Metal pipe threading machine

Abstract

The utility model discloses a metal pipe threading machine, which relates to the technical field of metal pipe processing devices and comprises a plurality of supporting legs. The upper ends of the supporting legs are jointly and fixedly connected with a supporting plate, one side of the upper portion of the supporting plate is slidably connected with a first limiting structure, the first limiting structure comprises a fixing block, one side of the fixing block is fixedly connected with a first guide rod, and the middle of the fixing block is rotationally connected with a first threaded rod. Tubes of different sizes can be positioned and limited through the positioning structure, the positions of the tubes can be limited through the second rubber limiting block, and therefore under the cooperation of the positioning structure and the second rubber limiting block, the positions of the long tubes can be limited, the circle centers of the long tubes can be positioned; and then after the device completes threading cutting of the pipe, a first threaded rod can be operated to drive a movable block to move, so that the pipe can be driven to move, and the situation that the circle center of the pipe needs to be positioned when the pipe is machined again can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipe processing devices, and particularly relates to a threading machine for metal pipes. Background Art

[0002] In the field of metal pipe processing, especially when threading standard pipes, the selection and use of fixtures are crucial. However, for the processing of longer pipes, some significant problems have emerged in the traditional fixture design and usage process.

[0003] When the traditional fixture processes the pipe after threading and cutting, it usually needs to remove the pipe from the fixture, and then re-clamp and position the pipe according to the length required for threading. This operation method is not only time-consuming, but also greatly increases the labor intensity of the staff. During the repeated loading, unloading and positioning process, not only the work efficiency is seriously affected, but also the staff is prone to fatigue due to repetitive work, and even may affect the safety and accuracy of the operation.

[0004] Chinese Patent Document CN206153701U discloses a clamping device for metal pipes of a threading machine, which includes a frame body, a first clamping block, a second clamping block, a transmission device and a clamping handwheel. Through grooves are formed in the middle of the upper beam and the lower beam of the frame body. The first clamping block and the second clamping block are symmetrically arranged between the upper cross beam and the lower cross beam, and symmetrical notches are provided on the first clamping block and the second clamping block. Both the first clamping block and the second clamping block can move along the long direction of the through groove; however, there are still the following defects in the implementation process:

[0005] Although the device in the above document can complete the clamping of the metal pipe only by pulling the handle, the process is fast, convenient and labor-saving. However, when the device in the above document processes longer pipes, it often needs to remove the pipe after threading and cutting from the device, and then re-clamp and position the pipe according to the processing length, which not only results in low processing efficiency, but also a large amount of repeated clamping and positioning work will increase the work intensity of the staff, thus bringing a sense of fatigue to the staff and affecting the processing efficiency of the workpiece. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a threading machine for metal pipes to solve the problems raised in the above background art.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A metal pipe threading machine includes several support legs; the upper ends of several support legs are fixedly connected together with a support plate. On one side of the upper part of the support plate, there is a first limiting structure slidably connected. The first limiting structure includes a fixed block. On one side of the fixed block, there is a first guide rod fixedly connected. In the middle of the fixed block, there is a first threaded rod rotatably connected. On the outer surface of the first threaded rod, there is a moving block threadedly connected. On the upper part of the moving block, there is a positioning structure for positioning the pipe. The moving block is slidably connected with the first guide rod. In the middle of the upper end of the support plate, there is a second rubber limiting block fixedly connected. On the side of the upper end of the support plate far from the first limiting structure, there are clamping blocks symmetrically slidably connected. On one side of the clamping block, there is a driving structure for driving the clamping block to move.

[0009] A further improvement of the technical solution of the present utility model lies in that: on one side of the upper end of the support plate, there is a second chute opened. The inner cavity of the second chute is fixedly connected with the fixed block, and the lower part of the moving block is slidably connected with the inner cavity of the second chute. On the side of the upper end of the support plate close to the second chute, there is a scale, and on the side of the support plate far from the second chute, there is a first chute opened.

