WO2020042041A1 - 在线连续随动冲孔装置 - Google Patents
在线连续随动冲孔装置 Download PDFInfo
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- WO2020042041A1 WO2020042041A1 PCT/CN2018/103097 CN2018103097W WO2020042041A1 WO 2020042041 A1 WO2020042041 A1 WO 2020042041A1 CN 2018103097 W CN2018103097 W CN 2018103097W WO 2020042041 A1 WO2020042041 A1 WO 2020042041A1
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- WIPO (PCT)
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- fixed
- punching device
- ball screw
- servo motor
- roller
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
Definitions
- the invention relates to a workpiece punching device, in particular to an on-line punching device for a special-shaped workpiece.
- the punching of a workpiece is usually carried out by a punching machine, but in an automated production line, the punching machine is relatively independent.
- punching the workpiece stays briefly on the workbench. After the punching is completed, the workpiece can continue to move.
- the disadvantage is that when the workpiece stays briefly, it will affect other processes.
- One is to adopt a buffer mechanism, through the buffer silo, and through the bending deformation of the coil to form a certain amount of storage material. Therefore, during punching, other machinery can continue to work without stopping; another way is to use stepping, that is, during punching, other processes also stop working, wait for the punching to complete, and then move the workpiece.
- the above method will result in more equipment or lower efficiency, which is uneconomical.
- the punch is usually set historically, the workbench is horizontally set, and the workpiece is usually relatively flat, which is easy to place on the workbench for processing.
- the hole is usually processed first, and then the sheet metal processing is performed.
- the disadvantage is that when the hole is processed before the sheet metal processing, the accuracy of the hole is difficult to guarantee.
- the sheet metal processing is performed first, then the punching is performed.
- the object of the present invention is to provide an on-line continuous follow-up punching device, which can realize continuous punching processing without stopping on-line, especially for continuous punching processing of a workpiece after sheet metal processing.
- an on-line continuous follow-up punching device including a fixed table, a mobile table is provided above the fixed table, two guide rails are arranged in parallel on the fixed table, and the mobile table A slider is arranged on the lower side, and the slider is slidably arranged on the guide rail; a servo motor 2 is fixed on a fixed table; the shaft end of the servo motor 2 is fixedly connected to one end of the ball screw; The other end is supported on the screw base, which is fixed on the fixed table; the nut of the ball screw is fixed on the lower side of the moving table, and the axis of the ball screw is arranged parallel to the axis of the guide rail; on the moving table A servo motor 1 is fixed.
- a shaft end of the servo motor 1 is connected to a crankshaft through a transmission mechanism, a connecting rod is connected to the shaft diameter of the crankshaft, and a guide rod is connected to the other end of the connecting rod through a link pin.
- the guide rod cooperates with the guide rod.
- the rod seat and the guide rod seat are fixed on the moving table.
- a punch is connected to the free end of the guide rod.
- a die seat is provided on the front side of the punch.
- a die corresponding to the punch is provided in the die seat.
- the feeding mechanism includes a plurality of flat support rollers and a plurality of vertical nip rollers.
- the follower rollers are respectively located on the left and right sides of the mold base.
- the bottom of the follower roller is connected to the roller base, and a slot is fixed on the moving table.
- the support and the roller support are arranged in the grooves of the grooved support. Springs are arranged between the two ends of the roller support and the grooved support.
- the flat support roller, the vertical nip roller and the follower roller are arranged on the same axis.
- the online continuous punching device is set on the sheet metal automatic processing production line. After the strip is rolled, bent, and hemmed, the sheet metal is clamped on the vertical clamp roller, and the bottom of the sheet is flat The roller is held by the roller.
- the ball screw drives the moving table to move the position synchronously with the workpiece. During the movement, the servo motor drives the punch to punch out the hole. After punching, the mobile table returns to its original position and waits for The next punching process, the punched workpiece enters the next station, further processing, and finally cutting and sorting.
- This device is suitable for online punching, especially for special-shaped sheet metal with clamping edges.
- the punching of the workpiece has high production efficiency and good punching accuracy.
- the vertical nip rollers and idler rollers are spaced apart.
- shock-absorbing seats are respectively provided at two ends of the guide rail.
- a further improvement of the present invention is that a grating for positioning a workpiece is provided on the moving table. Detect the edges, edges, holes, etc. of the workpiece through the grating, and use this to calculate the position of the servo motor when punching, thereby accurately controlling the punching position.
