CN209614102U - A kind of gearbox gear combining tooth back taper precision forming mold - Google Patents
A kind of gearbox gear combining tooth back taper precision forming mold Download PDFInfo
- Publication number
- CN209614102U CN209614102U CN201821079093.1U CN201821079093U CN209614102U CN 209614102 U CN209614102 U CN 209614102U CN 201821079093 U CN201821079093 U CN 201821079093U CN 209614102 U CN209614102 U CN 209614102U
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- mold
- tooth
- pressing sleeve
- tooth form
- back taper
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Abstract
The utility model relates to metal forming field, in particular to a kind of gearbox gear combining tooth back taper precision forming mold.The shaping dies includes upper pressing sleeve, compressing rod, binder spring, lower pressing sleeve, extrusion die, pressuring template, pressing sleeve reset spring, release link, mold reset spring and pedestal.The compressing rod and the cooperation of binder spring prevent floating up and down for blank in forming process for the elastic spacing of blank.Lower pressing sleeve and tooth form mold are cooperated by inner pyramid face, realize the conversion of pressure direction；Furthermore tooth die strictly limits the circumferential play in Die & Mould Forming Process by guide rail with lower pressing sleeve or tooth form mold and pedestal；Tooth form mold is divided into a valve in the every 1-3 tooth of tooth root or tooth top.Pressing sleeve reset spring and mold reset spring are used to guarantee the timely reset of the two after the completion of forming.The mold has the characteristics that back taper forming accuracy is high, mold guiding is accurate, manufacture efficiency is high.
Description
Technical field
The utility model relates to metal forming field, in particular to a kind of gearbox gear combining tooth back taper essence
Close shaping dies.
Background technique
Conjunction gear is key part in the transmission, covers cooperation with tooth and realizes transmission.To guarantee that conjunction gear and tooth cover not
It slips, the conjunction gear flank of tooth is configured with certain angle.
The current processing method of gearbox gear combining tooth has following three kinds, forges anodontia gear blank, is then cut into
Shape；Conjunction gear teeth portion be and main body separate machined, then pass through spline fitted or welding forming；Conjunction gear integration finish forge at
Shape.Metal streamline is cut off when first two method machines conjunction gear, while by gear shaping technique escape and the shadow of welding quality
It rings, teeth portion intensity greatly reduces, and the case where being easy to appear and beat tooth, do not hang gear, the above phenomenon is serious in vehicle operational process
One of security risk.
The integration forging of conjunction gear may be implemented at present, but existing back taper forming mould has design multiple
The disadvantages of miscellaneous, assembly difficulty, running precision is poor, and back taper forming accuracy is difficult to ensure is not suitable for the high-precision of conjunction gear back taper
Produce in enormous quantities.
Summary of the invention
To solve the above-mentioned problems, the purpose of the utility model is to provide a kind of structures, and simple, assembly is easier, runs more
Accurately, forming accuracy is higher, the higher automotive transmission conjunction gear back taper precision forming mold of production efficiency.
The utility model is achieved through the following technical solutions: a kind of gearbox gear combining tooth back taper precision form mould
Tool, the shaping dies include: for realizing blank elastic spacing in the vertical direction to prevent blank in forming process
The part of the upper die of the transmitting to float up and down with squeeze pressure from upper mold to lower die and for realizing squeeze pressure by vertical direction to
Radial conversion, realizes the forming of back taper and the part of the lower die of mold reset function；
Wherein, the part of the upper die is fixed on the top board of press machine, and as the top board is mobile；The lower mold portion
Set up the vertical lower set in the part of the upper die separately.
Further, the upper mold includes upper pressing sleeve, compressing rod and binder spring；
The upper pressing sleeve, for installing the compressing rod and realizing pressure transmitting, the upper pressure is being set on lower pressing sleeve just
Top, and it is affixed with the top board of the press machine；
The compressing rod, for realizing the fixation of blank in the vertical direction, the compressing rod is arranged in the upper pressing sleeve
Inner hole in；
The binder spring, for compressing rod cooperation for preventing floating up and down for blank in forming process, institute
It states binder spring one end and the compressing rod is affixed.
