CN110576138A - composite insulator ball socket forging die and forging process - Google Patents
composite insulator ball socket forging die and forging process Download PDFInfo
- Publication number
- CN110576138A CN110576138A CN201910954098.7A CN201910954098A CN110576138A CN 110576138 A CN110576138 A CN 110576138A CN 201910954098 A CN201910954098 A CN 201910954098A CN 110576138 A CN110576138 A CN 110576138A
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- CN
- China
- Prior art keywords
- forging
- composite insulator
- cylindrical section
- die
- forging die
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
- B21K21/10—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs cone-shaped or bell-shaped articles, e.g. insulator caps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a composite insulator ball socket forging die and a forging process, which are characterized in that: comprises an upper forging die and a lower forging die; s1: blanking and surface treatment; s2: heating; s3: removing oxide skin; s4: forging and forming; according to the invention, the die with the central core rod is adopted for forging, and the ball socket central hole of the composite insulator is directly formed after forging, so that the use of materials can be greatly reduced, and the forged materials are saved; in addition, the high-pressure water tank is adopted in the forging process to remove the oxide layer on the surface of the composite insulator, so that the surface damage caused in the forging process can be reduced, and the defective rate is reduced.
Description
Technical Field
The invention relates to the field of composite insulator forging, in particular to a composite insulator ball socket forging die and a forging process.
Background
The ball socket composite insulator hardware fitting of the composite insulator is a metal end at two ends of the composite insulator and is an important component of the composite insulator. The composite insulator consists of composite insulator hardware, a glass fiber drawing rod and silicon rubber;
for the composite insulator ball socket hardware, the current common processing method is to directly forge a round steel bar after heating or directly process the round steel, and only large-size raw materials can be selected, so that the problem of serious waste of the materials with large allowance is solved, and the processing difficulty is increased; the processing procedures are multiple, the manpower and material resources are wasted, and the product cost is high; in addition, since heating treatment is required during forging, surface oxidation may occur during heating, and the scale on the surface may destroy the surface structure after forming during forging, resulting in a high defective rate of products.
Disclosure of Invention
The invention aims to solve the technical problem of providing a composite insulator ball socket forging die and a forging process, which can solve the problem that the material consumption is large because a central hole of a ball socket compression joint part is not forged together by a die adopted in the forging of a common composite insulator; and the problem that the surface oxide skin of the blank is not removed in the common ball socket forging process, so that the composite insulator forging hardware has many surface defects.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a composite insulator ball socket forges mould, its innovation point lies in: comprises an upper forging die and a lower forging die;
The upper forging die comprises an upper punch cushion block and an upper punch rod; the upper punch cushion block comprises an upper cylindrical section and a lower cylindrical section, the upper cylindrical section and the lower cylindrical section are of an integral structure, and the outer diameter of the upper cylindrical section is larger than that of the lower cylindrical section; the upper cylindrical section is provided with a containing hole for containing the upper punching rod; the upper punch core rod is embedded in the upper cylindrical section of the upper punch cushion block and extends into the lower cylindrical section; the top end of the upper punch rod is flush with the upper cylindrical section, and the bottom end of the upper punch rod is positioned in the lower cylindrical section; a forging accommodating cavity is formed between the upper punch rod and the inner wall of the lower cylindrical section;
The lower forging die comprises an outer die holder and an inner forging die core; the inner forging die core is arranged in the outer die holder and is connected with the outer die holder through a wedge-shaped surface structure; a forging cavity for accommodating the upper forging die is formed in the center of the inner forging die core; and the upper forging die enters and exits the forging cavity of the lower forging die along the vertical direction to forge the ball socket of the composite insulator.
Furthermore, a cooling groove is arranged on the upper cylindrical section of the upper punch cushion block in a cross shape or a circular shape along the axis direction.
the forging process of the composite insulator ball socket has the innovation points that: the specific forging process is as follows:
s1: blanking and surface treatment: carbon steel is used as a raw material, so that the hardenability, the purity and the grain refinement of the steel are ensured; the surface of the cylindrical blank is subjected to grinding, polishing, barreling and oil removal treatment to remove the surface defects of the carbon steel; cutting the cylindrical blank to obtain a plurality of cylindrical composite insulator round bar units;
s2: heating: heating the cylindrical composite insulator round rod unit to 950-1050 ℃ by an intermediate frequency heating furnace; and keeping the temperature for 1 hour;
S3: descaling: placing the heated composite insulator round bar unit into special descaling equipment, and washing by a high water gun in the equipment to remove the surface scale layer;
S4: forging and forming: placing the composite insulator round bar unit subjected to scale removal into a die for forging and molding; forging the whole cylindrical composite insulator round bar unit into a specified blank specification with a central hole, then carrying out heat treatment on the forged blank, and naturally cooling to normal temperature.
the invention has the advantages that:
1) According to the invention, the die with the central core rod is adopted for forging, and the ball socket central hole of the composite insulator is directly formed after forging, so that the use of materials can be greatly reduced, and the forged materials are saved; in addition, the high-pressure water tank is adopted in the forging process to remove the oxide layer on the surface of the composite insulator, so that the surface damage caused in the forging process can be reduced, and the defective rate is reduced.
drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
fig. 1 is a main sectional view of an upper forging die of a composite insulator ball socket forging die.
