CN108176771A - Lower die fixing mechanism with height capable of being finely adjusted - Google Patents
Lower die fixing mechanism with height capable of being finely adjusted Download PDFInfo
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- CN108176771A CN108176771A CN201711483338.7A CN201711483338A CN108176771A CN 108176771 A CN108176771 A CN 108176771A CN 201711483338 A CN201711483338 A CN 201711483338A CN 108176771 A CN108176771 A CN 108176771A
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- lower mold
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- 238000005485 electric heating Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
技术领域:Technical field:
本发明涉及冲压模具设备技术领域,更具体的说涉及一种高低可微调的下模固定机构。The invention relates to the technical field of stamping die equipment, and more specifically relates to a lower die fixing mechanism whose height can be finely adjusted.
背景技术:Background technique:
现有的模具中,其在对金属进行冲压进行时,某些金属的温度需要有一定的保证,而现有的模具一般没有加热装置,无法保证金属冲压的效果,同时,现有的下模其安装一般通过多个螺栓进行固定,其安装拆卸麻烦,效率低。In the existing molds, the temperature of some metals needs to be guaranteed when the metal is stamped. However, the existing molds generally do not have a heating device, which cannot guarantee the effect of metal stamping. At the same time, the existing lower mold Its installation is generally fixed by multiple bolts, and its installation and disassembly are troublesome and inefficient.
发明内容:Invention content:
本发明的目的是克服现有技术的不足,提供一种高低可微调的下模固定机构,它下模安装拆卸快速,而且其具有的环形电加热棒具有加热下模的效果,保证冲压金属的温度要求,而且其可以将下模进行高低微调,满足冲压要求。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a lower mold fixing mechanism whose height can be finely adjusted. temperature requirements, and it can fine-tune the height of the lower die to meet the stamping requirements.
本发明解决所述技术问题的方案是:The scheme that the present invention solves described technical problem is:
一种高低可微调的下模固定机构,包括机架,所述机架的顶板的中部具有中心竖直通槽,下安装块插套在中心竖直通槽中,机架的顶板的下方设有底部支撑板,底部支撑板的侧壁固定在机架的下部支腿的内侧壁上,底部支撑板的两侧底面固定有微调电机,微调电机的输出轴穿过底部支撑板并通过联轴器连接有升降螺套,升降螺杆螺接在升降螺套中,升降螺杆的顶端固定在下安装块的底面上,下安装块的顶面具有安装凹槽,安装凹槽中设有中部安装块,中部安装块的顶面中部具有下模安装槽,下模处于下模安装槽中,下模固定在中部安装块中;A lower mold fixing mechanism whose height can be finely adjusted comprises a frame, the middle part of the top plate of the frame has a central vertical through groove, the lower mounting block is inserted and sleeved in the central vertical through groove, and the bottom of the top plate of the frame is provided with a There is a bottom support plate, the side wall of the bottom support plate is fixed on the inner wall of the lower leg of the frame, the bottom surface of both sides of the bottom support plate is fixed with a fine-tuning motor, the output shaft of the fine-tuning motor passes through the bottom support plate and passes through the coupling The device is connected with a lifting screw sleeve, the lifting screw is screwed in the lifting screw sleeve, the top of the lifting screw is fixed on the bottom surface of the lower mounting block, the top surface of the lower mounting block has a mounting groove, and the middle mounting block is arranged in the mounting groove. The middle part of the top surface of the middle installation block has a lower mold installation groove, the lower mold is in the lower mold installation groove, and the lower mold is fixed in the middle installation block;
所述中部安装块的底面具有多个定位柱,安装凹槽的底面固定有多个与定位柱相对应的下定位部,下定位部和对应的定位柱插套在对应的缓冲弹簧中,缓冲弹簧的顶端固定在中部安装块的底面上,缓冲弹簧的底端固定在安装凹槽的底面上;The bottom surface of the middle mounting block has a plurality of positioning columns, and the bottom surface of the installation groove is fixed with a plurality of lower positioning parts corresponding to the positioning columns, and the lower positioning parts and the corresponding positioning columns are inserted and sleeved in the corresponding buffer springs. The top of the spring is fixed on the bottom surface of the middle mounting block, and the bottom end of the buffer spring is fixed on the bottom surface of the installation groove;
所述安装凹槽的侧壁固定有环形导向块,环形导向块中设有环形电加热棒,中部安装块插套在环形导向块中。A ring-shaped guide block is fixed on the side wall of the installation groove, and a ring-shaped electric heating rod is arranged in the ring-shaped guide block, and the middle installation block is inserted and sleeved in the ring-shaped guide block.
