CN109465367A - A kind of creeper tread forging method - Google Patents
A kind of creeper tread forging method Download PDFInfo
- Publication number
- CN109465367A CN109465367A CN201811308960.9A CN201811308960A CN109465367A CN 109465367 A CN109465367 A CN 109465367A CN 201811308960 A CN201811308960 A CN 201811308960A CN 109465367 A CN109465367 A CN 109465367A
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- China
- Prior art keywords
- creeper tread
- forging
- type groove
- blocking type
- finishing cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/022—Open die forging
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of creeper tread forging forming methods, belong to technical field of forging, solve the problem of that the big product minimum wall thickness (MINI W.) of product mismatch amount cannot be guaranteed in creeper tread forging and molding, improve creeper tread quality and production efficiency.Method includes the following steps: step 1: first designing creeper tread forging die, including blocking type groove, finishing cavity.The blocking type groove is whole on the basis of the plane of symmetry of the not spud of creeper tread to be moved up；The finishing cavity is with the centrosymmetric of creeper tread；Step 2: the round bar of heating is put into creeper tread forging die blocking type groove and carries out base by processing creeper tread hot forging；Blank after base is put into finishing cavity and carries out finish-forging, the complete forging of type is filled in acquisition, improves formed product qualification rate, improves production efficiency, meets the needs of mass production.
Description
Technical field
The invention belongs to armored vehicle technical field of forging, are related to a kind of armored vehicle creeper tread hot-die forging forming process.
Background technique
The crawler belt effect of tracked armored vehicle is that the power of vehicle is passed to ground, and forming driving force keeps vehicle complete
At traveling task, the quality of creeper tread hot forging forming is to the key factor for ensuring to produce high-quality crawler belt.
Since " 15 ", company undertakes state key project financing " crawler type armo(u)red carrier ", and wherein track components are its rows
The critical component of part is walked, radix is very big, and since structure is complicated for creeper tread, creeper tread shown in especially as shown in the figure 1 is needed
The amount of asking is very big, and the crawler belt forging that factory produces every year reaches hundreds of thousands of, belongs to typical and produces property in enormous quantities.
Since greatly, the ratio between thickness and depth are smaller for section thickness variation at spud in creeper tread as shown in Figure 1, gold
Belong to and be difficult to be filled to top herein, so that it is imperfect and cause scrap of the product to cause forging to fill type；Simultaneously because current forging die
It is more than that 1.5mm causes scrap of the product that itself, which causes creeper tread mismatch amount without positioning device, and current creeper tread comprehensive qualified rate is
81%, since the impact of mold causes greatly the premature failure of mold very much, seriously affect going on smoothly for production.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is to a kind of creeper tread forging forming methods of proposition, solve creeper tread forging
The problem of product mismatch amount is big in forming, and product minimum wall thickness (MINI W.) cannot be guaranteed, improves creeper tread quality and production efficiency.
By mould structure used in optimization creeper tread forging and molding, the structure is by designing reasonable blocking type groove
The thickness of depth and bridge mouth, the mode for carrying out controlled forge process process metal flow, which obtains, fills the complete forging of type, while reducing metal
Blank is to the impact of mold and then the service life of raising mold；Inclined by the mismatch that seaming and press machine positioning reduce forging
To raising product quality improves the quality and production efficiency of product in terms of two.
(2) technical solution
The technical scheme is that a kind of manufacturing method of creeper tread, method the following steps are included:
Step 1: design creeper tread forging die, the creeper tread forging die: including upper mold (1), lower die (2)；
Upper mold (1) includes upper blocking type groove, upper finishing cavity, positions strong (4)；Lower die includes lower blocking type groove, lower finish-forging
Type groove, seaming (3)；Upper blocking type groove, lower blocking type groove cooperatively form blocking type groove (5)；Upper finishing cavity, lower finishing cavity
Cooperatively form finishing cavity (6)；Finishing cavity is to be divided into two up and down by symmetry axis of two circle center line connectings of creeper tread hot forging
Point；For blocking type groove, the following part of the circle center line connecting of corresponding two semicircles of creeper tread hot forging connects with apart from the center of circle
The above section symmetrical configuration of upward 3 millimeters of the parallel lines of line；The blocking type groove structure of the following part of the circle center line connecting and
The following part-structure of finishing cavity symmetry axis is identical；The blocking type groove structure and finishing cavity of parallel lines above section are symmetrical
Axis above section structure is identical；Finishing cavity bridge mouth is sized to 4 millimeters in the depth direction of finishing cavity；Creeper tread
Spud (7) is partially in upper mold；Upper and lower mould middle position setting seaming (3) and positioning strong (4) cooperation are positioned；
Step 2: the round bar of heating is put into the blocking type groove of creeper tread forging die and carries out in advance by forging creeper tread forging
Forging makes blank obtain the blank full of blocking type groove after blocking, then blank is put into the finishing cavity of creeper tread forging die
Middle carry out finish-forging, extra metal pour in flash gutters.
