CN112025218A - Flange machining process - Google Patents
Flange machining process Download PDFInfo
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- CN112025218A CN112025218A CN202010859064.2A CN202010859064A CN112025218A CN 112025218 A CN112025218 A CN 112025218A CN 202010859064 A CN202010859064 A CN 202010859064A CN 112025218 A CN112025218 A CN 112025218A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The application relates to a flange machining process, which comprises the following steps: s1, cutting and forming the stainless steel plates with different specifications and thicknesses by adopting laser cutting equipment; s2, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the flange product after laser cutting; s3, selecting punching equipment with different specifications according to the thickness of the flange products, and flattening the surface profile of the product by using a high-precision die; s4, selecting punching equipment to punch the holes of the product according to the thickness of the flange and the shape and size of the holes, and performing punch forming on the positioning holes and the mounting holes of the product by using a high-precision single-station, double-station or multi-station die; s5, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the punched flange product; s6, grinding the end face of the product by using vertical double-end-face grinding equipment; s7, using ultrasonic cleaning lines to remove dirt, oil, rust and wax of the product; and S8, performing sand blasting treatment on the end face of the product by using sand blasting equipment.
Description
Technical Field
The application belongs to the technical field of flanges, and particularly relates to a machining process of a flange.
Background
In the prior art, flange plates are processed in various processes, and the process requirements generally include the flatness and smoothness of the surface of a product, the overall edge burr removal effect of the product, the processing precision of the product and other requirements.
The steps mainly comprise the steps of blanking, cutting, hole machining, polishing and the like, for example, in the prior art, the blanking adopts a stamping process, the quality defects of high mold cost, poor forming manufacturability, serious corner collapse, large stress, more indentations and the like are caused, and the hole machining step adopts cutting machining, so that the defects of more burrs, difficult polishing and finally product performance are caused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the flange processing technology is provided for solving the defects of flange processing in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a machining process of a flange comprises the following steps:
s1, cutting and forming the stainless steel plates with different specifications and thicknesses by adopting laser cutting equipment;
s2, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the flange product after laser cutting;
s3, selecting punching equipment with different specifications according to the thickness of the flange products, and flattening the surface profile of the product by using a high-precision die;
s4, selecting punching equipment to punch the holes of the product according to the thickness of the flange and the shape and size of the holes, and performing punch forming on the positioning holes and the mounting holes of the product by using a high-precision single-station, double-station or multi-station die;
s5, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the punched flange product;
s6, grinding the end face of the product by using vertical double-end-face grinding equipment;
s7, using ultrasonic cleaning lines to remove dirt, oil, rust and wax of the product;
and S8, performing sand blasting treatment on the end face of the product by using sand blasting equipment.
Preferably, in step S2, the processing method of the flange of the present invention selects grinding particles with suitable particle size according to the characteristic requirements of different specifications of flange products, and adds a certain proportion of grinding stones and grinding agents, wherein the grinding positions include two end faces, an end face edge, a positioning hole edge and a mounting hole edge of the product.
Preferably, in step S3, the parallelism, perpendicularity and flatness of the product after being patted by the die are controlled within 0.05mm, 0.05mm and 0.05mm, respectively.
Preferably, the machining process of the flange of the invention,
in step S4, after the product is processed at the first station of the mold, the position degree, the verticality and the roundness of the product are controlled to be 0.1mm, 0.1mm and within 0.1mm, respectively.
Preferably, the machining process of the flange of the invention,
in step S5, a quantity of abrasive particles and abrasive is added.
Preferably, the machining process of the flange of the invention,
in step S6, the upper and lower height distances of the grinding wheel are set by a numerical control system to grind the two sides of different flange products, and the grinding amount of each product is 0.02-0.2 mm.
Preferably, in the processing process of the flange according to the present invention, in step S7, the ultrasonic cleaning line work flow is as follows:
heating the water tank to a temperature within 100 ℃;
feeding, spraying and rough washing;
ultrasonic fine washing;
spray rinsing;
and (5) drying.
Preferably, in the processing technology of the flange of the present invention, in step S7, the flange flow rotating disc is used to load the product, and then the flange flow rotating disc loaded with the product is directly placed on the conveyor belt of the cleaning machine to perform the ultrasonic cleaning line operation.