所述环形导向块的内侧壁上固定有自润滑导热块,自润滑导热块紧贴中部安装块的侧壁。A self-lubricating heat-conducting block is fixed on the inner side wall of the annular guide block, and the self-lubricating heat-conducting block is close to the side wall of the middle mounting block.
所述下模安装槽的底面固定有多个强磁铁块,下模的底面具有多个定位凹孔,强磁铁块插套在对应的定位凹孔中并下模相吸附。The bottom surface of the lower mold installation groove is fixed with a plurality of strong magnet blocks, the bottom surface of the lower mold has a plurality of positioning concave holes, the strong magnet blocks are inserted in the corresponding positioning concave holes and the lower mold is adsorbed.
所述下模安装槽的底面边部具有多个主连接柱,主连接柱插套在下模上具有的竖直通孔中,主连接柱的顶端具有螺接部,螺接部伸出下模的顶面并螺接有多个锁紧螺母,最底部的锁紧螺母压靠在下模的顶面上。The bottom edge of the lower mold installation groove has a plurality of main connecting columns, the main connecting columns are inserted into the vertical through holes on the lower mold, the top of the main connecting columns has a screw joint, and the screw joint extends out of the lower mold The top surface of the die is screwed with multiple locking nuts, and the bottommost locking nut presses against the top surface of the lower die.
所述竖直通孔中插套有导向套,导向套的外侧壁固定在竖直通孔的内侧壁上,主连接柱插套在导向套中。A guide sleeve is inserted into the vertical through hole, the outer wall of the guide sleeve is fixed on the inner wall of the vertical through hole, and the main connecting column is inserted into the guide sleeve.
所述中心竖直通槽的内侧壁上固定有自润滑层,自润滑层紧贴下安装块的侧壁。A self-lubricating layer is fixed on the inner side wall of the central vertical through groove, and the self-lubricating layer is close to the side wall of the lower mounting block.
所述下安装块的底面固定有多个竖直导杆,竖直导杆插套在底部支撑板的顶面固定有的竖直导向套中,竖直导杆和竖直导向套插套在对应的支撑弹簧中。The bottom surface of the lower mounting block is fixed with a plurality of vertical guide rods, and the vertical guide rods are inserted into the vertical guide sleeves fixed on the top surface of the bottom support plate, and the vertical guide rods and the vertical guide sleeves are inserted into the in the corresponding support spring.
本发明的突出效果是:与现有技术相比,它下模安装拆卸快速,而且其具有的环形电加热棒具有加热下模的效果,保证冲压金属的温度要求,而且其可以将下模进行高低微调,满足冲压要求。The outstanding effect of the present invention is: compared with the prior art, the installation and disassembly of the lower die is fast, and the ring-shaped electric heating rod it has has the effect of heating the lower die, ensuring the temperature requirements of the stamping metal, and it can carry out the lower die High and low fine adjustment to meet stamping requirements.
