Clamping device for pipe fitting production cold bending machine

Abstract

The utility model discloses a clamping device for a pipe fitting production cold bending machine, which comprises a working table, a supporting plate is arranged above the working table, the top of the supporting plate is fixedly connected with a mounting plate, one side of the mounting plate is provided with a clamping assembly, the clamping assembly comprises a clamping barrel, and a plurality of air cylinders are arranged on the outer wall of the clamping barrel. The output end of the air cylinder extends to the inner side of the clamping cylinder and is fixedly connected with a clamping block, the inner bottom surface of the clamping cylinder is fixedly connected with a positioning column, the outer side of the positioning column is sleeved with an auxiliary sleeve, the front end of the positioning column is fixedly connected with a threaded column penetrating through the auxiliary sleeve, and a nut is installed on the threaded column; a fixing cylinder is arranged at the top of one end of the workbench, an adjusting column is inserted into the fixing cylinder, the upper portion of the side face is in threaded connection with a fastening bolt, and a limiting cylinder is fixedly connected to the top of the adjusting column. According to the utility model, different pipe fittings can be quickly clamped and fixed, the adjustability is good, and the pipe fittings are kept in the same state when entering the cold bending machine, so that the production quality of the pipe fittings can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a clamping device for a cold bending machine for pipe production. Background Art

[0002] A cold bending machine is a device used to cold bend metal materials. It mainly uses plastic deformation technology to make the metal material produce the desired curved shape. Cold bending machines are usually used to process profiles of various shapes and sizes. The clamping device on the cold bending machine is a device used to clamp and fix the metal material to be processed. These clamping devices are usually designed to be adjusted according to processing needs and can adapt to metal materials of different shapes and sizes.

[0003] The clamping device on the existing cold bending machine has poor adjustability when used for pipe products with different pipe diameters, which brings great limitations to actual production. Moreover, during processing, the existing clamping device is difficult to keep the angle of the pipe constant when it enters the cold bending machine. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the adjustability of the clamping device when applied to pipe products with different pipe diameters is poor, and it is difficult to keep the angle of the pipe constant when it enters the cold bending machine.

[0005] In order to solve the above problems, the technical solution of the utility model is: a clamping device for a cold bending machine for pipe fitting production, comprising a workbench, a support plate is provided above the workbench, and a translation assembly for driving the support plate to move is installed on the workbench, a mounting plate is fixedly connected to the top of the support plate, a clamping assembly is provided on one side of the mounting plate, and a rotating assembly for driving the clamping assembly to rotate is provided on the other side;

[0006] The clamping assembly comprises a clamping cylinder, a plurality of cylinders are installed on the outer wall of the clamping cylinder, the output end of the cylinder extends to the inner side of the clamping cylinder and is fixedly connected with a clamping block, a positioning column is fixedly connected to the inner bottom surface of the clamping cylinder, an auxiliary sleeve is sleeved on the outer side of the positioning column, and a threaded column penetrating the auxiliary sleeve is fixedly connected to the front end of the positioning column, and a nut is installed on the threaded column;

[0007] A central shaft is rotatably installed through the middle of the mounting plate, and one end of the central shaft is fixedly connected to the clamping cylinder;

[0008] A fixing cylinder is provided on the top of one end of the workbench, an adjusting column is inserted inside the fixing cylinder, a fixing bolt is threadedly connected to the upper side, and a limiting cylinder is fixedly connected to the top of the adjusting column.

[0009] Furthermore, the translation assembly includes a motor, two guide rails and two ear plates arranged between the two guide rails, a slide seat is slidably connected above the guide rails, a lead screw is rotatably installed between the two ear plates, a drive block is threadedly connected to the outer side of the lead screw, and one end of the lead screw is connected to the motor.

[0010] Furthermore, the slide seat and the driving block are both fixedly mounted on the bottom of the support plate.

[0011] Furthermore, the clamping tube is a regular hexagonal structure, three cylinders are provided and are installed on the clamping tube in a circular array, and the clamping block is provided with anti-slip grooves.

[0012] Furthermore, the rotating assembly includes a protective cover, a worm wheel and a worm, the worm wheel is installed on the central axis, the worm is rotatably installed on the inner side of the protective cover, and its top passes through the top surface of the protective cover and is connected to a handwheel.

