Heat treatment method and heat treatment device for metal workpiece

Abstract

The present invention relates to the field of metal heat treatment structures, and in particular to a heat treatment device for a metal workpiece, wherein a slide plate is installed on the upper surface of the base plate through a pulling mechanism, a flame head is installed on the upper surface of the base plate through a fixing mechanism, a connecting frame is installed on the upper surface of the slide plate through a raising mechanism, a rotating gear is installed inside the connecting frame through a belt transfer mechanism, a supporting bottom is installed on the upper surface of the slide plate through a lifting mechanism, a connecting column is installed on the connecting mechanism on the upper surface of the supporting bottom, a roller is installed on the outer surface of the connecting column through a supporting mechanism, and a rotating part is installed on the outer surface of the connecting column through a self-rotating mechanism. A heat treatment method for a metal workpiece is also proposed. The present invention realizes uniform heating of the outer surface of the gear during heat treatment, and adjusts according to different inner rings of metal gears to perform heat processing on multiple gears.

Description

Technical Field

[0001] The invention relates to the field of metal heat treatment structures, and in particular to a heat treatment method and a heat treatment device for a metal workpiece. Background Art

[0002] Heat treatment of metals has many beneficial effects, including improving mechanical properties, improving process performance, eliminating internal stress, adjusting structure and performance, and improving corrosion resistance and fatigue resistance. These effects make heat treatment one of the indispensable and important processes in the processing of metal materials. Heat treatment can significantly improve the strength and hardness of metals. Through appropriate heat treatment processes, such as tempering, the internal stress generated by quenching can be eliminated, the toughness of the material can be improved, and it can be more suitable for bearing impact and vibration. Heat treatment can also improve the ductility of metals to a certain extent, making them easier to process and form.

[0003] The tooth surface of the gear needs to have high hardness, high wear resistance and high contact fatigue strength, and be able to withstand working conditions such as high speed, heavy load, impact and friction. The tooth root of the gear has high strength, high toughness and high bending fatigue strength, and can resist alternating bending stress and impact stress.

[0004] Existing heat treatment devices perform heat treatment on metal workpieces by placing them in a high-temperature furnace. They are unable to perform heat treatment only on the outside of large gears. Moreover, existing heat treatment devices can only perform heat treatment on multiple locations of the outside of large gears manually, which results in uneven heating of multiple locations of the gears. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a heat treatment method and a heat treatment device for a metal workpiece.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a heat treatment device for metal workpieces, comprising a bottom plate, a slide plate is installed on the upper surface of the bottom plate through a pulling mechanism, a flame head is installed on the upper surface of the bottom plate through a fixing mechanism, a connecting frame is installed on the upper surface of the slide plate through a heightening mechanism, a rotating gear is installed inside the connecting frame through a belt transfer mechanism, a supporting bottom is installed on the upper surface of the slide plate through a lifting mechanism, a connecting column is installed on the upper surface of the supporting bottom through a connecting mechanism, a roller is installed on the outer surface of the connecting column through a supporting mechanism, and a rotating member is installed on the outer surface of the connecting column through a self-rotating mechanism;

[0007] The belt transfer mechanism includes a rotating motor fixedly mounted on the upper surface of the connecting frame, the rotating motor movably penetrates the upper surface of the connecting frame, a welding plate is fixedly mounted on the lower end of the rotating motor, and the welding plate is fixedly mounted on the lower surface of the rotating gear, the rotating gear drives the workpiece to rotate at a uniform speed, and heat treatment is performed through a flame spray head.

[0008] Preferably, the pulling mechanism comprises a guide rail fixedly mounted on the upper surface of the bottom plate, a slide rail is movably mounted in the guide rail, and the slide rail is mounted on the lower surface of the slide plate.

[0009] Preferably, the fixing mechanism includes a fixing frame fixedly mounted on the upper surface of the base plate and the fixing frame is mounted on the front side of the skateboard, a fixing plate is fixedly mounted on the inner surface of the upper end of the fixing frame, an air duct is fixedly mounted on the inner surface of the fixing plate, and the flame head is fixedly mounted on the rear end of the air duct, and a connecting head is fixedly mounted on the front end of the air duct.

[0010] Preferably, the raising mechanism comprises a supporting frame fixedly mounted on the upper surface of the skateboard, a supporting plate fixedly mounted on the upper surface of the skateboard, and the supporting plate fixedly mounted on the inner surface of the supporting frame, and the connecting frame fixedly mounted on the upper surface of the supporting frame.

