CN210523987U

CN210523987U - PCD reamer capable of being assembled quickly

Info

Publication number: CN210523987U
Application number: CN201920988240.5U
Authority: CN
Inventors: 刘增强; 周坤; 霍北方
Original assignee: Ningbo Vanke Precision Tools Co Ltd
Current assignee: Ningbo Vanke Precision Tools Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-15
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a PCD reamer capable of being assembled quickly, the top end of a cutter bar is provided with a fixed structure, the bottom end of the cutter bar is provided with a conical slot, the inner side wall of the conical slot is provided with a positioning hole, and the side wall of a notch of the conical slot is provided with a positioning through groove; the top surface of the cutter head part is provided with an inserting column, the top end of the inserting column is provided with a blind hole, a through hole is respectively arranged in the blind hole, a spring pin is positioned and installed in the through hole, and the inner end of the spring pin is provided with a limiting block; the blind hole is internally provided with a first reset spring and a movable rod, two ends of the first reset spring respectively abut against the bottom surface of the transverse part of the movable rod and the bottom surface of the blind hole, the side wall of the middle part of the movable rod is provided with two support rods which incline upwards, the top surface of the transverse part of the movable rod is contacted with the bottom surface of the limiting block, the top end of the movable rod extends out of the opening part of the blind hole, and two side walls of the bottom end of the inserted column are provided with positioning convex; and an elastic contact piece is embedded on the bottom surface of the conical slot, and the elastic force of the elastic contact piece is greater than that of the first reset spring. The efficiency of cutter change is promoted, promote thick, smart machining efficiency.

Description

PCD reamer capable of being assembled quickly

Technical Field

The utility model belongs to the technical field of a reamer technique and specifically relates to a but PCD reamer of rapid Assembly.

Background

The reamer is a cutter for finish machining and semi-finish machining, the precision hole of processing is many with welding tool bit portion or tool bit portion and cutter arbor integral type structure on the cutter arbor in the machining trade at present, to the deep hole that the required precision is high, usually will adopt thick reamer to carry out thick reaming earlier, reuse finish reamer carries out the finish reaming, need the tool changing just can accomplish the rough machining and the finish machining of hole respectively, and need to hinder the demolish with whole cutter from the cutter clamp on the processing equipment during the tool changing, need demolish with cutter clamp mounting (bolt) earlier during demolising, then loosen the cutter clamp and demolish thick reamer, then pack the finish reamer into in the cutter clamp, rethread mounting (bolt) lock the cutter clamp and carry out fixed cutter, its cutter replacement mode makes the fixed comparatively loaded down with trivial details to the cutter, influence the efficiency of processing operation.

Disclosure of Invention

The utility model aims at solving the not enough and a but a PCD reamer of rapid Assembly of its structure promotion tool changing speed between finish reamer and the rough reamer of design of above-mentioned technique.

The utility model relates to a PCD reamer capable of being assembled quickly, which comprises a cutter bar and a cutter head part, wherein the top end of the cutter bar is provided with a fixed structure, the bottom end of the cutter bar is provided with a tapered slot with a big top and a small bottom, the inner side wall of the tapered slot is provided with two positioning holes which are arranged correspondingly, and the side wall of the notch of the tapered slot is provided with two positioning through grooves which are arranged correspondingly; the top surface of the cutter head part is provided with an inserting column, the top end of the inserting column is provided with a blind hole, two corresponding side walls in the blind hole are provided with through holes respectively corresponding to the positions of the positioning holes, a spring pin is positioned and installed in the through holes, and the inner end of the spring pin is provided with a limiting block; the blind hole is internally provided with a first reset spring and a flexible rod shaped like a Chinese character 'jieli', two ends of the first reset spring respectively abut against the bottom surface of the transverse part of the flexible rod and the bottom surface of the blind hole, the side wall of the middle part of the flexible rod is provided with two support rods inclining upwards, the top surface of the transverse part of the flexible rod is contacted with the bottom surface of the limiting block, the top end of the flexible rod extends out of the opening part of the blind hole, and two side walls of the bottom end of the inserted column are provided with positioning convex strips respectively corresponding to; after the inserting column is completely inserted into the conical inserting groove, the movable rod is driven to move downwards, the top surface of the transverse part of the movable rod is separated from the bottom surface of the limiting block, the first reset spring is compressed, the end part of the support rod is abutted against the inner side end of the spring pin, the pin head of the spring pin is driven to be inserted into the positioning hole of the conical inserting groove, and the positioning convex strip is correspondingly inserted into the positioning through groove; the elastic contact piece corresponding to the position of the movable rod is embedded in the bottom surface of the conical slot, the top end of the movable rod is in contact with the bottom surface of the elastic contact piece, the cutter bar is provided with a long through hole communicated with the conical slot, the bottom end of the longitudinal portion of the movable rod is provided with a convex block, the convex block penetrates through the long through hole and extends out, and the elastic force of the elastic contact piece is greater than the elastic force of the first reset spring.

