CN205437272U - A electric tool that is used for adapter of hole saw and has it - Google Patents

Abstract

The utility model discloses an electric tool that is used for adapter of hole saw and has it, the adapter includes: first ring flange, it includes hole and location portion, wherein, the hole runs through first ring flange along the axial, the mandrel, it is including inserting the first region section of establishing in the hole, be equipped with the second ring flange in the first region section, set up a plurality of basic holes on the second ring flange, and axial relative motion can take place with first ring flange for the second ring flange, and first ring flange can be rotatory around the mandrel, one side that first ring flange was kept away from in the second ring flange to the mandrel is equipped with the screw thread portion that supplies the hole saw to close soon, wherein, the adapter has along the hookup position and the release position of circumference, in the hookup position, the location portion of first ring flange and the cooperation of the partial basic hole of second ring flange to make location portion pass and the protrusion basic hole is joined in marriage for the hole saw and is connect, at release position, location portion is not passed and the protrusion basic hole. It has higher job stabilization nature and is convenient for loading and unloading.

Description

For the adapter of hole saw and the electric tool with it

Technical field

This utility model relates to electric tool part field, and it is specifically related to the adapter for hole saw.

Background technology

In modern industry or engineering, during for processing circular port on the various materials such as metal, it will usually use hole saw.Needing to provide power for hole saw in this sawing process, therefore general being arranged on by hole saw on the electric tool such as electric hand drill, impact brill, radial drill uses in the lump.For adaptive different hole saws and different electric tool, it is provided for the most betwixt providing connection and the adapter of transmission moment.

There is several different types of adapter in prior art kind.Such as, relatively conventional a kind of adapter includes being respectively used to connect drive division and the mandrel of hole saw and sleeve, and both is coupled to each other and can not rotate against.For this kind of adapter, after mandrel is directed at hole saw and tightens, it is possible that be installed on the pin installing hole that alignment pin on sleeve cannot be narrowly focused towards on hole saw.At present, solve problems conventional method for mandrel is reversely rotated certain angle relative to hole saw so that alignment pin realigns with the pin installing hole on hole saw, and make pin pass this installing hole complete installation.When using this kind of settling mode, owing to mandrel is after tightening, the reverse rotation of certain angle is there occurs again relative to hole saw, especially when this reverse rotation angle is excessive (such as, even up to 180 °), mandrel will be made the most firmly to couple with hole saw become slack, thus be prone to shake, and then have influence on cut quality and hole saw life-span.And for example, for United States Patent (USP) US20010001276A1, it adds for adding the sliding sleeve being solidly connected between hole saw and sleeve, but, this slide over hole saw rotary course is easily subject to its rock and the impact impacted and get loose, the most still cause hole saw to be prone to shake and affect cut quality.For another example, for United States Patent (USP) US20090279972A1, sleeve is compressed on hole saw by it by stage clip, with the connection of both reinforcings.But, the elastic force that can be provided by due to stage clip is limited, and this kind of connected mode is the most firm.

Summary of the invention

The purpose of this utility model is to provide a kind of adapter for hole saw, and it has the work coupled situation firm with hole saw.

The purpose of this utility model also resides in provides the electric tool with this kind of adapter.

