Steel pipe clamping and cutting machine

Abstract

The utility model discloses a steel pipe clamping and cutting machine, relates to the technical field of steel pipe machining, and mainly aims to improve the efficiency of cutting large-diameter steel pipes. According to the main technical scheme, the steel pipe clamping and cutting machine comprises a bearing seat, a center shaft on the lower end face of the bearing seat is rotationally connected to a base, the bearing seat is provided with an axial hole channel, a plurality of radial guide grooves are evenly distributed in the upper end face of the bearing seat, a driving shaft is arranged in the bearing seat in the radial direction of the bearing seat, and a center transmission shaft is rotationally arranged in the axial hole channel. One end of the driving shaft penetrates through the shaft side face of the bearing seat, the other end of the driving shaft penetrates through the inner side face of the axial hole channel and is connected to the lower end of the center transmission shaft through a first bevel gear set, each lead screw is coaxially arranged in one radial guide groove, and each sliding block clamping jaw is in threaded connection with one lead screw. The upper end of the central transmission shaft is connected to a plurality of screw rods through a second bevel gear set; the cutting mechanism is connected to the base through a support.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a steel pipe clamping and cutting machine. Background Art

[0002] Steel pipes are tubular steel materials mainly used for load-bearing. Sometimes they are also used as water pipes. Steel pipes are often mass-produced with fixed specifications and the length of the steel pipes produced is consistent. Therefore, when using them, they need to be cut according to needs to cut to the appropriate length.

[0003] When cutting steel pipes, existing cutting equipment is mainly responsible for cutting the steel pipes, especially when cutting large-diameter steel pipes into steel rings. It is not convenient to perform flat cutting on large-diameter steel pipes, the operation is inconvenient and errors in the cutting position are prone to occur. A device is needed to clamp the steel pipe when cutting. Utility Model Content

[0004] In view of this, the utility model provides a steel pipe clamping and cutting machine, the main purpose of which is to improve the efficiency of cutting large-diameter steel pipes.

[0005] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0006] The utility model provides a steel pipe clamping and cutting machine, which comprises: a base, a clamping part and a cutting mechanism;

[0007] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The tooth on the attachment piece is meshed with tooth on upper sprocket.

[0008] The cutting mechanism is connected to the base via a bracket and is used for horizontally sawing steel pipes.

[0009] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0010] Optionally, it also includes a positioning rod, the middle part of which is rotatably connected to the base, and a plurality of positioning holes are evenly distributed on the circumference of the axial side surface of the support seat. A spring is provided on the lower side of one end of the positioning rod to drive the other end of the positioning rod to be inserted into one of the positioning holes.

[0011] Optionally, one end surface of the drive shaft is provided with an inner hexagonal hole.

[0012] Optionally, the bracket includes a vertical guide rail, a threaded rod and a sliding block, the lower end of the vertical guide rail is fixedly connected to the base, the threaded rod is rotatably set in the vertical guide rail, the threaded rod is threadedly connected to the sliding block, and is used to drive the sliding block to move up and down along the vertical guide rail, and the cutting mechanism is rotatably connected to the sliding block.

[0013] Optionally, the other end of the positioning rod is connected to the arc-shaped rod, and the positioning hole is consistent with the arc-shaped rod.

[0014] Optionally, a turntable bearing is further included, and the turntable bearing is arranged between the bearing seat and the base.

[0015] Optionally, the central axis of the lower end surface of the bearing seat is installed in the central hole of the base through a ball bearing.

[0016] Optionally, the number of the screw rods is three, the second bevel gear set includes a driving bevel gear and three driven bevel gears, the driving bevel gear is fixedly connected to the upper end of the central transmission shaft, and each of the driven bevel gears is fixedly connected to one of the screw rods.

[0017] By means of the above technical solution, the present invention has at least the following advantages:

[0018] When cutting large-diameter steel pipes, first hoist the large-diameter steel pipe to the upper end surface of the bearing seat, rotate one end of the drive shaft, and the drive shaft drives the central transmission shaft to rotate through the first bevel gear set. The central transmission shaft drives multiple screws to rotate through the second bevel gear set. The screws drive multiple slider clamping claws to synchronously clamp the lower end side of the steel pipe, thereby ensuring that the steel pipe and the bearing seat are coaxial;

[0019] On this basis, the cutting mechanism first cuts the radial cross-section of a certain position of the steel pipe that the saw blade can reach. When the radial cross-section at that position is cut, the bearing seat is rotated, and the bearing seat drives the steel pipe to rotate. The saw blade of the cutting mechanism then cuts the radial cross-section of the next position of the steel pipe until the complete cutting of the radial cross-section of the steel pipe is completed.

[0020] When the cutting is completed, the multiple slider clamping claws are moved synchronously in the opposite direction, and the large-diameter steel pipe is lifted off the bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A schematic structural diagram of a steel pipe clamping and cutting machine provided in an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 The view from AA in the middle.

