CN104191025B - The device of planing miniature workpiece inner hole key slot - Google Patents
The device of planing miniature workpiece inner hole key slot Download PDFInfo
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- CN104191025B CN104191025B CN201410480098.5A CN201410480098A CN104191025B CN 104191025 B CN104191025 B CN 104191025B CN 201410480098 A CN201410480098 A CN 201410480098A CN 104191025 B CN104191025 B CN 104191025B
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Abstract
本发明公开了一种刨削小型工件内孔键槽的装置，包括一弓形刀架，弓形刀架一端底部铰接于地面上，弓形刀架另一端悬空，并通过杠杆与一凸轮相连，弓形刀架上部安装一中部悬空的水平设置的刀杆，刀杆上安装有刀具；凸轮通过同步带与动力机构的主动轮相连，主动轮的偏心位置铰接一连杆，连杆另一端与一水平设置的滑枕一端铰接，滑枕另一端固定于竖向设置的滑板箱，滑板箱中设有上下调节机构，滑板箱一侧设有与上下调节机构相连的滑板，滑板一侧固定有定位元件，定位元件的定位基面分别与所需加工工件的内孔及定位端面相配合；动力机构带动滑枕、滑板和定位元件水平往复移动，动力机构同步带动凸轮转动，在杠杆作用下，弓形刀架沿铰接端上下摆动。
The invention discloses a device for planing the keyway of the inner hole of a small workpiece, which comprises a bow-shaped knife rest, one end of the bow-shaped knife rest is hinged on the ground, the other end of the bow-shaped knife rest is suspended in the air, and is connected with a cam through a lever, and the bow-shaped knife rest The upper part is equipped with a horizontally set tool bar suspended in the middle, and a tool is installed on the tool bar; the cam is connected with the driving wheel of the power mechanism through a synchronous belt, and the eccentric position of the driving wheel is hinged with a connecting rod, and the other end of the connecting rod is connected with a horizontally arranged tool bar. One end of the ram is hinged, and the other end of the ram is fixed to the vertically arranged skateboard box. The skateboard box is equipped with an up and down adjustment mechanism. One side of the skateboard box is equipped with a slide plate connected with the up and down adjustment mechanism. One side of the slide plate is fixed with a positioning element for positioning. The positioning base surface of the component matches the inner hole and the positioning end surface of the workpiece to be processed respectively; the power mechanism drives the ram, the slide plate and the positioning element to reciprocate horizontally, and the power mechanism synchronously drives the cam to rotate. The hinged end swings up and down.
Description
技术领域technical field
本发明涉及一种刨削小型工件内孔键槽的装置。The invention relates to a device for planing a keyway in the inner hole of a small workpiece.
背景技术Background technique
机械加工中经常会有一些小型铸铁套、小型钢制齿轮等，其内孔需要加工键槽。由于内孔较小且键槽宽度也不相同，如果采用拉削加工，需定制多种规格拉刀，在拉床上加工设备成本及工时费用较大。对于小批量生产，通常采用牛头刨床刨削加工，刀杆固定在刀架上为悬臂支承，特别是当工件内孔较小时，刀杆太细会产生很大变形，导致两端键槽深度不同；刀杆变形太大时，刀具根本无法切入工件。In machining, there are often some small cast iron sleeves, small steel gears, etc., whose inner holes need to be processed with keyways. Since the inner hole is small and the keyway width is different, if broaching is used, broaches of various specifications need to be customized, and the cost of processing equipment and working hours on the broaching machine is relatively high. For small batch production, planer is usually used for planing processing, and the tool bar is fixed on the tool holder as a cantilever support. Especially when the inner hole of the workpiece is small, the tool bar is too thin to cause great deformation, resulting in different depths of key grooves at both ends; When the shank deforms too much, the tool cannot cut into the workpiece at all.
发明内容Contents of the invention
本发明的目的是为克服上述现有技术的不足，提供一种刨削小型工件内孔键槽的装置，采用刨削加工原理，而刀杆采用两端固定方式，大大提高工艺系统刚度，可用于较小尺寸内孔键槽加工。The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a device for planing the keyway of the inner hole of a small workpiece, which adopts the principle of planing, and the tool bar adopts a fixed method at both ends, which greatly improves the rigidity of the process system and can be used for Small size inner hole keyway processing.
