Cold-drawn steel pipe head processing equipment

Abstract

The utility model provides cold-drawn steel pipe head processing equipment, and relates to the technical field of cold-drawn steel pipe processing. The steel pipe head circumference extrusion seat is used for extruding the steel pipe head positioned by the first steel pipe cold-drawing positioning seat; the steel pipe head circumference extrusion seat simultaneously applies extrusion force in multiple directions of circumference distribution; the second steel pipe cold-drawing positioning seat is used for re-positioning the steel pipe after the pipe head of the steel pipe is extruded; the steel pipe head flattening seat is used for flattening the steel pipe head subjected to circumferential extrusion; according to the device, a steel pipe body is positioned through the first steel pipe cold-drawing positioning seat and the second steel pipe cold-drawing positioning seat, a steel pipe head is sequentially subjected to circumferential extrusion and flattening through the steel pipe head circumferential extrusion seat and the steel pipe head flattening seat, and the flattened pipe head does not need to be cut.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-drawn steel pipe processing, in particular to a cold-drawn steel pipe head processing device. Background Art

[0002] Cold-drawn steel pipes are widely used in various workplaces because of their excellent mechanical structure. However, there are many steps required in the production of cold-drawn steel pipes. Before the steel pipes are cold-drawn, they need to be pre-treated at the head so that they can be clamped during stretching.

[0003] However, the shape of the pipe head processed by the current cold-drawn steel pipe head processing device is uneven, and the size of the flattened pipe head will be larger than the size of the cold-drawn hole. Therefore, when the processed pipe head wants to pass through the cold-drawn hole, it needs to be cut first, adding an unnecessary process. Utility Model Content

[0004] The utility model aims to provide a cold-drawn steel pipe head processing device, which positions the steel pipe body by a first steel pipe cold-drawn positioning seat and a second steel pipe cold-drawn positioning seat, and successively circumferentially extrude and flatten the steel pipe head by a steel pipe head circumferential extrusion seat and a steel pipe head flattening seat, without the need to cut the flattened pipe head.

[0005] The utility model provides a cold drawn steel pipe head processing device, comprising:

[0006] The first steel pipe cold drawn positioning seat;

[0007] A steel pipe head circumferential extrusion seat, which is used to extrude the steel pipe head positioned by the first steel pipe cold drawing positioning seat;

[0008] The circumferential extrusion seat of the steel pipe head applies extrusion force simultaneously in multiple directions distributed around the circumference;

[0009] The second steel pipe cold-drawn positioning seat is used to re-position the steel pipe after the steel pipe head is extruded;

[0010] A steel pipe head flattening seat is used to flatten the steel pipe head after circumferential extrusion.

[0011] As a further optimization scheme, in order to position the steel pipe body during the circumferential extrusion of the steel pipe head and the flattening of the steel pipe head, the first steel pipe cold drawing positioning seat and the second steel pipe cold drawing positioning seat have the same structure, and the first steel pipe cold drawing positioning seat includes:

[0012] The positioning ring has electric push rods fixedly mounted vertically on the upper and lower sides of the inner ring surface, and a clamping plate fixedly mounted on the telescopic inner end of the electric push rod.

[0013] As a further optimization scheme, in order to perform circumferential extrusion and shrinkage on the steel pipe head, the circumferential extrusion seat of the steel pipe head includes:

[0014] The extrusion ring has an inner ring surface uniformly circumferentially and vertically fixedly equipped with a first hydraulic cylinder, and the number of the first hydraulic cylinders is six, and the telescopic inner end of the first hydraulic cylinder is fixedly equipped with an extrusion block, and the inner side end of the extrusion block is a pointed end.

[0015] As a further optimization scheme, in order to facilitate the flattening of the steel pipe head after circumferential extrusion, the steel pipe head flattening seat includes:

[0016] A rectangular frame, the opening directions of both ends of which are along the length direction of the steel pipe;

[0017] There are two first connecting ear plates, and the two first connecting ear plates are respectively fixedly connected to the lower ends of the outer side surfaces of the rectangular frame;

[0018] The tube head is a flattened structure, which is assembled in a rectangular frame.