Preferably, bridge minister's degree of the bridge mouth of creeper tread forging die is 10mm, and the storehouse portion depth of bridge mouth is 10mm.
The specific structure size of creeper tread manufactured by the above method are as follows: creeper tread overall thickness is 63.4mm, removes spud
Except middle section part with a thickness of 47mm；The diameter 49.4mm of creeper tread end column part.
The principle of the present invention is:
Creeper tread forging method of the invention is combined including design blocking groove depth, the thickness of bridge mouth and seaming positioning
Forging mold, fill the complete forging of type to obtain, and improve die life, reduce material consumption.
Since creeper tread is in die design process, in blocking type groove depth as shown in Figure 4 in the design of blocking type groove
Direction increases 3mm, can to increase by 0.44 kilogram of metal, this part metals in forge piece blank reheating position maximum in blocking
The top of the spud of creeper tread is further filled in finish-forging；Reduce simultaneously because realizing metal segments and filling type
The consumption of metal material reduces the impact to mold again, to also just improve the service life of mold.Due to using such as
Locker shown in Fig. 2 reduces product mismatch, improves the consistency of product.
(3) beneficial effect
What the mold of creeper tread was rationally arranged blocking and finish-forging fills type ratio, and setting base, blocking, finish-forging deform ratio,
Guarantee that hitting power is minimum in the good situation of formed product, obtains stable product quality, increases the size of bridge mouth to control
The ratio for increasing metal outflow obtains under the premise of metal material consumption is least and fills the perfect forging of type and reduce pressure again
The pressure demand of power machine increases die life simultaneously；Perfect forging is obtained in the case where most economical.It is sent out by this
Bright, creeper tread qualification rate reaches 95%, and mismatch amount≤0.8mm, die life improves 20%.
Detailed description of the invention
Fig. 1 is track plate structure schematic diagram (wherein spud part is to be most difficult to fill type position)；
Fig. 2 is mold structure diagram；
Fig. 3 is forging process schematic diagram；
Fig. 4 is blocking type groove schematic diagram；
Fig. 5 is finishing cavity schematic diagram；
Fig. 6 is bridge oral area separation structure scale diagrams.
Wherein, 9 be upper mold the direction of motion.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
The technical scheme is that a kind of manufacturing method of creeper tread, method the following steps are included:
Step 1: design creeper tread forging die, the creeper tread forging die: including upper mold 1, lower die 2；
Upper mold 1 includes upper blocking type groove, upper finishing cavity, positioning strong 4；Lower die includes lower blocking type groove, lower finish-forging type
Slot, seaming 3；
Upper blocking type groove, lower blocking type groove cooperatively form blocking type groove 5；
Upper finishing cavity, lower finishing cavity cooperatively form finishing cavity 6；
Finishing cavity is divide into upper part and lower part using two circle center line connectings of creeper tread hot forging as symmetry axis；
For blocking type groove, the following part of the circle center line connecting of two semicircles of creeper tread hot forging connects with apart from the center of circle
The above section symmetrical configuration of upward 3 millimeters of the parallel lines of line；The following part of blocking type groove circle center line connecting and finishing cavity
The following part-structure of symmetry axis is identical；Blocking type groove parallel lines above section and finishing cavity symmetry axis above section structure
It is identical.
Specifically, the blocking type groove is benchmark i.e. size with the plane of symmetry without spud part of creeper tread
It is whole at 25.5mm to move up 3mm；The finishing cavity is with creeper tread without the centrosymmetric of spud part；
Finishing cavity bridge mouth is sized to 4 millimeters in the depth direction of finishing cavity.
Creeper tread spud 7 is partially in upper mold；Seaming 3 is arranged in upper and lower mould middle position and strong 4 cooperation of positioning carries out
Positioning；
Step 2: forging creeper tread forging processes creeper tread hot forging, the round bar of heating is put into creeper tread forging die
Blocking type groove in carry out blocking, so that blank is obtained most of blank for being full of blocking type groove after blocking, then by blank
It is put into the finishing cavity of creeper tread forging die and carries out finish-forging, obtain complete forging, extra metal pours in flash gutters.
Bridge minister's degree of bridge mouth 8 is 10mm, and the storehouse portion depth of bridge mouth is 10mm；
The specific structure size of creeper tread manufactured by the above method are as follows: creeper tread overall thickness is 63.4mm, removes spud
Except middle section part with a thickness of 47mm；The diameter 49.4mm of creeper tread end column part.
In creeper tread forging die, the total depth of blocking type groove is 66.4mm, the depth of middle section part in addition to spud structure
For 51mm.