为实现上述目的，本发明采用下述技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种刨削小型工件内孔键槽的装置，包括一弓形刀架，所述弓形刀架一端底部铰接于固定件或地面上，弓形刀架另一端悬空，并通过杠杆与一凸轮相连，弓形刀架上部安装一中部悬空的水平设置的刀杆，刀杆上安装有刀具；所述凸轮通过同步带与动力机构的主动轮相连，所述主动轮的偏心位置铰接一连杆，连杆另一端与一水平设置的滑枕一端铰接，滑枕另一端固定于竖向设置的滑板箱，滑板箱中设有上下调节机构，滑板箱一侧设有能够沿滑板箱上下滑动且与上下调节机构相连的滑板，滑板一侧固定有定位元件，所述定位元件的定位基面分别与所需加工工件的内孔及定位端面相配合；动力机构带动滑枕、滑板和定位元件水平往复移动，动力机构同步带动凸轮转动，在杠杆作用下，弓形刀架沿铰接端上下摆动。A device for planing the keyway of the inner hole of a small workpiece, comprising a bow-shaped knife rest, one end of the bow-shaped knife rest is hinged on a fixed piece or the ground, the other end of the bow-shaped knife rest is suspended in the air, and is connected with a cam through a lever, the bow-shaped knife The upper part of the frame is equipped with a horizontally set knife rod suspended in the middle, and a knife is installed on the knife rod; the cam is connected with the driving wheel of the power mechanism through a synchronous belt, and the eccentric position of the driving wheel is hinged to a connecting rod, and the other end of the connecting rod It is hinged with one end of a horizontally arranged ram, and the other end of the ram is fixed to a vertically arranged skateboard box. There is an up and down adjustment mechanism in the skateboard box. One side of the skateboard box is equipped with a device that can slide up and down along the skateboard box and is connected with the up and down adjustment mechanism. One side of the slide plate is fixed with a positioning element, and the positioning base surface of the positioning element is respectively matched with the inner hole and the positioning end surface of the workpiece to be processed; the power mechanism drives the ram, the slide plate and the positioning element to reciprocate horizontally, and the power mechanism The cam is driven synchronously to rotate, and under the action of leverage, the bow-shaped tool holder swings up and down along the hinged end.
所述弓形刀架一端底部通过转动轴和定位套安装于固定件或地面上。刀具尺寸与键槽宽度不同时，刀具位置可适当调节，通过改变弓形刀架在转动轴轴向位置，由两个定位套固定，以适应不同宽度键槽需求。The bottom of one end of the bow-shaped knife rest is installed on the fixed piece or the ground through the rotating shaft and the positioning sleeve. When the size of the tool is different from the width of the keyway, the position of the tool can be adjusted appropriately. By changing the axial position of the bow-shaped tool holder on the rotating shaft, it is fixed by two positioning sleeves to meet the needs of keyways with different widths.
所述刀杆两端固定安装于弓形刀架上，刀杆中部悬空。刀杆采用两端固定并拉紧，刀杆刚度大，有利于切削加工，提高效率；可以加工一般刨床无法加工的小孔键槽。The two ends of the knife rod are fixedly installed on the bow-shaped knife holder, and the middle part of the knife rod is suspended. The cutter bar is fixed and tightened at both ends, and the rigidity of the cutter bar is large, which is conducive to cutting and improving efficiency; it can process small hole keyways that cannot be processed by ordinary planers.
所述凸轮固定于固定件或地面上。The cam is fixed on a fixture or on the ground.
所述杠杆一端通过滚轮安装于凸轮的凸轮槽内，另一端固定安装于弓形刀架一端，且弓形刀架的该连接端上设有一长条槽孔，杠杆通过螺栓固定于该端的长条槽孔中，杠杆中部通过转动轴安装于底座上。One end of the lever is installed in the cam groove of the cam through a roller, and the other end is fixedly installed on one end of the bow-shaped knife rest, and the connecting end of the bow-shaped knife rest is provided with a long slot, and the lever is fixed to the long slot at this end by bolts In the hole, the middle part of the lever is installed on the base through the rotating shaft.