[0010] Adopting the above technical solution, in this solution, by opening the second chute, the moving position of the moving block can be limited by the second chute. By opening the first chute, the moving position of the clamping block can be limited. By providing the scale, it is convenient for the staff to directly measure the length of the pipe and accurately control the moving distance of the pipe.

[0011] A further improvement of the technical solution of the present utility model lies in that: on the side of the moving block close to the scale, there is an indicating rod fixedly connected, and the indicating rod is used in cooperation with the scale.

[0012] Adopting the above technical solution, in this solution, by the cooperation of the indicating rod and the scale, it is convenient for the staff to directly read the moving distance of the pipe, thereby improving the accuracy during the processing of the pipe.

[0013] A further improvement of the technical solution of the present utility model lies in that: the positioning structure includes a second threaded rod, the second threaded rod is rotatably connected with the moving block. On the outer surface of the second threaded rod, there is a first slider threadedly connected. On one side of the second threaded rod, there is a center block rotatably connected. The first slider and the center block are provided with several positioning frames in a common circular array. On the side of the center block close to the moving block, there is a second guide rod fixedly connected. The second guide rod is slidably connected with the first slider, and on the side of the second guide rod close to the moving block, it is fixedly connected with the moving block.

[0014] Adopting the above technical solution, in this solution, through the cooperation of the second threaded rod and the first slider, the second threaded rod can drive the first slider to move, and then drive the positioning frames to contract and expand. Thus, through the cooperation of several positioning frames, pipes of different sizes can be positioned and limited.

[0015] A further improvement of the technical solution of the present utility model lies in that the lower part of the clamping block is set as a T shape, and the lower part of the outer surface of the clamping block is slidably connected to the inner cavity of the first chute.

[0016] With the above technical solution, in this solution, since the lower part of the clamping block is T-shaped, it can effectively reduce friction and wear, improve the service life of the mechanical device, and the T-shaped structure is simple and easy to install, which can reduce the difficulty of installation and maintenance.

[0017] A further improvement of the technical solution of the present utility model lies in that the driving structure includes a housing, the lower end of the housing is fixedly connected to the upper end of the support plate, a gear is rotatably connected to the inner cavity of the housing, racks are symmetrically meshed with the outer surface of the gear, a motor is fixedly connected to one side of the housing, and the output end of the motor penetrates through the outer surface of the housing and extends into the inner cavity of the housing, and the output end of the housing is fixedly connected to the gear.

[0018] With the above technical solution, in this solution, the output end of the motor drives the gear to rotate, so that the gear can perform a meshing movement on the two racks, and thus the two racks can be driven to move.

[0019] A further improvement of the technical solution of the present utility model lies in that one side of the rack close to the clamping block is fixedly connected to the clamping block.

[0020] With the above technical solution, in this solution, since the rack is fixedly connected to the clamping block, when the two racks move, the two clamping blocks will be driven to move, so that the two clamping blocks can be driven to fix pipes of different sizes.

[0021] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0022] 1. The present utility model provides a metal pipe threading machine. Through the positioning structure, pipes of different sizes can be positioned and limited. The position of the pipe can be limited by the second rubber limiting block. Thus, with the cooperation of the positioning structure and the second rubber limiting block, the position of a longer pipe can be limited and the center of the circle can be positioned. Then, after the device finishes threading and cutting the pipe, the moving block can be driven to move by operating the first threaded rod, so that the pipe can be driven to move. Thus, when the pipe needs to be processed again, it is not necessary to position the center of the circle of the pipe, reducing the working intensity of the staff during pipe threading. Through the cooperation of the driving structure and the clamping block, when threading the pipe, the driving structure can be used to drive the clamping block to fix the pipe to prevent the longer pipe from shaking during the processing, thus affecting the threading of the pipe by the device.