[0011] Preferably, the lifting mechanism includes a vertical telescopic cylinder fixedly mounted on the upper surface of the slide, and the vertical telescopic cylinder is fixedly mounted on the lower surface of the support bottom, a vertical guide cylinder is fixedly mounted on the upper surface of the slide, a vertical guide rod is movably mounted on the inner surface of the vertical guide cylinder, and the vertical guide rod is fixedly mounted on the lower surface of the support bottom.

[0012] Preferably, the connecting mechanism comprises a fixing column fixedly mounted on the upper surface of the supporting base, four height-increasing members are fixedly mounted on the upper surface of the supporting base, and the height-increasing members are mounted around the fixing column, and the fixing column is fixedly mounted on the lower surface of the connecting column.

[0013] Preferably, the supporting mechanism includes two transverse telescopic cylinders fixedly mounted on the outer surface of the connecting column, two transverse guide cylinders fixedly mounted on the outer surface of the connecting column, and the transverse guide cylinders are mounted below the transverse telescopic cylinders, a transverse guide rod is movably mounted in each of the transverse guide cylinders, a recess is fixedly mounted on the outer side of the transverse guide rod, and the recess is fixedly mounted on the outer side of the transverse telescopic cylinder, and the roller is movably mounted on the inner surface of the recess.

[0014] Preferably, the self-rotation mechanism includes a fixed bottom fixedly mounted on the upper surface of the height-increasing member, a fixed groove is provided inside the fixed bottom, and the connecting column is fixedly mounted on the inner surface of the fixed groove, a fixed member is fixedly mounted on the upper surface of the fixed bottom, a rotating member is movably mounted inside the fixed member, a rotating groove is provided on the lower surface of the rotating member, and the fixed member is movably mounted in the rotating groove, a plurality of rolling grooves are provided on the lower surface of the rotating member, balls are movably mounted on the inner surfaces of the rolling grooves, and the balls are movably mounted on the upper surface of the fixed bottom, a sealing plate is fixedly mounted on the lower surface of the rotating member, and the sealing plate is movably mounted on the outer surface of the balls.

[0015] A method for heat treatment of a metal workpiece is also proposed, which is carried out using the above device and comprises the following steps:

[0016] S1. Fix the metal gear through the supporting mechanism and the rotating part;

[0017] S2, meshing the metal gear with the rotating gear, and realizing the self-rotation of the metal gear through the belt transfer mechanism;

[0018] S3, adjusting the height of the metal gear through the lifting mechanism;

[0019] S4, moving the metal gear laterally through the pulling mechanism;

[0020] S5. Heat treatment is performed on the metal gears by means of a flame jet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The welding plate is driven to rotate at a constant speed by the rotating motor, so that the rotating gear drives the meshing metal gear to rotate at a constant speed, so that the outer surface of the gear is evenly heated during the heat treatment process.

[0023] 2. The telescopic cylinder is adjusted according to the different inner rings of the metal gears, and the rollers rotate when the metal gears rotate, thereby reducing the friction between the rollers and the metal gears.

[0024] 3. The height of the metal gears can be adjusted by vertically moving the telescopic cylinder, so that multiple gears can be hot-processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a heat treatment method and a heat treatment device for a metal workpiece according to the present invention;

[0026] Figure 2 A schematic diagram of the structure of a drawing mechanism of a heat treatment method and a heat treatment device for a metal workpiece according to the present invention;

[0027] Figure 3 A schematic diagram of a fixing mechanism structure of a heat treatment method and a heat treatment device for a metal workpiece according to the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of an elevated mechanism of a heat treatment method and heat treatment device for a metal workpiece according to the present invention;

[0029] Figure 5 A schematic diagram of the internal structure of a rotating mechanism of a heat treatment method and heat treatment device for a metal workpiece according to the present invention;

[0030] Figure 6 A schematic diagram of a heat treatment method for a metal workpiece and a lifting mechanism structure of a heat treatment device according to the present invention;

[0031] Figure 7 A schematic diagram of the self-rotation structure of a heat treatment method and heat treatment device for a metal workpiece according to the present invention;

[0032] Figure 8 A heat treatment method and a heat treatment device for a metal workpiece according to the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0033] Fig. 9 A schematic diagram of a support mechanism of a heat treatment method and a heat treatment device for a metal workpiece according to the present invention;

