A seamless steel pipe surface thread processing equipment

Abstract

The utility model relates to the field of seamless steel pipe processing technology, concretely to a seamless steel pipe surface thread processing equipment, including work table, the one side fixed of work table top is equipped with the clamping rotation mechanism for clamping one end of seamless steel pipe and controls its rotation, the top of work table is equipped with the tamping mechanism for tamping the other end of seamless steel pipe and slides, work table is located between clamping rotation mechanism and tamping mechanism and is equipped with the turning mechanism for carrying out thread processing to the surface of seamless steel pipe and slides, reach the effect that can integrate multiple turning tool parts with cutter head through setting turning tool switching subassembly and limiting component, can directly adapt to the thread processing of seamless steel pipe of different specifications, can also replace traditional bulk cutter storage mode, when switching, can realize preliminary positioning through mechanical clamping point, improve tool changing success rate, when processing, can avoid the deviation of turning tool part due to vibration or cutting force during processing.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe processing technology, and in particular to a device for processing threads on the surface of seamless steel pipes. Background Technology

[0002] Seamless steel pipe surface thread processing equipment is a special equipment used to process threads on the outer surface or end of seamless steel pipes. It is widely used in petrochemical, machinery manufacturing and construction engineering fields.

[0003] A seamless steel pipe surface threading device disclosed in Chinese Patent Publication No. CN222778785U uses a chuck to fix the steel pipe, a thread cutting tool or a cutting wheel to cut, and a lead screw to achieve axial feed to form threads. However, according to the threading equipment provided in related fields and existing technologies, traditional CNC lathes mostly adopt a single tool position design, which can only install one cutting tool or cutting wheel. If multiple threads need to be processed, the machine needs to be stopped and the tool needs to be changed manually, which is inefficient. Frequent tool changes can easily lead to tool installation errors, affecting thread accuracy. Spare tools need to be stored separately in a tool cabinet, and the retrieval status relies on manual recording, which poses a risk of mistaking or loss. At the same time, after the tool wears out, it needs to be sharpened and marked separately, which increases management costs. Moreover, when changing tools, tool resetting is required, which further prolongs the auxiliary time. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a seamless steel pipe surface thread processing equipment.

[0005] The objective of this utility model is achieved through the following technical solution: a seamless steel pipe surface thread processing device, comprising a worktable, a clamping and rotating mechanism fixedly provided on one side of the top of the worktable for clamping one end of the seamless steel pipe and controlling its rotation, a clamping mechanism slidably provided on the top of the worktable for clamping the other end of the seamless steel pipe, and a turning mechanism for thread processing on the surface of the seamless steel pipe slidably provided between the clamping and rotating mechanism and the clamping mechanism on the worktable; the turning mechanism includes a sliding seat slidably disposed at the bottom of the worktable, a sliding adjustment mechanism provided on the top of the sliding seat, a tool switching assembly provided on the sliding adjustment mechanism, a variety of turning tools mounted on the tool switching assembly, and a limiting component for positioning the turning tools; a drive mechanism for controlling the linear sliding of the worktable is provided on the top of the worktable corresponding to the positions of the clamping mechanism and the sliding seat.

[0006] Preferably, the tool switching assembly includes a fixed base, a tool disc is rotatably disposed at the center of the top of the fixed base, the tool disc has multiple tool slots, and various cutting tools are respectively installed inside the multiple tool slots.

[0007] Preferably, the limiting component includes a fixed shaft fixedly installed at the center of the top of the fixed base, a sleeve axially slidingly provided on the outer surface of the fixed shaft, a pressing member for conforming to the top of various cutting tools fixedly installed on the top of the sleeve, a lead screw rotatably provided at the center of the pressing member, the lead screw being threadedly connected to the fixed shaft, inserts longitudinally slidingly provided on the pressing member corresponding to the positions of the various cutting tool slots, a top cover fixedly provided on the top of each of the various inserts, and an elastic member fixedly provided between the bottom of the top cover and the top of the pressing member.

[0008] Preferably, the cutting tool has a insertion hole corresponding to the position of the insertion rod, the bottom end of the insertion rod is rounded, and the pressing part has a sliding hole corresponding to the positions of multiple insertion rods.

[0009] Preferably, the outer surface of the fixed shaft has two symmetrical sliding grooves, and the sleeve is fixedly provided with a slider that matches the two sliding grooves.

[0010] Preferably, the cutter head has a first rotating hole at the position corresponding to the fixed shaft, and the cutter head is connected to the first rotating hole through a bearing.