For realizing the purpose of this utility model, according to an aspect of the present utility model, it is provided that a kind of adapter for hole saw, comprising: the first ring flange, it includes endoporus and location division；Wherein, described endoporus is axially through described first ring flange；Mandrel, it includes the first section being plugged in described endoporus；Described first section is provided with the second ring flange, and described second ring flange arranges some datum holes；And described second ring flange can occur moving axially relative with described first ring flange, described first ring flange can rotate around mandrel；Described mandrel is provided with the threaded portion screwed for hole saw in the second ring flange away from the side of the first ring flange；Wherein, described adapter has coupled position circumferentially and off-position；In described coupled position, the location division of described first ring flange coordinates with the described datum hole of part of described second ring flange, and makes described location division pass and protrude described datum hole to connect for hole saw；In described off-position, described location division does not passes through and protrudes described datum hole.According to this aspect of adapter of the present utility model, it has and designs brought coupled position and off-position by structure；When coupled position, this adapter self has firm configuration state, it can be avoided that axially-movable unnecessary between parts or circumferential movement when it transmits moment between drive division and hole saw；And when off-position, motion between mandrel and first ring flange of adapter, can be rotated independently of one another, to realize preferably coordinating between each parts and with between hole saw.When combining above coupled position and off-position to regulate the adapter of the present invention, first mandrel can be unscrewed slightly and inverts a small distance make immediate datum hole in the second ring flange thereon coordinate with the pin installing hole on hole saw when it the situation that location division does not coordinates with the pin installing hole of hole saw after mandrel is tightened with hole saw occurs；First ring flange and mandrel are constantly in off-position before this, make both rotate against so that the location division being arranged on the first ring flange coordinates with datum hole and reenters coupled position.So can unscrew degree and obtain location division by losing less mandrel and coordinates with the installation of pin installing hole, and then avoid excessively relaxing owing to mandrel couples with hole saw and causing hole saw shake in cutting work or retreat phenomenon, improve its functional reliability.

Alternatively, described location division includes the pin-and-hole being arranged on described first ring flange and is installed on the alignment pin in described pin-and-hole, in described coupled position, described alignment pin coordinates with the described datum hole of part of described second ring flange, and described first ring flange is against to described second ring flange.In this aspect of the present utility model, it is provided that the detailed description of the invention of a kind of location division.Now, the alignment pin being arranged on the first ring flange can be made to be directed at and pass datum hole.

Alternatively, in described off-position, described alignment pin is resisted against described second ring flange and does not coordinates with any described datum hole.In this aspect of the present utility model, it is provided that the detailed description of the invention of a kind of location division.Now, the relative position between rotatable spindle the alignment pin that adjusts in the second ring flange thereon on immediate datum hole and the first ring flange.

Alternatively, described first ring flange is arranged about its axisymmetrical arrange on a pair pin-and-hole, and described second ring flange some to described datum hole.In this aspect of the present utility model, the pin-and-hole being arranged in pairs with the combination of datum hole or generality than single pin-and-hole is had with the combination of datum hole and more firm couples effect by the symmetrical and pin-and-hole that is arranged in pairs and the combination of datum hole.

Alternatively, some described datum holes are evenly arranged along the circumference of described second ring flange.In this aspect of the present utility model, the datum hole being evenly arranged makes the relative accommodation sold between installing hole on the second ring flange and hole saw have the fixing anglec of rotation so that the effect after regulation it is expected to and more controllable.

Alternatively, the number of described datum hole is eight, and the center of circle in adjacent reference hole is respectively to the line formation 45° angle in the second ring flange center of circle.In this aspect of the present utility model, the regulating degree that this kind of layout takes into full account is rich and the limitation of the size of the second ring flange own, in wherein obtaining preferably balance.Namely, when there is the pin installing hole on hole saw and the most out-of-alignment situation of any datum hole on the second ring flange at mandrel and hole saw after tightening, at most only need to unscrew mandrel and invert 45° angle and can realize alignment, thus greatly reducing mandrel and relative with hole saw unscrew degree, therefore effectively prevent relatively rocking between hole saw and adapter.

Alternatively, also including positioning component, it is disposed against described first ring flange, and is depressed into described first ring flange against described second ring flange when coupled position；And/or when off-position, the location division being arranged on described first ring flange is depressed into against described second ring flange.In this aspect of the present utility model, it is provided that a kind of mandrel and the mode that specifically positions of the first ring flange, it can preferably realize mandrel in coupled position and the conversion of off-position.

Alternatively, described positioning component includes flexible member and base portion；Wherein, described flexible member can occur stretching motion in company with the axially reciprocating of the most described second ring flange of described first ring flange；Described base portion is fixed to described mandrel and provides the stop position of described flexible member.In this aspect of the present utility model, provide a kind of detailed description of the invention actuating mandrel and the positioning component of the first ring flange relative position relation, it not only improves and improves the stability coupled between mandrel and sleeve, is conducive to again improving the comfort level that both are mutually disengaged.

Alternatively, described mandrel being provided with drill bit bore vertically that extend from described first section, it is used for installing drill bit；And radially it is communicated with the collared hole to described drill bit bore on described first section；Drill bit can be positioned in described drill bit bore by bolt by described collared hole.In this aspect of the present utility model, it is provided that a kind of drill bit is installed and fixed the detailed description of the invention to mandrel.

According to another aspect of the present utility model, also provide for a kind of electric tool, comprising: foregoing adapter, hole saw, drill bit and drive division；Wherein, described drive division delivers torque to described hole saw and described drill bit via described adapter.According to the electric tool of this aspect of the present utility model, its have be prone to handling, steady operation and other merits.

Accompanying drawing explanation

Fig. 1 is the decomposition view of an embodiment of the adapter for hole saw of the present utility model；

Fig. 2 is the cross sectional plan view of an embodiment of the second ring flange of the adapter for hole saw of the present utility model；

Fig. 3 is an embodiment sectional view in off-position of the adapter for hole saw of the present utility model；

Fig. 4 is the partial enlarged view of the adapter for hole saw in Fig. 3；

Fig. 5 is the cross sectional plan view of the adapter for hole saw in Fig. 3；

Fig. 6 is the embodiment sectional view in coupled position of the adapter for hole saw of the present utility model；

Fig. 7 is the partial enlarged view of the adapter for hole saw in Fig. 6；

Fig. 8 is the cross sectional plan view of the adapter for hole saw in Fig. 6；

Fig. 9 is the first step view that the carrying out for the adapter of hole saw of the present utility model assembles or regulate；

Figure 10 is the second step view that the carrying out for the adapter of hole saw of the present utility model assembles or regulate；

Figure 11 is the third step view that the carrying out for the adapter of hole saw of the present utility model assembles or regulate；And

Figure 12 is the 4th step view that the carrying out for the adapter of hole saw of the present utility model assembles or regulate.

Detailed description of the invention

See Fig. 1, it illustrates an embodiment of the adapter for hole saw of the present utility model.Specifically, this adapter includes successively along its erection sequence: mandrel 200 and the first ring flange 100.

Wherein, in conjunction with Fig. 1 and Fig. 2, it is seen that mandrel 200 includes being roughly divided into the two sections: first section 210 and the second section 220 according to self structure difference；And it is provided with along central axis and extends to the drill bit bore 230(active view of the second section 220 invisible because of its visual angle from the first section 210, visible in the Fig. 3 illustrate section), plug wherein for for drill bit 500.The first section 210 for mandrel 200, second ring flange 211 is set on it, and the second the most some datum hole of ring flange 211 212, datum hole 212 axially penetrates through the second ring flange 211 along adapter, and its pin-and-hole on the first ring flange for hereafter addressing and the pin installing hole on hole saw are to provide alignment reference.Specifically, in one of the states, when mandrel and hole saw completed fixing after have been found that datum hole 212 fails with pin installing hole on time, mandrel can be unscrewed slightly and invert so that it is on datum hole 212 be directed at the pin installing hole on hole saw.Degree can be unscrewed guarantee that adapter is overall by relatively small number of between mandrel and hole saw and complete to assemble with hole saw in such cases, and avoid occur because of excessively lax rock duty.First section 210 of mandrel 200 is the most radially communicated with the collared hole 213 to drill bit bore 230.It is so designed that so that drill bit 500 can be positioned in drill bit bore 230 through collared hole 213 by an extra bolt 240.Additionally, the first section 210 of mandrel 200 has a round and smooth exterior contour, this kind of structure make its with hereafter by the endoporus of the first ring flange addressed can be stable alignment and relative be freely rotatable.On the other hand, the second section 220 of mandrel 200 has hexagonal exterior contour, in order to can firmly plug to the drive division of electric tool in the assembled state, is driven by it and transmits moment.Furthermore, mandrel 200 is additionally provided with threaded portion in the second ring flange 211 away from the side of the first ring flange 100, for hole saw threaded.

