CN205270545U - Punching die - Google Patents
Punching die Download PDFInfo
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- CN205270545U CN205270545U CN201520913275.4U CN201520913275U CN205270545U CN 205270545 U CN205270545 U CN 205270545U CN 201520913275 U CN201520913275 U CN 201520913275U CN 205270545 U CN205270545 U CN 205270545U
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- die
- punching
- core
- slide block
- pulling slide
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Abstract
The utility model provides a punching die belongs to mould equipment field for the stamping forming in a plurality of holes on the metal tubular product, including upper die base, die holder, die shank, terrace die, die, guide pillar and guide pin bushing, the terrace die is installed in the lower surface of upper die base, and the die is installed in the upper surface of die holder, and the terrace die has a plurality of portions of punching a hole, and a plurality of portions of punching a hole set up along the extending direction interval of the die cavity of die, punching die still includes the oblique slider mechanism of loosing core, and the slider is loosed core the mechanism and including loosing core the slider, is provided with a plurality of second shaping holes on the slider of loosing core to one side, and during the punching die die sinking, the die cavity of die is taken out to the slider of loosing core, during the punching die compound die, the slider of loosing core inserts the die cavity of die, makes a plurality of second shaping holes one -to -one in a plurality of portions of punching a hole. When this punching die carries out the punching press in a plurality of holes, metal tubular product non -deformable, the shaping high quality in hole has improved the efficiency of processing, has saved the processing cost.
Description
Technical field
The utility model relates to field of die equipment, specifically, it relates to a kind of punching die.
Background technology
Usually needing at the side-wall hole of metal pipe material or groove in mechanical workout is produced, boring or Milling Machining if adopted, its workload is big, inefficiency and dangerous. Adopt piercing die punch press process, can boost productivity, and constant product quality, security height, but existing piercing die exists some defects, existing piercing die is a punch only, and a punching press can only rush a hole, if on metal pipe material during the multiple hole of punching press continuous print, the piercing die of prior art is adopted to need repetition punching action just can complete the impact briquetting in multiple hole.
Contriver finds under study for action, and the punching die carrying out multiple hole of the prior art at least exists following shortcoming:
One, when carrying out the punching press of continuous aperture, the adjacent metal pipe material between hole easily deforms, and causes the quality of punching failure or punching poor, waste material, and adds cost;
When two, existing piercing die carries out the punching press in multiple hole, it is necessary to repeat to install metal pipe material, reduce production efficiency, turn increase the error of installation simultaneously, and then the punching precision in hole is low, the qualification rate decline of product, adds cost;
Its three, in order to ensure the precision of punching, it is necessary to arrange extra locating mechanism, mould structure is complicated, adds the manufacturing cost of mould.
Practical novel content
The purpose of this utility model is to provide a kind of punching die, during to improve the punching die punching of prior art metal pipe material easily deform and the quality in hole low, reduce the problem of conforming product rate.
The utility model is achieved in that
Based on above-mentioned purpose, the utility model provides a kind of punching die, the impact briquetting in multiple hole on metal pipe material, described multiple hole is arranged along the axial direction due interval of described metal pipe material, and the axial line in described multiple hole is positioned at same plane, comprise die holder, lower die holder, mould handle, punch, die, guide pillar and guide pin bushing, wherein:
Described punch is installed on the lower surface of described upper die holder, and described die is installed on the upper surface of described lower die holder, and described punch has multiple punching portion, and described multiple punching portion is arranged along the bearing of trend interval of the die cavity of described die; Described die is provided with multiple first forming hole, and described multiple first forming hole and described multiple punching portions one_to_one corresponding are arranged;
Described punching die also comprises oblique slipper block loose core mechanism, and described oblique slipper block loose core mechanism comprises core-pulling slide block, and described core-pulling slide block is provided with multiple 2nd forming hole, and during described punching die die sinking, described core-pulling slide block extracts the die cavity of described die out; When described punching die closes mould, described core-pulling slide block inserts the die cavity of described die, makes described multiple 2nd forming hole one_to_one corresponding in described multiple punching portion.