- the moving table is provided with a lubrication mechanism for lubricating the ball screw and the guide rail.
- a discharge guide is provided on the mobile workbench, and a plurality of rollers are arranged on the discharge guide.
- the roller can reduce the wear of the workpiece and facilitate the pulling and discharging of the processing equipment in the next step.
- the back of the die base is provided with reinforcing ribs.
- a blanking hole is provided on the mobile workbench on the back side of the die.
- FIG. 1 is a schematic structural diagram of the present invention.
- FIG. 2 is a partially enlarged view of A in FIG. 1.
- FIG. 3 is a schematic structural diagram of a follower roller when clamping a workpiece.
- 1 damping seat 1 damping seat, 2 guide rails, 3 lead screw seats, 4 ball screw, 5 servo motors, 1, 6 transmission mechanism, 7 crankshaft, 8 connecting rods, 9 connecting rod pins, 10 guide rods, 11 guide rod seats, 12 servo motors 2, 13 discharge guides, 14 rollers, 15 fixed tables, 16 lubrication mechanisms, 17 mobile tables, 18 sliders, 19 gratings, 20 flat rollers, 21 vertical nip rollers, 22 follower rollers, 23 die holders, 24 die holders, 25 scrap blanking holes, 26 stiffeners, 27 punches, 28 workpieces, 29 roller seats, 30 springs, 31 slotted bearings.
- FIG. 1-3 it is an online continuous follow-up punching device, which includes a fixed table 15, a mobile table 17 is provided above the fixed table 15, and the fixed table 15 and the mobile table 17 are horizontally arranged.
- Two fixed guide rails 2 are arranged in parallel on the fixed workbench 15.
- a slider 18 is provided on the lower side of the movable worktable 17. The slider 18 is slidably provided on the guide rail 2; a fixed motor 15 is fixed on the fixed worktable 15.
- the shaft end of the motor two 12 is fixedly connected to one end of the ball screw 4, the other end of the ball screw is supported on the screw base 3, and the screw base 3 is fixed on the fixed table 15; the nut of the ball screw 4 is fixed on On the lower side of the moving table 17, the axis of the ball screw 4 is arranged parallel to the axis of the guide rail 2.
- the moving table 17 is fixed with a servo motor 5 and a shaft end of the servo motor 5 is connected to a crankshaft 7 through a transmission mechanism 6,
- a connecting rod 8 is connected to the shaft diameter of the crankshaft 7.
- the other end of the connecting rod 8 is connected with a guide rod 10 via a connecting rod pin 9.
- the guide rod 10 fits through the guide rod base 11, and the guide rod base 11 is fixed on the moving table 17.
- a punch 27 is connected, and a die seat 23 is provided on the front side of the punch 27.
- the die holder 23 is provided with a die 24 corresponding to the punch 27, and the punch 27 and the die 24 can be replaced to adapt to the processing of different apertures.
- the mobile table 17 is also provided with a feeding mechanism.
- the feeding mechanism includes several The flat supporting roller 20 and a plurality of vertical nip rollers 21 are respectively provided with follower rollers 22 on the left and right sides of the die base 23.
- the bottom of the follower roller 22 is connected to the roller base 29, and a slotted support is fixed on the mobile workbench 17. 31.
- the roller seat 29 is arranged in the groove of the grooved support 31.
- a spring 30 is provided between the two ends of the roller seat 29 and the grooved support 31. The spring 30 can ensure that the follower roller 22 grips the workpiece 28, and During the hole process, the spring 30 is deformed by force to ensure that the punch 27, the die 24 and the workpiece 28 can be abutted together.
- the flat support roller 20, the vertical nip roller 21 and the follower roller 22 are arranged on the same axis.
- the online continuous punching device is set on the sheet metal automatic processing production line. After the strip is rolled, bent, and hemmed, the sheet metal is clamped on the vertical clamp roller 21, and the bottom passes The flat roller 20 holds it.
- the ball screw 4 drives the moving table 17 to move the position synchronously with the workpiece 28.
- the servo motor 5 drives the punch 27 to punch out the hole. After punching, it moves to work.
- the table 17 returns to the original position and waits for the next punching process.
- the punched workpiece 28 enters the next station for further processing and finally cutting and sorting.
