Cold sawing mechanism for straight-seam steel pipes

Abstract

This utility model provides a cold sawing mechanism for straight seam steel pipes, including a base. A first electric push rod is fixedly installed on one side of the top of the base. A support column is fixedly connected to the outer end of the push rod of the first electric push rod. A cold saw is fixedly connected to one side wall of the support column. A bracket is fixedly installed on the other side of the top of the base. Four carrier blocks arranged in a U-shape are set on the top of the bracket. Two carrier blocks near the cold saw are fixedly connected to the bracket. An installation groove is opened on the inner side wall of the carrier block. A clamping plate is set in the installation groove. A limit plug is fixedly connected to the outer arc surface of the clamping plate. The limit plug is inserted into a limit slot opened on the side wall of the carrier block. The insertion of the limit plug and the limit slot of this utility model allows the clamping plate and the carrier block to be quickly connected, so that the clamping plate can be directly pulled outward to achieve disassembly, thereby improving the convenience of clamping plate disassembly and assembly, and thus improving the convenience of clamping plate replacement.

Description

Technical Field

[0001] This utility model belongs to the field of straight seam steel pipe processing technology, and in particular relates to a cold sawing mechanism for straight seam steel pipes. Background Technology

[0002] Straight seam steel pipe is a type of steel pipe in which the weld seam is parallel to the longitudinal direction of the pipe. Based on the principle of electromagnetic induction, it utilizes the skin effect and proximity effect to achieve fillerless welding. It is manufactured by rolling steel strip into a circular tube shape and welding it with a straight seam using a high-frequency welding unit. It has advantages such as a narrow heat-affected zone, aesthetically pleasing weld formation, and good mechanical properties. However, existing straight seam steel pipes require cutting after production, necessitating the use of appropriate cold sawing mechanisms.

[0003] Existing cold sawing mechanisms primarily cut steel pipes using a cold saw cutting machine. During cutting, clamping components are used to hold and fix the steel pipes. However, in actual use, the clamping plate structure of the clamping components is relatively fixed and is secured by bolts. Therefore, when clamping and positioning steel pipes with different outer diameters or shapes, it is necessary to remove the bolts and replace different clamping plates, which is cumbersome and inconvenient to quickly disassemble and replace the clamping plates using limit blocks. Therefore, we propose a cold sawing mechanism for straight seam steel pipes. Summary of the Invention

[0004] In view of this, the present invention aims to propose a cold sawing mechanism for straight seam steel pipes to solve the technical problem that it is inconvenient to quickly disassemble and replace the clamping plates using limiting blocks.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A cold sawing mechanism for straight seam steel pipes includes a base, a first electric push rod is fixedly installed on one side of the top of the base, a support column is fixedly connected to the outer end of the push rod of the first electric push rod, and a cold sawing machine is fixedly connected to one side wall of the support column.

[0007] A bracket is fixedly installed on the other side of the top of the base. Four carrier blocks arranged in a U-shape are set on the top of the bracket. Two carrier blocks near the cold saw cutting machine are fixedly connected to the bracket. The inner side wall of the carrier block has an installation groove. A clamping plate is set in the installation groove. A limit plug is fixedly connected to the outer arc surface of the clamping plate. The limit plug is inserted into a limit slot opened on the side wall of the carrier block. A fixing plate is fixedly installed on the other side of the top of the bracket. A second electric push rod is fixedly installed on the outer wall of the fixing plate. The push rod of the second electric push rod moves through the fixing plate and is fixedly connected to a movable plate. The movable plate is fixedly connected to the corresponding two carrier blocks.

[0008] It should be understood that the device is first installed at the point of use. During use, the steel pipe is placed between the two side blocks. The second electric actuator moves the movable plate, causing the two side blocks to move and clamp the steel pipe. The steel pipe is positioned within the clamping plate. Then, the first electric actuator moves the support column, causing the cold saw to move and cut the steel pipe. When different clamping plates need to be replaced to accommodate different steel pipes, simply pull the clamping plate outward to remove the limiting block from the limiting slot, thus achieving quick disassembly and convenient replacement, improving operational convenience.

[0009] Furthermore, a slide rail is provided on the lower side of the support column, the slide rail is fixed to the top of the base, and a matching slider is fitted on the outer wall of the slide rail, the top of the slider being fixedly connected to the support column.