附图说明:Description of drawings:
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式:Detailed ways:
实施例,见如图1所示,一种高低可微调的下模固定机构,包括机架10,所述机架10的顶板的中部具有中心竖直通槽101,下安装块11插套在中心竖直通槽101中,机架10的顶板的下方设有底部支撑板16,底部支撑板16的侧壁固定在机架10的下部支腿的内侧壁上,底部支撑板16的两侧底面固定有微调电机17,微调电机17的输出轴穿过底部支撑板16并通过联轴器连接有升降螺套171,升降螺杆172螺接在升降螺套171中,升降螺杆172的顶端固定在下安装块11的底面上,下安装块11的顶面具有安装凹槽111,安装凹槽111中设有中部安装块12,中部安装块12的顶面中部具有下模安装槽121,下模13处于下模安装槽121中,下模13固定在中部安装块12中;Embodiment, as shown in Figure 1, a lower mold fixing mechanism whose height can be finely adjusted includes a frame 10, the middle part of the top plate of the frame 10 has a central vertical through groove 101, and the lower mounting block 11 is inserted into the In the vertical groove 101 of the center, a bottom support plate 16 is provided below the top plate of the frame 10, and the side wall of the bottom support plate 16 is fixed on the inner sidewall of the lower leg of the frame 10, and the both sides of the bottom support plate 16 The bottom surface is fixed with a fine-tuning motor 17, the output shaft of the fine-tuning motor 17 passes through the bottom support plate 16 and is connected with a lifting screw 171 through a coupling, the lifting screw 172 is screwed in the lifting screw 171, and the top of the lifting screw 172 is fixed on the bottom. On the bottom surface of the mounting block 11, the top surface of the lower mounting block 11 has a mounting groove 111, the mounting groove 111 is provided with a middle mounting block 12, and the middle part of the top surface of the middle mounting block 12 has a lower mold mounting groove 121, a lower mold 13 Located in the lower mold installation groove 121, the lower mold 13 is fixed in the middle installation block 12;
所述中部安装块12的底面具有多个定位柱122,安装凹槽111的底面固定有多个与定位柱122相对应的下定位部112,下定位部112和对应的定位柱122插套在对应的缓冲弹簧1中,缓冲弹簧1的顶端固定在中部安装块12的底面上,缓冲弹簧1的底端固定在安装凹槽111的底面上;The bottom surface of the middle mounting block 12 has a plurality of positioning columns 122, and the bottom surface of the mounting groove 111 is fixed with a plurality of lower positioning parts 112 corresponding to the positioning columns 122, and the lower positioning parts 112 and the corresponding positioning columns 122 are inserted into the In the corresponding buffer spring 1, the top end of the buffer spring 1 is fixed on the bottom surface of the middle mounting block 12, and the bottom end of the buffer spring 1 is fixed on the bottom surface of the installation groove 111;
所述安装凹槽111的侧壁固定有环形导向块14,环形导向块14中设有环形电加热棒141,中部安装块12插套在环形导向块14中。A ring-shaped guide block 14 is fixed on the side wall of the installation groove 111 , and a ring-shaped electric heating rod 141 is arranged in the ring-shaped guide block 14 , and the middle installation block 12 is inserted into the ring-shaped guide block 14 .
进一步的说,所述环形导向块14的内侧壁上固定有自润滑导热块142,自润滑导热块142紧贴中部安装块12的侧壁。Furthermore, a self-lubricating heat-conducting block 142 is fixed on the inner side wall of the annular guide block 14 , and the self-lubricating heat-conducting block 142 is close to the side wall of the middle mounting block 12 .
进一步的说,所述下模安装槽121的底面固定有多个强磁铁块123,下模13的底面具有多个定位凹孔,强磁铁块123插套在对应的定位凹孔中并下模13相吸附。Further, the bottom surface of the lower mold mounting groove 121 is fixed with a plurality of strong magnet blocks 123, the bottom surface of the lower mold 13 has a plurality of positioning concave holes, and the strong magnet blocks 123 are inserted into the corresponding positioning concave holes and lowered. 13 phase adsorption.
