CN101214604B - Manufacturing process method for fork of forklift truck - Google Patents
Manufacturing process method for fork of forklift truck Download PDFInfo
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- CN101214604B CN101214604B CN200810013709XA CN200810013709A CN101214604B CN 101214604 B CN101214604 B CN 101214604B CN 200810013709X A CN200810013709X A CN 200810013709XA CN 200810013709 A CN200810013709 A CN 200810013709A CN 101214604 B CN101214604 B CN 101214604B
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- fork
- pallet fork
- forklift truck
- cutting
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Abstract
The present invention discloses a novel technique of producing the pallet fork of a forklift, which belongs to the field of mechanical production technology. Based on the summary of blank forming by drawing out, the reversal thinking is applied, a partially eccentric upsetting method is applied, a compensating lug boss is formed in the middle of a pallet fork blank by upsetting after part of a post-rolling rectangular or square billet is heated, and the inclined plane of the fork body is formed by cutting, rolling or sawing. The technique is characterized in that the compactness and streamline of the internal metal texture of the pallet fork are good, the cost is lower than the cost of forging the pallet fork, the heating cost is saved by 100 yuan per ton, the processing cost is saved by 60 yuan per ton, and the profile pallet fork preserves the flatness and good appearance of the surface of a rolled stock.
Description
Technical field
The invention discloses a kind of new technology of making fork of forklift truck, belong to machinery manufacturing technology field.
Background technology
Pallet fork is the steel component of a kind of " L " type, is installed on fork truck or the lifting engineering truck, is used to hold up various weights.According to the bearing capacity of pallet fork, design has multiple cross section specification, and every kind of specification can have multiple horizontal section length.According to the specific (special) requirements of pallet fork safety in utilization, the regulation root thickness is more than 1.2 times of other position thickness in the pallet fork standard, and production brings certain difficulty to pallet fork in this requirement.
The main method of domestic production pallet fork blank is with forging making after the steel billet heating at present.Employing forges explained hereafter pallet fork blank needs large-tonnage forging hammer and Large-scale Heater.In heating process, to consume a large amount of energy, and produce a large amount of toxic and harmfuls; Can produce huge noise and potential safety hazard in forging process, pallet fork blank presentation quality is poor, and worker's labour intensity is big, and production efficiency is low.Therefore developed country does not produce pallet fork home, and purchases to developing country, and China is exactly important pallet fork production base, and annual output surpasses 1,000,000, brings great threat for energy resources, environment and the workers ' safety of China.
Summary of the invention
Task of the present invention provides the method for manufacturing technology of the fork of forklift truck of a kind of high efficiency, low cost, high-quality, pollution-free, low labour intensity.
The technical characterictic of process of the present invention is on the basis of summing up the draw out base, adopt reverse thinking, utilize the partial eccentricity method for upsetting, jumping-up after rectangle after rolling or the square base local heat is formed the compensation boss at pallet fork blank middle part, and the inclined-plane of fork body is formed by cutting, rolling or sawing.
The method of manufacturing technology of this fork of forklift truck is as follows:
1, gets rectangle identical or square long strip type steel with the pallet fork cross section;
2, cut off the long strip type steel by technological requirement length, and cut out required inclined-plane;
3, after the section bar base bar bending part local heat after the cutting, gathering stock is shaped and utilizes waste heat to be bent into the pallet fork shape in mold cavity;
4, by size cutting two ends;
5, modifier treatment;
6, shaping;
7, welding hook;
8, spray paint, check and pack.
The local heat method can be that electrical heating also can be a flame heat.
The jumping-up mode can be that eccentric jumping-up also can be non-eccentricity jumping-up (generally adopting eccentric jumping-up).But behind the gathering stock shape of pallet fork blank can two-sided boss also single face boss.
Mould structure can be that open type also can be an enclosed; Modular structure can be that monoblock type is can be combined type.
Jumping-up external force can be mechanical force, hydraulic coupling, liquid gas mixing force.
Process characteristic:
1, section bar pallet fork metal inside dense structure property and metal structure streamline are better, and the rolling of section bar pallet fork is continuous modification, and the metal structure streamline is injury-free, high conformity; Section bar pallet fork root boss is that rolling back compact metal organizes jumping-up to form, and has passed through jumping-up and two kinds of distortion of pulling, forms finer and close metal structure.
2, section bar pallet fork cost is than forging low 883 yuan/ton of pallet fork cost
Two kinds of technologies have many operation differences, and the cost difference mainly between these operations, specifically is compared as follows:
(1) forging pallet fork blank cost is 6250 yuan/ton (40Gr), and section bar pallet fork blank cost is 5527 yuan/ton, reduces by 723 yuan/ton.
