CN104191025A - Small workpiece inner hole keyway planing device - Google Patents
Small workpiece inner hole keyway planing device Download PDFInfo
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- CN104191025A CN104191025A CN201410480098.5A CN201410480098A CN104191025A CN 104191025 A CN104191025 A CN 104191025A CN 201410480098 A CN201410480098 A CN 201410480098A CN 104191025 A CN104191025 A CN 104191025A
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- slide plate
- inner hole
- knife rest
- planing
- cam
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Abstract
The invention discloses a small workpiece inner hole keyway planing device comprising a bow-shaped cutter holder. The bottom of one end of the bow-shaped cutter holder is hinged to the ground, the other end of the bow-shaped cutter holder is suspended and is connected to a cam through a lever, the upper portion of the bow-shaped cutter holder is provided with a cutter bar which is arranged horizontally, the middle of the cutter bar is impending, and the cutter bar is provided with a cutter; the cam is connected to a drive wheel of a power mechanism through an synchronous belt, the eccentric position of the drive wheel is hinged to a link, the other end of the link is hinged to one end of a ram which is arranged horizontally, the other end of the ram is fixed to a vertical sliding plate box, a vertical adjusting mechanism is arranged in the sliding plate box, one side of the sliding plate box is provided with a sliding plate connected to the vertical adjusting mechanism, one side of the sliding plate is fixed to a positioning element, and the positioning base plane of the positioning element matches with the inner hole and positioning end face of a workpiece to be machined; the power mechanism drives the ram, the sliding plate and the positioning element to move horizontally in a reciprocating manner and drives the cam to rotate synchronously, and the bow-shaped cutter holder swings along the hinged end vertically under the effect of the lever.
Description
Technical field
The present invention relates to a kind of device of the miniature workpiece inner hole key slot of planing.
Background technology
In machining, often have some small-sized cast iron covers, small-sized steel gear etc., its endoporus need to be processed keyway.Because endoporus is less and width of keyway is not identical yet, if adopt broaching processing, need customization plurality of specifications broaching tool, on broaching machine, tooling cost and work time cost are larger.For small lot batch manufacture, conventionally adopt shaping machine planing operation, knife bar is fixed on knife rest as cantilever support, particularly when inner hole of workpiece hour, knife bar too carefully can produce very large deformation, causes the two ends keyway degree of depth different; When knife bar distortion is too large, cutter cannot be cut workpiece at all.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of device of the miniature workpiece inner hole key slot of planing is provided, adopts planing operation principle, and knife bar adopts two ends fixed form, greatly improve process system rigidity, can be used for the processing of reduced size inner hole key slot.
For achieving the above object, the present invention adopts following technical proposals:
A kind of device of the miniature workpiece inner hole key slot of planing, comprise an arc knife rest, described arc knife rest one end bottom-hinged is on fixture or ground, the arc knife rest other end is unsettled, and be connected with a cam by lever, the unsettled horizontally disposed knife bar in a middle part is installed on arc knife rest top, and cutter is installed on knife bar; Described cam is connected with the driving wheel of actuating unit by Timing Belt, the hinged connecting rod of eccentric position of described driving wheel, the connecting rod other end and a horizontally disposed ram one end are hinged, the ram other end is fixed on the slide plate case of vertical setting, in slide plate case, be provided with up-down adjustment mechanism, slide plate case one side is provided with and can slides up and down the connected slide plate of Qie Yu up-down adjustment mechanism along slide plate case, slide plate one side is fixed with setting element, and the location basal plane of described setting element matches with endoporus and the location end face of required processing work respectively; Actuating unit drives ram, slide plate and setting element horizontal reciprocating to move, and actuating unit Timing Belt moving cam rotates, and under leverage, arc knife rest swings up and down along hinged end.
Bottom, described arc knife rest one end is installed on fixture or ground by turning cylinder and positioning sleeve.When tool dimension is different from width of keyway, tool position can suitably regulate, and by changing arc knife rest at turning cylinder axial location, by two positioning sleeves, is fixed, to adapt to different in width keyway demand.
Described knife bar two ends are fixedly installed on arc knife rest, and knife bar middle part is unsettled.Knife bar adopts two ends to fix and strain, and knife bar rigidity is large, is conducive to machining, raises the efficiency; Can process the aperture keyway that general planer cannot be processed.
Described cam is fixed on fixture or ground.
Described lever one end is installed in the cam path of cam by roller, the other end is fixedly installed in arc knife rest one end, and this link of arc knife rest is provided with a rectangular slotted eye, lever is secured by bolts in the rectangular slotted eye of this end, and lever middle part is installed on base by turning cylinder.
Described cam path is connected to form by two sections of different radii circular arcs and changeover portion.
Described Timing Belt is synchronous cog belt.
Described actuating unit comprises headstock and is arranged on the driving wheel on headstock output shaft, is provided with motor in headstock.
Described ram is installed in horizontal sliding sleeve.Ram can move back and forth along sliding sleeve.
Described up-down adjustment mechanism comprises the leading screw being arranged in slide plate case and is positioned at the handwheel of slide plate case outer upper, and handwheel is connected with leading screw upper end, and leading screw passes and extend into the slide plate side top nut in slide plate case.Rotate handwheel, by the threaded engagement of leading screw and nut, can adjust slide plate and move up and down along slide plate case.
The groove that the Kong Zhongyou of described setting element allows cutter to pass through.
The present invention adopts planing operation principle, and knife bar adopts two ends fixed form, greatly improves process system rigidity, can be used for the processing of reduced size inner hole key slot.The present invention, for processing the endoporus keyway of planing, comprises main motion, workpiece location, tool feeding motion, the motion of cutter cutter relieving and the adjustment of knife rest position.
1) main motion
After slowing down, headstock drives driving wheel to rotate, and connecting rod drives ram linear reciprocating motion.In traditional planing operation, cutter is done straight reciprocating motion, and in this device, ram movement drives the relative tool motion of workpiece, so this motion is the main motion of machining.Workpiece is done rectilinear motion and cutter transfixion, and this is also the place different from traditional planing operation, and this planing operation mode is particularly suitable for processing keyway in miniature workpiece endoporus.
2) workpiece location
Setting element is fixed on slide plate.Inner hole of workpiece and location end face coordinate with the location basal plane of setting element respectively, and by clamp mechanism by Workpiece clamping.Setting element has groove in hole, allows cutter to pass through.Different according to inner hole of workpiece, change setting element.
3) feed motion
Be subject to the restrictions such as knife bar rigidity, cutter intensity, the keyway degree of depth needs repeatedly feed to complete.Tool feeding motion is by manually completing.With hand, rotate handwheel, screw-nut body drives slide plate, and workpiece radial displacement realizes the Tool in Cutting degree of depth and changes.
4) cutter cutter relieving motion
When cutter backhaul is not done cutting movement, cutter leaves machined surface, reduces cutter wear of the tool flank and scratches machined surface.Between driving wheel and cam, being Synchronous Belt Drives, is i.e. interior contact between main motion and cutter relieving motion.The cam path of cam is comprised of two sections of different radii circular arcs and changeover portion.Be fixed bias circuit in the middle of lever, one end roller is in cam path, and the other end prizes the moving axis swing that rotates of arc knife rest.When ram moves to machining direction, arc knife rest is horizontal knife bar; During ram counter motion, lever makes arc knife rest rotate moving axis to lower swing, and cutter and machined surface disengage.
5) knife rest position is adjusted
The adjustment of knife rest position adapts to different in width keyway.When tool dimension is identical with width of keyway, arc knife rest position does not need to adjust; When tool dimension is different from width of keyway, tool position can suitably regulate.Change arc knife rest at turning cylinder axial location, fixing by positioning sleeve (2).
Technical characterstic of the present invention is:
1) moving component is different from traditional planing operation: workpiece is done straight reciprocating motion, cutter transfixion in machining.
2) knife bar is not that cantilever support is installed, but adopts two ends to fix and strain, and knife bar rigidity is large, is conducive to machining, raises the efficiency; Can process the aperture keyway that general planer cannot be processed.
3) workpiece counter motion, while not making cutting movement, cutter can automatic withdrawal, reduces knife face and machined surface friction after cutter, reduces surface roughness, improves cutter life.
4) processing width of keyway can regulate, and one can process multiple width specifications keyway cutter.
Accompanying drawing explanation
Fig. 1 is one embodiment of the present of invention structural representations;
Wherein 1 arc knife rest, 2. positioning sleeve, 3. turning cylinder, 4. setting element, 5. knife bar, 6. cutter, 7. slide plate, 8. leading screw, 9. handwheel, 10. ram, 11. connecting rods, 12. driving wheels, 13. headstocks, 14. Timing Belts, 15. cams, 16. levers, 17 packing rings, 18. nuts, 19. slide plate casees, 20. workpiece.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1, the plane device of miniature workpiece inner hole key slot, comprises an arc knife rest 1, and described arc knife rest 1 bottom, one end crosses turning cylinder 3 and positioning sleeve 2 is articulated with on fixture or ground, arc knife rest 1 other end is unsettled, and is connected with a cam 15 by lever 8.When tool dimension is different from width of keyway, tool position can suitably regulate, by changing arc knife rest 1 at turning cylinder 3 axial locations, fixing by two positioning sleeves 2, to adapt to different in width keyway demand.