[0023] 2. The utility model provides a threading machine for metal pipes. By setting a scale on the upper end face of the support plate and then using the scale in cooperation with the indicating rod, it is convenient for the staff to directly read the moving distance of the pipe, which can not only improve the processing accuracy of the device, but also reduce the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following further describes the present utility model with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0026] Figure 2 It is a schematic diagram of the first limiting structure of the present utility model;

[0027] Figure 3 It is a schematic diagram of the support plate of the present utility model;

[0028] Figure 4 It is a schematic diagram of the center positioning structure of the present utility model;

[0029] Figure 5 It is a schematic diagram of the clamping block of the present utility model;

[0030] Figure 6 It is a schematic diagram of the driving structure of the present utility model;

[0031] In the figure: 1, support legs; 2, support plate; 21, first chute; 22, second chute; 23, scale; 3, first limiting structure; 31, fixed block; 32, moving block; 321, indicating rod; 33, first threaded rod; 34, first guide rod; 35, positioning structure; 351, second threaded rod; 352, first slider; 353, positioning frame; 354, second guide rod; 355, center block; 4, second rubber limiting block; 5, clamping block; 6, driving structure; 61, housing; 62, rack; 63, gear; 64, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes the present utility model in detail with reference to the embodiments:

[0033] Embodiment 1

[0034] As Figures 1-6As shown in the figure, the utility model provides a metal pipe threading machine, which includes several support legs 1; the upper ends of several support legs 1 are fixedly connected with a support plate 2 together. One side of the upper part of the support plate 2 is slidably connected with a first limiting structure 3. The first limiting structure 3 includes a fixed block 31. One side of the fixed block 31 is fixedly connected with a first guide rod 34. The middle part of the fixed block 31 is rotatably connected with a first threaded rod 33. The outer surface of the first threaded rod 33 is threadedly connected with a moving block 32. The upper part of the moving block 32 is provided with a positioning structure 35 for positioning the pipe. The moving block 32 is slidably connected with the first guide rod 34. The middle part of the upper end of the support plate 2 is fixedly connected with a second rubber limiting block 4. The two sides of the upper end of the support plate 2 far away from the first limiting structure 3 are symmetrically and slidably connected with clamping blocks 5. One side of the clamping block 5 is provided with a driving structure 6 for driving the clamping block 5 to move.

[0035] In this embodiment, through the cooperation of the support legs 1 and the support plate 2, the device can be supported and limited. Through the cooperation of the first threaded rod 33 and the moving block 32, the moving block 32 can be driven to move by the first threaded rod 33, so that the positioning structure 35 and the pipe limited by the positioning structure 35 can be driven to move. Thus, it is possible to avoid removing the pipe from the device when the pipe needs to be moved, then adjusting the position of the pipe according to the processing requirements, and then repositioning and clamping the pipe. Through the positioning structure 35, the center of the pipe with different sizes can be positioned and limited. Through the second rubber limiting block 4, the pipe with different sizes can be limited and supported. Through the cooperation of the clamping block 5 and the driving structure 6, the pipe with different sizes can be clamped.

[0036] Embodiment 2

[0037] As Figure 4 shown, on the basis of Embodiment 1, the utility model provides a technical solution: preferably, the positioning structure 35 includes a second threaded rod 351, the second threaded rod 351 is rotatably connected with the moving block 32, the outer surface of the second threaded rod 351 is threadedly connected with a first slider 352, one side of the second threaded rod 351 is rotatably connected with a center block 355. The first slider 352 and the center block 355 are jointly provided with several positioning frames 353 in a circular array. One side of the center block 355 close to the moving block 32 is fixedly connected with a second guide rod 354. The second guide rod 354 is slidably connected with the first slider 352. One side of the second guide rod 354 close to the moving block 32 is fixedly connected with the moving block 32.

[0038] In this embodiment, the pipe is passed through the inner cavity of the second rubber limit block 4. Since the second rubber limit block 4 is made of rubber material, the second rubber limit block 4 has a certain elasticity and can limit the pipe. Then, the inner cavity of the pipe is sleeved on the outer surface of the positioning structure 35. Next, by operating the rotation of the second threaded rod 351, the first slider 352 can be driven to move. Then, with the cooperation of the first slider 352 and the central block 355, a number of positioning frames 353 can be driven to expand, so that the inner cavity of the pipe can be fixed by the positioning frames 353, and then the center of the pipe can be positioned by the positioning structure 35.

