Righting anti-vibration device suitable for short section production

Abstract

The utility model relates to an oil casing pipe nipple production device, in particular to a righting anti-vibration device suitable for pipe nipple production. According to the technical scheme, a steel pipe is installed in a machine tool clamping cylinder, a guide head is installed at the left end of an inner cavity of the steel pipe, and a steel pipe rubber plug, a baffle, a machine tool clamping cylinder rubber plug, a fixed flange plate and a power mechanism are sequentially installed on the left side of the guide head. The fixed flange plate, the machine tool clamping cylinder rubber plug and the baffle are located on the inner wall of the machine tool clamping cylinder, and an output shaft of the power mechanism is connected to the steel pipe rubber plug and the guide head in the steel pipe through a connecting rod and fixed through a lock nut. The device has the advantages that the steel pipe rubber plug and the machine tool clamping cylinder rubber plug are pressed and deformed, the steel pipe and the machine tool clamping cylinder are tightly fixed, the center of the steel pipe coincides with the center of the machine tool front chuck and the center of the machine tool rear chuck, clamping and positioning of the chucks are more accurate, and the percent of pass of pup joint production is increased.

Description

Technical Field

[0001] The utility model relates to a production device for oil casing pup joints, in particular to a centralizing and shock-proof device suitable for the production of pup joints. Background Art

[0002] In the petroleum industry, short sections are often used in the connection of oil casing. Both ends of the short sections generally need to be processed with threads. Therefore, the processing is generally completed by a pipe threading machine. However, the distance between the front and rear chucks of a general pipe threading machine is about 2-3 meters. In this way, when producing and processing oil casing short sections, due to the different lengths of the oil casing short sections, if the length is less than the clamping length of the front and rear chucks of the pipe threading machine, the pipe can only be clamped by the front chuck, especially for pipes with a length of 1.5 meters to 2 meters. The front end is clamped short and the rear margin is large, which is easy to clamp incorrectly. The pipe is easy to move slightly during turning, and it is easy to produce vibration marks when processing threads, causing the prepared short sections to be unqualified. Therefore, the scrap rate of the short sections is increased and the production qualification rate is reduced. Utility Model Content

[0003] The purpose of the utility model is to provide a straightening and anti-vibration device suitable for short section production in view of the above-mentioned defects in the prior art. The utility model adds a center clamp at the tail of the pipe in the inner cavity of the machine tool to make the chuck clamping and positioning more accurate, thereby improving the qualified rate of short section production.

[0004] The utility model discloses a straightening and anti-vibration device suitable for short section production, and the technical scheme is as follows: it comprises a machine tool chuck (1), a machine tool front chuck (2), a guide head (5), a steel pipe rubber plug (6), a baffle (7), a machine tool chuck rubber plug (8), a fixed flange plate (9), a connecting rod (10), a power mechanism (12), and a machine tool rear chuck (14), wherein the machine tool chuck (1) is installed between the machine tool front chuck (2) and the machine tool rear chuck (14), a steel pipe (4) is installed in the machine tool chuck (1), and a guide head (5) is installed at the left end of the inner cavity of the steel pipe (4). A baffle plate (7), a machine tool clamp rubber plug (8), a fixed flange plate (9) and a power mechanism (12) are installed in sequence on the left side of the steel tube rubber plug (6); the power mechanism (12) is fixedly connected to the fixed flange plate (9), and the fixed flange plate (9), the machine tool clamp rubber plug (8) and the baffle plate (7) are located on the inner wall of the machine tool clamp (1); the output shaft of the power mechanism (12) is connected to the steel tube rubber plug (6) and the guide head (5) in the steel tube (4) through a connecting rod (10) and is fixed by a lock nut (11).

[0005] Preferably, the front clamping jaws (3) of the machine tool are mounted on the outer side of the front chuck (2) of the machine tool, and the rear clamping jaws (13) of the machine tool are mounted on the outer side of the rear chuck (14) of the machine tool.

