CN208495634U - Gearbox gear cold extrusion device - Google Patents
Gearbox gear cold extrusion device Download PDFInfo
- Publication number
- CN208495634U CN208495634U CN201821145349.4U CN201821145349U CN208495634U CN 208495634 U CN208495634 U CN 208495634U CN 201821145349 U CN201821145349 U CN 201821145349U CN 208495634 U CN208495634 U CN 208495634U
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- Prior art keywords
- die holder
- lower die
- rack
- piston
- fixed
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- 238000000641 cold extrusion Methods 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model belongs to part manufacture field, specifically disclose a kind of gearbox gear cold extrusion device, including rack, it is fixed with lower die holder in rack, upper die holder is slidably connected in rack, is set in lower die holder there are two L-type chamber, two L-type chambers using the central axes of lower die holder as symmetry axis axisymmetricly, lower die holder inner wall is equipped with through-hole, slidably connects sliding block in vertical section, upper end of slide block is fixed with connecting rod；It is located above lower die holder in rack and is hinged with lever, lever both ends are equipped with the first strip groove, and small end is fixed with the first convex block, and the first convex block is inserted into the first strip groove of lever outboard end, upper die holder two sides are respectively and fixedly provided with guide pad, and guide pad is inserted into the first strip groove of lever inner end；Lower die holder bottom is equipped with slide opening, and push rod is slidably connected in slide opening, is located at below lower die holder in rack and is hinged with rocking bar, rocking bar and push rod lower end are hinged.Using the embodiment of the utility model, facilitates and be removed from the molds the gear of extrusion forming.
Description
Technical field
The utility model belongs to motorcycle parts manufacture field, and in particular to a kind of gearbox gear cold extrusion device.
Background technique
Gearbox gear needs to work in the case where high revolving speed, high load capacity, revolving speed and load continuous alternation, and gear is
External applied load is born by itself structure size and the strength of materials, thus require gear precision with higher and compared with
Good material technology, under normal circumstances, the material of the selection of gearbox gear are forged steel.At this stage in order to reduce rapidoprint
Waste, Gear Processing are completed usually using cold extrusion.
Cold extrusion refers at room temperature, is allowed to generate the processing side for being plastically deformed obtained part by squeezing metal blank
Method.The friction condition of cold extrusion is very harsh, is lubricated before needing to process to blank, the effect of lubrication has two o'clock: one is
Reduce the coefficient of friction between material and mold；The second is preventing material and mold hot deadlocked.It is existing that blank is lubricated
Mode be that blank is immersed in in lubricant certain time, due to that can be glued on blank and stick many lubricants when taking out blank,
Therefore it also needs to drain lubricant extra on blank, blank could be put into cold extrusion die and carry out cold extrusion.
Usual cold extrusion die is made of dynamic model and cover half two parts, and blank is placed on cover half, and driving dynamic model is opposite
Cover half movement, dynamic model squeeze blank, flow blank with respect to cover half, and blank is formed according to the cavity shape of cover half.Then it drives
Dynamic model and cover half separate and take out part.It is had the following problems in this processing method: utilizing the phase between dynamic model and cover half
Interreaction force, so that blank extrusion forming, can closely stick together with cover half after leading to blank forming, be not easy to remove, and make
Gear is removed with brute-force to be easy to cause scratch in gear surface, influences the accuracy of gear.
Utility model content
The purpose of this utility model is to provide a kind of gearbox gear cold extrusion device, to solve after blank forming and fixed
Mould closely sticks together, and is not easy the problem of removing.
In order to achieve the above objectives, the base case of the utility model are as follows: gearbox gear cold extrusion device, including rack,
It is fixed with lower die holder in rack, is located above lower die holder in rack and slidably connects upper die holder, set that there are two L-types in lower die holder
Chamber, two L-type chambers using the central axes of lower die holder as symmetry axis axisymmetricly, L-type chamber includes horizontal segment and vertical section, in lower die holder
Wall is equipped with the through-hole being connected to L-type chamber, slidably connects sliding block in vertical section, upper end of slide block is fixed with connecting rod；Rack is upper
Lever is hinged with above lower die holder, lever both ends are equipped with the first strip groove, and small end is fixed with the first convex block, and first is convex
Block is inserted into the first strip groove of lever outboard end, and upper die holder two sides are respectively and fixedly provided with guide pad, and guide pad is inserted into lever inner end
The first strip groove in；Lower die holder bottom is equipped with slide opening, and push rod is slidably connected in slide opening, hinge below lower die holder is located in rack
It is connected to rocking bar, rocking bar and push rod lower end are hinged.