[0039] Embodiment 3

[0040] As Figure 5 、 Figure 6 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the driving structure 6 includes a housing 61. The lower end of the housing 61 is fixedly connected to the upper end of the support plate 2. A gear 63 is rotatably connected to the inner cavity of the housing 61. The outer surface of the gear 63 is symmetrically meshed with racks 62. One side of the housing 61 is fixedly connected to a motor 64, and the output end of the motor 64 penetrates through the outer surface of the housing 61 and extends into the inner cavity of the housing 61. The output end of the housing 61 is fixedly connected to the gear 63. One side of the rack 62 close to the clamping block 5 is fixedly connected to the clamping block 5. The lower part of the clamping block 5 is T-shaped, and the lower part of the outer surface of the clamping block 5 is slidably connected to the inner cavity of the first chute 21.

[0041] In this embodiment, then, before threading the pipe, by operating the motor 64, the output end of the motor 64 is used to drive the gear 63 to rotate, so that the adjacent racks 62 can be meshed by the gear 63, driving the two racks 62 to move. Thus, the two clamping blocks 5 can be driven to slide in the inner cavity of the first chute 21, so that the pipe can be fixed by the two clamping blocks 5. Then, the staff can thread the pipe through a threading machine. After threading, the staff can cut the pipe. Then, by operating the motor 64 again, the gear 63 is used to drive the adjacent racks 62 to perform a meshing movement, driving the two racks 62 to move, so that the two clamping blocks 5 can be driven to reset, thus releasing the fixation of the pipe.

[0042] Embodiment 4

[0043] As Figure 2 、 Figure 3As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a second chute 22 is provided on one side of the upper end of the support plate 2. The inner cavity of the second chute 22 is fixedly connected to the fixed block 31, and the lower part of the moving block 32 is slidably connected to the inner cavity of the second chute 22. A scale 23 is provided on one side of the upper end of the support plate 2 near the second chute 22. A first chute 21 is provided on the side of the support plate 2 away from the second chute 22. A pointer rod 321 is fixedly connected to one side of the moving block 32 near the scale 23, and the pointer rod 321 is used in cooperation with the scale 23.

[0044] In this embodiment, then the worker can rotate the first threaded rod 33, drive the moving block 32 to slide in the inner cavity of the second chute 22 by means of the first threaded rod 33, so as to drive the positioning structure 35 to move, and then drive the pipe to move together by means of the positioning structure 35. During the movement, through the cooperation of the pointer rod 321 and the scale 23, the moving distance of the pipe can be controlled. Then when the pipe moves to a suitable position, by repeating the above steps, the processing of the whole pipe is completed, so that when processing the pipe, it is not necessary for the worker to continuously perform operations such as clamping, positioning and measuring the pipe, which not only reduces the working burden of the worker, but also improves the processing efficiency and processing accuracy of the device.

[0045] The working principle of the metal pipe threading machine will be specifically described below.

[0046] As Figures 1-6 shown, when threading the pipe, first pass the pipe through the inner cavity of the rubber limiting block II 4. Since the rubber limiting block II 4 is made of rubber material, the rubber limiting block II 4 has a certain elasticity and can limit the pipe. Then, the inner cavity of the pipe is sleeved on the outer surface of the positioning structure 35. Then, by operating the rotation of the second threaded rod 351, the slider I 352 can be driven to move. Then, under the cooperation of the slider I 352 and the center block 355, a plurality of positioning frames 353 can be driven to expand, so as to fix the inner cavity of the pipe by means of the positioning frames 353, and then the center of the pipe can be positioned by means of the positioning structure 35;

[0047] Before threading the pipe, by running the motor 64, the output end of the motor 64 drives the gear 63 to rotate, so that the gear 63 can engage with the adjacent rack 62, driving the two racks 62 to move. Then, the two clamping blocks 5 can be driven to slide in the inner cavity of the first chute 21 by the two racks 62, so that the pipe can be fixed by the two clamping blocks 5. Then, the worker can thread the pipe with a threading machine. After threading, the worker can cut the pipe. Then, by running the motor 64 again, the gear 63 driven by the motor 64 engages with the adjacent rack 62, driving the two racks 62 to move, so that the two clamping blocks 5 can be driven to reset, thus releasing the fixation of the pipe.