[0011] Preferably, the pressing component has a second rotating hole corresponding to the position of the lead screw, the lead screw is connected to the second rotating hole through a bearing, the center of the fixed shaft has a threaded hole adapted to the lead screw, and a knob is fixedly provided at the top end of the lead screw.

[0012] Preferably, the sliding adjustment mechanism includes a slide rail fixedly installed on the top of the sliding seat, a movable seat slidably provided on the outer surface of the slide rail, a frame fixedly installed on the top of the sliding seat, a first screw rotatably provided on one side inside the frame, a first motor for controlling its rotation fixedly installed on the outer side of the frame corresponding to the position of the first screw, a fixed rod fixedly provided on the other side inside the frame, a threaded hole adapted to the position of the movable seat corresponding to the position of the first screw, a through hole fitting against the outer surface of the movable seat corresponding to the position of the fixed rod, and the fixed seat fixedly installed on the top of the movable seat.

[0013] Preferably, the driving mechanism includes a second screw rotatably disposed on the top of the worktable, and a second motor for controlling the rotation of the second screw is fixedly mounted on the side of the worktable. The two second screws are respectively threadedly engaged with the clamping mechanism and the sliding seat.

[0014] The beneficial effects of this seamless steel pipe surface thread processing equipment are as follows: By setting up a tool switching component and a limiting component, it achieves the effect of integrating multiple cutting tools using the tool disc. This allows it to directly adapt to the thread processing of seamless steel pipes of different specifications, and it can replace the traditional method of storing loose tools, reducing the risk of tool loss or confusion caused by manual handling. Furthermore, during switching, preliminary positioning can be achieved through mechanical locking points to ensure that the cutting tool is quickly aligned with the processing position, improving the success rate of tool changing. During processing, it can prevent the cutting tool from shifting due to vibration or cutting force, ensuring the consistency of key dimensions such as thread profile and pitch. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the sliding adjustment state of the clamping mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram showing the sliding adjustment state of the sliding seat of this utility model;

[0019] Figure 4 This is a schematic diagram of the sliding adjustment mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram showing the state of the limiting component of this utility model when it is in the limiting state;

[0021] Figure 6 This is a schematic diagram showing the state of the limiting component of this utility model when it is in a semi-limited state;

[0022] Figure 7 This is a schematic diagram of the limiting component of this utility model;

[0023] Figure 8 This is a schematic diagram showing the disassembled structure of the cutting tool switching assembly of this utility model.

[0024] In the diagram: 1. Worktable; 2. Clamping and rotating mechanism; 3. Tightening mechanism; 4. Sliding seat; 5. Sliding adjustment mechanism; 501. Slide rail; 502. Moving seat; 503. Frame; 504. First screw; 505. First motor; 506. Fixed rod; 6. Tool switching assembly; 601. Fixed seat; 602. Tool disc; 6021. First rotating hole; 603. Tool groove; 7. Tool component; 701. Insertion hole; 8. Limiting assembly; 801. Fixed shaft; 8011. Slide groove; 802. Sleeve; 8021. Slider; 803. Pressing component; 8031. Sliding hole; 8032. Second rotating hole; 804. Lead screw; 8041. Knob; 805. Insertion rod; 806. Top cover; 807. Elastic component; 9. Drive mechanism; 901. Second screw; 902. Second motor. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0026] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0027] like Figures 1 to 8As shown, a seamless steel pipe surface thread processing device includes a worktable 1. A clamping and rotating mechanism 2 is fixedly mounted on one side of the top of the worktable 1 for clamping one end of the seamless steel pipe and controlling its rotation. A clamping mechanism 3 is slidably mounted on the top of the worktable 1 for clamping the other end of the seamless steel pipe. A turning mechanism for thread processing the seamless steel pipe surface is slidably mounted between the clamping and rotating mechanism 2 and the clamping mechanism 3 on the worktable 1. The turning mechanism includes a sliding seat 4 slidably mounted on the bottom of the worktable 1. A sliding adjustment mechanism 5 is mounted on the top of the sliding seat 4. A tool switching assembly 6 is mounted on the sliding adjustment mechanism 5. The lathe tool component 7 is provided with a limiting component 8 for positioning the lathe tool component 7 on the tool switching assembly 6; the top of the worktable 1 is provided with a drive mechanism 9 for controlling the linear sliding of the clamping mechanism 3 and the sliding seat 4 respectively; the drive mechanism 9 includes a second screw 901 rotatably set on the top of the worktable 1, and a second motor 902 for controlling the rotation of the second screw 901 is fixedly installed on the side of the worktable 1. The two second screws 901 are threadedly engaged with the clamping mechanism 3 and the sliding seat 4 respectively. By controlling the rotation of the second screws 901 through the second motor 902, the clamping mechanism 3 or the sliding seat 4 can be controlled to slide linearly on the top of the worktable 1 independently.

