CN210334393U - PCD hard alloy boring cutter with replaceable cutter head - Google Patents

PCD hard alloy boring cutter with replaceable cutter head Download PDF

Info

Publication number
CN210334393U
CN210334393U CN201920542183.8U CN201920542183U CN210334393U CN 210334393 U CN210334393 U CN 210334393U CN 201920542183 U CN201920542183 U CN 201920542183U CN 210334393 U CN210334393 U CN 210334393U
Authority
CN
China
Prior art keywords
hole
spring
screw rod
handle
knife
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.)
Expired - Fee Related
Application number
CN201920542183.8U
Other languages
Chinese (zh)
Inventor
刘文玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Hengchao Tool Making Co ltd
Original Assignee
Changzhou Hengchao Tool Making Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changzhou Hengchao Tool Making Co ltd filed Critical Changzhou Hengchao Tool Making Co ltd
Priority to CN201920542183.8U priority Critical patent/CN210334393U/en
Application granted granted Critical
Publication of CN210334393U publication Critical patent/CN210334393U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

The utility model relates to a PCD hard alloy boring cutter with replaceable cutter head, which comprises a cutter handle and a cutter head, one end of the cutter handle is provided with a mounting groove, the cutter head is inserted into the mounting groove, the cutter handle is provided with an inner through hole, an outer through hole and a spring groove, the spring groove is internally provided with a spring fixedly connected with the spring groove and a stopper fixedly connected with the spring, the cutter head is provided with a mounting hole corresponding to the inner through hole, the outer through hole is provided with a screw rod, the screw rod passes through the outer through hole, the inner through hole and goes deep into the mounting hole, the screw rod is in threaded connection with the mounting hole, the end part of the screw rod positioned at the outer through hole is provided with a butting part, the aperture of the outer through hole is larger than that of the inner through hole, the connecting part of the outer through hole and the inner through hole forms a step, the lower end of the, the use cost of the hard alloy boring cutter is reduced, the cutter head is not easy to loosen, and the safety is high.

