CN212526822U - Automobile plate spring production line device - Google Patents
Automobile plate spring production line device Download PDFInfo
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- CN212526822U CN212526822U CN202021005299.7U CN202021005299U CN212526822U CN 212526822 U CN212526822 U CN 212526822U CN 202021005299 U CN202021005299 U CN 202021005299U CN 212526822 U CN212526822 U CN 212526822U
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Abstract
The utility model discloses an automobile leaf spring production line device mainly comprises intermediate frequency induction furnace, swager, the constant temperature box stove, the book earphone, constant temperature box stove II, the quenching basin, the grinding machine, the peening machine, gaseous chemical heat treatment furnace, the air-blower, the passivation cistern, the drying furnace is constituteed. The utility model discloses a device has avoided heating the energy consumption that high temperature caused once more after cold to the room temperature, adopts portable sclerometer to carry out the hardness test at the eye of leaf spring, variable cross section, middle part respectively, adopts the appearance of detecting a flaw to carry out the surface flaw detection to the leaf spring next, ensures the product quality after quenching and surface machining handle, and tail gas is fully decomposed and combustion processing after the tail gas treatment furnace heating, and is pollution-free to the environment.
Description
Technical Field
The utility model relates to an automobile preparation technical field, concretely relates to car leaf spring production line device.
Background
The automobile plate spring is the most traditional elastic element in an automobile suspension system and has the advantages of good reliability, simple structure, short manufacturing process flow, low cost, greatly simplified structure and the like. Mainly made of spring steel. The disadvantages of the prior art for producing a leaf spring for a motor vehicle are as follows:
1) high energy consumption and serious environmental pollution in the production process. Mainly characterized in that the variable cross section needs to be heated once, the eye needs to be reheated once again, the quenching needs to be reheated to high temperature again, repeated heating is carried out for a plurality of times, and the energy loss is large; in addition, the quenching medium of the domestic plate spring is oil quenching, and needs to be burnt off during tempering, a large amount of oil smoke is generated, the environment is seriously polluted, the quenching oil is about 2 ten thousand yuan/ton, the loss is large, and the cost is high. Before surface anticorrosion coating, the surface also needs to be subjected to shot blasting or cleaning to remove defects such as surface oxidation, decarburization and oil stain.
2) The automobile plate spring is of a multilayer plate combined structure, the weight is high, and the energy consumption is increased in the loading and running process.
3) The gas leaf spring is required to prevent not only environmental corrosion but also morning surface damage caused by wind and sand impact in an actual operating environment, and is required to be corrosion-resistant, high in surface hardness and good in wear resistance. At present, the automobile plate spring is mainly used for coating (or paint) corrosion prevention, the thickness of the coating is more than hundreds of microns, the thickness of the coating is thick, but the coating is not wear-resistant and is easy to age and fall off. Meanwhile, polluted gas, dust and the like are discharged in the paint coating process, and the environmental pollution is serious.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an automobile plate spring production line device.
The purpose of the utility model is realized through the following technical scheme: an automobile plate spring production line device mainly comprises a medium-frequency induction furnace, a die forging machine, a constant temperature box type furnace, a crimping machine, a constant temperature box type furnace II, a quenching water tank, a grinding machine, a shot blasting machine, a gas chemical heat treatment furnace, a blower, a passivation liquid tank and a drying furnace; the one end and the die forging machine of intermediate frequency induction furnace are connected, the die forging machine is connected to the one end of constant temperature box stove, the crimping machine is connected to the other end, constant temperature box stove II is connected to the other end of crimping machine, constant temperature box stove II is connected to the one end of quenching basin, the grinding machine is connected to the other end, one side of grinding machine is equipped with the peening machine, the entry and the peening machine of gaseous chemical heat treatment stove are connected, the export and the air-blower of gaseous chemical heat treatment stove are connected, the rear end of air-blower is equipped with the passivation cistern, the export and the drying furnace in passivation.
Preferably, a portable hardness tester and a flaw detector are further arranged between the shot blasting machine and the gas chemical heat treatment furnace, the portable hardness tester is used for testing the hardness of the plate spring, and the flaw detector is used for carrying out surface flaw detection on the plate spring so as to ensure the quality of the product after quenching and surface processing.
Preferably, infrared probes are arranged above the intermediate frequency induction furnace, the die forging machine and the quenching water tank, and the infrared probes are arranged into 2 groups, so that the surface temperature of the plate spring can be accurately tested and monitored at any time.
Preferably, the lower parts of the constant temperature box type furnace and the constant temperature box type furnace II are respectively provided with an intelligent instrument for controlling the temperature in the furnace so as to ensure the accuracy of the temperature.
Preferably, a gas flowmeter and a liquid flowmeter are arranged at the left lower part of the gas chemical heat treatment furnace, and a tail gas treatment furnace is arranged at the right upper part of the gas chemical heat treatment furnace; the gas flowmeter and the liquid flowmeter are used for controlling the flow of the co-permeation element, and tail gas generated by the gas chemical heat treatment furnace is heated to 750 ℃ by the tail gas treatment furnace and is discharged after full combustion treatment.
