阅读说明：本技术 一种弹簧垫圈用去应力回火装置及其使用方法 (Destressing tempering device for spring washer and using method thereof ) 是由 赵关祥 俞世勇 严柏赢 李水文 唐水陆 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种弹簧垫圈用去应力回火装置及其使用方法,包括丝杆和伸缩组件,所述丝杆的左右两端均安装有轴承支座,且轴承支座的下方连接有升降组件,所述升降组件的下方安装有底座,且底座的上表面中间位置设置有回火炉设备,所述回火炉设备的内部下方安装有网带,且网带的上表面连接有托架,所述丝杆的外侧连接有滚珠座,且滚珠座的下方安装有支杆,所述伸缩组件均匀安装于支杆的下方,且伸缩组件的下方连接有夹持组件,所述轴承支座的内部设置有转轴,且转轴的右端连接有伺服电机。本发明设置整个装置可以同时对多个弹簧垫圈进行操作整理,效率较高,并且在有效保证回火操作效果的同时,进一步提升了整个设备的工作效率,实用性较强。(The invention discloses a destressing tempering device for a spring washer and a using method of the destressing tempering device, and the destressing tempering device comprises a lead screw and a telescopic assembly, wherein bearing supports are installed at the left end and the right end of the lead screw, a lifting assembly is connected below the bearing supports, a base is installed below the lifting assembly, tempering furnace equipment is arranged in the middle of the upper surface of the base, a mesh belt is installed below the interior of the tempering furnace equipment, the upper surface of the mesh belt is connected with a bracket, a ball seat is connected to the outer side of the lead screw, supporting rods are installed below the ball seat, the telescopic assembly is uniformly installed below the supporting rods, a clamping assembly is connected below the telescopic assembly, a rotating shaft is arranged inside the bearing supports, and the right end of the rotating shaft is connected with a servo. The whole device can operate and arrange a plurality of spring washers at the same time, the efficiency is high, the tempering operation effect is effectively guaranteed, the working efficiency of the whole device is further improved, and the practicability is high.)

1. The utility model provides a destressing tempering device for spring washer, includes lead screw (1) and telescopic component (10), its characterized in that: the left end and the right end of the screw rod (1) are both provided with bearing supports (2), a lifting component (3) is connected below the bearing supports (2), a base (4) is arranged below the lifting component (3), a tempering furnace device (5) is arranged in the middle of the upper surface of the base (4), a mesh belt (6) is arranged below the inner part of the tempering furnace device (5), the upper surface of the mesh belt (6) is connected with a bracket (7), the outer side of the screw rod (1) is connected with a ball seat (8), a support rod (9) is arranged below the ball seat (8), the telescopic assemblies (10) are uniformly arranged below the support rod (9), and the lower part of the telescopic component (10) is connected with a clamping component (11), a rotating shaft (12) is arranged in the bearing support (2), and the right end of the rotating shaft (12) is connected with a servo motor (13).

2. The de-stressing and tempering device for spring washers according to claim 1, wherein: lifting unit (3) include connecting plate (301), fixing bolt (302), piston rod (303), pneumatic cylinder (304) and hydraulic pump (305), and all install fixing bolt (302) at the left and right sides both ends of connecting plate (301), the below of connecting plate (301) is fixed with piston rod (303), and the below outside of piston rod (303) is connected with pneumatic cylinder (304) to hydraulic pump (305) are installed to the below of pneumatic cylinder (304).

3. The de-stressing and tempering device for spring washers according to claim 2, wherein: a communication structure is formed between the hydraulic pump (305) and the hydraulic cylinder (304), a telescopic structure is formed between the hydraulic cylinder (304) and the piston rod (303), one end of the piston rod (303) penetrates through the hydraulic cylinder (304), and meanwhile the other end of the piston rod (303) forms a detachable structure with the bearing support (2) through a connecting plate (301) and a fixing bolt (302).

4. The de-stressing and tempering device for spring washers according to claim 1, wherein: be fixed with diaphragm (14) between the inboard of branch (9), and install air pump (15) above the intermediate position of diaphragm (14), be connected with trachea (16) between air pump (15) and flexible subassembly (10) adjacent, and constitute the intercommunication structure between air pump (15) through trachea (16) and flexible subassembly (10) to the quantity of trachea (16) sets up to 5, and the length homoenergetic of trachea (16) equals simultaneously.