[0010] Furthermore, a fixing block is fixedly installed on one side of one side wall of the carrier block, and a slot is opened on the other side. A first movable block is provided in the inner cavity of the slot. A wedge block is fixedly connected to the inner cavity of the first movable block. The inner cavity of the slot is connected to a connecting hole. The connecting hole is connected to a limiting slot. A second movable block is provided in the connecting hole. The top of the second movable block has an inclined surface that fits with the wedge block. A second limiting groove is opened in the inner cavity of the connecting hole. A matching second limiting slider is inserted into the inner cavity of the second limiting groove. A second spring is fixedly connected to the bottom of the second limiting slider. The tail end of the second spring is fixedly connected to the bottom of the inner cavity of the second limiting groove. A groove adapted to the tail end of the second movable block is opened on the top of the limiting insert.

[0011] Specifically, when the two clamping plates are closed, the fixing block can be inserted into the slot, which pushes the first movable block to move. This causes the wedge block to push the top slope of the second movable block to descend, allowing the second movable block to insert into the groove on the top of the limiting insert, thus positioning the limiting insert. This improves the stability of the clamping plates during cutting, which in turn improves the stability of the steel pipe being cut. It also helps to prevent slight slippage of the clamping plates from causing slight shaking of the clamped steel pipe, which could affect the cutting accuracy. When the load is separated, the fixing block disengages from the first movable block, and the second movable block is lifted and reset under the counter-pushing action of the second spring, which in turn pushes the first movable block to reset, facilitating the removal of the limiting insert.

[0012] Furthermore, a first limiting groove is provided at the bottom of the slot cavity, and a matching first limiting slider is inserted into the cavity of the first limiting groove. A first spring is fixedly connected to the side wall of the first limiting slider, and the outer end of the first spring is fixedly connected to the inner wall of the first limiting groove.

[0013] Furthermore, a cutting slit is provided at the middle of the top of the bracket near the side of the cold saw cutting machine.

[0014] Furthermore, mounting holes are provided at the four corners of the top of the base.

[0015] Furthermore, limit rods are fixedly installed on both sides of one side wall of the movable plate, and the limit rods movably pass through the fixed plate.

[0016] Compared with the prior art, the cold sawing mechanism for straight seam steel pipes described in this utility model has the following advantages:

[0017] The cold sawing mechanism for straight seam steel pipes described in this utility model enables quick connection of the clamping plate and the carrier block through the insertion of the limiting block and the limiting slot. This allows the clamping plate to be disassembled by simply pulling it outward, thereby improving the convenience of clamping plate disassembly and assembly, and further improving the convenience of clamping plate replacement.

[0018] The cold sawing mechanism for straight seam steel pipes described in this utility model allows a fixed block to be inserted into a slot when the two clamping plates are closed. This fixed block pushes the first movable block to move, which in turn causes the wedge block to push the top inclined surface of the second movable block to descend. As a result, the second movable block descends and inserts into the groove on the top of the limiting insert, thus positioning the limiting insert. This improves the stability of the clamping plates during the cutting process, thereby enhancing the stability of the steel pipe being cut. It also helps to prevent slight slippage of the clamping plates from causing slight shaking of the clamped steel pipe, which could affect the cutting accuracy. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the first overall structure of the cold sawing mechanism for straight seam steel pipes according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the second overall structure of the cold sawing mechanism for straight seam steel pipes described in this embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the support and carrier block test structure of the cold sawing mechanism for straight seam steel pipes described in this embodiment of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the carrier block structure of the cold sawing mechanism for straight seam steel pipes described in this embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 11. Slide rail; 12. Slider; 13. Support column; 14. Cold saw cutting machine; 15. First electric actuator; 2. Bracket; 21. Fixed plate; 22. Movable plate; 23. Second electric actuator; 24. Limiting rod; 3. Carrier block; 31. Clamping plate; 32. Limiting insert block; 33. Fixed block; 34. Slot; 35. First movable block; 36. Wedge block; 37. First limiting slider; 38. First spring; 4. Second movable block; 41. Second limiting slider; 42. Second spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-4 As shown, as an embodiment, the cold sawing mechanism for straight seam steel pipe includes a base 1, a first electric push rod 15 is fixedly installed on one side of the top of the base 1, a support column 13 is fixedly connected to the outer end of the push rod of the first electric push rod 15, and a cold saw cutting machine 14 is fixedly connected to one side wall of the support column 13.