[0006] Preferably, the fixed flange plate (9), the machine tool chuck rubber plug (8) and the baffle plate (7) are circular structures, and their outer diameters are all smaller than the inner diameter of the machine tool chuck (1).

[0007] Preferably, the outer diameters of the guide head (5) and the steel pipe rubber plug (6) are smaller than the inner diameter of the steel pipe (4).

[0008] Preferably, the guide head (5) is a cone structure, and a groove is provided at the right end, a through hole for installing the connecting rod (10) is provided in the groove, and the lock nut (11) is installed in the groove.

[0009] Preferably, the power mechanism (12) is an electric motor, and is mounted at the left center of the fixed flange plate (9).

[0010] The beneficial effects of the utility model are as follows: the power mechanism, fixed flange plate, machine tool clamp rubber plug and baffle of the utility model are connected to the steel pipe rubber plug and the guide head at the tail of the steel pipe through a connecting rod, and the connecting rod is driven by the power mechanism to compress the guide head, the baffle and the fixed flange plate, so that the steel pipe rubber plug and the machine tool clamp rubber plug are compressed and deformed, and the steel pipe and the machine tool clamp are tightly fixed, so that the center of the steel pipe and the center of the front chuck of the machine tool and the rear chuck of the machine tool coincide with each other, and then the other end of the steel pipe is clamped by the front claw of the machine tool, so as to realize straightening and fixing, facilitate the processing of the steel pipe, make the chuck clamping and positioning more accurate, and improve the qualified rate of short section production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure consisting of a power mechanism, a fixed flange plate, a machine tool clamp rubber plug and a baffle;

[0013] Figure 3 It is a schematic diagram of the structure of the steel tube rubber plug and the guide head;

[0014] In the above figure: machine tool chuck 1, machine tool front chuck 2, machine tool front jaw 3, steel pipe 4, guide head 5, steel pipe rubber plug 6, baffle 7, machine tool chuck rubber plug 8, fixed flange plate 9, connecting rod 10, lock nut 11, power mechanism 12, machine tool rear jaw 13, machine tool rear chuck 14. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0016] Example 1, reference Figure 1The utility model mentions a straightening and anti-vibration device suitable for short section production, comprising a machine tool chuck 1, a machine tool front chuck 2, a guide head 5, a steel pipe rubber plug 6, a baffle 7, a machine tool chuck rubber plug 8, a fixed flange plate 9, a connecting rod 10, a power mechanism 12, and a machine tool rear chuck 14. The machine tool chuck 1 is installed between the machine tool front chuck 2 and the machine tool rear chuck 14, and a steel pipe 4 is installed in the machine tool chuck 1. The guide head 5 and the steel pipe rubber plug 6 are installed at the left end of the inner cavity of the steel pipe 4. The baffle 7, the machine tool chuck rubber plug 8, the fixed flange plate 9 and the power mechanism 12 are installed on the left side of the steel pipe rubber plug 6 in sequence. The power mechanism 12 is fixedly connected to the fixed flange plate 9, and the fixed flange plate 9, the machine tool chuck rubber plug 8 and the baffle 7 are located on the inner wall of the machine tool chuck 1, and the output shaft of the power mechanism 12 is connected to the steel pipe rubber plug 6 and the guide head 5 in the steel pipe 4 through the connecting rod 10, and is fixed by a lock nut 11.

[0017] The front clamping jaws 3 of the machine tool are installed on the outer side of the front chuck 2 of the machine tool, and the rear clamping jaws 13 of the machine tool are installed on the outer side of the rear chuck 14 of the machine tool.

[0018] The above-mentioned fixed flange plate 9, machine tool clamp rubber plug 8 and baffle 7 are circular structures, and their outer diameters are smaller than the inner diameter of the machine tool clamp 1. By squeezing the steel tube rubber plug 6, the whole can be fixed on the inner wall of the machine tool clamp 1, playing a supporting and clamping role.