Further preferably, the tool bit portion includes reamer piece and T type cylinder, the longitudinal portion of T type cylinder is for inserting the post, its horizontal portion bottom surface has reference column and a plurality of screw hole, the top surface of reamer piece and the laminating of the horizontal portion bottom surface of T type cylinder, have the perforation that corresponds with each screw hole respectively on the reamer piece, after running through the bolt in the perforation, bolt and screw hole threaded connection fix the reamer piece, the location sand grip is located on the longitudinal portion bottom lateral wall of T type cylinder, its horizontal portion top surface of back and the laminating of the bottom face of cutter arbor in the longitudinal portion of T type cutter arbor inserts in the toper slot. The cutting edges made of PCD materials are fixed in the cutting edge fixing grooves on the peripheral sides of the reamer blades through sintering, the PCD reamer cutting edges enable the drilling reamer to have the characteristics of high hardness, high compressive strength, good heat conductivity and wear resistance, the cutting efficiency is higher, the drilling reamer is not easy to wear and break, and compared with common blades, the service life of the drilling reamer is prolonged by more than 9 times.

Preferably, the spring pin comprises a pin column and a second return spring sleeved on the pin column, and two ports of the through hole are respectively provided with a limit convex ring; one end of a return spring II is abutted against a limiting convex ring which can be actuated through the opening at the outer side of the through hole, and the other end of the return spring II is fixed with the inner side end of the pin column; the limiting block is arranged at the inner side end of the pin column.

Further preferably, elasticity conflict piece is including the recess of locating the tank bottom surface department of toper slot and T type fore-set and the spring in the recess, recess and the recess that the movable rod position corresponds, and the spring housing withstands vertical portion in the T type, and the horizontal bottom surface that the T type withstood is contradicted with the top of movable rod, and the elasticity of spring is greater than the elasticity of reset spring one.

Further preferably, the fixed knot on the cutter arbor constructs including the microscler sand grip of displacement cutter arbor lateral part, be located the reference column and the fixed orifices on the cutter arbor of cutter arbor top.

Further preferably, the drill way department location of blind hole is fixed with the holding ring (the holding ring is fixed with the drill way interference fit of blind hole), and the holding ring hole is run through on the top of movable rod, and its structure is comparatively firm when making the lift activity of activity.

The utility model discloses a but PCD reamer of rapid Assembly, its cutter arbor is fixed back with the processing equipment, only needs to make tool setting head portion carry out rapid Assembly and dismantlement through mutually supporting between spring catch, through-hole, locating hole, movable rod and the vaulting pole, has promoted the efficiency that the cutter was changed, has further promoted thick, smart machining efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is an exploded view of example 1;

