CN108213305A - A kind of pole pier compression mould and pier pressure method - Google Patents
A kind of pole pier compression mould and pier pressure method Download PDFInfo
- Publication number
- CN108213305A CN108213305A CN201810234158.3A CN201810234158A CN108213305A CN 108213305 A CN108213305 A CN 108213305A CN 201810234158 A CN201810234158 A CN 201810234158A CN 108213305 A CN108213305 A CN 108213305A
- Authority
- CN
- China
- Prior art keywords
- punch
- hole
- pier
- forming hole
- mold portion
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
Abstract
The invention discloses a kind of pole pier compression mould, including：Upper mold portion, lower mold portion；The upper mold portion is provided with dismountable punch-pin, and the lower mold portion is provided with for the tapered cavity plate of molding band；Wherein, the punch-pin includes：Be detachably arranged at the upper mold portion enter son and be arranged on it is described enter son in punch, the punch fixing end be removably arranged on it is described enter son in, the punch pier pressure side is tapered cylinder.The cavity plate includes the first forming hole and the second forming hole, and second forming hole is set to the first forming hole top and diameter is more than first forming hole, the hole wall setting in an inverted cone of first forming hole.The present invention enters son and the punch being embedded in son by being provided with the upper mold portion of limiting slot, being arranged in limiting slot, realizes the replacement to punch, have it is simple in structure, it is easy to use, reduce die cost the characteristics of.
Description
Technical field
The present invention relates to equipment manufacture field more particularly to a kind of pole pier compression mould and pier pressure methods.
Background technology
Pole is that one end is directly connect with bus-bar, the other end or connect with external conductor (in this case also known as hold
Son) or the single battery adjacent with battery pack the component that connect of a pole.
Battery is just gradually being penetrated into daily life as a kind of important energy source, and with the demand of people
And the progress of science, a large amount of mobile electrical equipments are more and more entered among people’s lives, this causes the demand of battery
It is continuously increased.
Pole is the indispensable important component of battery, is that selection is cast into mostly in traditional pole production process
Type obtains pole, but this method is due to pole material to be heated to molten condition ability cast molding, in heating process, material
The performance of material can change.Then, pier platen press just produces pole, but pier platen press is more demanding to mold, in pier repeatedly
During pressure, the upper mold or lower die of mold can be deformed or be damaged, and at this moment need replacing new upper mold or lower die, be increased
Cost.
Invention content
The purpose of the present invention is in view of the above-mentioned drawbacks of the prior art, providing a kind of pole pier compression mould and pier pressure side
Method.
The technical solution adopted by the present invention is to design a kind of pole pier compression mould, including：Upper mold portion, lower mold portion；On described
Mould portion is provided with dismountable punch-pin, and the lower mold portion is provided with for the tapered cavity plate of molding band；Wherein, the punch-pin
Including：Be detachably arranged at the upper mold portion enter son and be arranged on it is described enter son in punch, the punch fixing end is removable
Unload be arranged on it is described enter son in, the punch pier pressure side is tapered cylinder.The cavity plate include the first forming hole with
And second forming hole, second forming hole is set to the first forming hole top and diameter is more than first forming hole,
The hole wall setting in an inverted cone of first forming hole.
Preferably, be provided with below the upper mold portion with it is described enter the adaptable limiting groove of son；It is described enter son with it is described
Upper mold is provided with corresponding countersunk screw holes, is connected by screw.The limiting groove be used to limiting it is described enter son position, make institute
The upper mold portion can be precisely fixed on into son by stating, and is pressed through Cheng Buhui in pier and rotated.The screw passes through the countersunk head
Enter son and the upper mold portion described in screw hole connection, enable it is described enter son be more securely connected in the upper mold portion, but also
Can by remove the screw make it is described enter son dismantle and removes from the upper mold portion, be convenient for changing into sub or punch.
Preferably, it is described enter sub- upper surface be provided with limited mouth, the upper surface of the punch fixing end is provided with limited block
Coordinate with the limited mouth so as to enter in son described in punch insertion.The limited mouth it is described enter son with the upper mold portion connect
Form a limit space when connecing, the limited block be arranged in the limit space so that the punch be embedded in it is described enter son
In, so as to the fixed punch.