The working principle of this base case is:
Blank after dip-coating lubricant is placed in lower die holder, remaining lubricant flows downwardly into lower die holder on blank
In inner cavity, so that blank spontaneously dries.
Upper die holder moves downward, and upper die holder drives lever one end to move downward, and according to lever principle, the lever other end is driven
Connecting rod moves upwards.Sliding block and L-type chamber form piston structure, and according to the kinetic characteristic of piston structure, sliding block slides up with connecting rod
Dynamic, the inside air-breathing of L-type chamber is intracavitary by the lubricant flowed in lower die holder inner cavity sucking L-type.
After the completion of cold extrusion, it is pressed downward rocking bar one end, rocking bar and rack form lever construction, and the other end drive of rocking bar pushes away
Bar moves upwards, and push rod pushes up blank.Meanwhile upper die holder moves upwards reset, upper die holder drives lever one end to move upwards,
The lever other end drives connecting rod to move downward, and connecting rod band movable slider slide downward, the intracavitary air of L-type and lubricant pass through
Through-hole gives the thrust that blank centainly moves upwards to outlet, and when the inner cavity of blank and lower die holder is there are behind gap, lubricant is
It can be dipped on blank surface.The thrust of cooperation push rod is facilitated using the lubricating action of lubricant and the thrust of gas by blank
It is taken out out of lower die holder.
The beneficial effect of this base case is:
1, lubricant collection recycles after L-type is intracavitary, on the one hand facilitates the taking-up of blank, on the other hand reduces lubricant
Waste.
2, the thrust of push rod is facilitated blank out of lower die holder using the lubricating action of lubricant and the thrust of gas
It takes out.And due to gas effect and the lubricating action of lubricant, it is possible to reduce the friction between gear surface and lower die holder is kept away
Exempt to cause scratch in gear surface.
Further, upper die holder is located in rack and is fixedly arranged above piston bucket, the sealing of piston bucket lower end, the interior sliding of piston bucket connects
It is connected to piston, piston rod is fixed on piston, piston-rod lower end is through piston bucket lower end surface and extends to outside piston bucket, piston rod
Lower end and upper die holder are fixed；Piston bucket lower end is equipped with venthole, is communicated with pipeline, the opening direction of free end of pipeline at venthole
Lower die holder.When upper die holder moves downward, piston rod is driven to move downward, piston is moved downward with piston rod, piston and piston bucket
Piston structure is formed, according to the kinetic characteristic of piston structure, piston bucket lower end outlet, gas blows to blank by pipeline, by base
Part lubricant remained on surface blows to the inner cavity of lower die holder, while cooperating the inside air-breathing of L-type chamber, and the lubricant in lower die holder is inhaled
It is intracavitary to enter L-type.Compared to natural drying, the flowing of gas is more conducive to blank drying, and drying effect is more preferable and more efficient.
Further, push rod upper end is fixed with push plate, and lower die holder bottom is equipped with the placing groove placed for push plate.Push plate is placed on
In placing groove, so that lower die holder bottom keeps smooth.Push plate is set, the contact area with blank lower surface is increased, is releasing base
Make blank lower end uniform force when part, avoids damage blank.
Further, magnet is fixed in push plate.Blank is steel, by the setting of magnet, has certain attraction to blank
Effect, fixed blank.
Further, through-hole is equipped with multiple, and is equipped in vertical section and water segment.Lubricant can be flowed out from many places to base
Part is lubricated, more the taking-up of aspect blank.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model embodiment.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: upper die holder 1, lower die holder 2, L-type chamber 3, sliding block 4, connecting rod 5, lever 6,
Through-hole 7, push rod 8, push plate 9, rocking bar 10, blank 11, pipeline 12, piston bucket 13, piston rod 14.