The unsettled horizontally disposed knife bar 5 in a middle part is installed on arc knife rest 1 top, and knife bar 5 two ends are fixedly installed on arc knife rest 1, and wherein one end is fixed on arc knife rest 1 by packing ring 17 and nut 18, and cutter 6 is installed on knife bar 5; Knife bar 5 adopts two ends to fix and strain, and knife bar 5 rigidity are large, are conducive to machining, raise the efficiency; Can process the aperture keyway that general planer cannot be processed.
Cam 15 is fixed on fixture or ground, and cam 15 is connected with the driving wheel 12 of actuating unit by synchronous cog belt.Actuating unit comprises headstock 13 and is arranged on the driving wheel 12 on headstock 13 output shafts, in headstock 13, is provided with motor.
Lever 8 one end are installed in the cam path of cam 15 by roller, the other end is fixedly installed in arc knife rest 1 one end, and this link of arc knife rest 1 is provided with a rectangular slotted eye, lever 8 is secured by bolts in the rectangular slotted eye of this end, by adjusting the position of lever 8 in this rectangular slotted eye, realize arc knife rest 1 along turning cylinder 3 amplitude of fluctuation sizes, lever 8 middle parts are installed on base by turning cylinder.Cam path is connected to form by two sections of different radii circular arcs and changeover portion.
The hinged connecting rod 11 of eccentric position of driving wheel 12, connecting rod 11 other ends and horizontally disposed ram 10 one end are hinged, and ram 10 other ends are fixed on slide plate case 19 1 sides of vertical setting; Ram 10 is installed in horizontal sliding sleeve, and ram 10 can move back and forth along sliding sleeve.
In slide plate case 19, be provided with up-down adjustment mechanism, slide plate case 19 opposite sides are provided with and can slide up and down the connected slide plate 7 of Qie Yu up-down adjustment mechanism along slide plate case 19.Up-down adjustment mechanism comprises the leading screw 8 being arranged in slide plate case and the handwheel 9 that is positioned at slide plate case 19 outer upper, and handwheel 9 is connected with leading screw 8 upper ends, and leading screw 8 is through extending into the slide plate side top nut in slide plate case 19.Rotate handwheel 9, the threaded engagement by leading screw 8 with nut, can adjust slide plate 7 and move up and down along slide plate case.
Slide plate 7 one sides are fixed with setting element 4, and the location basal plane of described setting element 4 matches with endoporus and the location end face of required processing work 20 respectively; The groove that the Kong Zhongyou of setting element 4 allows cutter to pass through.
Actuating unit drives ram 10, slide plate case 19, slide plate 7 and setting element 4 horizontal reciprocatings to move, and actuating unit Timing Belt moving cam 15 rotates, and under lever 16 effects, arc knife rest 1 swings up and down along the turning cylinder 3 of hinged end.
The present invention is for processing the endoporus keyway of planing, and its transmission system and part-structure are shown in Fig. 1.Comprise main motion, workpiece localization method, tool feeding motion, the motion of cutter cutter relieving and knife rest location regulation method etc.
1) main motion
After slowing down, headstock 13 drives driving wheel 12 to rotate, and connecting rod 11 drives ram 10 linear reciprocating motions.In traditional planing operation, cutter is done straight reciprocating motion, and in this device, ram movement drives the relative tool motion of workpiece, so this motion is the main motion of machining.Workpiece is done rectilinear motion and cutter transfixion, and this is also the place different from traditional planing operation.
2) workpiece location
Setting element 4 is fixed on slide plate 7.Inner hole of workpiece and location end face coordinate with the location basal plane of setting element 4 respectively, and by clamp mechanism by Workpiece clamping.Setting element has groove in hole, allows cutter to pass through.Different according to inner hole of workpiece, change setting element 4.
3) feed motion
Be subject to the restrictions such as knife bar rigidity, cutter intensity, the keyway degree of depth needs repeatedly feed to complete.Tool feeding motion is by manually completing.With hand, rotate handwheel 9, screw-nut body 8 drives slide plate 7, and workpiece radial displacement realizes the Tool in Cutting degree of depth and changes.
4) cutter cutter relieving motion
When cutter backhaul is not done cutting movement, cutter leaves machined surface, reduces cutter wear of the tool flank and scratches machined surface.Between driving wheel 12 and cam 15, being Synchronous Belt Drives, is i.e. interior contact between main motion and cutter relieving motion.Cam 15 cam paths are comprised of two sections of different radii circular arcs and changeover portion.In the middle of lever 16, be fixed bias circuit, one end roller is in cam path, and the other end prizes moving axis 3 swings that rotate of arc knife rest 1.When ram 10 moves to machining direction, arc knife rest 1 is horizontal knife bar 5; During ram 10 counter motion, lever 16 makes arc knife rest 1 rotate moving axis 3 to lower swing, and cutter 6 disengages with machined surface.
