CN106735376A

CN106735376A - Drill bit fastening device of drilling machine

Info

Publication number: CN106735376A
Application number: CN201611107300.5A
Authority: CN
Inventors: 韦红生
Original assignee: Guangzhou Zhenghang Machinery Equipment Co ltd
Current assignee: Taizhou Huangyan Yusheng Polyester Mold Factory
Priority date: 2016-12-06
Filing date: 2016-12-06
Publication date: 2017-05-31
Anticipated expiration: 2036-12-06
Also published as: CN106735376B

Abstract

The invention discloses a drill bit fastening device of a drilling machine, which comprises an outer jacket (1) and an inner jacket (5), wherein a steel ball chute (6) is arranged on the inner circular surface of the outer jacket (1), another group of steel ball chutes (6) corresponding to the outer jacket (1) are arranged on the outer circular surface of the inner jacket (5), the inner jacket (5) is arranged in the outer jacket (1), a plurality of rows of steel balls (7) are arranged between two groups of steel ball chutes (6), the steel balls (7) are fixedly connected through a sleeve (8), a group of main flow pipe (10) is arranged in the inner jacket (5), a shunt pipe (11) and a branch pipe (12) which are communicated with the main flow pipe (10) are arranged in the inner jacket (5), a group of screwing pressure pipe bodies (13) is fixed in front of the inner jacket (5), and a screwing pressure area (14) is arranged in the screwing pressure pipe bodies (13), and the screwing area (14) is communicated with the shunt pipe (11).

Description

A kind of drill fastener

Technical field

The present invention relates to a kind of drill fastener.

Background technology

At present, drilling machine the industries such as building, house ornamentation be employed more and more extensively, drilling machine drilling when need basis The depth of punching changes the drill bit of different length；During using being worked compared with long drill bit, under the drive that motor is twisted at a high speed, often Meeting is long because of drill bit and causes the drill bit eccentric phenomena for occurring simply by end fixed mode, causes hole deflection, Have a strong impact on work quality and operating efficiency.

The content of the invention

It is an object of the invention to provide a kind of drill fastener, to solve what is proposed in above-mentioned background technology Problem.

To achieve the above object, the present invention provides following technical scheme：

A kind of drill fastener, including external jacket and internal jacket, the inner headed face of the external jacket are provided with steel ball chute, The periphery of the internal jacket is provided with another group steel ball chute corresponding with the external jacket, and the internal jacket is placed in outer clip Multirow steel ball is laid between the inside of set, and steel ball chute described in two groups, is fixedly connected by tackling between steel ball described in multirow, One group of main flow pipe is provided with inside the internal jacket, the isocon and branch for leading to the main flow pipe are provided with inside the internal jacket Flow tube, sets one group and twists pressure pipe body before the internal jacket, stubborn nip, and the stubborn pressure are provided with inside the stubborn pressure pipe body Area mutually interlinks with the isocon, and the stubborn pressure pipe body is laying one group of stubborn pressure valve positioned at the inside of the stubborn nip, described The top surface centre position for twisting pressure valve sets one group of threaded post for penetrating the stubborn pressure pipe body, and the threaded post and the stubborn pressure pipe It is connected through a screw thread between body, the threaded post is fixing one group of stubborn briquetting, the inner clip outside the stubborn pressure pipe body The centre of set is provided with Kong Tou areas, and the internal jacket is fixed with multiple push-and-pull tube columns, the push-and-pull in the position positioned at Kong Tou areas Push-and-pull space is provided with inside tube column, one group of Push-and-pull valve is laid in the inside in the push-and-pull space, in the top surface of institute's Push-and-pull valve Between fix one group of pull bar, the pull bar penetrates the push-and-pull tube column, and the pull bar positioned at the push-and-pull tubing string External one end sets one group of holding body, and catch surface is provided with front side of the holding body, and the internal jacket is also pushed away positioned at described On the position of trombone slide cylinder both sides be provided with multigroup elastic force apparatus, the elastic force apparatus away from the internal jacket one end with it is described Holding body is fixedly connected.

Further, touching between wall for the stubborn pressure valve and stubborn pressure pipe body is provided with protection pad.

Further, the threaded post is provided with external screw thread, and the stubborn pressure pipe body is in the position penetrated by the threaded post Install the internal thread engaged with the external screw thread.

Further, the end of the threaded post is fixed on the inside of the stubborn pressure valve by bearing.

Further, touching between wall for institute's Push-and-pull valve and the push-and-pull tube column is provided with protection pad.

Further, the external jacket and internal jacket are identical positioned at the slot of steel ball runner position and the radius of steel ball.

Further, the isocon, main flow pipe and Zhi Liuguan the inside are equipped with hydraulic oil.