进一步的说,所述下模安装槽121的底面边部具有多个主连接柱14,主连接柱14插套在下模13上具有的竖直通孔131中,主连接柱14的顶端具有螺接部,螺接部伸出下模13的顶面并螺接有多个锁紧螺母15,最底部的锁紧螺母15压靠在下模13的顶面上。Further, the bottom surface edge of the lower mold installation groove 121 has a plurality of main connecting columns 14, the main connecting columns 14 are inserted into the vertical through holes 131 provided on the lower mold 13, and the top ends of the main connecting columns 14 have screw holes. The screw joint extends out of the top surface of the lower mold 13 and is screwed with a plurality of locking nuts 15 , and the bottommost locking nut 15 presses against the top surface of the lower mold 13 .
进一步的说,所述竖直通孔131中插套有导向套132,导向套132的外侧壁固定在竖直通孔131的内侧壁上,主连接柱14插套在导向套132中。Furthermore, a guide sleeve 132 is inserted into the vertical through hole 131 , the outer wall of the guide sleeve 132 is fixed on the inner wall of the vertical through hole 131 , and the main connecting column 14 is inserted into the guide sleeve 132 .
进一步的说,所述中心竖直通槽101的内侧壁上固定有自润滑层102,自润滑层102紧贴下安装块11的侧壁。Furthermore, a self-lubricating layer 102 is fixed on the inner side wall of the central vertical through groove 101 , and the self-lubricating layer 102 is close to the side wall of the lower mounting block 11 .
进一步的说,所述下安装块11的底面固定有多个竖直导杆18,竖直导杆18插套在底部支撑板16的顶面固定有的竖直导向套19中,竖直导杆18和竖直导向套19插套在对应的支撑弹簧2中。Further, the bottom surface of the lower mounting block 11 is fixed with a plurality of vertical guide rods 18, and the vertical guide rods 18 are inserted into the vertical guide sleeves 19 fixed on the top surface of the bottom support plate 16. The rod 18 and the vertical guide sleeve 19 are inserted and sleeved in the corresponding support spring 2 .
在使用时,通过环形电加热棒141电加热,并通过自润滑导热块142导热到下模13,从而保证下模13中放置的待加工金属部件的温度;而通过强磁铁块123可以快速将下模13实现定位和安装,通过锁紧螺母15固定,非常方便。When in use, it is electrically heated by the annular electric heating rod 141, and conducts heat to the lower mold 13 through the self-lubricating heat conduction block 142, thereby ensuring the temperature of the metal parts to be processed placed in the lower mold 13; The lower mold 13 realizes positioning and installation, and is fixed by a lock nut 15, which is very convenient.
同时,通过微调电机17运行,可以实现下模13的高低位置微调,保证冲压要求。Simultaneously, through the operation of the fine-tuning motor 17, the fine-tuning of the height of the lower die 13 can be realized to ensure the stamping requirements.