The utility model has the advantages that: use the utility model discloses a device has avoided cold to the room temperature after the reheating energy consumption that causes, water-cooling quenches the back and directly carries out the correct grinding and shot-blasting to the leaf spring with grinding machine and peening machine, adopt portable sclerometer to carry out the hardness test at the eye of leaf spring, variable cross section, middle part respectively, adopt the appearance of detecting a flaw to carry out the surface flaw detection to the leaf spring next, ensure the product quality after quenching and surface machining handle, tail gas is through the heating back abundant decomposition of tail gas treatment furnace and burning processing, no pollution to the environment.
Drawings
FIG. 1 is a view showing a structure of a plate spring production line of an automobile;
in the figure, 1-an automobile plate spring production line device, 2-a medium frequency induction furnace, 3-a die forging machine, 4-a constant temperature box type furnace, 5-a winding machine, 6-a constant temperature box type furnace II, 7-a quenching water tank, 8-an infrared probe, 9-an intelligent instrument, 10-a grinding machine, 11-a shot blasting machine, 12-a portable hardness tester, 13-a flaw detector, 14-a gas chemical heat treatment furnace, 15-a gas flowmeter, 16-a liquid flowmeter, 17-a tail gas treatment furnace, 18-a blower, 19-a passivation liquid tank and 20-a drying furnace.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in FIG. 1, an automobile plate spring production line device 1 mainly comprises a medium frequency induction furnace 2, a die forging machine 3, a constant temperature box type furnace 4, a lug rolling machine 5, a constant temperature box type furnace II 6, a quenching water tank 7, a grinding machine 10, a shot blasting machine 11, a gas chemical heat treatment furnace 14, a blower 18, a passivation liquid tank 19 and a drying furnace 20; the one end and the swager 3 of intermediate frequency induction furnace 2 are connected, the swager 3 is connected to the one end of incubator formula stove 4, earphone 5 is connected to the other end, incubator formula stove II (6) is connected to the other end of earphone formula 5, incubator formula stove II 6 is connected to the one end of quenching basin 7, grinding machine 10 is connected to the other end, one side of grinding machine 10 is equipped with peening machine 11, the entry and the peening machine 11 of gaseous chemical heat treatment stove 14 are connected, the export and the air-blower 18 of gaseous chemical heat treatment stove 14 are connected, the rear end of air-blower 18 is equipped with passivation cistern 19, the export and the drying furnace 20 of passivation cistern 19 are connected.
Further, a portable hardness tester 12 and a flaw detector 13 are arranged between the shot blasting machine 11 and the gas chemical heat treatment furnace 14, the portable hardness tester 12 is used for testing the hardness of the plate spring, and the flaw detector 13 is used for carrying out flaw detection on the surface of the plate spring so as to ensure the quality of the product after quenching and surface processing.
Furthermore, infrared probes 8 are arranged above the intermediate frequency induction furnace 2, the die forging machine 3 and the quenching water tank 7, and the infrared probes 8 are arranged into 2 groups, so that the surface temperature of the plate spring can be accurately tested and monitored at any time.
Furthermore, intelligent instruments 9 are arranged at the lower parts of the constant temperature box type furnace 4 and the constant temperature box type furnace II 6, and are used for controlling the temperature in the furnaces so as to ensure the accuracy of the temperature.
Further, a gas flowmeter 15 and a liquid flowmeter 16 are arranged at the left lower part of the gas chemical heat treatment furnace 14, and a tail gas treatment furnace 17 is arranged at the right upper part of the gas chemical heat treatment furnace 14; the gas flowmeter 15 and the liquid flowmeter 16 are used for controlling the flow of the co-permeation element, and tail gas generated by the gas chemical heat treatment furnace 14 is heated to 750 ℃ by the tail gas treatment furnace 17 and is discharged after being sufficiently combusted.
The utility model discloses the theory of operation: the method comprises the steps of taking a forged and formed spring steel blank for the automobile plate spring, putting the blank into a medium-frequency induction furnace 2, uniformly heating the blank to 1200 ℃, then bending and compression molding the blank on a die forging machine 3 to obtain the radian and variable cross-section size required by the automobile plate spring, controlling the temperature of the formed plate spring to 1050 ℃, directly putting the formed plate spring into a constant-temperature box-type furnace 4 at 1050 ℃, keeping the temperature for 5 minutes at 1050 ℃, taking out the plate spring on a lug rolling machine 5, carrying out constant-temperature treatment on the plate spring after the lug rolling treatment in a constant-temperature box-type furnace II 6 at 860 ℃, taking out the plate spring when the overall temperature of the plate spring is 860 ℃, putting the plate spring into a quenching water tank 7 for water-cooling quenching treatment, taking out the plate spring when the temperature is cooled to 200 ℃, carrying out air-cooling to room temperature, adopting an infrared probe 8 to constantly test and monitor the surface temperature of the plate spring in the medium-frequency heating, bending and compression, to ensure the accuracy of the temperature.