- This device is suitable for online punching, especially for The punching of a special-shaped sheet metal workpiece 28 having a clampable edge, such as the workpiece 28 shown in FIG. 3, has a clampable edge, and the workpiece 28 is punched by the clampable edge.
- the production efficiency is high, Punching accuracy is good.
- the vertical nip rollers 21 and the idler rollers 20 are spaced apart.
- shock absorption seats 1 In order to avoid collision when moving to the extreme position, two ends of the guide rail 2 are respectively provided with shock absorption seats 1.
- a further improvement of the present invention is that a grating 19 for positioning the workpiece 28 is provided on the moving table 17.
- the grating 19 detects the edges, edges, holes, etc. of the workpiece 28, and calculates the position of the servo motor when punching, thereby accurately controlling the punching position.
- the moving table 17 is provided with a lubrication mechanism 16 for lubricating the ball screw 4 and the guide rail 2.
- a discharge guide plate 13 is provided on the moving workbench 17, and a plurality of rollers 14 are arranged on the discharge guide plate 13 at intervals.
- the roller 14 can reduce the wear of the workpiece 28 and facilitate the pulling and discharging of the processing equipment in the next step.
- a reinforcing rib 26 is provided on the back of the die base 23.
- a blanking hole 25 is provided on the mobile workbench 17 on the back side of the die 24.
- the present invention is not limited to the above embodiments.
- those skilled in the art can make some substitutions and replacements for some of the technical features without creative labor according to the disclosed technical content.
- Deformation, these replacements and deformations are all within the protection scope of the present invention.
Abstract
一种在线连续随动冲孔装置，其固定工作台（15）上方经导轨（2）、滑块（18）设置有移动工作台（17），固定工作台（15）上固定有伺服电机二（12），伺服电机二（12）的轴端连接有滚珠丝杠（4），滚珠丝杠（4）的螺母固定在移动工作台（17）下侧，移动工作台（17）上固定有伺服电机一（5），伺服电机一（5）传动连接有曲轴（7），曲轴（7）的轴径上连接有连杆（8），连杆（8）的另一端连接有导杆（10），导杆（10）配合穿过导杆座（11），导杆（10）的自由端连接有冲头（27），冲头（27）前侧设置有模座（23），模座（23）内设有凹模（24）；移动工作台（17）上还设有进料机构。工作时，该装置设置在钣金自动加工生产线上，滚珠丝杠（4）驱动移动工作台（17）随工件（28）同步移动位置，在移动过程中伺服电机一（5）驱动冲头（27）冲裁出孔，该装置适用于异形钣金工件（28）的冲孔，其生产效率高、冲孔精度好。