所述凸轮槽由两段不同半径圆弧及过渡段连接组成。The cam groove is composed of two sections of arcs with different radii connected by a transition section.
所述同步带为同步齿形带。The synchronous belt is a synchronous toothed belt.
所述动力机构包括动力箱以及安装在动力箱输出轴上的主动轮，动力箱中设有电机。The power mechanism includes a power box and a driving wheel installed on the output shaft of the power box, and a motor is arranged in the power box.
所述滑枕安装于水平滑套中。滑枕能够沿滑套往复移动。The ram is installed in a horizontal sliding sleeve. The ram is capable of reciprocating movement along the sleeve.
所述上下调节机构包括设置于滑板箱中的丝杠和位于滑板箱外侧上部的手轮，手轮和丝杠上端相连，丝杠穿过伸入到滑板箱中的滑板侧面上螺母。转动手轮，通过丝杠与螺母的螺纹配合，能够调整滑板沿滑板箱上下移动。The up-and-down adjustment mechanism includes a lead screw arranged in the skateboard box and a handwheel located on the upper outside of the skateboard box. The handwheel is connected to the upper end of the lead screw, and the lead screw passes through the nut on the side of the slide plate extending into the skateboard box. Turn the hand wheel, and through the threaded cooperation of the lead screw and the nut, the slide plate can be adjusted to move up and down along the slide box.
所述定位元件的孔中有允许刀具通过的槽。There is a slot in the hole of the positioning element to allow the knife to pass through.
本发明采用刨削加工原理，而刀杆采用两端固定方式，大大提高工艺系统刚度，可用于较小尺寸内孔键槽加工。本发明用于在已加工内孔中刨削键槽，包括主运动、工件定位、刀具进给运动、刀具让刀运动以及刀架位置调整。The present invention adopts the planing processing principle, and the cutter rod adopts the way of fixing at both ends, which greatly improves the rigidity of the process system, and can be used for processing the keyway of the inner hole with a smaller size. The invention is used for planing the keyway in the machined inner hole, including main movement, workpiece positioning, tool feed movement, tool letting movement and tool holder position adjustment.
1)主运动1) Main movement
经过减速后动力箱带动主动轮转动，连杆驱动滑枕往复直线运动。传统的刨削加工中，刀具做直线往复运动，在本装置中滑枕运动带动工件相对刀具运动，因此该运动即为切削加工的主运动。工件做直线运动而刀具静止不动，这也是与传统刨削加工不同的地方，这种刨削加工方式特别适合于小型工件内孔中加工键槽。After deceleration, the power box drives the driving wheel to rotate, and the connecting rod drives the ram to reciprocate and linearly move. In the traditional planing process, the tool makes a linear reciprocating motion. In this device, the movement of the ram drives the workpiece to move relative to the tool, so this movement is the main movement of the cutting process. The workpiece moves in a straight line while the tool stays still, which is also different from the traditional planing process. This planing process is especially suitable for machining keyways in the inner holes of small workpieces.
2)工件定位2) Workpiece positioning
定位元件固定在滑板上。工件内孔及定位端面分别与定位元件的定位基面配合，并且由夹紧机构将工件夹紧。定位元件孔内有槽，允许刀具通过。根据工件内孔不同，要更换定位元件。The positioning element is fixed on the slide plate. The inner hole of the workpiece and the positioning end surface cooperate with the positioning base surface of the positioning element respectively, and the workpiece is clamped by the clamping mechanism. There is a slot in the hole of the positioning element to allow the passage of the tool. Depending on the inner hole of the workpiece, the positioning element should be replaced.
3)进给运动3) Feed movement
受刀杆刚度、刀具强度等限制，键槽深度需多次走刀完成。刀具进给运动由手动完成。用手转动手轮，丝杠螺母机构带动滑板，工件径向位移实现刀具切削深度改变。Limited by the rigidity of the tool holder and the strength of the tool, the depth of the keyway needs to be completed in multiple passes. The tool feed movement is done manually. Turn the hand wheel by hand, the screw nut mechanism drives the slide plate, and the radial displacement of the workpiece realizes the change of the cutting depth of the tool.
4)刀具让刀运动4) The knife makes the knife move
刀具回程不做切削运动时，刀具离开已加工表面，减小刀具后刀面磨损及划伤已加工表面。主动轮与凸轮之间为同步齿形带传动，即主运动与让刀运动之间为内联系。凸轮的凸轮槽由两段不同半径圆弧及过渡段组成。杠杆中间为固定转动轴，一端滚轮在凸轮槽内，另一端撬动弓形刀架绕转动轴摆动。当滑枕向切削加工方向运动时，弓形刀架使刀杆处于水平位置；滑枕反向运动时，杠杆使弓形刀架绕转动轴向下摆动，刀具与已加工表面脱离接触。When the tool returns without cutting motion, the tool leaves the machined surface, reducing the tool flank wear and scratching the machined surface. The driving wheel and the cam are driven by a synchronous toothed belt, that is, the main movement and the movement of the knife are internally linked. The cam groove of the cam is composed of two arcs with different radii and a transition section. The middle of the lever is a fixed rotating shaft, one end of the roller is in the cam groove, and the other end pries the bow-shaped tool holder to swing around the rotating shaft. When the ram moves in the direction of cutting, the bow-shaped tool holder keeps the tool bar in a horizontal position; when the ram moves in the opposite direction, the lever makes the bow-shaped tool holder swing downward around the rotation axis, and the tool is out of contact with the processed surface.
5)刀架位置调整5) Tool post position adjustment
刀架位置调整适应不同宽度键槽。刀具尺寸与键槽宽度相同时，弓形刀架位置不需调整；刀具尺寸与键槽宽度不同时，刀具位置可适当调节。改变弓形刀架在转动轴轴向位置，由定位套(2个)固定。The position of the knife holder can be adjusted to adapt to different width keyways. When the size of the tool is the same as the width of the keyway, the position of the bow tool holder does not need to be adjusted; when the size of the tool is different from the width of the keyway, the position of the tool can be adjusted appropriately. Change the axial position of the bow-shaped tool rest on the rotating shaft, and fix it by positioning sleeves (2 pieces).
本发明的技术特点是：Technical characteristics of the present invention are:
1)运动部件与传统刨削加工不同：工件作直线往复运动、在切削加工中刀具静止不动。1) The moving parts are different from the traditional planing process: the workpiece moves in a linear reciprocating motion, and the tool stays still during the cutting process.
2)刀杆不是悬臂支承安装，而是采用两端固定并拉紧，刀杆刚度大，有利于切削加工，提高效率；可以加工一般刨床无法加工的小孔键槽。2) The cutter bar is not installed with cantilever support, but is fixed and tightened at both ends. The rigidity of the cutter bar is large, which is conducive to cutting and improving efficiency; it can process small hole keyways that cannot be processed by ordinary planers.
3)工件反向运动，不作切削运动时，刀具可以自动退刀，减小刀具后刀面与已加工表面摩擦，降低表面粗糙度，提高刀具使用寿命。3) The workpiece moves in the opposite direction. When the cutting movement is not performed, the tool can automatically withdraw the tool, which reduces the friction between the tool flank and the machined surface, reduces the surface roughness, and improves the service life of the tool.
4)加工键槽宽度可以调节，一把刀具可以加工多种宽度规格键槽。4) The width of the processed keyway can be adjusted, and one tool can process keyways of various width specifications.
