WO2011150857A1 - 一种弧形刀剪床 - Google Patents
一种弧形刀剪床 Download PDFInfo
- Publication number
- WO2011150857A1 WO2011150857A1 PCT/CN2011/075144 CN2011075144W WO2011150857A1 WO 2011150857 A1 WO2011150857 A1 WO 2011150857A1 CN 2011075144 W CN2011075144 W CN 2011075144W WO 2011150857 A1 WO2011150857 A1 WO 2011150857A1
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- WIPO (PCT)
- Prior art keywords
- belt
- cutter
- curved knife
- shearing machine
- machine according
- Prior art date
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- 238000010008 shearing Methods 0.000 title claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000007723 transport mechanism Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 abstract description 31
- 238000009434 installation Methods 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 description 13
- 230000009471 action Effects 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/002—Shearing machines or shearing devices cutting by blades which move parallel to themselves for cutting in more than one direction, e.g. angle cutting
Definitions
- the present invention relates to a curved knife shearing bed, and more particularly to a curved knife shearing machine for automotive steel sheets or metal strips. Background technique
- arc-shaped sheets are usually obtained by unwinding and blanking shearing of steel coils by cross-cutting and blanking dies.
- the specific operation method is to cut the steel coil by transverse shearing, and cut out the sheet material which satisfies the need of blanking of the mold, usually a rectangular plate, and the obtained plate is subjected to blanking production through a blanking die to obtain a circular arc-shaped sheet.
- An arc-shaped knife shearing machine comprising an in-side transmission mechanism (a), a shearing mechanism (b) and an exit-side transmission mechanism (c), wherein the three mechanisms are sequentially mounted on the mounting base plate ( 18)
- the upper side transmission mechanism (a) includes a belt transport mechanism (2) and a roller device (3) on the mounting base plate (18)
- the exit side transport mechanism (c) includes a belt transport mechanism (2) and a roller device (3) on the mounting plate (18)
- the shearing mechanism (b) comprising an upper arc cutter (14) mounted on the upper tool mounting bracket (24), mounted under Lower arc tool (13) on the tool mounting bracket (11).
- the shearing mechanism (b) further includes a manual tool gap adjusting device (8), the manual tool gap adjusting device (8) including an inner wedge block, a connecting rod and a manual tool adjusting handle, the inner wedge block and the Upper arc tool (14) Connected, the manual tool adjustment handle is coupled to the connecting rod and the position of the inner wedge block is adjusted by the connecting rod.
- a manual tool gap adjusting device (8) including an inner wedge block, a connecting rod and a manual tool adjusting handle, the inner wedge block and the Upper arc tool (14) Connected, the manual tool adjustment handle is coupled to the connecting rod and the position of the inner wedge block is adjusted by the connecting rod.
- the in-side transmission mechanism (a) is further provided with an in-side belt electromagnet (17) and a jack-up cylinder (16), and the jack-up cylinder (16) is fixed on the mounting base plate (18). And located below the belt transport mechanism (2), when the jacking cylinder (16) is not jacked up, the belt transport mechanism (2) is slightly lower in the horizontal direction than the roller device (3) On the flat surface.
- exit side transport mechanism (C) further includes an exit side belt electromagnet (20), and the belt transport mechanism (2) at the exit side transport mechanism (c) is directly mounted on the mounting base plate (18) And at the same level as the roller device (3) at the exit side transmission mechanism (c).
- the belt transmission mechanism (2) is provided with a motor (1), a belt (19) and a head wheel (9), and the head wheel (9) is disposed at two ends of the curved knife shearing machine.
- the motor (1) drives the head wheel (9) through a timing belt to operate the belt (19).
- the belt (19) is elastically adjusted by a belt tensioning mechanism (10).
- the shearing mechanism further comprises a pressing device (15), the pressing device (15) comprising a pressure plate (23), a spring (22) and a bolt (21), the bolt (21)
- the pressing device comprising a pressure plate (23), a spring (22) and a bolt (21)
- the bolt The lower end is welded to the pressure plate (23), the spring (22) is sleeved on the bolt (21), and the spring (22) and the upper tool mounting bracket (24) are preloaded.
- the upper end of the bolt (21) is fixed by a nut.
- a cushion (26) is provided on the top of the upper cutter mounting bracket (24).