最后,以上实施方式仅用于说明本发明,而并非对本发明的限制,有关技术领域的普通技术人员,在不脱离本发明的精神和范围的情况下,还可以做出各种变化和变型,因此所有等同的技术方案也属于本发明的范畴,本发明的专利保护范围应由权利要求限定。Finally, the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those of ordinary skill in the relevant technical fields can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by the claims.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711483338.7A CN108176771A (en) | 2017-12-29 | 2017-12-29 | Lower die fixing mechanism with height capable of being finely adjusted |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711483338.7A CN108176771A (en) | 2017-12-29 | 2017-12-29 | Lower die fixing mechanism with height capable of being finely adjusted |
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| CN108176771A true CN108176771A (en) | 2018-06-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941324A (en) * | 2018-06-28 | 2018-12-07 | 嘉兴维特拉电气科技有限公司 | A kind of Full-automatic punching machine mold |
| CN109016599A (en) * | 2018-09-26 | 2018-12-18 | 东莞市天合机电开发有限公司 | Stamping mechanism adopting multi-forming-block die with adjustable lower die height |
| CN109016598A (en) * | 2018-09-26 | 2018-12-18 | 东莞市天合机电开发有限公司 | Stamping mechanism adopting multi-forming-block die |
| CN109786173A (en) * | 2019-02-25 | 2019-05-21 | 杭州优朴信息技术有限公司 | A kind of vacuum circuit breaker of band buffering attachment base |
| CN110270653A (en) * | 2019-07-22 | 2019-09-24 | 陈杰 | A kind of Preform Die of reflectal wheel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012016721A (en) * | 2010-07-07 | 2012-01-26 | Kobe Steel Ltd | Warm-forming die |
| CN102615201A (en) * | 2012-04-25 | 2012-08-01 | 哈尔滨工业大学 | Cold-hot compound die molding method for aluminum alloy sheet metal component |
| CN204770230U (en) * | 2015-07-20 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | General mould of hot formed technology |
| CN205798090U (en) * | 2016-05-31 | 2016-12-14 | 佛山市联智新创科技有限公司 | A kind of steel plate punched shaping mechanism |
| CN106239122A (en) * | 2016-09-26 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of rubber ring installing mechanism of fire-fighting antiexplosion telephone housing |
| CN106734656A (en) * | 2016-12-26 | 2017-05-31 | 东莞市天合机电开发有限公司 | A kind of motor adjusts the semi-automatic laminating mechanism of buffer-type |
| KR20170064275A (en) * | 2015-12-01 | 2017-06-09 | 주식회사 성우하이텍 | Device for Multi forming |
| CN206747392U (en) * | 2017-03-02 | 2017-12-15 | 苏州廖若机电科技有限公司 | A kind of stainless steel circular sheet origin shaping mechanism |
-
2017
- 2017-12-29 CN CN201711483338.7A patent/CN108176771A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012016721A (en) * | 2010-07-07 | 2012-01-26 | Kobe Steel Ltd | Warm-forming die |
| CN102615201A (en) * | 2012-04-25 | 2012-08-01 | 哈尔滨工业大学 | Cold-hot compound die molding method for aluminum alloy sheet metal component |
| CN204770230U (en) * | 2015-07-20 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | General mould of hot formed technology |
| KR20170064275A (en) * | 2015-12-01 | 2017-06-09 | 주식회사 성우하이텍 | Device for Multi forming |
| CN205798090U (en) * | 2016-05-31 | 2016-12-14 | 佛山市联智新创科技有限公司 | A kind of steel plate punched shaping mechanism |
| CN106239122A (en) * | 2016-09-26 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of rubber ring installing mechanism of fire-fighting antiexplosion telephone housing |
| CN106734656A (en) * | 2016-12-26 | 2017-05-31 | 东莞市天合机电开发有限公司 | A kind of motor adjusts the semi-automatic laminating mechanism of buffer-type |
| CN206747392U (en) * | 2017-03-02 | 2017-12-15 | 苏州廖若机电科技有限公司 | A kind of stainless steel circular sheet origin shaping mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941324A (en) * | 2018-06-28 | 2018-12-07 | 嘉兴维特拉电气科技有限公司 | A kind of Full-automatic punching machine mold |
| CN109016599A (en) * | 2018-09-26 | 2018-12-18 | 东莞市天合机电开发有限公司 | Stamping mechanism adopting multi-forming-block die with adjustable lower die height |
| CN109016598A (en) * | 2018-09-26 | 2018-12-18 | 东莞市天合机电开发有限公司 | Stamping mechanism adopting multi-forming-block die |
| CN109786173A (en) * | 2019-02-25 | 2019-05-21 | 杭州优朴信息技术有限公司 | A kind of vacuum circuit breaker of band buffering attachment base |
| CN110270653A (en) * | 2019-07-22 | 2019-09-24 | 陈杰 | A kind of Preform Die of reflectal wheel |
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Application publication date: 20180619 |
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| RJ01 | Rejection of invention patent application after publication |