CN218983417U

CN218983417U - PCD molding stepped reamer

Info

Publication number: CN218983417U
Application number: CN202223547056.8U
Authority: CN
Inventors: 陈军祥; 朱正丹; 陈杨
Original assignee: Ruike Weifeng Taizhou Intelligent Technology Co ltd
Current assignee: Ruike Weifeng Taizhou Intelligent Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a PCD molding stepped reamer, and particularly relates to the technical field of reamers, which comprises a portable reamer body, wherein a power shaft is arranged at the bottom of the portable reamer body, a rotating assembly is fixedly connected to the output end of the power shaft, a chip-preventing assembly is fixedly connected to the bottom of the portable reamer body, the rotating assembly is used for removing thin layer metal on the surface of a machined hole, and the chip-preventing assembly is used for preventing chips generated in the working process of the rotating assembly from drifting around. The utility model is designed with the rotating component and the anti-scrap component, a user can insert the extension shaft into the bearing cylinder, the external spline is matched with the internal spline, the design solves the defects in the prior art, the replacement and the installation of the PCD reamer head by the user are greatly facilitated, in addition, in the process of cutting off the thin metal on the surface of the processed hole by the PCD reamer head, the bottom of the telescopic cylinder is always in contact with the cutting table surface, and the telescopic cylinder can avoid the scraps produced in the cutting process from drifting around.

Description

PCD molding stepped reamer

Technical Field

The utility model relates to the technical field of reamers, in particular to a PCD (Poly Crystal Diamond) formed stepped reamer.

Background

PCD reamer is a reamer produced by polycrystalline diamond material, PCD reamer is a rotary cutter for cutting off thin metal on the surface of processed hole, PCD reamer has a rotary finishing cutter with straight edge or spiral edge and is used for reaming or repairing hole, PCD reamer is divided into portable PCD reamer and drilling machine type PCD reamer, portable PCD reamer can be held and moved at will, and the PCD reamer has wide application in the mechanical processing industry.

The following problems exist in the prior art:

under the prior art, the PCD reamer head of portable PCD reamer and organism all adopt the shaft coupling directly to carry out fixed connection generally, when the PCD reamer head need dismantle the change, need dismantle the shaft coupling, just can dismantle the PCD reamer head, and the operation is got up comparatively troublesome, in addition, in PCD reamer head excision work's in-process, the piece that the excision produced wafts everywhere for excision mesa is extremely untidy, and for this reason, we propose a PCD shaping ladder reamer and are used for solving above-mentioned problem.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows:

the utility model provides a PCD shaping ladder reamer, includes portable reamer organism, portable reamer organism bottom is provided with the power shaft, power shaft output fixedly connected with rotates the subassembly, portable reamer organism bottom fixedly connected with prevents bits subassembly, it is used for excision the thin layer metal on processed hole surface to rotate the subassembly, prevent bits subassembly and be used for preventing that the piece that produces from drifting everywhere in the subassembly working process of rotation.

The rotating assembly comprises a PCD reamer head and a receiving barrel, the top end of the receiving barrel is fixedly connected with the output end of the power shaft through a coupler, and the bottom end of the receiving barrel is fixedly connected with a fixing shell.

Preferably, the PCD reamer head top fixedly connected with extension axle, extension axle surface bottom fixedly connected with holding ring, extension axle surface still is provided with the external spline.

Preferably, the internal spline is arranged inside the bearing cylinder and matched with the external spline, the positioning groove is formed in the bottom of the fixing shell, the thread grooves are formed in the positioning groove, and the five thread grooves are distributed around the circumferential direction array of the bearing cylinder.

Preferably, the positioning ring is provided with bolts, the bolts are provided with five corresponding thread grooves, one end of each bolt is provided with external threads, the thread grooves are internally provided with internal threads, and the external threads are matched with the internal threads.

Preferably, the anti-chip assembly comprises a fixed cylinder and a telescopic cylinder, the fixed cylinder is positioned at the outer side of the rotating assembly, the top of the fixed cylinder is fixedly connected with the bottom of the portable reamer body, a sliding groove with an annular structure is formed in the fixed cylinder, and the top of the telescopic cylinder penetrates through the bottom of the fixed cylinder and vertically upwards extends into the sliding groove.

Preferably, the top of the telescopic cylinder is fixedly connected with a sliding ring, the surface of the sliding ring is in sliding connection with the wall of the sliding groove, the surface of the telescopic cylinder is sleeved with a compression spring, one end of the compression spring is fixedly connected with the bottom of the sliding ring, and the other end of the compression spring is fixedly connected with the bottom of the sliding groove.

Preferably, the surface of the portable reamer body is provided with an embedded groove, and a holding rod is fixedly connected in the embedded groove.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

the utility model designs the rotating component and the anti-scrap component, a user can insert the extending shaft into the bearing cylinder, the external spline is matched with the internal spline, the positioning ring enters the positioning groove, the user screws one end of the bolt into the threaded groove, so that the positioning ring is fixed in the positioning groove, the position of the cutter head of the PCD reamer head is also fixed.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of a part of the structure of the present utility model.

Fig. 3 is an exploded view of the rotating assembly of the present utility model.

Fig. 4 is a cross-sectional view of the chip-preventing assembly of the present utility model.

In the figure: 1. a portable reamer body; 11. a power shaft; 12. a built-in groove; 13. a grip; 2. a rotating assembly; 21. PCD reamer head; 22. an extension shaft; 23. a positioning ring; 24. a bolt; 25. a receiving cylinder; 26. a fixed case; 27. a positioning groove; 28. a thread groove; 3. a coupling; 4. a chip-preventing assembly; 41. a fixed cylinder; 42. a telescopic cylinder; 43. a sliding groove; 44. a slip ring; 45. compressing the spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-4, the utility model provides a PCD molding stepped reamer, which comprises a portable reamer body 1, wherein a power shaft 11 is arranged at the bottom of the portable reamer body 1, the output end of the power shaft 11 is fixedly connected with a rotating assembly 2, the power shaft 11 can rotate around the axis of the power shaft to provide power for the operation of the rotating assembly 2, the bottom of the portable reamer body 1 is fixedly connected with a chip prevention assembly 4, the rotating assembly 2 is used for cutting thin-layer metal on the surface of a processed hole, and the chip prevention assembly 4 is used for preventing chips generated in the working process of the rotating assembly 2 from drifting around.

Further, the rotating component 2 comprises a PCD reamer head 21 and a receiving cylinder 25, the top end of the receiving cylinder 25 is fixedly connected with the output end of the power shaft 11 through a coupler 3, the bottom end of the receiving cylinder 25 is fixedly connected with a fixed shell 26, the top end of the PCD reamer head 21 is fixedly connected with an extension shaft 22, the bottom of the outer surface of the extension shaft 22 is fixedly connected with a positioning ring 23, the outer surface of the extension shaft 22 is also provided with an external spline, an internal spline is arranged inside the receiving cylinder 25 and matched with the external spline, the internal spline and the external spline are mutually matched to play a role of power transmission, the bottom of the fixed shell 26 is provided with a positioning groove 27, the inside of the positioning groove 27 is provided with five screw grooves 28, the screw grooves 28 are distributed in an array manner around the circumferential direction of the receiving cylinder 25, the positioning ring 23 is provided with the bolts 24, five bolts 24 are arranged corresponding to the thread grooves 28, one end of each bolt 24 is provided with external threads, the thread grooves 28 are internally provided with internal threads, the external threads are matched with the internal threads, when the PCD reamer head 21 is installed, a user inserts the extension shaft 22 into the receiving cylinder 25, the external splines are matched with the internal splines, the positioning ring 23 enters the positioning groove 27, the user screws one end of each bolt 24 into the thread grooves 28, so that the positioning ring 23 is fixed in the positioning groove 27, the position of the cutter head of the PCD reamer head 21 is also fixed, when the PCD reamer head 21 is detached and replaced, the user unscrews the bolts 24 to replace the PCD reamer head 21 and the whole extension shaft 22, the operation is simple and convenient, and the operation of the user is easy.

Further, the anti-chip assembly 4 comprises a fixed cylinder 41 and a telescopic cylinder 42, the fixed cylinder 41 is located at the outer side of the rotating assembly 2, the top of the fixed cylinder 41 is fixedly connected with the bottom of the portable reamer body 1, a sliding groove 43 with an annular structure is formed in the fixed cylinder 41, the top of the telescopic cylinder 42 penetrates through the bottom of the fixed cylinder 41 and vertically extends upwards into the sliding groove 43, a sliding ring 44 is fixedly connected to the top of the telescopic cylinder 42, the surface of the sliding ring 44 is slidably connected with the groove wall of the sliding groove 43, a compression spring 45 is sleeved on the surface of the telescopic cylinder 42, one end of the compression spring 45 is fixedly connected with the bottom of the sliding ring 44, the other end of the compression spring 45 is fixedly connected with the bottom of the sliding groove 43, when the PCD reamer head 21 cuts thin metal on the surface of a machined hole, the bottom of the telescopic cylinder 42 always abuts against a cutting table surface, when the depth of the PCD reamer head 21 is gradually deepened, the telescopic cylinder 42 gradually contracts into the sliding groove 43, the compression spring 45 stretches under the stretching of the sliding ring 44, the elasticity of the compression spring 45, and the compression spring 45 plays a role in resetting.

Further, the surface of the portable reamer body 1 is provided with a built-in groove 12, a holding rod 13 is fixedly connected in the built-in groove 12, and the holding rod 13 facilitates the grabbing of a user on the portable reamer body 1.

Working principle: in actual operation, the user inserts the extension shaft 22 into the receiving cylinder 25, the external spline is matched with the internal spline, at this time, the positioning ring 23 enters the positioning groove 27, and the user screws one end of the bolt 24 into the threaded groove 28, so that the positioning ring 23 is fixed in the positioning groove 27, and the position of the cutter head of the PCD reamer head 21 is also fixed.

The user holds the holding rod 13 that sets up in built-in groove 12, the power shaft 11 of portable reamer organism 1 rotates around self axis, power shaft 11 rotates and through the synchronous rotation of shaft coupling 3 drive about self axis of accepting a section of thick bamboo 25, accept a section of thick bamboo 25 and drive PCD reamer head 21 through the cooperation of internal spline and external spline and rotate around self axis is synchronous, PCD reamer head 21 cuts the lamellar metal on hole surface that has processed, in the in-process that PCD reamer head 21 was cut, telescopic cylinder 42 bottom is inconsistent with the excision mesa all the time, telescopic cylinder 42 avoids the piece that produces to drift everywhere in the excision process.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The PCD forming stepped reamer comprises a portable reamer body (1) and is characterized in that a power shaft (11) is arranged at the bottom of the portable reamer body (1), the output end of the power shaft (11) is fixedly connected with a rotating assembly (2), the bottom of the portable reamer body (1) is fixedly connected with a chip preventing assembly (4), the rotating assembly (2) is used for cutting thin-layer metal on the surface of a machined hole, and the chip preventing assembly (4) is used for preventing chips generated in the working process of the rotating assembly (2) from drifting around;

the rotating assembly (2) comprises a PCD reamer head (21) and a bearing barrel (25), the top end of the bearing barrel (25) is fixedly connected with the output end of the power shaft (11) through a coupler (3), and the bottom end of the bearing barrel (25) is fixedly connected with a fixing shell (26).

2. The PCD forming step reamer of claim 1, wherein the PCD reamer head (21) is fixedly connected with an extension shaft (22), a positioning ring (23) is fixedly connected with the bottom of the outer surface of the extension shaft (22), and an external spline is further arranged on the outer surface of the extension shaft (22).

3. The PCD forming stepped reamer of claim 1, wherein the receiving cylinder (25) is internally provided with internal splines, the internal splines are matched with external splines, a positioning groove (27) is formed in the bottom of the fixing shell (26), screw grooves (28) are formed in the positioning groove (27), the number of the screw grooves (28) is five, and the number of the screw grooves (28) is distributed around the circumferential direction array of the receiving cylinder (25).

4. The PCD forming stepped reamer according to claim 2, wherein bolts (24) are arranged on the positioning ring (23), five bolts (24) are arranged corresponding to the thread grooves (28), one end of each bolt (24) is provided with external threads, internal threads are arranged in the thread groove (28), and the external threads are matched with the internal threads.

5. The PCD forming stepped reamer according to claim 1, wherein the chip preventing assembly (4) comprises a fixed cylinder (41) and a telescopic cylinder (42), the fixed cylinder (41) is located at the outer side of the rotating assembly (2), the top of the fixed cylinder (41) is fixedly connected with the bottom of the portable reamer body (1), a sliding groove (43) with an annular structure is formed in the fixed cylinder (41), and the top of the telescopic cylinder (42) penetrates through the bottom of the fixed cylinder (41) and vertically extends upwards into the sliding groove (43).

6. The PCD forming stepped reamer of claim 5, wherein a sliding ring (44) is fixedly connected to the top of the telescopic cylinder (42), the surface of the sliding ring (44) is slidably connected with the wall of the sliding groove (43), a compression spring (45) is sleeved on the surface of the telescopic cylinder (42), one end of the compression spring (45) is fixedly connected with the bottom of the sliding ring (44), and the other end of the compression spring (45) is fixedly connected with the bottom of the sliding groove (43).

7. The PCD molded stepped reamer of claim 1, wherein the surface of the portable reamer body (1) is provided with a built-in groove (12), and a holding rod (13) is fixedly connected in the built-in groove (12).