Further, the part of the lower die includes lower pressing sleeve, tooth form mold, pressuring template, pressing sleeve reset spring, release link, answers
Position spring and pedestal；
The lower pressing sleeve, for realizing the conversion in extruding force direction to push tooth form mold movement, the pushing set setting
In the top of tooth form mold；
The tooth form mold, for shaping back taper, surface and the upper mold center line of pedestal is arranged in the tooth form mold
Alignment, is uniformly placed along center line；
The pressuring template, for fixing the tooth form mold, the pressuring template is bolted on the upper of the pedestal
On end face；
The pressing sleeve reset spring, for the reset of the lower pressing sleeve, the pressing sleeve reset spring is arranged in the pressing mold
In the blind hole of plate；
The resetting apparatus, for the reset of the tooth form mold, the resetting apparatus is arranged in the tooth die
On the upper surface for having pedestal described in the center of bottom, one end of the resetting apparatus is extend into tooth form mold lower end
Portion；
The pedestal, for fixing the lower pressing sleeve, the pedestal is arranged below the tooth form mold, center line and tooth
The center line of shape mold is aligned.
Further, the tooth form of the tooth form mold is processed according to target reverse tapered shape；The lateral surface of the tooth form mold adds
For work at pyramidal surface, medial surface is processed into circular conical surface, and conical surface gradient is 8-12 °；The tooth form mold is along tooth top or tooth root
It is divided into multiple units to form, each unit is made of 1-3 tooth；Fan-shaped tooth form die flap two sides after segmentation process
Wide parallel plane, each unit are separately positioned in rectangle sliding slot.
Further, the lower pressing sleeve medial surface is inner pyramid face, and pyramidal surface gradient is 8-12 °.
It further, is the circumferential limit for realizing the tooth form mold, if being uniformly arranged on the inner pyramid face of the lower pressing sleeve
Dry rectangle sliding slot；Or the rectangle sliding slot is set on the upper surface of the pedestal, the shape and quantity of the rectangle sliding slot with
The shape of the unit of the tooth form mold of the cooperation is consistent with quantity.
Further, the resetting apparatus includes release link and reset spring, and the release link is arranged in the pedestal
In the groove of center, the reset spring socket is in the release link.
Further, the upper pressing sleeve is plane with set contact surface is pushed, and upper pressing sleeve obtains the internal diameter of inner hole slightly larger than pushing
Cover pyramid hole upper end maximum inner diameter.
The advantageous effects of the utility model: due to the adoption of the above technical scheme, the shaping dies of the utility model
Structure is simpler, and mold processing is installed, using more convenient；More accurate mold runs Guide Rail Design, can guarantee mold radial direction
Operation is accurate；More mold numbers of teeth, as long as tooth form mold may be implemented back taper and shape and not destroy in reseting procedure
Shaped back taper, tooth form mold at most can divide a valve with every 3 teeth, substantially reduce mold processing cost in this way, increase
Die life；Reset spring uses mould complicated before eliminating so that mold responds immediately to original position after the completion of extruding
Have resetting apparatus, improves production efficiency.
Detailed description of the invention
Fig. 1 is a kind of overall schematic of gearbox gear combining tooth back taper precision forming mold；
Fig. 2 is 1 tooth form partial enlargement diagram of back taper forming mould；
Fig. 3 sets for 1 tooth position of back taper forming mould point and point number of teeth amount schematic diagram；
Fig. 4 is that 1 tooth form mold of back taper forming mould and pressing sleeve cooperate schematic diagram；
Fig. 5 sets for 2 points of tooth positions of back taper forming mould and point number of teeth amount schematic diagram；
Fig. 6 is that 2 tooth form mold of back taper forming mould and pedestal cooperate schematic diagram；
Fig. 7 is the structural schematic diagram of the unit of tooth form mold.