5. The de-stressing and tempering device for spring washers according to claim 1, wherein: the telescopic assembly (10) comprises a cylinder (1001), a telescopic rod (1002), a support (1003) and a fixing ring (1004), the telescopic rod (1002) is connected to the lower portion of the inside of the cylinder (1001), the supports (1003) are fixed to the left side and the right side of the lower surface of the cylinder (1001), and the fixing ring (1004) is installed at the lower end of the support (1003).

6. The de-stressing tempering device for spring washers according to claim 5, characterized in that: one end of the telescopic rod (1002) penetrates through the inside of the cylinder (1001), the cylinder (1001) and the telescopic rod (1002) are matched with each other to form a telescopic structure, and the vertical center line of the telescopic rod (1002) and the vertical center line of the fixing ring (1004) are overlapped with each other.

7. The de-stressing and tempering device for spring washers according to claim 1, wherein: the clamping assembly (11) comprises a clamping rod (1101), a rotating rod (1102), a transmission rod (1103), a clamping plate (1104) and an anti-slip strip (1105), the rotating rod (1102) is installed at the upper end of the clamping rod (1101), the transmission rod (1103) is hinged to the inner side of the clamping rod (1101), the clamping plate (1104) is installed at the lower end of the clamping rod (1101), and the anti-slip strip (1105) is installed on the inner surface of the clamping plate (1104).

8. The de-stressing and tempering device for spring washers according to claim 7, wherein: the clamping bars (1101) are distributed in bilateral symmetry about the vertical center line of the fixing ring (1004), the clamping bars (1101) form a rotating structure through the rotating rods (1102) and the fixing ring (1004), the driving rods (1103) and the telescopic rods (1002) are connected in a hinged mode, and meanwhile the anti-slip strips (1105) are distributed on the inner surface of the clamping plate (1104) at equal intervals.

9. The de-stressing and tempering device for spring washers according to claims 1-8, characterized in that: the application method of the distressing tempering device for the spring washer comprises the following steps:

s1, firstly, the clamping component in the whole device is lowered to be close to the spring washer to be clamped through the lifting component;

s2, the air pump is started again to drive the plurality of telescopic assemblies to work simultaneously, the telescopic assemblies extend to drive the clamping assemblies to clamp, and a whole group of spring washers are clamped;

s3, starting a servo motor, wherein the servo motor drives the ball seat to move through the lead screw to drive the clamping assembly to horizontally move to the upper part of the bracket;

s4, reversely starting the air pump, driving a plurality of telescopic assemblies to work simultaneously by the air pump, shortening the telescopic assemblies to drive the clamping assemblies to loosen, and enabling a whole set of spring washers to fall on the bracket;

s5, finally, starting tempering furnace equipment, setting the tempering temperature at 220-290 ℃, the tempering time at 25-35min, and adjusting the mesh belt speed control instrument to 68 to carry out tempering operation.

10. The method for using the destressing and tempering device for the spring washer according to claim 9, wherein: the tempering is three stages, wherein the first stage is that the temperature is increased to 240-; the second stage is increased to 260-minus-plus-minus 270 ℃, the temperature is kept for 6-8min, then the temperature is decreased to 230-minus-plus-minus at the speed of 1 ℃/s, the temperature is kept for 3-5min, the third stage is increased to 280-minus-plus-minus 290 ℃, and the temperature is kept for 8-10 min.

Technical Field

The invention relates to the technical field of elastic washer processing, in particular to a distressing tempering device for a spring washer and a using method thereof.

Background

Tempering and stress relief refer to: heat treatment in which the cold deformed metal is heated below the recrystallization temperature to remove internal stresses but still retain the cold work hardening effect is conventionally referred to as stress relief annealing at higher temperatures and as stress relief tempering at lower temperatures. In actual production, hot forging, casting, various cold deformation processes, cutting or cutting, welding, heat treatment, even after the machine parts are assembled, and under the condition of not changing the structure state, keeping cold working, hot working or surface hardening, the steel or the machine parts are heated at a lower temperature so as to remove (all or part of) internal stress and reduce the deformation and cracking tendency, and the process is called tempering stress relief. The spring washer has wide application in bearing and non-bearing structures of common mechanical products, and features low cost, convenient installation and being suitable for frequently assembling and disassembling parts.

However, when the existing spring washer is tempered and destressing, the spring washer is not easy to be placed on a tempering furnace mesh belt well due to the small volume, and a plurality of spring washers are difficult to be placed simultaneously, so that the efficiency of the whole processing process is low.