Preferably, described punching portion has installs end and the punching end for punching, and the diameter of described punching end is less than the diameter of described installation end, and described punching end and described installation end are coaxially arranged.
Preferably, described oblique slipper block loose core mechanism also comprises hydraulic drive mechanism, and the output terminal of described hydraulic drive mechanism is fixedly connected with described core-pulling slide block, and for driving, described core-pulling slide block back and forth slides described hydraulic drive mechanism relative to described die.
Preferably, described oblique slipper block loose core mechanism also comprises side draw pin, and described side draw pin is installed on described upper die holder, and described side draw pin and described core-pulling slide block are slidably connected.
Preferably, described punching die also has mount pad, and described mount pad is installed on the upper surface of described lower die holder, and the top of described mount pad is also provided with chute, and described core-pulling slide block is positioned at described chute, and described core-pulling slide block and described chute are slidably connected.
Preferably, described oblique slipper block loose core mechanism also comprises limit assembly, and described limit assembly is installed on described mount pad, and described limit assembly is used for preventing described core-pulling slide block from skidding off described chute outwardly.
Preferably, described limit assembly comprises baffle plate, gag lever post and spring, wherein, described baffle plate is fixedly installed in described mount pad, the plate face of described baffle plate is perpendicular to the plate face of described lower die holder, described gag lever post passes perpendicularly through described baffle plate, and described gag lever post can slide relative to described baffle plate along its axial direction due; One end of described gag lever post is fixedly connected with described core-pulling slide block, and the other end of described gag lever post is bolted with nut; Described spring is set on described gag lever post, and described spring is between described nut and described baffle plate, and the two ends of described spring are individually fixed in described nut and described baffle plate.
Preferably, it is provided with the first backing plate between described die and described lower die holder.
Preferably, the 2nd backing plate it is provided with between described lower die holder and described punch.
Preferably, described guide pillar being arranged with buffer spring, described buffer spring is between described guide pin bushing and described lower die holder.
The beneficial effects of the utility model are:
In sum, the punching die that the utility model provides, the structure of this punching die is simple, convenient processing and manufacture, low cost of manufacture; Meanwhile, when this punching die carries out the punching press in multiple hole, metal pipe material is not easily out of shape, the Forming Quality height in hole, it is to increase the efficiency of processing, saves tooling cost. Specific as follows:
This punching die comprises punch and die, and punch and die are installed on die holder and lower die holder respectively, are completed the punching processing of metal pipe material by the moving process of mould. Having multiple punching portion on punch, punching portion is used for punching, designs the quantity in punching portion according to practical situation, and convenient processing and manufacture, is convenient to the punching of the metal section bar of different size, it is to increase production efficiency. Meanwhile, this punching die also has oblique slipper block loose core mechanism, and described oblique slipper block loose core mechanism comprises core-pulling slide block, and described core-pulling slide block is for carrying the surging force that when punch works, metal pipe material is subject to. Namely, closing in mould process, the working end of core-pulling slide block is stretched in the pipe chamber of metal pipe material, during the downward punching press of punch, the masterpiece of the pressing part of punch is used on metal pipe material, then by metal pipe material, power being passed to core-pulling slide block, make metal pipe material be subject to uniform surging force, metal pipe material is not easily towards the radial direction in pipe chamber towards internal strain. After punching completes, there is not deformation in metal pipe material, can not affect the use of metal pipe material, meanwhile, the quality height of punching, reduces follow-up amount of finish, it is to increase production efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, it is briefly described to the accompanying drawing used required in embodiment below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore should not be counted as is the restriction to scope, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The front view of the punching die that Fig. 1 provides for the utility model;
The side-view of the punching die that Fig. 2 provides for the utility model;
The sectional view of the mount pad of the punching die that Fig. 3 provides for the utility model;
The installation structure iron of the oblique slipper block loose core mechanism of the punching die that Fig. 4 provides for the utility model;
The vertical view of the die of the punching die that Fig. 5 provides for the utility model.
