阅读说明：本技术 一种锁紧件局部渗碳工艺 (Local carburizing process for locking piece ) 是由 冯华卫 于 2021-08-25 设计创作，主要内容包括：本发明提供了一种锁紧件局部渗碳工艺,包括以下步骤,步骤一,前期处理,对工件表面的油污进行清洗,将清洗后的工件进行烘干待用；步骤二,通过涂刷装置对工件不需要渗碳的工件表面进行涂刷防渗涂料,并对涂刷后的工件进行烘干处理；步骤三,将步骤二中处理后的工件放置在网带渗碳炉中进行渗碳加工,并将表面的涂料清除；步骤四,清除完表面的涂料之后,对工件进行淬火热处理；步骤五,淬火完成后,对工件表面进行除盐处理；步骤六,对工件进行除盐处理之后,需要在工件表面进行涂刷防锈涂料；步骤七,最后对工件进行清洗烘干,本发明具有方便了操作者对工件进行渗碳工艺,提高了工件渗碳均匀性的优点。(The invention provides a local carburizing process for a locking piece, which comprises the following steps of firstly, performing early treatment, cleaning oil stains on the surface of a workpiece, and drying the cleaned workpiece for later use; coating the anti-seepage coating on the surface of the workpiece which does not need to be carburized by a coating device, and drying the coated workpiece; step three, putting the workpiece processed in the step two into a mesh belt carburizing furnace for carburizing, and removing the coating on the surface; step four, after removing the coating on the surface, carrying out quenching heat treatment on the workpiece; step five, after quenching is finished, desalting the surface of the workpiece; sixthly, after the workpiece is subjected to desalting treatment, coating antirust paint on the surface of the workpiece; and step seven, finally, cleaning and drying the workpiece, and the method has the advantages of facilitating an operator to carry out a carburizing process on the workpiece and improving the carburizing uniformity of the workpiece.)

1. A local carburizing process for a locking piece is characterized in that: comprises the following steps of (a) carrying out,

firstly, performing early treatment, namely cleaning oil stains on the surface of a workpiece, and drying the cleaned workpiece for later use;

coating the anti-seepage coating on the surface of the workpiece which does not need to be carburized by a coating device, and drying the coated workpiece;

step three, putting the workpiece processed in the step two into a mesh belt carburizing furnace for carburizing, and removing the coating on the surface;

step four, after removing the coating on the surface, carrying out quenching heat treatment on the workpiece;

step five, after quenching is finished, desalting the surface of the workpiece;

sixthly, after the workpiece is subjected to desalting treatment, coating antirust paint on the surface of the workpiece;

and step seven, finally, cleaning and drying the workpiece.

2. The local carburizing process for the locking piece according to claim 1, characterized in that the mesh belt carburizing furnace comprises a support (1), a rotating roller (2) is rotatably connected between the inner walls of the two sides of the two ends of the support (1), a conveying mesh belt (3) is wound between the two rotating rollers (2), a driving motor (4) for driving the rotating roller (2) to rotate is fixedly connected to the support (1), the local carburizing process for the locking piece is characterized in that a furnace body (5) is arranged on the upper surface of the support (1), a plurality of mounting grooves (6) are formed in the conveying mesh belt (3) along the length direction of the conveying mesh belt (3), the mounting grooves (6) are formed in the length direction of the conveying mesh belt (3), a mounting plate (7) is arranged on the inner wall of the mounting groove (6), a plurality of through holes (8) are formed in the mounting plate (7), fixedly connected with connecting plate (9) on through-hole (8) inner wall, a plurality of through hole (10) have been seted up to the interval is even on connecting plate (9) it places pole (11) to slide on through hole (10) inner wall, is equipped with between placing pole (11) outer wall and through hole (10) inner wall to be used for the location to place positioning mechanism (12) of the position of pole (11) in through hole (10) be equipped with on live-rollers (2) and be used for conveniently placing canceling release mechanical system (13) that pole (11) reset.