5) knife rest position is adjusted
The adjustment of knife rest position adapts to different in width keyway.When tool dimension is identical with width of keyway, arc knife rest 1 position does not need to adjust; When tool dimension is different from width of keyway, tool position can suitably regulate.Change arc knife rest 1 at turning cylinder 3 axial locations, fixing by positioning sleeve 2 (2).
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (10)
1. the device of miniature workpiece inner hole key slot of planing, it is characterized in that, comprise an arc knife rest, described arc knife rest one end bottom-hinged is on fixture or ground, the arc knife rest other end is unsettled, and be connected with a cam by lever, the unsettled horizontally disposed knife bar in a middle part is installed on arc knife rest top, and cutter is installed on knife bar; Described cam is connected with the driving wheel of actuating unit by Timing Belt, the hinged connecting rod of eccentric position of described driving wheel, the connecting rod other end and a horizontally disposed ram one end are hinged, the ram other end is fixed on the slide plate case of vertical setting, in slide plate case, be provided with up-down adjustment mechanism, slide plate case one side is provided with and can slides up and down the connected slide plate of Qie Yu up-down adjustment mechanism along slide plate case, slide plate one side is fixed with setting element, and the location basal plane of described setting element matches with endoporus and the location end face of required processing work respectively; Actuating unit drives ram, slide plate and setting element horizontal reciprocating to move, and actuating unit Timing Belt moving cam rotates, and under leverage, arc knife rest swings up and down along hinged end.
2. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, bottom, described arc knife rest one end is installed on fixture or ground by turning cylinder and positioning sleeve.
3. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, described knife bar two ends are fixedly installed on arc knife rest, and knife bar middle part is unsettled.
4. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, described cam is fixed on fixture or ground.
5. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, it is characterized in that, described lever one end is installed in the cam path of cam by roller, the other end is fixedly installed in arc knife rest one end, and this link of arc knife rest is provided with a rectangular slotted eye, lever is secured by bolts in the rectangular slotted eye of this end, and lever middle part is installed on base by turning cylinder.
6. the device of planing miniature workpiece inner hole key slot as claimed in claim 5, is characterized in that, described cam path is connected to form by two sections of different radii circular arcs and changeover portion.
7. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, described actuating unit comprises headstock and is arranged on the driving wheel on headstock output shaft, is provided with motor in headstock.
8. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, described ram is installed in horizontal sliding sleeve.
9. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, it is characterized in that, described up-down adjustment mechanism comprises the leading screw being arranged in slide plate case and is positioned at the handwheel of slide plate case outer upper, handwheel is connected with leading screw upper end, and leading screw is through extending into the slide plate side top nut in slide plate case.
10. the device of planing miniature workpiece inner hole key slot as claimed in claim 1, is characterized in that, the groove that the Kong Zhongyou of described setting element allows cutter to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480098.5A CN104191025B (en) | 2014-09-17 | 2014-09-17 | The device of planing miniature workpiece inner hole key slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480098.5A CN104191025B (en) | 2014-09-17 | 2014-09-17 | The device of planing miniature workpiece inner hole key slot |
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| Publication Number | Publication Date |
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| CN104191025A true CN104191025A (en) | 2014-12-10 |
| CN104191025B CN104191025B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410480098.5A Expired - Fee Related CN104191025B (en) | 2014-09-17 | 2014-09-17 | The device of planing miniature workpiece inner hole key slot |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104897445A (en) * | 2015-05-26 | 2015-09-09 | 国网山东省电力公司电力科学研究院 | Automatic material contracting divider |
| 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 |
| CN108583127A (en) * | 2018-04-28 | 2018-09-28 | 重庆婉婷科技发展有限公司 | A kind of sculpture device |
| CN109249073A (en) * | 2018-11-20 | 2019-01-22 | 陕西海力特精密机械有限公司 | Cam link swings relieving mechanism |
| CN109807382A (en) * | 2019-03-28 | 2019-05-28 | 中国人民解放军陆军军事交通学院镇江校区 | A kind of shaping machine of route-variable speed ratio factor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897445A (en) * | 2015-05-26 | 2015-09-09 | 国网山东省电力公司电力科学研究院 | Automatic material contracting divider |
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| 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 |
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| CN109249073A (en) * | 2018-11-20 | 2019-01-22 | 陕西海力特精密机械有限公司 | Cam link swings relieving mechanism |
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| CN109807382A (en) * | 2019-03-28 | 2019-05-28 | 中国人民解放军陆军军事交通学院镇江校区 | A kind of shaping machine of route-variable speed ratio factor |
| 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 | Variable stroke speed ratio coefficient's shaper |
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| CN104191025B (en) | 2016-06-08 |
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Granted publication date: 20160608 Termination date: 20200917 |