CN102240733B - Cold pressing die for wheel coupling shaft head of hollow half shaft of electric tricycle differential mechanism - Google Patents
Cold pressing die for wheel coupling shaft head of hollow half shaft of electric tricycle differential mechanism Download PDFInfo
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- CN102240733B CN102240733B CN 201110117680 CN201110117680A CN102240733B CN 102240733 B CN102240733 B CN 102240733B CN 201110117680 CN201110117680 CN 201110117680 CN 201110117680 A CN201110117680 A CN 201110117680A CN 102240733 B CN102240733 B CN 102240733B
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Abstract
The invention discloses a cold pressing die for a wheel coupling shaft head of a hollow half shaft of an electric tricycle differential mechanism, belonging to the technical field of the electric tricycles. The invention invented by the applicant is a special die for the wheel coupling shaft head of the electric tricycle. A male die is installed on a press slider by a male die fixing sleeve. A female die is composed of an upper female die and a lower female die; the upper female die is inserted into the step hole of the male die fixing sleeve; a lower female die fixing plate is installed on a press workbench; and a pressure spring is arranged in the male die fixing sleeve. The inner hole of the upper female die has the same diameter with the matching section of a diameter-variable round tube; the cylindrical inner cavity of the lower female die is sequentially provided with step holes from the top down which are respectively same as a basic shaft, a bearing matching section, a wheel matching section and a thread section in shape and size. One withdrawal pole is a stepped cylinder with a lower end installed on a withdrawal strut, the other rectangular withdrawal pole is sleeved on the strut fixing brackets and matched with the same in a sliding manner, and the upper ends of the strut fixing brackets are connected with the lower end of the press workbench by bolts; and hooks are arranged between the press slider and the rectangular withdrawal strut.
Description
Technical field
The present invention relates to a kind of electro-tricycle, be specifically related to a kind of shaft wheel-connecting shaft-head cold-pressing mould with forcing press processing electric-tricycle differential hollow half.
Background technology
The differential semiaxis that electro-tricycle uses now all is with the solid shafting of bar through the machining moulding, has following shortcoming:
1, solid semiaxis materials are many, and material cost is high, and business efficiency is low.
2, machining is cut off the metal inside fiber, and intensity is low, poor rigidity, and service life is short.
3, the semiaxis of machining, surface roughness and case hardness are not high, affect quality and the service life of car load.
4, machining production efficiency is low, and production cost is high, and business efficiency is low.
The applicant has invented a kind of differential hollow half axis for electric tricycle, and hollow half axle connects three sections of spindle noses by shaft wheel-connecting shaft-head, reducing pipe and differential gear and connects to form by the thermal type interference.If wherein the processing of shaft wheel-connecting shaft-head is with traditional machining, production cost is high inevitable high.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of shaft wheel-connecting shaft-head cold-pressing mould of electric-tricycle differential hollow half, utilize this mould on forcing press with an extrusion modling of circular bar.
The present invention is achieved through the following technical solutions: a kind of shaft wheel-connecting shaft-head cold-pressing mould of electric-tricycle differential hollow half, it comprises punch, die and material returned bar.It is characterized in that: described punch is stepped cylinder, and there is the flange I upper end, and described flange I is installed on the press ram by the punch fixed cover.Described die is comprised of upper cavity die and lower cavity die two parts, and described upper cavity die is the step tubular, and there is the flange II upper end, and upper cavity die is inserted in the stepped hole of punch fixed cover, between flange II and the flange I stage clip is set; The Inner hole of upper cavity die cooperates the section diameter identical with the reducing pipe of shaft wheel-connecting shaft-head to be processed; Described lower cavity die is tubular, the lower cavity die lower end is fixed on the lower cavity die fixed head, the lower cavity die fixed head is described to be installed on the press bench, and the Inner chamber of lower cavity die tubular makes and standard shaft, bearing fit section, the wheel section of cooperation and the thread segment shape of shaft wheel-connecting shaft-head to be processed, measure-alike stepped hole from top to bottom successively; Described material returned bar is stepped cylinder, and the lower end is placed on the material returned pressure pin; Described material returned pressure pin is rectangular shaft, and the rectangular shaft sliding fit is sleeved on the pressure pin fixed mount; Described pressure pin fixed mount is two, and it is shaped as square type groove, and square type groove upper end is connected with the press bench lower end by bolt; Between press ram and material returned pressure pin, drag hook is set.
Good effect of the present invention is:
1, mould structure is reasonable, and intensity is high, good rigidly, long service life.
When 2, press ram was up, material returned bar was convenient in demoulding fast automatically with the workpiece automatic ejection that processes, and production efficiency is high.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the shaft wheel-connecting shaft-head structural representation of generation processing.
Among the figure: 1, press ram, 2, the punch fixed cover, 3, punch, 3-1, flange I, 4, stage clip, 5, upper cavity die, 5-1, flange II, 6, shaft wheel-connecting shaft-head to be processed, 6-1, reducing pipe cooperate section, 6-2, standard shaft, 6-3, bearing fit section, 6-4, wheel cooperate section, 6-5, thread segment, 7, lower cavity die, 8, lower cavity die fixed head, 9, press bench, 10, material returned bar, 11, pressure pin fixed mount, 12, material returned pressure pin, 13, drag hook.
The specific embodiment
Shown in accompanying drawing 1,2,3: a kind of shaft wheel-connecting shaft-head cold-pressing mould of electric-tricycle differential hollow half, it comprises punch 3, die and material returned bar 10; It is characterized in that: described punch 3 is stepped cylinder, and there is flange I 3-1 the upper end, and described flange I 3-1 is installed on the press ram 1 by punch fixed cover 2; Described die is comprised of upper cavity die 5 and lower cavity die 7 two parts, and described upper cavity die 5 is the step tubular, and there is flange II 5-1 the upper end, and upper cavity die 5 is inserted in the stepped hole of punch fixed cover 2, between flange II 5-1 and the flange I 3-1 stage clip 4 is set; The Inner hole of upper cavity die 5 cooperates section 6-1 diameter identical with the reducing pipe of shaft wheel-connecting shaft-head 6 to be processed; Described lower cavity die 7 is tubular, lower cavity die 7 lower ends are fixed on the lower cavity die fixed head 8, lower cavity die fixed head 8 described being installed on the press bench 9, the Inner chamber of lower cavity die 7 tubulars are made and standard shaft 6-2, bearing fit section 6-3, the wheel section of cooperation 6-4 and the thread segment 6-5 shape of shaft wheel-connecting shaft-head 6 to be processed, measure-alike stepped hole from top to bottom successively; Described material returned bar 10 is stepped cylinder, and the lower end is placed on the material returned pressure pin 12; Described material returned pressure pin 12 is rectangular shaft, and the rectangular shaft sliding fit is sleeved on the pressure pin fixed mount 11; Described pressure pin fixed mount 11 is two, and it is shaped as square type groove, and square type groove upper end is connected with press bench 9 lower ends by bolt; Between press ram 1 and material returned pressure pin 12, drag hook 13 is set.
Shown in accompanying drawing 1,2,3,4: during use, the bar blank is put into the Inner chamber of lower cavity die 7 tubulars, the starting pressure machine, press ram 1 is descending, punch 3, upper cavity die 5 and punch fixed cover 2 DL synchronizations.When running to upper cavity die 5 and contact with lower cavity die 7, upper cavity die 5 and lower cavity die 7 matched moulds.Press ram 1 continues descending, stage clip 4 pressurizeds retraction, punch 3 continues descending, compressing bar blank, force blank to produce plastic deformation, be full of upper cavity die 5 and lower cavity die 7 die cavitys, the reducing pipe that forms shaft wheel-connecting shaft-head 6 to be processed cooperates section 6-1, standard shaft 6-2, bearing fit section 6-3, wheel to cooperate the shape of section 6-4 and thread segment 6-5.When press ram 1 was up, drag hook 13 held up material returned pressure pins 12, and together with material returned bar 10 uplink synchronizations, material returned bar 10 connects spindle nose 16 with machining gears and ejects, and realizes automatic material returning.
