CN1817503A - Precisioning forging method of crawler belt plate - Google Patents
Precisioning forging method of crawler belt plate Download PDFInfo
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- CN1817503A CN1817503A CN 200610067704 CN200610067704A CN1817503A CN 1817503 A CN1817503 A CN 1817503A CN 200610067704 CN200610067704 CN 200610067704 CN 200610067704 A CN200610067704 A CN 200610067704A CN 1817503 A CN1817503 A CN 1817503A
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Abstract
A precise forging method for manufacturing the plate of caterpillar belt by use of punch head, and upper and lower cavity dies features that as there is low friction between metal workpiece and upper and lower cavity dies, only the punch head is abraded. Its advantages are low power requirement, high size precision of workpiece and long service life.
Description
Technical field:
The invention belongs to the forging field, relate to a kind of precisioning forging method of crawler belt plate specifically.
Background technology:
Creeper tread is an of paramount importance part in the tracked armored vehicle walking mechanism, because therefore its material forming poor-performing, complex-shaped and serviceability is harsh has determined that creeper tread Forging Technology difficulty is very big.This forging is complex-shaped, geometric accuracy requires high (especially intermediate thin floor dimension precision requirement is very high) and row position tolerance height, the Forging Technology performance is very poor, tissue is produced difficulty, problem such as have percent defective, defective products rate height in actual production, the forging die life-span is low and stock utilization is low.Therefore, develop this type of part forming better performances, the higher precision forging process method of forming quality quite is subjected to domestic and international attention.
At present, this forging mainly adopts conventional open die forging, impressing forging technology to forge, and four work steps such as process is flattened, blocking, finish-forging, side cut are shaped.For example adopt open die forging, impressing forging technology on the 250MN friction press,---open type blocking---open type finish-forging---is cut edge and is waited four work steps to be shaped through flattening.There are shortcomings such as stock utilization is low, forging cost height, the forging ' s block dimension precision is low, the forging die life-span is low in this technology.
Summary of the invention:
The purpose of this invention is to provide lower cavity die in a kind of employing, drift forging method, realize a kind of precisioning forging method of crawler belt plate that the creeper tread precision forging is shaped by forging mold, to overcome above-mentioned deficiency.
The objective of the invention is to realize by following technical scheme:
A kind of creeper tread precision forging comprises drift, upper and lower die, and be characterized in: precisioning forging method of crawler belt plate is as follows: round bar is flattened; Flat material is put into lower cavity die, and upper cavity die and lower cavity die matched moulds clamp flat material, realizes the accurate location of flat material; Drift is descending, pushes flat material, and metal is forced to flow and is full of die cavity, and all operation finishes extrusion modling creeper tread product of the present invention.
Adopt precisioning forging method of crawler belt plate of the present invention, because in the forming process, relative friction is little between last lower cavity die and metal stock, the very simple drift of shape is the parts of main taking up wear, therefore not only can significantly improve the service life of lower cavity die, can also reduce mould repair expense greatly, this process for forging can reach and reduce the equipment needed thereby tonnage, improve forging ' s block dimension precision and the purpose of die life, realize the Forging Technology of creeper tread precision form owing to adopt drift extrusion metal blank, do not form overlap, simplified forging process, reduced deformation force, compared with conventional process for forging, forging load has reduced about 50%, stock utilization reaches about 95%, and the present invention can not only reach high-quality, during joint and energy-conservation effect, can also improve the dimensional accuracy of forging and the service life of mould significantly.
Description of drawings:
Fig. 1 is a punch structure schematic diagram of the present invention;
Fig. 2 is a upper cavity die structural representation of the present invention;
Fig. 3 is the flat material structural representation of the present invention;
Fig. 4 is a lower cavity die structural representation of the present invention;
Fig. 5 is the structural representation of creeper tread forging molding of the present invention.
The specific embodiment:
Embodiment:
Below in conjunction with accompanying drawing the present invention is further described:
The present invention is extremely shown in Figure 5 by Fig. 1, form by drift 1, upper cavity die 2, flat material 3, lower cavity die 4, creeper tread 5, at first round bar is flattened, then flat material 3 is put into lower cavity die 4, with upper cavity die 2 and lower cavity die 4 matched moulds, the last flat material 3 of drift 1 descending extruding, metal are forced to flow and are full of die cavity to finish whole forging method as follows: 1. round bar is flattened; 2. flat material 3 is put into lower cavity die 4, and upper cavity die 2 and lower cavity die 4 matched moulds clamp flat material 3, realize the accurate location of flat material; 3. drift 1 is descending, pushes flat material 3, and metal is forced to flow and is full of die cavity, and all operation finishes extrusion modling creeper tread 5 products of the present invention.