The part illustrated following closely is the first ring flange 100.First ring flange 100 includes: axially through the endoporus 110 of the first ring flange 100 and in outside along its circumferentially and equally axially through pin-and-hole 120.Wherein, endoporus 110 plugs wherein for the first section 210 accommodating mandrel 200；Pin-and-hole 120 is then used for installing alignment pin 300.Specifically, in one of the states, when pin-and-hole 120 fails with datum hole 212 on time, alignment pin 300 will prop up the second ring flange 211, and now the first ring flange 100 separates with the second ring flange 211；In another state, when pin-and-hole 120 and datum hole 212 are on time, alignment pin 300 will pass and protrude from datum hole, and then completes to assemble through hole saw, and now the first ring flange 100 is bonded to each other with the second ring flange 211.

As follows, by combine Fig. 1 and Fig. 2 further describe adapter of the present utility model complete assemble after state.Specifically, the first section 210 of mandrel 200 has the diameter of the endoporus 110 less than the first ring flange 100, in order to it can uncrossed be plugged in the first ring flange 100.Further, this first ring flange 100 relative to mandrel 200 along adapter axially-movable, and can be limited its exercise end by positioning component 400.Specifically, positioning component 400 includes the flexible member 410 limiting the axially-movable of the first ring flange 100 and provides the base portion 420 of supporting for it.This kind of layout makes adapter include two kinds of location status vertically: namely coupled position and off-position.

State and the annexation of each part when adapter is in coupled position or off-position is further described below in conjunction with Fig. 3 to Fig. 8.

Wherein, Fig. 3 to Fig. 5 shows an embodiment of the adapter being in off-position.Now, pin-and-hole 120 on first ring flange 100 and datum hole 212 misalignment on the second ring flange 211, therefore the alignment pin 300 being installed on ring flange 100 abuts against the second ring flange 211 under the compressing of flexible member 410, and such as, it specifically can be resisted against between some datum holes 212.Under this kind of state, both can rotate freely the mutual relation adjusted between the first ring flange 100 and mandrel, in order to be directed at datum hole 212 by alignment pin 300 and realize installing；Can also confirm whether datum hole 212 is directed at the pin installing hole on hole saw, if misalignment, then mandrel can be unscrewed a small distance to realize the alignment of the two, in order to installation subsequently in advance after mandrel is screwed together with hole saw.

Fig. 6 to Fig. 8 shows an embodiment of the adapter being in coupled position.Now, pin-and-hole 120 on first ring flange 100 is directed at the datum hole 212 on the second ring flange 211, therefore the alignment pin 300 being installed on ring flange 100 will pass and protrudes from the datum hole 212 on the second ring flange 211, until the first ring flange 100 abuts against the second ring flange 211 under the compressing of flexible member 410.Under this kind of state, alignment pin 300 can be further through installing hole corresponding on hole saw, it is achieved thereby that adapter is overall and the assembling of hole saw.Now, owing to the circumferentially opposed position relationship between the second ring flange 211 and the first ring flange 100 and relative axial position relation receive mandrel 200 self and the restriction of positioning component 400 respectively, connection the most between the two is the most firm.

It follows that mandrel 200 has two positions relative to the first ring flange 100, and it is being in the two position for the moment, different effects can realized respectively.As example, in the adapter of the present invention with the installation process of hole saw, adapter is first in off-position, the first ring flange 100 and the second ring flange 211 and not in contact with, alignment pin is also not fully complete installation.First the threaded portion of mandrel 200 making adapter is spirally connected with the axis hole 610 of hole saw 600 and tightens；If the datum hole 212 on the second ring flange 211 is not directed at the pin installing hole 620 on hole saw 600 just, mandrel 200 can be unscrewed and reverse rotation makes the two be directed at.Make the first ring flange rotate relative to the second ring flange 211 subsequently, make the datum hole 212 that the alignment pin 300 being arranged on the first ring flange 100 is narrowly focused towards in advance and pin installing hole was directed at.Then make the first ring flange 100 move to coupled position with mandrel 200, and make alignment pin 300 insert pin installing hole 620, thus realize the strong fix of above-mentioned part in axial and circumference, and then guarantee whole equipment stability after finishing assembly and under duty.