3. A retaining member partial carburization process according to claim 2, characterized in that said positioning mechanism (12) comprises a plurality of first grooves (14) formed along the outer wall of the placing rod (11) at the upper end of the outer wall of the placing rod (11), a plurality of second grooves (15) formed along the outer wall of the placing rod (11) at the outer wall of the placing rod (11), first positioning blocks (16) slidably coupled in the first grooves (14), second positioning blocks (17) slidably coupled in the second grooves (15), first guide surfaces (18) formed on the upper and lower surfaces of the end of the first positioning blocks (16) far from the first grooves (14), second guide surfaces (19) formed on the upper and lower surfaces of the end of the second positioning blocks (17) far from the second grooves (15), first springs (20) disposed in the first grooves (14), second springs (21) disposed in the second grooves (15), and mounting plates (7) for preventing the placing rod (11) from coming off From anticreep piece (22) of through hole (10), the both ends of first spring (20) are on first groove (14) tank bottom of fixed connection and first locating piece (16) respectively, and the both ends of second spring (21) are fixed connection respectively on second groove (15) tank bottom and second locating piece (17), setting about first groove (14) and second groove (15) are, the one end of first spigot surface (18) is located first groove (14), the one end of second spigot surface (19) is located second groove (15).

4. The local carburizing process for the locking piece according to claim 3, wherein the anti-dropping part (22) comprises anti-dropping holes (23) formed in the upper surfaces of the two ends of the mounting plate (7), anti-dropping rods (24) slidably connected to the inner walls of the anti-dropping holes (23), and anti-dropping plates (25) fixedly connected to the end surfaces of the lower ends of the anti-dropping rods (24), and the anti-dropping plates (25) are arranged in parallel with the mounting plate (7).

5. A partial carburization process for a retaining member according to claim 4, characterized in that a retaining nut (26) is screwed onto the outer wall of said retaining bar (24), said retaining nut (26) abutting against the upper surface of the mounting plate (7).

6. A retaining member partial carburization process according to claim 5, characterized in that said returning means (13) comprises a circumferential groove (27) provided on the outer wall of the rotating roller (2), a returning roller (28) rotatably connected between the inner walls of the two sides of the support (1), said circumferential groove (27) having a length greater than the length of the mounting plate (7).

7. A local carburization process for locking parts according to claim 6, characterized in that a connection mechanism (29) is arranged between the conveying net belt (3) and the mounting plate (7), the connection mechanism (29) comprises a connection groove (30) formed on the side wall of the mounting plate (7), a connection groove (31) formed on the lower surface of the mounting plate (7), a connection rod (32) fixedly connected to the inner walls of both sides of the connection groove (31), a connection wheel (33) eccentrically and rotatably connected to the outer wall of the connection rod (32), and a connection piece (34) fixedly connected to the outer wall of the connection wheel (33), one side of the connection groove (30) is communicated with the outside, one end of the connection groove (31) is communicated with the connection groove (30), and the inner wall of the connection groove (30) is abutted to the inner wall of the mounting groove (6).

8. The local carburizing process for the locking member according to claim 7, characterized in that a connecting hole (35) is formed in the lower surface of the mounting plate (7), a locking hole (36) is formed in the inner wall of the connecting hole (35), the locking hole (36) is communicated with the connecting groove (31), a connecting rod (37) is rotatably connected in the connecting hole (35), a locking rod (38) is fixedly connected to the outer wall of the connecting rod (37), a locking groove (39) is formed in the outer wall of the connecting wheel (33), and one end of the locking rod (38) is embedded in the locking groove (39) after being rotated.

Technical Field

The invention belongs to the technical field of carburizing processes, and particularly relates to a local carburizing process for a locking piece.

Background

Carburization refers to the process of infiltrating carbon atoms into the surface layer of the steel. The low-carbon steel workpiece is provided with a surface layer of high-carbon steel, and the surface layer of the workpiece is subjected to quenching and low-temperature tempering to have high hardness and wear resistance, while the central part of the workpiece still maintains the toughness and plasticity of the low-carbon steel. At present, the commonly adopted carburizing modes are gas carburizing, vacuum carburizing, plasma carburizing and the like.

One device in gas carburizing is a mesh belt carburizing furnace, which is a tool for heating and insulating a workpiece for a long time to enable carbon elements to permeate into the surface of the workpiece, and a layer of carbon elements is attached to the surface of the workpiece treated by the carburizing furnace to enable the workpiece to have higher hardness and wear resistance.

In the use process of the existing mesh belt carburizing furnace, a workpiece is placed on a conveying mesh belt, so that the carburizing of the part of the workpiece, which is contacted with the conveying mesh belt, is not uniform.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a local carburizing process for a locking piece, and has the characteristics of facilitating an operator to perform the carburizing process on a workpiece and improving the carburizing uniformity of the workpiece.