fig. 3 is a schematic view of the entire structure of embodiment 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1-3, the PCD reamer capable of being assembled quickly described in this embodiment includes a cutter bar 1 and a cutter head portion 2, a top end of the cutter bar 1 has a fixing structure, a bottom end of the cutter bar 1 has a tapered slot 13 with a large top and a small bottom, an inner side wall of the tapered slot 13 has two positioning holes 131 disposed correspondingly to each other, and a side wall of a notch of the tapered slot 13 has two positioning through slots 132 disposed correspondingly to each other; the top surface of the cutter head part 2 is provided with an inserting column 211, the top end of the inserting column 211 is provided with a blind hole 2111, two corresponding side walls in the blind hole 2111 are provided with through holes 2112 corresponding to the positions of the positioning holes 131 respectively, a spring pin 6 is positioned and installed in the through 2112 hole, and the inner end of the spring pin 6 is provided with a limiting block 611; the blind hole 2111 is internally provided with a first reset spring 4 and a horizontal movable rod 5, two ends of the first reset spring 4 respectively abut against the bottom surface of the transverse part of the movable rod 5 and the bottom surface of the blind hole 2111, the side wall of the middle part of the movable rod 5 is provided with two supporting rods 52 which are inclined upwards, the top surface of the transverse part of the movable rod 5 is contacted with the bottom surface of the limiting block 611, the top end of the movable rod 5 extends out of the opening part of the blind hole 2111, and two side walls of the bottom end of the inserted column 211 are provided with positioning convex strips 212 respectively corresponding to the positions of the two positioning through grooves 132; after the inserting column 211 is completely inserted into the tapered inserting groove 13, the movable rod 5 is driven to move downwards, so that the top surface of the transverse part of the movable rod 5 is separated from the bottom surface of the limiting block 611, the first return spring 4 is compressed, the end part of the support rod 52 is abutted against the inner side end of the spring pin 6, the pin head of the spring pin 6 is driven to be inserted into the positioning hole 131 of the tapered inserting groove 13, and the positioning convex strip 212 is correspondingly inserted into the positioning through groove 132; the elastic contact piece corresponding to the position of the movable rod 5 is embedded in the bottom surface of the conical slot 13, the top end of the movable rod is abutted to the bottom surface of the elastic contact piece, the cutter bar is provided with a long through hole communicated with the conical slot, the bottom end of the longitudinal part of the movable rod is provided with a convex block, the convex block penetrates through the long through hole and extends out, and the elastic force of the elastic contact piece is greater than the elastic force of the first reset spring.

The spring pin 6 designed for better resetting of the pin head comprises a pin 61 and a second return spring 62 sleeved on the pin 61, and two ports of the through hole 2112 are respectively provided with a limit convex ring 2113; one end of a return spring II is abutted against a limiting convex ring which can be actuated through the opening at the outer side of the through hole, and the other end of the return spring II is fixed with the inner side end of the pin column; the stop block 611 is disposed at the inboard end of the pin 61.

The working principle of the structure is as follows: when the cutter head part is assembled, the top end of the inserted column is inserted into the conical slot, then the position of the positioning convex strip on the inserted column corresponds to the position of the positioning slot, the inserted column is continuously moved upwards and inserted until the top end of the movable rod is abutted against the elastic abutting part, at the moment, the elastic force of the elastic abutting part is larger than the elastic force of the first return spring, so that the elastic abutting part is difficult to be compressed, the first return spring is compressed when the inserted column is continuously moved upwards, the movable rod is continuously moved downwards, in the process of moving downwards, the pin head of the spring pin is enabled to extend out from the outer side port of the through hole (the pin head of the spring pin extends out under the action of a certain gap between the side wall of the inserted column and the pin head of the spring pin, wherein the gap is generated under the action of the conical slot) in the process that the obliquely arranged support rod is driven to move downwards by the movable rod, thereby enabling the movable rod to completely move downwards after the inserted column is completely inserted into the conical slot, the top surface of the transverse part of the movable rod is separated from the bottom surface of the limiting block, the first reset spring is completely compressed, the end part of the support rod is abutted against the inner side end of the spring pin to enable the pin head of the spring pin to be inserted into the positioning hole of the conical slot, the positioning convex strip is correspondingly inserted into the positioning through groove, and the support rod is abutted against the limiting block for limiting; the knife head part is detachable, the lug is pushed to move upwards by hand or an auxiliary tool, the movable rod is pushed to move upwards by the upward movement of the lug, the elastic contact part is compressed by the upward movement of the movable rod until the support rod is separated from the spring pin, and the pin column head part of the spring pin retracts into the through hole under the action of the second return spring, so that the knife head part can be directly pulled out of the conical slot; therefore, the tool bit part is disassembled and replaced according to the operation mode when rough and fine reaming is carried out, and the disassembly and the assembly are convenient.

In this embodiment, the tool head 2 includes a reamer 22 and a T-shaped column 21, the longitudinal portion of the T-shaped column 21 is a post 211, the bottom surface of the transverse portion of the T-shaped column 21 has a positioning post 213 and a plurality of threaded holes 214, the top surface of the reamer 22 is attached to the bottom surface of the transverse portion of the T-shaped column 21, the reamer 22 has through holes 222 corresponding to the threaded holes 214, after bolts penetrate through the through holes 222, the bolts are screwed to the threaded holes 214 to fix the reamer 22, the positioning protruding strip 212 is disposed on the sidewall of the bottom end of the longitudinal portion of the T-shaped column 21, and the top surface of the transverse portion of the T-shaped tool bar 21 is attached to the bottom end surface of the tool bar 1 after the longitudinal portion of. The tool setting head part is more reasonable and reliable in design structure, more firm and reliable in positioning and fixing, and stability of the tool during use is improved. The cutting edges made of PCD materials are fixed in the cutting edge fixing grooves on the peripheral sides of the reamer blades through sintering, the PCD reamer cutting edges enable the drilling reamer to have the characteristics of high hardness, high compressive strength, good heat conductivity and wear resistance, the cutting efficiency is higher, the drilling reamer is not easy to wear and break, and compared with common blades, the service life of the drilling reamer is prolonged by more than 9 times.

In this embodiment, the elastic contact member 7 includes a groove 133 formed in the bottom surface of the tapered slot 13, and a T-shaped post 71 and a spring 72 in the groove 133, the groove corresponds to the position of the movable rod, the spring is sleeved on the T-shaped contact longitudinal portion, the bottom surface of the T-shaped contact transverse portion contacts the top end of the movable rod, and the elastic force of the spring is greater than the elastic force of the first reset spring 4. Its simple structure is reliable to the design is more reasonable, the dismouting of being convenient for, the one end of spring and the tank bottom welded fastening of recess moreover, and the other end of spring and the fixed linking to each other of the horizontal portion of T type cylinder.

In this embodiment, the fixing structure on the tool bar 1 includes a long protruding strip 12 at the side of the tool bar, a positioning column 11 at the top end of the tool bar 1, and a fixing hole 14 on the tool bar 1. Its structure makes the cutter arbor when the location is fixed, and the cutter arbor inserts the downthehole of processing equipment cutter clamp, and the reference column on cutter arbor top inserts in the hole bottom surface locating hole that the cutter pressed from both sides, and threaded connection's bolt inserts in the fixed orifices on the cutter clamp, and microscler sand grip inserts in the downthehole microscler constant head tank of cutter clamp to fix the cutter arbor, thereby make the cutter arbor fixed firm reliable.

In this embodiment, the drill way department location of blind hole is fixed with the holding ring (the holding ring is fixed with the drill way interference fit of blind hole), and the holding ring hole is run through on the top of movable rod, and its structure is comparatively firm when making the lift activity of activity.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. A PCD reamer capable of being assembled quickly comprises a cutter bar and a cutter head part, wherein the top end of the cutter bar is provided with a fixed structure, and the PCD reamer is characterized in that the bottom end of the cutter bar is provided with a tapered slot with a large upper part and a small lower part, the inner side wall of the tapered slot is provided with two positioning holes which are arranged correspondingly, and the side wall of the notch of the tapered slot is provided with two positioning through grooves which are arranged correspondingly;

the top surface of the cutter head part is provided with an inserting column, the top end of the inserting column is provided with a blind hole, two corresponding side walls in the blind hole are provided with through holes respectively corresponding to the positions of the positioning holes, a spring pin is positioned and installed in the through holes, and the inner end of the spring pin is provided with a limiting block; the blind hole is internally provided with a first reset spring and a flexible rod shaped like a Chinese character 'jieli', two ends of the first reset spring respectively abut against the bottom surface of the transverse part of the flexible rod and the bottom surface of the blind hole, the side wall of the middle part of the flexible rod is provided with two support rods inclining upwards, the top surface of the transverse part of the flexible rod is contacted with the bottom surface of the limiting block, the top end of the flexible rod extends out of the opening part of the blind hole, and two side walls of the bottom end of the inserted column are provided with positioning convex strips respectively corresponding to;

after the inserting column is completely inserted into the conical inserting groove, the movable rod is driven to move downwards, the top surface of the transverse part of the movable rod is separated from the bottom surface of the limiting block, the first reset spring is compressed, the end part of the support rod is abutted against the inner side end of the spring pin, the pin head of the spring pin is driven to be inserted into the positioning hole of the conical inserting groove, and the positioning convex strip is correspondingly inserted into the positioning through groove;

the elastic contact piece corresponding to the position of the movable rod is embedded in the bottom surface of the conical slot, the top end of the movable rod is in contact with the bottom surface of the elastic contact piece, the cutter bar is provided with a long through hole communicated with the conical slot, the bottom end of the longitudinal portion of the movable rod is provided with a convex block, the convex block penetrates through the long through hole and extends out, and the elastic force of the elastic contact piece is greater than the elastic force of the first reset spring.

2. The PCD reamer capable of being assembled rapidly according to claim 1, wherein the cutter head includes a reamer blade and a T-shaped cylinder, the longitudinal portion of the T-shaped cylinder is a plug, the bottom surface of the transverse portion of the T-shaped cylinder is provided with a positioning column and a plurality of threaded holes, the top surface of the reamer blade is attached to the bottom surface of the transverse portion of the T-shaped cylinder, the reamer blade is provided with through holes corresponding to the threaded holes, after a bolt penetrates through the through holes, the bolt is in threaded connection with the threaded holes to fix the reamer blade, the positioning convex strip is arranged on the side wall of the bottom end of the longitudinal portion of the T-shaped cylinder, and after the longitudinal portion of the T-shaped cutter bar is inserted into the tapered slot, the top surface.

3. The rapidly assembled PCD reamer of claim 1 or 2, wherein the spring pin comprises a pin column and a second return spring sleeved on the pin column, and two end ports of the through hole are respectively provided with a limit convex ring; one end of a return spring II is abutted against a limiting convex ring which can be actuated through the opening at the outer side of the through hole, and the other end of the return spring II is fixed with the inner side end of the pin column; the limiting block is arranged at the inner side end of the pin column.

4. The rapidly assemblable PCD reamer of claim 1 or 2, wherein the elastic contact member comprises a groove formed at the bottom surface of the tapered slot, and a T-shaped stud and a spring arranged in the groove, the groove corresponds to the position of the movable rod, the spring is sleeved on the T-shaped contact longitudinal portion, the bottom surface of the transverse portion of the T-shaped contact abuts against the top end of the movable rod, and the elastic force of the spring is greater than that of the first return spring.

5. The PCD reamer capable of being assembled quickly according to claim 3, wherein the elastic abutting part comprises a groove arranged at the bottom surface of the groove of the tapered slot, a T-shaped ejecting column and a spring, the T-shaped ejecting column and the spring are arranged in the groove, the groove corresponds to the position of the movable rod, the spring is sleeved on the T-shaped abutting longitudinal part, the bottom surface of the transverse part abutted by the T-shaped abutting against the top end of the movable rod, and the elastic force of the spring is greater than that of the first return spring.

6. The rapidly assemblable PCD reamer of claim 3 wherein the securing structure on the shank includes elongated ribs to displace the sides of the shank, locating posts at the top of the shank and securing holes in the shank.

7. The rapidly assemblable PCD reamer of claim 4, wherein the securing structure on the shank comprises elongated ribs to displace the sides of the shank, locating posts at the top of the shank and securing holes in the shank.

8. The rapidly assemblable PCD reamer of claim 5, wherein the securing structure on the shank comprises elongated ribs to displace the sides of the shank, locating posts at the top of the shank and securing holes in the shank.