CN111618231A - Stepping type plate clamping and positioning device of self-punching riveting machine - Google Patents

Stepping type plate clamping and positioning device of self-punching riveting machine Download PDF

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CN111618231A
CN111618231A CN202010594159.6A CN202010594159A CN111618231A CN 111618231 A CN111618231 A CN 111618231A CN 202010594159 A CN202010594159 A CN 202010594159A CN 111618231 A CN111618231 A CN 111618231A
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clamping
plate
plates
scale
positioning
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黄志超
张永超
张玉宽
骆强
李玲玲
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East China Jiaotong University
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East China Jiaotong University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/38Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/42Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/28Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups

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Abstract

本发明公开了一种自冲铆接机步进式板料夹持定位装置,铆接平台中心位置上设有与自冲铆接机连接的通孔,其特征在于,定位夹持平台安装在铆接平台上,铆接平台上滑动连接的两块夹持板及定位夹持平台至少通过一根双向丝杠连接,两块夹持板与两个不同方向的丝杠部连接,双向丝杠的一端或中部与带感应装置的步进式螺旋机构连接,两块夹持板之间相对双向丝杠轴向形成待接板料宽度方向定位空间;进料方向与双向丝杠轴向垂直,两块夹持板内的定位夹持平台面与铆接平台面之间在进料方向上形成待接板料长度方向定位空间,一待接板料通过铆接平台上的移动定位块定位,另一待接板料通过步进式送板机构进入铆接平台并由其控制两块待接板料的搭接长度。

Figure 202010594159

The invention discloses a step-by-step sheet metal clamping and positioning device for a self-piercing riveting machine. A through hole for connecting with the self-piercing riveting machine is arranged at the center of the riveting platform. It is characterized in that the positioning and clamping platform is installed on the riveting platform. , The two clamping plates and the positioning clamping platform that are slidably connected on the riveting platform are connected by at least one bidirectional lead screw, the two clamping plates are connected with two lead screw parts in different directions, and one end or the middle of the two-way lead screw is connected to The stepping screw mechanism with the induction device is connected, and the two clamping plates form a positioning space in the width direction of the plate to be received relative to the bidirectional screw axis; the feeding direction is perpendicular to the bidirectional screw axis, and the two clamping plates Between the inner positioning and clamping platform surface and the riveting platform surface, a positioning space in the length direction of the plate to be connected is formed in the feeding direction. One plate to be received is positioned by the moving positioning block on the riveting platform, and the other plate to be The advancing plate feeding mechanism enters the riveting platform and controls the lap length of the two pieces to be connected.

Figure 202010594159

Description

一种自冲铆接机步进式板料夹持定位装置A step-by-step sheet metal clamping and positioning device for a self-piercing riveting machine

技术领域technical field

本发明属于机械技术领域,涉及夹持定位装置技术,具体涉及一种用于自冲铆接机的板料夹持定位装置。The invention belongs to the technical field of machinery, relates to a clamping and positioning device technology, and in particular relates to a sheet metal clamping and positioning device for a self-piercing riveting machine.

背景技术Background technique

自冲铆接技术是一种用于连接两种或两种以上金属或复合材料板材的冷连接技术。由于它在连接过程不破坏板材的镀层,接头性能可靠、成本低、无噪音、环境友好等特点,在汽车和航空领域等应用广泛,且技术成熟。Self-piercing riveting technology is a cold joining technology used to join two or more metal or composite material sheets. Because it does not damage the coating of the plate during the connection process, the joint performance is reliable, the cost is low, the noise is free, and it is environmentally friendly. It is widely used in the automotive and aviation fields, and the technology is mature.

常规的自冲铆接机由电机、冲头、压边圈、C型架和凹模组成。工作时通过伺服电机提供动力将铆钉直接压入待铆接板材,待铆接板材在铆钉的压力作用下与铆钉发生塑性变形,成形后充盈于凹模之中,从而形成稳定连接的一种全新的板材连接技术。A conventional self-piercing riveting machine consists of a motor, a punch, a blank holder, a C-frame and a die. When working, the rivet is directly pressed into the plate to be riveted by the power provided by the servo motor. The plate to be riveted is plastically deformed with the rivet under the pressure of the rivet, and then filled into the die after forming, thus forming a brand-new plate with stable connection. connection technology.

现有的自冲铆接机对板料进行铆接时,冲头、铆钉及凹模之间在竖直方向上已经有了精准的定位,能够保证铆钉在向下冲程运动阶段与板料上表面垂直。但是由于铆接机底部的凹模没有任何固定及定位装置,需要提前测量板料的重合尺寸,用记号笔手动给被铆接点的中心做好标记,再将板料放置在凹模的表面进行铆接。When the existing self-piercing riveting machine rives the sheet, the punch, the rivet and the die have been accurately positioned in the vertical direction, which can ensure that the rivet is perpendicular to the upper surface of the sheet during the downward stroke movement stage. . However, since the die at the bottom of the riveting machine does not have any fixing and positioning device, it is necessary to measure the overlap size of the sheet in advance, manually mark the center of the riveted point with a marker, and then place the sheet on the surface of the die for riveting. .

