CN109351894B

CN109351894B - Spring correcting device

Info

Publication number: CN109351894B
Application number: CN201811369750.0A
Authority: CN
Inventors: 唐彬
Original assignee: Zhuhai Zhongxin Air Conditioning Fittings Co ltd
Current assignee: Zhuhai Zhongxin air conditioning fittings Co.,Ltd.
Priority date: 2018-11-17
Filing date: 2018-11-17
Publication date: 2020-08-07
Anticipated expiration: 2038-11-17
Also published as: CN109351894A

Abstract

The invention relates to a spring correcting device which is used for processing a spring structure, wherein the spring structure comprises a spring body, and a lower positioning sheet and an upper positioning sheet which are arranged at two ends of the spring body; whether axial and circumferential stress of the spring is balanced is judged in a detection mode, the influence position with corresponding error can be obtained by judging the motion track of the detection feed needle, the influence position is heated, the hardness is reduced in the temperature rising process, then the deformation amount of the spring driven by the axial adjusting piece is different from that of other positions, the shape of the spring is changed through the solid state in the metal cooling process, and therefore the elastic force of the spring body tends to be vertical, and the acting force of the spring body tends to be vertical.

Description

Spring correcting device

Technical Field

The present invention relates to a spring correction apparatus, and more particularly, to a spring correction device.

Background

A spring is a mechanical part that works by elasticity. The part made of elastic material deforms under the action of external force and restores to the original shape after the external force is removed. Also used as a "spring". Typically made of spring steel. The types of springs are complex and various, and mainly include spiral springs, volute springs, plate springs, special springs and the like according to the shapes.

After the recent industrial emergence, novel springs such as a gas spring, a rubber spring, a volute spiral spring, a die spring, a stainless steel spring, an air spring, a memory alloy spring and the like have appeared in addition to a disc spring. And the spring detection needs attention: 1. the supporting ring can adopt cold and hot methods according to the requirements of products. The spring is not allowed to be heated to sparkle or whiten by adopting a heat combining mode, and the temperature of the silicon manganese steel is not higher than 850 ℃. The backup ring and active ring should be in active contact with a gap that does not exceed 10% of the nominal gap between the rings. 2. The characteristics of the multi-strand spring can be determined by adjusting the lead, and the cable distance can be adjusted as necessary during winding. The twisting pitch can be 3 to 14 times the diameter of the steel wire, but is preferably 8 to 13 times. The spring force is also closely related to the free height, the parallel end ring, the outer diameter, the performance of the steel wire and the like, and can be changed by adjusting one or more of the free height, the parallel end ring, the outer diameter and the performance of the steel wire. 3. Springs without spider and springs with too thin wire diameter should not weld the spring heads, but the end cables should not be loose significantly, and deburred. For the multi-strand spring whose head is to be welded, the length of the welding part bit should be less than 3 times of the cable diameter (the longest length is not more than 10 mm). The heating length should be less than one turn, the welding should be polished smoothly after welding, and the welding part should be annealed at local low temperature during gas welding. 4. The surface treatment of the spring can be carried out by phosphorization treatment or other treatments. When the plating layer is zinc and cadmium, the electroplating is followed by dehydrogenation treatment, and after dehydrogenation, 3% (not less than 3 pieces) of the plating layer is taken out for re-test and setting treatment, and no fracture is required in the re-test. The spring is used for removing dirt, salt marks and oxide skin on the surface by adopting a sand blowing or gasoline cleaning method, but cannot be used for pickling. 5. The important spring pressing time is 24 hours, and the common spring is 6 hours or continuously compressed for 3-5 times, and the compression time is kept for 3-5 seconds each time. When the spring is pressed, the clearance between the spring and the mandrel is preferably 10% of the diameter of the mandrel, the operation is difficult when the clearance is too small, and the bending deformation of the spring is easy to occur when the clearance is too large. If one of the springs breaks during compression, the rest should be reprocessed.

