the conveying motor (10); and a feeding straight groove matching the metal wire (12) is provided in the conveying box (11).

4. The automatic spring winding device for spiral spring processing according to claim 3, characterized in that: The cutting assembly comprises two electric telescopic rods (20) arranged in a conveying box (11), a moving plate (26) being fixedly mounted on the driving ends of the two electric telescopic rods (20), a positioning pressing plate (27) matching with the metal wire (12) being fixedly mounted on the two moving plates (26) via a plurality of limit springs (28), and a cutting knife (29) for cutting the metal wire (12) being fixedly mounted on the two moving plates (26); A length measuring sensor is arranged in the conveying box (11), and the length measuring sensor cooperates with the metal wire (12).

5. The automatic spring winding device for spiral spring processing according to claim 1, characterized in that: The winding assembly comprises a servo motor (7) arranged on a processing platform (2); a driving roller (16) is arranged on the driving end of the servo motor (7); a cooling assembly is installed between the driving roller (16) and the winding box (4); a fixing cylinder (17) is fixedly installed on the driving roller (16); a connecting hole matching the fixing cylinder (17) is provided in the winding box (4); and a spacing adjustment mechanism for adjusting the inner diameter of the scroll spring is provided in the fixing cylinder (17).

6. The automatic spring winding device for spiral spring processing according to claim 5, characterized in that: The distance adjustment mechanism comprises an inner roller (21) fixedly mounted in a fixed cylinder (17), a plurality of electromagnetic arc plates (22) being fixedly mounted on the inner roller (21), a plurality of connecting columns (24) being slidably mounted in the fixed cylinder (17), an outer arc plate (18) and an electromagnetic arc plate (23) being fixedly mounted at both ends of each connecting column (24), and each electromagnetic arc plate (23) being matched with a corresponding electromagnetic arc plate (22), a plurality of engaging grooves (19) matching with the metal wire (12) being provided on the fixed cylinder (17), and a plurality of limiting rods (25) being arranged between each outer arc plate (18) and the corresponding electromagnetic arc plate (23).

7. The automatic spring winding device for spiral spring processing according to claim 5, characterized in that: The cooling component comprises a bellows (9) fixedly mounted in a winding box (4), and a plurality of air guide holes (34) are provided on the bellows (9), a linkage roller (31) is rotatably mounted on the bellows (9), a driving wheel (32) is fixedly mounted on the driving roller (16), a driven wheel (33) is fixedly mounted on the linkage roller (31), and a transmission belt (8) is sleeved between the driving wheel (32) and the driven wheel (33), a fan wheel (35) is fixedly mounted on the linkage roller (31), and the fan wheel (35) is located in the bellows (9), and a plurality of air guide ducts (30) for air outlet are provided on the winding box (4).

8. The automatic spring winding device for spiral spring processing according to claim 1, characterized in that: The loop spacing adjustment component includes a plurality of push boxes (13) arranged on a winding box (4), each of which has a conveying rod (14) slidably installed in the push box (13), a plurality of hydraulic push rods (6) arranged on the winding box (4), and a driving end of each hydraulic push rod (6) is fixedly installed on a corresponding conveying rod (14), and each of the conveying rods (14) is fixedly installed with an arc limiting roller (15) that matches the metal wire (12).

9. An automatic spring winding method for processing a scroll spring, used for the automatic spring winding device for processing a scroll spring as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. When winding a spiral spring, firstly place a metal wire material (12) for preparing the spiral spring in a loading unit; S2, control the start of the winding assembly according to the inner diameter of the scroll spring and adjust the winding inner diameter; S3, realizing stable conveying and feeding of the metal wire (12) through the feeding assembly in the feeding unit; S4, during the feeding process of the metal wire (12), the winding assembly is started to realize the winding of the spiral spring, and during the winding process, the coil spacing of the spiral spring is controlled by the coil spacing adjustment assembly; S5. After winding is completed, the cutting assembly is started to cut the metal wire (12) and remove the spiral spring.

10. The automatic spring winding method for spiral spring processing according to claim 9, characterized in that: During the feeding process of the metal wire (12), the length measuring sensor measures the feeding and conveying length of the metal wire (12), thereby controlling the number and size of the rings of the spiral spring and achieving fixed-length winding of the spiral spring.

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