[0019] As a further optimization scheme, in order to flatten the steel pipe head after circumferential extrusion, the pipe head flattening structure includes:

[0020] There are two pressing plates which are parallelly distributed above and below, and both pressing plates are slidably assembled in the rectangular frame;

[0021] A second hydraulic cylinder is evenly and fixedly connected between the pressing plate and the same side of the inner wall of the rectangular frame.

[0022] As a further optimization scheme, in order to facilitate the use of the device, it also includes:

[0023] Operation table;

[0024] There are three fixing seats, which are respectively fixedly assembled on the first steel pipe cold drawing positioning seat, the steel pipe head circumferential extrusion seat and the lower end of the second steel pipe cold drawing positioning seat, and the lower end of the fixing seat is detachably fixedly assembled on the operating table;

[0025] The lower end of the steel pipe head flattening seat is detachably fixedly assembled on the operating table.

[0026] As a further optimization scheme, in order to detachably fix the first steel tube cold drawing positioning seat, the steel tube head circumferential extrusion seat and the second steel tube cold drawing positioning seat, the fixing seat includes:

[0027] The U-shaped groove has a second connecting ear plate fixedly mounted on the lower end of its outer wall, and the second connecting ear plate is detachably fixedly mounted on the operating table.

[0028] As a further optimization solution, in order to be able to adjust the installation position of each accessory during use and to be suitable for processing steel pipes of different lengths within a certain range, threaded holes are evenly and horizontally opened on the operating table, and the second connecting ear plate is fixedly connected to the corresponding threaded hole by bolts.

[0029] As a further optimization solution, in order to stably support the device, the operating table includes:

[0030] Rectangular hood;

[0031] The wavy grid frame is fixedly assembled in the rectangular cover, and the lower end of the wavy grid frame rests on the ground.

[0032] As a further optimization solution, in order to prevent slipping when flattening the steel pipe head, the opposing surfaces of the upper and lower pressing plates are coated with an anti-slip layer.

[0033] The utility model provides a cold drawn steel pipe head processing equipment through improvement, which has the following improvements and advantages compared with the prior art:

[0034] Firstly, the device positions the steel pipe body through the first steel pipe cold drawing positioning seat, and then circumferentially extrude the steel pipe head through the steel pipe head circumferential extrusion seat, so that the size of part of the steel pipe head shrinks, and the steel pipe is continued to be moved so that the squeezed and shrunk pipe head enters the steel pipe head flattening seat. At this time, the steel pipe body passes through the second steel pipe cold drawing positioning seat, and the steel pipe body is positioned by the second steel pipe cold drawing positioning seat, and then the steel pipe head flattening seat is used to flatten the steel pipe head after circumferential extrusion, and there is no need to cut the flattened pipe head.

[0035] Secondly, threaded holes are evenly and horizontally opened on the operating table, and the first steel pipe cold-drawn positioning seat, the steel pipe head circumferential extrusion seat and the fixing seat at the lower end of the second steel pipe cold-drawn positioning seat are detachably fixed to the threaded holes by bolts. The installation position of each accessory can be adjusted during use, which is suitable for processing steel pipes of different lengths within a certain range. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a schematic diagram of the structure of the utility model;

[0038] Figure 2This is a schematic diagram of the structure of the first steel pipe cold-drawn positioning seat of the utility model;

[0039] Figure 3 This is a schematic diagram of the structure of the circumferential extrusion seat of the steel pipe head of the utility model;

[0040] Figure 4 This is a schematic diagram of the structure of the steel pipe head flattening seat of the utility model;

[0041] Figure 5 It is a schematic diagram of the structure of the steel pipe head after circumferential extrusion of the utility model;

[0042] Figure 6 It is a structural schematic diagram of the steel pipe head of the utility model after circumferential extrusion and then flattening;

[0043] Figure 7 It is a schematic cross-sectional view of the operating table structure of the utility model.