Reference numeral gathers:
Upper die holder 200, lower die holder 300, mould handle 400, punch 500, die 600, guide pillar 700, guide pin bushing 800,
Punching portion 101, core-pulling slide block 102, side draw pin 103, hydraulic drive mechanism 104, the first forming hole the 105, two forming hole 106,
Mount pad 201, chute 202, baffle plate 203, gag lever post 204, spring 205, the first backing plate the 206, two backing plate 207,
Buffer spring 301.
Embodiment
Adopt piercing die punch press process, it is possible to boost productivity, and constant product quality, security height, but there are some defects in existing piercing die, and existing piercing die is a punch only, a punching press can only rush a hole, if on metal pipe material during the multiple hole of punching press continuous print, it is necessary to repeat to install metal pipe material, reduce production efficiency, turn increase the error of installation simultaneously, and then the punching precision in hole is low, the qualification rate decline of product, adds cost.
Given this, planner of the present utility model devises a kind of punching die, when carrying out punching, core-pulling slide block is positioned at the pipe chamber of metal pipe material, and during the downward punching press of punch, core-pulling slide block can bear the power that punch is applied on metal pipe material, metal pipe material not easily deforms, the quality of punching can not be affected, it is possible to the multiple hole of once shaped, it is to increase the efficiency produced.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments. The assembly of the utility model embodiment usually describing in accompanying drawing herein and illustrating can be arranged with various different configuration and design. Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but only represent selected embodiment of the present utility model. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that: similar label and letter accompanying drawing below represents similar item, therefore, once a certain Xiang Yi accompanying drawing is defined, then do not need it carries out definition further and explains in accompanying drawing subsequently.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", it is based on orientation shown in the drawings or position relation that the orientation of the instruction such as " counterclockwise " or position are closed, it is only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the equipment referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " the 2nd " are only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technology feature. Thus, be limited with " first ", the feature of " the 2nd " can express or implicit comprise one or more these features. In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, such as, it is possible to be fixedly connected with, it is also possible to be removably connect, or integral; Can be mechanically connected, it is also possible to be electrical connection; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals or the interaction relationship of two elements. For the ordinary skill in the art, it is possible to understand the concrete implication of above-mentioned term in the utility model according to particular case.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, it is also possible to comprise the first and second features be not directly contact but by the other characterisation contact between them. And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature. Fisrt feature second feature " under ", " lower section " and " below " comprise fisrt feature immediately below second feature and tiltedly lower section, or only represent that fisrt feature level height is less than second feature.
Referring to Fig. 1-5, wherein, Fig. 4 only installs schematic diagram in a mold to express oblique slipper block loose core mechanism, therefore, illustrate only the part-structure of mould. Present embodiments provide a kind of punching die, the impact briquetting in multiple hole on metal pipe material, described multiple hole is arranged along the axial direction due interval of described metal pipe material, and the axial line in described multiple hole is positioned at same plane, comprise die holder 200, lower die holder 300, mould handle 400, punch 500, die 600, guide pillar 700 and guide pin bushing 800, wherein:
Described punch 500 is installed on the lower surface of described upper die holder 200, described die 600 is installed on the upper surface of described lower die holder 300, described punch 500 has multiple punching portion 101, and described multiple punching portion 101 is arranged along the bearing of trend interval of the die cavity of described die 600; Described die 600 is provided with multiple first forming hole 105, and described multiple first forming hole 105 is arranged with described multiple punching portions 101 one_to_one corresponding;
Described punching die also comprises oblique slipper block loose core mechanism, described oblique slipper block loose core mechanism comprises core-pulling slide block 102, being provided with multiple 2nd forming hole 106 on described core-pulling slide block 102, during described punching die die sinking, described core-pulling slide block 102 extracts the die cavity of described die 600 out; When described punching die closes mould, described core-pulling slide block 102 inserts the die cavity of described die 600, makes described multiple 2nd forming hole 106 one_to_one corresponding in described multiple punching portion 101.