Disclosure of Invention

The invention aims to provide a destressing tempering device for spring washers and a using method thereof, and solves the problems that the existing spring washers are not easy to be placed on a tempering furnace mesh belt due to small volume and are difficult to operate and place a plurality of spring washers simultaneously when tempering destressing operation is carried out, so that the efficiency of the whole processing process is low.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a destressing tempering device for spring washer, includes lead screw and flexible subassembly, bearing is all installed at both ends about the lead screw, and bearing's below is connected with elevating system, the base is installed to elevating system's below, and the upper surface intermediate position of base is provided with tempering furnace equipment, the guipure is installed to the inside below of tempering furnace equipment, and the upper surface of guipure is connected with the bracket, the outside of lead screw is connected with the ball seat, and installs branch below the ball seat, flexible subassembly evenly installed in the below of branch, and flexible subassembly's below is connected with the centre gripping subassembly, bearing's inside is provided with the pivot, and the right-hand member of pivot is connected with servo motor.

Preferably, the lifting assembly comprises a connecting plate, a fixing bolt, a piston rod, a hydraulic cylinder and a hydraulic pump, the fixing bolt is installed at the left end and the right end of the connecting plate, the piston rod is fixed below the connecting plate, the hydraulic cylinder is connected to the outer side of the lower portion of the piston rod, and the hydraulic pump is installed below the hydraulic cylinder.

Preferably, a communicating structure is formed between the hydraulic pump and the hydraulic cylinder, a telescopic structure is formed between the hydraulic cylinder and the piston rod, one end of the piston rod penetrates through the hydraulic cylinder, and a detachable structure is formed between the other end of the piston rod and the bearing support through a connecting plate and a fixing bolt.

Preferably, be fixed with the diaphragm between the inboard of branch, and the intermediate position top of diaphragm installs the air pump, be connected with the trachea between the adjacent of air pump and flexible subassembly, and the air pump passes through to constitute the intercommunication structure between trachea and the flexible subassembly to tracheal quantity sets up to 5, and tracheal length homogeneous phase equals simultaneously.

Preferably, flexible subassembly includes cylinder, telescopic link, support and solid fixed ring, and the inside below of cylinder is connected with the telescopic link, the cylinder lower surface left and right sides all is fixed with the support, and the lower extreme of support installs solid fixed ring.

Preferably, the one end of telescopic link runs through in the inside of cylinder, and mutually supports between cylinder and the telescopic link and constitute extending structure to the vertical central line of telescopic link and the vertical central line of solid fixed ring coincide each other.

Preferably, the clamping assembly comprises a clamping rod, a rotating rod, a transmission rod, a clamping plate and an anti-slip strip, the rotating rod is installed at the upper end of the clamping rod, the transmission rod is hinged to the inner side of the clamping rod, the clamping plate is installed at the lower end of the clamping rod, and the anti-slip strip is installed on the inner surface of the clamping plate.

Preferably, the clamping bars are distributed in bilateral symmetry about the vertical central line of the fixing ring, the clamping bars form a rotating structure through the rotating rods and the fixing ring, the transmission rods are connected with the telescopic rods in a hinged mode, and the anti-slip strips are distributed on the inner surface of the clamping plate at equal intervals.

Preferably, the use method of the destressing tempering device for the spring washer comprises the following steps:

s1, firstly, the clamping component in the whole device is lowered to be close to the spring washer to be clamped through the lifting component;

s2, the air pump is started again to drive the plurality of telescopic assemblies to work simultaneously, the telescopic assemblies extend to drive the clamping assemblies to clamp, and a whole group of spring washers are clamped;

s3, starting a servo motor, wherein the servo motor drives the ball seat to move through the lead screw to drive the clamping assembly to horizontally move to the upper part of the bracket;

s4, reversely starting the air pump, driving a plurality of telescopic assemblies to work simultaneously by the air pump, shortening the telescopic assemblies to drive the clamping assemblies to loosen, and enabling a whole set of spring washers to fall on the bracket;

and S5, finally, starting tempering furnace equipment, setting the tempering temperature to be 270 ℃, the tempering time to be 30min, and adjusting the mesh belt speed control instrument to be 68 to carry out tempering operation.