[0044] Description of reference numerals:

[0045] 1-first steel pipe cold drawing positioning seat, 11-positioning ring, 12-electric push rod, 13-clamp, 2-steel pipe head circumferential extrusion seat, 21-extrusion ring, 22-first hydraulic cylinder, 23-extrusion block, 3-second steel pipe cold drawing positioning seat, 4-steel pipe head flattening seat, 41-rectangular frame, 42-first connecting ear plate, 43-tube head flattening structure, 431-second hydraulic cylinder, 432-pressing plate, 5-fixed seat, 51-U-shaped groove, 52-second connecting ear plate, 6-operating table, 61-rectangular cover, 62-wavy grid frame, 7-threaded hole, 8-anti-slip layer. DETAILED DESCRIPTION

[0046] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] See also Figure 1-7 The utility model provides a technical solution: a cold-drawn steel pipe head processing device, comprising:

[0050] The first steel pipe cold drawing positioning seat 1;

[0051] The steel pipe head circumferential extrusion seat 2 is used to extrude the steel pipe head positioned by the first steel pipe cold drawing positioning seat 1;

[0052] The circumferential extrusion seat 2 of the steel pipe head applies extrusion force in multiple directions distributed around the circumference at the same time, and the multiple directions are six directions, and the angle of each direction is 60 degrees;

[0053] The second steel pipe cold drawing positioning seat 3 is used to reposition the steel pipe after the steel pipe head is extruded;

[0054] The steel pipe head flattening seat 4 is used to flatten the steel pipe head after circumferential extrusion.

[0055] The device positions the steel pipe body through the first steel pipe cold drawing positioning seat 1, and then circumferentially extrude the steel pipe head through the steel pipe head circumferential extrusion seat 2, so that the size of the steel pipe head part shrinks, and the steel pipe is continued to be moved so that the squeezed and shrunk pipe head enters the steel pipe head flattening seat 4. At this time, the steel pipe body passes through the second steel pipe cold drawing positioning seat 3, and the steel pipe body is positioned by the second steel pipe cold drawing positioning seat 3, and then the steel pipe head flattening seat 4 is used to flatten the steel pipe head after circumferential extrusion. Through circumferential extrusion, the size of the flattened pipe head can pass through the cold drawing hole, and there is no need to cut the flattened pipe head.

[0056] In some embodiments, in order to position the steel pipe body during the circumferential extrusion of the steel pipe head and the flattening of the steel pipe head, the first steel pipe cold drawing positioning seat 1 and the second steel pipe cold drawing positioning seat 3 have the same structure, and the first steel pipe cold drawing positioning seat 1 includes:

[0057] The positioning ring 11 has electric push rods 12 fixedly mounted vertically on the upper and lower sides of its inner ring surface, and the telescopic inner end of the electric push rod 12 is fixedly mounted with a clamping plate 13; the two electric push rods 12 are connected to the outer wall power supply and work synchronously, driving the clamping plates 13 on both sides to move inward synchronously and clamp on the outer wall of the steel pipe body to position the steel pipe body.

[0058] In some embodiments, in order to perform circumferential extrusion and shrinkage on the steel pipe head, the steel pipe head circumferential extrusion seat 2 includes:

[0059] The extrusion ring 21 has an inner ring surface uniformly and vertically fixedly equipped with a first hydraulic cylinder 22, and there are six first hydraulic cylinders 22. The telescopic inner end of the first hydraulic cylinder 22 is fixedly equipped with an extrusion block 23, and the inner end of the extrusion block 23 is a pointed end; the first hydraulic cylinder 22 is connected to the external hydraulic system, and the six first hydraulic cylinders 22 work synchronously. The six first hydraulic cylinders 22 drive the extrusion blocks 23 to circumferentially extrude the steel pipe head, and uniformly circumferentially extrude the steel pipe head to form a V-shaped groove, so that the steel pipe head shrinks.

[0060] In some embodiments, in order to facilitate the flattening of the steel pipe head after circumferential extrusion, the steel pipe head flattening seat 4 includes:

[0061] The rectangular frame 41 has two openings at both ends along the length direction of the steel pipe;

[0062] There are two first connecting ear plates 42, which are fixedly connected to the lower ends of the outer side surfaces of the rectangular frame 41 respectively, and the first connecting ear plates 42 are fixedly assembled on the operating table 6 by bolts;

[0063] The tube head flattening structure 43 is assembled in the rectangular frame 41 .