Preferably, in step S8, the flange stream turntable with the product is directly placed on a conveyor belt of a sand blasting machine to be subjected to sand blasting.
Preferably, in step S8, the process for processing the flange according to the present invention includes adjusting the sandblasting pressure to 2MPa-12MPa according to the requirements of different types of flanges, respectively, to ensure that the surface roughness of the product is within ra1.4 and Rz1max14, adjusting the proper swinging speed of the spray gun according to the quality characteristics of different specification flanges, placing the product on the conveyer belt of the sandblasting machine, adjusting the speed of the conveyer belt according to the quality characteristics of different specification flanges, so that the product passes through the coverage area of the sandblasting gun, and processing the surface with sand particles within 300 #.
The invention has the beneficial effects that: the laser cutting process can effectively ensure the deformation of flange cutting through the practical application of an actual production field, and compared with the existing processing process on the market, the process has the advantages of stable quality, high efficiency and low cost. The vibration grinding time is a certain time, and the stress after laser cutting is fully released through the vibration principle while the burrs are ground and removed. The parallelism, the verticality and the planeness of the surface profile of the product are greatly improved by stamping and flattening, and the subsequent high-speed end surface grinding is facilitated. The precision of the inner hole of the stamping flange is improved, and the subsequent vibration grinding processing is facilitated. The sand blasting treatment blocks the penetrating scratches caused by the grinding processing under the microscopic condition of the surface, and the sealing effect is ensured when the terminal is used.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
Fig. 1 is a flow chart of a processing process of a flange according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples
The embodiment provides a flange machining process, which is characterized by comprising the following steps of:
s1, cutting and forming the stainless steel plates with different specifications and thicknesses by adopting laser cutting equipment;
s2, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the flange product after laser cutting;
s3, selecting punching equipment with different specifications according to the thickness of the flange products, and flattening the surface profile of the product by using a high-precision die;
s4, selecting punching equipment to punch the holes of the product according to the thickness of the flange and the shape and size of the holes, and performing punch forming on the positioning holes and the mounting holes of the product by using a high-precision single-station, double-station or multi-station die;
s5, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the punched flange product;
s6, grinding the end face of the product by using vertical double-end-face grinding equipment;
s7, using ultrasonic cleaning lines to remove dirt, oil, rust and wax of the product;
and S8, performing sand blasting treatment on the end face of the product by using sand blasting equipment.
Specifically, in this embodiment, the S1 laser cutting blanking: and cutting and forming the stainless steel plates with different specifications and thicknesses by adopting laser cutting equipment. Through practical application of an actual production field, the cutting process can effectively ensure the deformation of flange cutting, relative to the 0.2mm position degree of a mounting hole, based on the procedures of 0.1mm parallelism of a surface and a surface, 0.1mm perpendicularity and the like. Compared with the existing processing technology on the market, the technology has the advantages of stable quality, high efficiency and low cost. (for example, the stamping process has the quality defects of high cost of a die, poor forming manufacturability, serious corner collapse, large stress, more indentation and the like). The laser cutting can realize the cutting of two-dimensional projection shapes under any complex conditions. Laser cutting flange unloading waste material is few, and raw and other materials are extravagant few, and the punching press unloading of contrast original traditional handicraft has practiced thrift raw and other materials extravagant greatly, has removed the waste material production in mould material area less.
S2, grinding to remove the laser cutting burrs: and (3) using a vibration grinding machine to carry out deburring grinding treatment on the profile and the inner hole of the flange product after laser cutting (including two end faces, end face edges, positioning hole edges and mounting hole edge positions of the product). In the embodiment, 40-140 mesh grinding particles (in actual conditions, proper grinding particles are selected according to the characteristic requirements of different standard flange products) are used, and a certain proportion of grinding stones are added. And adding a proper amount of grinding agent to accelerate the removal of acute-angle surface burrs and increase the surface smoothness of the flange. The vibration grinding time is a certain time, and the stress after laser cutting is fully released through the vibration principle while the burrs are ground and removed.