As shown in Figure 1, gearbox gear cold extrusion device, including rack, it is fixed with lower die holder 2 in rack, rack is upper
Upper die holder 1 is slidably connected above lower die holder 2.It is located at upper die holder 1 in rack and is fixedly arranged above piston bucket 13, under piston bucket 13
End seals, open upper end, slidably connects piston in piston bucket 13, piston rod 14 is fixed on piston, 14 upper end of piston rod is passed through
Piston is worn, hydraulic cylinder is fixed in rack, the hydraulic stem of hydraulic cylinder and 14 upper end of piston rod are fixed.14 lower end of piston rod is through work
Plug 13 lower end surface of bucket simultaneously extends to outside piston bucket 13, and 14 lower end of piston rod and upper die holder 1 are fixed.13 lower part of piston bucket is equipped with ventilation
Hole, is communicated with pipeline 12 at venthole, and the opening of 12 free end of pipeline is towards lower die holder 2.
Set in lower die holder 2 there are two L-type chamber 3, two L-type chambers 3 using the central axes of lower die holder 2 as symmetry axis axisymmetricly, L
Type chamber 3 includes horizontal segment and vertical section, and 2 inner wall of lower die holder is equipped with multiple through-holes 7 being connected to respectively with vertical section and horizontal segment.
Sliding block 4 is slidably connected in vertical section, 4 upper end of sliding block is fixed with connecting rod 5.Lever 6 is hinged in rack, 6 both ends of lever are all provided with
There is the first strip groove, 5 upper end of connecting rod is fixed with the first convex block, and the first convex block is inserted into the first strip groove of 6 outboard end of lever.On
1 two sides of die holder are respectively and fixedly provided with guide pad, and guide pad is inserted into the first strip groove of 6 inner end of lever.5 upper end of connecting rod and lever 6
Outboard end is hinged, and 6 inner end of lever and upper die holder 1 are hinged, and inner end refers to that, close to one end of upper die holder 1, outboard end is herein
Refer to one end far from upper die holder 1.
2 bottom of lower die holder is equipped with slide opening, slidably connects push rod 8 in slide opening, 8 upper end of push rod is fixed with push plate 9, push plate 9
On be fixed with magnet, 2 bottom of lower die holder is equipped with placing groove, and push plate 9 is stuck in placing groove, 2 bottom surface of 9 upper surface of push plate and lower die holder
Concordantly.
It is located at below lower die holder 2 in rack and is hinged with rocking bar 10,10 left end of rocking bar is equipped with the second strip groove, 8 lower end of push rod
Be fixed with the second convex block, the second convex block is inserted into the second strip groove, the hinge joint of rocking bar 10 and rack away from the distance of push rod 8 with shake
The distance ratio of bar 10 and the hinge joint of rack away from 10 free end of rocking bar is 1:3, and rocking bar 10 and rack form laborsaving lever structure.
When specific works, blank 11 to be processed is placed in lower die holder 2, it, can be to base since push plate 9 is magnetic sheet
Part 11 has certain attraction fixed function.Start hydraulic cylinder, Driven by Hydraulic Cylinder piston rod 14 moves downward, and piston is with piston rod 14
It moving downward, piston and piston bucket 13 form piston structure, according to the kinetic characteristic of piston structure, 13 lower end outlet of piston bucket,
Gas blows to blank 11 by pipeline 12, and the lubricant remained on surface of blank 11 is blowed to the inner cavity of lower die holder 2.
Meanwhile piston rod 14 pushes upper die holder 1 to move downward, upper die holder 1 drives 6 inner end of lever to move downward, lever 6
Outboard end drives connecting rod 5 to move upwards.Sliding block 4 and L-type chamber 3 form piston structure, according to the kinetic characteristic of piston structure, sliding block
4 drive lubricant to be flowed into L-type chamber 3 by through-hole 7 and collect with 5 upward sliding of connecting rod, the inside air-breathing of L-type chamber 3, gas.
After the completion of cold extrusion, Driven by Hydraulic Cylinder hydraulic stem is moved upwards.Rocking bar 10 and rack form laborsaving lever structure, to
10 right end of rocking bar is pushed, 10 left end of rocking bar drives push rod 8 to move upwards, and push rod 8 drives push plate 9 to push up blank 11, and setting pushes away
Plate 9 increases the contact area with 11 lower surface of blank, 11 lower end uniform force of blank is made when releasing blank 11, avoids damaging
Bad blank 11.Meanwhile hydraulic stem drives piston rod 14 and upper die holder 1 to move upwards reset, upper die holder 1 drives 6 inside of lever
End moves upwards, and 6 outboard end of lever drives connecting rod 5 to move downward, air of the connecting rod 5 with 4 slide downward of movable slider, in L-type chamber 3
And lubricant passes through through-hole 7 to outlet, gas can be swept along in the gap of lubricant filling blank 11 and lower die holder 2, be subtracted
Friction between small blank 11 and lower die holder 2, and can also give blank 11 upward thrust from the gas that horizontal segment is discharged, match
The thrust for closing push rod 8 facilitates using the lubricating action of lubricant and the thrust of gas and takes out blank 11 out of lower die holder 2.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.
Claims (5)
1. gearbox gear cold extrusion device, including rack, it is fixed with lower die holder in rack, is located in rack sliding above lower die holder
It is dynamic to be connected with upper die holder, it is characterised in that: L-type chamber there are two setting in the lower die holder, two L-type chambers are with the central axes of lower die holder
Axisymmetricly for symmetry axis, L-type chamber includes horizontal segment and vertical section, and lower die holder inner wall is equipped with the through-hole being connected to L-type chamber, is erected
Sliding block is slidably connected in straight section, upper end of slide block is fixed with connecting rod；It is located above lower die holder in rack and is hinged with lever, lever two
End is equipped with the first strip groove, and small end is fixed with the first convex block, and the first convex block is inserted into the first strip groove of lever outboard end
Interior, upper die holder two sides are respectively and fixedly provided with guide pad, and guide pad is inserted into the first strip groove of lever inner end；Lower die holder bottom is equipped with
Slide opening slidably connects push rod in slide opening, is located at below lower die holder in rack and is hinged with rocking bar, rocking bar and push rod lower end are hinged.
2. gearbox gear cold extrusion device according to claim 1, it is characterised in that: be located above upper die holder in rack
It is fixed with piston bucket, piston bucket lower end seals, and slidably connects piston in piston bucket, piston rod, piston rod are fixed on piston
Lower end is through piston bucket lower end surface and extends to outside piston bucket, and piston-rod lower end and upper die holder are fixed；Piston bucket lower end is equipped with logical
Stomata, is communicated with pipeline at venthole, and the opening of free end of pipeline is towards lower die holder.
3. gearbox gear cold extrusion device according to claim 1, it is characterised in that: the push rod upper end, which is fixed with, to push away
Plate, lower die holder bottom are equipped with the placing groove placed for push plate.
4. gearbox gear cold extrusion device according to claim 3, it is characterised in that: be fixed with magnetic in the push plate
Iron.
5. gearbox gear cold extrusion device according to claim 1, it is characterised in that: the through-hole be equipped with it is multiple, and
It is equipped in vertical section and horizontal segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821145349.4U CN208495634U (en) | 2018-07-18 | 2018-07-18 | Gearbox gear cold extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821145349.4U CN208495634U (en) | 2018-07-18 | 2018-07-18 | Gearbox gear cold extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208495634U true CN208495634U (en) | 2019-02-15 |
Family
ID=65289715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821145349.4U Active CN208495634U (en) | 2018-07-18 | 2018-07-18 | Gearbox gear cold extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208495634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228998A (en) * | 2022-07-19 | 2022-10-25 | 常熟市华德粉末冶金有限公司 | Post-treatment hydraulic press for improving precision of gear ring and post-treatment process |
-
2018
- 2018-07-18 CN CN201821145349.4U patent/CN208495634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228998A (en) * | 2022-07-19 | 2022-10-25 | 常熟市华德粉末冶金有限公司 | Post-treatment hydraulic press for improving precision of gear ring and post-treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231219 Address after: No. 32 Long'an Avenue, Dongcheng Street, Tongliang District, Chongqing, 402560 Patentee after: Chongqing Hengke Machinery Co.,Ltd. Address before: Group 2, Mujia village, Baishiyi Town, Jiulongpo District, Chongqing Patentee before: CHONGQING HENGRUIDA MACHINERY CO.,LTD. |
|
| TR01 | Transfer of patent right |