At first should design heat forging drawing, and calculate the diameter and the length of required blank according to product parts figure; Close the method design in principle according to the present invention then and can divide lower cavity die, drift extrusion molding forging die; Power energy parameters such as an extruding force when scheming to calculate distortion and a mould power according to above two, and select pressing mold power load mode and Type of equipment; Select suitable mold materials and heat treatment mode at last, and select the suitable lubricant material and the preheating and the type of cooling of mould.
Because the mode that adopts the middle floor of upper punch squeeze tracks plate forging to force metal flow to be full of die cavity is shaped, and the area of floor only is 1/3 of a whole creeper tread frontal area, the load area of mould reduces greatly, therefore the required equipment tonnage that is shaped also significantly reduces, it only is about 50% of conventional Forging Technology equipment needed thereby tonnage, this mould structure and mode of texturing force metal to flow to the die cavity depths under the three-dimensional compressive stress state, and do not form overlap, therefore required deformation force is little, the metal flow performance is good, forging forming dimensional accuracy height, especially be beneficial to creeper tread with complicated shape, because in the forming process, upper and lower mould and intermetallic phase are little to rubbing, so main taking up wear of drift of simple shape, not only can significantly improve the lower cavity die life-span, can also reduce mould repair expense, this process for forging can reach and reduce the equipment needed thereby tonnage, improve forging ' s block dimension precision and the purpose of die life, owing to adopt drift extrusion molding Forging Technology, do not form overlap, therefore simplified forging process, reduced deformation force, compare forging load with routine and reduce about 50%, stock utilization can reach more than 95%, saved material, the present invention not only can reach high-quality, during joint and energy-conservation effect, the service life that can also improve mould significantly.
Claims (1)
1, a kind of creeper tread precision forging comprises drift, upper and lower die, and be characterized in: precisioning forging method of crawler belt plate is as follows: round bar is flattened; Flat material is put into lower cavity die, and upper cavity die and lower cavity die matched moulds clamp flat material, realizes the accurate location of flat material; Drift is descending, pushes flat material, and metal is forced to flow and is full of die cavity, and all operation finishes extrusion modling creeper tread product of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610067704 CN1817503A (en) | 2006-03-09 | 2006-03-09 | Precisioning forging method of crawler belt plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610067704 CN1817503A (en) | 2006-03-09 | 2006-03-09 | Precisioning forging method of crawler belt plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1817503A true CN1817503A (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610067704 Pending CN1817503A (en) | 2006-03-09 | 2006-03-09 | Precisioning forging method of crawler belt plate |
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| CN (1) | CN1817503A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240887A (en) * | 2011-04-28 | 2011-11-16 | 山推工程机械股份有限公司 | Method and tooling for remodeling creeper tread |
| CN109465367A (en) * | 2018-11-05 | 2019-03-15 | 北京北方车辆集团有限公司 | A kind of creeper tread forging method |
| CN111203504A (en) * | 2020-01-06 | 2020-05-29 | 济宁市宁润文正锻造有限公司 | Forging production method of large-size track shoe |
| CN112453297A (en) * | 2020-10-23 | 2021-03-09 | 北京北方车辆集团有限公司 | Forging and forming method of connected track shoe forging hammer |
-
2006
- 2006-03-09 CN CN 200610067704 patent/CN1817503A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240887A (en) * | 2011-04-28 | 2011-11-16 | 山推工程机械股份有限公司 | Method and tooling for remodeling creeper tread |
| CN102240887B (en) * | 2011-04-28 | 2012-07-04 | 山推工程机械股份有限公司 | Method and tooling for remodeling creeper tread |
| CN109465367A (en) * | 2018-11-05 | 2019-03-15 | 北京北方车辆集团有限公司 | A kind of creeper tread forging method |
| CN111203504A (en) * | 2020-01-06 | 2020-05-29 | 济宁市宁润文正锻造有限公司 | Forging production method of large-size track shoe |
| CN111203504B (en) * | 2020-01-06 | 2022-09-13 | 济宁市宁润文正锻造有限公司 | Forging production method of large-size track shoe |
| CN112453297A (en) * | 2020-10-23 | 2021-03-09 | 北京北方车辆集团有限公司 | Forging and forming method of connected track shoe forging hammer |
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