WO2022166127A1

WO2022166127A1 - Ion nitriding device and ion nitriding process for vehicle wheel hub mold

Info

Publication number: WO2022166127A1
Application number: PCT/CN2021/108208
Authority: WO
Inventors: 张陈; 陈克英; 任士培; 陈奕
Original assignee: 安徽恒意硬面工程股份有限公司
Priority date: 2021-02-04
Filing date: 2021-07-23
Publication date: 2022-08-11
Also published as: CN112981311A

Abstract

The present invention relates to the technical field of hub mold production, and disclosed are an ion nitriding device for a vehicle wheel hub mold. The ion nitriding device comprises a bottom plate; a same nitriding box is fixedly connected to the upper end of the bottom plate by means of a plurality of symmetrically-disposed supporting columns; two electric sliding rails are symmetrically and fixedly connected to the upper end of the bottom plate; electric push rods are fixedly connected to the upper ends of sliding blocks in the electric sliding rails; transverse plates are fixedly connected to output shafts of the upper ends of the electric push rods; a same box cover pressed onto and connected to the upper end of the nitriding box is fixedly connected to the lower ends of the two transverse plates; a rotating motor is fixedly provided at the upper end of the box cover; a lower end output shaft of the rotating motor passes through the lower end of the box cover and a mounting plate is fixedly connected to the lower end output shaft; two support plates are fixedly connected inside the nitriding box in a bilaterally symmetric manner; and first nitrogen generators and vertical rods are fixedly provided at the upper ends of the support plates. The ion nitriding device and the ion nitriding process for a vehicle wheel hub mold have the advantage that a hub mold can be subjected to rapid and all-around nitriding treatment.

Description

Wheel hub mold ion nitriding device and ion nitriding process

technical field

The invention relates to the technical field of wheel hub mould production, in particular to a wheel hub mould ion nitriding device and an ion nitriding process.

Background technique

Nitriding treatment refers to a chemical heat treatment process in which nitrogen atoms penetrate into the surface of the workpiece in a certain medium at a certain temperature. Nitrided products have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance. Among them, ion nitriding, as a chemical heat treatment method to strengthen the metal surface, is widely used in cast iron, carbon steel, alloy steel, stainless steel and titanium alloy. After the parts are treated by ion nitriding, the hardness of the material surface can be significantly improved, so that it has high wear resistance, fatigue strength, corrosion resistance and burn resistance. Compared with gas nitriding, ion nitriding has the advantages of fast nitriding speed, easy control of nitriding layer structure, low brittleness, no environmental pollution, energy saving, gas source and small deformation. Etc.

At present, when nitriding the wheel hub mold, the fixed structure is not easy to adjust, and the mold cannot be quickly nitrided in all aspects, which affects the nitriding efficiency and causes high cost.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides an ion nitriding device and an ion nitriding process for a wheel hub mold, which have the advantages of being able to perform rapid and comprehensive nitriding treatment on the wheel hub mold, and solve the problem of nitriding the wheel hub mold at present. During processing and the structure is fixed, it is inconvenient to adjust, and the mold cannot be quickly nitrided in all aspects, which affects the nitriding efficiency and causes the problem of high cost.

(2) Technical solutions

In order to realize the purpose of being able to carry out rapid and all-round nitriding treatment on the wheel hub mold, the present invention provides the following technical solution: the wheel hub mold ion nitriding device includes a base plate, and the upper end of the base plate is fixedly connected by a plurality of symmetrically arranged support columns There is the same nitriding box, the upper end of the bottom plate is symmetrically and fixedly connected with two electric sliding rails, the upper end of the slider in the electric sliding rail is fixedly connected with an electric push rod, and the output shaft of the upper end of the electric push rod is fixedly connected There are horizontal plates, the lower ends of the two horizontal plates are fixedly connected with the same box cover crimped on the upper end of the nitriding box, the upper end of the box cover is fixedly provided with a rotary motor, and the output shaft of the lower end of the rotary motor penetrates the box. The lower end of the cover is fixedly connected with a mounting plate, the inside of the nitriding box is fixedly connected with two supporting plates symmetrically and fixedly, and the upper end of the supporting plate is fixedly provided with a first nitrogen generator and a vertical pole, and the upper end of the vertical pole is fixedly arranged. The side wall is fixedly connected with a first nozzle with a trapezoidal structure, the inner side of the first nozzle is fixedly connected with a plurality of first nozzles, the bottom of the nitriding box is fixedly provided with a second nitrogen generator, the second The gas outlet of the nitrogen generator penetrates and extends into the nitriding box and is fixedly connected with a second nozzle, and the upper end of the second nozzle is fixedly connected with a plurality of second nozzles.