基于此,现有技术中正在不断进步中,如CN201821922374.9 《一种自冲铆接夹具装置》,主夹具体与定位夹紧板配合固定试件下基板,升降螺柱通过螺纹连接与主夹具体的螺纹孔配合,根据不同板材厚度和胶层厚度控制升降板上下移动,升降板凸台与主夹具体凸台滑动配合对升降板移动进行导向,具体移动数值由升降板凸台上刻度线标识,限制挡板控制升降板的自由度,夹紧板凸台与升降板挡板通过过盈配合固定试件上基板,自冲铆接设备通过中心孔即可进行自冲铆接工作。Based on this, the existing technology is making continuous progress, such as CN201821922374.9 "A Self-piercing Riveting Fixture Device", the main clamp body cooperates with the positioning clamping plate to fix the lower base plate of the test piece, and the lifting stud is connected with the main clamp through threaded connection. The specific threaded hole coordination controls the up and down movement of the lifting plate according to the thickness of different plates and the thickness of the adhesive layer. The sliding cooperation between the lifting plate boss and the specific boss of the main clamp guides the movement of the lifting plate. The specific movement value is determined by the scale line on the lifting plate boss. Mark, limit the baffle to control the degree of freedom of the lifting plate, the clamping plate boss and the lifting plate baffle fix the upper substrate of the test piece through interference fit, and the self-piercing riveting equipment can perform self-piercing riveting work through the center hole.

CN201820423020.3 《一种自冲铆接辅助装置》,上支撑板与下支撑板上的挡板可将上下铆接板材位置固定,确定其搭接区域,无须预先标记处理,提高自冲铆接接头的对中精度;可以对厚度不同的板材进行装夹,扩大其使用范围。 CN201820423020.3 "A Self-piercing Riveting Auxiliary Device", the baffles on the upper support plate and the lower support plate can fix the position of the upper and lower riveting plates, determine the overlapping area, do not need to pre-mark processing, improve the alignment of self-piercing riveting joints Medium precision; it can clamp plates with different thicknesses to expand its scope of use.

CN201920798817.6 《一种自冲铆接板材快速定位夹紧辅助装置》, 通过调节升降板可实现不同板厚板材铆接,通过调节螺栓Ⅰ可实现不同板宽板材铆接,压紧装置可实现快速夹紧,拆卸板材方便快捷。 CN201920798817.6 "An auxiliary device for quick positioning and clamping of self-piercing riveted plates", the riveting of plates with different plate thicknesses can be realized by adjusting the lifting plate, the riveting of plates with different plate widths can be realized by adjusting the bolt I, and the pressing device can realize fast clamping , It is convenient and quick to disassemble the board.

综上,自冲铆接机的定位夹持装置的进一步研发,将使铆接的操作技术更规范、定位精度更高。这是行业急需解决的问题,也是进一步拓宽自冲铆接工艺在更广泛领域应用的前提。In summary, the further development of the positioning and clamping device of the self-piercing riveting machine will make the riveting operation technology more standardized and the positioning accuracy higher. This is a problem that the industry needs to solve urgently, and it is also the premise for further expanding the application of self-piercing riveting technology in a wider range of fields.

发明内容SUMMARY OF THE INVENTION

本发明目的在于提出一种用于自冲铆接机的夹持定位装置。The purpose of the present invention is to provide a clamping and positioning device for a self-piercing riveting machine.

本发明解决其技术问题所采用的方案包括:The scheme adopted by the present invention to solve its technical problems includes:

一种自冲铆接机步进式板料夹持定位装置,包括铆接平台、定位夹持平台、夹持板、双向丝杠、步进式螺旋机构和步进式送板机构,铆接平台中心位置上设有与自冲铆接机连接的通孔,定位夹持平台安装在铆接平台上,铆接平台上滑动连接两块夹持板,定位夹持平台及两块夹持板至少通过一根双向丝杠连接,两块夹持板分别与双向丝杠中两个不同方向的丝杠部连接,双向丝杠的一端或中部与步进式螺旋机构连接,步进式螺旋机构中设有感应装置,两块夹持板之间相对双向丝杠轴向即纵向形成待接板料宽度方向定位空间;A step-by-step sheet metal clamping and positioning device for a self-piercing riveting machine includes a riveting platform, a positioning and clamping platform, a clamping plate, a bidirectional screw, a stepping screw mechanism and a stepping plate feeding mechanism. The center position of the riveting platform is There is a through hole connected with the self-piercing riveting machine, the positioning and clamping platform is installed on the riveting platform, and the riveting platform is slidably connected with two clamping plates, and the positioning and clamping platform and the two clamping plates pass through at least one bidirectional wire. The two clamping plates are respectively connected with two different directions of the lead screw parts in the two-way lead screw, and one end or the middle of the two-way lead screw is connected with the stepping screw mechanism. The stepping screw mechanism is provided with an induction device. A positioning space in the width direction of the to-be-received sheet material is formed between the two clamping plates relative to the two-way screw in the axial direction, that is, in the longitudinal direction;

两块待接板料的进料方向即横向与双向丝杠轴向垂直,两块夹持板内的定位夹持平台面与铆接平台面之间在进料方向上形成待接板料长度方向定位空间,一待接板料通过铆接平台上的移动定位块定位,另一待接板料通过步进式送板机构进入铆接平台并由步进式送板机构控制两块待接板料的搭接长度。The feeding direction of the two sheets to be received is the transverse direction and the axial direction of the two-way screw is perpendicular to the direction of the length of the sheet to be received. In the space, one plate to be received is positioned by the moving positioning block on the riveting platform, and the other plate to be received enters the riveting platform through the stepping plate feeding mechanism, and the stepping plate feeding mechanism controls the overlapping of the two plates to be connected. connection length.

