A device for positioning the machining depth of the inner bore step surface of a steel pipe

Abstract

This application discloses a positioning device for machining depth of stepped surfaces of steel pipe inner holes, belonging to the field of steel pipe machining positioning technology. The positioning device includes a machining table and a control panel fixedly installed on the front of the machining table. A movable protective box is symmetrically arranged on the machining table, and a three-jaw chuck is rotatably connected to the protective box. A tapered block is fixedly installed on the three-jaw chuck. A positioning frame is fixedly installed on the machining table, and a second cylinder is installed on the positioning frame. A material unloading frame is fixedly installed at the telescopic end of the second cylinder. A fixed platform is located at the upper end of the machining table, directly opposite the positioning frame. A clamping seat connected to the synchronous plate is inserted into the assembly block of the anti-slip arc plate through an assembly groove. An internal hexagonal screw locks the anti-slip arc plate, whose toothed groove and rubber sleeve increase friction to prevent steel pipe slippage. Ultimately, through the coordinated operation of all components, precise positioning, multi-specification adaptation, and stable machining of the stepped surfaces of steel pipe inner holes are achieved, ensuring machining accuracy and efficiency and meeting stringent machining requirements.

Description

Technical Field

[0001] This application relates to the field of steel pipe processing positioning technology, specifically a steel pipe inner hole step surface processing depth positioning device. Background Technology

[0002] In the field of modern mechanical manufacturing and processing, the machining accuracy and efficiency of steel pipe inner bores have always been important technical challenges in the production process. Especially in some high-precision fields, such as petroleum, chemical, and aerospace industries, the machining quality of steel pipe inner bores directly affects the performance and service life of products. Steel pipe inner bore machining usually involves multiple aspects such as the machining depth, dimensional accuracy, and surface quality. In particular, the depth control of stepped surface machining is one of the technical difficulties.

[0003] Currently, most steel pipe internal hole machining systems use fixtures customized for different specifications of steel pipes. These fixtures are usually specially designed and manufactured to match steel pipes of specific sizes and provide corresponding clamping force and stability. Although this method can ensure the positioning accuracy during the steel pipe machining process, in actual production, when faced with steel pipes of different specifications, operators need to frequently change fixtures. The disassembly and installation process is time-consuming and inconvenient. Especially under high-precision machining requirements, the accumulation of errors during disassembly and installation may have a negative impact on the machining quality.

[0004] Therefore, this application provides a device for positioning the machining depth of the inner bore step surface of a steel pipe to solve the above problems. Utility Model Content

[0005] This application provides a positioning device for machining depth of the inner bore stepped surface of a steel pipe, which aims to solve the problem mentioned in the background art that when dealing with steel pipes of different specifications, operators need to frequently change clamps, and the disassembly and installation process is time-consuming and inconvenient.

[0006] To achieve the above objectives, this application provides the following technical solution: a positioning device for machining depth of the inner bore stepped surface of a steel pipe, comprising a machining table and a control panel fixedly installed on the front of the machining table. A movable protective box is symmetrically arranged on the machining table. A three-jaw chuck is rotatably connected to the protective box. A tapered block is fixedly installed on the three-jaw chuck. A positioning frame is fixedly installed on the machining table. A second cylinder is arranged on the positioning frame. A material unloading frame is fixedly installed at the telescopic end of the second cylinder. A fixed platform is arranged on the upper end of the machining table, directly opposite the positioning frame. A first cylinder is installed on the fixed platform. A positioning mechanism is arranged opposite to the telescopic end of the first cylinder on the positioning frame.

[0007] The telescopic end of the first cylinder is fixedly mounted with a mounting base;

[0008] The positioning mechanism includes positioning plates fixedly installed on a fixed base and a positioning frame. The two positioning plates are distributed opposite each other and horizontally aligned. The positioning plates are symmetrically provided with movable slots. Synchronizing plates are symmetrically arranged on the side of the positioning plates closest to the steel pipe. Clamping seats for positioning the steel pipe are connected to the synchronous plates. Movable blocks that are slidably connected to the movable slots are symmetrically installed on the side of the synchronous plates away from the clamping seats. Through the adjustable design, it can meet the clamping of steel pipes of different specifications without the need to frequently change the corresponding specifications of the clamps, thereby improving processing efficiency.