- the mounting base plate (18) is provided with at least four “T” shaped slots, and the mounting base plate (18) is fixed to the press table by a "T" type bolt.
- the beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: by setting the cutter into an arc shape, the steel coil is subjected to the unwinding and blanking shearing operation by the curved knife shearing bed, because the curved knife shearing bed has a simple structure and convenient operation.
- you only need to change the tools which saves the cost of obtaining curved sheets.
- the curved tools can adjust the arc according to the needs, which can reduce the waste of steel and improve the steel. Utilization rate.
- the pressing plate of the upper circular arc cutter is firstly contacted with the lower circular cutter plane by the preloading force generated by the set spring. The sheet is pressed, which makes the cutting process of the upper arc cutter and the lower arc cutter smoother.
- FIG. 1 is a schematic structural view of a curved knife shearing machine according to an embodiment of the present invention
- FIG. 2 is a schematic view showing the structure of the structure shown in FIG. 1 in the A-A direction;
- Figure 3 is a schematic view showing the structure of the structure shown in Figure 1 in the B-B direction;
- Figure 4 is a partial schematic view of the upper half of the shearing mechanism
- FIG. 5 is a schematic structural view of a curved sheet material processed by using a cross shear and a mold blanking shearing work in the prior art
- FIG. 6 is a parallel view of two sides processed by the curved knife shearing machine provided by the embodiment of the present invention
- FIG. 1 is a schematic structural view of a curved knife shearing machine according to an embodiment of the present invention
- FIG. 2 is a schematic view of the A-A direction structure of the structure shown in FIG. 1
- FIG. 3 is a schematic structural view of the structure shown in FIG.
- the embodiment of the present invention provides a curved knife shearing bed.
- the curved knife shearing machine comprises three mechanisms of an in-side transmission mechanism a, a shearing mechanism b and an exit-side transmission mechanism c. The three mechanisms are sequentially mounted on the mounting base plate 18, ⁇ , and the shearing mechanism b is located at an intermediate position between the entry side transport mechanism a and the exit side transport mechanism b.
- the in-side transmission mechanism a includes a belt transport mechanism 2 and a roller device 3 on the mounting base 18, and the exit-side transport mechanism c includes a belt transport mechanism 2 and a roller device 3 on the mounting base 18, and the shear mechanism b includes a mounting mechanism An upper circular cutter 14 on the cutter mounting bracket 6 and a lower circular cutter 13 mounted on the lower cutter mounting bracket 11.
- the curved knife shearing machine provided by the embodiment of the invention opens the steel coil by using a curved knife shearing machine by setting the cutter into an arc shape Roll blank cutting operation, because the curved knife shearing bed has a simple structure and convenient operation, it only needs to replace the cutting tool when cutting different curved sheets, which saves the cost of obtaining the curved sheet material;
- the arc is adjusted as needed, which reduces the waste of steel and improves the utilization of steel.
- a damper 4 is provided at both ends of the upper cutter mounting bracket 6 and at both ends of the lower cutter mounting bracket 11.
- the upper circular arc cutter 14 and the lower circular arc cutter 13 of the curved knife shearing bed are integrally formed by a damper 4 disposed at both ends of the upper cutter mounting bracket 6 and the lower cutter mounting bracket 11.
- the damper 4 also provides the reaction force of the downward process of the upper circular cutter 14 to make the downward process of the upper circular cutter 14 more stable and reliable.
- the shearing mechanism b also includes a manual tool gap adjusting device 8, and the manual tool gap adjusting device 8 includes an inner wedge block, a connecting rod and a manual tool adjusting handle.
- the inner wedge block is connected to the upper circular arc cutter 14, the manual cutter adjustment handle is connected with the connecting rod, and the position of the inner wedge block is adjusted by the connecting rod, and the upper arc is changed by changing the position of the inner wedge block
- the position of the tool 14 changes the gap between the upper circular tool 14 and the lower circular tool 13.
- the curved knife shearing machine can be used to cut the sheets of different thicknesses by the manual tool gap adjusting device 8, which increases the versatility of the device.
- the shearing mechanism b further includes a pressing device 15.
- the pressing device 15 includes a pressure plate 23, a spring 22 and a bolt 21.
- the lower end of the bolt 21 is welded to the pressure plate 23, and the spring 22 is sleeved on the bolt 21.
- the upper end of the bolt 21 is fixed to the tool mounting bracket 6 by a nut, and the pressure plate 23 is pressed.