Additionally, according to the working method of each part of this utility model described in embodiment herein above and principle, it is known that it should possess some optional embodiments respectively, citing is explained as follows.

Alternatively, for the datum hole 212 on the pin-and-hole 120 of the first ring flange 100 used in above example and the second ring flange 211, the purpose of design understanding both predominantly makes datum hole 212 possess the alignment angle of plurality of optional relative to the pin installing hole of hole saw, and make pin-and-hole 120 be directed at and two kinds of position relationships of misalignment with datum hole 212 existence, and then guarantee that adapter and hole saw can stably assemble.Based on considering above, alternatively, a pair pin-and-hole 120 can be set about the axisymmetrical of the first ring flange 100, and on the second ring flange arrange coordinate with it some to datum hole, so that when coupled position, in datum hole any pair can be realized being directed at by alignment is some by this to selling installing hole on pin-and-hole and hole saw, thus reduces the angle of the required reversion of mandrel.This symmetry and the design of paired hole will provide for the connection locating effect more consolidated, and more convenient processing.Alternatively, some datum holes also can be evenly arranged along the circumference of the second ring flange, so that the second ring flange has known and fixing angle relative to each rotary alignment of the first ring flange or hole saw, is more convenient for understanding current assembled state and adjusting part.Alternatively, as example, the number that can select datum hole is eight, and the center of circle in adjacent reference hole is respectively to the line formation 45° angle in the second ring flange center of circle, now at most only need to realize mandrel reversion 45 ° and being directed at of the pin installing hole on hole saw, greatly reduce the degree unscrewed required for mandrel.This kind of design has been taken the available design size of ring flange self into consideration and has increased the multiformity of adjustable angle between two ring flanges as much as possible.

Optionally, in addition, the base portion 420 in positioning component 400 mentioned above can use retaining spring, and it also has relatively suitably locating effect and cost viewpoint.

Alternatively, although above example have employed the location division embodiment that alignment pin matches with pin-and-hole.But it should be appreciated that, those skilled in the art also can use other location division embodiments.Such as, alignment pin can be integrally formed on the first ring flange etc..

The quick assembling process of adapter of the present utility model and hole saw is described below in conjunction with Fig. 9 to Figure 12.

First, moving the first ring flange 100 axially upward so that alignment pin 300 is not inserted in the datum hole of the second ring flange 211, now mandrel 200 and the second ring flange 211 are in the off-position that can rotate independent of the first ring flange 100.Subsequently, one end of mandrel 200 can be rotated in the axis hole 610 being screwed into hole saw 600, preliminarily form the connection of mandrel 200 and hole saw 600.Subsequently, rotate the first ring flange 100 or the second ring flange 211 makes the alignment pin 300 being installed on the pin-and-hole 120 of the first ring flange 100 and the part datum hole on the second ring flange 211 and is directed at, and be directed at the installing hole in hole saw 600.Now, all cannot just make if there is any turnbarrel alignment pin 300 and pin installing hole 620 on time, unscrew mandrel first realize being directed at of pin installing hole 620 and datum hole 212 by taking to invert slightly；And rotate the first ring flange 100 subsequently to realize being directed at of alignment pin 300 and datum hole 212.Finally, first ring flange 100 is depressed into downwards and makes alignment pin 300 pass and protrude from the datum hole 212 on the second ring flange 211 and insert in the pin installing hole 620 of hole saw 600, now the first ring flange 100 is fixedly connected with mandrel 200, thus mandrel 200 is in the coupled position that the first ring flange 100 can be driven to rotate in the lump.The most complete the installation of hole saw 600 and adapter, adapter has been plugged on drive division hole saw 600 can be driven normally to work subsequently.Alternatively, if desired dismounting hole saw and adapter, more than reverse execution operate.