Preferably, the lower end of the box cover is fixedly connected with an annular sealing block, and the upper end of the nitriding box is provided with an annular sealing groove corresponding to the annular sealing block.

Preferably, a plurality of fixed shafts are symmetrically and fixedly connected to the outer side of the upper end of the nitriding box, a clamping plate is rotatably sleeved on the outer side of one end of the fixing shaft, and a clamping groove is formed on the upper end side wall of the clamping plate, so The outer side of the box cover is provided with a plurality of clamping blocks that are clamped with the card slots, the upper end of the clamping plate is provided with an insertion hole and a limit insertion rod is movably inserted in the insertion hole, and the upper end of the clamping block is provided with The limit insertion rod corresponds to the plugged limit slot, the upper end of the limit insertion rod is fixedly connected to the limit pull plate, and the lower end of the limit pull plate and the upper end of the clamping plate are fixedly connected with the same sleeve set on the upper end of the clamping plate. The limit spring outside the limit plunger.

Preferably, two rotating screws are connected symmetrically between the upper end of the bottom plate and the lower end of the nitriding box through ball bearings, the lower end rod wall of the rotating screws is fixedly sleeved with a driven bevel gear, and the center of the upper end of the bottom plate A biaxial motor is fixedly arranged at the place, the output shafts at both ends of the biaxial motor are fixedly connected to the rotating shaft, and one end of the rotating shaft is fixedly connected with a driving bevel gear that meshes with the driven bevel gear, and the rod wall thread of the rotating screw A lifting screw barrel is sleeved, and the same lifting plate is fixedly connected between the two lifting screw barrels. The upper end of the lifting plate is evenly and fixedly connected with a plurality of top pillars, and the upper end of the top pillar passes through the bottom of the nitriding box. The opened through holes penetrate into the nitriding box.

Preferably, two bearing seats are symmetrically and fixedly connected to the upper end of the bottom plate, and the bearing seats are rotatably sleeved outside the shaft wall of one end of the rotating shaft close to the driving bevel gear through a ball bearing.

Preferably, the upper end of the top column is provided with a ball groove, and the ball groove is fixedly installed with a universal ball through a ball installation mechanism.

The ion nitriding process of wheel hub mold includes the following steps:

S1. Install the wheel hub mold on the lower side of the mounting plate, start the electric push rod, and the electric push rod pushes the horizontal plate upward, so that the box cover drives the wheel hub mold to move up, and the electric slide rail drives the box cover to move so that the wheel hub mold moves to the nitriding position The upper side of the box, and then put the box cover down so that the wheel hub mold is placed in the nitriding box, the first nitrogen generator and the second nitrogen generator produce nitrogen, and pass the first nozzle, the first nozzle and the second nozzle Cooperate with the second nozzle to carry out fast and all-round nitriding treatment of the wheel hub mold;

S2. Start the rotary motor, and the rotary motor drives the wheel hub mold to rotate to achieve a full range of rapid nitriding treatment. During the nitriding process, start the biaxial motor. The biaxial motor drives the driving bevel gear to rotate through the rotary shaft. The meshing action of the moving bevel gear drives the two rotating screws to rotate synchronously, and then drives the lifting plate to move up and down through the threaded connection between the rotating screw and the lifting screw barrel, and then drives the multiple top columns to move up and down to firmly support the bottom of the wheel hub mold of different sizes. , making the placement more stable.

(3) Beneficial effects

Compared with the prior art, the present invention provides a wheel hub mold ion nitriding device and an ion nitriding process, which have the following beneficial effects:

1. The wheel hub mold ion nitriding device and ion nitriding process, by installing the wheel hub mold on the underside of the mounting plate, start the electric push rod, and the electric push rod pushes the horizontal plate upward, so that the box cover drives the wheel hub mold to move up , the electric slide rail drives the box cover to move so that the wheel hub mold moves to the upper side of the nitriding box, and then the box cover is lowered so that the wheel hub mold is placed in the nitriding box, and the first nitrogen generator and the second nitrogen generator produce nitrogen, And through the cooperation of the first nozzle, the first nozzle and the second nozzle and the second nozzle, the wheel hub mold is quickly and fully nitrided;

2. The wheel hub mold ion nitriding device and ion nitriding process start the rotating motor during nitriding, and the rotating motor drives the wheel hub mold to rotate to achieve a full range of rapid nitriding treatment. During the nitriding process, the double shaft is activated. Motor, biaxial motor drives the driving bevel gear to rotate through the rotating shaft, drives the two rotating screws to rotate synchronously through the meshing action of the driving bevel gear and the driven bevel gear, and then drives the lifting plate to move up and down through the threaded connection between the rotating screw and the lifting screw barrel. , and then drive a plurality of top columns to move up and down to stably support the bottom of the wheel hub molds of different sizes, so that the placement is more stable.