The punching die that the present embodiment provides, the structure of this punching die is simple, convenient processing and manufacture, low cost of manufacture; Meanwhile, when this punching die carries out the punching press in multiple hole, metal pipe material is not easily out of shape, the Forming Quality height in hole, it is to increase the efficiency of processing, saves tooling cost. Specific as follows:
This punching die comprises. Simultaneously, this punching die also comprises punch 500 and die 600, punch 500 and die 600 are installed on die holder 200 and lower die holder 300 respectively, actual add man-hour, for the ease of maintenance and the replacing of punch 500, die 600, employing screw connects, the quantity of screw is selected according to practical situation, it is preferable that be set to, and the surrounding of described punch 500 and described die 600 is fixedly connected with by screw respectively, fixing mode is simple and reliable, and structure is firm.
The punching processing of metal pipe material is completed by the moving process of mould. Having multiple punching portion 101 on punch 500, punching portion 101, for punching, designs the quantity in punching portion 101 according to practical situation, and convenient processing and manufacture, is convenient to the punching of the metal section bar of different size, it is to increase production efficiency. Meanwhile, this punching die also has oblique slipper block loose core mechanism, and described oblique slipper block loose core mechanism comprises core-pulling slide block 102, and described core-pulling slide block 102 is for carrying the surging force that when punch 500 works, metal pipe material is subject to. Namely, closing in mould process, the working end of core-pulling slide block 102 is stretched in the pipe chamber of metal pipe material, during punch 500 punching press downwards, the masterpiece of the pressing part of punch 500 is used on metal pipe material, then by metal pipe material, power being passed to core-pulling slide block 102, make metal pipe material be subject to uniform surging force, metal pipe material is not easily towards the radial direction in pipe chamber towards internal strain. After punching completes, there is not deformation in metal pipe material, can not affect the use of metal pipe material, meanwhile, the quality height of punching, reduces follow-up amount of finish, it is to increase production efficiency.
In the preferred version of this embodiment, described punching portion 101 has installs end and the punching end for punching, and the diameter of described punching end is less than the diameter of described installation end, and described punching end and described installation end are coaxially arranged. Actual adding man-hour, described punch 500 adopts GCr15 steel to make, intensity height, not frangibility; Meanwhile, punch 500 is designed to ladder shape, the rigidity height of punch 500, not frangibility.
In the preferred version of this embodiment, described oblique slipper block loose core mechanism also comprises hydraulic drive mechanism 104, the output terminal of described hydraulic drive mechanism 104 is fixedly connected with described core-pulling slide block 102, and for driving, described core-pulling slide block 102 back and forth slides described hydraulic drive mechanism 104 relative to described die 600. Driven the motion of core-pulling slide block 102 by hydraulic drive mechanism 104, type of drive is safe and reliable, and die sinking and conjunction mould process are convenient. Hydraulic drive mechanism 104 comprises hydro-cylinder and piston, and it is prior art, and its structure is not improved by the present embodiment, is not therefore described in detail.
In the preferred version of this embodiment, described oblique slipper block loose core mechanism also comprises side draw pin 103, described side draw pin 103 is installed on described upper die holder 200, described side draw pin 103 is slidably connected with described core-pulling slide block 102, adopts side draw pin 103 to lead, and during die sinking, core-pulling slide block 102 is extracted out automatically from the pipe chamber of metal pipe material, when closing mould, core-pulling slide block 102 stretches in the pipe chamber of metal pipe material, whole process operation is convenient and swift, it is to increase production efficiency.
