Supporting tool for cutting thin-walled pipe

Abstract

The utility model provides a supporting tool for cutting a thin-walled tube, which belongs to the technical field of machining equipment, comprises a chassis which is mounted on a numerical control lathe, and is characterized in that a plurality of circumferentially arranged mounting grooves are formed in the right end surface of the chassis, and expansion supporting structures are arranged in the mounting grooves; the expansion supporting structure is fixedly connected into the mounting groove through a fastening screw, and the right end of the chassis is fixedly connected with a feeding shaft; the inner supporting tool is simple in structure, and the problems that an existing supporting device is complex in structure, inconvenient to operate and not suitable for batch operation, and meanwhile large extrusion force is caused to a thin-wall pipe fitting, so that the thin-wall pipe fitting is prone to deformation during cutting operation are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining equipment, specifically relates to a support frock for thin -walled pipe cutting. BACKGROUND

[0002] In industrial production, the numerical control machine tool is often used to cut off the thin -walled pipe, and the thin -walled pipe needs to be clamped and fixed during cutting.

[0003] The existing general support device is prone to deformation during the cutting operation of the thin -walled pipe, and the precision requirement of the thin -walled pipe is high, and for the cutting process of batch thin -walled pipe, the existing structure is too complex, the cutting precision is not high, and the work load of the operator is relatively large each time, and the installation and unloading process is cumbersome, and the efficiency is low, and it is not suitable for the cutting of batch thin -walled pipe. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a support frock for thin -walled pipe cutting to solve the problems of the existing support device structure, inconvenient operation, not suitable for batch operation, and causing large extrusion force to the thin -walled pipe, so that the thin -walled pipe is prone to deformation during cutting operation.

[0005] In order to achieve the above purpose, the utility model provides a support frock for thin -walled pipe cutting, which comprises a bottom disc, is installed on a numerical control lathe, a plurality of circumferentially arranged installation grooves are formed in the right end face of the bottom disc, an expansion support structure is arranged in the installation groove, and a feed shaft is fixedly connected to the right end of the bottom disc.

[0006] Further, one end of the installation groove is towards the center of the bottom disc, and the other end extends outward to the boundary of the bottom disc.

[0007] Further, the expansion support structure comprises a plurality of expansion rods and support rods, and the expansion rods are connected with the support rods vertically.

[0008] It also comprises a sliding rail matched with the installation groove, the sliding rail is fixedly connected in the installation groove, the expansion rod slides in the sliding rail and is matched with the sliding rail, the fastening screw passes through the expansion rod and abuts against the sliding rail, and the fastening screw is located at one end of the expansion rod close to the center of the bottom disc.

[0009] Further, the outer end face of the support rod is arc-shaped, the inner end face is matched with the outer end face of the bottom disc, and the support rod is connected to the expansion rod through a fixed bolt.

[0010] Further, the bottom disc is a regular polygon.

[0011] Further, the mounting groove of the chassis is further provided with a fixing groove, which is located at the right end of the mounting groove and has a width greater than that of the mounting groove.

[0012] Further, one end of the feeding shaft is fixedly connected to the center of the chassis.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1. Simple structure, convenient disassembly process.

[0015] 2. It can be used for thin-walled pipe fittings of different diameters, and has strong applicability.

[0016] 3. The inner support structure is used to support the thin-walled pipe fitting, which provides greater support while minimizing the radial compression force on the thin-walled pipe fitting, making it more reliable and stable when cutting.

[0017] 4. More support structures reduce the radial force per unit area on the thin-walled pipe fitting, effectively preventing end face deformation of the thin-walled pipe fitting due to uneven holding force during cutting.

[0018] The present application will be described in detail below in conjunction with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic diagram of the present application.

[0020] Fig. 2 is a structural schematic diagram of the chassis of the present application.

[0021] Fig. 3 is a structural schematic diagram of the protective plate of the present application.

[0022] Reference signs: 1, chassis; 11, mounting groove; 12, fixing groove; 2, expansion support structure; 21, expansion rod; 22, support rod; 23, slide rail; 24, fastening screw; 3, feeding shaft; 4, protective plate; 41, limiting groove. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present application to achieve the predetermined purpose, the specific implementation, structural features and effects of the present application will be described in detail below in conjunction with the drawings and examples.

[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "alignment", "overlap", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] Embodiment 1

[0028] The present embodiment provides a supporting tool for cutting thin-walled pipes as shown in Figs. 1-3 The supporting tool includes a base plate 1 mounted on a numerical control lathe, a plurality of circumferentially arranged mounting grooves 11 are formed on the right end face of the base plate 1, the mounting grooves 11 are used to mount the expansion support structure 2, the expansion support structure 2 is an inner support structure used to outwardly expand and support the thin-walled pipe, the right end of the base plate 1 is fixedly connected with a feed shaft 4, and the supporting tool as a whole is placed in the thin-walled pipe through tail top of the numerical control lathe.

[0029] Further, as shown in Fig. 1 And Fig. 2 One end of the mounting groove 11 is directed to the center of the base plate 1, and the other end extends outwardly to the boundary of the base plate 1, and the mounting groove 11 is specifically arranged outwardly from the center of the base plate 1, and the expansion support structure 2 can slide and expand outwardly in the mounting groove 11.