Description of drawings

1 is a schematic structural diagram of a wheel hub mold ion nitriding device and an ion nitriding process proposed by the present invention;

FIG. 2 is an enlarged view of the partial structure of part A in FIG. 1 of the wheel hub mold ion nitriding device and the ion nitriding process proposed by the present invention;

FIG. 3 is an enlarged view of the partial structure of part B in FIG. 1 of the wheel hub mold ion nitriding device and the ion nitriding process proposed by the present invention.

In the picture: 1 base plate, 2 support columns, 3 nitriding box, 4 electric slide rails, 5 electric push rods, 6 horizontal plates, 7 box covers, 8 rotating motors, 9 mounting plates, 10 pallets, 11 first nitrogen generation device, 12 vertical rod, 13 first nozzle, 14 first nozzle, 15 second nitrogen generator, 16 second nozzle, 17 second nozzle, 18 fixed shaft, 19 clamping plate, 20 card slot, 21 card Block, 22 limit plunger, 23 limit slot, 24 limit pull plate, 25 limit spring, 26 rotating screw, 27 driven bevel gear, 28 biaxial motor, 29 rotating shaft, 30 driving bevel gear, 31 lift Screw barrel, 32 lifting plates, 33 top columns.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-3, the wheel hub mold ion nitriding device includes a base plate 1, the upper end of the base plate 1 is fixedly connected to the same nitriding box 3 through a plurality of symmetrically arranged support columns 2, and the upper end of the base plate 1 is symmetrically and fixedly connected with a Two electric sliding rails 4, the upper end of the slider in the electric sliding rail 4 is fixedly connected with an electric push rod 5, the upper end output shaft of the electric push rod 5 is fixedly connected with a horizontal plate 6, and the lower ends of the two horizontal plates 6 are fixedly connected with the same. A box cover 7 crimped on the upper end of the nitriding box 3, the upper end of the box cover 7 is fixedly provided with a rotary motor 8, the lower end output shaft of the rotary motor 8 penetrates the lower end of the box cover 7 and is fixedly connected with a mounting plate 9, the nitriding box 3 is fixedly connected with two supporting plates 10 symmetrically left and right inside, the upper end of the supporting plate 10 is fixedly provided with a first nitrogen generator 11 and a vertical rod 12, and the side wall of the vertical rod 12 is fixedly connected with a first nozzle 13 of a trapezoidal structure. , the inner side of the first nozzle 13 is fixedly connected with a plurality of first nozzles 14, the bottom of the nitriding box 3 is fixedly provided with a second nitrogen generator 15, and the gas outlet of the second nitrogen generator 15 penetrates and extends into the nitriding box 3 A second nozzle 16 is fixedly connected inside and is fixedly connected with a plurality of second nozzles 17 at the upper end of the second nozzle 16 .

The lower end of the box cover 7 is fixedly connected with an annular sealing block, and the upper end of the nitriding box 3 is provided with an annular sealing groove corresponding to the annular sealing block.

The outer side of the upper end of the nitriding box 3 is symmetrically and fixedly connected with a plurality of fixed shafts 18. One end of the fixed shaft 18 is rotatably sleeved with a clamping plate 19. The upper end side wall of the clamping plate 19 is provided with a clamping groove 20. A plurality of card blocks 21 are provided on the outside to be clamped with the card slots 20. The upper end of the clamping plate 19 is provided with an insertion hole and a limit insertion rod 22 is movably inserted in the insertion hole. The rod 22 corresponds to the limit slot 23 that is plugged in, the upper end of the limit insertion rod 22 is fixedly connected to the limit pull plate 24, and the lower end of the limit pull plate 24 and the upper end of the clamping plate 19 are fixedly connected with the same sleeve set in the limit pull plate 24. Position the limit spring 25 outside the insertion rod 22 .

Two rotating screws 26 are symmetrically connected between the upper end of the base plate 1 and the lower end of the nitriding box 3 through ball bearings. The lower end rod wall of the rotating screw 26 is fixedly sleeved with a driven bevel gear 27. A biaxial motor 28 is provided, the output shafts at both ends of the biaxial motor 28 are fixedly connected to the rotating shaft 29, and one end of the rotating shaft 29 is fixedly connected with a driving bevel gear 30 that meshes with the driven bevel gear 27, and the rod wall thread sleeve of the rotating screw 26 is fixed. A lifting screw barrel 31 is connected, and the same lifting plate 32 is fixedly connected between the two lifting screw barrels 31. The upper end of the lifting plate 32 is evenly connected with a plurality of top posts 33, and the upper end of the top posts 33 passes through the bottom of the nitriding box 3. The opened through holes penetrate into the nitriding box 3 .