附图说明Description of drawings
图1是本发明的一个实施例结构示意图；Fig. 1 is a structural representation of an embodiment of the present invention;
其中1弓形刀架，2.定位套，3.转动轴，4.定位元件，5.刀杆，6.刀具，7.滑板，8.丝杠，9.手轮，10.滑枕，11.连杆，12.主动轮，13.动力箱，14.同步带，15.凸轮，16.杠杆，17垫圈，18.螺母，19.滑板箱，20.工件。Wherein 1 bow-shaped knife holder, 2. positioning sleeve, 3. rotating shaft, 4. positioning element, 5. knife rod, 6. tool, 7. slide plate, 8. leading screw, 9. handwheel, 10. ram, 11 .Connecting rod, 12. Driving wheel, 13. Power box, 14. Timing belt, 15. Cam, 16. Lever, 17 Washer, 18. Nut, 19. Skateboard box, 20. Work piece.
具体实施方式detailed description
下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1所示，一种刨削小型工件内孔键槽的装置，包括一弓形刀架1，所述弓形刀架1一端底部过转动轴3和定位套2铰接于固定件或地面上，弓形刀架1另一端悬空，并通过杠杆8与一凸轮15相连。刀具尺寸与键槽宽度不同时，刀具位置可适当调节，通过改变弓形刀架1在转动轴3轴向位置，由两个定位套2固定，以适应不同宽度键槽需求。As shown in Figure 1, a device for planing the keyway of the inner hole of a small workpiece includes a bow-shaped knife rest 1, and the bottom of one end of the bow-shaped knife rest 1 is hinged to a fixed piece or the ground through a rotating shaft 3 and a positioning sleeve 2, and the bow-shaped The other end of the knife rest 1 is suspended, and is connected with a cam 15 through a lever 8 . When the size of the tool is different from the width of the keyway, the position of the tool can be adjusted appropriately. By changing the axial position of the bow-shaped tool holder 1 on the rotating shaft 3, it is fixed by two positioning sleeves 2 to meet the needs of keyways of different widths.
弓形刀架1上部安装一中部悬空的水平设置的刀杆5，即刀杆5两端固定安装于弓形刀架1上，其中一端通过垫圈17和螺母18固定于弓形刀架1上，刀杆5上安装有刀具6；刀杆5采用两端固定并拉紧，刀杆5刚度大，有利于切削加工，提高效率；可以加工一般刨床无法加工的小孔键槽。The upper part of the bow-shaped knife rest 1 is equipped with a knife bar 5 suspended horizontally in the middle, that is, the two ends of the knife bar 5 are fixedly installed on the bow-shaped knife rest 1, and one end is fixed on the bow-shaped knife rest 1 by a washer 17 and a nut 18. Cutter 6 is installed on 5; Cutter bar 5 adopts two ends to be fixed and tensioned, and Cutter bar 5 rigidity is big, is conducive to cutting process, improves efficiency; Can process the small hole keyway that general planer can't process.
凸轮15固定于固定件或地面上，凸轮15通过同步齿形带与动力机构的主动轮12相连。动力机构包括动力箱13以及安装在动力箱13输出轴上的主动轮12，动力箱13中设有电机。The cam 15 is fixed on the fixture or the ground, and the cam 15 is connected with the driving wheel 12 of the power mechanism through a synchronous toothed belt. The power mechanism includes a power box 13 and a driving wheel 12 installed on the output shaft of the power box 13, and the power box 13 is provided with a motor.
杠杆8一端通过滚轮安装于凸轮15的凸轮槽内，另一端固定安装于弓形刀架1一端，且弓形刀架1的该连接端上设有一长条槽孔，杠杆8通过螺栓固定于该端的长条槽孔中，通过调整杠杆8在该长条槽孔中的位置，实现弓形刀架1沿转动轴3摆动幅度大小，杠杆8中部通过转动轴安装于底座上。凸轮槽由两段不同半径圆弧及过渡段连接组成。One end of the lever 8 is installed in the cam groove of the cam 15 through a roller, and the other end is fixedly installed on one end of the bow-shaped knife rest 1, and the connecting end of the bow-shaped knife rest 1 is provided with a long slotted hole, and the lever 8 is fixed on the end of the bow-shaped knife rest 1 by bolts. In the elongated slot, by adjusting the position of the lever 8 in the elongated slot, the bow-shaped knife rest 1 can swing along the rotating shaft 3, and the middle part of the lever 8 is installed on the base through the rotating shaft. The cam groove is composed of two arcs with different radii and connected by a transition section.