[0023] The figure marks in the drawings of the specification include: base 1, bearing seat 2, central axis 3, axial channel 4, radial guide groove 5, drive shaft 6, central transmission shaft 7, screw rod 8, slider clamping claw 9, steel pipe 10, cutting mechanism 11, positioning rod 12, positioning hole 13, spring 14, inner hexagonal hole 15, vertical guide rail 16, threaded rod 17, sliding block 18, drive motor 19, arc rod 20, turntable bearing 21, handle 22, active bevel gear 23, and driven bevel gear 24. DETAILED DESCRIPTION

[0024] To further illustrate the technical means and effects employed by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed description of the specific implementation methods, structures, features, and effects of this utility model application. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a steel pipe clamping and cutting machine, which includes: a base 1, a clamping portion and a cutting mechanism 11;

[0027] The clamping portion includes a bearing seat 2 and a clamping mechanism. The central axis 3 of the lower end surface of the bearing seat 2 is rotatably connected to the base 1. The bearing seat 2 is provided with an axial channel 4. The upper end surface of the bearing seat 2 is evenly distributed with a plurality of radial guide grooves 5. The clamping mechanism includes a drive shaft 6, a central transmission shaft 7, a plurality of screw rods 8 and a plurality of slider clamping claws 9. The drive shaft 6 is arranged inside the bearing seat 2 along the radial direction of the bearing seat 2. The central transmission shaft 7 is rotatably arranged in the axial channel 4. One end of the drive shaft 6 passes through the axis of the bearing seat 2. On the side, the other end of the drive shaft 6 passes through the inner side of the axial channel 4 and is connected to the lower end of the central transmission shaft 7 through a first bevel gear set. Each of the screw rods 8 is coaxially arranged in one of the radial guide grooves 5. Each of the slider clamping claws 9 is threadedly connected to one of the screw rods 8. The upper end of the central transmission shaft 7 is connected to multiple screw rods 8 through a second bevel gear set, which is used to drive multiple slider clamping claws 9 to slide synchronously along the radial guide groove 5, so that multiple slider clamping claws 9 synchronously clamp the steel pipe 10;

[0028] The cutting mechanism 11 is connected to the base 1 via a bracket and is used for horizontally sawing the steel pipe 10 .

[0029] The working process of a steel pipe clamping and cutting machine is as follows:

[0030] When cutting the large-diameter steel pipe 10, first hoist the large-diameter steel pipe 10 to the upper end surface of the bearing seat 2, rotate one end of the drive shaft 6, the drive shaft 6 drives the central transmission shaft 7 to rotate through the first bevel gear set, and the central transmission shaft 7 drives multiple screws 8 to rotate through the second bevel gear set. The screws 8 drive multiple slider clamping claws 9 to synchronously clamp the lower end side of the steel pipe 10, thereby ensuring that the steel pipe 10 and the bearing seat 2 are coaxial;

[0031] On this basis, the cutting mechanism 11 first saws the radial cross-section of a certain position of the steel pipe 10 that the saw blade can reach. When the radial cross-section at that position is cut, the supporting seat 2 is rotated, and the supporting seat 2 drives the steel pipe 10 to rotate. The saw blade of the cutting mechanism 11 then cuts the radial cross-section of the next position of the steel pipe 10 until the complete cutting of the radial cross-section of the steel pipe 10 is completed.

[0032] When the cutting is completed, the multiple slider clamping claws 9 are synchronously moved in the opposite direction, and the large-diameter steel pipe 10 is lifted off the supporting seat 2.

[0033] Specifically, the axial channel 4 is along the central axis of the bearing seat 2, and the central transmission shaft 7 is installed in the axial channel 4 through a bearing;

[0034] Specifically, the bearing seat 2 is provided with a radial channel, and the drive shaft 6 is installed in the radial channel through a bearing;

[0035] In a specific embodiment, it also includes a positioning rod 12, the middle part of which is rotatably connected to the base 1, and a plurality of positioning holes 13 are evenly distributed on the circumference of the axial side surface of the supporting seat 2. A spring 14 is provided on the lower side of one end of the positioning rod 12 to drive the other end of the positioning rod 12 to be inserted into one of the positioning holes 13.

[0036] In this embodiment, specifically, when the saw blade of the cutting mechanism 11 cuts the radial cross-section of a certain position of the steel pipe 10, the other end of the positioning rod 12 is inserted into one of the positioning holes 13 to prevent the supporting seat 2 from rotating, thereby ensuring the cutting position stability of the steel pipe 10; when the cutting position of the steel pipe 10 needs to be changed, the operator steps on one end of the positioning rod 12 to overcome the elastic force of the spring 14, and drives the other end of the positioning rod 12 to rotate away from the positioning hole 13, making it convenient for the operator to drive the supporting seat 2 to rotate by hand.

[0037] In a specific embodiment, one end surface of the driving shaft 6 is provided with an inner hexagonal hole 15 .

[0038] In this embodiment, specifically, one end of the driving shaft 6 is located on the axial side of the bearing seat 2 , which is convenient for the operator to rotate the driving shaft 6 using a hexagonal wrench.