The purpose of the invention can be realized by the following technical scheme:

a local carburizing process for a locking piece comprises the following steps,

firstly, performing early treatment, namely cleaning oil stains on the surface of a workpiece, and drying the cleaned workpiece for later use;

coating the anti-seepage coating on the surface of the workpiece which does not need to be carburized by a coating device, and drying the coated workpiece;

step three, putting the workpiece processed in the step two into a mesh belt carburizing furnace for carburizing, and removing the coating on the surface;

step four, after removing the coating on the surface, carrying out quenching heat treatment on the workpiece;

step five, after quenching is finished, desalting the surface of the workpiece;

sixthly, after the workpiece is subjected to desalting treatment, coating antirust paint on the surface of the workpiece;

and step seven, finally, cleaning and drying the workpiece.

Furthermore, the mesh belt carburizing furnace comprises a support, a rotating roller is rotatably connected between the inner walls of two sides at two ends of the support, a conveying mesh belt is wound between the two rotating rollers, a driving motor for driving the rotating roller to rotate is fixedly connected to the support, the mesh belt carburizing furnace is characterized in that a furnace body is arranged on the upper surface of the support, a plurality of mounting grooves are formed in the conveying mesh belt along the length direction of the conveying mesh belt, the mounting grooves are formed in the length direction of the conveying mesh belt, a mounting plate is mounted on the inner wall of each mounting groove, a plurality of through holes are formed in the mounting plate, a connecting plate is fixedly connected to the inner wall of each through hole, a plurality of through holes are uniformly formed in the connecting plate at intervals, a placing rod slides on the inner wall of each through hole, and a positioning mechanism for positioning the position of the placing rod in the through hole is arranged between the outer wall of the placing rod and the inner wall of the through hole, and the rotating roller is provided with a reset mechanism which is used for conveniently placing the rod for resetting.

Furthermore, the positioning mechanism comprises a plurality of first grooves which are arranged at the upper end of the outer wall of the placing rod along the circumferential direction of the outer wall of the placing rod, a plurality of second grooves which are arranged on the outer wall of the placing rod along the circumferential direction of the outer wall of the placing rod, a first positioning block which is connected in the first grooves in a sliding manner, a second positioning block which is connected in the second grooves in a sliding manner, a first guide surface which is arranged on the upper surface and the lower surface of one end of the first positioning block, which is far away from the first grooves, a second guide surface which is arranged on the upper surface and the lower surface of one end of the second positioning block, which is far away from the second grooves, a first spring which is arranged in the first grooves, a second spring which is arranged in the second grooves and an anti-falling part which is arranged on the mounting plate and used for preventing the placing rod from falling off the through hole, wherein two ends of the first spring are respectively and fixedly connected with the bottom of the first grooves and the first positioning block, and two ends of the second spring are respectively and fixedly connected with the bottom of the second positioning block, the first groove and the second groove are arranged up and down, one end of the first guide surface is positioned in the first groove, and one end of the second guide surface is positioned in the second groove.

Further, anticreep piece is including seting up anticreep hole, the anticreep pole of sliding connection on the anticreep downthehole wall, the anticreep board of fixed connection on anticreep pole lower extreme terminal surface on the mounting panel both ends upper surface, the anticreep board is parallel arrangement with the mounting panel.

Furthermore, a positioning nut is connected to the outer wall of the anti-falling rod in a threaded manner and abuts against the upper surface of the mounting plate.

Further, canceling release mechanical system is including offering annular, the rotation of rotating on the live-rollers outer wall and connecting the reset roller between support both sides inner wall, the length of annular is greater than the length of mounting panel.

Further, be equipped with a coupling mechanism between conveying mesh belt and the mounting panel, coupling mechanism is including seting up spread groove on the mounting panel lateral wall, seting up even groove on the mounting panel lower surface, fixed connection is at the connecting rod on even groove both sides inner wall, eccentric connecting wheel and the connection piece of fixed connection on the connecting rod outer wall of rotating connection on the connecting rod outer wall, spread groove one side and external intercommunication, even groove one end and spread groove intercommunication, spread groove inner wall butt is on the mounting groove inner wall.

Further, a connecting hole has been seted up on the mounting panel lower surface a locking hole has been seted up on the connecting hole inner wall, locking hole and linking groove intercommunication there is a connecting rod to rotate in the connecting hole a locking lever of fixedly connected with on the connecting rod outer wall a locking groove has been seted up on the fifth wheel outer wall, the one end of locking lever inlays after rotating and establishes in the locking groove.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the workpiece is placed on the placing rods, the placing rods slide downwards, and the workpiece is clamped between the placing rods.

2. According to the invention, the mounting plate is connected in the mounting hole through the connecting groove, the connecting piece drives the connecting wheel to rotate, and the connecting piece is shielded below the conveying net belt.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of a connection structure between the placement rod and the mounting plate in the present invention.