- the position and the preload of the spring 22 can be adjusted by the nut at the upper end of the bolt 21.
- the in-side transmission mechanism a is also provided with an in-side belt electromagnet 17 and a jack-up cylinder 16.
- the jacking cylinder 16 is fixed to the mounting base plate 18 and is located below the belt conveying mechanism 2, gp, and the belt conveying mechanism 2 is fixed to the jacking cylinder 16 of the mounting base plate 18.
- the position of the belt transport mechanism 2 in the horizontal direction is slightly lower than the upper flat surface of the roller device 3.
- the exit side transport mechanism c further includes an exit side belt electromagnet 20, and the belt transport mechanism 2 at the exit side transport mechanism c is directly mounted on the mounting base plate 18 and at the same level as the roller unit 3 at the exit side transport mechanism c.
- a signal is sent to electrify the side belt electromagnet 20, and the sheet material is adsorbed on the belt 19 to prevent the sheet material from being lifted during the shearing process, which affects the reliability of the shearing;
- a signal is sent to de-energize the side belt electromagnet 20 for the next sheet material to be transported.
- the belt transport mechanism 2 is provided with a motor 1, a belt 19 and a head wheel 9, which are provided at both ends of the curved knife shearing bed, and the motor 1 drives the head wheel 9 to operate the belt 19 through a timing belt.
- the belt 19 is elastically adjusted by the belt tensioning mechanism 10.
- the belt tensioning mechanism 10 employs a belt tensioning pulley.
- the top of the upper tool mounting bracket 6 is provided with a cushion 5, and when working, the downward force of the press slider acts on the cushion
- the pressing plate 23 on the upper circular cutter 14 is first brought into contact with the plane of the lower circular cutter 13 by the preload force generated by the spring 22, and the sheet is pressed.
- the shearing process of the upper circular cutter 14 and the lower circular cutter 13 is made smoother.
- Both ends of the upper circular cutter 14 and both ends of the lower circular cutter 13 are provided with a damper 4, which mainly functions to connect the upper circular cutter 14 and the lower circular cutter 13 into one unit; the damper 4 also provides an upper circle
- the reaction force of the downward process of the arc cutter 14 makes the process of descending the upper circular cutter 14 more stable and reliable; since the return force of the upper circular cutter 14 is provided by the spring 22, the damper 4 is balanced during the return stroke of the upper circular cutter 14 The spring force rapidly attenuates the vibration of the upper circular cutter 14 and quickly becomes stationary, thereby facilitating the next shearing action.
- the curved knife shearing bed provided by the embodiment of the invention has a convenient curved blade cutting function, and the curved knife cutting comprises: an upper circular cutting tool 14, an upper cutter mounting bracket 6, a pressing plate 23, a lower circular cutting tool 13 And the lower tool mounting bracket 11 and the like, the above-mentioned components are a unified whole, and are fixed and fixed by the positioning pin 12, and the curved cutter can be replaced with different curved cutters according to actual production requirements, thereby satisfying the versatility of the device.
- the mounting base plate 18 is provided with four “T”-shaped slots, and the mounting base plate 18 is fixed to the press table by a "T" type bolt 21.
- Action 1 The motor 1 in the belt transmission mechanism 2 on the entry side drives the belt 19 through the timing belt drive 9 to drive the coil or strip into the curved knife shearing machine;
- Action 2 The downward force of the press slider of the external device acts on the shearing cushion 5, forcing the upper circular arc tool 14 in the active state to move downward, acting on the lower arc cutter 13 in a fixed state, realizing the sheet material
- the shearing action
- Action 3 The motor 1 in the belt conveying mechanism 2 on the exit side drives the belt 19 through the timing belt driving head wheel 9, and outputs the sheared sheet material from the curved knife shearing machine.
- the normal production stage of the coil material After the coil material is fed into the curved knife shearing machine by the special feeder, it is completed by the action 2 and the action 3; the winding material is finished at the production stage: when the coil unwinding is finished, the special feeder cannot end the tail The material is fed into the curved knife shearing machine.
- the tailing signal is sent out, the cylinder 16 is jacked up and the belt conveying mechanism 2 is lifted, and the electromagnet is energized to form the sheet material.
- Adsorbed on the belt 19 (no tension at the end of the coil, the coil is easy to run off, When the sheet material is thin, it is easy to produce relative motion, so it is necessary to increase the friction by the electromagnet.