(2) utilize directly simmering and bending of waste heat behind the section bar pallet fork jumping-up, save 100 yuan/ton of heating expenses.
(3) section bar pallet fork sectional dimension tolerance reaches below 0.3 millimeter, saves 60 yuan/ton of processing charges
3, section bar pallet fork production efficiency is than forging the high 4-6 of pallet fork production efficiency doubly.Forging class is per capita produced 10, and section bar jumping-up class's product 40-60 per capita props up.
4, the section bar pallet fork has kept the straight, attractive in appearance of stocking surface.
Description of drawings
Accompanying drawing 1 is a technical process diagram schematic diagram of the present invention.
Accompanying drawing 2 is schematic diagrames that technical process of the present invention cuts out required inclined-plane.
Accompanying drawing 3 be of the present invention in special die cavity the technical process diagram schematic diagram of partial eccentricity upsetting formation.
Accompanying drawing 4 is structural representations of the special mould of jumping-up of the present invention.
Accompanying drawing 5 is right views of accompanying drawing 4.
The specific embodiment
Embodiment:
1, rolling or with the sheet material cutting rectangle identical or square rectangular with the pallet fork cross section.
2, the rectangular pallet fork length of pressing after rolling or the cutting is cut off, and cut out the inclined-plane.(seeing accompanying drawing two)
3, after the section bar base bar local heat after the cutting, partial eccentricity upsetting formation in special die cavity, and utilize the waste heat bending.(seeing accompanying drawing three)
The local heat method can be that electrical heating also can be a flame heat;
The jumping-up mode can be that eccentric jumping-up also can be non-eccentricity jumping-up (generally adopting eccentric jumping-up);
Mould structure can be that open type also can be an enclosed; Modular structure can be that monoblock type is can be combined type;
Jumping-up external force can be mechanical force, hydraulic coupling, liquid gas mixing force;
4, cutting two ends 5, modifier treatment
6, shaping 7, welding hook
8, jet packing
Claims (5)
1. the method for manufacturing technology of a fork of forklift truck is characterized in that:
A, get the rectangle long strip type steel identical with the pallet fork cross section;
B, cut off rectangle long strip type steel, and cut out required inclined-plane by technological requirement length;
After the rectangle long strip type steel bending part local heat after c, the cutting, gathering stock is shaped and utilizes waste heat to be bent into the pallet fork shape in mold cavity;
D, by size cutting two ends;
E, modifier treatment;
F, shaping;
G, welding hook;
H, spray paint, check and pack.
2. the method for manufacturing technology of fork of forklift truck according to claim 1, what it is characterized in that pallet fork blank behind the gathering stock is shaped as two-sided boss or single face boss.
3. the method for manufacturing technology of fork of forklift truck according to claim 1 is characterized in that the preparation method on pallet fork inclined-plane is cutting.
4. the method for manufacturing technology of fork of forklift truck according to claim 1 is characterized in that the strip steel are rolling or the sheet material cutting forms.
5. the method for manufacturing technology of fork of forklift truck according to claim 3, it is rolling to it is characterized in that described cutting replaces with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810013709XA CN101214604B (en) | 2008-01-07 | 2008-01-07 | Manufacturing process method for fork of forklift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810013709XA CN101214604B (en) | 2008-01-07 | 2008-01-07 | Manufacturing process method for fork of forklift truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101214604A CN101214604A (en) | 2008-07-09 |
| CN101214604B true CN101214604B (en) | 2010-04-21 |
Family
ID=39621144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810013709XA Expired - Fee Related CN101214604B (en) | 2008-01-07 | 2008-01-07 | Manufacturing process method for fork of forklift truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101214604B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201231186A (en) * | 2011-01-28 | 2012-08-01 | Ying-Jie Chen | Method for manufacturing metallic tool |
| CN102814622B (en) * | 2011-06-09 | 2014-12-10 | 宁波韧霸货叉有限公司 | Manufacture method for fork of forklift |
| CN104555824A (en) * | 2014-11-25 | 2015-04-29 | 宁波韧霸货叉有限公司 | Forklift fork and preparation method thereof |
| CN113020909A (en) * | 2021-03-11 | 2021-06-25 | 山东泰金斯锻造有限公司 | Integrated forming method for front fork of forklift |
| CN113042589A (en) * | 2021-03-11 | 2021-06-29 | 山东泰金斯锻造有限公司 | Fork truck front fork bending machine processingequipment |
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2008
- 2008-01-07 CN CN200810013709XA patent/CN101214604B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101214604A (en) | 2008-07-09 |
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| PB01 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20160107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |