CN218656971U

CN218656971U - Tube plate machining tool

Info

Publication number: CN218656971U
Application number: CN202223170204.9U
Authority: CN
Inventors: 王国君; 徐兵辉; 周涛涛; 李佳勇; 毛武龙; 朱义乐; 陈玉莹; 周宇; 罗建平; 李志强
Original assignee: Zhejiang Chengxin Pharm & Chem Equipment Co ltd
Current assignee: Zhejiang Chengxin Pharm & Chem Equipment Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-21
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a tube sheet processing cutter belongs to cutter technical field. It has solved the problem that current tube sheet processing need use two kinds of cutters. The cutter comprises a columnar cutter body, wherein a drill bit body used for drilling is fixedly connected to one end of the cutter body, a concave groove is formed in the circumferential outer side wall of the cutter body in the axial direction of the cutter body, a spiral chip groove is formed in the circumferential outer side wall of the cutter body and penetrates through the drill bit body, a chamfering body used for chamfering is fixedly connected to the groove wall of the chip groove, and the chamfering body is located in the axial middle of the cutter body. The pipe plate processing cutter has the advantages that the drilling and chamfering of the pipe plate can be realized through one process.

Description

Tube plate machining tool

Technical Field

The utility model belongs to the technical field of the cutter, a tube sheet processing cutter is related to.

Background

A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. The drill is one of the tools, and is used for drilling through holes or blind holes in solid materials and reaming the existing holes. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills.

A plurality of tube plate holes penetrating through the tube plate need to be machined through a drill bit, after the existing drilling machining, the tube plate holes need to be chamfered through another drill bit, and for example, chinese patent literature discloses a chamfering tool for a round hole of a tube plate of a heat exchanger [ application number: 201420793258.7; authorization notice number: CN204295022U ], comprises a handle and a frustum part, wherein the large end face of the frustum part is coaxially connected with the handle, a plurality of knife edges and a plurality of knife grooves formed between the knife edges are arranged on the circumference of the outer wall of the frustum part anticlockwise, the top ends of the knife edges and the top ends of the knife grooves form the small end face of the frustum part, and the small end face is a plane.

The tube plate hole processing on the heat exchanger tube sheet that has now promptly needs twice process, uses two kinds of drill bits, and processing is troublesome, reduces machining efficiency. And because the processing is carried out through two kinds of drill bits and two procedures, the problem that the tube plate hole is not matched with the chamfer angle is caused by various problems such as positioning and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists among the prior art, provide a tube sheet processing cutter, the technical problem of solution is how to realize the drilling and the chamfer of tube sheet through a cutter, one process.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a tube sheet processing cutter, cutter is including being cylindrical cutter body, its characterized in that, the one end of cutter body has linked firmly the drill bit body that is used for drilling, the axial along the cutter body has the recessed setting and is spiral helicine chip groove on the circumference lateral wall of cutter body, the chip groove passes the drill bit body, link firmly the chamfer body that is used for the chamfer in the cell wall of chip groove, the chamfer position in cutter body axial centre department.

When the pipe plate hole chamfering machine is used, a cutter rotates, the drill body contacts the pipe plate and drills a hole in the pipe plate, after the drill body drills to a certain distance, the chamfering body contacts with the right-angle edge of the end portion of the pipe plate hole, and the chamfering body works to chamfer the pipe plate hole. The chip removal groove plays a role in chip removal, the chips processed by the drill bit body and the chamfer body are discharged through the chip removal groove, the chip removal groove penetrates through the drill bit body, and the chamfer body is located in the groove wall of the chip removal groove, so that the connection between the drill bit body and the chamfer body and the chip removal groove is tighter, and the chip removal groove plays a better chip removal role. The tube plate machining tool can realize the drilling and chamfering of the tube plate through one tool and one process, and is high in machining efficiency and high in machining precision.

In the above pipe plate processing tool, a recessed mounting groove is formed in the groove wall of the chip groove, the chamfer body is embedded and fixed in the mounting groove, and the part of the chamfer body is convexly arranged outside the circumferential outer side wall of the tool body. This kind of structure makes chamfer body simple to operate, guarantees simultaneously that chamfer physical stamina and tube sheet contact that is the right angle form of tubesheet hole tip, guarantees that the chamfer body can carry out the chamfer to the tubesheet hole.

In an above-mentioned tube sheet processing cutter, the quantity of chip groove is two, the quantity of chamfer body is two, two the chamfer body is arranged in the cell wall of the chip groove that corresponds respectively, two the chip groove symmetry sets up, two the chamfer body symmetry sets up. The symmetry sets up, can improve the stability of cutter processing.

In the pipe plate processing tool, the end part of one end of the tool body is provided with the recessed fixing groove, two ends of the fixing groove are respectively communicated with the corresponding chip removal grooves, and the drill bit body is embedded into the fixing groove and fixedly connected with the tool body. The drill bit body is convenient to fixedly connect, and the connection between the drill bit body and the chip groove is tighter.

In the above pipe plate processing tool, the groove walls on both sides of the fixing groove are bent, and the drill bit body is tightly attached to the groove walls on both sides of the fixing groove. The circumferential positioning of the drill bit body is improved, and the stability of the cutter is improved.

In the tube plate processing tool, the bit body part is convexly arranged outside the end part of the tool body, and the bit body part is convexly arranged outside the circumferential outer side wall of the tool body. The structure ensures that the drill bit body plays a role in drilling.

Compared with the prior art, the utility model provides a pair of tube sheet processing cutter sets up bit body and chamfer body on the cutter body, bores the tube sheet hole through the bit body, carries out the chamfer through the chamfer body to the tube sheet hole, can realize the drilling and the chamfer of tube sheet through a cutter, one process promptly, and machining efficiency is high, and the machining precision is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the pipe plate processing cutter.

Fig. 2 is a schematic structural diagram of the pipe plate processing tool bit body.

In the figure, 1, a cutter body; 2. a bit body; 3. a chip groove; 4. a chamfer body; 5. mounting grooves; 6. and fixing the grooves.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the tube sheet processing tool includes a tool body 1 having a cylindrical shape, a bit body 2, and a chamfer body 4. The bit body 2 is used for drilling, and the chamfer body 4 is used for chamfering.

The circumferential outer side wall of the cutter body 1 is provided with a concave chip groove 3 which is spirally arranged along the axial direction of the cutter body 1. As shown in fig. 2, the end of one end of the cutter body 1 is provided with a recessed fixing groove 6, two ends of the fixing groove 6 are respectively communicated with corresponding chip removal grooves 3, the groove walls on two sides of the fixing groove 6 are bent, the drill bit body 2 is embedded into the fixing groove 6 and is fixedly connected with the cutter body 1, and the drill bit body 2 and the groove walls on two sides of the fixing groove 6 are tightly attached. The bit body 2 is partially arranged outside the end part of the cutter body 1 in a protruding way, the bit body 2 is partially arranged outside the circumferential outer side wall of the cutter body 1 in a protruding way, and the chip discharge grooves 3 penetrate through the bit body 2.

The groove wall of the chip groove 3 is provided with a recessed mounting groove 5, the chamfer body 4 is embedded and fixed in the mounting groove 5, the chamfer body 4 is positioned in the axial middle of the cutter body 1, and part of the chamfer body 4 is convexly arranged outside the circumferential outer side wall of the cutter body 1.

The quantity of chip groove 3 is two, and the quantity of chamfer body 4 is two, and two chamfer bodies 4 are arranged in the cell wall of the chip groove 3 that corresponds respectively, and two chip grooves 3 symmetry sets up, and two chamfer bodies 4 symmetry sets up.

During machining, the cutter rotates, the drill bit body 2 firstly contacts a pipe plate and drills holes in the pipe plate, and chips drilled by the drill bit body 2 are discharged through the chip discharge grooves 3. After the drill body 2 drills to a certain distance, the chamfer body 4 is contacted with the right-angle edge of the end part of the tube sheet hole, the chamfer body 4 works to chamfer the tube sheet hole, and chips drilled by the chamfer body 4 are discharged through the chip discharge grooves 3.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms cutter body 1, bit body 2, junk slots 3, chamfer body 4, mounting slots 5, retaining slots 6, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Claims

1. The utility model provides a tube sheet processing cutter, cutter is including being cylindrical cutter body (1), its characterized in that, the one end of cutter body (1) has linked firmly drill bit body (2) that are used for drilling, axial along cutter body (1) has the concave setting and is spiral helicine chip groove (3) on the circumference lateral wall of cutter body (1), drill bit body (2) are passed in chip groove (3), link firmly chamfer body (4) that are used for the chamfer in the cell wall of chip groove (3), chamfer body (4) are located cutter body (1) axial centre department.

2. The tube sheet processing tool according to claim 1, wherein the flute wall of the flute (3) is provided with a recessed mounting groove (5), the chamfer body (4) is embedded and fixed in the mounting groove (5), and the chamfer body (4) is partially and convexly arranged outside the circumferential outer side wall of the tool body (1).

3. The tube sheet processing tool according to claim 1 or 2, wherein the number of the chip grooves (3) is two, the number of the chamfer bodies (4) is two, the two chamfer bodies (4) are respectively located in the groove walls of the corresponding chip grooves (3), the two chip grooves (3) are symmetrically arranged, and the two chamfer bodies (4) are symmetrically arranged.

4. The tube plate processing tool as claimed in claim 1 or 2, wherein the end of one end of the tool body (1) is provided with a recessed fixing groove (6), the two ends of the fixing groove (6) are respectively communicated with the corresponding chip discharge grooves (3), and the drill body (2) is embedded in the fixing groove (6) and fixedly connected with the tool body (1).

5. The tube plate processing tool as claimed in claim 4, wherein the groove walls on both sides of the fixing groove (6) are bent, and the bit body (2) is tightly attached to the groove walls on both sides of the fixing groove (6).

6. A tube sheet processing tool according to claim 1 or 2, characterized in that the bit body (2) is partially convexly arranged outside the end of the tool body (1), and the bit body (2) is partially convexly arranged outside the circumferential outer side wall of the tool body (1).