[0019] The outer diameters of the guide head 5 and the steel pipe rubber plug 6 are smaller than the inner diameter of the steel pipe 4. The steel pipe rubber plug 6 is squeezed against the inner wall of the steel pipe 4 to play a supporting and clamping role.

[0020] The guide head 5 is a cone structure, and a groove is provided at the right end. A through hole for installing the connecting rod 10 is provided in the groove, and the lock nut 11 is installed in the groove.

[0021] The power mechanism 12 mentioned above adopts an electric motor and is installed at the left center position of the fixed flange plate 9.

[0022] When the utility model is used, the power mechanism 12, the fixed flange plate 9, the machine tool clamp rubber plug 8 and the baffle plate 7 of the utility model are connected to the steel pipe rubber plug 6 and the guide head 5 at the tail of the steel pipe 4 through the connecting rod 10. The connecting rod 10 is driven by the power mechanism 12 to compress the guide head 5, the baffle plate 7 and the fixed flange plate 9, so that the steel pipe rubber plug 6 and the machine tool clamp rubber plug 8 are compressed and deformed, and the steel pipe 4 and the machine tool clamp 1 are tightly fixed, so that the center of the steel pipe 4 and the center of the front chuck 3 and the rear chuck 14 of the machine tool are coincident, and then the other end of the steel pipe 4 is clamped by the front jaw 3 of the machine tool, so that straightening and fixation are achieved, which is convenient for processing the steel pipe 4.

[0023] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent transformation based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A centralizing and shockproof device suitable for short section production, characterized by: The invention comprises a machine tool chuck (1), a front chuck (2), a guide head (5), a steel tube rubber plug (6), a baffle (7), a machine tool chuck rubber plug (8), a fixed flange plate (9), a connecting rod (10), a power mechanism (12), and a rear chuck (14) of the machine tool. The machine tool chuck (1) is installed between the front chuck (2) and the rear chuck (14) of the machine tool. A steel tube (4) is installed in the machine tool chuck (1). The guide head (5) and the steel tube rubber plug (6) are installed at the left end of the inner cavity of the steel tube (4). A baffle plate (7), a machine tool clamp rubber plug (8), a fixed flange plate (9) and a power mechanism (12) are sequentially installed on the left side of the rubber plug (6); the power mechanism (12) is fixedly connected to the fixed flange plate (9), and the fixed flange plate (9), the machine tool clamp rubber plug (8) and the baffle plate (7) are located on the inner wall of the machine tool clamp (1); an output shaft of the power mechanism (12) is connected to the steel pipe rubber plug (6) and the guide head (5) in the steel pipe (4) through a connecting rod (10) and is fixed by a lock nut (11).

2. According to claim 1, a centralizing and shock-proof device suitable for short section production is characterized by: The front clamping jaws (3) of the machine tool are mounted on the outer side of the front chuck (2) of the machine tool, and the rear clamping jaws (13) of the machine tool are mounted on the outer side of the rear chuck (14) of the machine tool.

3. The centralizing and shockproof device suitable for short section production according to claim 2 is characterized by: The fixed flange plate (9), the machine tool clamping barrel rubber plug (8) and the baffle plate (7) are circular structures, and their outer diameters are all smaller than the inner diameter of the machine tool clamping barrel (1).

4. The centralizing and shock-proofing device suitable for short section production according to claim 2 is characterized by: The outer diameters of the guide head (5) and the steel pipe rubber plug (6) are smaller than the inner diameter of the steel pipe (4).

5. The centralizing and shockproof device suitable for short section production according to claim 4 is characterized by: The guide head (5) is a cone structure, and a groove is provided at the right end. A through hole for installing the connecting rod (10) is provided in the groove, and the lock nut (11) is installed in the groove.

6. The centralizing and shock-proofing device suitable for short-section production according to claim 4 is characterized in that: The power mechanism (12) adopts an electric motor and is installed at the left center position of the fixed flange plate (9).

Images