CN216370310U

CN216370310U - Reamer with locking mechanism

Info

Publication number: CN216370310U
Application number: CN202122576815.2U
Authority: CN
Inventors: 张海滨
Original assignee: Zhejiang Zweima Precision Technology Co ltd
Current assignee: Zhejiang Zweima Precision Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-26
Anticipated expiration: 2031-10-25

Abstract

The utility model relates to a hole expanding cutter with a locking mechanism, which comprises a cutter body, wherein the front end of the cutter body is provided with a cutter head, the left side and the right side of the front end surface of the cutter body are symmetrically provided with mounting pieces, the rear side of the outer end surface of the cutter head is provided with mounting grooves corresponding to the two mounting pieces, the two mounting pieces are respectively provided with a first threaded hole, the two mounting grooves are provided with a second threaded hole, the first threaded holes and the second threaded holes are connected through bolts, the rear end of the cutter body is provided with a first cutter head, the front end surface of the first cutter head is provided with a first mounting hole, the front end surface of the first cutter head is provided with a fixed block, a plurality of fixing blocks are arranged in the circumferential direction of the fixed block, positioning rods are arranged on the plurality of fixed blocks in a sliding manner, positioning holes are formed in the cutter body, positioning rings are arranged at the ends of the positioning rods, which are far away from the cutter body, and springs are arranged between the positioning rings and the fixed blocks; due to the design of the cutter head, the cost is reduced; due to the design of the upper reaming cutter head and the lower reaming cutter head, the practicability is improved; and the second cutter head is designed to be stably locked.

Description

Reamer with locking mechanism

Technical Field

The utility model relates to the technical field of reamer locking, in particular to a reamer with a locking mechanism.

Background

In the machining process, a machine tool is an important machining tool, at present, before the machine tool is used for reaming, firstly, a workpiece needs to be drilled, and reaming operation is realized on the drilled hole by using a reaming cutter while drilling, namely, reaming is carried out, namely, the bottom of the drilled hole or the bottom of some types of foundation piers is enlarged so as to increase the load bearing area of the drilled hole; reduce hollow blank wall thickness and increase the forging process of its internal and external diameters, current patent such as patent number 200920087878.8, including the cutter body, a fixed base, tool bit and guide positioning pole etc, though the device simple structure, low in production cost, exempt from to use the gasket, exempt from the adjustment, only need just can very conveniently and fix a position easily through the guide positioning pole on the cutter body, the location is accurate, can effectively guarantee the machining precision, installation and tool changing are also relatively quick, only need just can install and tool changing work conveniently through the installation screw thread on the cutter body, but the device wholly lacks suitable locking mechanism when using, the inconvenient change of tool bit, and the inconvenient regulation of reaming size.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a reamer with a locking mechanism.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a hole expanding cutter with a locking mechanism comprises a cutter body, wherein a cutter head is arranged at the front end of the cutter body, mounting pieces are symmetrically arranged on the left side and the right side of the front end face of the cutter body, mounting grooves are formed in the rear side of the outer end face of the cutter head and correspond to the two mounting pieces, first threaded holes are formed in the two mounting pieces, second threaded holes are formed in the two mounting grooves and correspond to the first threaded holes, the first threaded holes and the second threaded holes are connected through bolts, a first cutter head is arranged at the rear end of the cutter body, a first mounting hole is formed in the front end face of the first cutter head and corresponds to the cutter body, a fixing block is arranged on the front end face of the first cutter head, a plurality of positioning rods are arranged in the circumferential direction of the fixing block in a sliding mode and are arranged on the plurality of fixing blocks in a sliding mode, positioning holes are formed in the cutter body and correspond to the plurality of positioning rods, and a positioning ring is arranged at one end, far away from the cutter body, respectively, and a spring is arranged between the positioning ring and the fixing block.

Preferably in further, cutter body outer end front side symmetry is equipped with reaming blade disc and lower reaming blade disc, go up reaming blade disc outer end symmetry and seted up the third screw hole, third screw hole downwardly extending runs through go up the reaming blade disc, correspond two on the reaming blade disc down the fourth screw hole has all been seted up to the third screw hole, third screw hole and fourth screw hole pass through bolted connection, easy to assemble.