进一步,铆接平台包括底板,定位夹持平台包括上下纵向设置的两块导轨板和左右横向设置的两块侧板,底板、导轨板和侧板之间组成方框主体,夹持板为带刻度的夹持刻度板;Further, the riveting platform includes a bottom plate, and the positioning and clamping platform includes two guide rail plates arranged vertically up and down and two side plates arranged horizontally on the left and right sides. the clamping scale plate;

导轨板上边为导轨,下端中部设有凹槽,两凹槽与底板形成待接板料的横向进料槽;方框主体内的底板中心位置上设有与自冲铆接机凹模连接的凹模孔,上下导轨上设有夹持刻度板,夹持刻度板与导轨形成纵向滑动连接,两块侧板和两块夹持刻度板之间至少通过一根双向丝杠连接,双向丝杠的一端与步进式螺旋机构连接;The upper side of the guide rail plate is a guide rail, and the middle part of the lower end is provided with a groove, and the two grooves and the bottom plate form a transverse feeding groove for the plate to be received; the center position of the bottom plate in the frame body is provided with a concave connection with the self-piercing riveting machine. Die holes, there are clamping scale plates on the upper and lower guide rails, and the clamping scale plates form a longitudinal sliding connection with the guide rails. The two side plates and the two clamping scale plates are connected by at least one bidirectional screw. One end is connected with the stepping screw mechanism;

相对于凹模孔的平面横向中心线,夹持刻度板左右对称,夹持刻度板的零刻度与凹模孔的平面纵向中心线对齐,双向丝杠的中间点与凹模孔的平面横向中心线对齐。Relative to the plane transverse centerline of the die hole, the clamping scale plate is left-right symmetrical, the zero scale of the clamping scale plate is aligned with the plane longitudinal centerline of the die hole, and the middle point of the bidirectional screw is aligned with the plane transverse center of the die hole. line alignment.

更进一步,夹持刻度板两端通过滑块与上下导轨纵向滑动连接。Furthermore, both ends of the clamping scale plate are longitudinally slidably connected with the upper and lower guide rails through the slider.

更进一步,底板至少一端纵向上设有滑动槽,夹持刻度板底部设有凸块,凸块与滑动槽滑动连接或让位连接,两块侧板的底部和两块夹持刻度板的凸块之间通过双向丝杠连接。Further, at least one end of the bottom plate is provided with a sliding groove longitudinally, and the bottom of the clamping scale plate is provided with a convex block, and the convex block is slidably connected with the sliding groove or is connected in place. The blocks are connected by a bidirectional screw.

更进一步,两块夹持刻度板相对面上设有刻度线,夹持刻度板的上表面设有刻度尺或刻度值。Furthermore, scale lines are provided on the opposite surfaces of the two clamping scale plates, and scales or scale values are provided on the upper surfaces of the clamping scale plates.

进一步,铆接平台包括定位座,定位夹持平台包括固定支架,夹持板为带刻度的第二夹持刻度板;Further, the riveting platform includes a positioning seat, the positioning and clamping platform includes a fixing bracket, and the clamping plate is a second clamping scale plate with a scale;

定位座为凹型槽结构,槽底板中心部位设有与自冲铆接机凹模连接的凹模孔,定位座的槽底板设有两块第二夹持刻度板并形成纵向滑动连接,固定支架安装在定位座上,两块第二夹持刻度板和固定支架之间至少通过一根第二双向丝杠连接;其中,两块第二夹持刻度板分别与第二双向丝杠中两个不同方向的丝杠部连接;The positioning seat is a concave groove structure. The center of the groove bottom plate is provided with a concave die hole connected with the self-piercing riveting machine. The groove bottom plate of the positioning seat is provided with two second clamping scale plates and forms a longitudinal sliding connection. The fixed bracket is installed On the positioning seat, the two second clamping scale plates and the fixed bracket are connected by at least one second bidirectional lead screw; wherein, the two second clamping scale plates are respectively different from the two of the second bidirectional lead screws. The direction of the screw part connection;

相对于凹模孔的平面横向中心线,第二夹持刻度板左右对称,第二夹持刻度板的零刻度与凹模孔的平面纵向中心线对齐,第二双向丝杠的中间点与凹模孔的平面横向中心线对齐,第二双向丝杠的中间部位为丝杠或光杆。Relative to the plane transverse centerline of the die hole, the second clamping scale plate is left-right symmetrical, the zero scale of the second clamping scale plate is aligned with the plane longitudinal centerline of the die hole, and the middle point of the second bidirectional screw is aligned with the concave hole. The plane transverse centerlines of the die holes are aligned, and the middle part of the second bidirectional lead screw is a lead screw or a polished rod.

更进一步,第二夹持刻度板两端分别通过导轨滑块与定位座的槽底板两端形成纵向滑动连接。Furthermore, the two ends of the second clamping scale plate are respectively connected with the two ends of the groove bottom plate of the positioning seat to form a longitudinal sliding connection through the guide rail slider.

更进一步,导轨滑块下端开槽,槽底板嵌入开槽中形成滑槽连接结构。Further, the lower end of the guide rail slider is slotted, and the slot bottom plate is embedded in the slot to form a chute connection structure.

更进一步,两块第二夹持刻度板的相对面设有加工刻度线,第二夹持刻度板的上端面对应标设有刻度值,两块第二夹持刻度板分别内置有螺母,螺母与第二双向丝杠连接,第二双向丝杠通过与螺母的转动连接使得两块第二夹持刻度板形成相对方向的滑动。Further, the opposite surfaces of the two second clamping scale plates are provided with processing scale lines, the upper end surfaces of the second clamping scale plates are correspondingly marked with scale values, and the two second clamping scale plates are respectively built with nuts. The nut is connected with the second two-way lead screw, and the second two-way lead screw makes the two second clamping scale plates slide in opposite directions through the rotational connection with the nut.

更进一步,固定支架为山字型结构,山字型两边支架端面与定位座两槽边板的端面连接,固定支架中间部位为方板或方框结构,方板或方框结构中安装有深沟球轴承,第二双向丝杠中间部位光杆与深沟球轴承过盈配合,第二双向丝杠中部与步进式螺旋机构连接。Further, the fixing bracket is a mountain-shaped structure, the end faces of the brackets on both sides of the mountain-shaped shape are connected with the end surfaces of the two groove side plates of the positioning seat, the middle part of the fixing bracket is a square plate or a frame structure, and a deep groove is installed in the square plate or frame structure. Groove ball bearing, the middle part of the second two-way lead screw is in interference fit with the deep groove ball bearing, and the middle part of the second two-way lead screw is connected with the stepping screw mechanism.