Description
本发明涉及一种工件冲孔装置，特别涉及异形工件的在线冲孔装置。
现有技术中，工件冲孔通常采用冲床进行冲孔，但是在自动化生产线上，冲床是相对独立的，其冲孔时，工件在工作台上短暂停留，完成冲孔后，工件可继续运动。其不足之处在于：工件短暂停留时，会对其他工序产生影响，其他工序有两种选择，其一是采用缓冲机构，通过缓冲料仓，通过卷板的弯曲变形，形成一定量的储料，从而在冲孔时，其他机械可以不停机而持续工作；还有一种方式，则是采用步进式，即冲孔时，其他工序也停止工作，等待冲孔完成后，再移动工件。上述方式会导致设备增多或效率降低，是不经济的做法。
现有技术中，冲床通常是历史设置的，工作台水平设置，工件通常较为平整，易于放置在工作台上进行加工。对于钣金件，通常是先加工孔，再进行钣金加工，其不足之处在于，先加工孔再进行钣金加工时，孔的精度难以保证，然而，如果先进行钣金加工，再冲孔时，则由于钣金后的工件结构复杂，难以很好夹持，通过普通冲床难以完成加工，尤其是不停机在线加工。
发明内容
本发明的目的是提供一种在线连续随动冲孔装置，使其可以实现在线不停机连续冲孔加工，尤其是针对钣金加工后的工件进行连续冲孔加工。
本发明的目的是这样实现的：一种在线连续随动冲孔装置，包括固定工作台，所述固定工作台上方设置有移动工作台，固定工作台上平行设置有两根导轨，移动工作台下侧设有滑块，所述滑块可滑动地设置在所述导轨上；固定工作台上固定有伺服电机二，伺服电机二的轴端与滚珠丝杠的一端固定连接，滚珠丝杆的另一端支承在丝杠座上，丝杠座固定在固定工作台上；滚珠丝杠的螺母固定在移动工作台下侧，滚珠丝杠的轴线与导轨轴线相平行设置；所述移动工作台上固定有伺服电机一，伺服电机一的轴端经传动机构传动连接有曲轴，曲轴的轴径上连接有连杆，连杆的另一端经连杆销连接有导杆，导杆配合穿过导杆座，导杆座固定在移动工作台上，导杆的自由端连接有冲头，冲头前侧设置有模座，模座内设有与冲头对应的凹模；移动工作台上还设有进料机构，所述进料机构包括若干平托辊和若干立夹辊，位于模座的左右两侧分别设有随动辊，随动辊底部连接在辊座上，移动工作台上固定有带槽支座，辊座设置在带槽支座的槽中，辊座两端与带槽支座之间设有弹簧，平托辊、立夹辊和 随动辊设置在同一轴线上。
工作时，该在线连续随动冲孔装置设置在钣金自动加工生产线上，带材进行辊压、折弯、折边成型后，钣金件夹持在立夹辊上，而其底部通过平托辊托持，需要冲孔时，滚珠丝杠驱动移动工作台随工件同步移动位置，在移动过程中伺服电机一驱动冲头冲裁出孔，冲孔后移动工作台退回原位，等待进行下一冲孔加工，冲孔后的工件进入下一工位，进一步进行其他加工，最后再进行切断、分拣，该装置适用于在线冲孔，尤其适用于具有可夹持边的异形钣金工件的冲孔，其生产效率高、冲孔精度好。
为进一步保证工件稳定，所述立夹辊和平托辊间隔设置。
为避免运动到极限位置时产生碰撞，所述导轨两端分别设有减震座。
本发明的进一步改进在于，所述移动工作台上设有用于定位工件的光栅。通过光栅探测工件的棱、边、孔等，并以此计算出冲孔时，伺服电机应处的位置，从而精确控制冲孔位置。
其进一步改进在于，所述移动工作台上设有用于润滑滚珠丝杠和导轨的润滑机构。
为保证向下一道工序送料顺畅，所述移动工作台上设有出料导板，所述出料导板上间隔设置有若干滚柱。滚柱可以减小工件的磨损，方便下一工序加工设备的牵引出料。
为保证冲孔加工时模座的稳定，所述模座背面设有加强筋。
为进一步方便冲裁出的废料落料，所述移动工作台上位于凹模背面一侧设有废料落料孔。
图1为本发明结构示意图。
图2为图1中A的局部放大图。
图3为随动辊夹持工件时的结构示意图。
其中，1减震座，2导轨，3丝杠座，4滚珠丝杠，5伺服电机一，6传动机构，7曲轴，8连杆，9连杆销，10导杆，11导杆座，12伺服电机二，13出料导板，14滚柱，15固定工作台，16润滑机构，17移动工作台，18滑块，19光栅，20平托辊，21立夹辊，22随动辊，23模座，24凹模，25废料落料孔，26加强筋，27冲头，28工件，29辊座，30弹簧，31带槽支座。