[0031] A bracket 2 is fixedly installed on the other side of the top of the base 1. Four carrier blocks 3 are arranged in a U-shape on the top of the bracket 2. Two carrier blocks 3 near the side of the cold saw cutting machine 14 are fixedly connected to the bracket 2. The inner side wall of the carrier block 3 is provided with an installation groove. A clamping plate 31 is provided in the installation groove. A limit plug 32 is fixedly connected to the outer arc surface of the clamping plate 31. The limit plug 32 is inserted into the limit slot opened on the side wall of the carrier block 3. A fixing plate 21 is fixedly installed on the other side of the top of the bracket 2. A second electric push rod 23 is fixedly installed on the outer wall of the fixing plate 21. The push rod of the second electric push rod 23 moves through the fixing plate 21 and is fixedly connected to a movable plate 22. The movable plate 22 is fixedly connected to the corresponding two carrier blocks 3.

[0032] It should be understood that in actual use, the device is first installed at the point of use. Then, during use, the steel pipe is placed between the two side blocks 3. The second electric push rod 23 drives the movable plate 22 to move, thereby moving the two side blocks 3. The side blocks 3 are brought closer together to clamp the steel pipe, which is then positioned within the clamping plate 31. Then, the first electric push rod 15 drives the support column 13 to move, thereby moving the cold saw cutting machine 14 to cut the steel pipe. When it is necessary to change different clamping plates 31 to accommodate different steel pipes, simply pull the clamping plate 31 outward to remove the limiting insert 32 from the limiting slot, thereby achieving quick disassembly and convenient replacement, improving operational convenience.

[0033] It is worth noting that limit rods 24 are fixedly installed on both sides of one side wall of the movable plate 22. The limit rods 24 are movably inserted through the fixed plate 21. The setting of the limit rods 24 limits the movement trajectory of the movable plate 22 driven by the second electric push rod 23, thereby ensuring high movement stability.

[0034] It is worth mentioning that mounting holes are provided at the four corners of the top of the base 1, which makes it easy to install and fix the entire device.

[0035] It should be noted that a cutting slit is provided at the middle of the top of the bracket 2 near the side of the cold saw cutting machine 14. The cutting slit is designed to prevent spatial obstruction when the cold saw cutting machine 14 moves to cut the steel pipe.

[0036] like Figure 1-2 As shown, in one embodiment, a slide rail 11 is provided on the lower side of the support column 13. The slide rail 11 is fixed to the top of the base 1. A matching slider 12 is fitted on the outer wall of the slide rail 11. The top of the slider 12 is fixedly connected to the support column 13.

[0037] It should be understood that when the support column 13 moves under the drive of the first electric push rod 15, it can move along the slide rail 11 using the slider 12, which helps to improve the movement stability of the cold saw cutting machine 14 and thus helps to ensure the cutting accuracy.

[0038] like Figure 1-4 As shown in the embodiment, a fixing block 33 is fixedly installed on one side of one side wall of the carrier block 3, and a slot 34 is opened on the other side. A first movable block 35 is provided in the inner cavity of the slot 34. A wedge block 36 is fixedly connected to the inner cavity of the first movable block 35. A connecting hole is connected to the inner cavity of the slot 34. The connecting hole is connected to the limiting slot. A second movable block 4 is provided in the connecting hole. The top of the second movable block 4 has an inclined surface that fits with the wedge block 36. A second limiting groove is opened in the inner cavity of the connecting hole. A matching second limiting slider 41 is inserted into the inner cavity of the second limiting groove. A second spring 42 is fixedly connected to the bottom of the second limiting slider 41. The tail end of the second spring 42 is fixedly connected to the bottom of the inner cavity of the second limiting groove. A groove that matches the tail end of the second movable block 4 is opened on the top of the limiting insert 32.

[0039] It should be understood that when the two clamping plates 31 are closed, the fixing block 33 can be inserted into the slot 34, thereby the fixing block 33 will push the first movable block 35 to move, which in turn will cause the wedge block 36 to push the top inclined surface of the second movable block to descend, thereby causing the second movable block 4 to descend, and thus the second movable block 4 to be inserted into the groove at the top of the limiting insert 32, thereby achieving the positioning of the limiting insert 32. This improves the stability of the clamping plate 31 during the cutting process, which in turn improves the stability of the steel pipe being cut, and helps to avoid slight shaking of the clamped steel pipe caused by slight slippage of the clamping plate 31, which affects the cutting accuracy. When the carrier block 3 separates, the fixing block 33 disengages from the first movable block 35, and the second movable block 4 is lifted and reset under the counter-pushing action of the second spring 42, thereby pushing the first movable block 35 to reset, which facilitates the removal of the limiting insert 32.