[0028] like Figures 4 to 8 As shown, the cutting tool switching assembly 6 includes a fixed base 601, a tool disc 602 rotatably mounted at the center of the top of the fixed base 601, and multiple tool slots 603 opened on the tool disc 602. Various cutting tools 7 are respectively installed inside the multiple tool slots 603. The sliding adjustment mechanism 5 includes a slide rail 501 fixedly mounted on the top of the slide seat 4, a movable seat 502 slidably mounted on the outer surface of the slide rail 501, a frame 503 fixedly mounted on the top of the slide seat 4, a first screw 504 rotatably mounted on one side inside the frame 503, a first motor 505 for controlling its rotation fixedly mounted on the outer side of the frame 503 corresponding to the position of the first screw 504, a fixed rod 506 fixedly mounted on the other side inside the frame 503, a threaded hole adapted to the position of the movable seat 502 corresponding to the position of the first screw 504, and a through hole that fits the outer surface of the movable seat 502 corresponding to the position of the fixed rod 506. The fixed base 601 is fixedly mounted on the top of the movable seat 502.

[0029] In summary, such as Figure 5 and Figure 6 As shown, the tool head 602 integrates multiple turning tools 7, eliminating the need for frequent replacement of external tools. It can directly adapt to the threading of seamless steel pipes of different specifications, reducing process interruptions caused by tool replacement and improving the equipment's adaptability to diverse production tasks. The turning tools 7 are fixedly installed on the tool head 602, replacing the traditional method of storing loose tools, reducing the risk of tool loss or confusion caused by manual handling, while also reducing the space occupied by tool storage and improving the standardization of tool management in the workshop.

[0030] like Figures 5 to 8 As shown, the limiting assembly 8 includes a fixed shaft 801 fixedly installed at the center of the top of the fixed base 601. A first rotating hole 6021 is provided on the cutter head 602 corresponding to the position of the fixed shaft 801. The cutter head 602 is connected to the first rotating hole 6021 via a bearing. Using the aforementioned bearing, the frictional force during the rotation of the cutter head 602 can be reduced, improving the stability of the cutter head 602 during rotation. A sleeve 802 is axially slidably provided on the outer surface of the fixed shaft 801, such as... Figure 7 and Figure 8 As shown, two symmetrical grooves 8011 are formed on the outer surface of the fixed shaft 801. Sleeve 802 is fixedly provided with corresponding sliders 8021 at the positions of the two grooves 8011. The cooperation between the sliders 8021 and the grooves 8011 ensures that sleeve 802 can only slide axially, while also improving the stability of sleeve 802 during axial sliding. A pressing member 803 for fitting the top of various lathe tool parts 7 is fixedly installed on the top of sleeve 802. A lead screw 804 is rotatably provided at the center of the pressing member 803, and a second rotating hole 803 is formed in the pressing member 803 corresponding to the position of the lead screw 804. 2. The lead screw 804 is connected to the second rotating hole 8032 via a bearing. Using the bearing, the lead screw 804 can control the longitudinal sliding of the pressing component 803. A threaded hole matching the lead screw 804 is provided at the center of the fixed shaft 801. A knob 8041 is fixedly provided at the top of the lead screw 804. The lead screw 804 is threadedly connected to the fixed shaft 801. Insert rods 805 are longitudinally slidably provided on the pressing component 803 corresponding to the positions of multiple cutter slots 603. A top cover 806 is fixedly provided at the top of each insert rod 805. An elastic element 807 is fixedly provided between the bottom of the top cover 806 and the top of the pressing component 803. Figure 5 and Figure 6 As shown, the cutting tool 7 has a insertion hole 701 at the position corresponding to the insertion rod 805, the bottom end of the insertion rod 805 is formed with a rounded corner, and the pressing part 803 has a sliding hole 8031 ​​at the positions corresponding to multiple insertion rods 805.

