CN104308229A - Adjustment fixture for center drill - Google Patents
Adjustment fixture for center drill Download PDFInfo
- Publication number
- CN104308229A CN104308229A CN201410530426.8A CN201410530426A CN104308229A CN 104308229 A CN104308229 A CN 104308229A CN 201410530426 A CN201410530426 A CN 201410530426A CN 104308229 A CN104308229 A CN 104308229A
- Authority
- CN
- China
- Prior art keywords
- bar
- slide
- wall
- axle sleeve
- chuck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/04—Devices for boring or drilling centre holes in workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses an adjustment fixture for a center drill. The adjustment fixture comprises a chuck, a slide shaft, an inner shaft sleeve which sleeves the slide shaft, an outer shaft sleeve which sleeves the inner shaft sleeve, and a fixing seat, wherein the chuck comprises a clamp holder and clamp claws for clamping the center drill; the slide shaft is arranged on the tail part of the clamp holder; the clamp holder rotates around the axis of the slide shaft and is connected with the slide shaft; the outer shaft sleeve is arranged on the fixing seat; the outer shaft sleeve is arranged on one side, close to the chuck, of the inner shaft sleeve, and the inner wall of the outer shaft sleeve is connected with the outer wall of the inner shaft sleeve in a sliding manner; the outer shaft sleeve is provided with a strip-type hole in the axial direction; the outer wall of the inner shaft sleeve is provided with a pulling rod which penetrates through the strip-type hole of the outer shaft sleeve in the radial direction; the outer wall of the slide shaft is connected with the outer wall of the inner shaft sleeve through screw threads; the inner shaft sleeve sleeves one side, close to the chuck, of the slide shaft; the outer wall of one side, far away from the chuck, of the slide shaft is provided with a rotary handle. The adjustment fixture disclosed by the invention overcomes the defect of low production efficiency caused by the fact that lot of time is wasted in positioning the center drill when the existing center drill without a positioning function is used for processing a center hole; the invention provides the adjustment fixture for the center drill, wherein the positioning is accurate, the positioning process is short and the production efficiency is high.
Description
Technical field
The invention belongs to the device field of drill centers, be specifically related to a kind of alignment jig of centre drill.
Background technology
Centre bore, as technological datum, is generally the location for the clamping of workpiece, inspection, assembling.Centre drill is then the centre bore processing on the part end faces such as axle class.The drill bit of common centre drill is twisted shape, and the bit part of centre drill need overlap with centre bore, to ensure the center of centre bore adding man-hour.
Existing centre drill adopts the afterbody only playing the clamp centre drill of clamping action, fixture only comprises jaw usually, the afterbody of jaw clamping centre drill, thus Mobility Center bores the central point near workpiece end, when moving close, there is one section of idle running distance, and the damage of workpiece or other parts is subject in order to make centre drill avoid, this section of idle running distance must exist, to cushion the process of centre drill near centre bore, when the central point of workpiece end face, adjusted the height of fixture again thus adjusted centre drill, it is made to lean and workpiece end face central point.
In view of this, centre drill near the idle running of workpiece end face central point apart from long, utilization ratio is low, and due to the position relationship of centre drill and workpiece end face central point will be observed when travelling this section of idle running distance the moment, thus the speed travelling this section of idle running distance is unsuitable too fast, need slowly advance, after centre drill and workpiece end face central point offset, pivot bores, process centre bore, and the time in machining center hole is often short compared with positioning time, therefore, most of time then flower, in the position fixing process of centre drill, just causes the defect that production efficiency is low.
Summary of the invention
The technical problem to be solved in the present invention be for during existing centre drill machining center hole without positioning function, most of time is consumed in start drill, the defect that production efficiency is low, provides a kind of accurate positioning, position fixing process short, the alignment jig of the centre drill that production efficiency is high.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: the alignment jig of centre drill, comprise chuck, slide-bar, being sheathed on the outer internal axle sleeve of slide-bar, be sheathed on outer shaft outside internal axle sleeve and holder; Chuck comprises holder and the jaw for clamping centre drill, and slide-bar is located at holder afterbody and holder connects around slide-bar axis rotation; Outer shaft is located on holder, outer shaft be located at internal axle sleeve near the side of chuck and the outer wall of the inwall of outer shaft and internal axle sleeve be slidably connected; Outer shaft is axially arranged with bar hole, and the outer wall of internal axle sleeve is provided with the pull bar radially across outer shaft bar hole; Slide-bar outer wall is connected with internal axle sleeve outer wall thread, and internal axle sleeve is sheathed on the side of slide-bar near chuck, and slide-bar is provided with rotary handle away from the side outer wall of chuck.
Adopt the alignment jig of centre drill of the present invention, comprise chuck, slide-bar, be sheathed on the outer internal axle sleeve of slide-bar, be sheathed on outer shaft outside internal axle sleeve and holder; Chuck comprises holder and the jaw for clamping centre drill, and slide-bar is located at holder afterbody and holder connects around slide-bar axis rotation; Holder is used for stationary jaw on the one hand, is used on the other hand being connected with slide-bar, and holder around axis rotation in slide-bar, can drive bit, thus process centre bore.Outer shaft is located on holder, outer shaft be located at internal axle sleeve near the side of chuck and the outer wall of the inwall of outer shaft and internal axle sleeve be slidably connected; Outer shaft is fixed on holder, and internal axle sleeve can slide in outer shaft.Outer shaft is axially arranged with bar hole, and the outer wall of internal axle sleeve is provided with the pull bar radially across outer shaft bar hole; Pull bar slides in outer shaft for driving internal axle sleeve, and bar hole can be used for the sliding distance limiting pull bar, thus can be used for the Primary Location of centre drill.Slide-bar outer wall is connected with internal axle sleeve outer wall thread, and internal axle sleeve is sheathed on the side of slide-bar near chuck, and slide-bar is provided with rotary handle away from the side outer wall of chuck; Because slide-bar is threaded with internal axle sleeve, therefore, when utilize pull bar slide in bar hole internal axle sleeve time, internal axle sleeve be communicated with slide-bar together slide in outer shaft, when pull bar slides to the end of bar hole, internal axle sleeve then cannot continue slide, Primary Location completes; Rotate rotary handle driven rotary slide-bar, slide-bar is threaded with internal axle sleeve, and slide-bar is precession in internal axle sleeve, thus the centre drill making to be positioned at slide-bar end progressively close to workpiece end face central point and offset.
Operation principle of the present invention and beneficial effect are: first, install and make slide-bar, internal axle sleeve, outer shaft and centre drill be coaxial, regulate centre drill to make axle center coaxial with the central point of workpiece end face, then to centre drill side pushing drawing rod, pull bar is slided in bar hole, and drive internal axle sleeve, slide-bar slides in outer shaft, when pull bar slides to the end of bar hole, cannot continue to slide, now, centre drill is positioned near workpiece end face, and Primary Location completes; Then rotary handle is rotated, rotary handle drives slide-bar precession in internal axle sleeve, due to the pitch of screw thread, the length of revolving then stepping of turning around is certain, makes the summit of centre drill move closer to the central point of workpiece end face until offset with it, thus complete accurate location, after having located, then give chuck power, the holder afterbody of chuck is rotated around axle center in slide-bar, thus High Rotation Speed centre drill, process centre bore.Because pull bar drives internal axle sleeve and slide-bar Primary Location centre drill, make centre drill near workpiece end face, after Primary Location completes, the accurate start drill of mode and the workpiece end face central point of the precession of recycling screw thread offset, accurate positioning; In addition, can build up speed, because bar hole limits the length of travel of pull bar when pull bar slides, therefore, can be built up speed slip, shorten the time, and the mode of spiral precession suitably can underspeed, but compared with the fixture of locating with the nothing of prior art, also suitably can improve speed, thus suitably can reduce the process of location, make the process of location short, thus enhance productivity, production efficiency is high.