In figure:
1. pressing sleeve, 2. binder springs, 3. compressing rods, 4. lower pressing sleeves, 5. tooth form molds, 6. pressuring templates, 7. pressing sleeves reset on
Spring, 8. release links, 9. reset springs, 10. pedestals.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is explained in further detail the utility model.It should be appreciated that specific embodiment described herein is used only for explaining
The utility model is not used to limit the utility model.
On the contrary, the utility model cover it is any be defined by the claims do in the spirit and scope of the utility model
Substitution, modification, equivalent method and scheme.Further, right below in order to make the public have a better understanding the utility model
It is detailed to describe some specific detail sections in the datail description of the utility model.Do not have for a person skilled in the art
The utility model can also be understood completely in the description of these detail sections.
A kind of gearbox gear combining tooth back taper precision forming mold of the utility model, the shaping dies includes: to be used for
Blank elastic spacing in the vertical direction is realized to prevent the floating up and down with squeeze pressure from upper mold of blank in forming process
The forming of back taper is realized to radial conversion by vertical direction to the part of the upper die of the transmitting of lower die and for realizing squeeze pressure
With the part of the lower die of mold reset function；
Wherein, the part of the upper die is fixed on the top board of press machine, and as the top board is mobile；The lower mold portion
Set up the vertical lower set in the part of the upper die separately.
The upper mold includes upper pressing sleeve, compressing rod and binder spring；
The upper pressing sleeve, for installing the compressing rod and realizing pressure transmitting, the upper pressure is being set on lower pressing sleeve just
Top, and it is affixed with the top board；
The compressing rod, for realizing the fixation of blank in the vertical direction, the compressing rod is arranged in the upper pressing sleeve
Inner hole in；
The binder spring, for compressing rod cooperation for preventing floating up and down for blank in forming process, institute
It states binder spring one end and the compressing rod is affixed.
Part of the lower die includes lower pressing sleeve, tooth form mold, pressuring template, pressing sleeve reset spring, release link, reset spring and base
Seat；
The lower pressing sleeve, for realizing the conversion in extruding force direction to push tooth form mold movement, the lower pressing sleeve inside
For inner pyramid face, several rectangle sliding slots are uniformly provided on the inner pyramid face；
The tooth form mold, for forming, the tooth form mold is by being divided into multiple unit groups along tooth top or tooth root
At the surface that pedestal is arranged in the tooth form mold is aligned with upper mold center line, is uniformly placed along center line；Each list
Member is made of 1-3 tooth；Fan-shaped tooth form die flap two sides after segmentation process wide parallel plane, each unit point
It is not arranged in the rectangle sliding slot, the tooth form of each unit is processed according to target reverse tapered shape；
The pressuring template, for fixing the tooth form mold, the pressuring template is bolted on the upper of the pedestal
On end face；
The pressing sleeve reset spring, for the reset of the lower pressing sleeve, the pressing sleeve reset spring is arranged in the pressing mold
In the blind hole of plate；
The resetting apparatus, for the reset of the tooth form mold, the resetting apparatus is arranged in the tooth die
On the upper surface for having pedestal described in the center of bottom, one end of the resetting apparatus is extend into tooth form mold lower end
Portion；
The pedestal, for fixing the lower pressing sleeve, the pedestal is arranged below the tooth form mold, center line and tooth
The center line of shape mold is aligned.
It is inner pyramid face on the inside of the lower pressing sleeve；
The upper surface of the pedestal is equipped with several sliding rails for placing the tooth form mold, the quantity and structure of the sliding rail
Quantity at the unit of the tooth form mold is consistent.
The medial surface pyramidal surface gradient of the lower pressing sleeve is 8-12 °, and the lateral surface and medial surface of the tooth form mold are
Pyramidal surface, pyramidal surface gradient are 8-12 °.