Preferably, it is provided with up-small and down-big step through-hole below the first forming hole of the cavity plate.The step through-hole
The first forming hole bottom of the cavity plate and the bottom of the lower mold portion are connected, by the step through-hole, can subsequently realized
Move back the function of mould.
Preferably, it is provided in the step through-hole and accordingly moves back mode structure, the mode structure that moves back includes：It is set to described
The fore-set that can be taken off and the thimble being set in the step through-hole aperture in rank through-hole macropore.The mode structure that moves back is used for
Workpiece is supported when pier is pressed and pole is ejected into the cavity plate when moving back mould.The fore-set is arranged on the step through-hole macropore
It is interior, the thimble is used to support, the thimble is arranged in the step through-hole aperture, is sealed when pier is pressed with cavity plate cooperation
Cavity plate is stated in residence, and supports workpiece.
Preferably, it is provided in the step through-hole and moves back mode structure accordingly, the mode structure that moves back is cylinder.Use cylinder
The process for moving back mould can be made lighter.
Preferably, the punch pier pressure side periphery is provided with annular deep gouge.The annular deep gouge can make pole when pier is pressed
An annular convex platform is formed, annular convex platform facilitates positioning pole.
A kind of pier pressure method of pole pier compression mould, including step：
Workpiece is placed on pier pressure station, workpiece is pressed into cavity plate by punch-pin is molded；Wherein, the cavity plate includes first
Forming hole and the second forming hole, second forming hole is set to the first forming hole top and diameter is more than described first
Forming hole, the hole wall setting in an inverted cone of first forming hole.
Preferably, step is further included：
Workpiece after molding is ejected from the first forming hole bottom of cavity plate.Because the hole wall of the first forming hole is in an inverted cone
Setting, is moved back more convenient when mould.
Preferably, step is further included：
The workpiece of ejection is made annealing treatment.
Compared with prior art, the present invention at least has the advantages that：The present invention is by being provided with the upper of limiting slot
Mould portion is arranged in limiting slot and enters son and the punch being embedded in son, realizes the replacement to punch, has structure letter
It is single, easy to use, the characteristics of reducing die cost.
Description of the drawings
Fig. 1 is the sectional view of the embodiment of the present invention；
Fig. 2 is the upper mold portion exploded perspective view of the embodiment of the present invention；
Fig. 3 is the upper mold portion limiting groove schematic diagram of the embodiment of the present invention；
Fig. 4 is the punch-pin schematic diagram of the embodiment of the present invention；
Fig. 5 is the punch-pin sectional view of the embodiment of the present invention；
Fig. 6 enters sub- top view for the embodiment of the present invention；
Fig. 7 is the lower mold portion schematic diagram of the embodiment of the present invention；
Fig. 8 is the lower mold portion sectional view of the embodiment of the present invention；
Fig. 9 is the pier splenium profile of the embodiment of the present invention；
Figure 10 is that the pier of the embodiment of the present invention presses method flow diagram.
In figure：1st, upper mold portion；11st, limiting groove；12nd, countersunk screw holes；2nd, lower mold portion；21st, cavity plate；211st, the first molding
Hole；212nd, the second forming hole；22nd, step through-hole；31st, enter son；311st, limited mouth；32nd, punch；321st, fixing end；322nd, pier pressure
End；323rd, limited block；4th, fore-set；5th, thimble；6th, workpiece.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figs 1-9, the present invention proposes a kind of pole pier compression mould, including：Upper mold portion 1, lower mold portion 2；On described
Mould portion 1 is provided with dismountable punch-pin, and the lower mold portion 2 is provided with for the tapered cavity plate 21 of molding band；Wherein, it is described
Punch-pin includes：Be detachably arranged at the upper mold portion 1 enter son 31 and be arranged on it is described enter son 31 in punch 32, the punch
32 fixing ends 321 enter described in being removably arranged in son 31, and the 32 pier pressure side 322 of punch is tapered cylinder.Institute
It states cavity plate and includes the first forming hole 211 and the second forming hole 212, second forming hole 212 is set to first molding
211 top of hole and diameter are more than first forming hole 211, the hole wall setting in an inverted cone of first forming hole 211.