The upper end of the bottom plate 1 is symmetrically and fixedly connected with two bearing seats, and the bearing seats are rotatably sleeved outside the shaft wall of one end of the rotating shaft 29 close to the driving bevel gear 30 through ball bearings.

The upper end of the top column 33 is provided with a ball groove, and a universal ball is fixedly installed in the ball groove through a ball installation mechanism.

The ion nitriding process of wheel hub mold includes the following steps:

S1. Install the wheel hub mold on the lower side of the mounting plate 9, start the electric push rod 5, and the electric push rod 5 pushes the horizontal plate 6 upward, so that the box cover 7 drives the wheel hub mold to move up, and the electric slide rail 4 drives the box cover 7 to move. The wheel hub mold is moved to the upper side of the nitriding box 3, and then the box cover 7 is put down so that the wheel hub mold is placed in the nitriding box 3, the first nitrogen generator 11 and the second nitrogen generator 15 produce nitrogen, and pass through the first nitrogen generator 11 and the second nitrogen generator 15. The cooperation of the first nozzle 13, the first nozzle 14, the second nozzle 16 and the second nozzle 17 performs rapid and all-round nitriding treatment on the wheel hub mold;

S2. Start the rotary motor 8, and the rotary motor drives the wheel hub mold to rotate to realize a full range of rapid nitriding treatment. During the nitriding process, start the biaxial motor 28, and the biaxial motor 28 drives the driving bevel gear 30 to rotate through the rotary shaft 29. The meshing action of the driving bevel gear 30 and the driven bevel gear 17 drives the two rotating screws 26 to rotate synchronously, and then drives the lifting plate 32 to move up and down through the threaded connection between the rotating screw 26 and the lifting screw barrel 31 , thereby driving a plurality of top posts 33 Moving up and down firmly supports the bottom of the wheel hub molds of different sizes, making the placement more stable.

To sum up, in the wheel hub mold ion nitriding device and ion nitriding process, the wheel hub mold is installed on the lower side of the mounting plate 9, the electric push rod 5 is activated, and the electric push rod 5 pushes the horizontal plate 6 upward, so that the box The cover 7 drives the wheel hub mold to move up, the electric slide rail 4 drives the box cover 7 to move so that the wheel hub mold moves to the upper side of the nitriding box 3, and then the box cover 7 is put down so that the wheel hub mold is placed in the nitriding box 3. The nitrogen generator 11 and the second nitrogen generator 15 produce nitrogen, and through the cooperation of the first nozzle 13, the first nozzle 14, the second nozzle 16 and the second nozzle 17, the wheel hub mold is quickly and fully nitrided. ; Start the rotary motor 8, and the rotary motor drives the wheel hub mold to rotate to achieve a full range of rapid nitriding treatment. During the nitriding process, the biaxial motor 28 is activated, and the biaxial motor 28 drives the driving bevel gear 30 to rotate through the rotary shaft 29. The meshing action of the bevel gear 30 and the driven bevel gear 17 drives the two rotating screws 26 to rotate synchronously, and then drives the lifting plate 32 to move up and down through the threaded connection between the rotating screw 26 and the lifting screw barrel 31, thereby driving a plurality of top posts 33 up and down The movement firmly supports the bottom of the wheel hub molds of different sizes, making the placement more stable.

It should be noted that the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a series of elements includes not only those elements, but also no Other elements expressly listed, or which are also inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

