Search

CN-122012898-A - Tempering device for nitriding surface of spring

CN122012898ACN 122012898 ACN122012898 ACN 122012898ACN-122012898-A

Abstract

The invention relates to the technical field of spring manufacturing, in particular to a tempering device for nitriding treatment of a spring surface, which comprises a bottom frame, a tempering bin, a conveying assembly, a sliding support and a material carrying assembly, wherein a sliding groove plate and an arc-shaped sliding rail are arranged at the top of the sliding support, a rotating wheel of the material carrying assembly rolls in the arc-shaped sliding rail, the material carrying assembly is provided with a cylindrical material carrying basket, a six-edge sleeve, a driving transmission rod and a connecting master disc, an internal sliding rail, a heating element, a temperature sensor and a connector are arranged in the tempering bin, the connector can be automatically abutted with the connecting master disc and drive the material carrying assembly to rotate, the tempering bin can also realize switching of nitrogen atmosphere, and the conveying assembly drives an upper feeder and a lower feeder through a power assembly to realize automatic feeding and discharging of the sliding support. The invention can lead the spring to be tempered uniformly, avoid oxidation of the nitriding layer, reduce the labor intensity and the potential safety hazard of operators and improve the tempering efficiency and the spring quality.

Inventors

  • LI XIN
  • WU ZHIKE
  • ZHAN CHEN

Assignees

  • 宿迁三众精密弹簧制造有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. A tempering device for nitriding the surface of a spring is characterized by comprising, The sliding support (400) comprises a rectangular bearing frame (401), wherein two parallel sliding groove plates (402) are fixedly connected to the top of the bearing frame (401), two symmetrically distributed arc-shaped sliding rails (403) are fixedly connected to the top of the bearing frame (401), and a traction towing ring (404) is fixedly connected to the center of one side of the bearing frame (401); The material carrying assembly (500) comprises two symmetrical rotating wheels (501), the rotating wheels (501) roll in corresponding arc sliding rails (403), a cylindrical material carrying basket (503) is fixedly connected between the two rotating wheels (501), an arc material discharging screen (504) is rotatably connected to the opening of the cylindrical material carrying basket (503), a six-edge sleeve (506) and a driving transmission rod (507) are fixedly connected to the center of one face, away from the rotating wheels (501), of each rotating wheel, a connecting master disc (508) is fixedly connected to the free end of each driving transmission rod (507), and a plurality of connecting grooves (508 a) are formed in the surface, away from the driving transmission rod (507), of each connecting master disc (508) at equal intervals along the circumferential direction; Tempering bin (200) comprises a bin body (201), a bin gate (202) is rotationally connected to the front side of the bin body (201), a connector used for being connected with a connecting master disc (508) and driving a material carrying assembly (500) to rotate is mounted in the bin gate (202), a rotating motor (210) used for driving the connector to rotate is fixedly connected to the outside of the bin gate (202), two built-in sliding rails (211) parallel to each other are fixedly connected to the bottom of an inner cavity of the bin body (201), a sliding groove plate (402) is matched with the built-in sliding rails (211), a six-edge transmission rod (204) matched with a six-edge sleeve (506) in a plugging mode is rotationally connected to the back side of the bin body (201), and The conveying assembly (300) comprises a fixed support (301), wherein the top of the fixed support (301) is fixedly connected with two external sliding rails (302) which are respectively in corresponding butt joint with the two internal sliding rails (211), a power assembly is arranged in the fixed support (301), and an upper feeder and a lower feeder which are used for pushing and pulling out the sliding support (400) to finish feeding and discharging actions are arranged outside the power assembly.
  2. 2. The tempering device for nitriding treatment of the spring surface according to claim 1, wherein communicating pipes (213) are fixedly connected to two sides of the bin body (201), high-temperature resistant valves (214) are arranged at free ends of the two communicating pipes (213), and the two high-temperature resistant valves (214) are respectively used for connecting a nitrogen access pipeline and an air extraction pipeline, so that nitrogen atmosphere in the tempering bin (200) is maintained.
  3. 3. A tempering device for nitriding a spring surface according to claim 1, wherein an installation seat (216) is fixedly connected to the top of the bin body (201), a fixed connection frame (215) is fixedly connected to the outside of the bin door (202), a hydraulic rod (217) for pressing the bin door (202) is rotatably connected to the inside of the installation seat (216), the fixed connection frame (215) is rotatably connected to the output end of the hydraulic rod (217), and a sealing ring is fixedly embedded in the inner side of the bin door (202).