Preferably, the tempering is three stages, wherein the first stage is that the temperature is increased to 240-; the second stage is increased to 260-minus-plus-minus 270 ℃, the temperature is kept for 6-8min, then the temperature is decreased to 230-minus-plus-minus at the speed of 1 ℃/s, the temperature is kept for 3-5min, the third stage is increased to 280-minus-plus-minus 290 ℃, and the temperature is kept for 8-10 min. Through thrice heating up and twice extremely fast cooling down, can make the stress of spring washer inside obtain releasing completely, can not make the inside and outside inhomogeneous the being heated of spring washer because of the constant temperature of traditional handicraft lead to the spring washer follow-up use time not long because of inside have the crackle to lead to the life-span. According to the invention, when the external temperature of the spring washer is higher and the internal temperature is lower, the external temperature of the spring washer is rapidly reduced through sudden temperature reduction, so that the temperature difference between the external temperature and the internal temperature of the spring washer is always kept in a smaller state, and the product quality is ensured.

Compared with the prior art, the invention has the following beneficial effects:

1. the hydraulic pump in the lifting assembly is arranged to provide power for the piston rod and the hydraulic cylinder so as to drive the piston rod and the hydraulic cylinder to do telescopic motion, so that the lead screw part of the whole device can be lifted and adjusted to provide convenience for subsequent movement of the spring washer, and the lifting assembly and the bearing support are connected and fixed through the bolt, so that the later-stage disassembly and installation are very convenient;

2. the five air pipes with the same length are connected with the five telescopic assemblies with the same structure, so that a group of telescopic assemblies can be driven to move at the same time through one air pump, energy is effectively saved, and the length of each air pipe is equal, so that the consistency of the telescopic amount of the telescopic assemblies is effectively ensured, the grabbing operation of a plurality of spring washers is realized at the same time, and the operation efficiency of the whole equipment is further improved;

3. the telescopic rod is arranged between the cylinder and the telescopic rod in the telescopic assembly and can be stretched, the bracket is used for connecting and fixing the fixing ring, and the fixing ring is convenient for the telescopic rod to pass through;

4. according to the invention, the clamping plate in the clamping assembly is arc-shaped and is matched with the appearance structure of the spring washer, so that the spring washer is operated to be arranged and shifted by utilizing the clamping action of the clamping plate, and the clamping rod, the rotating rod and the transmission rod are matched with the telescopic rod, so that the clamping plate can be clamped and loosened when the telescopic rod is stretched, the structure is exquisite and the use is convenient, the arranged anti-slip strip is effectively anti-slip, and the problem that the spring washer slips in the moving process is effectively avoided;

5. the whole device can be used for operating and finishing a plurality of spring washers at the same time, the efficiency is high, the operation speed, the tempering temperature and the tempering time of a mesh belt of tempering furnace equipment are controlled, the tempering operation effect is effectively guaranteed, the working efficiency of the whole equipment is further improved, and the practicability is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the structure of the telescopic assembly and the lead screw of the present invention;

FIG. 3 is a schematic view of a clamping assembly according to the present invention;

FIG. 4 is a schematic view of the cross-sectional structure of the bearing support and the lifting assembly of the present invention;

fig. 5 is a schematic top view of the splint of the present invention.

In the figure: 1. a screw rod; 2. a bearing support; 3. a lifting assembly; 301. a connecting plate; 302. fixing the bolt; 303. a piston rod; 304. a hydraulic cylinder; 305. a hydraulic pump; 4. a base; 5. tempering furnace equipment; 6. a mesh belt; 7. a bracket; 8. a ball seat; 9. a strut; 10. a telescoping assembly; 1001. a cylinder; 1002. a telescopic rod; 1003. a support; 1004. a fixing ring; 11. a clamping assembly; 1101. a clamping bar; 1102. a rotating rod; 1103. a transmission rod; 1104. a splint; 1105. anti-slip strips; 12. a rotating shaft; 13. a servo motor; 14. a transverse plate; 15. an air pump; 16. the trachea.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a destressing tempering device for spring washers comprises a screw mandrel 1, a bearing support 2, a lifting assembly 3, a connecting plate 301, a fixing bolt 302, a piston rod 303, a hydraulic cylinder 304, a hydraulic pump 305, a base 4, a tempering furnace device 5, a mesh belt 6, a bracket 7, a ball seat 8, a support rod 9, a telescopic assembly 10, an air cylinder 1001, a telescopic rod 1002, a support 1003, a fixing ring 1004, a clamping assembly 11, a clamping rod 1101, a rotating rod 1102, a transmission rod 1103, a clamping plate 1104, an anti-slip strip 1105, a rotating shaft 12, a servo motor 13, a transverse plate 14, an air pump 15 and an air pipe 16, wherein the bearing support 2 is installed at the left end and the right end of the screw mandrel 1, the lifting assembly 3 is connected below the bearing support 2, the base 4 is installed below the lifting assembly 3, the tempering device 5 is arranged in the middle of the upper surface of the base 4, the upper surface of the mesh belt 6 is connected with a bracket 7, the outer side of the lead screw 1 is connected with a ball seat 8, a support rod 9 is arranged below the ball seat 8, telescopic assemblies 10 are uniformly arranged below the support rod 9, a clamping assembly 11 is connected below the telescopic assemblies 10, a rotating shaft 12 is arranged inside the bearing support 2, and the right end of the rotating shaft 12 is connected with a servo motor 13;

the lifting assembly 3 comprises a connecting plate 301, a fixing bolt 302, a piston rod 303, a hydraulic cylinder 304 and a hydraulic pump 305, the fixing bolt 302 is installed at the left end and the right end of the connecting plate 301, the piston rod 303 is fixed below the connecting plate 301, the hydraulic cylinder 304 is connected with the outer side below the piston rod 303, the hydraulic pump 305 is installed below the hydraulic cylinder 304, a communication structure is formed between the hydraulic pump 305 and the hydraulic cylinder 304, a telescopic structure is formed between the hydraulic cylinder 304 and the piston rod 303, one end of the piston rod 303 penetrates through the inside of the hydraulic cylinder 304, meanwhile, the other end of the piston rod 303 forms a detachable structure between the connecting plate 301 and the fixing bolt 302 and the bearing support 2, the hydraulic pump 305 in the lifting assembly 3 is arranged to provide power for the piston rod 303 and the hydraulic cylinder 304 so as to drive the telescopic movement between the piston rod 303 and the hydraulic cylinder 304, so that the lead screw 1 part of, the lifting assembly 3 and the bearing support 2 are fixedly connected through bolts, and the later-stage disassembly and assembly are very convenient;

a transverse plate 14 is fixed between the inner sides of the supporting rods 9, an air pump 15 is installed above the middle position of the transverse plate 14, air pipes 16 are connected between the air pump 15 and the telescopic assemblies 10 in a neighboring mode, the air pump 15 and the telescopic assemblies 10 form a communicating structure through the air pipes 16, the number of the air pipes 16 is 5, the lengths of the air pipes 16 are equal, five air pipes 16 with equal length are connected with five telescopic assemblies 10 with the same structure, so that one air pump 15 can drive one group of telescopic assemblies 10 to move at the same time, energy is effectively saved, the lengths of the air pipes 16 are equal, the consistency of the telescopic amount of the telescopic assemblies 10 is effectively guaranteed, the grabbing operation of a plurality of spring washers is achieved at the same time, and the operation efficiency of the whole equipment is further improved;

the telescopic assembly 10 comprises an air cylinder 1001, a telescopic rod 1002, a support 1003 and a fixing ring 1004, the telescopic rod 1002 is connected to the lower portion of the inner portion of the air cylinder 1001, the supports 1003 are fixed to the left side and the right side of the lower surface of the air cylinder 1001, the fixing ring 1004 is mounted at the lower end of the support 1003, one end of the telescopic rod 1002 penetrates through the air cylinder 1001, the air cylinder 1001 and the telescopic rod 1002 are matched with each other to form a telescopic structure, the vertical center line of the telescopic rod 1002 and the vertical center line of the fixing ring 1004 are overlapped with each other, the air cylinder 1001 and the telescopic rod 1002 in the telescopic assembly 10 can be telescopic, the support 1003 is used for connecting and fixing the;

the clamping assembly 11 comprises a clamping rod 1101, a rotating rod 1102, a transmission rod 1103, clamping plates 1104 and anti-slip strips 1105, wherein the rotating rod 1102 is installed at the upper end of the clamping rod 1101, the transmission rod 1103 is hinged to the inner side of the clamping rod 1101, the clamping plates 1104 are installed at the lower ends of the clamping rod 1101, the anti-slip strips 1105 are installed on the inner surfaces of the clamping plates 1104, the clamping rod 1101 is distributed in bilateral symmetry with respect to the vertical center line of the fixing ring 1004, the clamping rod 1101 forms a rotating structure through the rotating rod 1102 and the fixing ring 1004, the transmission rod 1103 is connected with the telescopic rod 1002 in a hinged mode, the anti-slip strips 1105 are distributed on the inner surfaces of the clamping plates 1104 at equal intervals, the clamping plates 1104 in the clamping assembly 11 are arranged to be arc-shaped and matched with the external shape structure of the spring washers, so that the spring washers can be arranged and displaced by utilizing the clamping action of the, when the telescopic rod 1002 is telescopic, the clamping plate 1104 can be clamped and loosened, the structure is exquisite, the use is convenient, the arranged anti-slip strips 1105 effectively prevent slipping, and the problem that the spring washer slips in the moving process is effectively avoided;