[0013] The advantages of the utility model compared with the existing technology are: the utility model drives the clamping block to move through the extension and contraction of the cylinder, and cooperates with different auxiliary sleeves installed on the positioning column to achieve rapid clamping and fixation of different pipe fittings, and has good adjustability; after one end of the pipe fitting passes through the limit cylinder and then enters the cold bending machine for subsequent work, the pipe fitting maintains the same state when entering the cold bending machine, thereby improving the quality of pipe fitting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional Figure 1 .

[0015] Figure 2 The utility model is a three-dimensional Figure 2 .

[0016] Figure 3 It is a cross-sectional view of the connection structure of the support plate of the utility model.

[0017] Figure 4 It is a cross-sectional view of the internal structure of the protective cover of the utility model.

[0018] As shown in the figure: 1. Workbench; 2. Support plate; 3. Mounting plate; 4. Motor; 5. Guide rail; 6. Ear plate; 7. Slide; 8. Screw; 9. Drive block; 10. Clamping cylinder; 11. Cylinder; 12. Clamping block; 13. Positioning column; 14. Auxiliary sleeve; 15. Threaded column; 16. Center axis; 17. Fixed cylinder; 18. Adjusting column; 19. Tightening bolt; 20. Limiting cylinder; 21. Protective cover; 22. Worm gear; 23. Worm; 24. Handwheel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] like Figure 1 to Figure 2 As shown, a clamping device for a cold bending machine for pipe production includes a workbench 1, a support plate 2 is provided above the workbench 1, and a translation assembly for driving the support plate 2 to move is installed on the workbench 1, and the translation assembly includes a motor 4, two guide rails 5 and two ear plates 6 arranged between the two guide rails 5, a slide seat 7 is slidably connected above the guide rails 5, a screw rod 8 is rotatably installed between the two ear plates 6, a driving block 9 is threadedly connected to the outer side of the screw rod 8, and one end of the screw rod 8 is connected to the motor 4, and the slide seat 7 and the driving block 9 are both fixedly installed at the bottom of the support plate 2. A fixed cylinder 17 is provided at the top of one end of the workbench 1, and an adjusting column 18 is inserted inside the fixed cylinder 17, and a tightening bolt 19 is threadedly connected to the upper side, and a limiting cylinder 20 is fixedly connected to the top of the adjusting column 18.

[0021] The motor 4 drives the screw rod 8 to rotate, prompting the driving block 9 to drive the support plate 2 to move, and the slide seat 7 slides along the guide rail 5. After one end of the pipe passes through the limit cylinder 20, it enters the cold bending machine for subsequent work, so that the pipe remains in the same state when entering the cold bending machine, thereby improving the quality of pipe production.

[0022] like Figures 2 to 3 As shown, a mounting plate 3 is fixedly connected to the top of the support plate 2, a clamping assembly is provided on one side of the mounting plate 3, and a rotating assembly for driving the clamping assembly to rotate is provided on the other side, the clamping assembly includes a clamping cylinder 10 with a regular hexagonal structure, three cylinders 11 are installed on the outer wall of the clamping cylinder 10, the cylinders 11 are installed on the clamping cylinder 10 in a ring array, and the output end thereof extends to the inner side of the clamping cylinder 10 and is fixedly connected to a clamping block 12, the clamping block 12 is provided with anti-slip grooves, a positioning column 13 is fixedly connected to the inner bottom surface of the clamping cylinder 10, an auxiliary sleeve 14 is provided on the outer side of the positioning column 13, and a threaded column 15 penetrating through the auxiliary sleeve 14 is fixedly connected to the front end of the positioning column 13, and a nut is installed on the threaded column 15.

[0023] One end of the pipe is inserted into the clamping cylinder 10 and sleeved on the outside of the auxiliary sleeve 14. The cylinder 11 is extended to make the clamping blocks 12 approach each other to clamp and fix the pipe. It is convenient and quick. The auxiliary sleeve 14 is attached to the inner wall of the pipe, which can increase the friction between the pipe and the pipe to a certain extent. At the same time, it can support the pipe and prevent the end of the pipe from being deformed due to excessive clamping force. The auxiliary sleeve 14 is detachable and can be replaced according to the actual size of the pipe.