  4. 4. The tempering device for nitriding the surface of the spring according to claim 1, wherein the connector comprises a connecting rod (205) rotatably connected to the inside of the bin gate (202), the connecting rod (205) is fixedly connected to the output end of the rotating motor (210), a guide slide way (206) is arranged at one end of the connecting rod (205) positioned at the inside of the bin body (201), a sliding guide rod (207) is slidably connected to the inside of the guide slide way (206), a connecting disc (209) is fixedly connected to the free end of the sliding guide rod (207), a plurality of connecting convex rods (209 a) matched with the connecting grooves (508 a) are fixedly connected to one surface of the connecting disc (209) facing the connecting mother disc (508) along the circumferential equidistant, and a high-temperature-resistant buffer spring (208) for pushing the sliding guide rod (207) is arranged in the guide slide way (206), so that the connecting convex rods (209 a) and the connecting grooves (508 a) are automatically abutted.
  5. 5. A tempering device for nitriding of a spring surface according to claim 1, wherein a plurality of heating elements (212) for raising the internal temperature of the tempering chamber (200) are installed on the inner wall of the tempering chamber (200), and a temperature sensor (218) for monitoring the internal temperature of the tempering chamber (200) is installed on the top of the inner wall of the tempering chamber (200).
  6. 6. A tempering device for nitriding a spring surface according to claim 1, wherein the power assembly comprises a driving rotating shaft (311) and a driven rotating shaft (312) which are rotatably connected to the inside of a fixed support (301), a driving sprocket (313) and a driven sprocket (314) are fixedly connected to the outside of the driving rotating shaft (311) and the driven rotating shaft (312) respectively, a transmission chain (315) is installed on the driving sprocket (313) and the driven sprocket (314) and the outside, a power motor (316) is fixedly connected to one side of the fixed support (301), and the driving rotating shaft (311) is fixedly connected to the output end of the power motor (316).
  7. 7. A tempering device for nitriding a spring surface is characterized in that the upper feeder and the lower feeder comprise a movable sliding block (304) fixedly connected to the outside of a transmission chain (315), four limiting rods (305) sliding up and down are connected inside the movable sliding block (304), the tops of the four limiting rods (305) are fixedly connected with wedge-shaped mounting blocks (306) with inclined planes deviating from a bin body (201), one surface of each mounting block (306) facing the bin body (201) is fixedly connected with a top pulling rod (307) for pushing and pulling a sliding support (400), the free end of each top pulling rod (307) is rotatably connected with a rotating rod (308), the lower rotation limiting of each rotating rod (308) is formed by the corresponding top pulling rod (307), a traction hook (309) for hooking a traction ring (404) is fixedly connected to the position, close to the free end, and a reset spring (310) is assembled between each wedge-shaped mounting block (306) and the corresponding movable sliding block (304).
  8. 8. A tempering device for nitriding a spring surface according to claim 7, wherein a guide strut (303) is fixedly connected to the inside of the fixing bracket (301), and a movable slider (304) is slidably connected to the outside of the guide strut (303) for securing the movement stability of the movable slider (304).
  9. 9. A tempering device for nitriding a spring surface according to claim 1, wherein a plurality of connecting rods (502) for strengthening integral strength are fixedly connected between two rotating wheels (501), a lifting ring (505) is fixedly connected to the center of one connecting rod (502), the lifting ring (505) is opposite to the center of a discharging net plate (504) when the discharging net plate (504) is closed, the discharging net plate (504) is connected to the outer part of a cylindrical material carrying net basket (503) through a bolt structure, and a plurality of separation net plates (509) parallel to the end face of the cylindrical material carrying net basket (503) are fixedly connected to the inner part of the cylindrical material carrying net basket (503).
  10. 10. The tempering device for nitriding the surface of the spring according to claim 1, further comprising a bottom frame (100), wherein the bin body (201) and the fixing support (301) are fixedly connected to the top of the bottom frame (100), and a total control box (600) for controlling the operation of electrical equipment of the whole device is fixedly connected to the top of the bottom frame (100).

