Clamp suitable for machining steel pipes of different sizes

By designing a clamping device consisting of a wedge block, a two-way lead screw, and a conveyor belt, the problem of clamping and flipping steel pipes of different sizes was solved, enabling multi-sided processing of steel pipes and improving processing efficiency.

CN224209751UActive Publication Date: 2026-05-08CHENGDU ZONGYUAN MASCH EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU ZONGYUAN MASCH EQUIP CO LTD
Filing Date
2024-12-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing steel pipe processing fixtures are difficult to adapt to steel pipes of different sizes, and it is difficult to achieve the flipping and conveying of steel pipes during processing.

Method used

The fixture design includes inclined blocks, bidirectional lead screws, tension motors, conveyor belts, and flipping conveyor belts. By adjusting the spacing of the inclined blocks and the coordination of the conveyor belts, it is possible to clamp, transport, and flip steel pipes of different sizes.

Benefits of technology

It enables effective clamping and flipping of steel pipes of different sizes, allowing processing from multiple sides and improving the flexibility and efficiency of steel pipe processing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224209751U_ABST
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Abstract

The utility model discloses a clamp suitable for machining steel pipes with different sizes, which comprises a box body, two symmetrically arranged inclined blocks are arranged in the box body, the width of each inclined block is gradually reduced from bottom to top, the height of each inclined block is gradually reduced from the outer side of the box body to the middle of the box body, and the clamp further comprises a two-way screw rod with two sections of threads opposite in screwing direction. The two inclined blocks are in threaded connection with different threads of the two-way lead screw, and one end of the two-way lead screw is connected with an elastic motor. The steel pipe conveying and overturning device can be used for placing steel pipes with different sizes, and can be used for conveying and overturning the steel pipes.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically to a fixture suitable for processing steel pipes of different sizes. Background Technology

[0002] Steel pipes are widely used. When processing steel pipes, it is necessary to process all sides of the steel pipe. Due to the large weight of steel pipes, it is not easy to flip them. At the same time, the steel pipes to be processed are of different sizes, and the existing steel pipe processing fixtures are not suitable for steel pipes of different sizes. Utility Model Content

[0003] The purpose of this utility model is to provide a fixture suitable for processing steel pipes of different sizes, which can hold steel pipes of different sizes and at the same time transport and flip the steel pipes.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] A fixture suitable for processing steel pipes of different sizes includes a housing with two symmetrically arranged wedges inside. The width of the wedges gradually decreases from bottom to top, and the height of the wedges gradually decreases from the outer side to the middle of the housing. It also includes a bidirectional lead screw with two sections of oppositely helical threads. The two wedges are threaded onto different threads of the bidirectional lead screw, and a tensioning motor is connected to one end of the lead screw. The bidirectional lead screw uses existing technology and will not be described in detail. A guide rail is provided at the bottom of the housing, parallel to the lead screw. Guide grooves for embedding into the guide rail are provided on the bottom surface of the wedges, extending parallel to the guide rail. Its function is to drive the tensioning motor to rotate the bidirectional lead screw around its own axis through the arrangement of the two opposing wedges, the bidirectional lead screw, and the tensioning motor. By utilizing the inherent characteristics of the bidirectional lead screw, the distance between the two wedges can be adjusted according to the size of the steel pipe.

[0006] Furthermore, a conveyor belt is provided above the inclined block to push the steel pipe to move along its own axial direction. The shaft of the conveyor belt is arranged parallel to the bidirectional lead screw. A first mounting frame for mounting the conveyor belt is provided inside the housing. A first motor connected to the shaft of the conveyor belt is fixedly connected to the first mounting frame. Its function is that, by setting up the conveyor belt, the steel pipe can be driven to move along its own axial direction when the conveyor belt is in contact with the steel pipe.

[0007] Furthermore, a first cylinder is connected above the first mounting frame to drive the first mounting frame to move up and down. Its function is to adjust the height of the first mounting frame so that the conveyor belt contacts the steel pipe, thereby accommodating steel pipes of different sizes.

[0008] Furthermore, the housing is equipped with a rotating conveyor belt for rotating the steel pipe around its own axis. The rotating shaft of the rotating conveyor belt is perpendicular to the bidirectional lead screw. The housing also has a second mounting bracket for mounting the rotating conveyor belt, on which a second motor, connected to the rotating shaft of the rotating conveyor belt, is fixedly connected. Its function is that, by setting up the rotating conveyor belt, the steel pipe can be rotated around its own axis while in contact with the conveyor belt, thereby enabling processing of different sides of the steel pipe from above.

[0009] Furthermore, a second cylinder is connected to the second mounting frame for moving the second mounting frame up and down. Its function is to adjust the height of the second mounting frame so that the tilting conveyor belt contacts the steel pipe, thereby allowing the use of steel pipes of different sizes.

[0010] Furthermore, the transport conveyor belt is horizontally positioned, while the tilting conveyor belt is inclined. Both the transport conveyor belt and the tilting conveyor belt employ existing conveyor belt technology, and both include a belt body and a rotating shaft, with the belt body being a V-shaped belt.