The spring with a large volume has a problem at present, but the reliability of the spring needs to depend on materials and has a large influence on the structure of the spring due to high production cost, and generally speaking, the following two problems exist: 1. the elastic force of each coil in the same spring is not equal, which is called axial error, and this error will cause metal elastic fatigue more easily in unit position, and affect the life of the spring. 2. In addition to the axial force generated by the spring when it is positively compressed, a radial component, referred to as the circumferential error, is generated, and this component represents the bending of the spring (generally invisible to the naked eye) during compression, which otherwise exerts other forces on the force-receiving member during repeated use.

The spring as a key component has irreversible influence on equipment if elastic fatigue or error acting force is generated, so that the problem of ensuring the spring quality is a necessary problem.

Disclosure of Invention

Accordingly, the present invention is directed to a spring correction device to solve the above problems.

In order to solve the technical problems, the technical scheme of the invention is as follows: a spring correction device is used for processing a spring structure, and the spring structure comprises a spring body, and a lower positioning sheet and an upper positioning sheet which are arranged at two ends of the spring body; comprises a base and a controller;

the base is provided with a fixing mechanism, the fixing mechanism is used for fixing the spring structure, and the fixing mechanism is fixed with the spring structure through the lower positioning sheet;

the detection mechanism comprises a detection driving piece, a detection retaining piece, a detection feedback structure and a detection feed needle, the detection driving piece is used for driving the detection feedback structure to move in the vertical direction, the detection feed needle is arranged on the detection feedback structure, a feedback cavity is formed in the detection feedback structure, the lower end of the detection feed needle forms a free end outside through a abdicating hole arranged on the feedback cavity, the upper end of the detection feed needle is suspended in the feedback cavity, and the detection feed needle is movably connected with the feedback cavity through the abdicating hole; the detection retaining piece is arranged on the detection feedback structure, a limiting bulge is arranged on the detection feed needle, the detection retaining piece is used for pressing or loosening the detection feed needle on the abdicating hole, the detection retaining piece is connected to the detection feedback structure, when the detection feedback structure moves downwards, one end of the detection feed needle is in contact with the upper positioning sheet of the spring body, when the detection retaining piece presses the detection feed needle, the detection feed needle applies extrusion force to the spring body under the driving of the detection feedback structure, and when the detection retaining piece loosens the detection feed needle, the detection feed needle is separated from the spring body and retracts to the feedback cavity under the action of elastic force; the detection part is arranged in the feedback cavity and used for detecting the upward movement track of the detection feed needle under the action of elastic force so as to generate spring state information, and the spring state information comprises axial displacement information and radial deviation information;

the limiting mechanism is arranged on the base and comprises a limiting driving part and a limiting clamping plate, and the limiting driving part is used for driving the limiting clamping plate to move so that the limiting clamping plate enters a gap between the spring coils in the spring body;

the base is provided with an actuating mechanism, the actuating mechanism comprises a heating part, a circumferential adjusting part and an axial adjusting part, the heating part is used for heating the spring body at any position of the spring body, and the circumferential adjusting part is arranged on the fixing mechanism and used for rotating the lower positioning sheet along the circumferential direction of the spring body; the axial adjusting part is arranged on the circumferential adjusting part and is used for driving the lower positioning sheet to move along the axial direction of the spring body;

the controller comprises a measuring module, a circumferential correction module and an axial correction module, wherein the measuring module generates a spring model information group by acquiring spring state information acquired by a spring body under the restriction states of different positions of a restriction mechanism, compares a preset ideal model information group with the spring model information group, and acquires axial correction information and circumferential correction information according to deviation; the axial correction module controls the heating part and the axial adjusting part to work according to the axial correction information so as to reduce the axial deviation between a new spring model information set and an ideal model information set.

Further, the fixing mechanism is provided with a first cooling compensator, the first cooling compensator is in contact with the lower positioning plate, cooling capacity is transmitted to the spring body from the lower positioning plate when the first cooling compensator works, and the first cooling compensator works when the heating part works.

Furthermore, a second cooling compensator is arranged on the limiting mechanism and is in contact with the limiting clamping plate, cooling capacity is transmitted to the spring body from the limiting clamping plate when the second cooling compensator works, and the second cooling compensator works when the heating part works.