进一步,进料前,感应装置发出感应信号控制步进式螺旋机构反向转动双向丝杠,夹持板之间张开;Further, before feeding, the induction device sends out an induction signal to control the stepping screw mechanism to reversely rotate the bidirectional screw, and the clamping plates are opened;

上板料和下板料通过移动定位块定位和步进式送板机构进料后,感应装置发出感应信号控制步进式螺旋机构正向转动双向丝杠,夹持板之间夹紧;After the upper sheet and the lower sheet are positioned by the moving positioning block and fed by the stepping plate feeding mechanism, the induction device sends out an induction signal to control the stepping screw mechanism to rotate the bidirectional screw in the forward direction, and the clamping plates are clamped;

感应装置通过感应上板料和下板料的两侧挤压力,当挤压力达到到一定时,感应装置发出感应信号控制步进式螺旋机构停止工作;The induction device senses the extrusion force on both sides of the upper sheet and the lower sheet. When the extrusion force reaches a certain level, the induction device sends an induction signal to control the stepping screw mechanism to stop working;

当上板料和下板料铆接完成后,感应装置发出感应信号控制步进式螺旋机构反向转动双向丝杠,夹持板之间张开。When the riveting of the upper sheet and the lower sheet is completed, the induction device sends out an induction signal to control the stepping screw mechanism to reversely rotate the bidirectional screw, and the clamping plates are opened.

本发明该夹持定位装置属于完全对称结构,刻度板上的零刻度线在待接板料底面宽度方向的垂线经过铆接平台中心,当需要夹持待接板料时,步进式螺旋机构转动双向丝杠以增大两块夹持刻度板之间的距离,待两块夹持刻度板之间的距离略大于待接板料宽度时,依次放入上下两块待接板料,一待接板料通过铆接平台的定位块直接定位,另一待接板料通过步进式送板机构进入铆接平台并控制搭接长度;同时两块夹持刻度板设有刻度线,可以直观验证两待接板料的搭接长度,确定好搭接长度后反向同时转动双向丝杠,当两待接板料快要被夹紧时,再次确认搭接长度,以保证搭接长度的精准,然后继续反向转动双向丝杠直至待接板料完全夹持。The clamping and positioning device of the present invention has a completely symmetrical structure. The zero-scale line on the scale plate is perpendicular to the width direction of the bottom surface of the plate to be connected through the center of the riveting platform. When the plate to be clamped needs to be clamped, the stepping screw mechanism Rotate the two-way screw to increase the distance between the two clamping scale plates. When the distance between the two clamping scale plates is slightly larger than the width of the plate to be received, put in the upper and lower plates in turn. The plate to be received is directly positioned by the positioning block of the riveting platform, and the other plate to be received enters the riveting platform through the step-by-step plate feeding mechanism and controls the lap length; at the same time, the two clamping scale plates are provided with scale lines, which can be visually verified The lap length of the two sheets to be received is determined. After determining the lap length, turn the two-way screw in the opposite direction at the same time. When the two sheets to be received are about to be clamped, confirm the lap length again to ensure the accuracy of the lap length. Then continue to turn the two-way screw in the opposite direction until the plate to be received is completely clamped.

(1)本发明自冲铆接机夹持定位装置方便控制出现待接板料偏移的状况,让自冲铆接操作技术更加规范。(1) The clamping and positioning device of the self-piercing riveting machine of the present invention is convenient to control the deviation of the to-be-connected sheet material, and makes the self-piercing riveting operation technology more standardized.

(2)本发明标有刻度尺,配有导轨装置和步进式送板机构,即自动控制搭接长度,可直观地对待接板料横向搭接尺寸进行测量,夹持刻度板通过导轨、滑块、双向丝杠、步进式螺旋机构之间的运动配合,步进式螺旋机构设有感应装置,可实现对不同宽度的待接板料进行精准定位。(2) The invention is marked with a scale, equipped with a guide rail device and a step-by-step plate feeding mechanism, that is, the lap length is automatically controlled, and the horizontal lap size of the plate to be connected can be measured intuitively, and the scale plate is clamped through the guide rail, The motion cooperation between the slider, the two-way screw and the stepping screw mechanism, the stepping screw mechanism is equipped with an induction device, which can realize the precise positioning of the to-be-received sheets of different widths.

附图说明Description of drawings

图1为本发明实施例1结构示意图。FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

图2为本发明实施例1底板结构剖面示意图。FIG. 2 is a schematic cross-sectional view of the bottom plate structure according to Embodiment 1 of the present invention.

图3为本发明实施例1使用状态示意图。FIG. 3 is a schematic diagram of the use state of Embodiment 1 of the present invention.

图4是本发明实施例2三维装配示意图。4 is a schematic diagram of a three-dimensional assembly of Embodiment 2 of the present invention.

图5是本发明实施例2定位座结构示意图。FIG. 5 is a schematic structural diagram of a positioning seat according to Embodiment 2 of the present invention.

图6是本发明实施例2第二夹持刻度板三视结构示意图。FIG. 6 is a three-view structural schematic diagram of the second clamping scale plate in Embodiment 2 of the present invention.

图7是本发明实施例2固定支架三视结构示意图。FIG. 7 is a three-view structural schematic diagram of a fixing bracket according to Embodiment 2 of the present invention.

图8是本发明实施例2导轨滑块二视结构示意图。FIG. 8 is a two-view structural schematic diagram of a guide rail slider according to Embodiment 2 of the present invention.