[0034] In the figure: 1. bottom plate; 2. guide rail; 3. slide rail; 4. slide plate; 5. fixed frame; 6. fixed plate; 7. connector; 8. flame head; 9. support frame; 10. connecting frame; 11. rotating motor; 12. support plate; 13. rotating gear; 14. welding plate; 15. vertical telescopic cylinder; 17. supporting bottom; 18. height increasing member; 19. vertical guide cylinder; 20. vertical guide rod; 21. air guide tube; 22. fixed column; 23. connecting column; 24. transverse guide cylinder; 25. transverse guide rod; 26. transverse telescopic cylinder; 28. concave member; 29. ​​roller; 30. fixed bottom; 31. fixed groove; 32. fixed member; 33. rotating member; 34. rotating groove; 35. rolling groove; 36. ball; 37. sealing plate; 38. metal gear. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0036] like Figure 1-Figure 9 A heat treatment device for a metal workpiece shown in the figure comprises a bottom plate 1, a slide plate 4 is mounted on the upper surface of the bottom plate 1 through a pulling mechanism, a flame head 8 is mounted on the upper surface of the bottom plate 1 through a fixing mechanism, a connecting frame 10 is mounted on the upper surface of the slide plate 4 through a raising mechanism, a rotating gear 13 is mounted inside the connecting frame 10 through a belt transfer mechanism, a supporting bottom 17 is mounted on the upper surface of the slide plate 4 through a lifting mechanism, a connecting column 23 is mounted on the upper surface of the supporting bottom 17 through a connecting mechanism, a roller 29 is mounted on the outer surface of the connecting column 23 through a supporting mechanism, and a rotating member 33 is mounted on the outer surface of the connecting column 23 through a self-rotating mechanism;

[0037] The belt transfer mechanism includes a rotating motor 11 fixedly mounted on the upper surface of the connecting frame 10, which is convenient for installing and fixing the rotating motor 11. The rotating motor 11 movably penetrates the upper surface of the connecting frame 10. A welding plate 14 is fixedly mounted on the lower end of the rotating motor 11, and the welding plate 14 is fixedly mounted on the lower surface of the rotating gear 13. The rotating motor 11 drives the welding plate 14 to rotate at a uniform speed, so that the rotating gear 13 drives the meshing metal gear 38 to rotate at a uniform speed.

[0038] The pulling mechanism includes a guide rail 2 fixedly mounted on the upper surface of the base plate 1, a slide rail 3 movably mounted inside the guide rail 2, and the slide rail 3 is mounted on the lower surface of the slide plate 4. The guide rail 2 is movably connected to the slide rail 3, so that the metal gear 38 is placed on the rotating part 33 and then pushed into the inner side of the flame head 8.

[0039] The fixing mechanism includes a fixing frame 5 fixedly mounted on the upper surface of the base plate 1 and the fixing frame 5 is mounted on the front side of the slide plate 4, a fixing plate 6 is fixedly mounted on the inner surface of the upper end of the fixing frame 5, an air guide tube 21 is fixedly mounted on the inner surface of the fixing plate 6, the fixing plate 6 improves the stability of the air guide tube 21, and a flame head 8 is fixedly mounted on the rear end of the air guide tube 21 to facilitate heat treatment of the metal gear 38, and a connector 7 is fixedly mounted on the front end of the air guide tube 21 to facilitate external gas for flame spraying.

[0040] The raising mechanism includes a supporting frame 9 fixedly mounted on the upper surface of the slide plate 4, a supporting plate 12 fixedly mounted on the upper surface of the slide plate 4, and the supporting plate 12 fixedly mounted on the inner surface of the supporting frame 9, and a connecting frame 10 fixedly mounted on the upper surface of the supporting frame 9, and the supporting force of the supporting frame 9 is strengthened by the supporting plate 12.

[0041] The lifting mechanism includes a vertical telescopic cylinder 15 fixedly mounted on the upper surface of the slide plate 4, and the vertical telescopic cylinder 15 is fixedly mounted on the lower surface of the support base 17. The height of the metal gear 38 is adjusted by the vertical telescopic cylinder 15, so that multiple gears are hot-processed. A vertical guide cylinder 19 is fixedly mounted on the upper surface of the slide plate 4, and a vertical guide rod 20 is movably mounted on the inner surface of the vertical guide cylinder 19, and the vertical guide rod 20 is fixedly mounted on the lower surface of the support base 17. The support base 17 is stabilized by the vertical guide rod 20 and the vertical guide cylinder 19.

[0042] The connecting mechanism includes a fixed column 22 fixedly installed on the upper surface of the supporting base 17, and four raising components 18 are fixedly installed on the upper surface of the supporting base 17. The raising components 18 are installed around the fixed column 22, and the fixed column 22 is fixedly installed on the lower surface of the connecting column 23. The upper supporting mechanism is connected through the fixed column 22, and the height of the metal gear 38 is increased through the raising components 18.