Preferably in further, both ends all are equipped with the locating piece about the cutter body, it all corresponds to go up reaming blade disc and reaming blade disc opposite face one side down the constant head tank has been seted up to the locating piece, convenient location.

In further preferred, go up reaming blade disc and lower reaming blade disc and all be provided with a plurality ofly, it is a plurality of go up reaming blade disc and lower reaming blade disc variation in size setting, conveniently adjust the reaming size.

Preferably in a further aspect, a second cutter disc is arranged in front of the first cutter disc, a second mounting hole is formed in the second cutter disc corresponding to the cutter body, a connecting rod is connected between the first cutter disc and the second cutter disc, and a plurality of connecting rods are arranged in the circumferential direction of the connecting rod, so that the positioning is convenient.

Preferably in the further, the outer end face of the second cutter disc is provided with a plurality of first locking holes in the circumferential direction, the cutter body is correspondingly provided with a plurality of second locking holes in the first locking holes, and the first locking holes and the second locking holes are connected through bolts to ensure the locking effect.

Preferably, the rear end face of the first cutter head is provided with a connecting shaft, so that the first cutter head is convenient to assemble with the outside.

(III) advantageous effects

Compared with the prior art, the utility model provides a reamer with a locking mechanism, which has the following beneficial effects:

according to the tool bit, the tool bit and the tool body are correspondingly installed, the installation piece is matched with the installation groove for limiting, the bolt penetrates through the first threaded hole and the second threaded hole to be screwed and fixed, the tool bit is installed and used for a long time, the tool bit is seriously abraded, the bolt between the first threaded hole and the second threaded hole is taken out, the tool bit is replaced, the tool bit is convenient to disassemble, assemble and replace, and the cost is reduced; the upper reaming cutter disc and the lower reaming cutter disc are designed, the upper reaming cutter disc and the lower reaming cutter disc are properly selected according to reaming requirements, the upper reaming cutter disc and the lower reaming cutter disc are installed, the positioning block and the positioning groove are matched for positioning, and the bolt penetrates through the third threaded hole and the fourth threaded hole to be screwed and fixed, so that the upper reaming cutter disc and the lower reaming cutter disc are stably connected, the reaming size is conveniently adjusted, and the practicability of the device is improved; the design of second blade disc, pass the second mounting hole of second blade disc with the cutter body, the pulling has the locating lever of holding ring, the spring extension between holding ring and the fixed block, the cutter body inserts in the first mounting hole of first blade disc, loosen the holding ring, the spring is retracted, it inserts in the locating hole to drive the locating lever, realize preliminary location back, first locking hole on the second blade disc is aligned with the second locking hole on the cutter body, the bolt passes first locking hole and second locking hole, realize the locking installation of cutter body.

Drawings

Fig. 1 is a schematic view of a preferred overall structure of a reamer with a locking mechanism according to the present invention;

fig. 2 is a schematic diagram of a preferred first cutter head and second cutter head mating structure of a reamer with a locking mechanism according to the present invention;

FIG. 3 is a schematic view of a preferred cutting head configuration of a reamer with a locking mechanism of the present invention;

fig. 4 is an exploded schematic view of a preferred upper reamer head and lower reamer head mating structure of a reamer with a locking mechanism of the present invention;

fig. 5 is a schematic diagram of a preferred tool body and locating block matching structure of the reamer with the locking mechanism.

In the figure: 1. a cutter body; 2. a cutter head; 3. mounting a sheet; 4. mounting grooves; 5. a first threaded hole; 6. a second threaded hole; 7. a first cutter head; 8. a first mounting hole; 9. a fixed block; 10. positioning a rod; 11. positioning holes; 12. a positioning ring; 13. a spring; 14. an upper reaming cutter head; 15. a lower reaming cutter head; 16. a third threaded hole; 17. a fourth threaded hole; 18. positioning blocks; 19. positioning a groove; 20. a connecting shaft; 21. a second cutter head; 22. a second mounting hole; 23. a connecting rod; 24. a first locking hole; 25. a second locking hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1, 2, 3 and 5, a reamer with a locking mechanism comprises a cutter body 1, a cutter head 2 is arranged at the front end of the cutter body 1, mounting pieces 3 are symmetrically arranged on the left side and the right side of the front end surface of the cutter body 1, mounting grooves 4 are arranged on the rear side of the outer end surface of the cutter head 2 corresponding to the two mounting pieces 3, first threaded holes 5 are respectively arranged on the two mounting pieces 3, second threaded holes 6 are respectively arranged on the two mounting grooves 4 corresponding to the first threaded holes 5, the first threaded holes 5 are connected with the second threaded holes 6 through bolts, a first cutter disc 7 is arranged at the rear end of the cutter body 1, a first mounting hole 8 is arranged on the front end surface of the first cutter disc 7 corresponding to the cutter body 1, a fixing block 9 is arranged on the front end surface of the first cutter disc 7, a plurality of fixing blocks 9 are arranged in the circumferential direction, positioning rods 10 are respectively arranged on the fixing blocks 9 in a sliding manner, positioning holes 11 are respectively arranged on the cutter body 1 corresponding to the positioning rods 10, and positioning rings 12 are arranged at the ends, far away from the cutter body 1, of the positioning rods 10, and springs 13 are arranged between the positioning rings 12 and the fixing blocks 9.

Referring to fig. 1, 4 and 5, in this embodiment, an upper reaming cutter 14 and a lower reaming cutter 15 are symmetrically disposed on the front side of the outer end surface of a cutter body 1, third threaded holes 16 are symmetrically disposed on the outer end surface of the upper reaming cutter 14, the third threaded holes 16 extend downward to penetrate through the upper reaming cutter 14, fourth threaded holes 17 are disposed in the lower reaming cutter 15 corresponding to the two third threaded holes 16, the third threaded holes 16 and the fourth threaded holes 17 are connected by bolts, positioning blocks 18 are disposed at the upper and lower ends of the cutter body 1, positioning grooves 19 are disposed in one side of the opposite surfaces of the upper reaming cutter 14 and the lower reaming cutter 15 corresponding to the positioning blocks 18, the upper reaming cutter 14 and the lower reaming cutter 15 are provided with a plurality of upper reaming cutters 14 and lower reaming cutters 15, the upper reaming cutter 14 and the lower reaming cutter 15 are selected according to the reaming needs, and the upper reaming cutter 14 and the lower reaming cutter 15 are installed, the positioning block 18 and the positioning groove 19 are matched for positioning, and bolts penetrate through the third threaded holes 16 and the fourth threaded holes 17 to be screwed and fixed, so that the upper reaming cutter disc 14 and the lower reaming cutter disc 15 are stably connected.

Referring to fig. 1, 2 and 5, in the present embodiment, a second cutter disc 21 is disposed in front of the first cutter disc 7, a second mounting hole 22 is disposed on the second cutter disc 21 corresponding to the cutter body 1, a plurality of connecting rods 23 are connected between the first cutter disc 7 and the second cutter disc 21, a plurality of connecting rods 23 are disposed in the circumferential direction, a first locking hole 24 is disposed on the outer end surface of the second cutter disc 21, a plurality of first locking holes 24 are disposed in the circumferential direction, a plurality of second locking holes 25 are disposed on the cutter body 1 corresponding to the plurality of first locking holes 24, the first locking holes 24 and the second locking holes 25 are connected by bolts, a rear end surface of the first cutter disc 7 is provided with a bolt 20, the cutter body 1 is inserted through the second mounting hole 22 of the second cutter disc 21, the first locking hole 24 on the second cutter disc 21 is aligned with the second locking hole 25 on the cutter body 1, the bolt is inserted through the first locking hole 24 and screwed with the second locking hole 25, the whole device is correspondingly installed with an external machine tool through a connecting shaft 20.

Example two:

in conclusion, when the device is used, firstly, the whole device is assembled, the tool bit 2 and the tool body 1 are correspondingly installed, the installation piece 3 is matched with the installation groove 4 in a limiting mode, the bolt penetrates through the first threaded hole 5 and the second threaded hole 6 to be screwed and fixed, the installation of the tool bit 2 is realized, after the installation of the tool bit 2 is completed, the appropriate upper reaming cutter disc 14 and lower reaming cutter disc 15 are selected according to reaming requirements, the upper reaming cutter disc 14 and the lower reaming cutter disc 15 are installed, the positioning block 18 is matched with the positioning groove 19 to be positioned, the bolt penetrates through the third threaded hole 16 and the fourth threaded hole 17 to be screwed and fixed, the stable connection of the upper reaming cutter disc 14 and the lower reaming cutter disc 15 is realized, and after the connection is completed, the tool body 1 is matched with the first cutter disc 7 and the second cutter disc 21 to be installed.

Example three:

in conclusion, when the device is used, firstly, the cutter body 1 penetrates through the second mounting hole 22 of the second cutter disc 21, the positioning rod 10 with the positioning ring 12 is pulled, the spring 13 between the positioning ring 12 and the fixing block 9 extends, the cutter body 1 is inserted into the first mounting hole 8 of the first cutter disc 7, the positioning ring 12 is loosened, the spring 13 retracts to drive the positioning rod 10 to be inserted into the positioning hole 11, after primary positioning is achieved, the first locking hole 24 in the second cutter disc 21 is aligned with the second locking hole 25 in the cutter body 1, a bolt penetrates through the first locking hole 24 and the second locking hole 25 to achieve locking mounting of the cutter body 1, the whole device is correspondingly mounted with an external machine tool through the connecting shaft 20 and is put into use, the cutter head 2 is seriously worn after long-time use, the bolt between the first threaded hole 5 and the second threaded hole 6 is taken out, and the cutter head 2 is replaced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The hole expanding cutter with the locking mechanism comprises a cutter body (1), wherein a cutter head (2) is arranged at the front end of the cutter body (1), and is characterized in that installation pieces (3) are symmetrically arranged on the left side and the right side of the front end face of the cutter body (1), the rear side of the outer end face of the cutter head (2) corresponds to two installation pieces (3) and are provided with installation grooves (4), two installation pieces (3) are provided with first threaded holes (5), two installation grooves (4) are provided with second threaded holes (6) corresponding to the first threaded holes (5), the first threaded holes (5) and the second threaded holes (6) are connected through bolts, the rear end of the cutter body (1) is provided with a first cutter head (7), the front end face of the first cutter head (7) corresponds to the cutter body (1) and is provided with a first installation hole (8), the front end face of the first cutter head (7) is provided with a fixed block (9), be provided with a plurality ofly on fixed block (9) circumferencial direction, it is a plurality of all slide on fixed block (9) and be equipped with locating lever (10), it is a plurality of to correspond on cutter body (1) locating lever (10) have all seted up locating hole (11), and are a plurality of locating lever (10) are kept away from cutter body (1) one end all is equipped with holding ring (12), be equipped with spring (13) between holding ring (12) and fixed block (9).

2. The reamer with the locking mechanism of claim 1, wherein: cutter body (1) outer end face front side symmetry is equipped with reaming blade disc (14) and lower reaming blade disc (15), go up reaming blade disc (14) outer end face symmetry and seted up third screw hole (16), third screw hole (16) downwardly extending runs through go up reaming blade disc (14), correspond two down on reaming blade disc (15) fourth screw hole (17) have all been seted up in third screw hole (16), third screw hole (16) and fourth screw hole (17) pass through bolted connection.

3. The reamer with the locking mechanism of claim 2, wherein: both ends all are equipped with locating piece (18) about cutter body (1), go up reaming blade disc (14) and reaming blade disc (15) opposite face one side all corresponds locating slot (19) have been seted up in locating piece (18).

4. The reamer with the locking mechanism of claim 3, wherein: go up reaming blade disc (14) and under reaming blade disc (15) and all be provided with a plurality ofly, it is a plurality of go up reaming blade disc (14) and under reaming blade disc (15) variation in size setting.

5. The reamer with the locking mechanism of claim 1, wherein: first blade disc (7) the place ahead is equipped with second blade disc (21), correspond on second blade disc (21) second mounting hole (22) have been seted up in cutter body (1), it is equipped with connecting rod (23) to connect between first blade disc (7) and second blade disc (21), be provided with a plurality ofly on connecting rod (23) the circumferencial direction.

6. The reamer with the locking mechanism of claim 5, wherein: first locking hole (24) have been seted up to second blade disc (21) outer terminal surface, be provided with a plurality ofly on first locking hole (24) the circumferencial direction, it is a plurality of to correspond on cutter body (1) second locking hole (25) have all been seted up in first locking hole (24), bolted connection is passed through in first locking hole (24) and second locking hole (25).

7. The reamer with the locking mechanism of claim 5, wherein: and a connecting shaft (20) is arranged on the rear end face of the first cutter head (7).