[0031] In summary, such as Figures 5 to 8As shown, only the rounded part of the insert rod 805 remains inside the insertion hole 701 of the cutting tool 7 (at this time, the insert rod 805 is in a semi-limited state). When switching the cutting tool 7, the semi-limited state achieves initial positioning through mechanical locking points. The clicking sound provides both tactile and audible feedback, ensuring that the cutting tool 7 is quickly aligned with the machining position, reducing debugging time and improving the success rate of tool changing. In the limited state, the cutting tool 7 and the cutter head 602 are locked in position, preventing the cutting tool 7 from shifting due to vibration or cutting force during machining, and ensuring the consistency of key dimensions such as thread profile and pitch (in the limited state, the bottom end of the sleeve 802 is in contact with the top end of the cutter head 602). After the limit is released (that is, when the pressing part 803 is completely removed), the cutter head 602 can be freely rotated or disassembled, which facilitates the sharpening and replacement of worn cutting tool 7, or the addition of special tools according to new machining requirements, enhancing the adaptability of the equipment.

[0032] The work process is as follows:

[0033] S1: As Figures 1 to 3 As shown, when the seamless steel pipe is threaded, one end of the seamless steel pipe is first fixed by the clamping and rotating mechanism 2, and then the clamping mechanism 3 is controlled by one of the driving mechanisms 9 to move to the other end of the seamless steel pipe and clamp the other end of the seamless steel pipe.

[0034] S2: As Figures 1 to 6 As shown, after the seamless steel pipe is fixed, the seamless steel pipe is first rotated by the clamping and rotating mechanism 2, and then the cutting tool switching assembly 6 is moved toward the seamless steel pipe by the sliding adjustment mechanism 5, so that one of the cutting tools 7 contacts the seamless steel pipe, thereby performing thread processing on the surface of the seamless steel pipe.

[0035] S3: As Figures 5 to 8 As shown, when machining a different type of thread, the screw 804 is rotated via the knob 8041, causing the pressing component 803 to move multiple insert rods 805 upwards. This results in only the rounded corner portion of the insert rod 805 remaining inside the insertion hole 701 of the cutting tool 7 (at this time, the insert rod 805 is in a semi-limited state). The tool disc 602 can then be rotated to switch the positions of the various cutting tools 7. When the tool disc 602 rotates, the rounded corner of the insert rod 805 is subjected to an upward compressive force, causing the insert rod 805 to slide upwards. Simultaneously, the top cover 80... 6 will pull the elastic element 807 to deform. When the insertion rod 805 corresponds to the insertion hole 701 of another cutting tool 7, the elastic element 807 will cause the rounded part of the insertion rod 805 to enter the insertion hole 701. After the switching is completed, the screw 804 is rotated in the opposite direction by the knob 8041, so that the pressing element 803 drives multiple insertion rods 805 to move downward, so that the insertion rod 805 is inserted into the insertion hole 701 and the pressing element 803 is in contact with the cutting tool 7 (at this time, the insertion rod 805 is in the limited state), thus completing the limiting of the cutting tool 7 and the cutting head 602.

[0036] S4: In summary, firstly, by integrating multiple cutting tools 7 into the cutter head 602, there is no need to frequently change external tools. This allows for direct adaptation to the threading of seamless steel pipes of different specifications, reducing process interruptions caused by tool changes and improving the equipment's adaptability to diverse production tasks. Secondly, the cutting tools 7 are fixedly installed on the cutter head 602, replacing the traditional method of storing loose tools. This reduces the risk of tool loss or confusion due to manual handling, while also reducing the space occupied by tool storage and improving the standardization of tool management in the workshop. Thirdly, when switching cutting tools 7, the equipment is in a semi-limited state. Initial positioning is achieved through mechanical locking points, and the clicking sound provides both tactile and audible feedback, ensuring that the cutting tool 7 is quickly aligned with the machining position, reducing debugging time and improving the success rate of tool changes. In the limit state, the cutting tool 7 and the tool head 602 are locked to prevent the cutting tool 7 from shifting due to vibration or cutting force during machining, ensuring the consistency of key dimensions such as thread profile and pitch. After the limit is released, the tool head 602 can be freely rotated or disassembled, which facilitates the sharpening and replacement of worn cutting tool 7, or the addition of special tools according to new machining requirements, enhancing the adaptability of the equipment.

[0037] The clamping and rotating mechanism 2, the clamping mechanism 3, the sliding adjustment mechanism 5, the cutting tool 7, and the driving mechanism 9 described in this application are all known technologies in this field, and therefore their specific structures and working principles are not described in detail.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A seamless steel pipe surface thread processing equipment, characterized in that: The system includes a workbench (1), a clamping and rotating mechanism (2) for clamping one end of a seamless steel pipe and controlling its rotation is fixedly provided on one side of the top of the workbench (1), a clamping mechanism (3) for clamping the other end of the seamless steel pipe is slidably provided on the top of the workbench (1), and a turning mechanism for threading the surface of the seamless steel pipe is slidably provided between the clamping and rotating mechanism (2) and the clamping mechanism (3) on the workbench (1). The turning mechanism includes a sliding seat (4) slidably disposed at the bottom of the worktable (1), a sliding adjustment mechanism (5) is provided on the top of the sliding seat (4), a tool switching assembly (6) is provided on the sliding adjustment mechanism (5), a variety of cutting tools (7) are installed on the tool switching assembly (6), and a limiting assembly (8) for positioning the cutting tools (7) is provided on the tool switching assembly (6). The top of the worktable (1) is provided with a drive mechanism (9) for controlling its linear sliding, corresponding to the positions of the clamping mechanism (3) and the sliding seat (4).

2. The seamless steel pipe surface thread processing equipment according to claim 1, characterized in that: The tool switching assembly (6) includes a fixed base (601), and a tool disc (602) is rotatably provided at the center of the top of the fixed base (601). The tool disc (602) has multiple tool slots (603), and various cutting tools (7) are respectively installed inside the multiple tool slots (603).

3. The seamless steel pipe surface thread processing equipment according to claim 2, characterized in that: The limiting component (8) includes a fixed shaft (801) fixedly installed at the center of the top of the fixed base (601). A sleeve (802) is axially slidably provided on the outer surface of the fixed shaft (801). A pressing component (803) for fitting the top of various cutting tool parts (7) is fixedly installed on the top of the sleeve (802). A lead screw (804) is rotatably provided at the center of the pressing component (803). The lead screw (804) is threadedly connected to the fixed shaft (801). Insert rods (805) are longitudinally slidably provided on the pressing component (803) at the positions corresponding to the multiple cutting tool slots (603). A top cover (806) is fixedly provided at the top of the multiple insert rods (805). An elastic element (807) is fixedly provided between the bottom of the top cover (806) and the top of the pressing component (803).

4. The seamless steel pipe surface thread processing equipment according to claim 3, characterized in that: The cutting tool (7) has a insertion hole (701) at the position corresponding to the insertion rod (805), the bottom end of the insertion rod (805) is formed with a rounded corner, and the pressing part (803) has a sliding hole (8031) at the position corresponding to the multiple insertion rods (805).

5. The seamless steel pipe surface thread processing equipment according to claim 3, characterized in that: The outer surface of the fixed shaft (801) is symmetrically provided with two sliding grooves (8011), and the sleeve (802) is fixedly provided with a slider (8021) that matches the two sliding grooves (8011).

6. The seamless steel pipe surface thread processing equipment according to claim 3, characterized in that: The cutter head (602) has a first rotating hole (6021) at the position corresponding to the fixed shaft (801), and the cutter head (602) is connected to the first rotating hole (6021) through a bearing.

7. The seamless steel pipe surface thread processing equipment according to claim 3, characterized in that: The pressing component (803) has a second rotating hole (8032) at the position corresponding to the lead screw (804). The lead screw (804) is connected to the second rotating hole (8032) through a bearing. The fixed shaft (801) has a threaded hole at the center that is adapted to the lead screw (804). A knob (8041) is fixedly provided at the top end of the lead screw (804).

8. The seamless steel pipe surface thread processing equipment according to claim 3, characterized in that: The sliding adjustment mechanism (5) includes a slide rail (501) fixedly installed on the top of the sliding seat (4), a movable seat (502) slidably provided on the outer surface of the slide rail (501), a frame (503) fixedly installed on the top of the sliding seat (4), a first screw (504) rotatably provided on one side inside the frame (503), a first motor (505) for controlling its rotation fixedly installed on the outer side of the frame (503) corresponding to the position of the first screw (504), a fixed rod (506) fixedly provided on the other side inside the frame (503), a threaded hole adapted to the position of the movable seat (502) corresponding to the position of the first screw (504), a through hole that fits the outer surface of the movable seat (502) corresponding to the position of the fixed rod (506), and a fixed seat (601) fixedly installed on the top of the movable seat (502).

9. The seamless steel pipe surface thread processing equipment according to claim 1, characterized in that: The drive mechanism (9) includes a second screw (901) rotatably mounted on the top of the workbench (1). A second motor (902) for controlling the rotation of the second screw (901) is fixedly mounted on the side of the workbench (1). The two second screws (901) are threadedly engaged with the clamping mechanism (3) and the sliding seat (4) respectively.

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