[0011] Furthermore, rolling balls are evenly distributed on the inclined surface of the inclined block. The function of these rolling balls is to reduce the friction between the steel pipe and the inclined block when the steel pipe moves axially and rotates around its axis.

[0012] Furthermore, the inclined block is provided with a cover plate for covering the inclined surface of the inclined block and exposing the top of the rolling ball. The inner diameter of the through hole on the cover plate for exposing the rolling ball is smaller than the outer diameter of the rolling ball. Its function is to prevent the rolling ball from falling out by setting up the cover plate.

[0013] Furthermore, a clamping plate is connected to the top of the cover plate to cover the side of the inclined block adjacent to the inclined surface. Its function is to prevent the cover plate from slipping off the inclined surface of the inclined block.

[0014] Furthermore, the clamping plate is provided with bolts for threaded connection with the inclined block. The purpose of these bolts is to prevent the cover plate from shaking.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up two opposing inclined blocks, a double-acting lead screw, and a tensioning motor, the tensioning motor drives the double-acting lead screw to rotate around its own axis. Through the characteristics of the double-acting lead screw itself, the distance between the two inclined blocks can be adjusted according to the size of the steel pipe.

[0017] 2. By setting up a conveyor belt, the steel pipe can be moved along its own axial direction while in contact with the conveyor belt;

[0018] 3. By setting up a rotating conveyor belt, the steel pipe can be rotated around its own axis while in contact with the conveyor belt, thus enabling processing of different sides of the steel pipe from above. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Example 1.

[0020] Reference numerals: 1. Box body; 2. Inclined block; 3. Bidirectional lead screw; 4. Conveyor belt; 5. First mounting frame; 6. First motor; 7. First cylinder; 8. Tilting conveyor belt; 9. Second mounting frame; 10. Second cylinder; 11. Ball bearing; 12. Cover plate; 13. Clamping plate; 14. Bolt. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] A fixture suitable for processing steel pipes of different sizes, such as Figure 1As shown, the device includes a housing 1, inside which are two symmetrically arranged inclined blocks 2. The width of the inclined blocks 2 gradually decreases from bottom to top, and the height of the inclined blocks 2 gradually decreases from the outside to the middle of the housing 1. It also includes a bidirectional lead screw 3 with two sections of threads in opposite directions. The two inclined blocks 2 are threaded onto different threads of the bidirectional lead screw. One end of the bidirectional lead screw 3 is connected to a tensioning motor. The bidirectional lead screw 3 uses existing technology and will not be described in detail. A guide rail is provided at the bottom of the housing 1, parallel to the lead screw. The bottom surface of the inclined blocks 2 has guide grooves for embedding into the guide rail, and the extension direction of the guide grooves is parallel to the guide rail. Its function is to drive the tensioning motor to rotate the bidirectional lead screw 3 around its own axis through the arrangement of the two opposing inclined blocks 2, the bidirectional lead screw 3, and the tensioning motor. Through the inherent characteristics of the bidirectional lead screw 3, the distance between the two inclined blocks 2 can be adjusted according to the size of the steel pipe.

[0026] Specifically, such as Figure 1 As shown, a conveyor belt 4 for pushing the steel pipe to move along its own axial direction is provided above the inclined block 2. The rotating shaft of the conveyor belt 4 is arranged parallel to the bidirectional lead screw 3. A first mounting frame 5 for mounting the conveyor belt 4 is provided inside the housing 1. A first motor 6 connected to the rotating shaft of the conveyor belt 4 is fixedly connected to the first mounting frame 5. Its function is that, by setting up the conveyor belt 4, the steel pipe can be driven to move along its own axial direction when the conveyor belt 4 is in contact with the steel pipe.

[0027] Specifically, such as Figure 1 As shown, a first cylinder 7 is connected above the first mounting frame 5 to drive the first mounting frame 5 to move up and down. Its function is to adjust the height of the first mounting frame 5 so that the conveyor belt 4 contacts the steel pipe, thereby accommodating steel pipes of different sizes.

[0028] Specifically, such as Figure 1 As shown, the housing 1 is equipped with a rotating conveyor belt 8 for rotating the steel pipe around its own axis. The rotating shaft of the rotating conveyor belt 8 is perpendicular to the bidirectional lead screw 3. The housing 1 is also equipped with a second mounting bracket 9 for mounting the rotating conveyor belt 8. A second motor, which is connected to the rotating shaft of the rotating conveyor belt 8, is fixedly connected to the second mounting bracket 9. Its function is that, by setting up the rotating conveyor belt 8, the steel pipe can be rotated around its own axis while in contact with the rotating conveyor belt 8, thereby enabling processing of different sides of the steel pipe from above.

[0029] Specifically, such as Figure 1 As shown, a second cylinder 10 is connected to the second mounting frame 9 to drive the second mounting frame 9 to move up and down. Its function is to adjust the height of the second mounting frame 9 so that the flipping conveyor belt 8 contacts the steel pipe, thereby allowing the use of steel pipes of different sizes.