- the tail material is sent to the curved knife shearing machine by action 1, and then the action 2 and the action 3 are completed together, that is, the sheet material can be realized. Curved cut function.
- FIG. 5 is a schematic structural view of a curved sheet material processed by using a cross shear and a mold blanking shearing operation in the prior art. Due to the demand of the automobile parts, the top and bottom edges of the automobile engine are curved. Sheet material, if sheared by cross shear, there is a waste of a large amount of sheet material, that is, the shaded portion in Fig. 5 is a waste portion.
- Fig. 6 is a schematic view showing the structure of two parallel curved sheets processed by the curved knife shearing machine of the present invention.
- the surface cover of the engine top cover is produced by a curved knife shearing machine, and the steel utilization rate can be increased by about 8%.
- the cost of stamping parts is roughly composed of material cost, labor cost, and other costs.
- the cost of materials accounts for about 70% of stamping parts. It can be seen that improving material utilization is an effective way to reduce costs, and is an important indicator to measure enterprise technology, management level and enterprise process level.
- the cost of the mold for producing the engine cover on the market is about 500,000 yuan per pair, and the price of the curved knife shearing bed body is equivalent to one set of molds, and the different pieces can be replaced by corresponding tools.
- the price of each tool is 8 ⁇ 150,000 yuan, which can greatly save production costs.
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Description
说 明 书 一种弧形刀剪床
技术领域
本发明涉及一种弧形刀剪床, 尤其是涉及一种用于汽车钢板或金属带材的弧形刀剪床。 背景技术
汽车行业中, 需要对表面覆盖件所用钢卷进行开卷落料剪切作业。
受汽车零部件的限制, 汽车表面覆盖件常常需要弧形的板料。 目前, 通常通过横剪及 落料模具对钢卷进行开卷落料剪切作业来获得弧形板料。 具体操作方法为, 用横剪剪切钢 卷, 剪切出满足模具落料需要的板材, 通常为长方形板材, 得到的板材经落料模具进行落 料生产来获得圆弧形的板料。
在实现本发明的过程中, 发明人发现现有技术中至少存在以下缺陷:
由于落料模具结构复杂, 模具成本较高, 并且生产不同弧度的弧形料板时需要更换不 同的模具, 造成该种落料剪切作业的方式成本较高, 并且用横剪剪切的长方形板材经落料 模具加工后, 需裁掉很多边角才能形成弧形板材, 钢材的废弃率很高, 因此, 钢材的利用 率相对较低, 给生产带来很大的浪费。 发明内容
为了解决现有技术中存在的问题, 本发明实施例提供了一种弧形刀剪床。 所述技术方 案如下:
一种弧形刀剪床, 所述弧形刀剪床包括入侧传输机构 (a)、 剪切机构 (b ) 和出侧传输 机构 (c), 所述三个机构依次安装在安装底板 (18 ) 上, 所述入侧传输机构 (a) 包括位于 所述安装底板 (18 ) 上的皮带传输机构 (2 ) 和滚轮装置 (3), 所述出侧传输机构(c)包括 位于所述安装底板 (18 ) 上的皮带传输机构 (2 ) 和滚轮装置 (3), 所述剪切机构 (b)包括 安装在上刀具安装支架 (24) 上的上圆弧刀具 (14), 安装在下刀具安装支架 (11 ) 上的下 圆弧刀具 (13)。
进一步地, 所述上圆弧刀具 (14) 和所述下圆弧刀具 (13 ) 的两端均设有阻尼器 4。 所述剪切机构 (b)还包括手动刀具间隙调节装置 (8), 所述手动刀具间隙调节装置 (8 ) 包括内部楔形块、 连接杆及手动刀具调整手柄, 所述内部楔形块与所述上圆弧刀具 (14)
连接, 所述手动刀具调整手柄与所述连接杆连接, 并通过所述连接杆调节所述内部楔形块 的位置。
进一步地, 所述入侧传输机构 (a) 还设有入侧皮带电磁铁 (17) 和顶起气缸 (16), 所述顶起气缸(16) 固定在所述安装底板(18)上, 且位于所述皮带传输机构 (2) 的下方, 在所述顶起气缸 (16) 未顶起时, 所述皮带传输机构 (2) 在水平方向的位置略低于所述滚 轮装置 (3) 的上平表面。
进一步地, 所述出侧传输机构 (C)还包括出侧皮带电磁铁(20), 所述出侧传输机构(c) 处的皮带传输机构 (2) 直接安装在所述安装底板 (18) 上, 且与所述出侧传输机构 (c) 处的滚轮装置 (3) 位于同一水平面。
具体地, 所述皮带传输机构(2)设有电机(1)、 皮带(19)和头轮(9), 所述头轮(9) 设在所述弧形刀剪床的两端, 所述电机(1)通过同步带带动所述头轮(9)使所述皮带(19) 运转。
所述皮带 (19) 通过皮带张紧机构 (10) 进行松紧调节。
进一步地, 所述剪切机构还包括一个压料装置 (15), 所述压料装置 (15) 包括压料板 (23)、 弹簧 (22) 和螺栓 (21), 所述螺栓 (21) 的下端与所述压料板 (23) 焊接, 所述 弹簧 (22) 套在所述螺栓 (21) 上, 所述弹簧 (22) 与所述上刀具安装支架 (24) 产生预 紧力后, 所述螺栓 (21) 上端用螺母固定。
进一步地, 所述上刀具安装支架 (24) 的顶部设有缓冲垫 (26)。
所述安装底板 (18) 上设有至少四个 "T"型槽, 并通过 "T"型螺栓将所述安装底板 (18) 固定在压力机工作台上。
本发明实施例提供的技术方案的有益效果是: 通过将刀具设置成弧形, 用弧形刀剪床 对钢卷进行开卷落料剪切作业, 由于弧形刀剪床结构简单, 操作方便, 剪切不同弧形板料 时只需更换一下刀具即可, 节省了获取弧形板料的成本; 同时弧形刀具可以根据需要调整 弧度, 剪切时可以减少对钢材的浪费, 提高了钢材的利用率。
具有上述特殊结构的一种弧形刀剪床还具有以下优点:
1、 该种弧形刀剪床在上圆弧刀具、 下圆弧刀具闭合之前, 上圆弧刀具上的压料板通过 设置的弹簧产生的预紧力先与下圆弧刀具平面接触, 将板料压住, 使得上圆弧刀具和下圆 弧刀具的剪切过程更平稳。
2、 该种弧形刀剪床上圆弧刀具、 下圆弧刀具两端设有的阻尼器在保证将上圆弧刀具与 下圆弧刀具连接成一个整体的同时, 还提供上圆弧刀具下行过程的反力, 使得上圆弧刀具 下行过程更加平稳、 可靠。
3、 该种弧形刀剪床通过设有的手动刀具间隙调节装置, 可以满足不同厚度的板料的剪 切, 增加了装置的通用性。 附图说明
图 1为本发明实施例提供的弧形刀剪床的结构示意图;
图 2为图 1所示结构的 A-A方向结构示意图;
图 3为图 1所示结构的 B-B方向结构示意图;
图 4为剪切机构上半部局部示意图;
图 5为现有技术中使用横剪及模具落料剪切作业加工出的弧形板料的结构示意图情况; 图 6 为采用本发明实施例提供的弧形刀剪床加工出的两边平行的弧形板料的结构示意 图情况。
其巾:
a、 入侧传输机构, b、 剪切机构, c、 出侧传输机构;