Compared with prior art, the beneficial effects of the invention are as follows：

The present invention is acted in drill, is effectively fastened drill bit by the present apparatus, is not influenceing drill bit normal In the case of twisting, position-limiting action is carried out to drill bit, occur eccentric phenomena under the circumference of the high-speed rotation so as to prevent drill bit, entered And ensure the accurate of hole, improve work quality and operating efficiency.

Brief description of the drawings

Fig. 1 is a kind of structural representation of drill fastener of the invention；

Fig. 2 is the structural representation inside internal jacket in a kind of drill fastener of the invention；

Fig. 3 is the attachment structure schematic diagram of stubborn pressure pipe body and internal jacket in a kind of drill fastener of the invention.

Fig. 4 is the connection enlarged diagram of present invention holding body under tightening state.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Refer to Fig. 1-4, a kind of embodiment that the present invention is provided：A kind of drill fastener, including external jacket 1 With internal jacket 5, the inner headed face of the external jacket 1 is provided with steel ball chute 6, and the periphery of the internal jacket 5 is provided with and the outer clip 1 another group of corresponding steel ball chute 6 is covered, the internal jacket 5 is placed in the inside of external jacket 1, and steel ball chute 6 described in two groups Between lay multirow steel ball 7, be fixedly connected by tackling 8 between steel ball 7 described in multirow, the inside of the internal jacket 5 is provided with one Group main flow pipe 10, the inside of the internal jacket 5 is provided with the isocon 11 and Zhi Liuguan 12 for leading to the main flow pipe 10, the inner clip Set 5 above fixes one group and twists pressure pipe body 13, and the inside of the stubborn pressure pipe body 13 is provided with stubborn nip 14, and the stubborn nip 14 and The isocon 11 mutually interlinks, and the stubborn pressure pipe body 13 twists pressure valve 15 at one group positioned at the placement of the inside of the stubborn nip 14, One group of threaded post 16 for penetrating the stubborn pressure pipe body 13, and the threaded post 16 are fixed in the top surface centre position of the stubborn pressure valve 15 It is connected through a screw thread and the stubborn pressure pipe body 13 between, the threaded post 16 is fixing one positioned at the outside of the stubborn pressure pipe body 13 The stubborn briquetting 17 of group, the centre of the internal jacket 5 is provided with Kong Tou areas 9, and the internal jacket 5 is fixed with positioned at the position in Kong Tou areas 9 Multirow push-and-pull tube column 18, the inside of the push-and-pull tube column 18 is provided with push-and-pull space 19, the inside peace in the push-and-pull space 19 One group of Push-and-pull valve 20 is put, one group of pull bar is fixed in the centre of the top surface of institute's Push-and-pull valve 20, and the pull bar penetrates the push-and-pull pipe Cylinder 18, and the pull bar fixes one group of holding body 21, the holding body in the one end outside the push-and-pull tube column 18 21 front side is provided with catch surface 22, and the internal jacket 5 is provided with many also on the position positioned at the both sides of push-and-pull tube column 18 Group elastic force apparatus 2, the elastic force apparatus 2 are away from the internal jacket（5）One end be fixedly connected with the holding body 21, the bullet Power apparatus 2 are used to slow down the vibration that the drill bit in boring procedure passes to the push-and-pull tube column 18 by the holding body 21 Power so that whole device operation is more consolidated, and increased service life.

Touching between wall for the stubborn pressure valve 15 and stubborn pressure pipe body 13 is provided with protection pad, prevents hydraulic pressure oil seepage；The screw thread Post 16 is provided with external screw thread, and the stubborn pressure pipe body 13 is provided with and the external screw thread phase by the position that the threaded post 16 is penetrated The internal thread of engagement, plays a part of threaded connection；The end of the threaded post 16 is fixed on the stubborn pressure valve 15 by bearing The inside, now, threaded post 16 just can twist advance, and twisting pressure valve 15 will not twist, but can advance, and play stubborn pressure Effect；Touching between wall for the Push-and-pull valve 20 and the push-and-pull tube column 18 is provided with protection pad, prevents the shadow because of hydraulic pressure oil seepage Ring the ability to work of device；The radius phase of the external jacket 1 and internal jacket 5 in the slot positioned at the position of steel ball chute 6 and steel ball 7 Together, now, steel ball 7 can play effective rolling friction effect, and will not cause that steel ball 7 escapes planned orbit；The shunting Pipe 11, main flow pipe 10 and the insides of Zhi Liuguan 12 are equipped with hydraulic oil, for pushing, play the transmission effect of power.