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

Claims

The wheel hub mold ion nitriding device comprises a bottom plate (1), characterized in that: the upper end of the bottom plate (1) is fixedly connected with the same nitriding box (3) through a plurality of symmetrically arranged support columns (2), so Two electric sliding rails (4) are symmetrically and fixedly connected to the upper end of the bottom plate (1), and an electric push rod (5) is fixedly connected to the upper end of the slider in the electric sliding rail (4). ) upper output shaft is fixedly connected with a horizontal plate (6), and the lower ends of the two horizontal plates (6) are fixedly connected with the same box cover (7) crimped on the upper end of the nitriding box (3). The upper end of the cover (7) is fixedly provided with a rotary motor (8), the lower end output shaft of the rotary motor (8) penetrates the lower end of the box cover (7) and is fixedly connected with a mounting plate (9), the nitriding box ( 3) Two supporting plates (10) are fixedly connected to the left and right symmetrically inside, and the upper end of the supporting plate (10) is fixedly provided with a first nitrogen generator (11) and a vertical rod (12), the vertical rod (12) ) is fixedly connected with a first nozzle (13) of a trapezoidal structure, and the inner side of the first nozzle (13) is fixedly connected with a plurality of first nozzles (14). A second nitrogen generator (15) is fixedly arranged at the bottom, and the gas outlet of the second nitrogen generator (15) penetrates into the nitriding box (3) and is fixedly connected with a second nozzle (16). The upper end of the second spray pipe (16) is fixedly connected with a plurality of second spray heads (17).
The wheel hub mold ion nitriding device according to claim 1, characterized in that: the lower end of the box cover (7) is fixedly connected with an annular sealing block, and the upper end of the nitriding box (3) is provided with an annular sealing block. The blocks correspond to the plug-in annular sealing grooves.
The wheel hub mold ion nitriding device according to claim 1, characterized in that: a plurality of fixed shafts (18) are symmetrically and fixedly connected to the outer side of the upper end of the nitriding box (3), and the fixed shafts (18) are A clamping plate (19) is rotatably sleeved on the outer side of one end, the upper end side wall of the clamping plate (19) is provided with a clamping groove (20), and the outer side of the box cover (7) is provided with a plurality of clamping grooves ( 20) A clamped block (21), the upper end of the clamping plate (19) is provided with an insertion hole and a limit insertion rod (22) is movably inserted in the insertion hole, and the upper end of the clamped block (21) is provided with a hole There is a limit slot (23) corresponding to the limit insertion rod (22), the upper end of the limit insertion rod (22) is fixedly connected with a limit pull plate (24), and the limit pull plate (24) The lower end of the ) and the upper end of the clamping plate (19) are fixedly connected with the same limit spring (25) sleeved outside the limit insertion rod (22).
The wheel hub mold ion nitriding device according to claim 1, characterized in that: two rotating screws ( 26), the lower end rod wall of the rotating screw (26) is fixedly sleeved with a driven bevel gear (27), and a biaxial motor (28) is fixedly arranged at the center of the upper end of the bottom plate (1). Both output shafts of the motor (28) are fixedly connected to a rotating shaft (29), and one end of the rotating shaft (29) is fixedly connected with a driving bevel gear (30) meshing with the driven bevel gear (27), and the rotating screw ( 26) The rod wall is threadedly sleeved with a lifting screw barrel (31), and the same lifting plate (32) is fixedly connected between the two lifting screw barrels (31), and the upper end of the lifting plate (32) is evenly fixed A plurality of top posts (33) are connected, and the upper ends of the top posts (33) penetrate into the nitriding box (3) through the through holes opened at the bottom of the nitriding box (3).
The wheel hub mold ion nitriding device according to claim 4, characterized in that: the upper end of the bottom plate (1) is symmetrically and fixedly connected with two bearing seats, and the bearing seats are rotatably sleeved on the rotating shaft (29) through ball bearings. Close to one end of the drive bevel gear (30) outside the shaft wall.
The wheel hub mold ion nitriding device according to claim 4, characterized in that: the upper end of the top column (33) is provided with a ball groove, and the ball groove is fixedly installed with a universal ball through a ball mounting mechanism.
The ion nitriding process of wheel hub mould is characterized in that: comprising the following steps:

S1. Install the wheel hub mold on the lower side of the mounting plate (9), start the electric push rod (5), and the electric push rod (5) pushes the horizontal plate (6) upward, so that the box cover (7) drives the wheel hub mold to move up , the electric slide rail (4) drives the box cover (7) to move so that the wheel hub mold moves to the upper side of the nitriding box (3), and then the box cover (7) is put down so that the wheel hub mold is placed in the nitriding box (3) , the first nitrogen generator (11) and the second nitrogen generator (15) produce nitrogen, and pass through the first nozzle (13), the first nozzle (14) and the second nozzle (16) and the second nozzle ( 17) The cooperation of the wheel hub mold is fast and all-round nitriding treatment;

S2. Start the rotary motor (8), and the rotary motor drives the wheel hub mold to rotate to realize a full range of rapid nitriding treatment. During the nitriding process, the biaxial motor (28) is activated, and the biaxial motor (28) passes through the rotating shaft (29). Drive the driving bevel gear (30) to rotate, and drive the two rotating screws (26) to rotate synchronously through the meshing action of the driving bevel gear (30) and the driven bevel gear (17), and then rotate the screw (26) and the lifting screw barrel ( The threaded connection action of 31) drives the lifting plate (32) to move up and down, and then drives the plurality of top posts (33) to move up and down to stably support the bottom of the wheel hub molds of different sizes, making the placement more stable.