Further, the heating part comprises a heating plate and a heating manipulator for driving the heating plate to move, and the heating part transfers heat to a target position on the spring body in a contact mode.

Further, a thermal feedback device is arranged on the heating plate and used for detecting the temperature of the target position on the spring body, and when the temperature of the target position reaches a preset temperature, the corresponding axial adjusting part or the corresponding circumferential adjusting part is controlled to work.

Further, the detection holder comprises a holding pressure rod, a holding driving part and a holding damping part, the holding driving part is used for driving the holding pressure rod to move downwards to press the detection feed needle, and the holding damping part is used for accumulating damping potential energy when the holding pressure rod moves downwards, so that the holding damping part enables the holding pressure rod to be upwards recovered under the driving of the damping potential energy when the holding driving part stops working.

Furthermore, an identification point is arranged at the top of the upper end of the detection feed needle, an image collector is arranged on the detection part and used for collecting the motion track of the identification point in the feedback cavity so as to generate the state information of the spring.

Further, the detection part comprises a plurality of infrared detection units, and the infrared detection units are used for detecting the motion trail of the top of the upper end of the detection feed needle to generate the spring state information.

Further, still include the cooling portion on the base, the cooling portion includes the cooling plate and is used for driving the cooling manipulator of cooling plate removal, the cooling plate is with the mode of contact with cold volume leading-in the spring body.

The technical effects of the invention are mainly reflected in the following aspects: whether axial and circumferential stress of the spring is balanced is judged in a detection mode, the influence position with corresponding error can be obtained by judging the motion track of the detection feed needle, the influence position is heated, the hardness is reduced in the temperature rising process, then the deformation amount of the spring driven by the axial adjusting piece is different from that of other positions, the shape of the spring is changed through the solid state in the metal cooling process, and therefore the elastic force of the spring body tends to be vertical, and the acting force of the spring body tends to be vertical.

Drawings

FIG. 1: the invention discloses a structural schematic diagram of a spring correcting device in a front view direction;

FIG. 2: the invention discloses a structural schematic diagram of a spring correcting device in the axial direction;

FIG. 3: FIG. 2 is an enlarged view of section A of the spring correction device of the present invention;

FIG. 4: the control system of the invention constructs the topological diagram;

FIG. 5: and (4) a schematic diagram of the internal structure of the detection mechanism.

Reference numerals: 1. a base; 100. a fixing mechanism; 110. a first cooling compensator; 200. a detection mechanism; 210. detecting a driving piece; 220. detecting the holder; 221. a holding drive section; 222. a holding pressure lever; 223. a holding damper section; 230. detecting a feedback structure; 231. a feedback chamber; 240. detecting a feed needle; 241. a limiting bulge; 250. a detection unit; 300. a limiting mechanism; 310. a limit drive section; 320. a restraining splint; 330. a second cooling compensator; 400. an actuator; 410. a heating section; 411. heating plates; 412. heating the manipulator; 420. a circumferential adjustment portion; 430. an axial adjustment portion; 440. a cooling section; 441. a cooling plate; 442. cooling the manipulator; 2. a controller; 21. a measuring and calculating module; 22. a circumferential correction module; 23. an axial correction module; 3. a spring structure; 31. an upper positioning sheet; 32. a lower locating plate; 30. a spring body.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

Referring to fig. 1, the overall structure is described in detail, and a spring correcting device is used for processing a spring structure 3, wherein the spring structure 3 comprises a spring body 30, and a lower positioning plate 32 and an upper positioning plate 31 which are arranged at two ends of the spring body 30; firstly, the invention is applied to a relatively large-sized spring structure 3, the larger the spring volume is, the higher the manufacturing cost is, and the maintenance cost is correspondingly increased, in particular to the spring structure 3 in large-sized high-precision equipment, and positioning sheets at two ends of the spring are provided with butt joint structures and are used for realizing the fixing effect by being matched with corresponding parts, namely, the spring structure 3 generates elastic force by the opposite movement of an upper positioning sheet 31 and a lower positioning sheet 32 when working, and the whole device comprises a base 1 and a controller 2; the controller 2 is used to control all other components on the base 1.

