CN201832943U - Forward extrusion female die for forging of pick sleeve - Google Patents

Forward extrusion female die for forging of pick sleeve Download PDF

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Publication number
CN201832943U
CN201832943U CN2010205304570U CN201020530457U CN201832943U CN 201832943 U CN201832943 U CN 201832943U CN 2010205304570 U CN2010205304570 U CN 2010205304570U CN 201020530457 U CN201020530457 U CN 201020530457U CN 201832943 U CN201832943 U CN 201832943U
Authority
CN
China
Prior art keywords
die
female die
diameter
cavity
sleeve
Prior art date
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.)
Expired - Lifetime
Application number
CN2010205304570U
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Chinese (zh)
Inventor
万永福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Winner Machinery Co Ltd
Original Assignee
Jiangsu Winner Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Winner Machinery Co Ltd filed Critical Jiangsu Winner Machinery Co Ltd
Priority to CN2010205304570U priority Critical patent/CN201832943U/en
Application granted granted Critical
Publication of CN201832943U publication Critical patent/CN201832943U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a forward extrusion female die for forging of a pick sleeve. The forward extrusion female die comprises a male die, a female die, a prestress middle sleeve, a prestress outer sleeve and an ejector. The ejector is arranged at the bottom of the female die, the prestress middle sleeve is arranged between the prestress outer sleeve and the female die, the male die is composed of two cylinders of different diameters, the diameter of the lower section of the male die is smaller than that the upper section, an inner cavity of the female die includes two cylindrical cavities of different diameters and a transitional cavity between the two cylindrical cavities, the upper section of the male die matches with the larger-diameter cylindrical cavity of the female die, the diameter of the lower section of the male die is smaller than that of the smaller cylindrical cavity of the female die, and a reserved cavity is formed among the ejector, the female die, the male die and the pick sleeve. Metal volume is distributed reasonably through the extrusion technology, shortcomings of high processing difficulty and waste of raw materials of the mechanical processing method in the prior art are overcome, manufacturing cost is reduced while production cycle is shortened, and further production process is stable and product pass rate is increased.