[0009] Preferably, a threaded shaft for threaded engagement with the movable block is rotatably connected to a movable groove at one end of the positioning plate, and a limiting rod for interlocking with the corresponding movable block is fixedly installed on a movable groove at the other end of the positioning plate. The upper end of the threaded shaft passes through the positioning plate and is fitted with a torsion wheel. The limiting rod restricts the rotation of the movable block to ensure stable adjustment direction.

[0010] Preferably, the synchronization plate and the movable block are fixedly connected by bolts, the lower end of the clamping seat is provided with an anti-slip arc plate, the clamping seat is provided with a first assembly slot and a second assembly slot, and a first assembly block and a second assembly block corresponding to the first assembly slot and the second assembly slot are fixedly installed on the anti-slip arc plate. The second assembly block is irregularly triangular in shape and plays a role in calibration and installation.

[0011] Preferably, the second assembly block fixedly installed on the anti-slip arc plate is inserted into the second assembly groove, and the second assembly block is provided with a threaded hole, and the clamping seat is provided with an internal hexagon screw for insertion into the threaded hole.

[0012] Preferably, the anti-slip arc plate has equidistant toothed grooves, and the surface of the anti-slip arc plate is fitted with a rubber sleeve.

[0013] This positioning device features a movable block that moves along a threaded shaft and a limiting rod, precisely adjusting the spacing of the synchronous plates to accommodate steel pipes of different diameters. The clamping seat connected to the synchronous plate is inserted into the assembly block of the anti-slip arc plate via an assembly groove. The internal hexagonal screw locks the anti-slip arc plate, and its toothed groove and rubber sleeve increase friction to prevent the steel pipe from slipping. Ultimately, through the coordinated operation of all components, it achieves precise positioning, multi-specification adaptation, and stable processing of the inner hole stepped surface of the steel pipe, ensuring processing accuracy and efficiency and meeting stringent processing requirements. Attached Figure Description

[0014] Figure 1 A schematic diagram of a device for positioning the machining depth of a stepped surface inside a steel pipe.

[0015] Figure 2 This is a structural schematic diagram of the positioning plate;

[0016] Figure 3 This is a schematic diagram of the synchronization board.

[0017] Figure 4 A schematic diagram of the cross-section of the positioning plate;

[0018] Figure 5 This is a schematic diagram of the clamping base.

[0019] Figure 6 This is a schematic diagram of the anti-slip arc plate.

[0020] In the picture:

[0021] 1. Processing table; 11. Control panel; 2. Protective box; 21. Three-jaw chuck; 3. Fixed table; 31. First cylinder; 32. Fixed seat; 4. Positioning frame; 41. Second cylinder; 42. Unloading frame; 5. Positioning mechanism; 51. Positioning plate; 511. Movable groove; 52. Threaded shaft; 53. Limiting rod; 54. Movable block; 55. Synchronizing plate; 551. Clamping seat; 552. First assembly groove; 553. Second assembly groove; 554. Anti-slip arc plate; 555. Second assembly block; 556. First assembly block. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This embodiment provides a device for positioning the machining depth of the stepped surface of the inner hole of a steel pipe, such as... Figure 1-6 As shown, the positioning device includes a processing table 1 and a control panel 11 fixedly installed on the front of the processing table 1. A movable protective box 2 is symmetrically arranged on the processing table 1. A three-jaw chuck 21 is rotatably connected to the protective box 2. A tapered block is fixedly installed on the three-jaw chuck 21. A positioning frame 4 is fixedly installed on the processing table 1. A second cylinder 41 is arranged on the positioning frame 4. A feeding frame 42 is fixedly installed at the telescopic end of the second cylinder 41. A fixed platform 3 is arranged on the upper end of the processing table 1, directly opposite the positioning frame 4. A first cylinder 31 is installed on the fixed platform 3. A positioning mechanism 5 is arranged opposite to the positioning frame 4 at the telescopic end of the first cylinder 31.

[0024] The telescopic end of the first cylinder 31 is fixedly mounted with a mounting base 32;

[0025] The positioning mechanism 5 includes a positioning plate 51 fixedly installed on the fixed seat 32 and the positioning frame 4. The two positioning plates 51 are distributed oppositely and horizontally aligned. Activity slots 511 are symmetrically formed on the positioning plate 51. On the side of the positioning plate 51 close to the steel pipe, synchronous plates 55 are symmetrically arranged. A clamping seat 551 for positioning the steel pipe is connected to the synchronous plate 55. On the side of the synchronous plate 55 far from the clamping seat 551, movable blocks 54 slidably connected to the activity slots 511 are symmetrically installed.

[0026] Specifically, the processing table 1 serves as the basic support, the protection box 2 can be moved and adjusted in position. The three-jaw chuck 21 cooperates with the taper block to clamp the steel pipe. The motor in the protection box 2 drives the three-jaw chuck 21 to rotate, so as to realize the stepped surface grooving processing of the inner wall of the steel pipe. The positioning frame 4 drives the blanking frame 42 through the second cylinder 41, and the first cylinder 31 of the fixed table 3 pushes the fixed seat 32, cooperating with the positioning mechanism 5 of the positioning frame 4, to realize the positioning of the steel pipe and the control of the processing depth. The positioning plate 51 is fixed on the fixed seat 32 and the positioning frame 4. The synchronous plate 55 slides along the activity slot 511 of the positioning plate 51 through the movable block 54, and the clamping seat 551 accurately positions the steel pipe.

[0027] A threaded shaft rod 52 for threaded insertion with the movable block 54 is rotatably connected to the activity slot 511 at one end of the positioning plate 51. A limiting rod 53 for inserting through the corresponding movable block 54 is fixedly installed on the activity slot 511 at the other end of the positioning plate 51. The upper end of the threaded shaft rod 52 penetrates through the positioning plate 51 and is installed with a torsion wheel.

[0028] More specifically, the torsion wheel drives the threaded shaft rod 52 to rotate, and the movable block 54 moves along the threaded shaft rod 52 to realize the spacing adjustment of the synchronous plate 55, adapting to steel pipes with different diameters. The limiting rod 53 restricts the rotation of the movable block 54 to ensure the stability of the adjustment direction.

[0029] The synchronous plate 55 and the movable block 54 are fixedly connected by bolts. An anti-slip arc plate 554 is arranged at the lower end of the clamping seat 551. A first assembly groove 552 and a second assembly groove 553 are formed on the clamping seat 551. First assembly blocks 556 and second assembly blocks 555 corresponding to the first assembly groove 552 and the second assembly groove 553 are fixedly installed on the anti-slip arc plate 554.

[0030] Furthermore, the synchronous plate 55 and the movable block 54 are bolted, which is convenient for later disassembly and assembly. The first assembly groove 552 and the second assembly groove 553 of the clamping seat 551 are inserted with the two assembly blocks of the anti-slip arc plate 554, realizing "one plate adapting to multiple pipe diameters". The anti-slip arc plate 554 is replaced to adapt to different steel pipes. The first assembly block 556 is in the shape of a Chinese character "tu", and the second assembly block 555 is in the shape of an irregular triangle. The anti-slip arc plate 554 can be replaced independently. Compared with the traditional overall replacement, the efficiency is higher.

[0031] The second assembly block 555, which is fixedly installed on the anti-slip arc plate 554, is inserted into the second assembly groove 553, and the second assembly block 555 has a threaded hole. The clamping seat 551 is provided with an internal hexagon screw for insertion into the threaded hole.

[0032] It should be noted that the second assembly block 555 is inserted into the second assembly slot 553, and the internal hexagonal screw locks the anti-slip arc plate 554 to prevent slippage during processing. The rubber sleeve and the toothed groove increase the friction.

[0033] The anti-slip arc plate 554 has equidistant toothed grooves, and the surface of the anti-slip arc plate 554 is fitted with a rubber sleeve.

[0034] It is worth mentioning that the toothed grooves and rubber sleeve of the anti-slip arc plate 554 doubly increase friction to prevent the steel pipe from sliding, while the rubber sleeve buffers processing vibrations and reduces damage to the steel pipe.

[0035] In use, when the steel pipe inner hole step surface machining depth positioning device is working, the machining table 1 serves as the base, the protective box 2 is movable and clamps the steel pipe through the three-jaw chuck 21 and the tapered block, the positioning frame 4 and the second cylinder 41 and the first cylinder 31 on the fixed table 3 work together to drive the positioning mechanism 5, the two positioning mechanisms 5 are distributed opposite each other, the positioning plate 51 is fixed on the fixed base 32 and the positioning frame 4, the synchronous plate 55 slides along the movable groove 511 of the positioning plate 51 with the help of the movable block 54, and the rotating torsion wheel drives the threaded shaft 52, so that the movable plate 55 slides along the movable groove 511 of the positioning plate 51. The moving block 54 moves along the threaded shaft 52 and the limiting rod 53, precisely adjusting the spacing of the synchronous plate 55 to adapt to steel pipes of different diameters. The clamping seat 551 connected to the synchronous plate 55 is inserted into the assembly block of the anti-slip arc plate 554 through the assembly groove. The internal hexagonal screw locks the anti-slip arc plate 554. Its toothed groove and rubber sleeve increase the friction to prevent the steel pipe from slipping. Finally, through the cooperation of various components, the precise positioning, multi-specification adaptation and stable processing of the inner hole step surface of the steel pipe are achieved, ensuring processing accuracy and efficiency and meeting stringent processing requirements.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A steel pipe inner hole step surface machining depth positioning device, comprising a machining table (1) and a control panel (11) fixedly installed on the front of the machining table (1), wherein a movable protective box (2) is symmetrically arranged on the machining table (1), a three-jaw chuck (21) is rotatably connected to the protective box (2), a tapered block is fixedly installed on the three-jaw chuck (21), a positioning frame (4) is fixedly installed on the machining table (1), a second cylinder (41) is arranged on the positioning frame (4), a material unloading frame (42) is fixedly installed at the telescopic end of the second cylinder (41), a fixed platform (3) is arranged on the upper end of the machining table (1) directly opposite the positioning frame (4), a first cylinder (31) is installed on the fixed platform (3), and a positioning mechanism (5) is arranged opposite to the positioning frame (4) at the telescopic end of the first cylinder (31); Its features are: The telescopic end of the first cylinder (31) is fixedly mounted with a fixed seat (32); The positioning mechanism (5) includes a positioning plate (51) fixedly installed on a fixed base (32) and a positioning frame (4). The two positioning plates (51) are distributed opposite each other and horizontally aligned. The positioning plates (51) are symmetrically provided with movable grooves (511). A synchronous plate (55) is symmetrically provided on the side of the positioning plate (51) close to the steel pipe. A clamping seat (551) for positioning the steel pipe is connected to the synchronous plate (55). A movable block (54) that is slidably connected to the movable groove (511) is symmetrically installed on the side of the synchronous plate (55) away from the clamping seat (551).

2. The steel pipe bore step face machining depth positioning device according to claim 1, characterized by: A threaded shaft (52) for threaded insertion into the movable block (54) is rotatably connected to the movable groove (511) at one end of the positioning plate (51). A limiting rod (53) for inserting into the corresponding movable block (54) is fixedly installed on the movable groove (511) at the other end of the positioning plate (51). The upper end of the threaded shaft (52) passes through the positioning plate (51) and is equipped with a torsion wheel.

3. The steel tube bore step face machining depth positioning device according to claim 2, characterized by: The synchronization plate (55) and the movable block (54) are fixedly connected by bolts. The lower end of the clamping seat (551) is provided with an anti-slip arc plate (554). The clamping seat (551) is provided with a first assembly groove (552) and a second assembly groove (553). The anti-slip arc plate (554) is fixedly installed with a first assembly block (556) and a second assembly block (555) corresponding to the first assembly groove (552) and the second assembly groove (553).

4. The steel tube bore step face machining depth positioning device according to claim 3, characterized by: The second assembly block (555) fixedly installed on the anti-slip arc plate (554) is inserted into the second assembly groove (553), and the second assembly block (555) is provided with a threaded hole. The clamping seat (551) is provided with an internal hexagon screw for insertion into the threaded hole.

5. The steel tube bore step face machining depth positioning device according to claim 4, characterized by: The anti-slip arc plate (554) has equidistant toothed grooves, and the surface of the anti-slip arc plate (554) is fitted with a rubber sleeve.

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