Seamless steel tube inner hole cutting equipment

Abstract

The utility model relates to the technical field of seamless steel pipe cutting, and discloses seamless steel pipe inner hole cutting equipment which comprises a rack, a cutting frame is arranged in the rack, an extension rod is fixed to the front side of the cutting frame, a cutter is arranged at the front end of the extension rod, and a supporting assembly is arranged in the rack. The supporting assembly comprises a supporting frame fixed to the inner bottom face of the rack, and a plurality of directional wheels are fixed to the top face of the supporting frame. The directional wheels are arranged to support the cutting frame, movement of the cutting frame is not affected, so that stability of the cutting frame is guaranteed, the lifting frame can ascend and descend according to the fixed position of a steel pipe body, the supporting rollers are attached to the bottom face of the steel pipe body, and the steel pipe body is supported; therefore, the situation that due to the fact that the extension rod and the steel pipe body are too long, the load borne by the cutting frame and the clamping jaw disc is too large due to the lever principle, the steel pipe body and the cutter may shake in the cutting process, and the cutting precision is affected is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seamless steel pipe cutting technology, especially to a kind of seamless steel pipe inner hole cutting processing equipment. BACKGROUND

[0002] Seamless steel pipe is made of whole piece of metal, and there is no joint on its surface. According to production method, seamless pipe is divided into hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe and top pipe. In the process of production of the existing seamless steel pipe, cracks and burns may occur on the pipe wall and the pipe, and the seamless steel pipe needs to be processed by inner hole cutting processing equipment.

[0003] The existing seamless steel pipe inner hole cutting processing equipment (announcement number: CN209986736U) has at least the following disadvantages: the device rotates the grinding head to polish the inner hole of the steel pipe through the rotating shaft. However, since the rotating shaft needs to be deeply inserted into the steel pipe, the rotating shaft needs to have a relatively long length, which causes the rotating shaft to have an excessively large load on the movable plate due to the lever principle, resulting in that the rotating shaft driven by the grinding head is not stable when polishing the inner hole of the steel pipe, which may cause slight shaking and thus affect the processing precision. Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a seamless steel pipe inner hole cutting processing equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A seamless steel pipe inner hole cutting processing equipment, comprising a rack, a cutting frame is arranged in the inside of the rack, an extension rod is fixed on the front side of the cutting frame, a cutting tool is arranged at the front end of the extension rod, a supporting assembly is arranged in the inside of the rack, the supporting assembly comprises a supporting frame fixed on the inside bottom surface of the rack, a plurality of directional wheels are fixed on the top surface of the supporting frame, and the rollers of the directional wheels abut against the bottom surface of the cutting frame.

[0007] As a further scheme of the utility model, a fixed plate is fixed in the inside of the supporting frame, a hydraulic rod is fixed on the top surface of the fixed plate, a lifting frame is fixed on one end of the hydraulic rod, and three supporting rollers are rotatably connected in the inside of the lifting frame.

[0008] As a further scheme of the utility model, a claw disc is rotatably connected to the inside front side of the rack, a steel pipe body is clamped and fixed in the inside of the claw disc, a lead screw is rotatably connected in the inside of the rack, and the cutting frame is threadedly connected with the outer wall of the lead screw.

[0009] As a further scheme of the utility model, the first motor and the second motor are respectively fixed on the front side of the rack close to the top surface and the bottom surface, the output shaft end of the first motor is fixed with the front side of the jaw disc, and the output shaft end of the second motor is fixed with the front end of the screw rod.

[0010] As a further scheme of the utility model, the inside of the rack is fixed with two limiting rods, the cutting frame is slidably arranged on the outer wall of the limiting rod, the fixed plate is respectively fixed with the support cylinder and the support rod on the two sides close to the lifting frame, and the support rod and the support cylinder are slidably arranged in the inside.

[0011] As a further scheme of the utility model, the front end of the extension rod is provided with a mounting groove, the cutting tool is inserted in the inside of the mounting groove, the extension rod is penetrated and inserted with a fixing bolt, and the fixing bolt is threadedly connected with the top surface of the cutting tool.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] By arranging the support frame in the inside of the rack and arranging the directional wheel on the top surface of the support frame to support the cutting frame, the stability of the cutting frame is ensured, the lifting frame can be lifted according to the fixed position of the steel pipe body, the support roller is attached to the bottom surface of the steel pipe body and supports the steel pipe body, the load on the cutting frame and the jaw disc caused by the length of the extension rod and the steel pipe body being too long is effectively prevented, the cutting tool and the steel pipe body may shake during cutting, and the cutting precision is affected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of a seamless steel pipe inner hole cutting machining equipment is provided for the utility model;

[0015] Figure 2 A three-dimensional split structure schematic view of a seamless steel pipe inner hole cutting machining equipment is provided for the utility model;

[0016] Figure 3 A cutting frame three-dimensional structure schematic view of a seamless steel pipe inner hole cutting machining equipment is provided for the utility model;

[0017] Figure 4 A Figure 3 A partial three-dimensional structure enlarged schematic view of A is provided for the utility model.