Further, the lower end of described holder is provided with the adjusting device regulating height.In the process that stroke is advanced, the height of fine-tuning holder, thus the axle center height regulating outer shaft, and then regulate the axle center height of centre drill, ensure that the axle center of centre drill and the central point of workpiece end face are positioned at same axle center.
Further, the bar hole that described outer shaft is axially arranged with has two at least, and the pull bar through bar hole that internal axle sleeve outer wall is provided with also has two at least.Two pull bars and two bar holes coordinate, and exert oneself simultaneously, and the dynamics of pushing drawing rod increases, more convenient operation.
Further, described rotary handle comprises one group of radial operator link being located at slide-bar outer wall.Be similar to the steering wheel operation bar of steamer, multiple action bars makes dynamics balance, more convenient operation.
Further, described adjusting device is be located at the jack of holder lower end.Jack is that part is lifted as equipment, the light little crane gear of jacking weight in stroke by top bracket or bottom claw in one rigidity top; Jack is mainly used in the department such as factories and miness, communications and transportation as Mechanical Help and other work such as lifting, support; Its light structure is firm, flexibility and reliability, and a people can carry and operate.Easy to operate and promote precision high.
Further, the bar hole that described outer shaft is axially arranged with has four and evenly arranges around axle center, and the pull bar through bar hole that internal axle sleeve outer wall is provided with also has four and evenly arranges around axle center.Four pull bars and four bar holes, evenly arranged along axle center, thrust is decomposed into four power, reduces and promote difficulty, more convenient operation, promotes and promote efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is the schematic diagram of the alignment jig embodiment of centre drill of the present invention;
Fig. 2 is the sectional schematic diagram of A-A in Fig. 1;
Fig. 3 is the right view of Fig. 2;
In figure: holder 1, slide-bar 2, internal axle sleeve 3, outer shaft 4, holder 5, jaw 6, pull bar 7, bar hole 8, operator link 9, jack 10, centre drill 11.
Detailed description of the invention
As shown in Figure 1, the alignment jig of centre drill, comprise chuck, slide-bar 2, internal axle sleeve 3, outer shaft 4 and holder 5, the sidewall of outer shaft 4 is fixed on holder 5, and the bottom of holder 5 is provided with adjusting device, i.e. jack 10, certainly, adjusting device also can adopt the mode of adjusting bolt, chuck comprises holder 1 and the jaw 6 for clamping centre drill 11, jaw 6 adopts collet, namely one group is positioned at the intermediate plate offering swelling seam of holder 1 end face, holder 1 is axially positioned at slide-bar 2 end, and the end of holder 1 is rotatably connected with the end of slide-bar 2, slide-bar 2 outer wall is provided with external screw thread, internal axle sleeve 2 inwall is provided with internal thread, as Fig. 2, shown in Fig. 3: internal axle sleeve 2 thread bush is located at slide-bar 2 near chuck side, internal axle sleeve 2 outer wall radial direction is provided with four pull bars 7 and evenly arranges around axle center, the radial position that outer shaft 4 is identical with four pull bars 7 is axially arranged with four bar holes 8, outer shaft 4 contact sleeve is located at outside internal axle sleeve 3, and outer shaft 4 is sheathed on the side of internal axle sleeve 3 near chuck, four pull bars 7 on internal axle sleeve 4 are through corresponding four bar holes 8, internal axle sleeve 3 is provided with rotary handle 9 away from chuck side, rotary handle 9 is that four radial directions are located at the outer wall of internal axle sleeve 3 and the operator link 9 evenly arranged around axle center, certainly, rotary handle 9 adopts annular handle also within protection domain.