Man-hour is added actual, for the ease of the installation of oblique slipper block loose core mechanism, in the preferred version of this embodiment, described punching die also has mount pad 201, described mount pad 201 is installed on the upper surface of described lower die holder 300, the top of described mount pad 201 is also provided with chute 202, and described core-pulling slide block 102 is positioned at described chute 202, and described core-pulling slide block 102 is slidably connected with described chute 202. Mount pad 201 is installed on described lower die holder 300, it is not necessary on lower die holder 300, carry out the processing of mount pad 201, lower die holder 300 easy to process; Meanwhile, adopt screw to be installed on by mount pad 201 on lower die holder 300, mount pad 201 convenient disassembly, it is convenient to change and maintenance. Being provided with chute 202 on mount pad 201, be convenient to the location of core-pulling slide block 102, core-pulling slide block 102 slides more accurate in chute 202. Preferably being set to, described chute 202 is oat tail groove structure with coordinating of described core-pulling slide block 102, for the ease of processing, it is also possible to adopt the cooperation of T-shaped groove.
In the preferred version of this embodiment, described oblique slipper block loose core mechanism also comprises limit assembly, and described limit assembly is installed on described mount pad 201, and described limit assembly is used for preventing described core-pulling slide block 102 from skidding off described chute 202 outwardly. When core-pulling slide block 102 slides safer, reduce maintenance and maintenance number of times, save manpower and materials.
In the preferred version of this embodiment, described limit assembly comprises baffle plate 203, gag lever post 204 and spring 205, wherein, described baffle plate 203 is fixedly installed in described mount pad 201, the plate face of described baffle plate 203 is perpendicular to the plate face of described lower die holder 300, described gag lever post 204 passes perpendicularly through described baffle plate 203, and described gag lever post 204 can slide relative to described baffle plate 203 along its axial direction due; One end of described gag lever post 204 is fixedly connected with described core-pulling slide block 102, and the other end of described gag lever post 204 is bolted with nut; Described spring 205 is set on described gag lever post 204, and described spring 205 is between described nut and described baffle plate 203, and the two ends of described spring 205 are individually fixed in described nut and described baffle plate 203. Good limit effect, meanwhile, in die sinking and conjunction mould process, spring 205 has pulling force, is convenient to the motion of core-pulling slide block 102, and core-pulling slide block 102 is subject to the elastic force effect of spring 205 with side draw pin 103, and core-pulling slide block 102 coordinates tightr with side draw pin 103.
In the preferred version of this embodiment, the first backing plate 206 it is provided with between described die 600 and described lower die holder 300, further, the 2nd backing plate 207 it is provided with between described punch 500 and described upper die holder 200, close in mould process, producing very big surging force between upper die holder 200 and lower die holder 300, backing plate can reduce surging force, increases the mold use life-span.
In the preferred version of this embodiment, described guide pillar 700 being arranged with buffer spring 301, described buffer spring 301 is between described guide pin bushing 800 and described lower die holder 300, it is possible to reduces surging force when closing mould further, increases the mold use life-span. Specifically add man-hour, guide pillar 700 described in each is respectively arranged with shock spring 205, more even by power when whole punching die die sinking, conjunction mould, ensure that the precision of punching.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a punching die, the impact briquetting in multiple hole on metal pipe material, described multiple hole is arranged along the axial direction due interval of described metal pipe material, and the axial line in described multiple hole is positioned at same plane, it is characterized in that, comprise die holder, lower die holder, mould handle, punch, die, guide pillar and guide pin bushing, wherein:
Described punch is installed on the lower surface of described upper die holder, and described die is installed on the upper surface of described lower die holder, and described punch has multiple punching portion, and described multiple punching portion is arranged along the bearing of trend interval of the die cavity of described die; Described die is provided with multiple first forming hole, and described multiple first forming hole and described multiple punching portions one_to_one corresponding are arranged;
Described punching die also comprises oblique slipper block loose core mechanism, and described oblique slipper block loose core mechanism comprises core-pulling slide block, and described core-pulling slide block is provided with multiple 2nd forming hole, and during described punching die die sinking, described core-pulling slide block extracts the die cavity of described die out; When described punching die closes mould, described core-pulling slide block inserts the die cavity of described die, makes described multiple 2nd forming hole one_to_one corresponding in described multiple punching portion.
2. punching die according to claim 1, it is characterised in that, described punching portion has installs end and the punching end for punching, and the diameter of described punching end is less than the diameter of described installation end, and described punching end and described installation end are coaxially arranged.