I、 电机, 2、 皮带传输机构, 3、 滚轮装置, 4、 阻尼器, 5、 缓冲垫, 6、 上刀具安装支架, 7、 板料与下刀具支架处平面, 8、 手动刀具间歇调节装置, 9、 头轮, 10、 皮带张紧机构,
I I、 下刀具安装支架, 12、 定位销, 13、 下圆弧刀具, 14、 上圆弧刀具, 15、 压料装置, 16、 顶起气缸, 17、 入侧皮带电磁铁, 18、 安装底板, 19、 皮带, 20、 出侧皮带电磁铁, 21、 螺栓, 22、 弹簧, 23、 压料板。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明实施方式作 进一步地详细描述。
图 1为本发明实施例提供的弧形刀剪床的结构示意图, 图 2为图 1所示结构的 A-A方 向结构示意图, 图 3为图 1所示结构的 B-B方向结构示意图。 本发明实施例提供了一种弧 形刀剪床, 由图 1-3结合可知, 该种弧形刀剪床包括入侧传输机构 a、 剪切机构 b和出侧传 输机构 c三个机构, 三个机构依次安装在安装底板 18上, δΡ, 剪切机构 b位于入侧传输机 构 a和出侧传输机构 b的中间位置。 入侧传输机构 a包括位于安装底板 18上的皮带传输机 构 2和滚轮装置 3, 出侧传输机构 c包括位于安装底板 18上的皮带传输机构 2和滚轮装置 3, 剪切机构 b包括安装在上刀具安装支架 6上的上圆弧刀具 14, 以及安装在下刀具安装支 架 11上的下圆弧刀具 13。
本发明实施例提供的弧形刀剪床通过将刀具设置成弧形, 用弧形刀剪床对钢卷进行开
卷落料剪切作业, 由于弧形刀剪床结构简单, 操作方便, 剪切不同弧形板料时只需更换一 下刀具即可, 节省了获取弧形板料的成本; 同时弧形刀具可以根据需要调整弧度, 剪切时 可以减少对钢材的浪费, 提高了钢材的利用率。
上刀具安装支架 6的两端及下刀具安装支架 11的两端均设有阻尼器 4。 该种弧形刀剪 床的上圆弧刀具 14和下圆弧刀具 13通过设置在上刀具安装支架 6和下刀具安装支架 11两 端的阻尼器 4组成一个整体。 阻尼器 4还提供上圆弧刀具 14下行过程的反力, 使得上圆弧 刀具 14下行过程更加平稳、 可靠。
剪切机构 b还包括手动刀具间隙调节装置 8,手动刀具间隙调节装置 8包括内部楔形块、 连接杆及手动刀具调整手柄。 所述内部楔形块与上圆弧刀具 14连接, 所述手动刀具调整手 柄与连接杆连接, 并通过所述连接杆调节内部楔形块的位置, 通过改变所述内部楔形块的 位置改变上圆弧刀具 14的位置, 从而改变上圆弧刀具 14与下圆弧刀具 13的间隙。
该种弧形刀剪床通过设有的手动刀具间隙调节装置 8, 可以满足不同厚度的板料的剪 切, 增加了装置的通用性。
图 4为剪切机构上半部局部示意图, 参见图 4, 剪切机构 b还包括一个压料装置 15, 压料装置 15包括压料板 23、 弹簧 22和螺栓 21。 螺栓 21的下端与压料板 23焊接, 弹簧 22 套在螺栓 21上, 弹簧 22与上刀具安装支架 6产生预紧力后, 螺栓 21上端用螺母固定在刀 具安装支架 6上, 压料板 23的位置及弹簧 22的预紧力可通过螺栓 21上端的螺母调节。 该 种弧形刀剪床当上圆弧刀具 14下行时, 压料板 23先于上圆弧刀具 14接触板料, 将板料与 下刀具支架处平面 7压紧, 使得上圆弧刀具 14和下圆弧刀具 13的剪切过程更平稳。
入侧传输机构 a还设有入侧皮带电磁铁 17和顶起气缸 16。 顶起气缸 16固定在安装底 板 18上, 且位于皮带传输机构 2的下方, gp, 皮带传输机构 2被固定在安装底板 18的顶 起气缸 16上。 在顶起气缸 16未顶起时, 皮带传输机构 2在水平方向的位置略低于滚轮装 置 3的上平表面。
当卷料开卷快结束时, 剩余尾料无法送至剪切机构 b, 发出料尾信号, 此时顶起气缸 16顶起皮带传输机构 2, 使皮带传输机构 2与滚轮装置 3处于同一平面上, 同时入侧皮带 电磁铁 17得电, 将尾料吸附于皮带 19上平稳的送至剪切机构 b进行剪切操作。 出侧传输 机构 c还包括出侧皮带电磁铁 20, 出侧传输机构 c处的皮带传输机构 2直接安装在安装底 板 18上, 且与出侧传输机构 c处的滚轮装置 3位于同一水平面。
板料剪切动作开始时发出信号使出侧皮带电磁铁 20得电, 将板料吸附于皮带 19上, 防止板料在剪切过程中出现翘起的情况, 影响剪切的可靠性; 板料剪切动作结束时发出信 号使出侧皮带电磁铁 20失电, 便于下一张板料传输。
皮带传输机构 2设有电机 1、 皮带 19和头轮 9, 头轮 9设在所述弧形刀剪床的两端, 电机 1通过同步带带动所述头轮 9使所述皮带 19运转。
皮带 19通过皮带张紧机构 10进行松紧调节, 本发明实施例中皮带张紧机构 10采用的 是皮带张紧轮。
上刀具安装支架 6的顶部设有缓冲垫 5, 工作时, 压力机滑块的下行动力作用于缓冲垫
5上, 通过缓冲垫 5进行缓冲, 使得上圆弧刀具 14与下圆弧刀具 13平稳闭合, 实现板料的 剪切过程。 在上圆弧刀具 14和下圆滑刀具 13闭合之前, 上圆弧刀具 14上的压料板 23通 过弹簧 22产生的预紧力先与下圆弧刀具 13的平面接触, 将板料压住, 使得上圆弧刀具 14 和下圆滑刀具 13的剪切过程更平稳。 上圆弧刀具 14的两端和下圆滑刀具 13的两端均设有 阻尼器 4, 其主要作用为将上圆弧刀具 14和下圆滑刀具 13连接成一个整体; 阻尼器 4还提 供上圆弧刀具 14下行过程的反力, 使得上圆弧刀具 14下行的过程更加平稳、 可靠; 由于 上圆弧刀具 14的回程力由弹簧 22提供,阻尼器 4在上圆弧刀具 14回程过程中平衡弹簧力, 使上圆弧刀具 14的振动快速衰减, 很快趋于静止, 从而便于下次剪切动作的进行。 本发明 实施例提供的弧形刀剪床具有方便的弧形刀剪更换功能, 其弧形刀剪包括: 上圆弧刀具 14、 上刀具安装支架 6、 压料板 23、 下圆弧刀具 13及下刀具安装支架 11等, 上述各部件为一 个统一整体, 通过定位销 12定位固定, 弧形刀剪可根据实际生产需要更换成不同的弧形刀 剪, 满足该装置的通用性。
安装底板 18上设有四个 "T"型槽, 并通过 "T"型螺栓 21将安装底板 18固定在压力 机工作台上。
本发明的弧形刀剪床的动作描述可概括为:
动作 1 : 入侧的皮带传输机构 2中的电机 1通过同步带驱动头轮 9带动皮带 19运转, 将卷料或带材送入弧形刀剪床;
动作 2: 通过外部设备压力机滑块的下行动力作用于剪切缓冲垫 5上, 迫使活动状态的 上圆弧刀具 14向下运动, 作用于固定状态的下圆弧刀具 13上, 实现板料的剪切动作; 动作 3: 出侧的皮带传输机构 2中的电机 1通过同步带驱动头轮 9带动皮带 19运转, 将剪切后的板料从弧形刀剪床中输出。
卷料开卷全过程分为卷料正常生产阶段和卷料收尾生产阶段:
卷料正常生产阶段: 卷料由专用送料机送入弧形刀剪床后, 由动作 2、 动作 3来完成; 卷料收尾生产阶段: 当卷料开卷快结束时, 专用送料机不能将尾部料送入弧形刀剪床, 为了能最大限度地节约卷料, 当卷料开卷快结束时, 发出尾料信号, 顶起气缸 16顶起皮带 传输机构 2, 同时电磁铁得电将板料吸附于皮带 19上 (卷料尾部无拉力, 卷料容易跑偏,
且板料较薄时易产生相对运动, 故需通过电磁铁增大摩擦), 由动作 1将尾料送至弧形刀剪 床, 再由动作 2、 动作 3共同完成, 即能够实现板料弧形剪切功能。
图 5为现有技术中使用横剪及模具落料剪切作业加工出的弧形板料的结构示意图情况, 由于汽车零部件的需求, 汽车发动机顶盖板料为上下底边皆为弧形板料, 若以横剪剪切, 存在大量板料的浪费, 即图 5中的阴影部分即为浪费的部分。
图 6为采用本发明弧形刀剪床加工出的两边平行的弧形板料的结构示意图情况。
类似发动机顶盖的表面覆盖件采用弧形刀剪床生产, 钢材利用率可提高为 8%左右。 有 资料表明, 冲压件成本大致由材料成本、 劳动力成本、 其它成本构成, 材料成本约占冲压 件的 70%左右。 由此可见, 提高材料利用是减少成本的有效途径, 是衡量企业技术、 管理水 平和企业工艺水平的重要指标。
若以模具落料, 目前市场上生产发动机盖的件的模具成本约为每副 50万元, 而弧形刀 剪床本体的价格与 1套模具相当, 生产不同的件可更换相应的刀具, 每副刀具价格为 8〜15 万元, 可大大节省了生产成本。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的精神和原则 之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
Claims
1.一种弧形刀剪床, 其特征在于: 所述弧形刀剪床包括入侧传输机构 (a)、 剪切机构 (b)和 出侧传输机构 (c), 所述三个机构依次安装在安装底板(18) 上, 所述入侧传输机构 (a)包 括位于所述安装底板 (18) 上的皮带传输机构 (2) 和滚轮装置 (3), 所述出侧传输机构(c) 包括位于所述安装底板 (18) 上的皮带传输机构 (2) 和滚轮装置 (3), 所述剪切机构 (b)包 括安装在上刀具安装支架 (24)上的上圆弧刀具 (14), 安装在下刀具安装支架 (11)上的下 圆弧刀具 (13)。