Description

Tempering device for nitriding surface of spring Technical Field The invention belongs to the technical field of spring manufacturing, and particularly relates to a tempering device for nitriding the surface of a spring. Background The spring is widely applied to basic parts in a plurality of fields such as machinery, automobiles, electronics and the like, surface nitriding treatment is often carried out on the spring in order to improve the surface hardness, wear resistance and corrosion resistance of the spring in industrial production, and tempering technology is needed after nitriding treatment so as to eliminate internal stress of the spring and stabilize tissue performance and avoid failure problems such as deformation, fracture and the like of the spring in the use process. Most tempering devices of the prior art adopt a static material loading mode, so that the springs are heated unevenly in the tempering process, partial tempering is insufficient easily to cause uneven performance of the nitriding layers of the springs, the overall quality of the springs is affected, and if the nitrided springs are in an air environment during tempering, oxidation peeling and denitrification phenomena are easy to occur on the surface nitriding layers, the protection effect of the nitriding layers is destroyed, the corrosion resistance and the surface hardness of the springs are reduced, meanwhile, the feeding and discharging processes are mostly dependent on manual operation, operators need to be close to a push-pull material loading structure of a high-temperature tempering bin, the labor intensity is high, potential safety hazards such as scalds exist, and the feeding and discharging efficiency is low. Therefore, we provide a tempering device for nitriding the surface of a spring to solve the above problems. Disclosure of Invention The invention aims to provide a tempering device for nitriding the surface of a spring, which realizes automatic feeding and discharging through the cooperation of a sliding support and a conveying assembly, ensures that the spring is heated uniformly by utilizing the rotation design of a material carrying assembly, combines the nitrogen atmosphere control of a tempering bin to avoid the oxidation of a nitriding layer, and solves the problems of uneven heating, easy damage of the nitriding layer, inconvenient feeding and discharging and potential safety hazard of the traditional spring tempering device. In order to solve the technical problems, the tempering device for nitriding the surface of the spring comprises a sliding bracket and a rectangular bearing frame, wherein the top of the bearing frame is fixedly connected with two mutually parallel sliding groove plates, the top of the bearing frame is fixedly connected with two symmetrically distributed arc-shaped sliding rails, and the center of one side of the bearing frame is fixedly connected with a traction towing ring; The material loading assembly comprises two symmetrical rotating wheels, the rotating wheels roll in corresponding arc-shaped sliding rails, a cylindrical material loading basket is fixedly connected between the two rotating wheels, an arc-shaped material discharging screen is rotatably connected to the opening of the cylindrical material loading basket, a six-edge sleeve and a driving transmission rod are fixedly connected to the center of one face, deviating from the rotating wheels, of each rotating wheel, a connecting master disc is fixedly connected to the free end of each driving transmission rod, and a plurality of connecting grooves are formed in the face, deviating from the driving transmission rod, of each connecting master disc at equal intervals along the circumferential direction; The tempering bin comprises a bin body, wherein the front surface of the bin body is rotationally connected with a bin gate, the inside of the bin gate is provided with a connector which is used for being connected with a connecting master disc and driving a material carrying assembly to rotate, the outside of the bin gate is fixedly connected with a rotating motor which is used for driving the connector to rotate, the bottom of an inner cavity of the bin body is fixedly connected with two mutually parallel built-in sliding rails, a sliding groove plate is matched with the built-in sliding rails, the back surface of the bin body is rotationally connected with a six-edge transmission rod which is in splicing fit with a six-edge sleeve, and The conveying assembly comprises a fixed support, wherein the top of the fixed support is fixedly connected with two external sliding rails which are respectively in corresponding butt joint with the two internal sliding rails, a power assembly is arranged in the fixed support, and an upper feeder and a lower feeder which are used for pushing and pulling out the sliding support to complete feeding and discharging actions are arranged outside the power assembly. The invention is further arran