3. punching die according to claim 2, it is characterized in that, described oblique slipper block loose core mechanism also comprises hydraulic drive mechanism, the output terminal of described hydraulic drive mechanism is fixedly connected with described core-pulling slide block, and for driving, described core-pulling slide block back and forth slides described hydraulic drive mechanism relative to described die.
4. punching die according to claim 2, it is characterised in that, described oblique slipper block loose core mechanism also comprises side draw pin, and described side draw pin is installed on described upper die holder, and described side draw pin and described core-pulling slide block are slidably connected.
5. punching die according to claim 3 or 4, it is characterized in that, described punching die also has mount pad, described mount pad is installed on the upper surface of described lower die holder, the top of described mount pad is also provided with chute, described core-pulling slide block is positioned at described chute, and described core-pulling slide block and described chute are slidably connected.
6. punching die according to claim 5, it is characterised in that, described oblique slipper block loose core mechanism also comprises limit assembly, and described limit assembly is installed on described mount pad, and described limit assembly is used for preventing described core-pulling slide block from skidding off described chute outwardly.
7. punching die according to claim 6, it is characterized in that, described limit assembly comprises baffle plate, gag lever post and spring, wherein, described baffle plate is fixedly installed in described mount pad, the plate face of described baffle plate is perpendicular to the plate face of described lower die holder, and described gag lever post passes perpendicularly through described baffle plate, and described gag lever post can slide relative to described baffle plate along its axial direction due; One end of described gag lever post is fixedly connected with described core-pulling slide block, and the other end of described gag lever post is bolted with nut; Described spring is set on described gag lever post, and described spring is between described nut and described baffle plate, and the two ends of described spring are individually fixed in described nut and described baffle plate.
8. punching die according to claim 1, it is characterised in that, it is provided with the first backing plate between described die and described lower die holder.
9. punching die according to claim 8, it is characterised in that, it is provided with the 2nd backing plate between described lower die holder and described punch.
10. punching die according to claim 9, it is characterised in that, described guide pillar is arranged with buffer spring, described buffer spring is between described guide pin bushing and described lower die holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913275.4U CN205270545U (en) | 2015-11-16 | 2015-11-16 | Punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520913275.4U CN205270545U (en) | 2015-11-16 | 2015-11-16 | Punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205270545U true CN205270545U (en) | 2016-06-01 |
Family
ID=56055166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520913275.4U Withdrawn - After Issue CN205270545U (en) | 2015-11-16 | 2015-11-16 | Punching die |
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| Country | Link |
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| CN (1) | CN205270545U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251865A (en) * | 2015-11-16 | 2016-01-20 | 重庆持恒模具有限公司 | Punching die |
| CN105855588A (en) * | 2016-06-15 | 2016-08-17 | 常州市荣顺电子有限公司 | Perforating device for metal tube |
| CN108160734A (en) * | 2017-12-28 | 2018-06-15 | 天津中嘉利达机械部件有限公司 | A kind of spline housing molding die |
| CN110000279A (en) * | 2019-04-04 | 2019-07-12 | 无锡市华吉型材科技有限公司 | The reversed punching apparatus of automobile collision preventing steel pipe and processing technology |
-
2015
- 2015-11-16 CN CN201520913275.4U patent/CN205270545U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251865A (en) * | 2015-11-16 | 2016-01-20 | 重庆持恒模具有限公司 | Punching die |
| CN105855588A (en) * | 2016-06-15 | 2016-08-17 | 常州市荣顺电子有限公司 | Perforating device for metal tube |
| CN108160734A (en) * | 2017-12-28 | 2018-06-15 | 天津中嘉利达机械部件有限公司 | A kind of spline housing molding die |
| CN110000279A (en) * | 2019-04-04 | 2019-07-12 | 无锡市华吉型材科技有限公司 | The reversed punching apparatus of automobile collision preventing steel pipe and processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20180511 |