具体实施方式Detailed ways

下面结合附图和实施例对本发明作进一步说明,其中:以双向丝杠的轴向为纵向,双向丝杠的轴向垂直为横向,待接板料进料方向为横向。The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: the axial direction of the bidirectional screw is vertical, the vertical direction of the bidirectional screw is horizontal, and the feeding direction of the sheet to be received is horizontal.

实施例1Example 1

如图所示,板料夹持定位装置包括:底板1、螺钉2、导轨板3、滑块4、侧板5、双向丝杠6、夹持刻度板7、凹模孔8、上板料9,下板料10,步进式螺旋机构11,步进式送板机构12。As shown in the figure, the plate clamping and positioning device includes: bottom plate 1, screw 2, guide plate 3, slider 4, side plate 5, bidirectional screw 6, clamping scale plate 7, die hole 8, upper plate 9. Lower plate material 10, stepping screw mechanism 11, stepping plate feeding mechanism 12.

侧板5的外侧加工有内螺纹,侧面板5与底板1通过螺钉紧固连接,侧面板5与导轨板3通过螺钉2连接;夹持刻度板7的上表面标有单位为1mm的刻度尺,夹持刻度板中心的刻度值为零,依次向两端展开,刻度线沿着垂直方向在夹持刻度板7的内侧作引线至底部,便于待接板料沿着横向移动,进行搭接尺寸的定位;夹持刻度板7和滑块4通过胶接连接,夹持刻度板7上部连接着滑块4,滑块4架设在导轨板3上,由于受力作用可以纵向移动。The outer side of the side plate 5 is processed with internal threads, the side plate 5 and the bottom plate 1 are fastened and connected by screws, and the side plate 5 and the guide rail plate 3 are connected by screws 2; the upper surface of the clamping scale plate 7 is marked with a scale with a unit of 1mm. , the scale value in the center of the clamping scale plate is zero, and it is expanded to both ends in turn. The scale line is used as a lead from the inner side of the clamping scale plate 7 to the bottom along the vertical direction, so that the plate material to be connected can move laterally and overlap. Size positioning; the clamping scale plate 7 and the slider 4 are connected by glue, the upper part of the clamping scale plate 7 is connected with the slider 4, and the slider 4 is erected on the guide rail plate 3, which can move longitudinally due to the force.

当需要夹持待接板料时,顺时针同时转动两双向丝杠6,两块夹持刻度板4之间的距离渐渐增大,由于使用双向丝杠6,两块夹持刻度板之间的距离的增大是同步的,可以保证工作的精确;底板1的正中心加工有凹模孔8,可以放置凹模,凹模孔8与自冲铆接机的凹模通过间隙配合连接。When it is necessary to clamp the to-be-received sheet, turn the two bidirectional lead screws 6 clockwise at the same time, and the distance between the two clamping scale plates 4 gradually increases. The increase of the distance is synchronous, which can ensure the accuracy of the work; the center of the bottom plate 1 is machined with a die hole 8, which can be placed. The die hole 8 is connected with the die of the self-piercing riveting machine through clearance fit.

侧板5外侧面加工有六个螺纹孔,导轨板3两侧加工有四个螺纹孔,底板1两侧加工有四个螺纹孔,这些螺纹孔用于安装螺钉起到固定侧板5、导轨板3、底板1的作用。There are six threaded holes on the outer side of the side plate 5, four threaded holes on both sides of the guide plate 3, and four threaded holes on both sides of the bottom plate 1. These threaded holes are used to install screws to fix the side plate 5 and the guide rail. The role of plate 3 and bottom plate 1.

侧板5与夹持刻度板7之间安装有两根双向丝杠6,通过步进式螺旋机构11同步转动双向丝杠6来增大或减小两块夹持刻度板7之间的距离以达到夹持待接板料的目的,步进式螺旋机构11中设有感应装置,当步进式螺旋机构11旋转时,夹持刻度板7对上板料9和下板料10的两侧挤压,当挤压力达到到一定时,步进式螺旋机构11停止工作,上板料9和下板料10的两侧挤压到位;先设定上板料9在横向上的位置,由步进式送板机构12对下板料10进料进行控制,即控制搭接长度,夹持刻度板7上的刻度可以直观看出搭接长度。Two bidirectional lead screws 6 are installed between the side plate 5 and the clamping scale plate 7, and the bidirectional lead screw 6 is rotated synchronously by the stepping screw mechanism 11 to increase or decrease the distance between the two clamping scale plates 7 In order to achieve the purpose of clamping the plate to be received, the stepping screw mechanism 11 is provided with an induction device. When the stepping screw mechanism 11 rotates, the clamping scale plate 7 is opposite to the two sides of the upper plate 9 and the lower plate 10. Side extrusion, when the extrusion force reaches a certain level, the stepping screw mechanism 11 stops working, and the two sides of the upper sheet 9 and the lower sheet 10 are squeezed in place; first set the position of the upper sheet 9 in the lateral direction , the feeding of the lower sheet material 10 is controlled by the step-by-step plate feeding mechanism 12, that is, the lap length is controlled, and the scale on the clamping scale plate 7 can intuitively see the lap length.

夹持刻度板7上表面、内侧表面设置有刻度,通过转动双向丝杠6来控制两块夹持刻度板7之间的距离,可方便快捷地将待接板料的铆接中心与凹模孔8的中心精准配合。The upper surface and the inner surface of the clamping scale plate 7 are provided with scales, and the distance between the two clamping scale plates 7 is controlled by rotating the bidirectional screw 6, which can conveniently and quickly connect the riveting center of the plate to be received with the die hole. The center of the 8 fits precisely.

