Clamping device for steel pipe hobbing

Abstract

The clamping device comprises a cutting workbench, a connecting base is arranged on the cutting workbench, a central rotating shaft is arranged in the connecting base, a connector is arranged on the central rotating shaft, a steel pipe clamping assembly is arranged at one end of the connector, and a steel pipe guiding assembly is arranged at the other end of the connector. The steel pipe hobbing device has the advantages that a steel pipe is clamped through the steel pipe clamping assembly, the steel pipe to be subjected to hobbing can be easily placed in the steel pipe channel, the clamping wheel is rotated through the handle to clamp the steel pipe, and the other end of the steel pipe and the steel pipe guiding assembly are subjected to auxiliary clamping and guiding through the connector; and after the hobbing is completed, the clamping wheel can be easily rotated to take down the clamping part of the steel pipe, and the hobbing efficiency is high and stable.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe production, and specifically relates to a clamping device for steel pipe rotary cutting. Background Technique

[0002] A steel pipe rotary cutting machine is a device used for cutting steel pipes. It usually uses a hob or a cutting blade to cut by rotating the steel pipe and applying pressure. This machine is usually used in the pipeline manufacturing or processing process in industrial production and can cut various diameters and thicknesses of steel efficiently and precisely.

[0003] When cutting steel pipes, especially round steel pipes, it is necessary to clamp them during cutting to prevent shaking during the cutting process, which may cause uneven cut edges. Different from rectangular steel pipes, the surface of round steel pipes is smoother. During rotary cutting, the steel pipe needs to be rotated and contacted with the cutting edge, and then the outer wall of the steel pipe is completely cut to form a cut or a groove. However, the steel pipe is very likely to displace and cause deviation during the cutting process, or it cannot be stably clamped due to rotary cutting rotation, which causes trouble to the rotary cutting work. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that during the production process of steel pipes, different from rectangular steel pipes, the surface of round steel pipes is smoother. During rotary cutting, the steel pipe needs to be rotated and contacted with the cutting edge, and then the outer wall of the steel pipe is completely cut to form a cut or a groove. However, the steel pipe is very likely to displace and cause deviation during the cutting process, or it cannot be stably clamped due to rotary cutting rotation, which causes trouble to the rotary cutting work.

[0006] (2) Technical Solutions

[0007] To solve the above problems, the utility model provides the following technical solutions:

[0008] A clamping device for steel pipe rolling cutting, comprising a cutting workbench, a connecting base is provided on the cutting workbench, a central rotating shaft is provided in the connecting base, a connector is provided on the central rotating shaft, a steel pipe clamping assembly is provided at one end of the connector, a steel pipe guiding assembly is provided at the other end of the connector, a first large gear is provided on the outer surface of the connector, a second large gear is provided on the steel pipe guiding assembly, a synchronous pulley is provided at one end of the central rotating shaft, a first small gear and a second small gear are provided on the shaft body of the central rotating shaft. The steel pipe clamping assembly includes an outer support, an inner support, a clamping wheel and a clamping slider. A limiting wall is provided at the inner wall of the clamping wheel, a limiting slide bar is provided on the inner support, the clamping slider is sleeved on the limiting slide bar, a return spring is provided at one end of the limiting slide bar, one end of the clamping slider is a contact end and the other end is a clamping end. A handle is provided on the outer wall of the clamping wheel. A steel pipe channel is provided in the steel pipe clamping assembly, and the steel pipe channel penetrates through the connector and the steel pipe guiding assembly. The steel pipe guiding assembly includes a guiding outer shell and a guiding sleeve. A motor is provided at the bottom of the cutting workbench, and the central rotating shaft is connected with the motor shaft through a belt.

[0009] Further, bearings are provided in the connecting base, and the central rotating shaft and the connector are connected with the connecting base through the bearings.

[0010] Further, the steel pipe guiding assembly, the steel pipe clamping assembly and the connector are fixedly connected, and the guiding sleeve penetrates through the steel pipe guiding assembly and extends into the interior of the connector.