Specifically used mode：In present invention work, one end of drill bit is first penetrated into Kong Tou areas 9, then fix external jacket 1 In on the body for boring empty machine, now, stubborn briquetting 17 is twisted respectively, because threaded post 16 and stubborn pressure pipe body 13 are threaded connections, twist Turn to cause that threaded post 16 drives stubborn pressure valve 15 to move down, the hydraulic oil positioned at the inside of stubborn pressure pipe body 13 will be by isocon 11st, main flow pipe 10 and Zhi Liuguan 12 are entered into the push-and-pull space 19 of the inside of push-and-pull tube column 18, and Push-and-pull valve 20 is pushed, And Push-and-pull valve 20 drives pull bar to cause that the catch surface 22 in holding body 21 is connected to the surface of the drill bit body of rod, further twist each The stubborn briquetting 17 of group so that each group holding body 21 plays effective clamping effect, when drill bit is rotated, because the clamping of holding body 21 is bored Head, drill bit can drive holding body 21 to rotate simultaneously, and then drive internal jacket 5 to rotate together, due to the architectural characteristic of steel ball 7, energy Enough so that being relatively rotated between internal jacket 5 and external jacket 1；In boring procedure, because drill bit is by the clamping of internal jacket 5, energy The generation of enough eccentric phenomenas for effectively preventing drill bit from being produced due to running at high speed, can be slowed down in drilling by elastic force apparatus 2 During drill bit the vibration force of the push-and-pull tube column 18 is passed to by the holding body 21 so that whole device is run more It is firm, increased service life.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.

Claims

1. a kind of drill fastener, including external jacket（1）And internal jacket（5）, it is characterised in that：The external jacket （1）Inner headed face be provided with steel ball chute（6）, the internal jacket（5）Periphery be provided with and the external jacket（1）Corresponding is another One group of steel ball chute（6）, the internal jacket（5）It is placed in external jacket（1）The inside, and steel ball chute described in two groups（6）Between Lay multirow steel ball（7）, steel ball described in multirow（7）Between pass through tackling（8）It is fixedly connected, the internal jacket（5）The inside set There is one group of main flow pipe（10）, the internal jacket（5）The inside be provided with and lead to the main flow pipe（10）Isocon（11）And tributary Pipe（12）, the internal jacket（5）Before fix one group and twist pressure pipe body（13）, the stubborn pressure pipe body（13）The inside be provided with stubborn pressure Area（14）, and the stubborn nip（14）With the isocon（11）Mutually interlink, the stubborn pressure pipe body（13）Twisted positioned at described Nip（14）The inside lay one group twist pressure valve（15）, the stubborn pressure valve（15）Top surface centre position fix one group penetrate it is described Twist pressure pipe body（13）Threaded post（16）, and the threaded post（16）With the stubborn pressure pipe body（13）Between be connected through a screw thread, The threaded post（16）Positioned at the stubborn pressure pipe body（13）Outside fix one group twist briquetting（17）, the internal jacket（5）'s Centre is provided with Kong Tou areas（9）, the internal jacket（5）Positioned at Kong Tou areas（9）Position be fixed with multiple push-and-pull tube columns（18）, The push-and-pull tube column（18）The inside be provided with push-and-pull space（19）, the push-and-pull space（19）The inside lay one group of Push-and-pull valve （20）, institute's Push-and-pull valve（20）The centre of top surface fix one group of pull bar, the pull bar penetrates the push-and-pull tube column（18）, And the pull bar is positioned at the push-and-pull tube column（18）One group of holding body is fixed in outer one end（21）, the holding body（21） Front side be provided with catch surface（22）, the internal jacket（5）Also positioned at the push-and-pull tube column（18）Set on the position of both sides Multigroup elastic force apparatus（2）, the elastic force apparatus（2）Away from the internal jacket（5）One end and the holding body（21）It is fixed Connection.

2. a kind of drill fastener according to claim 1, it is characterised in that：The stubborn pressure valve（15）With twist Pressure pipe body（13）Touch between wall and be provided with protection pad.

3. a kind of drill fastener according to claim 1, it is characterised in that：The threaded post（16）On set There are external screw thread, the stubborn pressure pipe body（13）By the threaded post（16）The position for being penetrated is provided with and is engaged with the external screw thread Internal thread.

4. a kind of drill fastener according to claim 1, it is characterised in that：The threaded post（16）End End is fixed on the stubborn pressure valve by bearing（15）The inside.

5. a kind of drill fastener according to claim 1, it is characterised in that：Institute's Push-and-pull valve（20）With it is described Push-and-pull tube column（18）Touch between wall and be provided with protection pad.

6. a kind of drill fastener according to claim 1, it is characterised in that：The external jacket（1）With it is interior Chuck（5）Positioned at steel ball chute（6）The slot and steel ball of position（7）Radius it is identical.

7. a kind of drill fastener according to claim 1, it is characterised in that：The isocon（11）, it is main Flow tube（10）And Zhi Liuguan（12）The inside is equipped with hydraulic oil.