Thread machining tool and using method

Abstract

The invention relates to a thread machining tool and a using method, and relates to the technical field of thread machining, the thread machining tool comprises a mounting frame, a clamping piece is mounted at one end of the mounting frame in the length direction, a tailstock is mounted at the other end of the mounting frame in the length direction, a grooving assembly is slidably arranged on the mounting frame, and a supporting mechanism is arranged on the mounting frame; the supporting mechanism comprises a front supporting assembly and a rear supporting assembly which are arranged on the two sides of the sliding direction of the grooving assembly respectively, the front supporting assembly comprises a front sliding table and a front supporting ring, the front sliding table is arranged on the mounting frame in a sliding mode, and the front supporting ring is mounted on the front sliding table; the rear supporting assembly comprises a rear sliding table and a rear supporting ring, the rear sliding table is arranged on the mounting frame in a sliding mode, the rear supporting ring is mounted on the rear sliding table, and the effect of improving the drilling collar grooving stability is achieved.

Description

Technical Field

[0001] The present application relates to the field of thread processing, and in particular to a thread processing tool and a use method thereof. Background Art

[0002] The drill collar is located at the bottom of the drill string and is the main component of the lower drilling tool assembly. Its main characteristics are thick wall, large gravity and rigidity. The outer side of the existing drill collar is usually provided with a thread groove for auxiliary drilling, which improves the efficiency of drilling.

[0003] The existing thread groove is usually formed by cutting. The two ends of the drill collar in the length direction are fixed by a processing table and the drill collar is rotated. At the same time, the tool is driven to slide and cut the thread groove on the outside of the drill collar. However, due to the long length of the drill collar, when cutting the groove in the middle area of ​​the drill collar, the drill collar is easily subjected to force and bent, which can easily lead to irregular cutting of the thread groove and affect the effect of auxiliary drilling. Summary of the invention

[0004] In order to improve the stability of a drill collar when cutting grooves, the present application provides a thread processing tool.

[0005] The present application provides a thread processing tool adopting the following technical solution: A thread processing tool comprises a mounting frame, a clamping member is installed at one end of the mounting frame in the length direction, a tailstock is installed at the other end of the mounting frame in the length direction, a grooving assembly is slidably arranged on the mounting frame, a supporting mechanism is arranged on the mounting frame, the supporting mechanism comprises a front supporting assembly and a rear supporting assembly respectively arranged on both sides of the sliding direction of the grooving assembly, the front supporting assembly comprises a front sliding table and a front supporting ring, the front sliding table is slidably arranged on the mounting frame, the front supporting ring is installed on the front sliding table, the rear supporting assembly comprises a rear sliding table and a rear supporting ring, the rear sliding table is slidably arranged on the mounting frame, and the rear supporting ring is installed on the rear sliding table.

[0006] By adopting the above technical solution, by adding a front support assembly and a rear support assembly before and after the cutting assembly, the drill collar can be supported when the grooving assembly continues to cut the thread groove, thereby reducing the probability of the drill collar being deformed when cutting the middle position of the drill collar, improving the stability of the drill collar when cutting grooves, and improving the quality of the thread groove.

[0007] Optionally, the grooving assembly includes a grooving frame and a cutting knife, the grooving frame is slidably arranged on the mounting frame, the cutting knife is installed on the grooving frame, connecting rods are arranged between the front sliding platform and the grooving frame and between the rear sliding platform and the grooving frame, and the front sliding platform and the rear sliding platform are connected to the grooving frame via the connecting rods.

[0008] Optionally, the connecting rod includes a fixed part and a sliding part, the fixed part is fixed on the groove cutting frame, the sliding part is slidably arranged on the fixed part, the sliding part slides toward or away from the groove cutting frame, and the end of the sliding part away from the fixed part is installed on the front sliding platform or the rear sliding platform.

[0009] Optionally, the sliding portion can be detachably arranged on the front sliding platform or the rear sliding platform.

[0010] Optionally, the front support ring includes a front lower half ring and a front upper half ring, the front lower half ring is mounted on the front sliding platform, one end of the front upper half ring is hinged on the front lower half ring, and the other end of the front upper half ring is detachably mounted on the front lower half ring, and the rear support ring includes a rear lower half ring and a rear upper half ring, the rear lower half ring is mounted on the rear sliding platform, one end of the rear upper half ring is hinged on the rear lower half ring, and the other end of the rear upper half ring is detachably mounted on the rear lower half ring.

[0011] Optionally, a lifting member is provided between the front support ring and the front sliding platform, and between the rear support ring and the rear sliding platform, and the lifting member drives the front support ring or the rear support ring to rise and fall.

[0012] Optionally, a rotating motor is provided between the front upper half ring and the front lower half ring and between the rear upper half ring and the rear lower half ring. The rotating motor installed between the front upper half ring and the front lower half ring drives the front upper half ring to rotate on the front lower half ring, and the rotating motor installed between the rear upper half ring and the rear lower half ring drives the front and rear upper half rings to rotate on the rear lower half ring.

[0013] Optionally, the inner wall of the rear support ring is provided with soft bristles.

[0014] A method for using a thread processing tool, which is used for the thread processing tool, comprises the following steps: S1: Install the drill collar and install the drill collar on the mounting frame through the clamp and the base; S2: Connect the front support assembly to the slotting frame; S3: cutting the thread groove, rotating the drill collar and driving the groove cutting frame to slide to cut the groove on the drill collar; S4: Connect the rear support assembly, and after the slot cutting frame slides to a certain distance away from the clamping member, the rear support assembly is connected to the slot cutting frame; S5: Disconnect the front support assembly. When the front support assembly is close to or abuts against the tailstock, disconnect the front support assembly and continue cutting the thread groove. S6: Remove the drill collar. After the thread groove cutting is completed, remove the drill collar.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. By adding the front support assembly and the rear support assembly before and after the cutting assembly, the drill collar can be supported when the grooving assembly continues to cut the thread groove, thereby reducing the probability of deformation of the drill collar when cutting the middle position of the drill collar, improving the stability of the drill collar when cutting the groove, and improving the quality of the thread groove; 2. The front support assembly and the rear support assembly are driven to slide synchronously with the grooving assembly through the connecting rod, so that both sides of the drill collar are supported when the grooving assembly is grooving, reducing the probability of the drill collar being bent and deformed by force, and improving the grooving effect; 3. The front support assembly and the rear support assembly are driven to slide synchronously with the grooving assembly through the connecting rod, so that both sides of the drill collar are supported when the grooving assembly is grooving, reducing the probability of the drill collar being bent and deformed by force, and improving the grooving effect; 4. The front support assembly and the rear support assembly are driven to slide synchronously with the grooving assembly through the connecting rod, so that both sides of the drill collar are supported when the grooving assembly is grooving, reducing the probability of the drill collar being bent and deformed by force, and improving the grooving effect; 5. When the drill collar as a whole needs to be threaded, the area clamped by the clamp cannot cut the thread groove at one time, and the second cutting is likely to cause the two thread groove cuttings to be misaligned. The cutter is guided into the thread groove of the first cutting by the guidance of the thread ring on the front support ring, and then the subsequent cutting is performed by driving the cutter through the thread ring on the rear support ring, thereby ensuring the synchronization of the two cutting positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 yes Figure 1 Magnified view of part A in the middle.

[0018] Figure 3 yes Figure 1 Magnified view of part B in the middle.

[0019] Figure 4 It is an exploded view of the overall structure of the embodiment of the present application from another perspective.

[0020] Figure 5 yes Figure 4 Magnified view of section C in the middle.

[0021] In the figure, 1, mounting frame; 2, clamping part; 3, tailstock; 4, slotting assembly; 41, slotting frame; 42, cutter; 5, supporting mechanism; 51, front supporting assembly; 511, front sliding table; 512, front supporting ring; 5121, front lower half ring; 5122, front upper half ring; 52, rear supporting assembly; 521, rear sliding table; 522, rear supporting ring; 5221, rear lower half ring; 5222, rear upper half ring; 6, connecting rod; 61, fixing part; 62, sliding part; 7, lifting part; 8, rotating motor; 9, soft brush bristles; 10, electromagnet; 11, iron sheet. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-5 The present application is further described with specific embodiments: First of all, it should be noted that in the description of this application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does 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 cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0023] The present application embodiment discloses a thread processing tool, referring to Figure 1 , Figure 2 and Figure 3, comprising a long strip-shaped mounting frame 1, a clamping member 2 is mounted at one end in the length direction of the mounting frame 1, in this embodiment, the clamping member 2 is a machine head with a three-jaw chuck mounted thereon, the three-jaw chuck is driven by a motor to rotate on the machine head, a tailstock 3 is mounted at the other end in the length direction of the mounting frame 1, a slotting assembly 4 is slidably arranged on the mounting frame 1, the slotting assembly 4 slides along the length direction of the mounting frame 1, a supporting mechanism 5 is arranged on the mounting frame 1, and the supporting mechanism 5 comprises a front supporting assembly 51 and a rear supporting assembly 52 respectively arranged on both sides of the sliding direction of the slotting assembly 4, the front The support assembly 51 includes a front sliding platform 511 and a front support ring 512, the front sliding platform 511 is slidably set on the mounting frame 1, and the front support ring 512 is installed on the front sliding platform 511, and the rear support assembly 52 includes a rear sliding platform 521 and a rear support ring 522, the rear sliding platform 521 is slidably set on the mounting frame 1, and the rear support ring 522 is installed on the rear sliding platform 521, the front support ring 512 is sleeved on the drill collar on the side of the grooving assembly 4 where grooving has not yet been performed, and the rear support ring 522 is sleeved on the drill collar on the side of the grooving assembly 4 where grooving has been completed.

[0024] Reference Figure 1 , Figure 4 and Figure 5The grooving assembly 4 includes a grooving frame 41 slidably arranged on the mounting frame 1 and a cutter 42 installed on the grooving frame 41. The grooving frame 41 is driven by installing a rodless cylinder on the frame 1. The sliding of the grooving frame 41 is achieved by driving the rodless cylinder. In this embodiment, the cutter 42 is a threaded cutter 42. The cutter 42 slides on the grooving frame 41 toward or away from the drill collar through the cylinder. A connecting rod 6 is provided between the front sliding platform 511 and the grooving frame 41 and between the rear sliding platform 521 and the grooving frame 41. The front sliding platform 511 and the rear sliding platform 521 are connected to the groove cutting frame 41 through the connecting rod 6, and the front support assembly 51 and the rear support assembly 52 are driven by the connecting rod 6 to slide synchronously with the groove cutting assembly 4, so that when the groove cutting assembly 4 is cutting grooves, both sides of the drill collar are supported, which reduces the probability of the drill collar being bent and deformed by force, and improves the groove cutting effect; the connecting rod 6 includes a fixed part 61 and a sliding part 62, the fixed part 61 is fixed on the groove cutting frame 41, and the sliding part 62 is slidably arranged on the fixed part 61. In this embodiment, the fixed part 61 and the sliding part The sliding portion 62 is a long rod body, the sliding portion 62 is inserted into the fixing portion 61 and slides in the fixing portion 61, the sliding portion 62 is fixed on the fixing portion 61 by bolts, and the sliding portion 62 can slide on the fixing portion 61 by loosening the bolts, and the sliding portion 62 slides toward or away from the slotting frame 41, and the sliding portion 62 is installed on the front sliding platform 511 or the rear sliding platform 521 at one end away from the fixing portion 61; the sliding portion 62 can be detachably arranged on the front sliding platform 511 or the rear sliding platform 521, and in this embodiment, the sliding portion 62 and the front sliding platform 511 are connected to each other. The moving platform 511 or the rear sliding platform 521 is detachably connected by means of magnetic attraction, and an iron sheet 11 is fixedly provided at one end of the sliding portion 62 away from the fixed portion 61. The front sliding platform 511 and the rear sliding platform 521 are both provided with an electromagnet 10. By energizing the electromagnet 10 to generate a magnetic force, the sliding portion 62 is adsorbed and fixed on the front sliding platform 511 or the rear sliding platform 521. The setting of the sliding portion 62 can adjust the length of the connecting rod 6, thereby adjusting the distance between the front support assembly 51 and the rear support assembly 52 and the grooving assembly 4 according to the length of the drill collar.

[0025] Reference Figure 1 , Figure 2 and Figure 3The front support ring 512 includes a front lower half ring 5121 and a front upper half ring 5122, the front lower half ring 5121 is installed on the front sliding platform 511, one end of the front upper half ring 5122 is hingedly arranged on the front lower half ring 5121, and the other end of the front upper half ring 5122 is detachably installed on the front lower half ring 5121, and the rear support ring 522 includes a rear lower half ring 5221 and a rear upper half ring 5222, the rear lower half ring 5221 is installed on the rear sliding platform 521, and the rear upper half ring One end of 5222 is hingedly arranged on the rear lower half ring 5221, and the other end of the rear upper half ring 5222 can be detachably installed on the rear lower half ring 5221. The front support ring 512 and the rear support ring 522 are both composed of two half rings, which can facilitate the sleeve installation of the front support ring 512 and the rear support ring 522 on the drill collar; a lifting member 7 is arranged between the front support ring 512 and the front sliding platform 511 and between the rear support ring 522 and the rear sliding platform 521. In this embodiment, the lifting member 7 The lowering member 7 uses a lifting cylinder, and the lifting member 7 drives the front support ring 512 or the rear support ring 522 to rise and fall. A rotating motor 8 is arranged between the front upper ring 5122 and the front lower ring 5121, and between the rear upper ring 5222 and the rear lower ring 5221. The rotating motor 8 installed between the front upper ring 5122 and the front lower ring 5121 drives the front upper ring 5122 to rotate on the front lower ring 5121, and the rotating motor 8 installed between the rear upper ring 5222 and the rear lower ring 52 The rotating motor 8 between 21 drives the front and rear upper half rings 5222 to rotate on the rear lower half ring 5221. The setting of the rotating motor 8 can facilitate the opening or closing of the front support ring 512 and the rear support ring 522, thereby facilitating the opening or closing of the front support ring 512 or the rear support ring 522 during the grooving process. The setting of the lifting member 7 can take the front support ring 512 or the rear support ring 522 away from the drill collar when the front support ring 512 or the rear support ring 522 is no longer needed.

[0026] Reference Figure 1 , Figure 2 and Figure 3, the inner wall of the rear support ring 522 is detachably provided with soft bristles 9, which can be installed only on the rear lower half ring 5221 or the rear upper half ring 5222, or on both the rear lower half ring 5221 and the rear upper half ring 5222, and the soft bristles 9 can extend into the cut thread groove; the front support ring 512 can clean the drill collar before cutting the thread groove to reduce the influence of debris on the bottom of the thread groove, and the rear support ring 522 can clean the cut thread groove to reduce the accumulation of debris in the thread groove and the influence of subsequent use; the front support ring 512 and the rear support ring 522 can A threaded ring that matches the thread groove is installed. The front support ring 512 can rotate on the front sliding table 511, and the rear support ring 522 can rotate on the rear sliding table 521. When the drill collar as a whole needs to cut the thread groove, the area clamped by the clamping part 2 cannot cut the thread groove at one time. The second cutting is likely to cause the two thread grooves to be misaligned. The cutter 42 is guided into the thread groove of the first cutting by the guidance of the threaded ring on the front support ring 512, and then the subsequent cutting is performed by driving the cutter 42 through the threaded ring on the rear support ring, thereby ensuring the synchronization of the two cutting positions.

[0027] A method for using a thread processing tool, which is used for a thread processing tool, and includes the following steps: S1: installing a drill collar, clamping and fixing one end of a drill collar by a three-jaw chuck, and abutting the other end of the three-jaw chuck by a tailstock 3, so that the drill collar is fixed on a mounting frame 1; S2: connecting a front support assembly 51, adjusting the length of two connecting rods 6 to the required length and then sliding a front sliding table 511, so that the front sliding table 511 and the connecting rod 6 are connected, thereby completing the connection between the front support assembly 51 and a slotting frame 41; S3: cutting a thread groove, rotating the drill collar by rotating the three-jaw chuck and driving the slotting frame 41 to slide to cut a groove on the drill collar; S4: connecting a rear support assembly 52, and after the slotting frame 41 slides to a certain distance away from the three-jaw chuck, the electromagnet 10 on the rear sliding table 521 and the iron sheet 11 on the sliding rod are adsorbed together to achieve mutual connection, thereby achieving the rear support assembly 52 Connected to the groove cutting frame 41; S5: disconnect the front support assembly 51, and after disconnecting the front support assembly 51 when the front support assembly 51 is close to or abuts the tail stock 3, continue to cut the thread groove until the thread groove is processed; S6: remove the drill collar, and remove the drill collar after the thread groove cutting is completed; because the groove on the drill collar starts to slide from the side close to the three-jaw chuck toward the tail stock 3, the rear support ring 522 cannot be normally connected to the groove cutting frame 41 before the cutting starts, and the front support ring 512 will affect the continued sliding of the groove cutting frame 41 after abutting the tail stock 3. Through the connection or disconnection of the connecting rod 6, the front support assembly 51 or the rear support assembly 52 can be connected or disconnected at an appropriate time, and the setting of the driving motor and the lifting member 7 is coordinated to enable the driving ring to be mounted on the drill collar at an appropriate time, so that it can play a supporting role when cutting the thread groove and will not affect the normal cutting of the thread groove.

[0028] The implementation principle of the embodiment of the present application is as follows: one end of the drill collar is clamped and fixed by a three-jaw chuck, and the tailstock 3 is abutted against the other end of the three-jaw chuck, so that the drill collar is fixedly mounted on the mounting frame 1, and the groove cutting frame 41 is moved to the position where the thread groove starts to be cut; after adjusting the length of the two connecting rods 6 to the required length, the front sliding platform 511 is slid to connect the front sliding platform 511 to the connecting rod 6, and at the same time, the rear sliding platform 521 is slid to the connection point position with the groove cutting frame 41; the drill collar is rotated by rotating the three-jaw chuck and the groove cutting is driven to abut against the drill collar at the same time. And drive the grooving frame 41 to slide and groove the drill collar; the grooving frame 41 slides away from the three-jaw chuck, and when the electromagnet 10 on the rear sliding platform 521 fits with the iron sheet 11 on the sliding rod, energize the electromagnet 10 to adsorb the sheet through the electromagnet 10 to connect the rear support component 52 with the grooving frame 41; when the front support component 51 is close to or abuts the tail stock 3, disconnect the front support component 51 and continue to cut the thread groove until the thread groove is processed. After the thread groove cutting is completed, remove the drill collar to complete the cutting of the drill collar thread groove.

[0029] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A thread processing tool, comprising a mounting frame (1), a clamping member (2) being mounted at one end in the length direction of the mounting frame (1), a tailstock (3) being mounted at the other end in the length direction of the mounting frame (1), a grooving assembly (4) being slidably disposed on the mounting frame (1), characterized in that: A support mechanism (5) is provided on the mounting frame (1), and the support mechanism (5) comprises a front support assembly (51) and a rear support assembly (52) respectively arranged on both sides of the sliding direction of the groove cutting assembly (4); the front support assembly (51) comprises a front sliding platform (511) and a front support ring (512); the front sliding platform (511) is slidingly arranged on the mounting frame (1); the front support ring (512) is mounted on the front sliding platform (511); the rear support assembly (52) comprises a rear sliding platform (521) and a rear support ring (522); the rear sliding platform (521) is slidingly arranged on the mounting frame (1); and the rear support ring (522) is mounted on the rear sliding platform (521).

2. A thread processing tool according to claim 1, characterized in that: The grooving assembly (4) comprises a grooving frame (41) and a cutting knife (42); the grooving frame (41) is slidably mounted on the mounting frame (1); the cutting knife (42) is mounted on the grooving frame (41); connecting rods (6) are provided between the front sliding platform (511) and the grooving frame (41) and between the rear sliding platform (521) and the grooving frame (41); the front sliding platform (511) and the rear sliding platform (521) are both connected to the grooving frame (41) via the connecting rods (6).

3. A thread processing tool according to claim 2, characterized in that: The connecting rod (6) comprises a fixed portion (61) and a sliding portion (62); the fixed portion (61) is fixedly mounted on the slot cutting frame (41); the sliding portion (62) is slidably mounted on the fixed portion (61); the sliding portion (62) slides toward or away from the slot cutting frame (41); and one end of the sliding portion (62) away from the fixed portion (61) is mounted on a front sliding platform (511) or a rear sliding platform (521).

4. A thread processing tool according to claim 3, characterized in that: The sliding portion (62) can be detachably arranged on the front sliding platform (511) or the rear sliding platform (521).

5. A thread processing tool according to claim 4, characterized in that: The front support ring (512) comprises a front lower half ring (5121) and a front upper half ring (5122); the front lower half ring (5121) is mounted on the front sliding platform (511); one end of the front upper half ring (5122) is hingedly arranged on the front lower half ring (5121); the other end of the front upper half ring (5122) is detachably mounted on the front lower half ring (5121); the rear support ring (522) comprises a rear lower half ring (5221) and a rear upper half ring (5222); the rear lower half ring (5221) is mounted on the rear sliding platform (521); one end of the rear upper half ring (5222) is hingedly arranged on the rear lower half ring (5221); the other end of the rear upper half ring (5222) is detachably mounted on the rear lower half ring (5221).

6. A thread processing tool according to claim 5, characterized in that: A lifting member (7) is provided between the front support ring (512) and the front sliding platform (511), and between the rear support ring (522) and the rear sliding platform (521); the lifting member (7) drives the front support ring (512) or the rear support ring (522) to rise and fall.

7. A thread processing tool according to claim 6, characterized in that: A rotating motor (8) is provided between the front upper half ring (5122) and the front lower half ring (5121) and between the rear upper half ring (5222) and the rear lower half ring (5221); the rotating motor (8) installed between the front upper half ring (5122) and the front lower half ring (5121) drives the front upper half ring (5122) to rotate on the front lower half ring (5121); and the rotating motor (8) installed between the rear upper half ring (5222) and the rear lower half ring (5221) drives the front and rear upper half rings (5222) to rotate on the rear lower half ring (5221).

8. A thread processing tool according to claim 7, characterized in that: The inner wall of the rear support ring (522) is provided with soft bristles (9).

9. A method for using a thread processing tool, which is used for the thread processing tool according to claim 8, comprising the following steps: S1: Installing the drill collar, installing the drill collar on the mounting frame (1) through the clamping member (2) and the base; S2: Connecting the front support assembly, connecting the front support assembly (51) to the slotting frame (41); S3: cutting the thread groove, rotating the drill collar and driving the groove cutting frame (41) to slide and cut the groove on the drill collar; S4: Connecting the rear support assembly, the slotting frame (41) slides to a certain distance away from the clamping member (2), and then connecting the rear support assembly (52) to the slotting frame (41); S5: disconnecting the front support assembly, and continuing to cut the thread groove after disconnecting the front support assembly (51) when the front support assembly (51) is close to or abuts against the tailstock (3); S6: Remove the drill collar. After the thread groove cutting is completed, remove the drill collar.

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