[0043] The supporting mechanism includes two transverse telescopic cylinders 26 fixedly mounted on the outer surface of the connecting column 23, and two transverse guide cylinders 24 fixedly mounted on the outer surface of the connecting column 23, and the transverse guide cylinders 24 are mounted below the transverse telescopic cylinders 26, and a transverse guide rod 25 is movably mounted in each transverse guide cylinder 24, which is adjusted according to the different inner rings of the metal gears 38 through the transverse telescopic cylinders 26, and is stabilized by the transverse guide cylinders 24 and the transverse guide rods 25, and a recess 28 is fixedly mounted on the outer side of the transverse guide rod 25, and the recess 28 is fixedly mounted on the outer side of the transverse telescopic cylinder 26, and a roller 29 is movably mounted on the inner surface of the recess 28, so that the roller 29 can rotate easily when the metal gear 38 rotates, thereby reducing the friction between the roller 29 and the metal gear 38.

[0044] The self-rotation mechanism includes a fixed base 30 fixedly mounted on the upper surface of the height-increasing member 18, a fixed groove 31 is provided inside the fixed base 30, and a connecting column 23 is fixedly mounted on the inner surface of the fixed groove 31 to facilitate the fixed installation of the connecting column 23, a fixed member 32 is fixedly mounted on the upper surface of the fixed base 30, a rotating member 33 is movably mounted inside the fixed member 32, a rotating groove 34 is provided on the lower surface of the rotating member 33, and the fixed member 32 is movably mounted in the rotating groove 34, by movably mounting the fixed member 32 in the rotating groove 34, the rotating member 33 and the fixed base 30 can achieve a split-rotation effect, a plurality of rolling grooves 35 are provided on the lower surface of the rotating member 33, a ball 36 is movably mounted on the inner surface of the rolling groove 35, and the ball 36 is movably mounted on the upper surface of the fixed base 30, the friction between the rotating member 33 and the fixed base 30 is reduced by the ball 36, a sealing plate 37 is fixedly mounted on the lower surface of the rotating member 33, and the sealing plate 37 is movably mounted on the outer surface of the ball 36 to facilitate the fixing of the ball 36.

[0045] During use, multiple metal gears 38 are placed on the rotating part 33, and the metal gears 38 are meshed with the rotating gears 13. The inner surface of the metal gears 38 is supported by the rollers 29, and the metal gears 38 are moved into the fixed frame 5 by the slide plate 4. The height is adjusted by the vertical telescopic cylinder 15 to make the bottom metal gear 38 level with the flame head 8, and the rotating motor 11 is turned on to drive the rotating gear 13 to rotate through the welding plate 14. When the rotating gear 13 rotates, the metal gears 38 are driven to rotate by the meshing gears. The connector 7 connects the gas to the flame head 8 to heat treat the uniformly rotating metal gears 38. After the bottom metal gears 38 are heat treated, the vertical telescopic cylinder 15 is lowered to heat treat the upper metal gears 38, and the heat treatment steps are repeated until all the metal gears 38 on the rotating part 33 are heat treated, and then the metal gears 38 are moved out by the slide plate 4, and the rollers 29 are adjusted to take out the metal gears 38 for subsequent operations.

[0046] In summary, a method for heat treatment of a metal workpiece is also proposed, which is carried out using the above device and includes the following steps:

[0047] S1, fixing the metal gear 38 through the supporting mechanism and the rotating member 33;

[0048] S2, meshing the metal gear 38 with the rotating gear 13, and realizing the self-rotation of the metal gear 38 through the belt transfer mechanism;

[0049] S3, adjusting the height of the metal gear 38 by means of a lifting mechanism;

[0050] S4, moving the metal gear 38 laterally by the pulling mechanism;