主动轮12的偏心位置铰接一连杆11，连杆11另一端与一水平设置的滑枕10一端铰接，滑枕10另一端固定于竖向设置的滑板箱19一侧面上；滑枕10安装于水平滑套中，滑枕10能够沿滑套往复移动。The eccentric position of the driving wheel 12 is hinged with a connecting rod 11, the other end of the connecting rod 11 is hinged with one end of a horizontally arranged ram 10, and the other end of the ram 10 is fixed on one side of a vertically arranged skateboard box 19; the ram 10 is installed In the horizontal sliding sleeve, the ram 10 can move back and forth along the sliding sleeve.
滑板箱19中设有上下调节机构，滑板箱19另一侧设有能够沿滑板箱19上下滑动且与上下调节机构相连的滑板7。上下调节机构包括设置于滑板箱中的丝杠8和位于滑板箱19外侧上部的手轮9，手轮9和丝杠8上端相连，丝杠8穿过伸入到滑板箱19中的滑板侧面上螺母。转动手轮9，通过丝杠8与螺母的螺纹配合，能够调整滑板7沿滑板箱上下移动。The skateboard box 19 is provided with an up and down adjustment mechanism, and the other side of the skateboard box 19 is provided with a slide plate 7 that can slide up and down along the skateboard box 19 and is connected with the up and down adjustment mechanism. The up and down adjustment mechanism includes a lead screw 8 arranged in the skateboard box and a handwheel 9 located on the upper outside of the skateboard box 19. The handwheel 9 is connected to the upper end of the lead screw 8, and the lead screw 8 passes through the side of the skateboard extending into the skateboard box 19. On the nut. Turn the handwheel 9, and the slide plate 7 can be adjusted to move up and down along the skateboard box through the threaded cooperation of the leading screw 8 and the nut.
滑板7一侧固定有定位元件4，所述定位元件4的定位基面分别与所需加工工件20的内孔及定位端面相配合；定位元件4的孔中有允许刀具通过的槽。One side of the slide plate 7 is fixed with a positioning element 4, and the positioning base surface of the positioning element 4 is matched with the inner hole and the positioning end surface of the workpiece 20 to be processed respectively; the hole of the positioning element 4 has a groove for allowing the tool to pass through.
动力机构带动滑枕10、滑板箱19、滑板7和定位元件4水平往复移动，动力机构同步带动凸轮15转动，在杠杆16作用下，弓形刀架1沿铰接端的转动轴3上下摆动。The power mechanism drives the ram 10, the slide box 19, the slide plate 7 and the positioning element 4 to reciprocate horizontally, and the power mechanism drives the cam 15 to rotate synchronously.
本发明用于在已加工内孔中刨削键槽，其传动系统及部分结构见图1。包括主运动、工件定位方法、刀具进给运动、刀具让刀运动以及刀架位置调整方法等。The present invention is used for planing the keyway in the machined inner hole, and its transmission system and partial structure are shown in Fig. 1 . Including the main movement, the workpiece positioning method, the tool feed movement, the tool let-off movement and the position adjustment method of the tool holder, etc.
1)主运动1) Main movement
经过减速后动力箱13带动主动轮12转动，连杆11驱动滑枕10往复直线运动。传统的刨削加工中，刀具做直线往复运动，在本装置中滑枕运动带动工件相对刀具运动，因此该运动即为切削加工的主运动。工件做直线运动而刀具静止不动，这也是与传统刨削加工不同的地方。After deceleration, the power box 13 drives the driving wheel 12 to rotate, and the connecting rod 11 drives the ram 10 to reciprocate and linearly move. In the traditional planing process, the tool makes a linear reciprocating motion. In this device, the movement of the ram drives the workpiece to move relative to the tool, so this movement is the main movement of the cutting process. The workpiece moves in a straight line while the tool stays still, which is also different from traditional planing.