The resetting apparatus includes resetting protrusion, release link and reset spring, the reset protrusion to be fixed in the reset
At the top of bar, the release link is arranged in the groove of the base central position, and the reset spring socket is described multiple
On the bar of position, the reset protrusion.
The upper pressing sleeve and pushing set contact surface are plane, and upper pressing sleeve obtains the internal diameter of inner hole slightly larger than lower pressing sleeve pyramid hole
Upper end maximum inner diameter.
The gearbox gear combining tooth back taper precision forming mold of the utility model another program,
The shaping dies includes: for realizing blank elastic spacing in the vertical direction to prevent base in forming process
The part of the upper die for the transmitting of material to float up and down with squeeze pressure from upper mold to lower die and for realizing squeeze pressure by vertical side
To radial conversion, the forming of back taper and the part of the lower die of mold reset function are realized；
Wherein, the part of the upper die is fixed on the top board of press machine, and as the top board is mobile；The lower mold portion
Set up the vertical lower set in the part of the upper die separately.
The upper mold includes upper pressing sleeve, compressing rod and binder spring；
The upper pressing sleeve, for installing the compressing rod and realizing pressure transmitting, the upper pressure is being set on lower pressing sleeve just
Top, and it is affixed with the top board；
The compressing rod, for realizing the fixation of blank in the vertical direction, the compressing rod is arranged in the upper pressing sleeve
Inner hole in；
The binder spring, for compressing rod cooperation for preventing floating up and down for blank in forming process, institute
It states binder spring one end and the compressing rod is affixed.
The part of the lower die include lower pressing sleeve, tooth form mold, pressuring template, pressing sleeve reset spring, release link, reset spring and
Pedestal；
The lower pressing sleeve, for realizing the conversion in extruding force direction to push tooth form mold movement, the lower pressing sleeve inside
For inner pyramid face, the inner pyramid face is not provided with rectangle sliding slot；
The tooth form mold, for forming, the tooth form mold is by being divided into multiple unit groups along tooth top or tooth root
At the surface that pedestal is arranged in the tooth form mold is aligned with upper mold center line, is uniformly placed along center line；Each list
Member is made of 1-3 tooth；Fan-shaped tooth form die flap two sides after segmentation process wide parallel plane, each unit point
It is not arranged in the rectangle sliding slot, the tooth form of each unit is processed according to target reverse tapered shape；
The pressuring template, for fixing the tooth form mold, the pressuring template is bolted on the upper of the pedestal
On end face；
The pressing sleeve reset spring, for the reset of the lower pressing sleeve, the pressing sleeve reset spring is arranged in the pressing mold
In the blind hole of plate；
The resetting apparatus, for the reset of the tooth form mold, the resetting apparatus is arranged in the tooth die
On the upper surface for having pedestal described in the center of bottom, one end of the resetting apparatus is extend into tooth form mold lower end
Portion；
The pedestal, for fixing the lower pressing sleeve, the pedestal is arranged below the tooth form mold, center line and tooth
The center line of shape mold is aligned, and the upper surface of the pedestal is equipped with several sliding rails for placing the tooth form mold, the cunning
The quantity of rail is consistent with the quantity of unit for constituting the tooth form mold.
The medial surface pyramidal surface gradient of the lower pressing sleeve is 8-12 °, and the lateral surface and medial surface of the tooth form mold are
Pyramidal surface, pyramidal surface gradient are 8-12 °.
The resetting apparatus includes resetting protrusion, release link and reset spring, the reset protrusion to be fixed in the reset
At the top of bar, the release link is arranged in the groove of the base central position, and the reset spring socket is described multiple
On the bar of position, the reset protrusion.
The upper pressing sleeve and pushing set contact surface are plane, and upper pressing sleeve obtains the internal diameter of inner hole slightly larger than lower pressing sleeve pyramid hole
Upper end maximum inner diameter.