[0064] In some embodiments, in order to flatten the steel pipe head after circumferential extrusion, the pipe head flattening structure 43 includes:

[0065] There are two pressing plates 432, which are parallelly distributed in the upper and lower parts. Both pressing plates 432 are slidably assembled in the rectangular frame 41;

[0066] A second hydraulic cylinder 431 is evenly and fixedly connected between the pressure plate 432 and the same side of the inner wall of the rectangular frame 41; the second hydraulic cylinder 431 is connected to the external hydraulic system, and the upper and lower second hydraulic cylinders 431 work synchronously, driving the upper and lower pressure plates 432 to move inward synchronously to flatten the steel pipe head after circumferential extrusion and contraction located therein, until the steel pipe head after circumferential extrusion and contraction is deformed into an ellipse, and the long diameter of the ellipse is ensured to be smaller than the outer diameter of the steel pipe body.

[0067] In some embodiments, in order to facilitate the use of the device, it also includes:

[0068] Operation table 6;

[0069] There are three fixed seats 5, which are respectively fixedly assembled on the lower ends of the first steel pipe cold drawing positioning seat 1, the steel pipe head circumferential extrusion seat 2 and the second steel pipe cold drawing positioning seat 3, and the lower ends of the fixed seats 5 are detachably fixedly assembled on the operating table 6;

[0070] The lower end of the steel pipe head flattening seat 4 is detachably fixedly assembled on the operating table 6.

[0071] In some embodiments, in order to detachably fix the first steel pipe cold drawing positioning seat 1, the steel pipe head circumferential extrusion seat 2 and the second steel pipe cold drawing positioning seat 3, the fixing seat 5 includes:

[0072] The U-shaped groove 51 has a second connecting ear plate 52 fixedly mounted on the lower end of its outer wall. The second connecting ear plate 52 is detachably fixedly mounted on the operating table 6 .

[0073] In some embodiments, in order to adjust the installation position of each accessory during use and to be applicable to the processing of steel pipes of different lengths within a certain range, threaded holes 7 are uniformly and horizontally opened on the operating table 6, and the second connecting ear plate 52 is fixedly connected to the corresponding threaded holes 7 by bolts;

[0074] By fixing the fixing seat 5 on different threaded holes 7, the positions of the first steel tube cold drawing positioning seat 1, the steel tube head circumferential extrusion seat 2 and the second steel tube cold drawing positioning seat 3 can be adjusted, and then the distances among the first steel tube cold drawing positioning seat 1, the steel tube head circumferential extrusion seat 2, the second steel tube cold drawing positioning seat 3 and the steel tube head flattening seat 4 can be adjusted. It is suitable for processing and using steel tubes of different lengths within a certain range. When necessary, the second steel tube cold drawing positioning seat 3 can be removed to increase the applicable range of the steel tube length size.

[0075] In some embodiments, in order to stably support the device, the operating table 6 includes:

[0076] Rectangular cover 61;

[0077] The wavy grid frame 62 is fixedly assembled in the rectangular cover 61, and the lower end of the wavy grid frame 62 is against the ground; this design reduces the weight of the operating platform 6 and ensures the supporting strength.

[0078] In some embodiments, in order to prevent slipping when flattening the steel pipe head, the opposing surfaces of the upper and lower pressing plates 432 are coated with an anti-slip layer 8.

[0079] Working principle:

[0080] The device positions the steel pipe body through the first steel pipe cold drawing positioning seat 1, and then circumferentially extrude the steel pipe head through the steel pipe head circumferential extrusion seat 2, uniformly circumferentially extrudes on the steel pipe head to form a V-shaped groove, so that the size of the steel pipe head part shrinks, and the steel pipe is continued to move so that the squeezed and shrunk pipe head enters the steel pipe head flattening seat 4. At this time, the steel pipe body passes through the second steel pipe cold drawing positioning seat 3, and the steel pipe body is positioned by the second steel pipe cold drawing positioning seat 3, and then the steel pipe head flattening seat 4 is used to flatten the steel pipe head after circumferential extrusion. Through circumferential extrusion, the size of the flattened pipe head can pass through the cold drawing hole, and there is no need to cut the flattened pipe head.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A cold drawn steel pipe head processing equipment, characterized in that: include: A first steel pipe cold-drawn positioning seat (1); A steel pipe head circumferential extrusion seat (2) used for extruding the steel pipe head positioned by the first steel pipe cold drawing positioning seat (1); The steel pipe head circumferential extrusion seat (2) applies extrusion force simultaneously in multiple directions distributed around the circumference; A second steel pipe cold-drawn positioning seat (3) is used to reposition the steel pipe after the steel pipe head is extruded; The steel pipe head flattening seat (4) is used to flatten the steel pipe head after circumferential extrusion.

2. The cold drawn steel pipe head processing equipment according to claim 1, characterized in that: The first steel tube cold drawing positioning seat (1) and the second steel tube cold drawing positioning seat (3) have the same structure. The first steel tube cold drawing positioning seat (1) comprises: The positioning ring (11) has an electric push rod (12) vertically fixedly mounted on both upper and lower sides of its inner ring surface, and a clamping plate (13) is fixedly mounted on the telescopic inner end of the electric push rod (12).

3. The cold drawn steel pipe head processing equipment according to claim 1, characterized in that: The steel pipe head circumferential extrusion seat (2) comprises: The extrusion ring (21) has a first hydraulic cylinder (22) fixedly mounted vertically on its inner ring surface uniformly circumferentially, and the number of the first hydraulic cylinders (22) is six; the telescopic inner end of the first hydraulic cylinder (22) is fixedly mounted with an extrusion block (23), and the inner end of the extrusion block (23) is a pointed end.

4. The cold drawn steel pipe head processing equipment according to claim 1, characterized in that: The steel pipe head flattening seat (4) comprises: The rectangular frame (41) has two openings at both ends along the length direction of the steel pipe; There are two first connecting ear plates (42), and the two first connecting ear plates (42) are respectively fixedly connected to the lower ends of the outer side surfaces of the rectangular frame (41); The tube head flattening structure (43) is assembled in the rectangular frame (41).

5. The cold drawn steel pipe head processing equipment according to claim 4, characterized in that: The tube head flattening structure (43) comprises: There are two pressing plates (432) arranged in parallel in the upper and lower parts, and both pressing plates (432) are slidably assembled in the rectangular frame (41); A second hydraulic cylinder (431) is evenly and fixedly connected between the pressing plate (432) and the same side of the inner wall of the rectangular frame (41).

6. The cold drawn steel pipe head processing equipment according to claim 1, characterized in that: Also includes: Operating table (6); There are three fixed seats (5), and the three fixed seats (5) are respectively fixedly assembled on the lower ends of the first steel pipe cold drawing positioning seat (1), the steel pipe head circumferential extrusion seat (2) and the second steel pipe cold drawing positioning seat (3), and the lower ends of the fixed seats (5) are detachably fixedly assembled on the operating table (6); The lower end of the steel pipe head flattening seat (4) is detachably fixedly mounted on the operating table (6).

7. The cold drawn steel pipe head processing equipment according to claim 6, characterized in that: The fixing seat (5) comprises: The U-shaped groove (51) has a second connecting ear plate (52) fixedly mounted on the lower end of its outer wall. The second connecting ear plate (52) is detachably fixedly mounted on the operating table (6).

8. The cold drawn steel pipe head processing equipment according to claim 7, characterized in that: The operating table (6) is evenly and transversely provided with threaded holes (7), and the second connecting ear plate (52) is fixedly connected to the corresponding threaded holes (7) by means of bolts.

9. The cold drawn steel pipe head processing equipment according to claim 6, characterized in that: The operating platform (6) comprises: Rectangular cover (61); The wavy grid frame (62) is fixedly assembled in the rectangular cover (61), and the lower end of the wavy grid frame (62) is against the ground.

10. The cold drawn steel pipe head processing equipment according to claim 5, characterized in that: The opposing surfaces of the upper and lower pressing plates (432) are coated with an anti-slip layer (8).

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