实施例1工作过程如下:The working process of embodiment 1 is as follows:

如图所示,当需要夹持待接板料时,感应装置发出感应信号控制步进式螺旋机构11反向转动双向丝杠,通过步进式螺旋机构11转动双向丝杠以增大两块夹持刻度板之间的距离,待两块夹持刻度板之间的距离略大于待接板料宽度时,通过步进式送板机构12依次放入上或下两块待接板料并控制搭接长度,两块夹持刻度板设有刻度线直观验证两待接板料的搭接长度,确定好搭接长度后,步进式螺旋机构11正向同时转动双向丝杠,当两待接板料快要被夹紧时,再确认搭接长度,以保证搭接长度的精准,然后继续正向转动双向丝杠,挤压力达到到一定时,感应装置通过感应上板料9和下板料10的两侧挤压力,当挤压力达到到一定时,感应装置发出感应信号控制步进式螺旋机构11停止工作,待接板料完全夹持;As shown in the figure, when the plate to be received needs to be clamped, the induction device sends out an induction signal to control the stepping screw mechanism 11 to reversely rotate the bidirectional screw, and the bidirectional screw is rotated through the stepping screw mechanism 11 to increase the two-way screw. The distance between the clamping scale plates, when the distance between the two clamping scale plates is slightly larger than the width of the plate to be received, put the upper or lower two plates to be received in turn through the step-by-step plate feeding mechanism 12. To control the lap length, the two clamping scale plates are provided with scale lines to visually verify the lap length of the two sheets to be connected. When the plate to be received is about to be clamped, confirm the lap length to ensure the accuracy of the lap length, and then continue to rotate the two-way screw in the forward direction. The pressing force on both sides of the lower sheet 10, when the pressing force reaches a certain level, the induction device sends out an induction signal to control the stepping screw mechanism 11 to stop working, and the sheet to be received is completely clamped;

当上板料9和下板料10铆接完成后,感应装置发出感应信号控制步进式螺旋机构11反向转动双向丝杠,夹持板之间张开。When the upper plate 9 and the lower plate 10 are riveted, the induction device sends out an induction signal to control the stepping screw mechanism 11 to reversely rotate the bidirectional screw, and the clamping plates are opened.

感应装置、控制系统可以采用现有技术,本实施例主要是提供感应、控制过程。The sensing device and the control system may adopt the prior art, and this embodiment mainly provides the sensing and control process.

实施例2Example 2

图4所示,结构包括:定位座21、第二夹持刻度板22、固定支架23、导轨滑块24、螺母25、深沟球轴承26、内六角头螺钉27和第二双向丝杠28。As shown in FIG. 4 , the structure includes: a positioning seat 21 , a second clamping scale plate 22 , a fixed bracket 23 , a guide rail slider 24 , a nut 25 , a deep groove ball bearing 26 , a hexagon socket head screw 27 and a second bidirectional screw 28 .

图5所示,定位座21为凹型槽结构,中间加工圆孔即凹模孔,与自冲铆接机下模具装配;定位座21凹模孔直径略大于自冲铆接机下模具直径,形成间隙配合。As shown in Fig. 5, the positioning seat 21 is a concave groove structure, and a circular hole, that is, a die hole, is processed in the middle, which is assembled with the lower die of the self-piercing riveting machine; the diameter of the die hole of the positioning seat 21 is slightly larger than the diameter of the lower die of the self-piercing riveting machine, forming a gap Cooperate.

图6所示,第二夹持刻度板22正面加工刻度线,与上端面对应标刻度,上端面的刻度,中点处为0,两侧各30mm,最小刻度为1mm;一侧加工通孔,通过通孔内置螺母25安装第二双向丝杠28,与导轨滑块24通过内六角头螺钉27紧固连接。As shown in FIG. 6 , the front surface of the second clamping scale plate 22 is machined with a scale line, which corresponds to the scale on the upper end face. The scale on the upper end face is 0 at the midpoint, 30mm on both sides, and the minimum scale is 1mm; one side is processed through The second bidirectional screw 28 is installed through the built-in nut 25 in the through hole, and is fastened with the guide rail slider 24 through the socket head screw 27 .

图7所示,固定支架23为山字型结构,前后两端与定位座21焊接连接,中间部位开方孔,然后前后侧开圆孔,将深沟球轴承26安装在圆孔内,然后将第二双向丝杠28旋入深沟球轴承26内过盈配合。As shown in FIG. 7 , the fixing bracket 23 is a mountain-shaped structure, the front and rear ends are welded to the positioning seat 21, a square hole is opened in the middle part, and then a round hole is opened on the front and rear sides, and the deep groove ball bearing 26 is installed in the round hole, and then Screw the second bidirectional screw 28 into the deep groove ball bearing 26 for an interference fit.

图8所示,导轨滑块24下端开槽,宽度与定位座21水平板厚度相等,将定位座21水平板嵌入导轨滑块24切槽部分进行装配。导轨滑块24共4个,导轨滑块24底部有凹槽,与定位座21水平板间隙装配,外侧加工两个螺纹孔,通过内六角头螺钉27与第二夹持刻度板22固定连接。As shown in FIG. 8 , the lower end of the guide rail slider 24 is slotted, and the width is equal to the thickness of the horizontal plate of the positioning seat 21 . There are four guide rail sliders 24 in total. The bottom of the guide rail slider 24 has a groove, which is assembled with the horizontal plate of the positioning seat 21, and two threaded holes are machined on the outside.

将待连接板推入第二夹持刻度板22之间,根据搭接区长度推至指定刻度线位置,在第二双向丝杠28的作用下,第二夹持刻度板22受力将待连接板加紧,实现长度和宽度方向定位。Push the plate to be connected between the second clamping scale plates 22, and push it to the specified scale line position according to the length of the overlapping area. Under the action of the second two-way screw 28, the second clamping scale plate 22 is forced to be The connecting plate is tightened to realize the positioning in the length and width directions.

