Petroleum pipe coupling processing machine tool

Abstract

The utility model discloses a petroleum pipe coupling machine tool which comprises a conveying part, a grabbing part, a machining part and a conversion device, the conveying part comprises a first conveying belt and a second conveying belt, the grabbing part comprises a machine tool body, and a first clamping hand and a second clamping hand are arranged at the two ends of the machine tool body respectively. First driving devices are arranged above the first clamping hand and the second clamping hand respectively, the machining part comprises a first machining shaft and a second machining shaft, second driving devices are arranged below the first machining shaft and the second machining shaft respectively, and the conversion device comprises a buckle and a rotating shaft. The first driving device drives the first clamping hand and the second clamping hand to conduct telescopic grabbing in the Z1-axis direction and the Z2-axis direction correspondingly, the second driving device drives the first machining shaft and the second machining shaft to rotate around the C1-axis direction and the C2-axis direction correspondingly, internal threads of the butt-joint hoop blank are machined through rotary milling, and the chip removal problem is solved; the automatic overturning device for the coupling blank achieves automatic overturning of the coupling blank, improves machining efficiency and belongs to the field of machining.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, and more specifically relates to a machine tool for processing a petroleum pipe coupling. Background Art

[0002] The oil pipe coupling is a large-diameter pipe that can fix the oil and gas well wall or wellbore. With the rapid development of the machine tool industry, high-end intelligence and automation have become a development trend.

[0003] However, in the prior art, when ordinary machine tools are used to process oil pipe couplings, if the threads are turned directly, iron chips will form a ring and entangle on the tool, which often leads to difficulties in breaking chips, iron chips entanglement with the tool, and difficulty in discharging iron chips. In addition, the entanglement of iron chips will cause the automatic feeding to collide with the machine, and the automation has a high failure rate. In addition, manual re-clamping is required according to the processing steps of the oil pipe coupling, which results in high labor intensity for workers and low processing efficiency. Summary of the invention

[0004] The main purpose of the utility model is to provide a petroleum pipe coupling processing machine tool to solve the problem that iron chips are difficult to discharge when processing the threads of the petroleum pipe coupling and to further improve the processing efficiency.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A machine tool for processing oil pipe couplings, comprising a conveying part, a gripping part, a processing part and a conversion device; the conveying part comprises a first conveyor belt and a second conveyor belt respectively arranged on both sides of the gripping part, the first conveyor belt and the second conveyor belt are both arranged along the Y-axis direction, the movement directions of the first conveyor belt and the second conveyor belt are opposite, the first conveyor belt is used to convey unprocessed couplings to the gripping part, and the second conveyor belt is used to send out processed couplings; the gripping part comprises a machine tool body, the machine tool body is vertically arranged above the conveying part, the machine tool body is arranged along the X1-axis direction, a first gripper and a second gripper are respectively arranged at both ends of the machine tool body, the first gripper and the second gripper can reciprocate along the X2-axis direction, and the first gripper and the second gripper are respectively arranged above There is a first driving device, and the first gripper and the second gripper can respectively perform telescopic grasping actions along the Z1 axis and the Z2 axis directions under the drive of the first driving device; the processing part can respectively process the two ends of the butt-jointed blank, and the processing part is arranged between the first conveyor belt and the second conveyor belt, and the processing part includes a first processing axis and a second processing axis, and second driving devices are respectively arranged below the first processing axis and the second processing axis, and the second driving device can drive the first processing axis and the second processing axis to rotate around the C1 axis and the C2 axis respectively; the conversion device is arranged between the first processing axis and the second processing axis, and the conversion device includes a buckle and a rotating axis, and the rotating axis is arranged perpendicular to the X2 axis, and the rotating axis can drive the buckle to rotate around the A axis.

[0007] In a specific embodiment of the present invention, a tool turret is provided between the conversion device and the first processing axis and the second processing axis, respectively, and a tool magazine is provided on the outer side of the first processing axis and the second processing axis, respectively.

[0008] In a specific embodiment of the present invention, a conversion tool holder is provided between the tool magazine and the first processing axis and the second processing axis respectively.

[0009] In a specific embodiment of the present invention, the conversion device further comprises a third driving device, and an output end of the third driving device is connected to the rotating shaft.

[0010] In a specific embodiment of the utility model, a first slide rail and a second slide rail are parallelly provided on the machine tool body, and sliders are respectively provided between the first clamping hand and the second clamping hand and the machine tool body, and the first clamping hand and the second clamping hand are respectively slidably connected to the machine tool body through the sliders.