In creeper tread forging die, the total depth of finishing cavity is 63.4mm, the middle section part in addition to spud with a thickness of
47mm。
Claims (5)
1. a kind of manufacturing method of creeper tread, which is characterized in that method the following steps are included:
Step 1: design creeper tread forging die, the creeper tread forging die: including upper mold (1), lower die (2)；
Upper mold (1) includes upper blocking type groove, upper finishing cavity, positions strong (4)；Lower die include lower blocking type groove, lower finishing cavity,
Seaming (3)；
Upper blocking type groove, lower blocking type groove cooperatively form blocking type groove (5)；
Upper finishing cavity, lower finishing cavity cooperatively form finishing cavity (6)；
Finishing cavity is divide into upper part and lower part using two circle center line connectings of creeper tread hot forging as symmetry axis；
For blocking type groove, the following part of the circle center line connecting of corresponding two semicircles of creeper tread hot forging connects with apart from the center of circle
The above section symmetrical configuration of upward 3 millimeters of the parallel lines of line；The blocking type groove structure of the following part of the circle center line connecting and
The following part-structure of finishing cavity symmetry axis is identical；The blocking type groove structure and finishing cavity symmetry axis of parallel lines above section
Above section structure is identical；
Finishing cavity bridge mouth is sized to 4 millimeters in the depth direction of finishing cavity；
Creeper tread spud (7) is partially in upper mold；Upper and lower mould middle position setting seaming (3) and positioning be good for (4) cooperate into
Row positioning；
Step 2: the round bar of heating is put into the blocking type groove of creeper tread forging die and carries out blocking, makes by forging creeper tread forging
Blank obtains the blank full of blocking type groove after blocking, is then put into blank in the finishing cavity of creeper tread forging die and carries out
Finish-forging, extra metal pour in flash gutters.
2. a kind of manufacturing method of creeper tread according to claim 1, which is characterized in that the bridge of the bridge mouth of creeper tread forging die
Minister's degree is 10mm, and the storehouse portion depth of bridge mouth is 10mm.
3. a kind of manufacturing method of creeper tread according to claim 1, which is characterized in that crawler belt manufactured by the above method
The specific structure size of plate are as follows: creeper tread overall thickness is 63.4mm, and the middle section part in addition to spud is with a thickness of 47mm；Crawler belt
The diameter 49.4mm of plate end column part.
4. a kind of manufacturing method of creeper tread according to claim 1, which is characterized in that in creeper tread forging die, pre- forge
The total depth of slot is 66.4mm, and the depth of middle section part is 51mm in addition to spud structure.
5. a kind of manufacturing method of creeper tread according to claim 1, which is characterized in that in creeper tread forging die, finish-forging type
The total depth of slot is 63.4mm, and the middle section part in addition to spud is with a thickness of 47mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308960.9A CN109465367A (en) | 2018-11-05 | 2018-11-05 | A kind of creeper tread forging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308960.9A CN109465367A (en) | 2018-11-05 | 2018-11-05 | A kind of creeper tread forging method |
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| CN109465367A true CN109465367A (en) | 2019-03-15 |
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| CN201811308960.9A Pending CN109465367A (en) | 2018-11-05 | 2018-11-05 | A kind of creeper tread forging method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449542A (en) * | 2019-09-12 | 2019-11-15 | 哈尔滨工业大学 | A kind of outer circular edge belt length lug forging part manufacturing process |
| CN111069512A (en) * | 2019-12-16 | 2020-04-28 | 北京北方车辆集团有限公司 | Forming method of track shoe for track type thin-shell vehicle |
| 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 |
| CN112338124A (en) * | 2020-09-30 | 2021-02-09 | 贵州安大航空锻造有限责任公司 | Forging method and preforging die for front wing actuator cylinder support beam forge piece |
| 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 |
| CN112642988A (en) * | 2020-11-30 | 2021-04-13 | 陕西宏远航空锻造有限责任公司 | Method for forming saddle high-rib-shaped forging |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449542A (en) * | 2019-09-12 | 2019-11-15 | 哈尔滨工业大学 | A kind of outer circular edge belt length lug forging part manufacturing process |
| CN111069512A (en) * | 2019-12-16 | 2020-04-28 | 北京北方车辆集团有限公司 | Forming method of track shoe for track type thin-shell vehicle |
| CN111069512B (en) * | 2019-12-16 | 2021-02-26 | 北京北方车辆集团有限公司 | Forming method of track shoe for track type thin-shell vehicle |
| 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 |
| CN112338124A (en) * | 2020-09-30 | 2021-02-09 | 贵州安大航空锻造有限责任公司 | Forging method and preforging die for front wing actuator cylinder support beam forge piece |
| 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 |
| CN112642988A (en) * | 2020-11-30 | 2021-04-13 | 陕西宏远航空锻造有限责任公司 | Method for forming saddle high-rib-shaped forging |
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Application publication date: 20190315 |