When concrete implementation and operation, holder 1 is rotatably connected in the end of slide-bar 2, internal axle sleeve 3 thread bush is located at outside slide-bar 2, outer shaft 3 contact slide is sheathed on outside internal axle sleeve 3, and pull bar 7 is through bar hole 8, simultaneously, make slide-bar 2, internal axle sleeve 3 and outer shaft 4 for same axle center, outer shaft 4 is fixed on holder 5 top, again the jaw 6 of the afterbody fixture of centre drill 11 is clamped, now, tentatively regulate the height of holder 5 by jack 10, make the center of centre drill 11 coaxial with the central point of workpiece end face.Pull four pull bars 7, pull bar 7 is moved to centre drill 11 side in bar hole 8, thus drive internal axle sleeve 3 and slide-bar 2 to slide in outer shaft 4, centre drill 11 is moved forward, when pull bar 7 slides to the end of bar hole 8, stop sliding, now, centre drill and workpiece end face close, regulate jack 10 again, the summit of centre drill 11 and workpiece end face central point is made to be positioned at same axial line, after adjustment completes, rotate one group of operator link 9, make slide-bar 2 precession in internal axle sleeve 3, the precession length of centre drill 11 is the pitch of screw thread, thus make centre drill 11 move closer to the central point of workpiece end face, in the process, if the summit of centre drill 11 and the central point of workpiece end face be not on same axial line, can continue to regulate jack 10 to adjust, offset with the central point on the summit and workpiece end face that make centre drill 11, after offseting, give holder 1 power again, it is made to rotate at slide-bar 2 end face, centre drill 11 is driven to process centre bore, and can man-hour added, along with the processing of centre drill 11, the extending machining center hole of bit part of centre drill 11.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (6)
1. the alignment jig of centre drill, is characterized in that: comprise holder, chuck, slide-bar, the outer shaft that is sheathed on the outer internal axle sleeve of slide-bar and is sheathed on outside internal axle sleeve; Chuck comprises holder and the jaw for clamping centre drill, and slide-bar is located at holder afterbody and holder connects around slide-bar axis rotation; Outer shaft is located on holder, outer shaft be located at internal axle sleeve near the side of chuck and the outer wall of the inwall of outer shaft and internal axle sleeve be slidably connected; Outer shaft is axially arranged with bar hole, and the outer wall of internal axle sleeve is provided with the pull bar radially across outer shaft bar hole; Slide-bar outer wall is connected with internal axle sleeve outer wall thread, and internal axle sleeve is sheathed on the side of slide-bar near chuck, and slide-bar is provided with rotary handle away from the side outer wall of chuck.
2. the alignment jig of centre drill as claimed in claim 1, is characterized in that: the lower end of described holder is provided with the adjusting device regulating height.
3. the alignment jig of centre drill as claimed in claim 1, is characterized in that: the bar hole that described outer shaft is axially arranged with has two at least, and the pull bar through bar hole that internal axle sleeve outer wall is provided with also has two at least.
4. the alignment jig of centre drill as claimed in claim 1, is characterized in that: described rotary handle comprises one group of radial operator link being located at slide-bar outer wall.
5. the alignment jig of centre drill as claimed in claim 2, is characterized in that: described adjusting device is be located at the jack of holder lower end.
6. the alignment jig of centre drill as claimed in claim 3, it is characterized in that: the bar hole that described outer shaft is axially arranged with has four and evenly arranges around axle center, the pull bar through bar hole that internal axle sleeve outer wall is provided with also has four and evenly arranges around axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410530426.8A CN104308229A (en) | 2014-10-10 | 2014-10-10 | Adjustment fixture for center drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410530426.8A CN104308229A (en) | 2014-10-10 | 2014-10-10 | Adjustment fixture for center drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104308229A true CN104308229A (en) | 2015-01-28 |
Family
ID=52363616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410530426.8A Pending CN104308229A (en) | 2014-10-10 | 2014-10-10 | Adjustment fixture for center drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104308229A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475605A (en) * | 2016-12-13 | 2017-03-08 | 杭州汉派模具有限公司 | Drill jig and drilling machine |
-
2014
- 2014-10-10 CN CN201410530426.8A patent/CN104308229A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475605A (en) * | 2016-12-13 | 2017-03-08 | 杭州汉派模具有限公司 | Drill jig and drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |