CN219944159U

CN219944159U - Cold-drawing chuck

Info

Publication number: CN219944159U
Application number: CN202321068997.5U
Authority: CN
Inventors: 曲敬峰; 郑勇昌; 王志强; 张芝华; 石同号
Original assignee: Liaocheng Huazheng Steel Pipe Co ltd
Current assignee: Liaocheng Huazheng Steel Pipe Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-03
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a cold-drawing chuck, relates to the technical field of seamless steel pipe cold-drawing chucks, and solves the technical problems that the phenomenon of uneven stress is easy to occur and the deformation of a pipe orifice is easy to occur and the fixing effect is poor when the seamless steel pipe is clamped by chucks on two sides at present; the device comprises a bottom plate, wherein an L-shaped plate is fixedly arranged in the middle of the top end of the bottom plate, a fixing frame is fixedly arranged on one side of the L-shaped plate, a pipe body is arranged on one side of the fixing frame, two transverse plates are fixedly arranged in the fixing frame, a bidirectional screw rod is rotationally connected between the two transverse plates, a moving assembly is arranged on the surface of the bidirectional screw rod and comprises two first moving blocks, two first arc plates, a worm wheel and two first sliding blocks, and the two first moving blocks are connected to the two ends of the bidirectional screw rod through screw rod nuts in a threaded manner; the utility model is convenient for clamping the seamless steel tube, avoids the phenomenon of uneven stress, avoids the deformation of the tube orifice, and improves the fixing effect.

Description

Cold-drawing chuck

Technical Field

The utility model relates to the technical field of seamless steel tube cold-drawing chucks, in particular to a cold-drawing chuck.

Background

The seamless steel pipe is formed by perforating a whole round steel, and is called a seamless steel pipe, and the seamless steel pipe can be divided into a hot-rolled seamless steel pipe, a cold-drawn seamless steel pipe, an extruded seamless steel pipe, a jacking pipe and the like according to the production method; cold drawing is a common production process in seamless steel tube production, wherein cold drawing refers to drawing under the condition that materials are at normal temperature, and the steel tube is required to be clamped by a chuck in the cold drawing process.

According to the seamless steel tube cold-drawing chuck provided by the Chinese patent grant publication No. CN210231034U, two sections of steel tubes with different sizes can be conveniently clamped and fixed, so that the sleeved steel tubes can be conveniently pulled out, the use is more convenient, and the time and the labor are saved; however, in the practical use process, the device still has the place to be improved, when the device is used, the seamless steel tube is clamped through the chucks at the two sides, the phenomenon of uneven stress is easy to occur, the deformation of the tube orifice is easy to occur, and the fixing effect is poor.

A cold-drawing chuck is designed for solving the problems.

Disclosure of Invention

The utility model provides a cold-drawing chuck, which solves the technical problems that the phenomenon of uneven stress is easy to occur and the deformation of a pipe orifice is easy to occur and the fixing effect is poor when seamless steel pipes are clamped by chucks on two sides.

In order to solve the technical problems, the cold-drawing chuck provided by the utility model comprises a bottom plate, wherein an L-shaped plate is fixedly arranged in the middle of the top end of the bottom plate, a fixing frame is fixedly arranged on one side of the L-shaped plate, a pipe body is arranged on one side of the fixing frame, two transverse plates are fixedly arranged in the fixing frame, two transverse plates are rotationally connected with two first lead screws between the transverse plates, a moving assembly is arranged on the surface of the two first lead screws and comprises two first moving blocks, two first arc plates, a worm wheel and two first sliding blocks, the two first moving blocks are connected to the two ends of the two first lead screws through screw nuts in a threaded mode, the two first arc plates and the first sliding blocks are respectively and fixedly arranged on the two sides of the two first moving blocks, the two first arc plates are in mutual contact with the inner wall of the pipe body, the worm wheel is fixedly arranged in the middle of the two first lead screws, the two first lead screws are rotationally connected with the two first lead screws, and the surfaces of the two first lead screws are respectively connected with second moving blocks through screw nuts in a threaded mode, and one side of the two second moving blocks is fixedly arranged on the two arc plates.

Preferably, the inside rotation of mount is connected with the worm, the worm wheel has worm meshing connection, the one end of worm passes the mount and with the outside hand wheel fixed connection that sets up of mount.

Preferably, the inner walls of the fixing frames are provided with first sliding grooves matched with the first sliding blocks.

Preferably, the other sides of the two second moving blocks are fixedly provided with second sliding blocks, and the inner walls of the fixing frames are provided with second sliding grooves matched with the second sliding blocks.

Preferably, one ends of the two first screw rods penetrate through the fixing frame and are fixedly connected with an adjusting rotating handle arranged outside the fixing frame.

Preferably, the other ends of the two first screw rods are fixedly provided with limiting plates.

Compared with the related art, the cold-drawing chuck provided by the utility model has the following beneficial effects:

the utility model provides a cold-drawing chuck, which is characterized in that a worm is driven to rotate through a hand wheel arranged, a moving assembly arranged in a fixing frame is matched, so that a worm wheel and a bidirectional screw rod rotate, a corresponding first arc-shaped plate is in mutual extrusion contact with the inner wall of a pipe body, the first screw rod is driven to rotate through an adjusting rotating handle arranged, a screw nut and a second sliding block are matched, the corresponding second arc-shaped plate is mutually extruded and fixed with the outer wall of the pipe body, the seamless steel pipe is clamped conveniently, the phenomenon of uneven stress is avoided, the deformation of a pipe orifice is avoided, and the fixing effect is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model A;

fig. 4 is an enlarged schematic view of the structure of the present utility model at B.

Reference numerals in the drawings: 1. a bottom plate; 2. an L-shaped plate; 3. a fixing frame; 4. a tube body; 5. a two-way screw rod; 6. a moving assembly; 61. a first moving block; 62. a first arcuate plate; 63. a worm wheel; 64. a first slider; 7. a worm; 8. a cross plate; 9. a first screw rod; 10. a second moving block; 11. a second arcuate plate; 12. a second slider; 13. a limiting plate; 14. a hand wheel; 15. and adjusting the rotating handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a cold drawing chuck comprises a bottom plate 1, an L-shaped plate 2 is fixedly arranged in the middle of the top end of the bottom plate 1, a fixing frame 3 is fixedly arranged on one side of the L-shaped plate 2, a pipe body 4 is arranged on one side of the fixing frame 3, two transverse plates 8 are fixedly arranged in the fixing frame 3, a bidirectional screw rod 5 is rotatably connected between the two transverse plates 8, a moving assembly 6 is arranged on the surface of the bidirectional screw rod 5, the moving assembly 6 comprises two first moving blocks 61, two first arc plates 62, a worm wheel 63 and two first sliding blocks 64, the two first moving blocks 61 are respectively and fixedly arranged on two sides of the bidirectional screw rod 5 through screw rod nut threads, the first arc plates 62 and the first sliding blocks 64 are respectively and fixedly arranged on two sides of the two first moving blocks 61, the two first arc plates 62 are respectively and mutually contacted with the inner wall of the pipe body 4, the worm wheel 63 is fixedly arranged in the middle of the bidirectional screw rod 5, two first screw rods 9 are rotatably connected in the fixing frame 3, the surfaces of the two first screw rods 9 are respectively and the second moving blocks 10 are respectively and fixedly arranged on one sides of the two second arc plates 10.

Referring to fig. 3, a worm 7 is rotatably connected to the inside of the fixing frame 3, a worm wheel 63 is engaged with the worm 7, and one end of the worm 7 passes through the fixing frame 3 and is fixedly connected to a hand wheel 14 provided outside the fixing frame 3, so as to drive the bidirectional screw rod 5 to rotate.

Referring to fig. 3, the inner walls of the fixing frame 3 are provided with first sliding grooves matched with the first sliding blocks 64, so as to play a role in limiting and guiding.

Referring to fig. 4, the other sides of the two second moving blocks 10 are fixedly provided with second sliding blocks 12, and the inner walls of the fixing frames 3 are provided with second sliding grooves matched with the second sliding blocks 12 for limiting and guiding.

Referring to fig. 4, one end of each of the two first screw rods 9 passes through the fixing frame 3 and is fixedly connected with an adjusting rotating handle 15 arranged outside the fixing frame 3, so as to drive the arranged first screw rods 9 to rotate.

Referring to fig. 4, the other ends of the two first screw rods 9 are fixedly provided with limiting plates 13 for limiting.

In summary, in the utility model, the cold drawing chuck is placed at a proper position, then a seamless steel tube is placed outside two first arc plates 62, then a worm 7 is driven to rotate by a hand wheel 14, and then a worm wheel 63 and a bidirectional screw rod 5 are driven to rotate, a screw nut and a first sliding block 64 are matched, so that the corresponding first arc plate 62 and the inner wall of a tube body 4 are in mutual extrusion contact, then the first screw rod 9 is driven to rotate by an adjusting handle 15, the screw nut and a second sliding block 12 are matched, the corresponding second arc plate 11 and the outer wall of the tube body 4 are mutually extrusion fixed, the two groups of first arc plates 62 and the second arc plates 11 are matched, the seamless steel tube is clamped conveniently, the phenomenon of uneven stress is avoided, the deformation of the tube opening is avoided, and the fixing effect is greatly improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cold-drawing chuck comprising a base plate (1), characterized in that: the utility model discloses a screw rod fixing device, including bottom plate (1), L template (2) are installed to the middle part fixed mounting on bottom plate (1) top, one side fixed mounting of L template (2) has mount (3), one side of mount (3) is equipped with body (4), the inside fixed mounting of mount (3) has two diaphragm (8), two rotate between diaphragm (8) and be connected with two-way lead screw (5), the surface of two-way lead screw (5) is equipped with moving assembly (6), moving assembly (6) are including two first movable block (61), two first arc (62), worm wheel (63) and two first slider (64), two first movable block (61) all are at the both ends of two-way lead screw (5) through screw nut threaded connection, two the both sides of first movable block (61) are fixed mounting respectively have first arc (62) and first slider (64), two first arc (62) all are contacted each other with the inner wall of body (4), two-way lead screw (5) are installed at worm wheel (5), two first movable block (63) and two first slider (64), two screw rods (9) are connected with two screw rods (9) through two screw rods of two inside of the inside of mount (3), one side of each second moving block (10) is fixedly provided with a second arc-shaped plate (11).

2. A cold drawing chuck according to claim 1, characterized in that the inside of the fixing frame (3) is rotatably connected with a worm (7), the worm wheel (63) is in meshed connection with the worm (7), and one end of the worm (7) penetrates through the fixing frame (3) and is fixedly connected with a hand wheel (14) arranged outside the fixing frame (3).

3. The cold drawing chuck according to claim 1, characterized in that the inner walls of the fixing frame (3) are provided with first sliding grooves matched with the first sliding blocks (64).

4. The cold drawing chuck according to claim 1, wherein the other sides of the two second moving blocks (10) are fixedly provided with second sliding blocks (12), and the inner walls of the fixing frames (3) are provided with second sliding grooves matched with the second sliding blocks (12).

5. A cold drawing chuck according to claim 1, characterized in that one end of both the first screw rods (9) passes through the fixing frame (3) and is fixedly connected with an adjusting knob (15) arranged outside the fixing frame (3).

6. A cold drawing collet as claimed in claim 1, wherein the other ends of the two first lead screws (9) are each fixedly provided with a limiting plate (13).