[0048] Then, the worker can rotate the first threaded rod 33 to drive the moving block 32 to slide in the inner cavity of the second chute 22, so that the positioning structure 35 can be driven to move. Then, the pipe can be driven to move together by the positioning structure 35. During the movement, the moving distance of the pipe can be controlled by the cooperation of the indicating rod 321 and the scale 23. Then, when the pipe moves to the appropriate position, by repeating the above steps, the processing of the whole pipe can be completed, reducing the need for the worker to constantly perform operations such as clamping, positioning, and measuring the pipe during processing. This not only reduces the work burden of the worker, but also improves the processing efficiency and accuracy of the device.

[0049] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A metal pipe threading machine, comprising a plurality of support legs (1); characterized in that: The upper ends of the plurality of support legs (1) are commonly fixedly connected to a support plate (2), one side of the upper part of the support plate (2) is slidably connected to a first limiting structure (3), the first limiting structure (3) comprises a fixed block (31), one side of the fixed block (31) is fixedly connected to a guide rod (34), the middle part of the fixed block (31) is rotatably connected to a threaded rod (33), the outer surface of the threaded rod (33) is threadedly connected to a moving block (32), and the upper part of the moving block (32) is provided with A positioning structure (35) is provided, and the positioning structure (35) is used to position the pipe. The moving block (32) is slidably connected to the guide rod 1 (34). A rubber limiting block 2 (4) is fixedly connected to the middle of the upper end of the support plate (2). A clamping block (5) is symmetrically slidably connected to the side of the upper end of the support plate (2) away from the first limiting structure (3). A driving structure (6) is provided on one side of the clamping block (5), and the driving structure (6) is used to drive the clamping block (5) to move.

2. A metal pipe threading machine according to claim 1, characterized in that: A second slide groove (22) is provided on one side of the upper end of the support plate (2); the inner cavity of the second slide groove (22) is fixedly connected to the fixed block (31); the inner cavity of the second slide groove (22) is slidably connected to the lower part of the moving block (32); a scale (23) is provided on the side of the upper end of the support plate (2) close to the second slide groove (22); and a first slide groove (21) is provided on the side of the support plate (2) away from the second slide groove (22).

3. A metal pipe threading machine according to claim 2, characterized in that: A side of the moving block (32) close to the scale (23) is fixedly connected with an indicator rod (321), and the indicator rod (321) is used in conjunction with the scale (23).

4. A metal pipe threading machine according to claim 3, characterized in that: The positioning structure (35) comprises a second threaded rod (351), wherein the second threaded rod (351) is rotatably connected to the moving block (32), a first slider (352) is threadedly connected to the outer surface of the second threaded rod (351), a center block (355) is rotatably connected to one side of the second threaded rod (351), a plurality of positioning frames (353) are arranged in a circular array together with the first slider (352) and the center block (355), a second guide rod (354) is fixedly connected to the side of the center block (355) close to the moving block (32), the second guide rod (354) is slidably connected to the first slider (352), and a second guide rod (354) is fixedly connected to the moving block (32) on the side close to the moving block (32).

5. A metal pipe threading machine according to claim 1, characterized in that: The lower part of the clamping block (5) is arranged in a T-shape, and the lower part of the outer surface of the clamping block (5) is slidably connected with the inner cavity of the slide groove 1 (21).

6. A metal pipe threading machine according to claim 1, characterized in that: The driving structure (6) comprises a shell (61), the lower end of the shell (61) is fixedly connected to the upper end of the support plate (2), the inner cavity of the shell (61) is rotatably connected to a gear (63), the outer surface of the gear (63) is symmetrically meshed with a rack (62), one side of the shell (61) is fixedly connected to a motor (64), and the output end of the motor (64) passes through the outer surface of the shell (61) and extends to the inner cavity of the shell (61), and the output end of the shell (61) is fixedly connected to the gear (63).

7. A metal pipe threading machine according to claim 6, characterized in that: The rack (62) is fixedly connected to the clamping block (5) on one side thereof close to the clamping block (5).

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