[0030] Specifically, such as Figure 1 As shown, the transport conveyor belt 4 is horizontally arranged, while the tilting conveyor belt 8 is inclined. Both the transport conveyor belt 4 and the tilting conveyor belt 8 adopt existing conveyor belt technology, and both include a belt body and a rotating shaft. The belt body adopts a V-shaped belt. The first mounting frame 5 and the second mounting frame 9 can adopt any existing structure that can fix the rotating shaft, and will not be described in detail.

[0031] Specifically, such as Figure 1 As shown, rolling balls 11 are evenly distributed on the inclined surface of the inclined block 2. Their function is to reduce the friction between the steel pipe and the inclined block 2 when the steel pipe moves axially and rotates around the axis.

[0032] Specifically, such as Figure 1 As shown, the inclined block 2 is provided with a cover plate 12 for covering the inclined surface of the inclined block 2 and exposing the top of the rolling ball 11. The inner diameter of the through hole on the cover plate 12 for exposing the rolling ball 11 is smaller than the outer diameter of the rolling ball 11. Its function is to prevent the rolling ball 11 from falling out by setting the cover plate 12.

[0033] Specifically, such as Figure 1 As shown, a clamping plate 13 is connected to the top of the cover plate 12 to cover the side of the inclined block 2 adjacent to the inclined surface. Its function is to prevent the cover plate 12 from slipping off the inclined surface of the inclined block 2 by setting the clamping plate 13.

[0034] Specifically, such as Figure 1 As shown, a bolt 14 for threaded connection with the inclined block 2 is provided through the clamping plate 13. Its function is to prevent the cover plate 12 from shaking by setting the bolt 14.

[0035] The working principle of this embodiment is explained as follows: First, the steel pipe is placed between the inclined surfaces of the two inclined blocks 2. The distance between the two inclined blocks 2 is adjusted by driving the tension motor to accommodate steel pipes of different sizes. For example, when clamping a steel pipe with a smaller outer diameter, the distance between the two inclined blocks 2 is reduced. When the steel pipe needs to be transported, the first cylinder 7 is driven to move the first mounting frame 5 downward, so that the conveyor belt 4 comes into contact with the steel pipe. The first motor 6 is driven to drive the conveyor belt 4 to rotate. The steel pipe is driven forward by the friction between the conveyor belt 4 and the steel pipe. When the steel pipe needs to be flipped, the second mounting frame 9 is driven to move downward, so that the flipping conveyor belt 8 comes into contact with the steel pipe. The second motor is driven to drive the flipping conveyor belt 8 to rotate. The steel pipe is flipped by the friction between the flipping conveyor belt 8 and the steel pipe.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A fixture suitable for processing steel pipes of different sizes, characterized in that: The device includes a housing (1), which contains two symmetrically arranged inclined blocks (2). The width of the inclined blocks (2) gradually decreases from bottom to top, and the height of the inclined blocks (2) gradually decreases from the outside of the housing (1) to the middle of the housing (1). It also includes a bidirectional screw (3) with two sections of threads with opposite directions. The two inclined blocks (2) are respectively threaded to different sections of the bidirectional screw (3). One end of the bidirectional screw (3) is connected to a tensioning motor. The housing (1) contains a rotating conveyor belt (8) for rotating the steel pipe around its own axis. The rotating shaft of the rotating conveyor belt (8) is set perpendicular to the bidirectional screw (3). The rotating conveyor belt (8) is set at an angle. The housing (1) contains a second mounting frame (9) for mounting the rotating conveyor belt (8). A second motor connected to the rotating shaft of the rotating conveyor belt (8) is fixedly connected to the second mounting frame (9). A second cylinder (10) for driving the second mounting frame (9) to move up and down is connected to the second mounting frame (9).

2. The fixture for processing steel pipes of different sizes according to claim 1, characterized in that: Above the inclined block (2) is a conveyor belt (4) for pushing the steel pipe to move along its own axis. The conveyor belt (4) is set horizontally, and the shaft of the conveyor belt (4) is set parallel to the double screw (3). The housing (1) is provided with a first mounting frame (5) for installing the conveyor belt (4). A first motor (6) connected to the shaft of the conveyor belt (4) is fixedly connected to the first mounting frame (5).

3. A fixture for processing steel pipes of different sizes according to claim 2, characterized in that: A first cylinder (7) is connected above the first mounting bracket (5) for driving the first mounting bracket (5) to move up and down.

4. A fixture for processing steel pipes of different sizes according to claim 1, characterized in that: Rolling balls (11) are evenly distributed on the inclined surface of the inclined block (2).

5. A fixture for processing steel pipes of different sizes according to claim 4, characterized in that: The inclined block (2) is provided with an inclined surface for covering the inclined block (2) and exposing the top of the ball (11).

6. A fixture for processing steel pipes of different sizes according to claim 5, characterized in that: The top of the cover plate (12) is connected to a clamp (13) for covering the side of the inclined block (2) adjacent to the inclined surface.

7. A fixture for processing steel pipes of different sizes according to claim 6, characterized in that: The clamping plate (13) is provided with bolts (14) for threaded connection with the inclined block (2).