Fig. 3 is an enlarged view a of fig. 2.

Fig. 4 is a schematic view of the construction of the separation preventing member of the present invention.

Fig. 5 is a schematic view of the structure of the connection mechanism of the present invention.

In the figure, 1, a bracket; 2. a rotating roller; 3. a conveying mesh belt; 4. a drive motor; 5. a furnace body; 6. mounting grooves; 7. mounting a plate; 8. a through hole; 9. a connecting plate; 10. a through hole; 11. placing a rod; 12. a positioning mechanism; 13. a reset mechanism; 14. a first groove; 15. A second groove; 16. a first positioning block; 17. a second positioning block; 18. a first guide surface; 19. a second guide surface; 20. a first spring; 21. a second spring; 22. a drop-off prevention member; 23. anti-drop holes; 24. an anti-drop rod; 25. an anti-drop plate; 26. positioning a nut; 27. a ring groove; 28. a reset roller; 29. a connecting mechanism; 30. connecting grooves; 31. connecting the grooves; 32. a connecting rod; 33. a connecting wheel; 34. connecting sheets; 35. connecting holes; 36. a locking hole; 37. A connecting rod; 38. a lock lever; 39. and (4) locking the groove.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, a partial carburizing process for a retaining member includes the steps of,

firstly, performing early treatment, namely cleaning oil stains on the surface of a workpiece, and drying the cleaned workpiece for later use;

coating the anti-seepage coating on the surface of the workpiece which does not need to be carburized by a coating device, and drying the coated workpiece;

step three, putting the workpiece processed in the step two into a mesh belt carburizing furnace for carburizing, and removing the coating on the surface;

step four, after removing the coating on the surface, carrying out quenching heat treatment on the workpiece;

step five, after quenching is finished, desalting the surface of the workpiece;

sixthly, after the workpiece is subjected to desalting treatment, coating antirust paint on the surface of the workpiece;

and step seven, finally, cleaning and drying the workpiece.

As shown in fig. 1, the mesh belt carburizing furnace comprises a support 1, a rotating roller 2 is rotatably connected between the inner walls of two sides of two ends of the support 1, a conveying mesh belt 3 is wound between the two rotating rollers 2, a driving motor 4 for driving the rotating roller 2 to rotate is fixedly connected to the support 1, and a furnace body 5 is arranged on the upper surface of the support 1.

As shown in fig. 1, fig. 2 and fig. 3, a plurality of mounting grooves 6 are formed in the conveying mesh belt 3 along the length direction of the conveying mesh belt 3, the mounting grooves 6 are formed in the width direction of the conveying mesh belt 3, a mounting plate 7 is mounted in the mounting grooves 6, a plurality of through holes 8 are formed in the mounting plate 7, a connecting plate 9 is fixedly connected to the inner wall of each through hole 8, a plurality of through holes 10 are uniformly formed in the connecting plate 9 at intervals, a placing rod 11 is slidably connected to the inner wall of each through hole 10, and a positioning mechanism 12 for positioning the position of the placing rod 11 in each through hole 10 is arranged between the outer wall of the placing rod 11 and the inner wall of each through hole 10.

As shown in fig. 2, 3 and 4, the positioning mechanism 12 includes a first groove 14, a second groove 15, a first positioning block 16, a second positioning block 17, a first guide surface 18, a second guide surface 19, a first spring 20, a second spring 21 and an anti-falling member 22, the first groove 14 is formed on the outer wall of the placing rod 11, a plurality of first grooves 14 are formed along the circumferential direction of the outer wall of the placing rod 11, the first positioning block 16 is slidably connected in the first groove 14, the first guide surface 18 is formed on the upper and lower surfaces of the end of the first positioning block 16 far away from the first groove 14, one end of the first guide surface 18 is located in the first groove 14, the first spring 20 is arranged in the first groove 14, two ends of the first spring 20 are respectively fixedly connected to the bottom of the first groove 14 and the end surface of the first positioning block 16, the second groove 15 is formed on the outer wall of the placing rod 11, a plurality of second grooves 15 are formed along the circumferential direction of the outer wall of the placing rod 11, first groove 14 and second groove 15 are upper and lower setting, second locating piece 17 sliding connection is in second groove 15, second spigot surface 19 sets up on the one end upper and lower surface of second locating piece 17 keeping away from second groove 15, second spigot surface 19 one end is located second groove 15, second spring 21 sets up in second groove 15, the both ends of second spring 21 are fixed connection respectively on second groove 15 tank bottom and second locating piece 17 one end terminal surface, connecting plate 9 joint is between first locating piece 16 and second locating piece 17, anticreep piece 22 sets up on mounting panel 7, anticreep piece 22 is used for preventing to place pole 11 and breaks away from through hole 10.