A fixing mechanism 100 is arranged on the base 1, the fixing mechanism 100 is used for fixing the spring structure 3, and the fixing mechanism 100 is fixed with the spring structure 3 through the lower positioning sheet 32; the principle of the fixing structure is simple, and the lower positioning sheet 32 of the spring structure 3 is fixed on the whole base 1 through a threaded connection or a clamping fixing mode. In order to realize the effect of circumferential correction, the fixing mechanism 100 is further provided with a circumferential adjusting part 420, and the circumferential adjusting part 420 drives the rotating shaft on the fixing mechanism 100 to rotate through the motor so as to rotate the lower end of the spring; the fixing mechanism 100 is further provided with an axial adjusting portion 430, the axial adjusting portion 430 drives the fixing shaft on the fixing mechanism 100 to move downwards through the stroke device so as to compress or stretch the whole spring structure 3, the principle of the mechanical structure is simple and is not described in detail, and the detailed control mode and the functions and effects of the structure are described in detail in the following supplementary description.

The detection mechanism 200 is disposed on the base 1, the detection mechanism 200 includes a detection driving member 210, a detection holding member 220, a detection feedback structure 230 and a detection feed needle 240, the detection driving member 210 is configured to drive the detection feedback structure 230 to move in a vertical direction, the detection feed needle 240 is disposed on the detection feedback structure 230, a feedback cavity 231 is formed in the detection feedback structure 230, a lower end of the detection feed needle 240 forms a free end outside through a yielding hole disposed on the feedback cavity 231, an upper end of the detection feed needle 240 is suspended in the feedback cavity 231, and the detection feed needle 240 and the feedback cavity 231 are movably connected through the yielding hole; the detecting and retaining member 220 is disposed on the detecting and feedback structure 230, the detecting and feeding needle 240 is provided with a limiting protrusion 241, the detecting and retaining member 220 is used for pressing or releasing the detecting and feeding needle 240 on the abdicating hole, the detecting and retaining member 220 is connected to the detecting and feedback structure 230, when the detecting and feedback structure 230 moves downward, one end of the detecting and feeding needle 240 contacts with the upper positioning plate 31 of the spring body 30, when the detecting and retaining member 220 presses the detecting and feeding needle 240, the detecting and feeding needle 240 applies a pressing force to the spring body 30 under the driving of the detecting and feedback structure 230, and when the detecting and retaining member 220 releases the detecting and feeding needle 240, the detecting and feeding needle 240 is separated from the spring body 30 and retracts to the feedback cavity 231 under the elastic force; a detection part 250 is arranged in the feedback cavity 231, and the detection part 250 is used for detecting the upward movement track of the detection feed needle 240 under the action of elastic force to generate spring state information, wherein the spring state information comprises axial displacement information and radial deviation information; the detection mechanism 200 is a very important technical content of the present invention, and aims to detect parameters of a spring, it should be noted that, when a scratch, a welding portion, metal fatigue, or the like occurs in the spring, an elastic deformation amount of the spring is different from an expected deformation amount, specifically, components in other directions than an axial force may occur, or an elastic force provided by each coil is different, and in a use process, the two problems not only affect the whole device, but also reduce the service life of the spring due to uneven stress on the spring itself, which is a very fatal problem, and the detection mechanism 200 is provided to detect whether the stress of the spring is balanced, and firstly, the detection driving member 210 included in the detection mechanism 200 presses the spring by driving the whole detection feedback structure 230 to move downward, and it should be noted that, the force applied during the pressing process is as follows, as shown in fig. 2, the detecting holder 220 is used to provide a downward holding force to the detecting feeder 240, that is, if the detecting feeder 240 is not engaged with the detecting holder 220, even if the detecting driver 210 moves downward, the detecting feeder 240 retracts under the action of the spring force, and if the detecting holder 220 is provided, the detecting feeder 240 compresses the spring to accumulate the spring force, for convenience of description, we define the compression amount of the first compression spring as X1, and the obtained ideal spring force vector is F1, and F1 is vertically disposed upward, so that according to the weight of the detecting feeder 240, the acceleration a1 of the detecting feeder 240 when being released, that is, the position of the upper end of the detecting feeder 240 in the feedback cavity 231 under the action of the spring force, and conversely, if the position of the upper end of the detecting feeder 240 in the feedback cavity 231 is actually detected, it is possible to determine whether there is an abnormal position on the spring body 30, and if it is higher or lower than the specified position, it is determined that there is an abnormal metal elastic deformation in the axial direction of the coil used in the test, and if it is not in the vertical direction, it is determined that the coil is unevenly stressed and a component in the horizontal direction is present, so it is possible to determine whether the coil is in a normal state by generating the spring state information. The detecting holder 220 includes a holding pressing rod 222, a holding driving part 221, and a holding damping part 223, the holding driving part 221 is configured to drive the holding pressing rod 222 to move downward to press the detecting feed needle 240, and the holding damping part 223 is configured to accumulate damping potential energy when the holding pressing rod 222 moves downward, so that the holding damping part 223 drives the holding pressing rod 222 to recover upward under the driving of the damping potential energy when the holding driving part 221 stops working. The damping maintaining part 223 can be achieved by a telescopic cylinder, a spring or other damping components, so as to instantly recover the pressing force applied on the detection feed needle 240, ensure that the detection feed needle 240 only moves under the action of elastic force during movement, and improve the detection effect.

