CN103170686A - Automatic tapping machine power head capable of fast feed and fast return - Google Patents
Automatic tapping machine power head capable of fast feed and fast return Download PDFInfo
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- CN103170686A CN103170686A CN201210157689XA CN201210157689A CN103170686A CN 103170686 A CN103170686 A CN 103170686A CN 201210157689X A CN201210157689X A CN 201210157689XA CN 201210157689 A CN201210157689 A CN 201210157689A CN 103170686 A CN103170686 A CN 103170686A
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Abstract
An automatic tapping machine power head capable of fast feed and fast return comprises a main shaft box and a main shaft disposed in the main shaft box. The main shaft comprises an outer spline shaft and an inner spline shaft, wherein the head of the outer spline shaft extends into the tail of the inner spline shaft, and the inner spline shaft and the outer spline shaft are connected through an inner spline and an outer spline between the shafts. A guide shaft is sleeved outside the outer spline shaft, the inner spline shaft is connected into the head of the guide shaft through a bearing, a piston is installed in the middle of the outer side of the guide shaft, the piston completely isolates a sealed cavity axially formed on the main shaft box into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are respectively connected with an air source through respective air channels. A limit support is connected with the upper portion of the outer side of the guide shaft, the limit support can be connected with a main shaft tapping feed mechanism in a clamping mode, and a movement gap slightly smaller than the idle stroke of the tapping machine is reserved at the position of the clamping connection between the limit support and the main shaft tapping feed mechanism. The automatic tapping machine power head capable of fast feed and fast return is capable of achieving fast feed and fast return of the power head in the idle stroke, and the tapping efficiency of the tapping machine can be greatly improved.
Description
Technical field
The present invention relates to a kind of desk-top automatic tapping machine, but a kind of automatic tapping machine unit head of fast forwarding and fast rewinding particularly.
Background technology
the unit head of existing tapping machine generally is the leading screw type structure, be CN201940711U as publication number, patent name is the automatic attack plane of a kind of leading screw type, its structure comprises a main spindle box, be provided with one in main spindle box and be used for the main shaft that tapping is used, main shaft tail connects a driving screw, driving screw is meshed with nut on being fixed on main spindle box and is connected, when work, the rotation of main shaft drives the driving screw synchronous rotary of afterbody, because the pitch of nut sets in advance, driving screw will axially move on nut with fixing pitch T when rotating, and then the main shaft that drive and driving screw are fixed together is with shifting movement on fixing pitch, realize the self-tapping processing of unit head.
At this, because the axially movable nut pitch of above restriction driving screw is fixed, be also changeless thereby make unit head in the pitch that tapping adds man-hour.And in reality processing, for ease of clamping workpiece, general tapping-head and treat all to leave between the tapping workpiece margin of operation of one section idle stroke, just carry out tapping processing namely only cover this section idle stroke when tapping begins after, simultaneously when withdrawing resets, also only retreated this section idle stroke and reserve margin of operation and just can carry out blanking and the replacing of workpiece.But the mode that moves axially of existing leading screw type, making moving axially in whole feeding and withdrawing reseting procedure of main shaft is all to keep the same speed to move with tapping process, the tapping efficient that this has limited tapping machine greatly can't satisfy the needs of actual processing.
Summary of the invention
For the problems referred to above, but the present invention has designed a kind of unit head of automatic tapping machine of fast forwarding and fast rewinding, and it can realize rapid feed and the rapid return of unit head in idle stroke, can greatly promote the tapping efficient of tapping machine.
For achieving the above object, the present invention is by the following technical solutions:
But a kind of automatic tapping machine unit head of fast forwarding and fast rewinding, comprise main spindle box and be arranged on the interior main shaft of main spindle box, it is characterized in that: described main shaft comprises male splined shaft and female splined shaft, and wherein the head of male splined shaft gos deep into the interior inside and outside spline joint that also passes through between the two of afterbody of female splined shaft; Described male splined shaft is arranged with an axis of guide outward, connecting female splined shaft by bearing in axis of guide head, the outer middle side part of the axis of guide is installed a piston, described piston is divided into upper chamber and lower chambers fully to the sealed chamber that one on main spindle box axially arranges, and upper and lower chamber is connected with source of the gas by gas circuit separately; Described axis of guide outer upper connects a limiting bracket, but limiting bracket engagement connection spindle tapping feed mechanism, and engagement connection between the two leaves the free gap that is slightly less than the tapping machine idle stroke.
Further, above-mentioned spindle tapping feed mechanism comprises that one arranges and can advise axle by the tooth that transmission mechanism drives by main shaft with main shaft is parallel, tooth rule outer shaft sleeve is established a tooth rule cover, tooth rule cover is advised axle by being connected with a joggle with tooth, and being provided with an annular boss outside tooth rule cover, this annular boss can hold mutually with described limiting bracket when the axis of guide glides.
Further, above-mentioned transmission mechanism comprises a pinion, a gear wheel and gear shaft, and wherein gear wheel and pinion are intermeshing, and pinion is connected and is arranged on the male splined shaft afterbody, and gear wheel is connected and is positioned at the gear shaft afterbody; Described gear shaft middle part is connected on main spindle box by bearing, and gear shaft head and described tooth rule axle are connected.
Further, above-mentioned male splined shaft afterbody also is provided with a driven pulley, and driven pulley connects the driving wheel of power motor by a Timing Belt.
Under original state, the piston on the axis of guide is arranged in the topmost of airtight chamber of the axial setting of main spindle box, this moment limiting bracket with the annular boss in the tooth rule cover outside between the free gap maximum, both are in released state
when clamping workpiece is complete when starting working, at first toward upper chamber's inflation, piston is glided fast, and then drive that fairlead moves down fast and the fast feed that realizes the tapping idle stroke, this process until the annular boss in limiting bracket and the tooth rule cover outside hold mutually, continue afterwards the inflation toward upper chamber, and the startup power motor drives the driving wheel rotation, and then drive driven pulley by Timing Belt, driving the male splined shaft that is connected with driven pulley rotates, at this, the rotation of male splined shaft drives the female splined shaft rotation by the connection of interior external splines on the one hand, the rotation of male splined shaft realizes the rotation of tooth rule axle by transmission mechanism on the other hand, the relative tooth rule of tooth rule cover axle is moved down, the constraint of limiting bracket simultaneously is disengaged, continue to pour under compressed-air actuated effect in upper chamber and synchronously move down, and drive female splined shaft by fairlead and carry out tapping processing.
above process is until workpiece is processed completes, upper chamber stops inflation afterwards, the power motor counter-rotating, drive tooth rule axle backward rotation, realizing that tooth rule cover moves up resets, and tooth rule cover on move the drive axis of guide and female splined shaft carried out withdrawing, when cutter head is completed when withdrawing from from workpiece, stopping power motor rotating, tooth rule cover stops mobile, pour compressed air toward bottom chamber simultaneously, move on the drive piston is rapid and realize rapid return, until get back to initial position, this moment, limiting bracket separated with the annular boss that tooth is advised outside overlapping once more, for tapping is next time processed ready.
To sum up, the present invention has realized rapid feed and the rapid return of unit head in idle stroke, can promote exponentially the tapping efficient of tapping machine.
Description of drawings
Fig. 1, structural representation of the present invention;
The local enlarged diagram of A section in Fig. 2, Fig. 1 of the present invention.
The specific embodiment
As illustrated in fig. 1 and 2, but a kind of automatic tapping machine unit head of fast forwarding and fast rewinding comprises main spindle box 1 and the main shaft that is arranged in main spindle box, and described main shaft comprises male splined shaft 21 and female splined shaft 22.
Wherein the head of male splined shaft 21 gos deep into the interior inside and outside spline joint that also passes through between the two of afterbody of female splined shaft 22.Male splined shaft 21 afterbodys are provided with a driven pulley 3, and driven pulley 3 connects the driving wheel 51 of power motor 5 by a Timing Belt 4.
The outer axis of guide 6 that is arranged with of described male splined shaft 21, connecting female splined shaft 22 by bearing in the axis of guide 6 heads, the outer middle side part of the axis of guide 6 is installed a piston 61, described piston 61 is divided into upper chamber 11 and lower chambers 12 fully to the sealed chamber that one on main spindle box 1 axially arranges, upper chamber 11 is connected with source of the gas by gas circuit 111, and lower chambers 12 is connected with source of the gas by gas circuit 121.
The described axis of guide 6 outer upper connect a limiting bracket 62, and limiting bracket 62 connects the spindle tapping feed mechanism, and engagement connection between the two leaves the free gap that is slightly less than the tapping machine idle stroke.
In the present embodiment, the spindle tapping feed mechanism comprises that one arranges and can advise axle 71 by the tooth that transmission mechanism drives by main shaft with main shaft is parallel, the outer sheathed tooth rule cover 72 of tooth rule axle 71, tooth rule cover 72 is advised axle 71 by being connected with a joggle with tooth, and tooth rule cover 72 outsides are provided with an annular boss 721, and this annular boss 721 can hold mutually with described limiting bracket 62 when the axis of guide 6 glides.
In the present embodiment, described transmission mechanism comprises a pinion 81, a gear wheel 82 and gear shaft 83, and wherein gear wheel 82 is intermeshing with pinion 81, and pinion 81 is connected and is arranged on male splined shaft 21 afterbodys, and gear wheel 82 is connected and is positioned at gear shaft 83 afterbodys; Described gear shaft 83 middle parts are connected on main spindle box 1 by bearing, and axle 71 is coaxial is connected for gear shaft 83 heads and described tooth rule.
Under original state, the piston 61 on the axis of guide 6 is arranged in the topmost of airtight chamber of the axial setting of main spindle box 1, this moment limiting bracket 62 with the annular boss 721 in tooth rule cover 72 outsides between the free gap maximum, both are in released state
when clamping workpiece is complete when starting working, at first toward upper chamber's 11 inflations, piston 61 is glided fast, and then drive that fairlead 6 moves down fast and the fast feed that realizes the tapping idle stroke, this process until the annular boss 721 in limiting bracket 62 and tooth rule cover 72 outsides hold mutually, continue afterwards 11 inflations toward upper chamber, and startup power motor 5 drives driving wheels 51 rotations, and then drive driven pulley 3 by Timing Belt 4, driving the male splined shaft 21 that is connected with driven pulley 3 rotates, at this, the rotation of male splined shaft 21 drives female splined shaft 22 rotations by the connection of interior external splines on the one hand, the rotation of male splined shaft 21 realizes the rotation of tooth rule axle 71 by transmission mechanism on the other hand, the relative tooth rule axle 71 of tooth rule cover 72 is moved down, the constraint of limiting bracket 62 simultaneously is disengaged, continue to pour under compressed-air actuated effect in upper chamber 11 and synchronously move down, and carry out tapping processing by fairlead 6 drive female splined shafts 22.
above process is until workpiece is processed completes, upper chamber 11 stops inflation afterwards, power motor 5 counter-rotatings, drive tooth rule axle 71 backward rotation, realizing that tooth rule cover 72 moves up resets, and tooth rule cover 72 on move the drive axis of guide 6 and female splined shaft 22 carried out withdrawing, when cutter head is completed when withdrawing from from workpiece, stopping power motor 5 rotates, tooth rule cover 72 stops mobile, simultaneously pour compressed air in lower chambers 12, move on drive piston 61 is rapid and realize rapid return, until get back to initial position, this moment, limiting bracket 62 separated with the annular boss 721 in tooth rule cover 72 outsides once more, for tapping is next time processed ready.
To sum up, but the present invention is a kind of unit head of automatic tapping machine of fast forwarding and fast rewinding, and it can realize rapid feed and the rapid return of unit head in idle stroke, can greatly promote the tapping efficient of tapping machine.
The above, it is only better embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation know-why of the present invention still belongs in the scope of technical solution of the present invention any simple modification made for any of the above embodiments, equivalent variations or modification.
Claims (4)
1. but the automatic tapping machine unit head of a fast forwarding and fast rewinding, comprise main spindle box and be arranged on the interior main shaft of main spindle box, it is characterized in that: described main shaft comprises male splined shaft and female splined shaft, and wherein the head of male splined shaft gos deep into the interior inside and outside spline joint that also passes through between the two of afterbody of female splined shaft; Described male splined shaft is arranged with an axis of guide outward, connecting female splined shaft by bearing in axis of guide head, the outer middle side part of the axis of guide is installed a piston, described piston is divided into upper chamber and lower chambers fully to the sealed chamber that one on main spindle box axially arranges, and upper and lower chamber is connected with source of the gas by gas circuit separately; Described axis of guide outer upper connects a limiting bracket, but limiting bracket engagement connection spindle tapping feed mechanism, and engagement connection between the two leaves the free gap that is slightly less than the tapping machine idle stroke.
2. but the automatic tapping machine unit head of a kind of fast forwarding and fast rewinding as claimed in claim 1, it is characterized in that: described spindle tapping feed mechanism comprises that one arranges and can advise axle by the tooth that transmission mechanism drives by main shaft with main shaft is parallel, tooth rule outer shaft sleeve is established a tooth rule cover, tooth rule cover is advised axle by being connected with a joggle with tooth, and being provided with an annular boss outside tooth rule cover, this annular boss can hold mutually with described limiting bracket when the axis of guide glides.