As shown in fig. 4, the anti-separation member 22 includes an anti-separation hole 23, an anti-separation rod 24, and an anti-separation plate 25, the anti-separation hole 23 is opened on the mounting plate 7, the anti-separation holes 23 are opened at both ends of the mounting plate 7, the anti-separation rod 24 is slidably connected in the anti-separation hole 23, the anti-separation plate 25 is fixedly connected on the lower end face of the anti-separation rod 24, a positioning nut 26 is threadedly connected on the outer wall of the upper end of the anti-separation rod 24, and the positioning nut 26 abuts against the upper surface of the mounting plate 7.

As shown in fig. 1, the reset mechanism 13 for conveniently placing the rod 11 to reset is arranged on the rotating rod, the reset mechanism 13 comprises a ring groove 27 and a reset roller 28, the ring groove 27 is formed in the outer wall of the rotating roller 2, the length of the ring groove 27 is larger than that of the mounting plate 7, and the reset roller 28 is rotatably connected to the inner walls of the two sides of the support 1.

As shown in fig. 1 and 5, in order to facilitate the installation and the detachment of the mounting plate 7 by an operator, a connection mechanism 29 is arranged between the conveying net belt 3 and the mounting plate 7, the connection mechanism 29 comprises a connection groove 30, a connection groove 31, a connection rod 32, a connection wheel 33 and a connection piece 34, the connection groove 30 is arranged on the side wall of the mounting plate 7, one side of the connection groove 30 is communicated with the outside, the bottom of the connection groove 30 abuts against the inner wall of the mounting groove 6, grain and grass is arranged on the lower surface of the mounting plate 7, the connection groove 31 is communicated with the connection groove 30, the connection rod 32 is fixedly connected on the inner walls of two sides of the connection groove 31, the connection wheel 33 is eccentrically and rotatably connected outside the connection rod 32, the connection piece 34 is fixedly connected on the outer wall of the connection wheel 33, and the connection piece 34 is tangent to the outer wall of the connection wheel 33.

As shown in fig. 5, in order to improve the stability of the connecting wheel 33 abutting against the inner wall of the connecting groove 31, a connecting hole 35 is formed on the lower surface of the mounting plate 7, a locking hole 36 is formed on the inner wall of the connecting hole 35, the locking hole 36 is communicated with the connecting groove 31, a connecting rod 37 is rotatably connected in the connecting hole 35, a locking rod 38 is fixedly connected on the outer wall of the connecting rod 37, the locking rod 38 is rotatably connected in the locking hole 36, a locking groove 39 is formed on the outer wall of the connecting wheel 33, and the locking rod 38 is embedded in the locking groove 39 after rotating in the locking hole 36.

The working principle of the embodiment of the invention is as follows: the workpiece is placed on the placing rod 11, the placing rod 11 moves downwards, the workpiece is clamped between the placing rods 11, the driving motor 4 drives the conveying net belt 3 to move, the conveying net belt 3 drives the workpiece to enter the furnace body 5, the workpiece is subjected to a carburizing process in the furnace body 5, after the workpiece comes out of the furnace body 5, the anti-separation plate 25 moves upwards under the action of the guide wheel and the ring groove 27, the anti-separation plate 25 drives the placing rod 11 to move upwards, and the workpiece is separated from the placing rod 11 and falls on the conveying net belt 3 after the placing rod 11 moves upwards.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, the stent is used more herein; 2. a rotating roller; 3. a conveying mesh belt; 4. A drive motor; 5. a furnace body; 6. mounting grooves; 7. mounting a plate; 8. a through hole; 9. a connecting plate; 10. a through hole; 11. placing a rod; 12. a positioning mechanism; 13. a reset mechanism; 14. a first groove; 15. a second groove; 16. a first positioning block; 17. a second positioning block; 18. a first guide surface; 19. a second guide surface; 20. a first spring; 21. a second spring; 22. a drop-off prevention member; 23. anti-drop holes; 24. an anti-drop rod; 25. an anti-drop plate; 26. Positioning a nut; 27. a ring groove; 28. a reset roller; 29. a connecting mechanism; 30. connecting grooves; 31. connecting the grooves; 32. a connecting rod; 33. a connecting wheel; 34. connecting sheets; 35. connecting holes; 36. a locking hole; 37. a connecting rod; 38. a lock lever; 39. locking grooves, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.