[0011] Further, the first large gear meshes with the first small gear, and the second large gear meshes with the second small gear.

[0012] Further, the steel pipe clamping assembly is fixedly connected with the connector through the inner support, a bearing is provided on one side of the inner support close to the clamping wheel, and the clamping wheel is connected with the inner support through the bearing.

[0013] Further, side plates are provided on both sides of the clamping slider, through holes are provided on the side plates, the clamping slider is sleeved on the limiting slide bar through the through holes, one end of the return spring is fixedly connected with the side plate of the clamping slider, and the other end of the return spring is fixedly connected with the inner support.

[0014] Further, the limiting wall is arc-shaped, the limiting wall includes a concave part and a convex part, the contact end is an arc-shaped convex block, and anti-slip lines are provided on the inner wall of the clamping end.

[0015] (III) Beneficial effects

[0016] The beneficial effects of the present utility model are as follows:

[0017] The steel pipe is clamped by the steel pipe clamping assembly. The steel pipe to be roll-cut can be easily placed into the steel pipe channel, and the clamping wheel is rotated by the handle to clamp the steel pipe. The other end of the steel pipe is assisted in clamping and guiding through the connector and the steel pipe guiding assembly, so that the roll-cutting process is stable and will not shift. After the roll-cutting is completed, the clamping wheel can be easily rotated to remove the steel pipe clamping part, and the roll-cutting efficiency is high and stable. Brief Description of the Drawings

[0018] Figure 1 is the perspective view of the present utility model;

[0019] Figure 2 The side view of the present utility model;

[0020] Figure 3 is the sectional view taken along line A-A of the present utility model;

[0021] Figure 4 is the schematic diagram of the connection between the central rotating shaft and the connector;

[0022] Figure 5 is the schematic diagram of the structure of the steel pipe clamping assembly;

[0023] Reference numerals in the drawings: 1 - cutting workbench, 2 - connecting base, 3 - central rotating shaft, 4 - connector, 5 - steel pipe clamping assembly, 6 - steel pipe guiding assembly, 7 - first large gear, 8 - second large gear, 9 - steel pipe channel, 10 - motor, 3a - synchronous pulley, 3b - first small gear, 3c - second small gear, 5a - outer support, 5b - inner support, 5c - clamping wheel, 5d - clamping slider, 5e - limiting wall, 5f - limiting slide bar, 5g - return spring, 6a - guiding housing, 6b - guiding sleeve. Detailed Description of the Preferred Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1-5 A clamping device for steel pipe rolling cutting as shown, which includes a cutting workbench 1. A connecting base 2 is provided on the cutting workbench 1. A central rotating shaft 3 is provided in the connecting base 1. A connector 4 is provided on the central rotating shaft 3. One end of the connector 4 is provided with a steel pipe clamping assembly 5, and the other end of the connector 4 is provided with a steel pipe guiding assembly 6. A first large gear 7 is provided on the outer surface of the connector 4. A second large gear 8 is provided on the steel pipe guiding assembly 6. One end of the central rotating shaft 3 is provided with a synchronous pulley 3a, and a first small gear 3b and a second small gear 3c are provided on the shaft body of the central rotating shaft 3. The steel pipe clamping assembly 5 includes an outer support 5a, an inner support 5b, a clamping wheel 5c and a clamping slider 5d. A limiting wall 5e is provided at the inner wall of the clamping wheel 5c. A limiting sliding rod 5f is provided on the inner support 5b. The clamping slider 5d is sleeved on the limiting sliding rod 5f. One end of the limiting sliding rod 5f is provided with a return spring 5g. One end of the clamping slider 5d is a contact end, and the other end is a clamping end. A handle is provided on the outer wall of the clamping wheel 5c. A steel pipe channel 9 is provided in the steel pipe clamping assembly 5. The steel pipe channel 9 penetrates through the connector 4 and the steel pipe guiding assembly 6. The steel pipe guiding assembly 6 includes a guiding outer shell 6a and a guiding sleeve 6b. A motor 10 is provided at the bottom of the cutting workbench 1. The central rotating shaft 3 is connected to the rotating shaft of the motor 10 by a belt.