In one embodiment, the top of the upper end of the detection feed needle 240 is provided with an identification point, and the detection part 250 is provided with an image collector for collecting a movement track of the identification point in the feedback cavity 231 to generate the spring state information. For example, bright color points can be set on identification points on the top, the bright points are captured by pushing an image analysis algorithm of video acquisition, and then a motion trajectory is formed through modeling, it should be noted that two image collectors need to be set, one is a top view angle and one is a side view angle, so that the established motion trajectory can be presented in a three-dimensional space to reflect the elastic force condition of the spring body 30, and thus corresponding spring state information is output. According to the relative position of the identification point in the image, the maximum height which can be reached by the identification point under the action of the elastic force can be judged, so that the magnitude of the elastic force is judged, and the axial deviation information is generated.

In another embodiment, the detecting part 250 includes a plurality of infrared detecting units for detecting a movement trace of the top of the upper end of the detection feed needle 240 to generate the spring state information. The principle is similar to the principle of image acquisition, and the motion trail is judged in an infrared detection array mode, so that the method is simple and convenient, and is not detailed here.

The base 1 is provided with a limiting mechanism 300, the limiting mechanism 300 comprises a limiting driving part 310 and a limiting clamping plate 320, the limiting driving part 310 is used for driving the limiting clamping plate 320 to move so as to enable the limiting clamping plate 320 to enter a gap between coils in the spring body 30; the purpose of the restricting driving part 310 in the restricting mechanism 300 is to cooperate with the detecting mechanism 200 to detect different coils so that the coils below the restricting clamping plate 320 are not subjected to the action of the pressing force when the detecting mechanism 200 is pressed, for example, if the uppermost first coil is detected at this time, the restricting clamping plate 320 can only be driven by the restricting driving part 310 to be fixed between the first coil and the second coil, and when the detecting mechanism 200 is operated, only the first coil is compressed to achieve a detecting effect, and the next detection can be restricted between the second coil and the third coil, so that only the first coil and the second coil are compressed during the detection, and thus, the coil with deformation or abnormality can be detected and repaired.