Description

Pick tooth boots forge and just squeeze die
Technical field
The utility model relates to the mining machine field, relates in particular to a kind of pick tooth boots forging mold that coal industry is used for coal-winning machine.
Background technology
Pick tooth boots are used on the mining machine, and particularly the colliery is a large amount of a kind of attrition components that use of equipment such as coal industry coal-winning machine, development machine with pick tooth boots.Pick, tooth boots damage easily, have increased the number of times of equipment replacement pick tooth boots such as coal-winning machine, development machine, lose time, and inefficiency simultaneously, has also increased cost of mining.The shortcoming of pick tooth boots machining is that forming process is long, material consumption is many, product percent of pass is low, forming efficiency is poor.Manufacturing firm all adopts inner chamber precision forging blank technology both at home and abroad at present, is shaped to have the hollow cylinder of size end, can satisfy required precision like this, has reduced manufacturing cost and cycle again, also meets the trend of world today's development of manufacturing simultaneously.
Summary of the invention
A kind of pick tooth boots that the purpose of this utility model provides forge and just squeeze die, cylinder small end and the big end of preform by extrusion process elder generation shaping pick tooth boots, and internal diameter is constant, solves existing big, the technical problems such as material consumption is many, product percent of pass is low, forming efficiency difference of machined difficulty.
The technical scheme that its technical problem that solves the utility model adopts is as follows:
Pick tooth boots forge and just squeeze die, comprise punch, die, overlap in the prestressing force, prestressing force overcoat and stripping attachment, described stripping attachment is located at the bottom of die, be provided with in the prestressing force between prestressing force overcoat and the die and overlap, described punch is two cylinders that diameter differs, the hypomere diameter of described punch is less than the epimere diameter, the inner chamber of described die is the cylinder cavity that differs of two diameters and the adapter cavity between them, the larger diameter cylinder cavity of described punch epimere and die matches, described punch hypomere diameter less than die cylinder cavity than minor diameter, described stripping attachment, be provided with the reservation cavity between die and punch and the pick tooth boots.
The utility model utilizes the variation of punch cylinder diameter and die intracavity diameter, reasonably carry out metal volume distribution in the extrusion process, two hollow circular cylinders that form that size diameter differs and the changeover portion between them, and internal diameter is constant, has solved technical problems such as existing machined difficulty is big, material consumption is many, product percent of pass is low, forming efficiency difference.
The beneficial effects of the utility model are: the utility model is on the basis of pick tooth boots intensity and precision, according to the metal flow shaping characteristic, adopt extrusion technique reasonably to carry out metal volume distribution, both overcome that prior art machine-tooled method production and processing difficulty is big, the phenomenon of waste of raw materials, reduced manufacturing cost again, shortened the production cycle simultaneously, and stable processing technique, product percent of pass improved.
Description of drawings
Fig. 1 structural representation of the present utility model
Sequence number among the figure: 1, punch, 2, die, 3, overlap in the prestressing force, 4, the prestressing force overcoat, 5, stripping attachment, 6, pick tooth boots, 7, reserve cavity.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Referring to Fig. 1, a kind of pick tooth boots forge and just squeeze die, comprise punch 1, die 2, overlap 3 in the prestressing force, prestressing force overcoat 4 and stripping attachment 5, described stripping attachment 5 is located at the bottom of die 2, be provided with between prestressing force overcoat 4 and the die 2 and overlap 3 in the prestressing force, two cylinders that described punch 1 differs for diameter, the hypomere diameter of described punch 1 is less than the epimere diameter, the inner chamber of described die 2 is the cylinder cavity that differs of two diameters and the adapter cavity between them, the larger diameter cylinder cavity of described punch 1 epimere and die 2 matches, described punch 1 hypomere diameter less than die 2 cylinder cavitys than minor diameter, described stripping attachment 5, be provided with between die 2 and punch 1 and the pick tooth boots 6 and reserve cavity 7.
Use the 400T punching machine, die 1 is installed on four guide pillar universal die sets, overlap 3 in the prestressing force, prestressing force overcoat 4 and stripping attachment 5, the hollow circular cylinder blank is placed in the die 1 larger diameter cylinder cavity, pressing down punch 1 by drift forges, making blank and punch 1 not hindered simultaneously by stripping attachment 5 flows to die 2 circle with a smaller diameter cylinder cavitys, reasonably carry out metal volume distribution in the extrusion process, the hollow circuit cylinder small end and the big end of cylinder preform of elder generation's shaping pick tooth boots, two hollow circular cylinders that form that size diameter differs and the changeover portion between them, reaching does not once have waste material and is shaped only.
Embodiment is just for the ease of understanding the technical solution of the utility model; do not constitute restriction to the utility model protection domain; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present utility model above scheme being done that does not break away from technical solutions of the utility model all still belongs within the utility model protection domain.

Claims (1)

1. pick tooth boots forge and just squeeze die, comprise punch (1), die (2), cover (3) in the prestressing force, prestressing force overcoat (4) and stripping attachment (5), described stripping attachment (5) is located at the bottom of die (2), be provided with cover (3) in the prestressing force between prestressing force overcoat (4) and the die (2), it is characterized in that: two cylinders that described punch (1) differs for diameter, the hypomere diameter of described punch (1) is less than the epimere diameter, the inner chamber of described die (2) is the cylinder cavity that differs of two diameters and the adapter cavity between them, the larger diameter cylinder cavity of described punch (1) epimere and die (2) matches, described punch (1) hypomere diameter less than die (2) cylinder cavity than minor diameter, described stripping attachment (5), be provided with between die (2) and punch (1) and the pick tooth boots (6) and reserve cavity (7).
CN2010205304570U 2010-09-10 2010-09-10 Forward extrusion female die for forging of pick sleeve Expired - Lifetime CN201832943U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205304570U CN201832943U (en) 2010-09-10 2010-09-10 Forward extrusion female die for forging of pick sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205304570U CN201832943U (en) 2010-09-10 2010-09-10 Forward extrusion female die for forging of pick sleeve

Publications (1)

Publication Number Publication Date
CN201832943U true CN201832943U (en) 2011-05-18

Family

ID=44003037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205304570U Expired - Lifetime CN201832943U (en) 2010-09-10 2010-09-10 Forward extrusion female die for forging of pick sleeve

Country Status (1)

Country Link
CN (1) CN201832943U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962489A (en) * 2014-03-24 2014-08-06 大丰市中德精锻件有限公司 Cutting tooth forge piece forming die upper die structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962489A (en) * 2014-03-24 2014-08-06 大丰市中德精锻件有限公司 Cutting tooth forge piece forming die upper die structure

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20110518

CX01 Expiry of patent term