[0027] Please refer to Figure 1 , a bearing is provided in the connecting base 2. The central rotating shaft 3 and the connector 4 are connected to the connecting base 2 through the bearing. When rolling cutting is carried out, rotation is provided by the motor 10, and further the central rotating shaft 3 is driven to rotate by the belt. The central rotating shaft 3 is connected to the rotating shaft of the motor 10 through the synchronous pulley 3a. During the process, the central rotating shaft 3 rotates in the connecting base 2 through the bearing, and drives the connector 4 and the steel pipe guiding assembly 6 to rotate through the first large gear 7 and the second large gear 8. The connector 4 is provided in the base 2 and rotates through the bearing.

[0028] The steel pipe guiding assembly 6, the steel pipe clamping assembly 5 and the connector 4 are fixedly connected. The guiding sleeve 6b penetrates through the steel pipe guiding assembly 6 and extends into the interior of the connector 4. The connector 4 is supported by the connecting base 2, and thereby the steel pipe guiding assembly 4 and the steel pipe clamping assembly 5 are fixed.

[0029] Please refer toFigure 4 The first large gear 7 meshes with the first small gear 3b, and the second large gear 8 meshes with the second small gear 3c. The central rotating shaft 3 drives the connector 4 to rotate synchronously by meshing with the first large gear 7 through the first small gear 3b. At the same time, at one end, it drives the steel pipe guiding assembly 6 to rotate synchronously by meshing with the second large gear 8 through the second small gear 3c, providing rotary cutting rotation through the rotation at both ends. The steel pipe clamping assembly 5 is used to clamp the steel pipe and is fixedly connected to the connector 4, and is driven to rotate by the connector 4.

[0030] Please refer to Figure 5 The steel pipe clamping assembly 6 is fixedly connected to the connector 4 through the inner support 5b. A bearing is provided on one side of the inner support 5b close to the clamping wheel 5c. The clamping wheel 5c is connected to the inner support 5b through the bearing, and the clamping wheel 5c can be driven to rotate by the handle on the surface of the clamping wheel 5c. When the clamping wheel 5c starts to rotate, the limiting wall 5e inside it rotates and contacts the contact end of the clamping slider 5d.

[0031] Both sides of the clamping slider 5d are provided with side plates, and through holes are provided on the side plates. The clamping slider 5d is sleeved on the limiting slide rod 5f through the through holes. One end of the return spring 5g is fixedly connected to the side plate of the clamping slider 5d, and the other end of the return spring 5g is fixedly connected to the inner support 5b.

[0032] The limiting wall 5e is arc-shaped. The limiting wall 5e includes a concave part and a convex part. The contact end of the clamping slider 5d is an arc-shaped convex block. The inner wall of the clamping end of the clamping slider 5d is provided with anti-slip lines. The limiting wall 5e is in an arc state that gradually expands, similar to the shape of a comma. When rotating the clamping wheel 5c, the convex part of the limiting wall 5e and the part close to the convex part contact the contact end of the clamping slider 5d. The clamping slider 5d is squeezed by the limiting wall 5e and then moves along the limiting slide rod 5f towards the center of the steel pipe channel 9, that is, the center of the steel pipe clamping assembly 5, to clamp the steel pipe inserted in the steel pipe channel 9. After the rotary cutting is completed, rotating the clamping wheel 5c in the reverse direction can reset the limiting wall 5e, and the contact end of the clamping slider 5d gradually loses the block. The concave part of the limiting wall 5e has a larger space, so the clamping slider 5d slides towards the concave part of the limiting wall 5e through the reset of the return spring 5g, and at this time the clamping slider 5d releases the clamping of the steel pipe.

