CN2696747Y - Automatic feeding mechanism for bench drill - Google Patents
Automatic feeding mechanism for bench drill Download PDFInfo
- Publication number
- CN2696747Y CN2696747Y CN 200420039119 CN200420039119U CN2696747Y CN 2696747 Y CN2696747 Y CN 2696747Y CN 200420039119 CN200420039119 CN 200420039119 CN 200420039119 U CN200420039119 U CN 200420039119U CN 2696747 Y CN2696747 Y CN 2696747Y
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- clutch
- worm
- shaft
- fixed
- gear
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic feeding mechanism for bench drill which belongs to the technology of bench drill, composed of a worm, a belt roller, a driving belt, a worm wheel, a worm wheel shaft and a shaft block arranged on a spindle gearing through an axletree, a driving bevel gear, a driven bevel pinion and a worm shaft bonded on the ends of the worm wheel shaft, together with a gear shaft, a torsional spring and a feed clutch meshed with the racks on a drill press socket. The utility model also comprises a clutch worm wheel, a clutch boosting sleeve, keys, a hand shank seat, a rake pin, a fixed plate and a cup head pin fixed on the clutch boosting sleeve, a feed lever, a scale ring and an overrunning coupler. The flume of the overrunning coupler is provided with a ball bearing and a spring that can push the ball bearing to the lateral side. The outside of the spindle gearing arranged at the upper part of the clutch boosting sleeve is provided with a '0' scale. The outside of the scale ring has number of division marking feeding depth. The utility model can achieve automatic feeding and has accuracy of drilling depth with high automatization. The clutch can carry on free play and unloading, which avoids the working pieces from being damaged. The utility model can be applied to the bench drill widely.
Description
Technical field
The utility model belongs to the bench drill technical field, more particularly relates to the improvement of the autofeed mechanism of bench drill.
Background technology
Present bench drill is by base, be installed in the column on the base, be installed in the headstock on the column, be installed in the motor on the headstock, be installed in the sleeve on the headstock, be installed on the headstock feed mechanism with the outer tooth bar engagement of sleeve, borrow bearing to be installed in the sleeve and the main shaft of the wounded in the battle key of afterbody, be fixed on motor the axle on driving cone pulley, borrow bearing to be installed on the headstock and with the driven cone pulley of the spline engagement of spline and main shaft, the workbench that is installed in the driving belt on driving cone pulley and the driven cone pulley and is installed on the column is formed.Most bench drill there is no autofeed mechanism, only with manual feed.Its shortcoming one is accurately to grasp drilling depth, the 2nd, and labour intensity is bigger.
Traditional bench drill also has band autofeed mechanism.What the clutch of its autofeed mechanism was leaned on is helical gear and rachet clutch.This clutch belongs to positive clutch, and after the clutch that closes, even the excess load overload, the bench drill work of also can only " confronting the tough with toughnees " on earth.Therefore, usually cause the damage of bench drill parts or workpiece.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of autofeed mechanism of bench drill is provided, can accurately grasp drilling depth, the automaticity height, labour intensity is low, and its propelling is enclosed within the off-load of the time can skidding of excess load overload, avoids the damage of parts or workpiece.
In order to achieve the above object, the utility model comprises with bearing and is installed in worm screw on the headstock, be fixed on the belt pulley on the worm screw, be installed in the driven cone pulley of bench drill and the driving belt on the belt pulley, worm gear with worm engaging, be fixed on worm-wheel shaft on the worm gear with key, take up worm-wheel shaft and be fixed on bearing block on the headstock, be bonded in the driving bevel gear of worm-wheel shaft end, driven bevel pinion with the driving bevel gear engagement, be fixed on the driven bevel pinion and be installed in worm shaft on the headstock with key with bearing, be installed on the headstock and the middle gear shaft that has with the tooth bar meshed gears of bench drill sleeve with bearing, one end is fixed on the other end on the headstock and is fixed on torsion spring on the gear shaft, be installed on gear shaft and the headstock and with the feed clutch of worm shaft engagement.The feed clutch comprises being sleeved on the gear shaft and meshes the clutch worm gear that an end has internal taper hole with worm shaft, being sleeved on an end on the gear shaft has the clutch that the outer cone that can cooperate with internal taper hole and the featherway other end have annular groove and advances cover, be fixed on the gear shaft and be arranged in the key that clutch advances the featherway of cover, be fastened on the handle set of the gear shaft other end, be fixed on and be positioned at the gradient pin that clutch advances cover top on the headstock, be fixed on clutch and advance the fixed head that puts, be fixed on its position cuphead pilotage corresponding on the fixed head with the gradient pin, be installed in the groove of handle set its inner feed handle that inserts in the annular groove that clutch advances cover with straight pin, be sleeved on clutch advance the calibration loop of cover and fixed head outside and be installed in the calibration loop endoporus and the handle set shaft shoulder between skewed slot in freewheel clutch.Ball is installed in the skewed slot of freewheel clutch and ball is pushed to the spring of side.Be positioned at clutch on the headstock and advance the outside on cover top to have " 0 " scale, the calibration loop outside has the number of division that indicates depth of cut.
The utility model is work like this: the motor of starting bench drill, and motor just drives driving cone pulley, driving belt, driven cone pulley, main shaft successively, makes main axis rotation, and bench drill performs boring and prepares.Determine depth of cut according to drilling depth then, and the calibration loop that turns clockwise is to the number of division corresponding with depth of cut.Outwards pull the feed handle subsequently and advance cover inwardly to push away clutch, make it to engage, also be about to the feed clutch and close with the clutch worm gear.So, driven cone pulley just successively the driving belt of drive installation on driven cone pulley and belt pulley, worm screw, worm gear, worm-wheel shaft, driving bevel gear, driven bevel pinion, worm shaft, clutch worm gear, clutch advance the outer tooth bar of cover, gear shaft and sleeve, with sleeve together with axis feeding.During feed, gear shaft is rotated counterclockwise together with calibration loop, fixed head and cuphead pilotage.When the feed end, calibration loop is multiple to " 0 " position, and cuphead pilotage is stepped back by the collision of gradient pin, drives clutch propelling cover and outwards moves and the disengagement of clutch worm gear, also is about to the feed clutch and breaks away from.Advance cover, handle set, the counter-rotating of feed handle to reset so the idle running of clutch worm gear, gear shaft drive clutch under the effect of torsion spring, the outer tooth bar of drive sleeve resets together with sleeve simultaneously.
The internal taper hole of clutch worm gear and the clutch that is mated advance cover outer cone from the locking angle≤8 °.The internal taper hole of this structure and the outer cone that is mated have desirable transmission effect.When the drilling excess load was transshipped, the damage of parts or workpiece was avoided in the off-load of can dallying again.Reliable safety again.
The feed handle has uniform 3.Any two feed handles all differ 120 °, and are easy to use.
Task of the present utility model comes to this and finishes.
The utility model provides a kind of autofeed mechanism of bench drill, and it can accurately grasp drilling depth, the automaticity height, and labour intensity is low, and the off-load of can dallying when excess load is transshipped of its clutch, avoids the damage of parts or workpiece.It can be widely used in the various bench drills.
Description of drawings
Fig. 1 is a partial sectional view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the partial enlarged drawing of Fig. 2.
Fig. 5 is the B-B cutaway view of Fig. 2.
Fig. 6 is that the A of Fig. 2 is to view.
The specific embodiment
Embodiment 1.A kind of autofeed mechanism of bench drill is as Fig. 1～shown in Figure 6.
It comprises with bearing 1 and is installed in worm screw 3 on the headstock 2, be fixed on the belt pulley 5 on the worm screw 3, be installed in the driving belt 7 on driven cone pulley 6 and the belt pulley 5, worm gear 4 with worm screw 3 engagements, be fixed on worm-wheel shaft 9 on the worm gear 4 with key 8, take up worm-wheel shaft 9 and be fixed on bearing block 10 on the headstock 2, be bonded in the driving bevel gear 11 of worm-wheel shaft end, driven bevel pinion 12 with driving bevel gear 11 engagements, be fixed on the driven bevel pinion 12 and be installed in worm shaft 13 on the headstock 2 with key 30 with bearing 31, be installed on the headstock 2 and the middle gear shaft 15 that has with the tooth bar meshed gears 14 of bench drill sleeve 32 with bearing 16, one end is fixed on the other end on the headstock 2 and is fixed on torsion spring 17 on the gear shaft 15, be installed on gear shaft 15 and the headstock 2 and with the feed clutch of worm shaft 13 engagements.The feed clutch comprises and is sleeved on the gear shaft 15 the clutch worm gear 18 that has internal taper hole 33 with worm shaft 13 engagement one ends, being sleeved on an end on the gear shaft 15 has the clutch that the outer cone 34 that can cooperate with internal taper hole 33 and featherway 35 other ends have annular groove 36 and advances cover 20, be fixed on the gear shaft 15 and be arranged in the key 19 that clutch advances the featherway 35 of cover 20, be fastened on the handle set 22 of gear shaft 15 other ends with screw 21, be fixed on and be positioned at the gradient pin 23 that clutch advances cover 20 tops on the headstock 2, be fixed on clutch and advance the fixed head 24 that overlaps on 20, be fixed on the corresponding cuphead pilotage 25 in its position and gradient pin on the fixed head 24 23, be installed in the groove 37 of handle set 22 its inner feed handle 27 that inserts in the annular groove 36 that clutch advances cover 20 with straight pin 26, be sleeved on clutch advance the calibration loop 38 of cover 20 and fixed head 24 outsides and be installed in the endoporus of calibration loop 38 and the shaft shoulder of handle set 22 between skewed slot 39 in freewheel clutch.Ball 28 is installed in the skewed slot 39 of freewheel clutch and ball 28 is pushed to the spring 29 of side.
Shown in Figure 5, the calibration loop 38 of freewheel clutch when rotating, is pushed ball 28 to inboard along A, and compression spring 29, calibration loop 38 just surmount the shaft shoulder rotation of handle set 22.In contrast, the calibration loop of freewheel clutch 38 contrary A push ball 28 to the outside when rotation, and compression spring 29 opens, and calibration loop 38 just drives handle set 22 (the shaft shoulder) rotation together.
Shown in Figure 6, be positioned at calibration loop 38 outsides that outside that clutch advances cover 20 tops has " 0 " scale 40 on the headstock 2 and have the number of division 41 that indicates depth of cut.
The internal taper hole 33 of clutch worm gear 18 and the clutch that is mated advance cover 20 outer cone 34 from the locking angle≤8 °.Feed handle 27 has 3 by circumference uniform distribution.
But embodiment 1 autofeed, it can accurately grasp drilling depth.The automaticity height, labour intensity is low, and the off-load of can dallying when excess load is transshipped of its clutch, can avoid the damage of parts or workpiece.It can be widely used in the various bench drills.