Further, second forming hole 212 is square structure or other non-circular structures, the workpiece tool for extruding pier
Having prevents the function of rotation.
As a kind of embodiment, second forming hole may be circular configuration, easily facilitate the workpiece that pier extrudes
Installation.
In embodiments of the present invention, 1 lower section of the upper mold portion be provided with it is described enter the adaptable limiting grooves 11 of son 31；
It is described enter son 31 the upper mold is provided with corresponding countersunk screw holes 12, be connected by screw.The limiting groove 11 is used to limit
It is fixed described enter son 31 position, enable it is described enter son 31 be precisely fixed on the upper mold portion 1, and Cheng Buhui is pressed through in pier
Rotation.The screw by the countersunk screw holes 12 connect it is described enter son 31 and the upper mold portion 1, enable it is described enter son 31 more
Be tightly attached in the upper mold portion 1, but also can by remove the screw make it is described enter son 31 from the upper mold portion 1
Middle dismounting is removed, and is convenient for changing into son 31 or punch 32.
Further, it is described enter son 31 be spline structure, specifically, it is described enter peripheral shape be " convex " shape, certainly
The shape of the limiting groove 11 with it is described enter son 31 peripheral shape be adapted, with enter described in restriction son 31 rotation, make institute
Son 31 is stated to be fixed in the limiting groove 11.Meanwhile it is described enter son 31 on countersunk screw holes 12 be arranged on lug boss,
Certainly, the countersunk screw holes 12 of the upper mold portion 1 are also disposed at corresponding place, with attachment screw by it is described enter son 31 be fixed on
In the limiting slot.
Further, it is described enter son 31 with the punch 32 also for spline structure, the fixing end 321 of the punch 32 is side
Rod structure is defined by four of square column in face of the punch 32, make the punch 32 it is described enter son 31 in will not turn
It is dynamic.
In embodiments of the present invention, it is described enter sub 31 upper surfaces be provided with limited mouth 311,32 fixing end 321 of punch
Upper surface be provided with limited block 323 and the limited mouth 311 and coordinate so as to enter in son 31 described in the insertion of the punch 32.It is described
Limited mouth 311 it is described enter son 31 connect with the upper mold portion 1 when one limit space of formation, the limited block 323 is arranged on
In the limit space so that the punch 32 be embedded in it is described enter son 31 in, so as to the fixed punch 32, also, the limit
Bit space makes the punch 32 not rotate with the limited block 323 cooperation.
As a kind of embodiment, punch can also be fixed by screws on son or in upper mold portion.Specifically, pass through
Entering sub- peripheral side setting screw hole, punch is being fixed in son by screw；It can also be by setting screw hole on punch, it will
Punch is directly fixed with upper mold portion.
As another embodiment, the fixing end periphery of punch and enter sub- inner circumferential and be provided with certain taper cooperation, it can be to prevent
Only punch is fallen, while also changes the stressing conditions of punch, specifically, because the contact area of punch and upper mold portion increases, is made
The pressure that punch is subject to waits until to disperse, and increases the service life of punch.
In embodiments of the present invention, 211 lower section of the first forming hole of the cavity plate 21 is provided with up-small and down-big step and leads to
Hole 22.The step through-hole 22 connects 211 bottom of the first forming hole of the cavity plate 21 and the bottom of the lower mold portion 2, passes through
The step through-hole 22 is, it can be achieved that move back the function of mould.
Further, 22 aperture of step through-hole connects 211 bottom of the first forming hole of the cavity plate 21, the step
22 macropore of through-hole connects 2 bottom of lower mold portion.
In embodiments of the present invention, it is provided in the step through-hole 22 and accordingly moves back mode structure, the mode structure that moves back includes：
The fore-set 4 that can be taken off being set in 22 macropore of step through-hole and the thimble 5 being set in 22 aperture of step through-hole.
Workpiece 6 is ejected the cavity plate 21 by the mode structure that moves back for the support workpiece 6 when pier is pressed and when moving back mould.The fore-set 4
It is arranged in 22 macropore of step through-hole, is used to support the thimble 5, it is small that the thimble 5 is arranged on the step through-hole 22
In hole, the cavity plate 21 is sealed, and support pole with the cavity plate 21 cooperation when pier is pressed.