S3 stamping and flattening: selecting punching equipment with different specifications (such as 30-400T) according to the thickness of the flange product to ensure the quality stability of the product; and (3) flattening the surface profile of the product by using a high-precision die, wherein the flatness of the die is 0.01 mm. After the product is flattened by the die, the parallelism is controlled within 0.05 mm; after the product is leveled by the die, the verticality is controlled within 0.05 mm; the flatness of the product is controlled within 0.05mm after the product is flapped by the die. The step facilitates subsequent high-speed end face grinding.
S4 stamping an inner hole of the flange: and (3) punching holes of the product by using 20T-400T punching equipment according to the thickness of the flange and the shape and size of the holes, and ensuring the quality stability of the product. And (3) performing punch forming on the product positioning hole and the mounting hole by using a high-precision single-double-station or multi-station die, wherein the matching precision of the die is within 0.02 mm. After the product is processed by the first station of the die, the product can reach the position degree of 0.1mm, the verticality of 0.1mm and the roundness of 0.1mm, and the requirement is met when the product is installed by a customer. The precision of the inner hole of the product after the fine punching of the die can reach within 0.05mm, and the quality requirements of later installation of the client and pipeline welding are ensured. The product is subjected to the control of the punching burrs of the die within 0.2 so as to avoid influencing the subsequent grinding production. The step facilitates subsequent vibration grinding processing.
S5, grinding to remove inner hole punching burrs: and (5) using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the punched flange product. Adding a quantity of abrasive particles; and adding a proper amount of grinding agent to accelerate the removal of acute-angle surface burrs and increase the surface smoothness of the flange. And (4) vibrating and grinding for a certain time, and fully releasing the stress after stamping through a vibration principle while grinding and deburring. The condition that the abrasion of the grinding wheel is too fast during subsequent grinding is avoided.
And S6 end face grinding: and grinding the end face of the steel pipe by using vertical double-end-face grinding equipment and ensuring the quality stability of the product. The grinding effectiveness of two sides of different flange products is ensured by setting the vertical height distance of the grinding wheel through a numerical control system. The grinding amount of each product is 0.02-0.2 mm. And (3) performing end face grinding and forming by using a high-precision double-end-face grinding machine, wherein the size requirement is as follows: the flatness is within 0.04mm, the parallelism is within 0.15mm, and the roughness is within the ranges of Ra1.4 and Rz1max 14. The process size is ensured to meet the requirements of the drawing, and the size after the secondary sand blasting procedure is ensured to meet the requirements of the drawing and the actual sealing effect. The process has the advantages that the precision requirement of the end face of the flange product is guaranteed based on simultaneous grinding of two faces, and the process is different from the traditional process that only one face is machined or only one face is used as a reference machining installation face, so that the quality stability of the product is poor.
S7 cleaning: the ultrasonic cleaning line has the advantages of decontamination, oil removal, rust removal and wax removal, no damage to products, full-automatic cleaning, capability of penetrating and cleaning products with complex structures, high cleaning efficiency and good effect. The working process of the ultrasonic cleaning line comprises the following steps: heating a water tank at a temperature of less than 100 ℃, feeding, spraying and rough washing, ultrasonic fine washing, spraying and rinsing, and drying. The ultrasonic cleaning is realized by using a Q value vibrator and a unique ultrasonic generator, and utilizing the direct and indirect action of the cavitation acceleration action and the direct current action of ultrasonic waves in liquid on the liquid and dirt, so that a dirt layer is dispersed, emulsified and stripped to achieve the cleaning purpose. The flange flow rotary table can be directly placed on a conveyor belt of a cleaning machine to achieve the cleaning effect, and is high in efficiency and convenient to use. The surface is relatively clean after the processing by the procedure, thereby avoiding the sand grains from being adhered to the surface during the subsequent sand blasting to influence the product quality.