[0051] S5. The metal gear 38 is heat treated by the flame head 8.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat treatment device for a metal workpiece, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is mounted with a slide plate (4) via a pulling mechanism, the upper surface of the bottom plate (1) is mounted with a flame head (8) via a fixing mechanism, the upper surface of the slide plate (4) is mounted with a connecting frame (10) via a raising mechanism, a rotating gear (13) is mounted inside the connecting frame (10) via a belt transfer mechanism, the upper surface of the slide plate (4) is mounted with a supporting base (17) via a lifting mechanism, the upper surface of the supporting base (17) is mounted with a connecting column (23) via a connecting mechanism, the outer surface of the connecting column (23) is mounted with a roller (29) via a supporting mechanism, and the outer surface of the connecting column (23) is mounted with a rotating member (33) via a self-rotating mechanism; The belt transfer mechanism comprises a rotating motor (11) fixedly mounted on the upper surface of the connecting frame (10), the rotating motor (11) movably penetrates the upper surface of the connecting frame (10), a welding plate (14) is fixedly mounted on the lower end of the rotating motor (11), and the welding plate (14) is fixedly mounted on the lower surface of a rotating gear (13), the rotating gear (13) drives the workpiece to rotate at a constant speed, and heat treatment is performed through a flame spray head (8); The drawer mechanism comprises a guide rail (2) fixedly mounted on the upper surface of the base plate (1), a slide rail (3) movably mounted in the guide rail (2), and the slide rail (3) is mounted on the lower surface of the slide plate (4); The fixing mechanism comprises a fixing frame (5) fixedly mounted on the upper surface of the bottom plate (1), and the fixing frame (5) is mounted on the front side of the slide plate (4); a fixing plate (6) is fixedly mounted on the inner surface of the upper end of the fixing frame (5); an air guide tube (21) is fixedly mounted on the inner surface of the fixing plate (6); the flame head (8) is fixedly mounted on the rear end of the air guide tube (21); and a connector (7) is fixedly mounted on the front end of the air guide tube (21); The raising mechanism comprises a supporting frame (9) fixedly mounted on the upper surface of the slide plate (4), a supporting plate (12) fixedly mounted on the upper surface of the slide plate (4), and the supporting plate (12) fixedly mounted on the inner surface of the supporting frame (9), and the connecting frame (10) fixedly mounted on the upper surface of the supporting frame (9); The lifting mechanism comprises a vertical telescopic cylinder (15) fixedly mounted on the upper surface of the slide plate (4), and the vertical telescopic cylinder (15) is fixedly mounted on the lower surface of the support base (17); a vertical guide cylinder (19) is fixedly mounted on the upper surface of the slide plate (4), a vertical guide rod (20) is movably mounted on the inner surface of the vertical guide cylinder (19), and the vertical guide rod (20) is fixedly mounted on the lower surface of the support base (17); The connection mechanism comprises a fixing column (22) fixedly mounted on the upper surface of the support base (17), four height-increasing components (18) fixedly mounted on the upper surface of the support base (17), and the height-increasing components (18) are mounted around the fixing column (22), and the fixing column (22) is fixedly mounted on the lower surface of the connection column (23); The support mechanism comprises two transverse telescopic cylinders (26) fixedly mounted on the outer surface of a connecting column (23), two transverse guide cylinders (24) fixedly mounted on the outer surface of the connecting column (23), and the transverse guide cylinders (24) are mounted below the transverse telescopic cylinders (26), a transverse guide rod (25) is movably mounted in each of the transverse guide cylinders (24), a concave member (28) is fixedly mounted on the outer side of the transverse guide rod (25), and the concave member (28) is fixedly mounted on the outer side of the transverse telescopic cylinder (26), and the roller (29) is movably mounted on the inner surface of the concave member (28); The self-rotating mechanism comprises a fixed base (30) fixedly mounted on the upper surface of the height-increasing member (18), a fixed groove (31) being provided inside the fixed base (30), and the connecting column (23) being fixedly mounted on the inner surface of the fixed groove (31), a fixed member (32) being fixedly mounted on the upper surface of the fixed base (30), a rotating member (33) being movably mounted inside the fixed member (32), a rotating groove (34) being provided on the lower surface of the rotating member (33), and the fixed member (32) being movably mounted in the rotating groove (34), a plurality of rolling grooves (35) being provided on the lower surface of the rotating member (33), a ball (36) being movably mounted on the inner surface of the rolling groove (35), and the ball (36) being movably mounted on the upper surface of the fixed base (30), and a sealing plate (37) being fixedly mounted on the lower surface of the rotating member (33), and the sealing plate (37) being movably mounted on the outer surface of the ball (36).

2. A method for heat treatment of a metal workpiece, using the device according to claim 1, characterized in that: The following steps are involved: S1, fixing the metal gear (38) through a supporting mechanism and a rotating member (33); S2, placing the metal gear (38) in mesh with the rotating gear (13), and realizing the self-rotation of the metal gear (38) through the belt transfer mechanism; S3, adjusting the height of the metal gear (38) by means of a lifting mechanism; S4, moving the metal gear (38) laterally by means of a pulling mechanism; S5. Heat treatment is performed on the metal gear (38) by using a flame jet (8).

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