An actuator 400 is arranged on the base 1, the actuator 400 includes a heating portion 410, a circumferential adjusting portion 420 and an axial adjusting portion 430, the heating portion 410 is used for heating the spring body 30 at any position of the spring body 30, and the circumferential adjusting portion 420 is arranged on the fixing mechanism 100 and is used for rotating the lower positioning piece 32 along the axial direction of the spring body 30; the axial adjusting portion 430 is disposed on the circumferential adjusting portion 430, and is used for driving the lower positioning piece 32 to move along the axial direction of the spring body 30; the heating part 410 includes a heating plate 411 and a heating robot 412 for moving the heating plate 411, and the heating part 410 transfers heat to a target position on the spring body 30 in a contact manner. The principle of the circumferential adjustment part 420 and the axial adjustment part 430 has been described, and the heating part 410 mainly aims to heat a specific position of the spring body 30 (which is determined by the detection mechanism 200 and described in detail below), and the temperature of the heated position rises, and then the spring body 30 is compressed or rotated by the adjustment part to restore the spring to an ideal state, and the principle is that the deformation degree of the spring at different temperatures is different, so that the deformation amount of the target position is larger at a high temperature, and the deformation amount of other positions is normal, so that the shape of the metal at the position can be adjusted. As shown, the heating part 410 is driven by a robot, so that any position on the spring body 30 can be precisely heated. Besides the direct heating mode, the heating mode can also be a heat radiation or light beam heating mode without limitation. The heating plate 411 is provided with a thermal feedback device, the thermal feedback device is used for detecting the temperature of a target position on the spring body 30, and when the temperature of the target position reaches a preset temperature, the corresponding axial adjusting part 430 or the corresponding circumferential adjusting part 420 is controlled to work. The preset temperature of the thermal feedback device can be set according to the material of the corresponding metal, and once the temperature reaches the preset temperature, the corresponding equipment can work, so that the thermal feedback device is simple and convenient.

In order to ensure that the amount of heat locally received during heating is large, the fixing mechanism may be provided with a first cooling compensator 110, the first cooling compensator 110 is in contact with the lower positioning plate 32, the first cooling compensator 110 transmits cooling energy from the lower positioning plate 32 to the spring body 30 when operating, and the first cooling compensator 110 operates when the heating portion 410 operates. The limiting mechanism 300 is provided with a second cooling compensator 330, the second cooling compensator 330 is in contact with the limiting clamp 320, the second cooling compensator 330 transmits cooling energy from the limiting clamp 320 to the spring body 30 when operating, and the second cooling compensator 330 operates when the heating portion 410 operates. The base 1 further comprises a cooling portion 440, the cooling portion 440 comprises a cooling plate 441 and a cooling manipulator 442 for driving the cooling plate 441 to move, and the cooling plate 441 guides cold energy into the spring body 30 in a contact manner. Therefore, the heat can be locked at the corresponding heating position, and the heating effect is improved.