[0039] In a specific embodiment, the bracket includes a vertical guide rail 16, a threaded rod 17 and a sliding block 18. The lower end of the vertical guide rail 16 is fixedly connected to the base 1, and the threaded rod 17 is rotatably set in the vertical guide rail 16. The threaded rod 17 is threadedly connected to the sliding block 18 for driving the sliding block 18 to move up and down along the vertical guide rail 16. The cutting mechanism 11 is rotatably connected to the sliding block 18.

[0040] In this embodiment, specifically, it also includes a drive motor 19, the output shaft of the drive motor 19 is coaxially connected to the threaded rod 17, and is used to drive the threaded rod 17 to rotate. The cutting mechanism 11 is rotatably connected to the slider, so that the operator can push the cutting mechanism 11 to rotate horizontally relative to the slider, thereby driving the saw blade of the cutting mechanism 11 to radially cut the steel pipe 10.

[0041] In a specific embodiment, the other end of the positioning rod 12 is connected to the arc-shaped rod 20 , and the positioning hole 13 is consistent with the arc-shaped rod 20 .

[0042] In this embodiment, specifically, the positioning rod 12 is L-shaped, including a horizontal section and a vertical section. The upper end of the vertical section is fixedly connected to the arc rod 20, and the connection position of the horizontal section and the vertical section is connected to the base 1 through a pivot. The lower side of the horizontal section is connected to the spring 14, which is used to drive the arc rod 20 to insert into one of the positioning holes 13. The arc rod 20 and the positioning hole 13 are located on the same circumference with the pivot as the center, so that the arc rod 20 can be accurately inserted into the positioning hole 13.

[0043] In a specific embodiment, a turntable bearing 21 is further included, and the turntable bearing 21 is arranged between the bearing seat 2 and the base 1.

[0044] In this embodiment, specifically, the turntable bearing 21 is provided between the lower end surface of the bearing seat 2 and the upper end surface of the base 1 to reduce the friction of the rotation of the bearing seat 2;

[0045] Specifically, the peripheral side surface of the support base 2 is fixedly connected to the handle 22 , so that the operator can hold the handle 22 to drive the support base 2 to rotate.

[0046] In a specific embodiment, the central axis 3 of the lower end surface of the bearing seat 2 is installed in the central hole of the base 1 through a ball bearing.

[0047] In this embodiment, specifically, the central axis 3 of the lower end surface of the bearing seat 2 is installed in the central hole of the base 1 through a ball bearing, thereby improving the stability of the rotation of the bearing seat 2.

[0048] In a specific embodiment, the number of the screw rods 8 is three, and the second bevel gear set includes a driving bevel gear 23 and three driven bevel gears 24. The driving bevel gear 23 is fixedly connected to the upper end of the central transmission shaft 7, and each of the driven bevel gears 24 is fixedly connected to one of the screw rods 8.

[0049] In this embodiment, specifically, the number of radial guide grooves 5 is also three, each screw rod 8 is correspondingly arranged in one of the radial guide grooves 5, the driving bevel gear 23 is connected to the upper end of the center transmission shaft 7 with a flat key, and the driven bevel gear 24 is connected to the end of the screw rod 8 with a flat key. The driving bevel gear 23 engages the driven bevel gear 24, thereby achieving the purpose of the center transmission shaft 7 driving the three screw rods 8 to rotate.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A steel pipe clamping and cutting machine, characterized in that: include: base; The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The tooth on the attachment piece is meshed with tooth on upper sprocket. The cutting mechanism is connected to the base through a bracket and is used for horizontally sawing the steel pipe.

2. The steel pipe clamping and cutting machine according to claim 1, characterized in that: It also includes a positioning rod, the middle part of which is rotatably connected to the base, and a plurality of positioning holes are evenly distributed on the circumference of the axial side surface of the bearing seat. A spring is provided on the lower side of one end of the positioning rod to drive the other end of the positioning rod to be inserted into one of the positioning holes.

3. The steel pipe clamping and cutting machine according to claim 1, characterized in that: One end surface of the driving shaft is provided with an inner hexagonal hole.

4. The steel pipe clamping and cutting machine according to claim 1, characterized in that: The bracket includes a vertical guide rail, a threaded rod and a sliding block. The lower end of the vertical guide rail is fixedly connected to the base. The threaded rod is rotatably set in the vertical guide rail. The threaded rod is threadedly connected to the sliding block for driving the sliding block to move up and down along the vertical guide rail. The cutting mechanism is rotatably connected to the sliding block.

5. The steel pipe clamping and cutting machine according to claim 2, characterized in that: The other end of the positioning rod is connected to the arc rod, and the positioning hole is consistent with the arc rod.

6. The steel pipe clamping and cutting machine according to any one of claims 1 to 5, characterized in that: It also includes a turntable bearing, which is arranged between the bearing seat and the base.

7. The steel pipe clamping and cutting machine according to claim 6, characterized in that: The central axis of the lower end surface of the bearing seat is installed in the central hole of the base through a ball bearing.

8. The steel pipe clamping and cutting machine according to any one of claims 1 to 5, characterized in that: There are three screw rods, and the second bevel gear set includes a driving bevel gear and three driven bevel gears. The driving bevel gear is fixedly connected to the upper end of the central transmission shaft, and each of the driven bevel gears is fixedly connected to one of the screw rods.

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