Embodiment:
Automobile gearbox gear combining tooth back taper precision forming mold, it includes upper die and lower die two parts.Part of the upper die
Including upper pressing sleeve 1, compressing rod 3, binder spring 2；Upper mold is fixed on press machine top board, and moves with it；Compressing rod 3 and binder
The vertical direction of blank is fixed in 2 mating reaction of spring, realization.Part of the lower die include lower pressing sleeve 4, tooth form mold 5, pressuring template 6,
Pressing sleeve reset spring 7, release link 8, reset spring 9, pedestal 10.Upper mold is contacted by upper pressing sleeve 1 with lower pressing sleeve 4 with lower die；Under
Pressing sleeve 4 is contacted by tapered plane with tooth form mold 5 and realizes that pressure direction is converted to radial direction by vertical direction；Tooth form mold 5 passes through
Guide rail is realized exactly diametrically compression and is replied.
If Fig. 2 tooth form mold 5 is according to back taper tooth Profile Machining, mold tooth form is wide at the top and narrow at the bottom；Tooth form mold 5 is divided in tooth root,
Splitting scheme is 3 parts of one valve of every 3 teeth, and 12 parts of one valve of every 2 teeth, the distribution scheme of tooth form mold is shown in Fig. 3；Such as Fig. 4, tooth
Shape mold 5 is contacted with lower pressing sleeve 4 by tapered plane, and tapered plane angle is 10 °, and tooth form mold 5 processes rectangular guideway in side
Guarantee that 5 forming process of tooth form mold is accurately run with lower 4 rectangle sliding slot clearance fit of pressing sleeve；9 ° are processed inside tooth form mold 5
Scalene cone contacts the reset of mold after the completion of realization forming with release link 8.
Such as Fig. 4, lower pressing sleeve 4 is processed tapered plane, and tapered plane size and 5 tapered plane of tooth form mold etc. are big reversed.
Release link 8 is processed the male cone (strobilus masculinus) opposite with general orientation such as 5 inner conical surface angles of tooth form mold；Release link 8 and multiple
Homing after position spring 9 is shaped with the taper-face contact realization tooth form mold 5 of merga pass and tooth form mold 5.
Pressuring template 6 is processed to and 5 clearance fit of tooth form mold, the circumferential limit of realization tooth form mold 5；Pressuring template 6 is solid
It is scheduled on pedestal 10；Pressuring template 6 processes 4 blind holes for storing pressing sleeve reset spring 7.
Example 2: this tooth form mold 2 is divided according to mode shown in Fig. 5 in mold tooth top, and every 1 tooth is divided into portion.Such as figure
6, tooth form mold bottom processes guide rail and cooperates with rectangle sliding slot, realizes the accurate operation of tooth form mold.Other structures with
Example 1 is identical, and details are not described herein.
Although having been presented for two embodiments of the utility model herein, those skilled in the art should be managed
Solution, in the case where not departing from the spirit of the present invention, can be changed the embodiments herein.Above-described embodiment only shows
Example property, it should not be using the embodiments herein as the restriction of the utility model interest field.