[0033] The specific working principle is as follows: The operator stands at one end of the steel pipe clamping assembly 5 and inserts the steel pipe into the steel pipe clamping assembly 5. The steel pipe passes through the steel pipe clamping assembly 5, the connector 4 and the steel pipe guiding assembly 6. When passing through the steel pipe guiding assembly 6, it enters the guiding sleeve 6b for guiding. Then, the operator holds the handle and drives the clamping wheel 5c to rotate counterclockwise. Under the extrusion of the limiting wall 5e, the clamping slider 5d is extruded to clamp the steel pipe. After clamping, the motor 10 is started to drive the steel pipe for rotary cutting work.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping device for steel pipe rolling cutting, characterized in that: It includes a cutting workbench (1), on which there is a connecting base (2). A central rotating shaft (3) is provided in the connecting base (2). A connector (4) is provided on the central rotating shaft (3). One end of the connector (4) is provided with a steel pipe clamping assembly (5), and the other end of the connector (4) is provided with a steel pipe guiding assembly (6). A first large gear (7) is provided on the outer surface of the connector (4). A second large gear (8) is provided on the steel pipe guiding assembly (6). One end of the central rotating shaft (3) is provided with a synchronous pulley (3a), and a first small gear (3b) and a second small gear (3c) are provided on the shaft body of the central rotating shaft (3). The steel pipe clamping assembly (5) includes an outer support (5a), an inner support (5b), a clamping wheel (5c) and a clamping slider (5d). A limiting wall (5e) is provided at the inner wall of the clamping wheel (5c). A limiting sliding rod (5f) is provided on the inner support (5b). The clamping slider (5d) is sleeved on the limiting sliding rod (5f). One end of the limiting sliding rod (5f) is provided with a return spring (5g). One end of the clamping slider (5d) is a contact end and the other end is a clamping end. A handle is provided on the outer wall of the clamping wheel (5c). A steel pipe channel (9) is provided in the steel pipe clamping assembly (5), and the steel pipe channel (9) penetrates through the connector (4) and the steel pipe guiding assembly (6). The steel pipe guiding assembly (6) includes a guiding outer shell (6a) and a guiding sleeve (6b). A motor (10) is provided at the bottom of the cutting workbench (1), and the central rotating shaft (3) is connected to the rotating shaft of the motor (10) through a belt.

2. The clamping device for steel pipe rotary cutting according to claim 1, characterized in that: A bearing is provided in the connecting base (2), and the central rotating shaft (3) and the connector (4) are connected to the connecting base (2) through the bearing.

3. The clamping device for steel pipe rolling cutting according to claim 1, wherein: The steel pipe guiding assembly (6), the steel pipe clamping assembly (5) and the connector (4) are fixedly connected, and the guiding sleeve (6b) penetrates through the steel pipe guiding assembly (6) and extends into the interior of the connector (4).

4. A clamping device for steel pipe rolling cutting according to claim 1, characterized in that: The first large gear (7) meshes with the first small gear (3b), and the second large gear (8) meshes with the second small gear (3c).

5. A clamping device for steel pipe rolling cutting according to claim 1, characterized in that: The steel pipe clamping assembly (5) is fixedly connected to the connector (4) through the inner support (5b). A bearing is provided on one side of the inner support (5b) close to the clamping wheel (5c), and the clamping wheel (5c) is connected to the inner support (5b) through the bearing.

6. The clamping device for steel pipe rotary cutting according to claim 1, characterized in that: Side plates are provided on both sides of the clamping slider (5d), and through holes are provided on the side plates. The clamping slider (5d) is sleeved on the limiting sliding rod (5f) through the through holes. One end of the return spring (5g) is fixedly connected to the side plate of the clamping slider (5d), and the other end of the return spring (5g) is fixedly connected to the inner support (5b).

7. A clamping device for steel pipe rolling cutting according to claim 1, characterized in that: The limiting wall (5e) is arc-shaped, and the limiting wall (5e) includes a concave part and a convex part. The contact end of the clamping slider (5d) is an arc-shaped convex block, and anti-slip lines are provided on the inner wall of the clamping end of the clamping slider (5d).

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