上述使用的内六角头螺钉27标准件,定位座21、第二夹持刻度板22、固定支架23和导轨滑块24由低碳钢材料制成。The standard parts of the hexagon socket head screw 27 used above, the positioning seat 21 , the second clamping scale plate 22 , the fixing bracket 23 and the guide rail slider 24 are made of low carbon steel material.

实施例2过程如下:Embodiment 2 process is as follows:

将装配好的预定位装置通过凹模孔安装在自冲铆接机下模具上,定位座21凹模孔与模具间隙配合。第二双向丝杠28通过深沟球轴承26与固定支架23安装定位,第二双向丝杠28前后侧旋入第二夹持刻度板22紧固安装的螺母25内,旋转第二双向丝杠28可使第二夹持刻度板22通过导轨滑块24前后对称移动。将待连接板材沿长度方向推入第二夹持刻度板22之间,旋转第二双向丝杠28,可使加持刻度板2同时向内侧移动,夹紧待连接板材,实现沿板材宽度方向的定位。同时,根据给定的连接尺寸,将待连接板材继续推至第二夹持刻度板22内侧刻度线位置,实现沿板材长度方向的定位,从而完成板材在自冲铆接连接前的准确预定位。The assembled pre-positioning device is installed on the lower mold of the self-piercing riveting machine through the cavity of the cavity, and the cavity of the cavity of the positioning seat 21 is in clearance fit with the cavity. The second two-way screw 28 is mounted and positioned with the fixing bracket 23 through the deep groove ball bearing 26 , and the front and rear sides of the second two-way screw 28 are screwed into the nut 25 fastened to the second clamping scale plate 22 , and the second two-way screw is rotated. 28 can make the second clamping scale plate 22 move forward and backward symmetrically through the guide rail slider 24 . Push the plate to be connected between the second clamping scale plates 22 along the length direction, and rotate the second two-way screw 28, so that the holding scale plate 2 can be moved inward at the same time, clamp the plate to be connected, and realize the movement along the width direction of the plate. position. At the same time, according to the given connection size, the plate to be connected is pushed to the position of the inner scale line of the second clamping scale plate 22 to realize the positioning along the length direction of the plate, so as to complete the accurate pre-positioning of the plate before self-piercing riveting connection.

同样,实施例2也能采用步进式螺旋机构11和步进式送板机构12。Likewise, the second embodiment can also adopt the step-by-step screw mechanism 11 and the step-by-step plate feeding mechanism 12 .

通过步进式螺旋机构11同步转动第二双向丝杠28来增大或减小两块第二夹持刻度板22之间的距离以达到夹持待接板料的目的,步进式螺旋机构11设有感应装置,当步进式螺旋机构11旋转时,第二夹持刻度板22对上板料和下板料的两侧挤压,当挤压力达到到一定时,步进式螺旋机构11停止工作,上板料和下板料的两侧挤压对齐到位;先设定上板料在横向上的位置,由步进式送板机构12对下板料进料进行控制,即控制搭接长度,第二夹持刻度板22上的刻度可以直观看出搭接长度。The second bidirectional screw 28 is rotated synchronously by the stepping screw mechanism 11 to increase or decrease the distance between the two second clamping scale plates 22 to achieve the purpose of clamping the plate to be received. The stepping screw mechanism 11 is provided with an induction device. When the stepping screw mechanism 11 rotates, the second clamping scale plate 22 squeezes both sides of the upper and lower sheets. When the extrusion force reaches a certain level, the stepping screw The mechanism 11 stops working, and the two sides of the upper sheet and the lower sheet are squeezed and aligned in place; first, the position of the upper sheet in the transverse direction is set, and the step-by-step sheet feeding mechanism 12 controls the feeding of the lower sheet, that is, To control the lap length, the scale on the second clamping scale plate 22 can intuitively see the lap length.

在本发明的描述中,需要理解的是,术语“横向”、“纵向”“上”、“下”、“左”、“右”、“前”、“后”、“正”、“反”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "horizontal", "longitudinal", "upper", "lower", "left", "right", "front", "rear", "forward", "reverse" The orientation or positional relationship indicated by ” and the like is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, a specific orientation, and a specific orientation. The orientation configuration and operation of the device should not be construed as a limitation of the present invention.

在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“连接”应做广义理解,对于本领域的普通技术人员而言,可以通过具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, and those of ordinary skill in the art can understand the above through specific circumstances. Specific meanings of terms in the present invention.