Description

PCD hard alloy boring cutter with replaceable cutter head
Technical Field
The utility model relates to a carbide boring cutter, especially PCD carbide boring cutter that the tool bit can be traded.
Background
The boring head on the market at present generally adopts handle of a knife tool bit integrated into one piece design, and the handle of a knife and the tool bit of the boring cutter of this kind of structure all adopt carbide material, can only give up whole change when the tool bit damages and can not use, and use cost is great.
Disclosure of Invention
The utility model aims at providing a PCD carbide boring cutter that convenient to use, change tool bit convenience, use cost are low, the difficult not hard up tool bit that is changeable of tool bit.
Realize the utility model discloses the technical scheme of purpose as follows:
the PCD hard alloy boring cutter with the replaceable cutter head comprises a cutter handle and the cutter head, wherein one end of the cutter handle is provided with an installation groove, the tool bit is inserted into the mounting groove, the tool shank is provided with an inner through hole communicated with the mounting groove, an outer through hole communicated with the inner through hole and a spring groove communicated with the inner through hole, a spring fixedly connected with the spring groove and a limiting block fixedly connected with the spring are arranged in the spring groove, the tool bit is equipped with the mounting hole that corresponds with interior through-hole, outer through-hole is equipped with the screw rod, the screw rod passes outer through-hole, interior through-hole and goes deep into in the mounting hole, screw rod and mounting hole threaded connection, the tip that the screw rod is located outer through-hole is equipped with butt portion, the aperture of outer through-hole is greater than the aperture of interior through-hole, outer through-hole and interior through-hole junction form the step, the lower extreme of butt portion supports tightly on the step, the stopper include with spring coupling's connecting portion and stretch out the spring groove and support tight spacing portion with the upper end of the butt portion of.
After adopting above-mentioned structure, the tool bit inserts in the mounting groove of handle of a knife, screws up the tool bit on the handle of a knife through the screw rod, and the stopper supports tightly at the upper surface of screw rod butt portion, if the screw rod is not hard up and when outwards moving, thereby the stopper supports tightly the screw rod and prevents the screw rod to rotate, has avoided the screw rod to receive the vibration and not hard up risk at boring cutter during operation, when needing to change the tool bit, only needs to stir the stopper, returns the spring inslot with it and can back out the screw rod through the screwdriver to take out the tool bit and change, the utility model discloses it is convenient to change the tool bit, and the handle of a knife need not adopt the material as expensive with the tool bit, has reduced carbide boring cutter's use cost.
Preferably, in order to facilitate the insertion of the screw rod and prevent the screw rod from loosening and falling, the upper surface of the limiting part of the limiting block is an arc surface, and the lower surface is a plane.
Preferably, in order to facilitate the installation of the limiting block and the spring, the handle of a knife is provided with a spring through hole communicated with the outer through hole, a blocking block fixedly connected with the handle of a knife is arranged in the spring through hole, the outer end of the spring through hole is blocked by the blocking block to form a spring groove, one end of the spring is fixedly connected with the blocking block, and the other end of the spring is fixedly connected with the connecting part of the limiting block.
Preferably, in order to facilitate the installation of the blocking block, the blocking block is in threaded connection with the tool shank or is fixedly connected with the tool shank through a screw.
Preferably, in order to facilitate the installation of the blocking block, the blocking block is welded with the knife handle.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is the handle of a knife, 2 is the tool bit, 3 is the mounting groove, 4 is interior through-hole, 5 is outer through-hole, 6 is the spring groove, 7 is the spring, 8 is the stopper, 9 is the mounting hole, 10 is the screw rod, 11 is butt portion, 12 is the step, 13 is connecting portion, 14 is spacing portion, 15 is the sprue.
Detailed Description
As can be seen from figure 1, the PCD hard alloy boring cutter with replaceable cutter head of the utility model comprises a cutter handle 1 and a cutter head 2, one end of the cutter handle is provided with a mounting groove 3, the cutter head is inserted into the mounting groove, the cutter handle is provided with an inner through hole 4 communicated with the mounting groove, an outer through hole 5 communicated with the inner through hole and a spring groove 6 communicated with the inner through hole, a spring 7 fixedly connected with the spring groove and a stopper 8 fixedly connected with the spring are arranged in the spring groove, the cutter head is provided with a mounting hole 9 corresponding to the inner through hole, the outer through hole is provided with a screw rod 10, the screw rod passes through the outer through hole, the inner through hole and goes deep into the mounting hole, the screw rod is in threaded connection with the mounting hole, the end part of the screw rod positioned at the outer through hole is provided with a butting part 11, the aperture of the outer through hole is larger than that, the stopper includes connecting portion 13 with spring coupling and stretches out the spring groove and supports tight spacing portion 14 with the upper end of the butt portion of screw rod, the upper surface of the spacing portion of stopper is the arc surface, and the lower surface is the plane, the handle of a knife sets up the spring through-hole with outer through-hole intercommunication, be equipped with in the spring through-hole with handle of a knife fixed connection's sprue 15, the sprue blocks up the outer end of spring through-hole in order to form the spring groove, the one end and the sprue fixed connection of spring, the other end and the connecting portion fixed connection of stopper.
As a plurality of embodiments, the blocking piece and the handle may be screwed, fixed by a screw, or directly welded and fixed.
After adopting above-mentioned structure, the tool bit inserts in the mounting groove of handle of a knife, screws up the tool bit on the handle of a knife through the screw rod, and the stopper supports tightly at the upper surface of screw rod butt portion, if the screw rod is not hard up and when outwards moving, thereby the stopper supports tightly the screw rod and prevents the screw rod to rotate, has avoided the screw rod to receive the vibration and not hard up risk at boring cutter during operation, when needing to change the tool bit, only need stir the stopper, can back it and push back the spring inslot and can back out the screw rod through the screwdriver to take out the tool bit and change, the utility model discloses it is convenient to change the tool bit, and the handle of a knife need not adopt the material as expensive as the tool bit, has reduced carbide boring cutter's use cost, has reduced carbide boring cutter's.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (5)