Fig. 2 is a top view of an upper forging die of the composite insulator ball socket forging die.
Fig. 3 is a main sectional view of a lower forging die of the composite insulator ball socket forging die.
Detailed Description
the following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
The composite insulator ball socket forging die shown in fig. 1 to 3 comprises an upper forging die 1 and a lower forging die 2.
The upper forging die 1 comprises an upper punch cushion block 11 and an upper punch rod 12; the upper punch cushion block 11 comprises an upper cylindrical section 13 and a lower cylindrical section 14, the upper cylindrical section 13 and the lower cylindrical section 14 are of an integral structure, and the outer diameter of the upper cylindrical section 13 is larger than that of the lower cylindrical section 14; the upper cylindrical section 13 is provided with a containing hole for containing the upper punch rod 12; the upper punch 12 is embedded in the upper cylindrical section 13 of the upper punch cushion block 11 and the upper punch 12 extends into the lower cylindrical section 14; the top end of the upper punch 12 is flush with the upper cylindrical section 13, and the bottom end of the upper punch 12 is positioned in the lower cylindrical section 14; the upper core rod 12 and the inner wall of the lower cylindrical section 14 form a forging receiving cavity therebetween.
the lower forging die 2 comprises an outer die holder 21 and an inner forging die core 22; the inner forging die core 22 is arranged in the outer die holder 21, and the inner forging die core 22 is connected with the outer die holder 21 through a wedge-shaped surface structure; the center of the inner forging die core 22 is provided with a forging die cavity 23 for accommodating the upper forging die 1; the upper forging die 1 enters and exits the forging cavity 23 of the lower forging die 2 along the vertical direction to forge the ball socket of the composite insulator.
the upper cylindrical section of the upper die pad 11 is provided with a cooling groove 15 in a cross shape or a circular shape along the axial direction.
A forging process of a composite insulator ball socket comprises the following specific steps:
S1: blanking and surface treatment: carbon steel is used as a raw material, so that the hardenability, the purity and the grain refinement of the steel are ensured; the surface of the cylindrical blank is subjected to grinding, polishing, barreling and oil removal treatment to remove the surface defects of the carbon steel; cutting the cylindrical blank to obtain a plurality of cylindrical composite insulator round bar units;
S2: heating: heating the cylindrical composite insulator round rod unit to 950-1050 ℃ by an intermediate frequency heating furnace; and keeping the temperature for 1 hour;
S3: descaling: placing the heated composite insulator round bar unit into special descaling equipment, and washing by a high-pressure water gun in the equipment to remove the surface scale;
S4: forging and forming: placing the composite insulator round bar unit subjected to scale removal into a die for forging and molding; forging the whole cylindrical composite insulator round bar unit into a specified blank specification with a central hole, then carrying out heat treatment on the forged blank, and naturally cooling to normal temperature.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a composite insulator ball socket forges mould which characterized in that: comprises an upper forging die and a lower forging die;
The upper forging die comprises an upper punch cushion block and an upper punch rod; the upper punch cushion block comprises an upper cylindrical section and a lower cylindrical section, the upper cylindrical section and the lower cylindrical section are of an integral structure, and the outer diameter of the upper cylindrical section is larger than that of the lower cylindrical section; the upper cylindrical section is provided with a containing hole for containing the upper punching rod; the upper punch core rod is embedded in the upper cylindrical section of the upper punch cushion block and extends into the lower cylindrical section; the top end of the upper punch rod is flush with the upper cylindrical section, and the bottom end of the upper punch rod is positioned in the lower cylindrical section; a forging accommodating cavity is formed between the upper punch rod and the inner wall of the lower cylindrical section;
The lower forging die comprises an outer die holder and an inner forging die core; the inner forging die core is arranged in the outer die holder and is connected with the outer die holder through a wedge-shaped surface structure; a forging cavity for accommodating the upper forging die is formed in the center of the inner forging die core; and the upper forging die enters and exits the forging cavity of the lower forging die along the vertical direction to forge the ball socket of the composite insulator.
2. the composite insulator ball socket forging die of claim 1, wherein: and a cooling groove is arranged on the upper cylindrical section of the upper punch cushion block in a cross shape or a circular shape along the axis direction.
3. A forging process of a composite insulator ball socket is characterized by comprising the following steps: the specific forging process is as follows:
S1: blanking and surface treatment: carbon steel is used as a raw material, so that the hardenability, the purity and the grain refinement of the steel are ensured; the surface of the cylindrical blank is subjected to grinding, polishing, barreling and oil removal treatment to remove the surface defects of the carbon steel; cutting the cylindrical blank to obtain a plurality of cylindrical composite insulator round bar units;
S2: heating: heating the cylindrical composite insulator round rod unit to 950-1050 ℃ by an intermediate frequency heating furnace; and keeping the temperature for 1 hour;
s3: descaling: placing the heated composite insulator round bar unit into special descaling equipment, and washing by a high-pressure water gun in the equipment to remove the surface scale;
s4: forging and forming: placing the composite insulator round bar unit subjected to scale removal into a die for forging and molding; forging the whole cylindrical composite insulator round bar unit into a specified blank specification with a central hole, then carrying out heat treatment on the forged blank, and naturally cooling to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954098.7A CN110576138A (en) | 2019-10-09 | 2019-10-09 | composite insulator ball socket forging die and forging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954098.7A CN110576138A (en) | 2019-10-09 | 2019-10-09 | composite insulator ball socket forging die and forging process |
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| Publication Number | Publication Date |
|---|---|
| CN110576138A true CN110576138A (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910954098.7A Pending CN110576138A (en) | 2019-10-09 | 2019-10-09 | composite insulator ball socket forging die and forging process |
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| CN (1) | CN110576138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112536413A (en) * | 2020-11-02 | 2021-03-23 | 无锡昌至盛机械制造有限公司 | Integrated production process of lower end hardware fitting and forging die thereof |
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| CN101130202A (en) * | 2007-09-18 | 2008-02-27 | 徐国兴 | Method for smithing aluminium alloy wheel hub of vehicle and smithing mold thereof |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN104493484A (en) * | 2014-02-18 | 2015-04-08 | 金华永乐矿山机械有限公司 | Belt wheel flangeless forging process of electromagnetic clutch of automotive air conditioner |
| CN106378407A (en) * | 2016-11-29 | 2017-02-08 | 洛阳秦汉精工股份有限公司 | Composite semisolid stamp-forging mold device |
| CN206483951U (en) * | 2017-01-13 | 2017-09-12 | 四川龙擎汽车部件制造有限公司 | A kind of valve hot-forging die |
| CN206779172U (en) * | 2017-05-23 | 2017-12-22 | 河南经纬电力科技股份有限公司 | A kind of used in composite insulator ball-and-socket gold utensil extrusion molding dies |
| CN108311622A (en) * | 2018-01-22 | 2018-07-24 | 宾科汽车紧固件（昆山）有限公司 | Vacuum generator rotor forming method in automobile engine |
| CN109226650A (en) * | 2018-11-20 | 2019-01-18 | 东莞市正品五金电子有限公司 | A kind of molding die and its processing method of gear shaft cold extrusion processing |
| CN208613664U (en) * | 2018-08-22 | 2019-03-19 | 河南经纬电力科技股份有限公司 | A kind of Compound insulator ball socket fitting straight trough extrusion molding dies |
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2019
- 2019-10-09 CN CN201910954098.7A patent/CN110576138A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130202A (en) * | 2007-09-18 | 2008-02-27 | 徐国兴 | Method for smithing aluminium alloy wheel hub of vehicle and smithing mold thereof |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN104493484A (en) * | 2014-02-18 | 2015-04-08 | 金华永乐矿山机械有限公司 | Belt wheel flangeless forging process of electromagnetic clutch of automotive air conditioner |
| CN106378407A (en) * | 2016-11-29 | 2017-02-08 | 洛阳秦汉精工股份有限公司 | Composite semisolid stamp-forging mold device |
| CN206483951U (en) * | 2017-01-13 | 2017-09-12 | 四川龙擎汽车部件制造有限公司 | A kind of valve hot-forging die |
| CN206779172U (en) * | 2017-05-23 | 2017-12-22 | 河南经纬电力科技股份有限公司 | A kind of used in composite insulator ball-and-socket gold utensil extrusion molding dies |
| CN108311622A (en) * | 2018-01-22 | 2018-07-24 | 宾科汽车紧固件（昆山）有限公司 | Vacuum generator rotor forming method in automobile engine |
| CN208613664U (en) * | 2018-08-22 | 2019-03-19 | 河南经纬电力科技股份有限公司 | A kind of Compound insulator ball socket fitting straight trough extrusion molding dies |
| CN109226650A (en) * | 2018-11-20 | 2019-01-18 | 东莞市正品五金电子有限公司 | A kind of molding die and its processing method of gear shaft cold extrusion processing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112536413A (en) * | 2020-11-02 | 2021-03-23 | 无锡昌至盛机械制造有限公司 | Integrated production process of lower end hardware fitting and forging die thereof |
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Application publication date: 20191217 |