2. 根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述上圆弧刀具 (14)和所述下圆 弧刀具 (13) 的两端均设有阻尼器 4。
3.根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述剪切机构 (b)还包括手动刀具间 隙调节装置(8), 所述手动刀具间隙调节装置(8)包括内部楔形块、 连接杆及手动刀具调整 手柄, 所述内部楔形块与所述上圆弧刀具 (14) 连接, 所述手动刀具调整手柄与所述连接杆 连接, 并通过所述连接杆调节所述内部楔形块的位置。
4.根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述入侧传输机构 (a)还设有入侧 皮带电磁铁 (17)和顶起气缸 (16), 所述顶起气缸 (16) 固定在所述安装底板 (18) 上, 且 位于所述皮带传输机构(2)的下方, 在所述顶起气缸(16)未顶起时,所述皮带传输机构(2) 在水平方向的位置略低于所述滚轮装置 (3) 的上平表面。
5.根据权利要求 3所述的一种弧形刀剪床, 其特征在于: 所述出侧传输机构 (C)还包括出侧皮 带电磁铁(20),所述出侧传输机构(c)处的皮带传输机构(2)直接安装在所述安装底板(18) 上, 且与所述出侧传输机构 (c) 处的滚轮装置 (3) 位于同一水平面。
6.根据权利要求 1-4任一项权利要求所述的一种弧形刀剪床, 其特征在于: 所述皮带传输机 构 (2) 设有电机 (1)、 皮带 (19)和头轮 (9), 所述头轮 (9) 设在所述弧形刀剪床的两端, 所述电机 (1) 通过同步带带动所述头轮 (9) 使所述皮带 (19) 运转。
7、 根据权利要求 6所述的一种弧形刀剪床, 其特征在于: 所述皮带 (19)通过皮带张紧机构 (10) 进行松紧调节。
8.根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述剪切机构还包括一个压料装置 (15), 所述压料装置 (15) 包括压料板 (23)、 弹簧 (22) 和螺栓 (21), 所述螺栓 (21) 的 下端与所述压料板 (23) 焊接, 所述弹簧 (22) 套在所述螺栓 (21) 上, 所述弹簧 (22) 与 所述上刀具安装支架 (24) 产生预紧力后, 所述螺栓 (21) 上端用螺母固定。
7
9.根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述上刀具安装支架 (24) 的顶部 设有缓冲垫 (26)。
10.根据权利要求 1所述的一种弧形刀剪床, 其特征在于: 所述安装底板(18)上设有至少四 个 "T"型槽, 并通过 "T"型螺栓将所述安装底板 (18) 固定在压力机工作台上。
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| CN109079211B (zh) * | 2018-09-06 | 2023-10-20 | 重庆胜禹新型材料有限公司 | 钢板剪切机 |
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| CN101480736A (zh) * | 2009-01-21 | 2009-07-15 | 河南中原轧辊有限公司 | 一种薄钢板曲线剪刀具 |
| CN101862852A (zh) * | 2010-06-02 | 2010-10-20 | 奇瑞汽车股份有限公司 | 一种弧形刀剪床 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047902A (zh) * | 2018-10-17 | 2018-12-21 | 陈孝 | 一种全自动数控铝材加工系统 |
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| Publication number | Publication date |
|---|---|
| CN101862852A (zh) | 2010-10-20 |
| CN101862852B (zh) | 2011-12-14 |
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