[0024] like Figure 1 and Figure 4 As shown, a central shaft 16 is passed through the middle of the mounting plate 3 and rotatably mounted thereon. One end of the central shaft 16 is fixedly connected to the clamping cylinder 10. The rotating assembly includes a protective cover 21, a worm gear 22 and a worm 23. The worm gear 22 is mounted on the central shaft 16. The worm 23 is rotatably mounted on the inner side of the protective cover 21, and its top passes through the top surface of the protective cover 21 and is connected to a handwheel 24.

[0025] The worm 23 is rotated by the hand wheel 24 , and the worm 23 drives the central shaft 16 and the clamping cylinder 10 to rotate through the worm gear 22 , so that the angle of the pipe can be adjusted.

[0026] In specific use, the device is installed at the feed end of the cold bending machine, and the limit cylinder 20 is located between the feed end of the cold bending machine and the clamping cylinder 10. According to the size of the pipe to be processed, a suitable auxiliary sleeve 14 and a limit cylinder 20 are selected and installed on the positioning column 13 and the fixing cylinder 17 respectively. One end of the pipe is inserted into the clamping cylinder 10, and the other end passes through the limit cylinder 20 and extends into the cold bending machine. The cylinder 11 is extended to clamp and fix the pipe. The motor 4 drives the screw rod 8 to rotate, prompting the drive block 9 to drive the support plate 2 and the clamping cylinder 10 to move, thereby realizing the feeding of the pipe. When the angle needs to be adjusted, it is only necessary to rotate the worm 23 through the hand wheel 24.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A clamping device for a pipe production cold bending machine, comprising a workbench (1), a support plate (2) is provided above the workbench (1), and a translation assembly for driving the support plate (2) to move is installed on the workbench (1), a mounting plate (3) is fixedly connected to the top of the support plate (2), a clamping assembly is provided on one side of the mounting plate (3), and a rotating assembly for driving the clamping assembly to rotate is provided on the other side, characterized in that: The clamping assembly comprises a clamping cylinder (10), a plurality of cylinders (11) are mounted on the outer wall of the clamping cylinder (10), the output ends of the cylinders (11) extend to the inner side of the clamping cylinder (10) and are fixedly connected to a clamping block (12), a positioning column (13) is fixedly connected to the inner bottom surface of the clamping cylinder (10), an auxiliary sleeve (14) is sleeved on the outer side of the positioning column (13), and a threaded column (15) penetrating the auxiliary sleeve (14) is fixedly connected to the front end of the positioning column (13), and a nut is mounted on the threaded column (15); A central shaft (16) is rotatably mounted through the middle of the mounting plate (3), and one end of the central shaft (16) is fixedly connected to the clamping cylinder (10); A fixing cylinder (17) is provided at the top of one end of the workbench (1), an adjusting column (18) is inserted inside the fixing cylinder (17), a fixing bolt (19) is threadedly connected to the upper side, and a limiting cylinder (20) is fixedly connected to the top of the adjusting column (18).

2. A clamping device for a pipe production cold bending machine according to claim 1, characterized in that: The translation assembly comprises a motor (4), two guide rails (5) and two ear plates (6) arranged between the two guide rails (5); a slide seat (7) is slidably connected above the guide rails (5); a screw rod (8) is rotatably installed between the two ear plates (6); a driving block (9) is threadedly connected to the outer side of the screw rod (8), and one end of the screw rod (8) is connected to the motor (4).

3. A clamping device for a pipe production cold bending machine according to claim 2, characterized in that: The slide seat (7) and the driving block (9) are both fixedly mounted on the bottom of the support plate (2).

4. The clamping device for a pipe production cold bending machine according to claim 1 is characterized in that: The clamping cylinder (10) is a regular hexagonal structure, three cylinders (11) are provided and are installed on the clamping cylinder (10) in a circular array, and the clamping block (12) is provided with anti-slip grooves.

5. The clamping device for a pipe production cold bending machine according to claim 1 is characterized in that: The rotating assembly comprises a protective cover (21), a worm wheel (22) and a worm (23); the worm wheel (22) is mounted on the central shaft (16); the worm (23) is rotatably mounted on the inner side of the protective cover (21), and the top of the worm (23) passes through the top surface of the protective cover (21) and is connected to a hand wheel (24).

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