[0018] In the diagram: 1. Frame; 101. Cutting frame; 102. Extension rod; 103. Cutting blade; 2. Support frame; 201. Directional wheel; 202. Fixing plate; 203. Hydraulic rod; 204. Lifting frame; 205. Support roller; 3. Claw disc; 301. Steel pipe body; 302. Lead screw; 4. First motor; 401. Second motor; 5. Limiting rod; 501. Support cylinder; 502. Support rod; 6. Mounting groove; 601. Fixing bolt. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4 As shown, a seamless steel pipe inner hole cutting processing equipment includes a frame 1. A cutting frame 101 is arranged inside the frame 1. An extension rod 102 is fixed to the front side of the cutting frame 101. A cutting blade 103 is arranged at the front end of the extension rod 102. A support assembly is arranged inside the frame 1. The support assembly includes a support frame 2 fixed to the inner bottom surface of the frame 1. A plurality of directional wheels 201 are fixed to the top surface of the support frame 2. The rollers of the directional wheels 201 abut against the bottom surface of the cutting frame 101.

[0023] like Figures 2-4As shown, in this embodiment, the inside of the support frame 2 is fixed with a fixed plate 202, the top surface of the fixed plate 202 is fixed with a hydraulic rod 203, one end of the telescopic rod of the hydraulic rod 203 is fixed with a lifting frame 204, the inside of the lifting frame 204 is rotatably connected with three supporting rollers 205, by arranging the support frame 2 in the inside of the rack 1 and arranging the directional wheel 201 on the top surface of the support frame 2 to support the cutting frame 101, while not affecting the movement of the cutting frame 101, so as to ensure the stability of the cutting frame 101, by starting the hydraulic rod 203, the lifting frame 204 can be driven to lift, so that the supporting rollers 205 are attached to the bottom surface of the steel pipe body 301 and support the steel pipe body 301, thereby effectively preventing the cutting frame 101 and the jaw disc 3 from being subjected to excessive load due to the length of the extension rod 102 and the steel pipe body 301 being too long, resulting in the steel pipe body 301 and the cutting knife 103 may vibrate during cutting, affecting the cutting precision.

[0024] As shown in the figure, Figures 2-4 In this embodiment, the inside of the rack 1 is rotatably connected with a jaw disc 3, the inside of the jaw disc 3 is clamped and fixed with a steel pipe body 301, the inside of the rack 1 is rotatably connected with a lead screw 302, the cutting frame 101 is threadedly connected with the outer wall of the lead screw 302, the jaw disc 3 can clamp and fix the steel pipe body 301, and the steel pipe body 301 can be driven to rotate when the jaw disc 3 is driven to rotate, and the lead screw 302 is driven to rotate, and the cutting frame 101 drives the cutting knife 103 to approach the inner circle of the steel pipe body 301 under the action of the thread connection between the cutting frame 101 and the outer wall of the lead screw 302, so as to cut the inner circle of the steel pipe body 301.

[0025] As shown in the figure, Figures 2-4 In this embodiment, the front side of the rack 1 near the top surface and the bottom surface is respectively fixed with a first motor 4 and a second motor 401, the output shaft end of the first motor 4 is fixed with the front side of the jaw disc 3, and the output shaft end of the second motor 401 is fixed with the front end of the lead screw 302, the first motor 4 can drive the jaw disc 3 to rotate, so as to drive the steel pipe body 301 to rotate, the second motor 401 can drive the lead screw 302 to rotate, so as to drive the cutting frame 101 to drive the cutting knife 103 to approach the inner circle of the steel pipe body 301 for cutting.

[0026] As shown in the figure, Figures 2-4As shown, in the embodiment, the inside of the rack 1 is fixed with two limiting rods 5, the cutting frame 101 is slidingly arranged with the outer wall of the limiting rod 5, the fixed plate 202 and the lifting frame 204 are fixed with the support cylinder 501 and the support rod 502 on the two sides close to each other, the support rod 502 is slidingly arranged with the inside of the support cylinder 501, the movement of the cutting frame 101 can be limited and supported by the limiting rod 5, the lifting of the lifting frame 204 can be limited and supported by the sliding arrangement of the support rod 502 and the inside of the support cylinder 501.

[0027] As shown, Figures 2-4 In the embodiment, the front end of the extension rod 102 is provided with a mounting groove 6, the cutting tool 103 is inserted into the inside of the mounting groove 6, the extension rod 102 is inserted with a fixed bolt 601, the fixed bolt 601 is threadedly connected with the top surface of the cutting tool 103, the cutting tool 103 is detachably mounted with the extension rod 102 by the fixed bolt 601, so that the corresponding cutting tool 103 can be replaced according to the steel pipe body 301 of different diameters.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: in use, one end of the steel pipe body 301 is fixed by the claw disc 3, then the lifting frame 204 is lifted by starting the hydraulic rod 203, the support roller 205 is attached to the bottom surface of the steel pipe body 301 and supports the steel pipe body 301, then the claw disc 3 and the steel pipe body 301 are rotated by starting the first motor 4, at this time, the screw rod 302 is rotated by starting the second motor 401, under the threaded connection of the cutting frame 101 and the outer wall of the screw rod 302, the cutting frame 101 drives the cutting tool 103 to approach the inner ring of the steel pipe body 301, with the movement of the cutting tool 103 to the inner ring of the steel pipe body 301, the inner ring of the steel pipe body 301 is cut, in this process, the cutting frame 101 moves on the directional wheel 201 and makes the directional wheel 201 roll, so as to support the cutting frame 101, the movement of the cutting frame 101 can be limited and supported by the limiting rod 5, the lifting of the lifting frame 204 can be limited and supported by the sliding arrangement of the support rod 502 and the inside of the support cylinder 501, the cutting tool 103 is detachably mounted with the extension rod 102 by the fixed bolt 601, so that the corresponding cutting tool 103 can be replaced according to the steel pipe body 301 of different diameters.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A seamless steel pipe internal hole cutting and machining equipment, comprising a frame (1), characterized in that, The frame (1) is equipped with a cutting frame (101) inside. An extension rod (102) is fixed to the front side of the cutting frame (101). A cutting blade (103) is provided at the front end of the extension rod (102). The frame (1) is equipped with a support assembly inside. The support assembly includes a support frame (2) fixed to the bottom surface of the frame (1). Several directional wheels (201) are fixed to the top surface of the support frame (2). The rollers of the directional wheels (201) abut against the bottom surface of the cutting frame (101).

2. The seamless steel pipe internal hole cutting equipment according to claim 1, characterized in that, The support frame (2) has a fixed plate (202) inside, and a hydraulic rod (203) is fixed on the top surface of the fixed plate (202). One end of the extension rod of the hydraulic rod (203) is fixed to a lifting frame (204), and three support rollers (205) are rotatably connected inside the lifting frame (204).

3. The seamless steel pipe internal hole cutting equipment according to claim 2, characterized in that, The front of the machine frame (1) is rotatably connected to a chuck disk (3), and a steel pipe body (301) is clamped and fixed inside the chuck disk (3). A lead screw (302) is rotatably connected inside the machine frame (1), and the cutting frame (101) is threadedly connected to the outer wall of the lead screw (302).

4. The seamless steel pipe internal hole cutting equipment according to claim 3, characterized in that, The front side of the frame (1) is fixed with a first motor (4) and a second motor (401) near the top and bottom surfaces respectively. The output shaft end of the first motor (4) is fixed to the front side of the chuck disk (3), and the output shaft end of the second motor (401) is fixed to the front end of the lead screw (302).

5. The seamless steel pipe internal hole cutting equipment according to claim 4, characterized in that, The frame (1) has two limiting rods (5) fixed inside. The cutting frame (101) slides on the outer wall of the limiting rods (5). The fixed plate (202) and the lifting frame (204) are respectively fixed with a support cylinder (501) and a support rod (502). The support rod (502) slides inside the support cylinder (501).

6. The seamless steel pipe internal hole cutting equipment according to claim 5, characterized in that, The extension rod (102) has a mounting groove (6) at its front end. The cutting blade (103) is inserted into the mounting groove (6). The extension rod (102) is inserted through a fixing bolt (601), and the fixing bolt (601) is threadedly connected to the top surface of the cutting blade (103).

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