[0040] It should be noted that a first limiting slide groove is provided at the bottom of the inner cavity of the slot 34, and a matching first limiting slider 37 is inserted into the inner cavity of the first limiting slide groove. A first spring 38 is fixedly connected to the side wall of the first limiting slider 37, and the outer end of the first spring 38 is fixedly connected to the inner wall of the first limiting slide groove.

[0041] It should be understood that when the first movable block 35 is not pushed by the fixed block 33, the counter-push of the first spring 38 can make the first movable block 35 return to its accurate position, making it convenient for reuse.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cold sawing mechanism for straight seam steel pipes, comprising a base (1), characterized in that: A first electric push rod (15) is fixedly installed on one side of the top of the base (1). A support column (13) is fixedly connected to the outer end of the push rod of the first electric push rod (15). A cold saw cutting machine (14) is fixedly connected to one side wall of the support column (13). A bracket (2) is fixedly installed on the other side of the top of the base (1). Four carrier blocks (3) are arranged in a square shape on the top of the bracket (2). Two carrier blocks (3) near the cold saw cutting machine (14) are fixedly connected to the bracket (2). An installation groove is opened on the inner side wall of the carrier block (3). A clamping plate (31) is provided in the installation groove. A limit plug (32) is fixedly connected to the outer arc surface of the clamping plate (31). The limit plug (32) is inserted into the limit slot opened on the side wall of the carrier block (3). A fixing plate (21) is fixedly installed on the other side of the top of the bracket (2). A second electric push rod (23) is fixedly installed on the outer wall of the fixing plate (21). The push rod of the second electric push rod (23) moves through the fixing plate (21) and is fixedly connected to a movable plate (22). The movable plate (22) is fixedly connected to the corresponding two carrier blocks (3).

2. The cold sawing mechanism for straight seam steel pipes according to claim 1, characterized in that: A slide rail (11) is provided on the lower side of the support column (13). The slide rail (11) is fixed to the top of the base (1). A matching slider (12) is fitted on the outer wall of the slide rail (11). The top of the slider (12) is fixedly connected to the support column (13).

3. The cold sawing mechanism for straight seam steel pipes according to claim 1, characterized in that: A fixing block (33) is fixedly installed on one side of the side wall of the carrier block (3), and a slot (34) is opened on the other side. A first movable block (35) is provided in the inner cavity of the slot (34). A wedge block (36) is fixedly connected to the inner cavity of the first movable block (35). A connecting hole is connected to the inner cavity of the slot (34). The connecting hole is connected to the limiting slot. A second movable block (4) is provided in the connecting hole. The top of the second movable block (4) is provided with an inclined surface and fits with the wedge block (36). A second limiting groove is provided in the inner cavity of the connecting hole. A matching second limiting slider (41) is inserted into the inner cavity of the second limiting groove. A second spring (42) is fixedly connected to the bottom of the second limiting slider (41). The tail end of the second spring (42) is fixedly connected to the bottom of the inner cavity of the second limiting groove. A groove that matches the tail end of the second movable block (4) is opened on the top of the limiting insert (32).

4. The cold sawing mechanism for straight seam steel pipes according to claim 3, characterized in that: The bottom of the inner cavity of the slot (34) is provided with a first limiting slide groove, and a matching first limiting slider (37) is inserted into the inner cavity of the first limiting slide groove. A first spring (38) is fixedly connected to the side wall of the first limiting slider (37), and the outer end of the first spring (38) is fixedly connected to the inner wall of the first limiting slide groove.

5. The cold sawing mechanism for straight seam steel pipes according to claim 1, characterized in that: A cutting slit is provided at the middle of the top of the bracket (2) near the side of the cold saw (14).

6. The cold sawing mechanism for straight seam steel pipes according to claim 1, characterized in that: Mounting holes are provided at the four corners of the top of the base (1).

7. The cold sawing mechanism for straight seam steel pipes according to claim 1, characterized in that: Limiting rods (24) are fixedly installed on both sides of one side wall of the movable plate (22), and the limiting rods (24) movably pass through the fixed plate (21).

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