Claims (5)
1. a kind of gearbox gear combining tooth back taper precision forming mold, which is characterized in that the shaping dies includes: for real
The existing elastic spacing of blank in the vertical direction with prevent blank in forming process float up and down with squeeze pressure from upper mold to
The part of the upper die of the transmitting of lower die and for realizing squeeze pressure by vertical direction to radial conversion, realize back taper forming and
The part of the lower die of mold reset function；
Wherein, the part of the upper die is fixed on the top board of press machine, and as the top board is mobile；The lower mold portion sets up separately
Set the vertical lower in the part of the upper die；
The part of the upper die includes upper pressing sleeve, compressing rod and binder spring；
The upper pressing sleeve, for installing the compressing rod and realizing pressure transmitting, the upper pressure is set on right above lower pressing sleeve,
And it is affixed with the top board of the press machine；
The compressing rod, for realizing the fixation of blank in the vertical direction, the compressing rod is arranged in the upper pressing sleeve
In hole；
The binder spring, for compressing rod cooperation for preventing floating up and down for blank in forming process, the pressure
Expect that spring one end and the compressing rod are affixed；
The part of the lower die includes lower pressing sleeve, tooth form mold, pressuring template, pressing sleeve reset spring, resetting apparatus and pedestal；
The lower pressing sleeve, for realizing the conversion in extruding force direction to push tooth form mold movement, the pushing is set on tooth
The top of shape mold；
The tooth form mold, for shaping back taper, the surface that pedestal is arranged in the tooth form mold is aligned with upper mold center line,
It is uniformly placed along center line；
The pressuring template, for fixing the tooth form mold, the pressuring template is bolted on the upper surface of the pedestal
On；
The pressing sleeve reset spring, for the reset of the lower pressing sleeve, the pressuring template is arranged in the pressing sleeve reset spring
In blind hole；
The resetting apparatus, for the reset of the tooth form mold, the resetting apparatus includes release link and reset spring, described
Release link is arranged in the groove of the base central position, and the reset spring socket is described in the release link
One end of reset spring is extend into inside tooth form mold lower end；
The pedestal, for fixing the lower pressing sleeve, the pedestal is arranged below the tooth form mold, center line and tooth die
The center line of tool is aligned.
2. gearbox gear combining tooth back taper precision forming mold according to claim 1, which is characterized in that the tooth form
The tooth form of mold is processed according to target reverse tapered shape；The lateral surface of the tooth form mold is processed into pyramidal surface, and medial surface is processed into
Circular conical surface, conical surface gradient are 8-12 °；The tooth form mold is divided into multiple units to form along tooth top or tooth root, each
The unit is made of 1-3 tooth；Fan-shaped tooth form die flap two sides after segmentation process wide parallel plane, each described
Unit is separately positioned in rectangle sliding slot.
3. gearbox gear combining tooth back taper precision forming mold according to claim 1, which is characterized in that the pushing
Set medial surface is inner pyramid face, and pyramidal surface gradient is 8-12 °.
4. gearbox gear combining tooth back taper precision forming mold according to claim 2 or 3, which is characterized in that be real
The circumferential of the existing tooth form mold limits, and is uniformly arranged several rectangle sliding slots on the inner pyramid face of the lower pressing sleeve；Or it is described
The rectangle sliding slot is set on the upper surface of pedestal, the tooth form mold of the shape and quantity and the cooperation of the rectangle sliding slot
The shape of unit is consistent with quantity.
5. gearbox gear combining tooth back taper precision forming mold according to claim 1, which is characterized in that the upper pressure
Set is plane with set contact surface is pushed, and upper pressing sleeve obtains the internal diameter of inner hole slightly larger than lower pressing sleeve pyramid hole upper end maximum inner diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079093.1U CN209614102U (en) | 2018-07-09 | 2018-07-09 | A kind of gearbox gear combining tooth back taper precision forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079093.1U CN209614102U (en) | 2018-07-09 | 2018-07-09 | A kind of gearbox gear combining tooth back taper precision forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209614102U true CN209614102U (en) | 2019-11-12 |
Family
ID=68441468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821079093.1U Expired - Fee Related CN209614102U (en) | 2018-07-09 | 2018-07-09 | A kind of gearbox gear combining tooth back taper precision forming mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209614102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746451A (en) * | 2018-07-09 | 2018-11-06 | 北京科技大学 | A kind of gearbox gear combining tooth back taper precision forming mold |
| CN112895567A (en) * | 2021-01-18 | 2021-06-04 | 重庆医药高等专科学校 | Powder tablet press |
-
2018
- 2018-07-09 CN CN201821079093.1U patent/CN209614102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746451A (en) * | 2018-07-09 | 2018-11-06 | 北京科技大学 | A kind of gearbox gear combining tooth back taper precision forming mold |
| CN112895567A (en) * | 2021-01-18 | 2021-06-04 | 重庆医药高等专科学校 | Powder tablet press |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 Termination date: 20200709 |