S8 sand blasting treatment: the sand blasting equipment is used for ensuring the end surface quality of the product, and the product has no scratch, no color difference and the like. The sand blasting air pressure can be adjusted and is respectively set to be 2MPa-12MPa according to the requirements of different types of flanges, so that the surface roughness Ra1.4 and Rz1max14 of the product are ensured to be within. The uniform swing speed of the sand blasting gun in the embodiment is within 80 m/min (the proper swing speed of the sand blasting gun is adjusted according to the quality characteristic requirements of different standard flange products under the actual condition), so that the sand blasting gun can effectively and uniformly process the surface of the product when the product passes through the sand blasting gun. The whole tray of the product is placed on the conveyer belt of the sand blasting machine, the conveying speed of the conveyer belt in the embodiment is set within 80 m/min (the speed of the conveyer belt is adjusted and set according to the quality characteristic requirements of different standard flange products under the actual condition), so that the product can pass through the coverage range of the sand blasting gun to ensure the uniformity of the product surface after sand blasting. And processing the surface by using special sand grains within 300 #. The flange flow rotary table can be directly placed on a conveying belt of a sand blasting machine to achieve a sand blasting effect through the flange flow rotary table, and the flange flow rotary table is high in efficiency and convenient to use. The process impacts the surface of a product through sand blasting, so that penetrating scratches caused by grinding under the microscopic condition of the surface are blocked, and the sealing effect in the use process of the terminal is ensured.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The machining process of the flange is characterized by comprising the following steps of:
s1, cutting and forming the stainless steel plates with different specifications and thicknesses by adopting laser cutting equipment;
s2, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the flange product after laser cutting;
s3, selecting punching equipment with different specifications according to the thickness of the flange products, and flattening the surface profile of the product by using a high-precision die;
s4, selecting punching equipment to punch the holes of the product according to the thickness of the flange and the shape and size of the holes, and performing punch forming on the positioning holes and the mounting holes of the product by using a high-precision single-station, double-station or multi-station die;
s5, using a vibration grinder to perform deburring and grinding treatment on the profile and the inner hole of the punched flange product;
s6, grinding the end face of the product by using vertical double-end-face grinding equipment;
s7, using ultrasonic cleaning lines to remove dirt, oil, rust and wax of the product;
and S8, performing sand blasting treatment on the end face of the product by using sand blasting equipment.
2. A flange machining process according to claim 1, wherein in step S2, grinding particles with proper particle sizes are selected according to different specifications of flange products, a certain proportion of grinding stones and grinding agents are added, and grinding positions comprise two end faces, end face edges, positioning hole edges and mounting hole edges of the products.
3. The flange processing technology of claim 2, wherein in step S3, the parallelism of the product is controlled within 0.05mm, the verticality is controlled within 0.05mm, and the flatness is controlled within 0.05mm after the product is flattened by the die.
4. A process for manufacturing a flange according to any one of claims 1 to 3,
in step S4, after the product is processed at the first station of the mold, the position degree, the verticality and the roundness of the product are controlled to be 0.1mm, 0.1mm and within 0.1mm, respectively.
5. A flange processing process according to any one of claims 1 to 3, wherein a certain amount of abrasive grains and abrasives are added in step S5.
6. A process for manufacturing a flange according to any one of claims 1 to 3,
in step S6, the upper and lower height distances of the grinding wheel are set by a numerical control system to grind the two sides of different flange products, and the grinding amount of each product is 0.02-0.2 mm.
7. The flange processing process according to any one of claims 1 to 3, wherein in step S7, the ultrasonic cleaning line work flow is as follows:
heating the water tank to a temperature within 100 ℃;
feeding, spraying and rough washing;
ultrasonic fine washing;
spray rinsing;
and (5) drying.
8. The process for manufacturing a flange according to claim 7, wherein in step S7, the flange flow rotating disc is used to load the product, and then the flange flow rotating disc loaded with the product is directly placed on a conveyor belt of the cleaning machine to perform the ultrasonic cleaning line operation.
9. A flange machining process according to claim 8, wherein in step S8, the flange flow turntable with the product is directly placed on a sand blasting machine conveyor belt for sand blasting.
10. A flange machining process according to any one of claims 1 to 3, wherein in step S8, the sand blasting air pressure is adjusted to be 2MPa to 12MPa according to the requirements of different types of flanges to ensure that the product surface roughness is within Ra1.4 and Rz1max14, the proper swinging speed of the spray gun is adjusted according to the quality characteristics of different standard flange products, the whole product tray is placed on the conveyer belt of the sand blasting machine, the speed of the conveyer belt is adjusted and set according to the quality characteristics of different standard flange products, so that the product passes through the coverage area of the sand blasting machine, and the surface is machined by using sand particles within 300 #.