如图1-3所示，为一种在线连续随动冲孔装置，包括固定工作台15，固定工作台15上方设置有移动工作台17，固定工作台15和移动工作台17均水平设置，固定工作台15上 平行设置有两根导轨2，移动工作台17下侧设有滑块18，滑块18可滑动地设置在导轨2上；固定工作台15上固定有伺服电机二12，伺服电机二12的轴端与滚珠丝杠4的一端固定连接，滚珠丝杆的另一端支承在丝杠座3上，丝杠座3固定在固定工作台15上；滚珠丝杠4的螺母固定在移动工作台17下侧，滚珠丝杠4的轴线与导轨2轴线相平行设置；移动工作台17上固定有伺服电机一5，伺服电机一5的轴端经传动机构6传动连接有曲轴7，曲轴7的轴径上连接有连杆8，连杆8的另一端经连杆销9连接有导杆10，导杆10配合穿过导杆座11，导杆座11固定在移动工作台17上，导杆10的自由端连接有冲头27，冲头27前侧设置有模座23，模座23内设有与冲头27对应的凹模24，冲头27和凹模24可以更换，以适应不同孔径的加工；移动工作台17上还设有进料机构，进料机构包括若干平托辊20和若干立夹辊21，位于模座23的左右两侧分别设有随动辊22，随动辊22底部连接在辊座29上，移动工作台17上固定有带槽支座31，辊座29设置在带槽支座31的槽中，辊座29两端与带槽支座31之间设有弹簧30，弹簧30可保证随动辊22夹持住工件28，在冲孔过程中，弹簧30受力变形，保证冲头27、凹模24和工件28能贴靠在一起，平托辊20、立夹辊21和随动辊22设置在同一轴线上。
工作时，该在线连续随动冲孔装置设置在钣金自动加工生产线上，带材进行辊压、折弯、折边成型后，钣金件夹持在立夹辊21上，而其底部通过平托辊20托持，需要冲孔时，滚珠丝杠4驱动移动工作台17随工件28同步移动位置，在移动过程中伺服电机一5驱动冲头27冲裁出孔，冲孔后移动工作台17退回原位，等待进行下一冲孔加工，冲孔后的工件28进入下一工位，进一步进行其他加工，最后再进行切断、分拣，该装置适用于在线冲孔，尤其适用于具有可夹持边的异形钣金工件28的冲孔，例如图3所示的工件28，其具有一个可夹持边，通过可夹持边夹持工件28进行冲孔，其生产效率高、冲孔精度好。
为进一步保证工件28稳定，立夹辊21和平托辊20间隔设置。
为避免运动到极限位置时产生碰撞，导轨2两端分别设有减震座1。
本发明的进一步改进在于，移动工作台17上设有用于定位工件28的光栅19。通过光栅19探测工件28的棱、边、孔等，并以此计算出冲孔时，伺服电机应处的位置，从而精确控制冲孔位置。
其进一步改进在于，移动工作台17上设有用于润滑滚珠丝杠4和导轨2的润滑机构16。
为保证向下一道工序送料顺畅，移动工作台17上设有出料导板13，出料导板13上间隔设置有若干滚柱14。滚柱14可以减小工件28的磨损，方便下一工序加工设备的牵引 出料。
为保证冲孔加工时模座23的稳定，模座23背面设有加强筋26。
为进一步方便冲裁出的废料落料，移动工作台17上位于凹模24背面一侧设有废料落料孔25。
本发明并不局限于上述实施例，在本发明公开的技术方案的基础上，本领域的技术人员根据所公开的技术内容，不需要创造性的劳动就可以对其中的一些技术特征作出一些替换和变形，这些替换和变形均在本发明的保护范围内。
Claims (8)
- 一种在线连续随动冲孔装置，包括固定工作台，其特征在于：所述固定工作台上方设置有移动工作台，固定工作台上平行设置有两根导轨，移动工作台下侧设有滑块，所述滑块可滑动地设置在所述导轨上；固定工作台上固定有伺服电机二，伺服电机二的轴端与滚珠丝杠的一端固定连接，滚珠丝杆的另一端支承在丝杠座上，丝杠座固定在固定工作台上；滚珠丝杠的螺母固定在移动工作台下侧，滚珠丝杠的轴线与导轨轴线相平行设置；所述移动工作台上固定有伺服电机一，伺服电机一的轴端经传动机构传动连接有曲轴，曲轴的轴径上连接有连杆，连杆的另一端经连杆销连接有导杆，导杆配合穿过导杆座，导杆座固定在移动工作台上，导杆的自由端连接有冲头，冲头前侧设置有模座，模座内设有与冲头对应的凹模；移动工作台上还设有进料机构，所述进料机构包括若干平托辊和若干立夹辊，位于模座的左右两侧分别设有随动辊，随动辊底部连接在辊座上，移动工作台上固定有带槽支座，辊座设置在带槽支座的槽中，辊座两端与带槽支座之间设有弹簧，平托辊、立夹辊和随动辊设置在同一轴线上。
- 根据权利要求1所述的在线连续随动冲孔装置，其特征在于：所述立夹辊和平托辊间隔设置。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述导轨两端分别设有减震座。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述移动工作台上设有用于定位工件的光栅。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述移动工作台上设有用于润滑滚珠丝杠和导轨的润滑机构。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述移动工作台上设有出料导板，所述出料导板上间隔设置有若干滚柱。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述模座背面设有加强筋。
- 根据权利要求1或2所述的在线连续随动冲孔装置，其特征在于：所述移动工作台上位于凹模背面一侧设有废料落料孔。
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