Additionally, according to another aspect of the present utility model, also provide for the embodiment of a kind of electric tool, it can include the adapter in embodiment described above, hole saw, drill bit and for providing the drive division of power source.Wherein, drill bit can be plugged in mandrel, and hole saw then can be fixed on ring flange via alignment pin, and mandrel also includes the second section 220 of plugging to drive division.Under in working order, on the one hand the moment in mandrel self-driven portion in the future be transferred to drill bit, is on the other hand transferred to hole saw via the alignment pin being arranged on the first ring flange 100, in order to drives the two to rotate respectively, thus realizes the demand of perforate on unlike material.

Detailed description of the invention the most of the present utility model is described in detail.Remodeling that feature concrete in embodiment can be equal to by those skilled in the art according to the above description or modification, certainly, these embodiments changed also will fall in the protection domain that claims are covered.

Claims (10)

1. the adapter for hole saw, it is characterised in that including:

First ring flange (100), it includes endoporus (110) and location division；Wherein, described endoporus (110) is axially through described first ring flange (100)；

Mandrel (200), it includes the first section (210) being plugged in described endoporus (110)；Described first section (210) is provided with the second ring flange (211), and described second ring flange (211) arranges some datum holes (212)；And described second ring flange (211) can occur moving axially relative with described first ring flange (100), described first ring flange (100) can rotate around mandrel (200)；Described mandrel (200) is provided with the threaded portion screwed for hole saw in the second ring flange (211) away from the side of the first ring flange (100)；

Wherein, described adapter has coupled position circumferentially and off-position；In described coupled position, the location division of described first ring flange (100) coordinates with the described datum hole of the part (212) of described second ring flange (211), and makes described location division pass and protrude described datum hole (212) to connect for hole saw；In described off-position, described location division does not passes through and protrudes described datum hole (212).

Adapter the most according to claim 1, it is characterized in that, described location division includes the pin-and-hole (120) being arranged on described first ring flange (100) and the alignment pin (300) being installed in described pin-and-hole (120), in described coupled position, described alignment pin (300) coordinates with the described datum hole of the part (212) of described second ring flange (211), and described first ring flange (100) is against to described second ring flange (211).

Adapter the most according to claim 2, it is characterised in that in described off-position, described alignment pin (300) is resisted against described second ring flange (211) and does not coordinates with any described datum hole (212).

4. according to the adapter according to any one of claim 1-3, it is characterised in that described first ring flange (100) arranges a pair pin-and-hole (120) about its axisymmetrical, and arranges some to datum hole (212) on described second ring flange (211).

Adapter the most according to claim 4, it is characterised in that some described datum holes (212) are evenly arranged along the circumference of described second ring flange (211).

Adapter the most according to claim 5, it is characterised in that the number of described datum hole (212) is eight, the center of circle of adjacent reference hole (212) is respectively to the line formation 45° angle in the second ring flange (211) center of circle.

Adapter the most as claimed in any of claims 1 to 3, it is characterized in that, also including positioning component (400), it is disposed against described first ring flange (100), and is depressed into described first ring flange (100) against described second ring flange (211) when coupled position；And/or when off-position, the location division being arranged on described first ring flange (100) is depressed into against described second ring flange (211).

Adapter the most according to claim 7, it is characterised in that described positioning component (400) includes flexible member (410) and base portion (420)；Wherein, described flexible member (410) can occur stretching motion in company with the axially reciprocating of described the most described second ring flange of first ring flange (100) (211)；Described base portion (420) is fixed to described mandrel (200) and provides the stop position of described flexible member (410).

9. according to the adapter described in claims 1 to 3 any one, it is characterised in that: being provided with the drill bit bore (230) extended from described first section (210) in described mandrel (200) vertically, it is used for installing drill bit (500)；And the collared hole (213) being radially communicated with to described drill bit bore (230) on described first section (210)；Bolt (240) can be by described collared hole (213) by drill bit (500) location in described drill bit bore (230).

10. an electric tool, it is characterised in that including: the adapter as described in claim 1 to 9 any one, hole saw (600), drill bit (500) and drive division；Wherein, described drive division delivers torque to described hole saw (600) and described drill bit (500) via described adapter.