Further, the thimble 5 is T-shaped cylinder, and the one end being relatively large in diameter is arranged on the fore-set 4, Ke Yifen
Dissipate the pressure that the thimble 5 is subject to.Described smaller one end of 5 diameter of thimble is arranged in 22 aperture of step through-hole, described
The diameter of 5 smaller one end of thimble is adapted with 22 hole diameter of step through-hole, and the diameter of larger one end is more than described
22 hole diameter of step through-hole, and less than the 22 macropore internal diameter of step through-hole.The diameter of the fore-set 4 leads to less than the step
The internal diameter of 22 macropore of hole, and more than the diameter of described 5 larger one end of thimble.
In addition, as a kind of embodiment, thimble and fore-set can be integral structures.
It as a kind of embodiment, is provided in the step through-hole and moves back mode structure accordingly, the mode structure that moves back is gas
Cylinder.It can make to move back mold process using cylinder lighter.
Preferably, 322 periphery of punch pier pressure side is provided with annular deep gouge (not shown).The annular deep gouge can
Pole is made to form an annular convex platform when pier is pressed, annular convex platform facilitates positioning pole.
As Figure 1-10 shows, the present invention also provides a kind of piers of pole pier compression mould to press method, including step：
Workpiece 6 is placed on pier pressure station, is molded workpiece press-in cavity plate 211 by punch-pin；Wherein, the cavity plate 21 wraps
The first forming hole 211 and the second forming hole 212 are included, second forming hole 212 is set to 211 top of the first forming hole
And diameter is more than first forming hole 211, the hole wall setting in an inverted cone of first forming hole 211.
In embodiments of the present invention, step is further included：
Workpiece 6 after molding is ejected from 211 bottom of the first forming hole of cavity plate 21.Because the hole of the first forming hole 211
Wall setting in an inverted cone is moved back more convenient when mould.
Further, it is in the logical of 211 bottom of the first forming hole by cylinder workpiece 6 after molding to be ejected from cavity plate 21
It is ejected at hole.It can make to move back mold process using cylinder lighter.
In embodiments of the present invention, step is further included：
The workpiece of ejection is made annealing treatment, annealing can allow workpiece eliminate residual stress, stable dimensions,
Reduce deformation and crackle tendency；And also make workpiece crystal grain thinning, adjust tissue, eliminate tissue defects.
Specifically, coordinate with the limited block 323 on punch 32 by entering the limited mouth 311 on son 31 and be fixed on punch 32
Enter in son 31；Coordinated by screw with entering the countersunk screw holes 12 of son 31 and upper mold portion 1, make to be fixedly connected with upper mold portion 1 into son 31.
The limited mouth 311 forms a limit space with the upper mold portion 1, and the limited block 323 is arranged in the limit space,
The insertion to the punch 32 is formed, and can prevent the punch 32 from rotating.Specifically, 1 lower section of upper mold portion is set
Have with it is described enter the adaptable limiting grooves 11 of son 31；It is described enter son 31 the upper mold is provided with corresponding countersunk screw holes 12,
It is connected by screw.The limiting groove 11 be used to limiting it is described enter son 31 position, enable it is described enter son 31 precisely fix
In the upper mold portion 1, and press through Cheng Buhui in pier and rotate.The screw by the countersunk screw holes 12 connect it is described enter son
31 with the upper mold portion 1, enable it is described enter son 31 be more securely connected in the upper mold portion 1, but also can be by taking
Under the screw make it is described enter son 31 dismantle and removes from the upper mold portion 1, be convenient for changing into sub 31 or punch 32.Specifically,
It is described enter sub 31 upper surfaces be provided with limited mouth 311, the upper surface of 32 fixing end 321 of punch be provided with limited block 323 with
The limited mouth 311 coordinates so as to enter in son 31 described in the insertion of the punch 32.The limited mouth 311 it is described enter son 31 and institute
It states when upper mold portion 1 connects and forms a limit space, the limited block 323 is arranged in the limit space so that the punch
32 be embedded in it is described enter son 31 in, so as to the fixed punch 32, also, the limit space coordinates with the limited block 323
The punch 32 is made not rotate.
Workpiece is put into the pier pressure station of cavity plate 21；Pass through the 211 lower section step through-hole 22 of the first forming hole of cavity plate 21
In thimble 5 coordinate with fore-set 4 and seal 211 lower end of the first forming hole of cavity plate 21.The thimble 5 plays support workpiece 6
Effect, the fore-set 4 supports the thimble 5, and shares the pressure that the thimble 5 is subject to.Specifically, the thimble 5 is T-shaped circle
Cylinder, the one end being relatively large in diameter are arranged on the fore-set 4, can disperse the pressure that the thimble 5 is subject to.The thimble 5 is straight
The smaller one end of diameter is arranged in 22 aperture of step through-hole, and the diameter of described 5 smaller one end of thimble leads to the step
22 hole diameter of hole is adapted, and the diameter of larger one end is more than 22 hole diameter of step through-hole, and less than the step
22 macropore internal diameter of through-hole.The diameter of the fore-set 4 be less than 22 macropore of step through-hole internal diameter, and more than the thimble 5 compared with
The diameter of big one end.
By the pushing of upper mold portion 1, punch 32 is driven to carry out pier pressure to the workpiece 6 in 2 cavity plate 21 of lower mold portion；Return upper mold
Portion 1 obtains molding workpiece 6.
By pushing fore-set 4, drive the thimble 5 being arranged on fore-set 4 that molding workpiece is ejected the cavity plate 21.It is described
Mode structure is moved back in the formation of thimble 5 and the fore-set 4, after workpiece 6 be molded, need to utilize move back mode structure pole 4 is ejected it is described recessed
Mould 21 makes annealing treatment the workpiece 6 being ejected.
Above-described embodiment is merely to illustrate the specific embodiment of the present invention.It should be pointed out that for the general of this field
For logical technical staff, without departing from the inventive concept of the premise, several deformations and variation can also be made, these deformations and
Variation should all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of pole pier compression mould, including：Upper mold portion, lower mold portion；It is characterized in that, the upper mold portion is provided with removably
Punch-pin, the lower mold portion are provided with for molding cavity plate；
Wherein, the punch-pin includes：Be detachably arranged at the upper mold portion enter son and be arranged on it is described enter son in punch, institute
State punch fixing end be removably arranged on it is described enter son in, the punch pier pressure side is tapered cylinder；
The cavity plate includes the first forming hole and the second forming hole, and second forming hole is set on first forming hole
Portion and diameter are more than first forming hole, the hole wall setting in an inverted cone of first forming hole.
2. pole pier compression mould as described in claim 1, which is characterized in that be provided with below the upper mold portion with it is described enter son
Adaptable limiting groove；It is described enter son the upper mold is provided with corresponding countersunk screw holes, be connected by screw.
3. pole pier compression mould as claimed in claim 1 or 2, which is characterized in that it is described enter son fixing end upper surface setting
There is limited mouth, the punch upper end is provided with limited block and coordinates with the limited mouth so as to enter in son described in punch insertion.
4. pole pier compression mould as described in claim 1, which is characterized in that be provided with below first forming hole it is small under
Big step through-hole.
5. pole pier compression mould as claimed in claim 4, which is characterized in that be provided in the step through-hole and move back mould accordingly
Structure, the mode structure that moves back include：The fore-set that can be taken off that is set in the step through-hole macropore and it is set to the step
Thimble in through-hole aperture.
6. pole pier compression mould as claimed in claim 4, which is characterized in that be provided in the step through-hole and move back mould accordingly
Structure, the mode structure that moves back is cylinder.
7. pole pier compression mould as described in claim 1, which is characterized in that it is heavy that the punch pier pressure side periphery is provided with annular
Slot.
8. a kind of pier pressure method of pole pier compression mould as described in claim 1, which is characterized in that including step：
Workpiece is placed on pier pressure station, workpiece is pressed into cavity plate by punch-pin is molded；
Wherein, the cavity plate includes the first forming hole and the second forming hole, and second forming hole is set to the first one-tenth described
Type hole top and diameter are more than first forming hole, the hole wall setting in an inverted cone of first forming hole.