3. but the automatic tapping machine unit head of a kind of fast forwarding and fast rewinding as claimed in claim 2, it is characterized in that: described transmission mechanism comprises a pinion, a gear wheel and gear shaft, wherein gear wheel and pinion are intermeshing, pinion is connected and is arranged on the male splined shaft afterbody, and gear wheel is connected and is positioned at the gear shaft afterbody; Described gear shaft middle part is connected on main spindle box by bearing, and gear shaft head and described tooth rule axle are connected.
But 4. the automatic tapping machine unit head of the described a kind of fast forwarding and fast rewinding of claim as arbitrary in claim 1-3, it is characterized in that: described male splined shaft afterbody also is provided with a driven pulley, and driven pulley connects the driving wheel of power motor by a Timing Belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210157689XA CN103170686A (en) | 2012-05-21 | 2012-05-21 | Automatic tapping machine power head capable of fast feed and fast return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210157689XA CN103170686A (en) | 2012-05-21 | 2012-05-21 | Automatic tapping machine power head capable of fast feed and fast return |
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| Publication Number | Publication Date |
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| CN103170686A true CN103170686A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210157689XA Pending CN103170686A (en) | 2012-05-21 | 2012-05-21 | Automatic tapping machine power head capable of fast feed and fast return |
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| CN (1) | CN103170686A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358159A (en) * | 2013-06-27 | 2013-10-23 | 宁波市鄞州迅隆机械设备厂（普通合伙） | Novel automatic drilling and tapping integrated machine |
| CN105246648A (en) * | 2013-02-26 | 2016-01-13 | 艾沛克斯品牌公司 | Positive feed tool with improved shift from forward to retract |
| US10427258B2 (en) | 2014-08-20 | 2019-10-01 | Apex Brands, Inc. | Positive feed tool with improved shift from forward to retract |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2305420A1 (en) * | 1973-02-03 | 1974-08-15 | Lechler Apparatebau Kg | DRILLING OR TAPPING UNIT |
| DE10325719A1 (en) * | 2003-06-06 | 2005-01-05 | Steinel Normalien Ag | Processing unit for e.g. press or stamp has fluid unit for spindle stroke drive with double action piston with controllable lifting drive, at least one sensor unit that detects piston stroke position |
| CN101342620A (en) * | 2008-08-15 | 2009-01-14 | 应云富 | Dual-speed self-tapping machine tool |
| CN201257536Y (en) * | 2008-08-15 | 2009-06-17 | 应云富 | Automatic drill machine |
| CN201940711U (en) * | 2010-12-06 | 2011-08-24 | 福州工大台钻有限公司 | Leading screw type automatic tapping machine |
| CN202555917U (en) * | 2012-05-21 | 2012-11-28 | 温岭市国邦电气有限公司 | Automatic tapping machine power head capable of advancing and retreating quickly |
-
2012
- 2012-05-21 CN CN201210157689XA patent/CN103170686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2305420A1 (en) * | 1973-02-03 | 1974-08-15 | Lechler Apparatebau Kg | DRILLING OR TAPPING UNIT |
| DE10325719A1 (en) * | 2003-06-06 | 2005-01-05 | Steinel Normalien Ag | Processing unit for e.g. press or stamp has fluid unit for spindle stroke drive with double action piston with controllable lifting drive, at least one sensor unit that detects piston stroke position |
| CN101342620A (en) * | 2008-08-15 | 2009-01-14 | 应云富 | Dual-speed self-tapping machine tool |
| CN201257536Y (en) * | 2008-08-15 | 2009-06-17 | 应云富 | Automatic drill machine |
| CN201940711U (en) * | 2010-12-06 | 2011-08-24 | 福州工大台钻有限公司 | Leading screw type automatic tapping machine |
| CN202555917U (en) * | 2012-05-21 | 2012-11-28 | 温岭市国邦电气有限公司 | Automatic tapping machine power head capable of advancing and retreating quickly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246648A (en) * | 2013-02-26 | 2016-01-13 | 艾沛克斯品牌公司 | Positive feed tool with improved shift from forward to retract |
| US9662756B2 (en) | 2013-02-26 | 2017-05-30 | Apex Brands, Inc. | Positive feed tool with improved shift from forward to retract |
| CN103358159A (en) * | 2013-06-27 | 2013-10-23 | 宁波市鄞州迅隆机械设备厂（普通合伙） | Novel automatic drilling and tapping integrated machine |
| CN103358159B (en) * | 2013-06-27 | 2016-09-28 | 宁波市鄞州迅隆机械设备厂（普通合伙） | Automatic drilling tapping all-in-one |
| US10427258B2 (en) | 2014-08-20 | 2019-10-01 | Apex Brands, Inc. | Positive feed tool with improved shift from forward to retract |
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Application publication date: 20130626 |