Claims (3)
1. the autofeed mechanism of a bench drill, it comprises with bearing and is installed in worm screw on the headstock, be fixed on the belt pulley on the worm screw, be installed in the driving belt on driven cone pulley and the belt pulley, worm gear with worm engaging, be fixed on worm-wheel shaft on the worm gear with key, take up worm-wheel shaft and be fixed on bearing block on the headstock, be bonded in the driving bevel gear of worm-wheel shaft end, driven bevel pinion with the driving bevel gear engagement, be fixed on the driven bevel pinion and be installed in worm shaft on the headstock with key with bearing, be installed on the headstock and the middle gear shaft that has with the tooth bar meshed gears of drilling machine sleeve with bearing, one end is fixed on the other end on the headstock and is fixed on torsion spring on the gear shaft, be installed on gear shaft and the headstock and with the feed clutch of worm shaft engagement, it is characterized in that said feed clutch comprises being sleeved on the gear shaft meshes the clutch worm gear that an end has internal taper hole with worm shaft, being sleeved on an end on the gear shaft has the clutch that the outer cone that can cooperate with internal taper hole and the featherway other end have annular groove and advances cover, be fixed on the gear shaft and be arranged in the key that clutch advances the featherway of cover, be fastened on the handle set of the gear shaft other end, be fixed on and be positioned at the gradient pin that clutch advances cover top on the headstock, be fixed on clutch and advance the fixed head that puts, be fixed on its position cuphead pilotage corresponding on the fixed head with the gradient pin, be installed in the groove of handle set its inner feed handle that inserts in the annular groove that clutch advances cover with straight pin, be sleeved on clutch advance the calibration loop of cover and fixed head outside and be installed in the calibration loop endoporus and the handle set shaft shoulder between skewed slot in freewheel clutch, ball is installed in the skewed slot of freewheel clutch and ball is pushed to the spring of side, be positioned at clutch on the headstock and advance the outside on cover top to have " 0 " scale, the calibration loop outside has the number of division that indicates depth of cut.
2. according to the autofeed mechanism of the described bench drill of claim 1, it is characterized in that the internal taper hole of said clutch worm gear and the clutch that is mated advance cover outer cone from the locking angle≤8 °.
3. according to the autofeed mechanism of claim 1 or 2 described bench drills, it is characterized in that said feed handle has uniform 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039119 CN2696747Y (en) | 2004-03-12 | 2004-03-12 | Automatic feeding mechanism for bench drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039119 CN2696747Y (en) | 2004-03-12 | 2004-03-12 | Automatic feeding mechanism for bench drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696747Y true CN2696747Y (en) | 2005-05-04 |
Family
ID=34773789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420039119 Expired - Fee Related CN2696747Y (en) | 2004-03-12 | 2004-03-12 | Automatic feeding mechanism for bench drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696747Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028759A (en) * | 2012-12-19 | 2013-04-10 | 南通第五机床有限公司 | Automatic feeding device of drilling machine |
| CN104308225A (en) * | 2014-09-17 | 2015-01-28 | 济南大学 | Bench drilling machine with function of automatic feeding |
| CN105171501A (en) * | 2015-10-12 | 2015-12-23 | 四川大学 | Precise self-locking feeding device |
| CN108868581A (en) * | 2018-05-31 | 2018-11-23 | 安徽三山机械制造有限公司 | A kind of drill bit mechanical clutch type rig |
| CN109227216A (en) * | 2018-09-29 | 2019-01-18 | 高邮市鑫顺机械制造有限公司 | A kind of the lifting handwheel structure and its operating method of bench drill |
-
2004
- 2004-03-12 CN CN 200420039119 patent/CN2696747Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028759A (en) * | 2012-12-19 | 2013-04-10 | 南通第五机床有限公司 | Automatic feeding device of drilling machine |
| CN104308225A (en) * | 2014-09-17 | 2015-01-28 | 济南大学 | Bench drilling machine with function of automatic feeding |
| CN105171501A (en) * | 2015-10-12 | 2015-12-23 | 四川大学 | Precise self-locking feeding device |
| CN108868581A (en) * | 2018-05-31 | 2018-11-23 | 安徽三山机械制造有限公司 | A kind of drill bit mechanical clutch type rig |
| CN109227216A (en) * | 2018-09-29 | 2019-01-18 | 高邮市鑫顺机械制造有限公司 | A kind of the lifting handwheel structure and its operating method of bench drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 Termination date: 20100312 |