1. PCD carbide boring cutter that tool bit interchangeable, its characterized in that: comprises a knife handle and a knife head, wherein one end of the knife handle is provided with a mounting groove, the knife head is inserted into the mounting groove, the knife handle is provided with an inner through hole communicated with the mounting groove, an outer through hole communicated with the inner through hole and a spring groove communicated with the inner through hole, a spring fixedly connected with the spring groove and a limiting block fixedly connected with the spring are arranged in the spring groove, the tool bit is equipped with the mounting hole that corresponds with interior through-hole, outer through-hole is equipped with the screw rod, the screw rod passes outer through-hole, interior through-hole and goes deep into in the mounting hole, screw rod and mounting hole threaded connection, the tip that the screw rod is located outer through-hole is equipped with butt portion, the aperture of outer through-hole is greater than the aperture of interior through-hole, outer through-hole and interior through-hole junction form the step, the lower extreme of butt portion supports tightly on the step, the stopper include with spring coupling's connecting portion and stretch out the spring groove and support tight spacing portion with the upper end of the butt portion of.
2. The replaceable-bit PCD cemented carbide boring tool as set forth in claim 1, wherein: the upper surface of the limiting part of the limiting block is an arc surface, and the lower surface of the limiting part is a plane.
3. The replaceable-bit PCD cemented carbide boring tool according to any one of claims 1 or 2, wherein: the handle of a knife sets up the spring through-hole with outer through-hole intercommunication, be equipped with in the spring through-hole with handle of a knife fixed connection's sprue, the sprue blocks up the outer end of spring through-hole in order to form the spring groove, the one end and the sprue fixed connection of spring, the connecting portion fixed connection of the other end and stopper.
4. The replaceable-bit PCD cemented carbide boring tool as set forth in claim 3, wherein: the blocking block is in threaded connection with the knife handle or is fixedly connected with the knife handle through a screw.
5. The replaceable-bit PCD cemented carbide boring tool as set forth in claim 3, wherein: the blocking block is welded with the knife handle.
CN201920542183.8U 2019-04-19 2019-04-19 PCD hard alloy boring cutter with replaceable cutter head Expired - Fee Related CN210334393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920542183.8U CN210334393U (en) 2019-04-19 2019-04-19 PCD hard alloy boring cutter with replaceable cutter head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920542183.8U CN210334393U (en) 2019-04-19 2019-04-19 PCD hard alloy boring cutter with replaceable cutter head

Publications (1)

Publication Number Publication Date
CN210334393U true CN210334393U (en) 2020-04-17

Family

ID=70180198

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920542183.8U Expired - Fee Related CN210334393U (en) 2019-04-19 2019-04-19 PCD hard alloy boring cutter with replaceable cutter head

Country Status (1)

Country Link
CN (1) CN210334393U (en)

Similar Documents

Publication Publication Date Title
CN210334393U (en) PCD hard alloy boring cutter with replaceable cutter head
CN207952725U (en) A kind of segmented grooved bit
CN201338119Y (en) Drill bit with replaceable blade
KR20130007089U (en) Processing cutter
CN203265708U (en) Counter bore drill bit
CN210435430U (en) Twist drill with adjustable length
CN210679039U (en) Taper connecting handle drill
CN209902335U (en) Milling cutter with replaceable cutter head
CN201470902U (en) Cutting tool structure
CN209902334U (en) Length-adjustable milling cutter
CN2892332Y (en) Adjustable internal bit
CN212070420U (en) Car transmission shaft is with car turning processing lathe tool subassembly
CN201012482Y (en) Multipurpose bolt driver
CN211758737U (en) Split type hard alloy counter sinking composite drill
CN201105465Y (en) Welding hole saw
CN219169684U (en) Cemented carbide tool bit
CN211640301U (en) Inserted sheet type alloy drill bit
CN207983522U (en) A kind of rubber drill bit
CN204772279U (en) Novel five metals screwdriver
CN218836186U (en) Highly-oriented hard alloy drill bit
CN217964928U (en) Assembled drill bit
CN201592411U (en) Dual purpose screwdriver
CN210548321U (en) Hard alloy drill bit
CN203863088U (en) Drilling bit fixture for digital controlled lathe
CN104338972A (en) Welded alloy drill

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200417