[0011] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0012] The utility model drives the first clamp and the second clamp to perform telescopic grasping actions along the Z1 axis and the Z2 axis respectively through the first driving device, and drives the first processing axis and the second processing axis to rotate around the C1 axis and the C2 axis respectively through the second driving device, thereby replacing the previous turning processing method, adopting rotary milling to process the internal thread of the coupling blank, thereby solving the chip removal problem; the buckle is driven to rotate around the A axis by the rotating shaft, thereby realizing automatic flipping of the coupling blank, greatly improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 It is an overall structural diagram of an embodiment of the utility model;

[0015] Figure 2 It is a front view of an embodiment of the utility model;

[0016] Figure 3 It is a top view of an embodiment of the utility model;

[0017] Figure 4 This is a cross-sectional view taken along the AA direction of an embodiment of the utility model;

[0018] Figure 5 It is a sectional view taken along direction BB of an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0025] Reference Figures 1 to 5 As shown, a machine tool for processing oil pipe couplings includes a transmission part 1, a gripping part 2, a processing part 3 and a conversion device 4. The conversion device 4 is arranged between a first processing axis 31 and a second processing axis 32. The conversion device 4 includes a buckle 41, a rotating shaft 42 and a third driving device 9. The third driving device 9 is a servo motor. The output end of the third driving device 9 is connected to the rotating shaft 42. The rotating shaft 42 is arranged perpendicular to the X2 axis. The rotating shaft 42 can drive the buckle 41 to rotate around the A axis, thereby driving the blank to complete the upside down flipping.

[0026] In one embodiment of the utility model, the conveying part 1 includes a first conveyor belt 11 and a second conveyor belt 12 respectively arranged on both sides of the grasping part 2, the first conveyor belt 11 and the second conveyor belt 12 are both arranged along the Y-axis direction, and the movement directions of the first conveyor belt 11 and the second conveyor belt 12 are opposite. The first conveyor belt 11 is used to convey unprocessed couplings to the grasping part 2, and the second conveyor belt 12 is used to send out processed couplings.

[0027] The specific operation steps are as follows: the first gripper 22 is used to clamp the oil pipe coupling blank from the first conveyor belt 11, and the first gripper 22 moves the oil pipe coupling to the corresponding position of the first processing axis 31; the first processing axis 31 and the first gripper 22 are linked to process one end of the oil pipe coupling; the first gripper 22 moves the coupling after one end is processed to the conversion device 4; the coupling is reversed by the conversion device 4, and the other end of the coupling is further processed; the second gripper 23 moves the oil pipe coupling to the corresponding position of the second processing axis 32, and the other end of the coupling is processed by the second processing axis 32; the second gripper 23 is used to place the processed coupling on the second conveyor belt 12 to complete the discharge.

[0028] In one embodiment of the utility model, the grasping part 2 includes a machine tool body 21, which is vertically arranged above the conveying part 1, and the machine tool body 21 is arranged along the X1 axis direction. A first gripper 22 and a second gripper 23 are respectively provided at both ends of the machine tool body 21, and a first slide rail 211 and a second slide rail 212 are parallelly arranged on the machine tool body 21. Slide blocks 8 are respectively provided between the first gripper 22 and the second gripper 23 and the machine tool body 21. The first gripper 22 and the second gripper 23 are respectively slidably connected to the machine tool body 21 through the slide blocks 8, so that the first gripper 22 and the second gripper 23 can reciprocate along the X2 axis direction, and a first driving device 5 is respectively provided above the first gripper 22 and the second gripper 23, and the first driving device 5 is a servo motor. The first gripper 22 and the second gripper 23 can be driven by the first driving device 5 to perform telescopic grasping actions along the Z1 axis and the Z2 axis directions respectively, thereby completing the grasping operation of the butt clamp.

[0029] In one embodiment of the utility model, first limiting protrusions are respectively provided at the upper and lower ends of the slider 8, and second limiting protrusions are respectively provided at the two ends of the first slide rail 211 and the second slide rail 212. The movement range of the first clamp 22 and the second clamp 23 is limited by the first limiting protrusion and the second limiting protrusion to prevent accidents in special circumstances.

[0030] In one embodiment of the utility model, a processing section 3 is provided between the first conveyor belt 11 and the second conveyor belt 12. The processing section 3 can process the two ends of the butt hoop blank respectively. The processing section 3 is arranged between the first conveyor belt 11 and the second conveyor belt 12. The processing section 3 includes a first processing axis 31 and a second processing axis 32 which are arranged perpendicular to the X2 axis. Second driving devices are respectively provided below the first processing axis 31 and the second processing axis 32. The second driving devices can drive the first processing axis 31 and the second processing axis 32 to rotate around the C1 axis and the C2 axis respectively, and reciprocate along the Z1 axis and the Z2 axis respectively, thereby replacing the previous turning processing method and adopting rotary milling to process the internal thread of the butt hoop blank, thereby solving the chip removal problem.

[0031] In one embodiment of the utility model, a turret 6 is provided between the conversion device 4 and the first processing axis 31 and the second processing axis 32, respectively; a tool magazine 7 is provided on the outer side of the first processing axis 31 and the second processing axis 32, respectively; a conversion tool holder 71 is provided between the tool magazine 7 and the first processing axis 31 and the second processing axis 32, respectively, for quickly replacing suitable tools, wherein the tool magazine 7 is a disc-type tool magazine, which can realize automatic tool changing operations according to a set program.