9. pier as claimed in claim 8 presses method, which is characterized in that further includes step：
Workpiece after molding is ejected from the first forming hole bottom of cavity plate.
10. pier as claimed in claim 9 presses method, which is characterized in that further includes step：
The workpiece of ejection is made annealing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234158.3A CN108213305A (en) | 2018-03-20 | 2018-03-20 | A kind of pole pier compression mould and pier pressure method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234158.3A CN108213305A (en) | 2018-03-20 | 2018-03-20 | A kind of pole pier compression mould and pier pressure method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108213305A true CN108213305A (en) | 2018-06-29 |
Family
ID=62659844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234158.3A Pending CN108213305A (en) | 2018-03-20 | 2018-03-20 | A kind of pole pier compression mould and pier pressure method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108213305A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05169182A (en) * | 1991-12-16 | 1993-07-09 | Obara Kinzoku Kogyo Kk | Method for working bushing for battery pole and forging header and thread rolling device used for the same |
| JPH08206767A (en) * | 1995-02-07 | 1996-08-13 | Daido Steel Co Ltd | Metal part and its manufacture |
| JPH09298056A (en) * | 1996-01-16 | 1997-11-18 | Matsushita Electric Ind Co Ltd | Molding method for collecting terminal for storage battery |
| CN201744602U (en) * | 2010-08-30 | 2011-02-16 | 浙江跃进锻造有限公司 | Forging die |
| CN102430692A (en) * | 2011-10-19 | 2012-05-02 | 浙江工业大学 | Cold precision forging process for bevel gear and mould thereof |
| CN205519183U (en) * | 2016-01-20 | 2016-08-31 | 长沙格力暖通制冷设备有限公司 | Punch head assembly |
| CN106670367A (en) * | 2017-02-21 | 2017-05-17 | 苏州孚莱博精密金属科技有限公司 | Cold heading die set for manufacturing oil pipe joint and cold heading process |
| CN207098255U (en) * | 2017-07-19 | 2018-03-13 | 奥顿电气有限公司 | A kind of adjustable forging equipment of electrical apparatus interstar connection terminal |
| CN208787447U (en) * | 2018-03-20 | 2019-04-26 | 深圳市瑞德丰精密制造有限公司 | A kind of pole pier compression mould |
-
2018
- 2018-03-20 CN CN201810234158.3A patent/CN108213305A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05169182A (en) * | 1991-12-16 | 1993-07-09 | Obara Kinzoku Kogyo Kk | Method for working bushing for battery pole and forging header and thread rolling device used for the same |
| JPH08206767A (en) * | 1995-02-07 | 1996-08-13 | Daido Steel Co Ltd | Metal part and its manufacture |
| JPH09298056A (en) * | 1996-01-16 | 1997-11-18 | Matsushita Electric Ind Co Ltd | Molding method for collecting terminal for storage battery |
| CN201744602U (en) * | 2010-08-30 | 2011-02-16 | 浙江跃进锻造有限公司 | Forging die |
| CN102430692A (en) * | 2011-10-19 | 2012-05-02 | 浙江工业大学 | Cold precision forging process for bevel gear and mould thereof |
| CN205519183U (en) * | 2016-01-20 | 2016-08-31 | 长沙格力暖通制冷设备有限公司 | Punch head assembly |
| CN106670367A (en) * | 2017-02-21 | 2017-05-17 | 苏州孚莱博精密金属科技有限公司 | Cold heading die set for manufacturing oil pipe joint and cold heading process |
| CN207098255U (en) * | 2017-07-19 | 2018-03-13 | 奥顿电气有限公司 | A kind of adjustable forging equipment of electrical apparatus interstar connection terminal |
| CN208787447U (en) * | 2018-03-20 | 2019-04-26 | 深圳市瑞德丰精密制造有限公司 | A kind of pole pier compression mould |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213200 Minghu Road, Jintan District, Changzhou City, Jiangsu Province, 399 Applicant after: Changzhou Redford Precision Technology Co.,Ltd. Address before: Guangming Martin street Shenzhen city Guangdong province 518000 water Sixth Industrial Zone xufa Science Park 6, building 7, building 3 floor 3A Applicant before: SHENZHEN RED FAIRY PRECISION TECHNOLOGY CO., LTD. |