2)工件定位2) Workpiece positioning
定位元件4固定在滑板7上。工件内孔及定位端面分别与定位元件4的定位基面配合，并且由夹紧机构将工件夹紧。定位元件孔内有槽，允许刀具通过。根据工件内孔不同，要更换定位元件4。The positioning element 4 is fixed on the slide plate 7 . The inner hole and the positioning end surface of the workpiece cooperate with the positioning base surface of the positioning element 4 respectively, and the workpiece is clamped by the clamping mechanism. There is a slot in the hole of the positioning element to allow the passage of the tool. According to the different inner holes of the workpiece, the positioning element 4 should be replaced.
3)进给运动3) Feed movement
受刀杆刚度、刀具强度等限制，键槽深度需多次走刀完成。刀具进给运动由手动完成。用手转动手轮9，丝杠螺母机构8带动滑板7，工件径向位移实现刀具切削深度改变。Limited by the rigidity of the tool holder and the strength of the tool, the depth of the keyway needs to be completed in multiple passes. The tool feed movement is done manually. Turn the hand wheel 9 by hand, the screw nut mechanism 8 drives the slide plate 7, and the radial displacement of the workpiece realizes the change of the cutting depth of the tool.
4)刀具让刀运动4) The knife makes the knife move
刀具回程不做切削运动时，刀具离开已加工表面，减小刀具后刀面磨损及划伤已加工表面。主动轮12与凸轮15之间为同步齿形带传动，即主运动与让刀运动之间为内联系。凸轮15凸轮槽由两段不同半径圆弧及过渡段组成。杠杆16中间为固定转动轴，一端滚轮在凸轮槽内，另一端撬动弓形刀架1绕转动轴3摆动。当滑枕10向切削加工方向运动时，弓形刀架1使刀杆5处于水平位置；滑枕10反向运动时，杠杆16使弓形刀架1绕转动轴3向下摆动，刀具6与已加工表面脱离接触。When the tool returns without cutting motion, the tool leaves the machined surface, reducing the tool flank wear and scratching the machined surface. The driving wheel 12 and the cam 15 are driven by a synchronous toothed belt, that is, the main movement and the movement of the knife are interlinked. Cam 15 cam grooves are made up of two sections of different radius arcs and a transition section. The middle of the lever 16 is a fixed rotating shaft, and the roller at one end is in the cam groove, and the other end pries the bow knife rest 1 to swing around the rotating shaft 3 . When the ram 10 moves to the cutting processing direction, the bow-shaped tool rest 1 makes the knife rod 5 be in a horizontal position; Machined surfaces are out of contact.
5)刀架位置调整5) Tool post position adjustment
刀架位置调整适应不同宽度键槽。刀具尺寸与键槽宽度相同时，弓形刀架1位置不需调整；刀具尺寸与键槽宽度不同时，刀具位置可适当调节。改变弓形刀架1在转动轴3轴向位置，由定位套2(2个)固定。The position of the knife holder is adjusted to adapt to different width keyways. When the size of the tool is the same as the width of the keyway, the position of the bow tool holder 1 does not need to be adjusted; when the size of the tool is different from the width of the keyway, the position of the tool can be adjusted appropriately. Change the axial position of the bow-shaped knife rest 1 on the rotating shaft 3, and fix it by positioning sleeves 2 (2 pieces).
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
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| CN105171096A (en) * | 2015-10-27 | 2015-12-23 | 北华航天工业学院 | Mechanical shaping machine primary motion mechanism |
| CN108161126A (en) * | 2017-11-29 | 2018-06-15 | 江阴市永兴机械制造有限公司 | A kind of spline squeezes knife and the pressing method of spline drived gear interval |
| CN108583127B (en) * | 2018-04-28 | 2020-05-26 | 重庆工业职业技术学院 | a sculptural device |
| CN109249073B (en) * | 2018-11-20 | 2023-09-05 | 惠州市屹沣电子科技有限公司 | Cam connecting rod swing cutter-back mechanism |
| CN109807382B (en) * | 2019-03-28 | 2024-03-19 | 中国人民解放军陆军军事交通学院镇江校区 | A bullhead planer with variable stroke speed ratio coefficient |
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