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| CN202010859064.2A CN112025218A (en) | 2020-08-24 | 2020-08-24 | Flange machining process |
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| CN202010859064.2A CN112025218A (en) | 2020-08-24 | 2020-08-24 | Flange machining process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145726A (en) * | 2021-04-19 | 2021-07-23 | 青岛智科机械制造有限公司 | Method and equipment for producing flange |
| CN115531939A (en) * | 2022-09-19 | 2022-12-30 | 浙江省浦江宏达有限公司 | Round point type guide plate, disc-shaped filter for filtering melt and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270580A (en) * | 1998-03-20 | 1999-10-05 | Metalart Corp | Manufacture of hub flange for clutch |
| CN104162765A (en) * | 2014-07-07 | 2014-11-26 | 江苏海纬集团有限公司 | Pipe fitting machining technology |
| CN104741448A (en) * | 2013-12-27 | 2015-07-01 | 旭景川宇机械（天津）有限公司 | Manufacturing process of silencer flange |
| CN205324243U (en) * | 2015-12-23 | 2016-06-22 | 苏州华唐自动化科技有限公司 | Axle housing ultrasonic cleaning line |
| CN106312472A (en) * | 2016-11-18 | 2017-01-11 | 陕西高华知本化工科技有限公司 | Double eccentric flange machining method |
| CN106624625A (en) * | 2016-11-18 | 2017-05-10 | 江苏力野精工科技有限公司 | Flange plate processing method |
| CN110480275A (en) * | 2019-08-29 | 2019-11-22 | 浙江同兴金属锻件股份有限公司 | The processing method of brake caliper |
| CN111037231A (en) * | 2019-12-27 | 2020-04-21 | 江苏海鋆自动化技术有限公司 | Production process of compression ring |
-
2020
- 2020-08-24 CN CN202010859064.2A patent/CN112025218A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11270580A (en) * | 1998-03-20 | 1999-10-05 | Metalart Corp | Manufacture of hub flange for clutch |
| CN104741448A (en) * | 2013-12-27 | 2015-07-01 | 旭景川宇机械（天津）有限公司 | Manufacturing process of silencer flange |
| CN104162765A (en) * | 2014-07-07 | 2014-11-26 | 江苏海纬集团有限公司 | Pipe fitting machining technology |
| CN205324243U (en) * | 2015-12-23 | 2016-06-22 | 苏州华唐自动化科技有限公司 | Axle housing ultrasonic cleaning line |
| CN106312472A (en) * | 2016-11-18 | 2017-01-11 | 陕西高华知本化工科技有限公司 | Double eccentric flange machining method |
| CN106624625A (en) * | 2016-11-18 | 2017-05-10 | 江苏力野精工科技有限公司 | Flange plate processing method |
| CN110480275A (en) * | 2019-08-29 | 2019-11-22 | 浙江同兴金属锻件股份有限公司 | The processing method of brake caliper |
| CN111037231A (en) * | 2019-12-27 | 2020-04-21 | 江苏海鋆自动化技术有限公司 | Production process of compression ring |
Non-Patent Citations (5)
| Title |
|---|
| 匡银: "大型法兰下料拼焊及外包哈氏合金焊接", 《铜业工程》 * |
| 吴激扬: "《去毛刺技术》", 30 April 1986, 科学技术文献出版社重庆分社 * |
| 张文明等: "《可编程控制器及网络控制技术》", 29 February 2012, 中国铁道出版社 * |
| ***等: "《现代制造***》", 30 September 2016, 华中科技大学出版社 * |
| 邓远富等: "《现代电化学》", 31 May 2014, 华南理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145726A (en) * | 2021-04-19 | 2021-07-23 | 青岛智科机械制造有限公司 | Method and equipment for producing flange |
| CN115531939A (en) * | 2022-09-19 | 2022-12-30 | 浙江省浦江宏达有限公司 | Round point type guide plate, disc-shaped filter for filtering melt and manufacturing method thereof |
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