The quenched plate spring is placed on a grinding machine 10 for fine grinding, surface shot blasting is carried out on a shot blasting machine 11 after fine grinding, oxidized skin and decarburized layers on the surface of the plate spring are fully removed through fine grinding and shot blasting, size precision and surface quality are ensured, after machining, hardness tests are carried out on a coil ear, a variable cross section and a middle part of the plate spring respectively through a portable hardness tester 12, then surface flaw detection is carried out on the plate spring through a flaw detector 13, and product quality after quenching and surface machining is ensured.
The leaf spring after surface processing and detection is put into a gas chemical heat treatment furnace 14, gas nitrogen, carbon, oxygen and sulfur co-permeation and tempering treatment is carried out for 2 hours at the temperature of 500 ℃, the flow rate of co-permeation elements in the treatment process is respectively controlled by a gas flowmeter 15 and a liquid flowmeter 16, tail gas is heated to 750 ℃ by a tail gas treatment furnace 17 and then is fully combusted, the leaf spring after the co-permeation treatment is air-cooled to room temperature under the condition of an air blower 18, passivation solution is dip-coated in a passivation solution tank 19 for 10 minutes, then the leaf spring is dried in a drying furnace 20 at the temperature of 180 ℃ for 1 hour, and then the final leaf spring product is obtained after air cooling to room temperature.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. The utility model provides an automobile leaf spring production line device which characterized in that: the automobile plate spring production line device (1) mainly comprises a medium-frequency induction furnace (2), a die forging machine (3), a constant-temperature box type furnace (4), a crimping machine (5), a constant-temperature box type furnace II (6), a quenching water tank (7), a grinding machine (10), a shot blasting machine (11), a gas chemical heat treatment furnace (14), a blower (18), a passivation liquid tank (19) and a drying furnace (20); the one end and the swager (3) of intermediate frequency induction furnace (2) are connected, swager (3) are connected to the one end of constant temperature box furnace (4), earphone (5) are connected to the other end, constant temperature box furnace II (6) are connected to the other end of earphone (5), constant temperature box furnace II (6) are connected to the one end of quenching basin (7), grinding machine (10) is connected to the other end, one side of grinding machine (10) is equipped with peening machine (11), the entry and the peening machine (11) of gaseous chemical heat treatment stove (14) are connected, the export and the air-blower (18) of gaseous chemical heat treatment stove (14) are connected, the rear end of air-blower (18) is equipped with passivation cistern (19), the export and the drying furnace (20) of passivation cistern (19) are connected.
2. The automotive leaf spring production line according to claim 1, characterized in that: still be equipped with portable sclerometer (12) and flaw detector (13) between peening machine (11) and gaseous chemical heat treatment furnace (14), portable sclerometer (12) carry out hardness test to the leaf spring, and flaw detector (13) carry out surface inspection to the leaf spring, ensure the product quality after quenching and surface machining.
3. The automotive leaf spring production line according to claim 1, characterized in that: the upper parts of the intermediate frequency induction furnace (2), the die forging machine (3) and the quenching water tank (7) are respectively provided with an infrared probe (8), the infrared probes (8) are arranged into 2 groups, and the surface temperature of the plate spring can be accurately tested and monitored at any time.
4. The automotive leaf spring production line according to claim 1, characterized in that: and intelligent instruments (9) are arranged at the lower parts of the constant temperature box type furnace (4) and the constant temperature box type furnace II (6) to control the temperature in the furnace so as to ensure the accuracy of the temperature.
5. The automotive leaf spring production line according to claim 1, characterized in that: a gas flowmeter (15) and a liquid flowmeter (16) are arranged at the left lower part of the gas chemical heat treatment furnace (14), and a tail gas treatment furnace (17) is arranged at the right upper part of the gas chemical heat treatment furnace (14); the gas flowmeter (15) and the liquid flowmeter (16) are used for controlling the flow of the co-permeation element, and tail gas generated by the gas chemical heat treatment furnace (14) is heated to 750 ℃ by the tail gas treatment furnace (17) and is discharged after being fully combusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021005299.7U CN212526822U (en) | 2020-06-04 | 2020-06-04 | Automobile plate spring production line device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021005299.7U CN212526822U (en) | 2020-06-04 | 2020-06-04 | Automobile plate spring production line device |
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| Publication Number | Publication Date |
|---|---|
| CN212526822U true CN212526822U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021005299.7U Active CN212526822U (en) | 2020-06-04 | 2020-06-04 | Automobile plate spring production line device |
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|---|---|
| CN (1) | CN212526822U (en) |
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- 2020-06-04 CN CN202021005299.7U patent/CN212526822U/en active Active
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