[0032] The specific processing process of the utility model is to move the first clamp 22 along the X2 axis direction to the top of the first conveyor belt 11, grab the coupling from the first conveyor belt 11 to complete one side loading, and move the coupling to the position above the first processing axis 31, so that the first processing axis 31 can turn the end face of one end of the coupling; further move the first processing axis 31 along the Z1 axis direction to process the outer diameter of one end of the coupling; further, the tool magazine 7 is linked with the first processing axis 31 to perform tool change operation, and the outer cylindrical tool is replaced to perform milling on the inner hole of one end of the coupling; further, the tool magazine 7 is linked with the first processing axis 31 to perform tool change operation, and the tool is replaced to perform milling on the internal thread of one end of the coupling.

[0033] After the above processing steps are completed, the coupling is moved to the conversion device 4, fixed by the buckle 41, and the third driving device 9 is used to drive the rotating shaft 42 to rotate the buckle 41, thereby driving the coupling to flip, and the second clamping hand 23 is used to take the coupling out of the buckle 41. At the same time, the first clamping hand 22 returns to the first conveyor belt 11 for clamping and loading, and the coupling is moved to the corresponding position of the second processing axis 32 by the second clamping hand 23, so that the second processing axis 32 performs turning processing on the end face of the other end of the coupling; further, the second processing axis 32 is moved along the Z-axis direction to process the outer diameter of the other end of the coupling; then, the tool magazine 7 is linked with the second processing axis 32 to perform a tool change operation, and the outer cylindrical tool is replaced to process the inner hole of the other end of the coupling; further, the tool magazine 7 is linked with the second processing axis 32 to perform a tool change operation, and the tool is replaced to perform rotary milling processing on the internal thread of the other end of the coupling.

[0034] The processed coupling is placed on the second conveyor belt 12 to complete unloading. At the same time, the first gripper 22 has placed the coupling with one end processed again on the conversion device 4. The first gripper 22 will return to the first conveyor belt 11 to grab the material, and the second gripper 23 will move to the conversion device 4 to grab the material. The above actions are then repeated to achieve the automated effect of raw materials in and finished products out.

[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A machine tool for processing oil pipe couplings, characterized in that: It comprises a conveying part (1), a grasping part (2), a processing part (3) and a conversion device (4); The conveying portion (1) comprises a first conveyor belt (11) and a second conveyor belt (12) respectively arranged on both sides of the grasping portion (2); the first conveyor belt (11) and the second conveyor belt (12) are both arranged along the Y-axis direction; the movement directions of the first conveyor belt (11) and the second conveyor belt (12) are opposite; the first conveyor belt (11) is used to convey unprocessed couplings to the grasping portion (2); and the second conveyor belt (12) is used to deliver processed couplings; The gripping portion (2) comprises a machine tool body (21), the machine tool body (21) being vertically arranged above the conveying portion (1), the machine tool body (21) being arranged along the X1 axis direction, a first gripper (22) and a second gripper (23) being respectively arranged at two ends of the machine tool body (21), the first gripper (22) and the second gripper (23) being capable of reciprocating along the X2 axis direction, a first driving device (5) being respectively arranged above the first gripper (22) and the second gripper (23), the first gripper (22) and the second gripper (23) being capable of performing telescopic gripping actions along the Z1 axis and the Z2 axis directions respectively under the drive of the first driving device (5); The processing section (3) can process the two ends of the butt-jointed blank respectively. The processing section (3) is arranged between the first conveyor belt (11) and the second conveyor belt (12). The processing section (3) comprises a first processing axis (31) and a second processing axis (32). Second driving devices are respectively arranged below the first processing axis (31) and the second processing axis (32). The second driving devices can drive the first processing axis (31) and the second processing axis (32) to rotate around the C1 axis and the C2 axis respectively. The conversion device (4) is arranged between the first processing axis (31) and the second processing axis (32), and the conversion device (4) comprises a buckle (41) and a rotating shaft (42). The rotating shaft (42) is arranged perpendicular to the X2 axis, and the rotating shaft (42) can drive the buckle (41) to rotate along the A axis.

2. The oil pipe coupling processing machine tool according to claim 1, characterized in that: A tool turret (6) is provided between the conversion device (4) and the first processing axis (31) and the second processing axis (32), respectively, and a tool magazine (7) is provided on the outer sides of the first processing axis (31) and the second processing axis (32), respectively.

3. The oil pipe coupling processing machine tool according to claim 2, characterized in that: A conversion tool holder (71) is provided between the tool magazine (7) and the first processing axis (31) and the second processing axis (32), respectively.

4. The oil pipe coupling processing machine tool according to claim 1, characterized in that: The conversion device (4) further comprises a third drive device (9), wherein an output end of the third drive device (9) is connected to the rotating shaft (42).

5. The oil pipe coupling processing machine tool according to claim 1, characterized in that: A first slide rail (211) and a second slide rail (212) are arranged in parallel on the machine tool body (21); a slider (8) is provided between the first gripper (22) and the second gripper (23) and the machine tool body (21); and the first gripper (22) and the second gripper (23) are slidably connected to the machine tool body (21) via the slider (8).

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