Claims (1)
1. the shaft wheel-connecting shaft-head cold-pressing mould of an electric-tricycle differential hollow half, it comprises punch (3), die and material returned bar (10); It is characterized in that: described punch (3) is stepped cylinder, and there is flange I (3-1) upper end, and described flange I (3-1) is installed on the press ram (1) by punch fixed cover (2); Described die is comprised of upper cavity die (5) and lower cavity die (7) two parts, described upper cavity die (5) is the step tubular, there is flange II (5-1) upper end, upper cavity die (5) is inserted in the stepped hole of punch fixed cover (2), between flange II (5-1) and the flange I (3-1) stage clip (4) is set; The Inner hole of upper cavity die (5) cooperates section (6-1) diameter identical with the reducing pipe of shaft wheel-connecting shaft-head to be processed (6); Described lower cavity die (7) is tubular, lower cavity die (7) lower end is fixed on the lower cavity die fixed head (8), described lower cavity die fixed head (8) is installed on the press bench (9), and the Inner chamber of lower cavity die (7) tubular makes and standard shaft (6-2), bearing fit section (6-3), the wheel section of cooperation (6-4) and thread segment (6-5) shape of shaft wheel-connecting shaft-head to be processed (6), measure-alike stepped hole from top to bottom successively; Described material returned bar (10) is stepped cylinder, and the lower end is placed on the material returned pressure pin (12); Described material returned pressure pin (12) is rectangular shaft, and the rectangular shaft sliding fit is sleeved on the pressure pin fixed mount (11); Described pressure pin fixed mount (11) is two, and it is shaped as square type groove, and square type groove upper end is connected with press bench (9) lower end by bolt; Between press ram (1) and material returned pressure pin (12), drag hook (13) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110117680 CN102240733B (en) | 2011-05-09 | 2011-05-09 | Cold pressing die for wheel coupling shaft head of hollow half shaft of electric tricycle differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110117680 CN102240733B (en) | 2011-05-09 | 2011-05-09 | Cold pressing die for wheel coupling shaft head of hollow half shaft of electric tricycle differential mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102240733A CN102240733A (en) | 2011-11-16 |
| CN102240733B true CN102240733B (en) | 2013-03-27 |
Family
ID=44959083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110117680 Expired - Fee Related CN102240733B (en) | 2011-05-09 | 2011-05-09 | Cold pressing die for wheel coupling shaft head of hollow half shaft of electric tricycle differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240733B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722649B (en) * | 2015-03-24 | 2016-08-24 | 隆昌山川精密焊管有限责任公司 | A kind of axle sleeve shaping mould |
| CN108407373B (en) * | 2018-03-09 | 2019-12-17 | 哈尔滨理工大学 | Preparation and use methods of seedling raising fertilizer and profiling mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689983A (en) * | 1983-01-14 | 1987-09-01 | Jidosha Kiki Co., Ltd. | Method for producing worm shaft for use in power steering apparatus |
| CN2219168Y (en) * | 1995-05-05 | 1996-02-07 | 营口市东方汽车锻造厂 | Precision Forging Die for Constant Velocity Universal Joint Cylindrical Shell |
| CN202079168U (en) * | 2011-05-09 | 2011-12-21 | 徐州广厦机电科技制造厂 | Electric-tricycle differential hollow half-shaft wheel-connecting shaft-head cold-pressing mould |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239346A (en) * | 2000-02-29 | 2001-09-04 | Aisin Seiki Co Ltd | Shaft shaping die and means |
-
2011
- 2011-05-09 CN CN 201110117680 patent/CN102240733B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689983A (en) * | 1983-01-14 | 1987-09-01 | Jidosha Kiki Co., Ltd. | Method for producing worm shaft for use in power steering apparatus |
| CN2219168Y (en) * | 1995-05-05 | 1996-02-07 | 营口市东方汽车锻造厂 | Precision Forging Die for Constant Velocity Universal Joint Cylindrical Shell |
| CN202079168U (en) * | 2011-05-09 | 2011-12-21 | 徐州广厦机电科技制造厂 | Electric-tricycle differential hollow half-shaft wheel-connecting shaft-head cold-pressing mould |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-239346A 2001.09.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102240733A (en) | 2011-11-16 |
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Granted publication date: 20130327 Termination date: 20140509 |