the application method of the stress-relieving tempering device for the spring washer comprises the following steps:

s1, firstly, the clamping component in the whole device is lowered to be close to the spring washer to be clamped through the lifting component;

s2, the air pump is started again to drive the plurality of telescopic assemblies to work simultaneously, the telescopic assemblies extend to drive the clamping assemblies to clamp, and a whole group of spring washers are clamped;

s3, starting a servo motor, wherein the servo motor drives the ball seat to move through the lead screw to drive the clamping assembly to horizontally move to the upper part of the bracket;

s4, reversely starting the air pump, driving a plurality of telescopic assemblies to work simultaneously by the air pump, shortening the telescopic assemblies to drive the clamping assemblies to loosen, and enabling a whole set of spring washers to fall on the bracket;

s5, finally, starting tempering furnace equipment, tempering for three stages, wherein in the first stage, the temperature is increased to 250 ℃, the temperature is kept for 7min, then the temperature is reduced to 225 ℃ at a speed of 1 ℃/S, and the temperature is kept for 5 min; the temperature is increased to 270 ℃ in the second stage, the temperature is kept for 8min, then the temperature is reduced to 235 ℃ at a speed of 1 ℃/s at a high speed, the temperature is kept for 5min, and the temperature is increased to 290 ℃ in the third stage, and the temperature is kept for 10 min. The mesh belt speed control instrument adjustment value is 68, and tempering operation is carried out.

Set up whole device and can operate the arrangement to a plurality of spring washers simultaneously, efficiency is higher to through the 6 functioning speed of guipure to tempering furnace equipment 5, tempering temperature and tempering time are controlled, when effectively having guaranteed the operation effect of tempering, have further promoted the work efficiency of whole equipment, and the practicality is stronger.

The working principle is as follows: for the stress-relieving tempering device for the spring washer and the use method thereof, firstly, a base 4 supports tempering furnace equipment 5, the spring washer is placed on the upper surface of the base 4, a bearing support 2 is erected above a connecting plate 301, then a fixing bolt 302 is screwed, the bearing support 2 and a lifting assembly 3 can be connected and fixed, then a hydraulic pump 305 in the lifting assembly 3 is started firstly, the hydraulic pump 305 works to draw out hydraulic oil in a hydraulic cylinder 304, the pressure in the hydraulic cylinder 304 is reduced, a piston rod 303 retracts towards the interior of the hydraulic cylinder 304, and therefore the heights of a screw rod 1 and the bearing support 2 are driven to be reduced until a clamping assembly 11 is close to the spring washer;

then, an air pump 15 on the transverse plate 14 is started, the air pump 15 works to simultaneously inflate the interiors of air cylinders 1001 in the multiple telescopic assemblies 10 through an air pipe 16, air in the air cylinders 1001 is increased, pressure intensity is increased, the pressure pushes a telescopic rod 1002 to press downwards, the telescopic rod 1002 penetrates through a fixing ring 1004, the fixing ring 1004 is fixed with the air cylinders 1001 through a support 1003, the telescopic rod 1002 drives one end of a transmission rod 1103 to move downwards, the other end of the transmission rod 1103 pulls a clamping rod 1101, the clamping rod 1101 rotates around a rotating rod 1102 and tightens inwards, the distance between two clamping plates 1104 is reduced until the anti-slip strips 1105 contact with the spring washers, the clamping plates 1104 clamp the spring washers, and the lifting assemblies 3 are lifted through the same operation;

then a servo motor 13 is started, the servo motor 13 drives a screw rod 1 to rotate through a rotating shaft 12, a thread effect occurs between the screw rod 1 and a ball seat 8, so that the ball seat 8 moves rightwards along the screw rod 1, the ball seat 8 drives a telescopic assembly 10 to integrally and horizontally move through a support rod 9, after the ball seat moves above a bracket 7, the telescopic assembly 10 and a clamping assembly 11 are operated in a similar manner, a spring washer is loosened by a clamping plate 1104 and hung on the bracket 7, then tempering furnace equipment 5 is started, the rotating speed, the tempering temperature and the tempering time of a mesh belt 6 are set, and therefore the use process of the stress-removing tempering device for the whole spring washer and the use method of the stress-removing tempering device is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.