The controller comprises a measuring module 21, a circumferential correction module 22 and an axial correction module 23, wherein the measuring module 21 generates a spring model information group by acquiring spring state information acquired by a spring body 30 in a limiting state of different positions of a limiting mechanism 300, compares a preset ideal model information group with the spring model information group, and obtains axial correction information and circumferential correction information according to deviation, and the circumferential correction module 22 controls the heating part 410 and the circumferential adjusting part 420 to work according to the circumferential correction information so as to reduce circumferential deviation between a new spring model information group and the ideal model information group; the axial correction module 23 controls the heating part 410 and the axial adjustment part 430 to work according to the axial correction information, so that the axial deviation between the new spring model information set and the ideal model information set is reduced. Firstly, setting a measuring and calculating module 21, wherein the measuring and calculating module 21 is used for acquiring spring state information detected by a detection mechanism 200 under gaps of different spring coils, then generating corresponding correction information in a comparison mode, and correcting the spring structure 3 through the correction information, and the measuring and calculating strategy comprises a limiting step, a maintaining step, an extruding step, a releasing step and an outputting step; the restricting step includes preventing the coils under the restricting clip 320 from being affected by the pressure by restricting the clip 320 from entering the gap between the coils in the spring body 30; the holding step includes pressing the detection feed pin 240 on the abdicating hole by the detection holder 220; the pressing step includes pressing the detection feed pin 240 against the spring structure 3 by the detection driving member 210; the releasing step includes releasing the detection feed pin 240 through the detection holder 220 at the offset hole, so that the detection feed pin 240 bounces under the elastic force of the spring structure 3 and leaves a motion track in the feedback cavity 231; the outputting step comprises generating corresponding spring state information according to the motion trail. The circumferential correction module 22 comprises a circumferential correction strategy comprising an acquisition step, a heating step and a correction step; the acquiring step comprises acquiring position information and correction amount information according to the circumferential correction information; the heating step includes determining a position corresponding to the position information on the spring body 30, and heating the corresponding position by a heating part 410; the correcting step includes driving the circumferential adjusting part 420 to move according to the correction amount information, where the correction amount information reflects the rotation direction and rotation angle of the axial adjusting part 430. The axial correction module 23 comprises an axial correction strategy, and the axial correction strategy comprises an acquisition step, a heating step and a correction step; the acquiring step comprises acquiring position information and correction amount information according to the axial correction information; the heating step includes determining a position corresponding to the position information on the spring body 30, and heating the corresponding position by a heating part 410; the correcting step includes driving the axial adjusting portion 430 to move according to the correction amount information, where the correction amount information reflects the moving direction and the moving distance of the axial adjusting portion 430. The following is illustrated with two examples: 1. the first detection corresponds to the first section of spring coil, the axial offset is detected to be-1 unit (2 units are used as a reasonable range), the second detection corresponds to the first section of spring coil and the second section of spring coil, the axial offset is detected to be +4 units, the subsequent detected axial offset is normal, namely the elastic force of the spring coil 2 is preferably reduced, the spring coil 2 is heated through the heating part 410, the spring coil 2 is stretched while heating is carried out, the stretched unit is in direct proportion to the axial offset of 5 units, and whether the normal condition is detected and checked after the heating is finished. 2. The first time the circumferential offset corresponding to the first segment of the coil is detected to be +5 units in the 30 degree direction, and the other coils are normal, then only the 30 degree position of the first segment of the coil needs to be heated, then the circumferential direction adjustment part 420 is rotated in the forward direction, and then the correction is completed.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A spring correction device is used for processing a spring structure, and the spring structure comprises a spring body, and a lower positioning sheet and an upper positioning sheet which are arranged at two ends of the spring body; the device is characterized by comprising a base and a controller;

2. The spring correcting apparatus of claim 1, wherein the fixing mechanism is provided with a first cooling compensator, the first cooling compensator is in contact with the lower spacer, the first cooling compensator operates to transfer cooling energy from the lower spacer to the spring body, and the first cooling compensator operates when the heating portion operates.

3. The spring correcting apparatus according to claim 2, wherein a second cooling compensator is provided on the regulating mechanism, the second cooling compensator being in contact with the regulating jaw, the second cooling compensator operating to transmit cooling energy from the regulating jaw to the spring body, the second cooling compensator operating when the heating portion operates.

4. The spring correction device according to claim 1, wherein the heating part includes a heating plate and a heating robot for moving the heating plate, and the heating part contactingly transfers heat to a target position on the spring body.

5. The spring correcting device of claim 4, wherein a thermal feedback device is disposed on the heating plate, the thermal feedback device is used for detecting the temperature of the target position on the spring body, and when the temperature of the target position reaches a preset temperature, the corresponding axial adjustment part or circumferential adjustment part is controlled to work.

6. The spring correcting device of claim 1, wherein the detecting holder includes a holding pressing rod, a holding driving part for moving the holding pressing rod downward to press the detecting feed pin, and a holding damping part for accumulating damping potential energy when the holding pressing rod moves downward, so that the holding damping part retracts the holding pressing rod upward by the damping potential energy when the holding driving part stops working.

7. The spring correction device as claimed in claim 1, wherein an identification point is disposed at a top of an upper end of the detection feed needle, and the detection portion is provided with an image collector for collecting a movement trace of the identification point in the feedback chamber to generate the spring state information.

8. The spring correction device according to claim 1, wherein the detection part includes a plurality of infrared detection units for detecting a movement trace of the top of the upper end of the detection feed pin to generate the spring state information.

9. The spring correction device of claim 1, further comprising a cooling portion on the base, wherein the cooling portion comprises a cooling plate and a cooling robot for moving the cooling plate, and the cooling plate guides the cooling energy into the spring body in a contact manner.