以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是本发明的原理,在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。The foregoing has shown and described the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principles of the present invention. Without departing from the spirit and scope of the present invention, there are various Variations and improvements are intended to fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A self-piercing riveter stepping type plate clamping and positioning device comprises a riveting platform, a positioning and clamping platform, clamping plates, two-way lead screws, a stepping screw mechanism (11) and a stepping plate conveying mechanism (12), wherein a through hole connected with the self-piercing riveter is formed in the center of the riveting platform;
the feeding direction of two plates to be connected is transverse and vertical to the axial direction of the bidirectional screw rod, a positioning space in the length direction of the plates to be connected is formed between the positioning clamping platform surface and the riveting platform surface in the two clamping plates in the feeding direction, a plate to be connected is positioned through a movable positioning block on the riveting platform, the other plate to be connected enters the riveting platform through a stepping plate conveying mechanism (12) and the lap joint length of the two plates to be connected is controlled by the stepping plate conveying mechanism (12).
2. The stepping type plate material clamping and positioning device of the self-piercing riveting machine according to claim 1, wherein the riveting platform comprises a bottom plate (1), the positioning and clamping platform comprises two guide rail plates (3) which are vertically and longitudinally arranged and two side plates (5) which are horizontally arranged left and right, a square frame main body is formed among the bottom plate (1), the guide rail plates (3) and the side plates (5), and the clamping plate is a clamping scale plate (7) with scales;
the upper edge of the guide rail plate (3) is provided with a guide rail, the middle part of the lower end of the guide rail plate is provided with a groove, and the two grooves and the bottom plate (1) form a transverse feeding groove for the plates to be connected; a female die hole (8) connected with a female die of a self-piercing riveting machine is formed in the center of a bottom plate (1) in the square frame body, clamping scale plates (7) are arranged on the upper guide rail and the lower guide rail, the clamping scale plates (7) are in longitudinal sliding connection with the guide rails, and the two side plates (5) are connected with the two clamping scale plates (7) through at least one bidirectional screw (6);
relative to the plane transverse center line of the female die hole (8), the clamping scale plate (7) is symmetrical left and right, the zero scale of the clamping scale plate (7) is aligned with the plane longitudinal center line of the female die hole (8), and the middle point of the bidirectional screw rod (6) is aligned with the plane transverse center line of the female die hole (8).
3. The stepping type plate clamping and positioning device of the self-piercing riveting machine according to claim 2, wherein two ends of the clamping scale plate (7) are longitudinally connected with the upper and lower guide rails in a sliding manner through sliding blocks (4).
4. The stepping type plate clamping and positioning device of the self-piercing riveting machine according to claim 2, characterized in that at least one end of the bottom plate (1) is longitudinally provided with a sliding groove, the bottom of the clamping scale plate (7) is provided with a convex block, the convex block is in sliding connection or abdicating connection with the sliding groove, and the bottoms of the two side plates (5) and the convex block of the two clamping scale plates (7) are connected through a bidirectional screw (6).
5. The stepping type plate material clamping and positioning device of the self-punching riveting machine according to claim 1, wherein the riveting platform comprises a positioning seat (21), the positioning and clamping platform comprises a fixing bracket (23), and the clamping plate is a second clamping scale plate (22) with scales;
the positioning seat (21) is of a concave groove structure, a concave die hole connected with a female die of the self-piercing riveting machine is formed in the center of a groove bottom plate, two second clamping scale plates (22) are arranged on the groove bottom plate of the positioning seat (21) and form longitudinal sliding connection, the fixing support (23) is installed on the positioning seat (21), and the two second clamping scale plates (22) and the fixing support (23) are connected through at least one second bidirectional lead screw (28), wherein the two second clamping scale plates (22) are respectively connected with two lead screw parts in different directions in the second bidirectional lead screw (28);
relative to the plane transverse center line of the female die hole, the second clamping scale plate (22) is bilaterally symmetrical, the zero scale of the second clamping scale plate (22) is aligned with the plane longitudinal center line of the female die hole, the middle point of the second bidirectional lead screw (28) is aligned with the plane transverse center line of the female die hole, and the middle part of the second bidirectional lead screw (28) is a lead screw or a polished rod.
6. The stepping type plate clamping and positioning device of the self-piercing riveting machine as claimed in claim 5, wherein two ends of the second clamping scale plate (22) are respectively connected with two ends of the bottom plate of the positioning base (21) in a longitudinal sliding manner through the guide rail sliding blocks (24).
7. The stepping type plate material clamping and positioning device of the self-piercing riveting machine is characterized in that the lower end of the guide rail sliding block (24) is provided with a groove, and a groove bottom plate is embedded into the groove to form a sliding groove connecting structure.
8. The stepping type plate clamping and positioning device of the self-piercing riveting machine is characterized in that machining scale marks are arranged on opposite surfaces of two second clamping scale plates (22), scale values are correspondingly marked on the upper end surfaces of the second clamping scale plates (22), nuts (25) are respectively arranged in the two second clamping scale plates (22), the nuts (25) are connected with a second bidirectional lead screw (28), and the second bidirectional lead screw (28) is connected with the nuts (25) in a rotating mode to enable the two second clamping scale plates (22) to slide in opposite directions.
9. The stepping plate clamping and positioning device of the self-piercing riveting machine as claimed in claim 5 or 8, wherein the fixing support (23) is of a herringbone structure, the end faces of the support at two sides of the herringbone structure are connected with the end faces of the side plates of the two grooves of the positioning seat (21), the middle part of the fixing support (23) is of a square plate or square frame structure, the deep groove ball bearing (26) is installed in the square plate or square frame structure, and the polished rod at the middle part of the second bidirectional screw rod (28) is in interference fit with the deep groove ball bearing (26).
10. The stepping type plate clamping and positioning device of the self-piercing riveting machine according to claim 1, wherein before feeding, the induction device sends out induction signals to control the stepping type screw mechanism (11) to reversely rotate the bidirectional screw rod, and the clamping plates are opened;
after an upper plate material (9) and a lower plate material (10) are positioned by a movable positioning block and fed by a stepping plate feeding mechanism (12), an induction device sends out an induction signal to control a stepping screw mechanism (11) to rotate a bidirectional screw rod in the forward direction, and clamping is carried out between clamping plates;
the induction device induces the extrusion force of the two sides of the upper plate material (9) and the lower plate material (10), and when the extrusion force reaches a certain value, the induction device sends out an induction signal to control the step-type screw mechanism (11) to stop working;
after the upper plate (9) and the lower plate (10) are riveted, the induction device sends out induction signals to control the stepping screw mechanism (11) to reversely rotate the bidirectional screw rod, and the clamping plates are opened.
CN202010594159.6A 2020-06-28 2020-06-28 Stepping type plate clamping and positioning device of self-punching riveting machine Pending CN111618231A (en)

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CN202010594159.6A CN111618231A (en) 2020-06-28 2020-06-28 Stepping type plate clamping and positioning device of self-punching riveting machine

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CN202010594159.6A CN111618231A (en) 2020-06-28 2020-06-28 Stepping type plate clamping and positioning device of self-punching riveting machine

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Application publication date: 20200904