[0030] Further, the expansion support structure 2 mainly includes an expansion rod 21 and a support rod 22, the expansion rod 21 is perpendicularly connected with the support rod 22, and the expansion rod 21 is used to push the support rod 22;

[0031] The expansion rod 21 is also provided with a slide rail 23 which matches the mounting groove 11. The slide rail 23 is fixedly connected to the mounting groove 11. The expansion rod 21 slides in the slide rail 23 and matches the slide rail 23. That is, the length of the expansion rod 21 is the same as that of the slide rail 23, so that the expansion rod 23 just overlaps with the position of the slide rail 23 when it is not moving. The fastening screw 24 passes through the expansion rod 21 and abuts against the slide rail 23. When the expansion rod 21 moves to the desired position, the fastening screw 24 is tightened to lock the expansion support structure 2. At the same time, the fastening screw 24 is located at one end of the expansion rod 21 close to the center of the chassis 1, so that the expansion rod 21 has a relatively large stroke, and the tooling has a higher adaptability under the condition of reliable locking.

[0032] Furthermore, the outer end face of the support rod 22 is arc-shaped, and the arc-shaped outer end face allows the support rod to fit more closely with the thin-walled pipe fitting, providing a more stable supporting force while minimizing deformation of the thin-walled pipe fitting. The inner end face matches the outer end face of the chassis 1, so that when the entire expansion support structure 2 is retracted to the bottom, the support rod 22 can fit completely with the chassis 1. The support rod 22 is connected to the expansion rod 21 by a fixing bolt. Specifically, a through hole is opened on the support rod 22, and the fastening bolt passes through the through hole to connect the support rod 22 to the expansion rod 21.

[0033] Furthermore, the chassis 1 is a regular polygon, specifically a regular dodecagon, and twelve mounting slots 11 are provided on the corresponding chassis 1, that is, twelve expansion rods 21 and support rods 22 are installed. More support rods 22 make the outer end face gap of the support rod 22 smaller when used for thin-walled pipe fittings with larger diameters, and the support provided is more stable, so that the extrusion force per unit area of ​​the thin-walled pipe fitting is smaller, and it is less likely to deform during the cutting operation.

[0034] Further, such as Fig. 2 and Fig. 3 As shown, a fixing groove 12 is further provided at the mounting groove 11 of the chassis 1. The fixing groove 12 is located at the right end of the mounting groove 11. The width of the fixing groove 12 is greater than the width of the mounting groove 11. The mounting groove 11 is used to install the expansion support structure 2, and the fixing groove 12 is used to install the protective plate 4 for protecting the expansion support structure 2. A limiting groove 41 is provided on the protective plate 4, and the fastening screw 24 slides in the limiting groove 41. In fact, the maximum stroke that the expansion rod 22 can expand is the stroke of the fastening screw 24. The limiting groove 41 is provided for further limiting protection to prevent the expansion rod 22 from falling off due to excessive movement of the expansion support structure 2.

[0035] Furthermore, one end of the feed shaft 4 is fixedly connected to the center of the chassis 1 , and the other end is mounted on a CNC lathe.

[0036] In use: first, the thin-walled pipe is measured, according to the measured pipe diameter, the operator first loosens the fastening screw 24, the travel of the expansion support structure 2 is roughly adjusted to the approximate position, then the support tool is placed in the thin-walled pipe through the numerical control lathe tail top, at this time, the expansion support structure 2 on the tool is adjusted until the support rod 22 is completely matched with the inner control of the thin-walled pipe, the fastening screw 24 is tightened, and the support tool can complete the support action;

[0037] In batch operation, when the last thin-walled pipe is cut, the operator only needs to loosen several expansion support structures 2, and in subsequent use, the support tool can be easily placed in the thin-walled pipe to be cut, and then the loosened expansion support structure 2 is adjusted, so that the labor amount of batch operation is greatly reduced, and the disassembly and replacement operation is simple and fast.

[0038] The above is a further detailed description of the utility model in combination with a specific preferred embodiment, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as belonging to the protection scope of the utility model.

Claims

1. A support tool for cutting thin-walled tubes, comprising a chassis (1), mounted on a CNC lathe, characterized in that: The right end surface of the chassis (1) is provided with a plurality of circumferentially arranged mounting grooves (11), an expansion support structure (2) is provided in the mounting grooves (11), and the right end of the chassis (1) is fixedly connected to a feed shaft (4).

2. A support tool for thin-walled tube cutting according to claim 1, characterized in that: One end of the mounting groove (11) faces the center of the chassis (1), and the other end extends outward to the boundary of the chassis (1).

3. A support tool for thin-walled tube cutting according to claim 2, characterized in that: The expansion support structure (2) comprises an expansion rod (21) and a support rod (22), wherein the expansion rod (21) is vertically connected to the support rod (22); It also includes a slide rail (23) that matches the installation groove (11), the slide rail (23) is fixedly connected to the installation groove (11), and the expansion rod (21) slides in the slide rail (23) and matches the slide rail (23).

4. A support tool for thin-walled tube cutting according to claim 3, characterized in that: The outer end surface of the support rod (22) is arc-shaped, and the inner end surface matches the outer end surface of the chassis (1). The support rod (22) is connected to the expansion rod (21) via a fixing bolt.

5. The supporting tool for thin-walled tube cutting according to claim 4, characterized in that: The chassis (1) is a regular polygon.

6. The supporting tool for thin-walled tube cutting according to claim 5, characterized in that: A fixing groove (12) is also provided at the mounting groove (11) of the chassis (1), and the fixing groove (12) is located at the right end of the mounting groove (11), and the width of the fixing groove (12) is greater than the width of the mounting groove (11).

7. The supporting tool for thin-walled tube cutting according to claim 1, characterized in that: One end of the feed shaft (4) is fixedly connected to the center of the chassis (1).

Images