Special-shaped cold bent pipe clamping device

Abstract

The utility model relates to the technical field of cold bent pipe machining, and discloses a special-shaped cold bent pipe clamping device which comprises a machining table, a pipe fitting bending mechanism for bending a pipe body is arranged at the top end of the machining table, and the pipe fitting bending mechanism comprises a fixed bending die connected to the top end of the machining table through a first assembly convenient to disassemble and assemble; the fixed bending die can be disassembled and assembled through the first assembly convenient to disassemble and assemble, and the movable bending die can be disassembled and assembled through the second assembly convenient to disassemble and assemble, so that bent pipe bending machining dies of different special shapes can be replaced, the applicability of cold bent pipe machining is improved, in the machining process, a pipe body penetrates through a pipe penetrating hole, and the machining efficiency is improved. And the clamping screw rod is rotated, and the clamping screw rod is in threaded connection with the fixed mold, so that the arc-shaped clamping and ejecting block moves and is matched with the positioning groove to eject, fix and clamp the pipe body, the situation that the bending size is influenced by the movement of the head of the pipe body when the pipe body is bent and stressed can be avoided, and the bending precision of the special-shaped cold bent pipe is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold bending pipe processing technical field, concretely to a special-shaped cold bending pipe clamping device. BACKGROUND

[0002] The thin-walled pipe produced by the traditional production needs to be bent when being used, and the current bending mode is to bend according to experience, so that the precision of the bent pipe cannot be guaranteed, and the bending efficiency is low, which cannot meet the demand of rapid production.

[0003] When the cold bending pipe is bent, the pipe body is currently placed into the bending die for bending treatment, for example, the Chinese authorized patent with the application number CN202120756460.2 discloses a thin-walled pipe special-shaped bending tool. A thin-walled pipe special-shaped bending tool, which comprises a workbench, a cylinder seat is movably installed on the workbench through a cylinder rotating shaft, a cylinder is fixed on the cylinder seat through bolts, a cushion block is fixed on the left side of the workbench through bolts, a fixed seat is fixed on the cushion block through bolts, a movable head is movably installed on the cushion block through a pin shaft, the top rod of the cylinder is movably connected with the movable head through an adapter, and there is a material groove between the movable head and the fixed seat. When the thin-walled pipe special-shaped bending tool is used, the die forming is used to ensure the bending size of the pipe and avoid the deformation of the pipe diameter when the thin-walled pipe is bent, the tool can bend two R at one time, the two R sizes of the clamping block die can be the same or different, only one air valve switch is needed, and two R forming can be completed in one stroke, so that the production efficiency is high. However, the head of the pipe body is not fixed in the actual processing process, and the pipe body head is easily displaced when the pipe body is bent by the bending die, which affects the bending precision of the special-shaped cold bending pipe. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a special-shaped cold bending pipe clamping device to solve the technical problems that the precision of the pipe bent by the traditional method cannot be guaranteed, the bending efficiency is low, and the demand of rapid production cannot be met.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model provides a special-shaped cold bending pipe clamping device, including the processing platform, the top of processing platform is equipped with the pipe fitting bending mechanism of pipe body bending, pipe fitting bending mechanism includes the fixed bending mould of first convenient dismounting subassembly connection in the top of processing platform and the rotating strip board of pivot connection in the top of processing platform, the top of rotating strip board is equipped with the movable bending mould of matching with fixed bending mould, the top of processing platform is equipped with the drive assembly for driving movable bending mould pivot rotation, movable bending mould is installed on rotating strip board through second convenient dismounting subassembly, the fixed bending mould includes fixed mould, the one side of fixed mould is equipped with the bending cavity, the inner wall of bending cavity is equipped with first bending pipe groove, the one end of fixed mould is equipped with the pipe hole of first bending pipe groove intercommunication, the inner wall of first bending pipe groove is equipped with the positioning groove of corresponding with pipe hole and to pipe body positioning, be equipped with the clamping assembly of pipe body clamping on fixed mould, clamping assembly includes the rectangular groove of screw connection in one side of fixed mould, the inside screw connection of rectangular groove has clamping screw, the inner wall of positioning groove is equipped with the storage groove, the inner end of clamping screw is equipped with the arc clamping top block of matching with storage groove through bearing.

[0007] As a preferred technical scheme of the utility model, the end of the pipe hole and the positioning groove is rounded.

[0008] As a preferred technical scheme of the utility model, one end of the fixed mould is provided with a positioning assembly, the positioning assembly includes an adjusting screw threadedly connected to the fixed mould and extending into the positioning groove, an inner end of the adjusting screw is connected to a positioning plate through a bearing, and an outer end of the adjusting screw is provided with a rotating wheel.

[0009] As a preferred technical scheme of the utility model, the movable bending mould includes a movable mould, and a second bending pipe groove corresponding to the first bending pipe groove is arranged on a side of the movable mould.

[0010] As a preferred technical scheme of the utility model, the first convenient dismounting assembly includes a positioning back plate arranged on the top of the processing platform, a plurality of positioning columns are arranged on the positioning back plate, and a positioning groove matched with the positioning columns is arranged on a side of the fixed mould.

[0011] As a preferred technical scheme of the utility model, both ends of the fixed mould are provided with plug-in strip plates, the processing platform is provided with plug-in strip grooves matched with the plug-in strip plates, the plug-in strip plates are provided with first spring bolts, and the processing platform is provided with first limiting holes communicated with the plug-in strip grooves and matched with the pin rods of the first spring bolts.

[0012] As a preferred technical scheme of the utility model, the second detachable assembly comprises a connecting plate arranged on the back of the movable die, a connecting groove matched with the connecting plate is arranged on the rotating strip plate, a second spring bolt is embedded on the connecting plate, and a second limiting hole matched with the pin rod of the second spring bolt is arranged on the connecting plate.

[0013] As a preferred technical scheme of the utility model, the driving assembly comprises a hydraulic cylinder installed at the top end of the machining table, and a connecting rod connected with the rotating strip plate through the rotating shaft is connected with the output shaft of the hydraulic cylinder.

[0014] The utility model discloses beneficial effects are:

[0015] The special-shaped cold-bent pipe clamping device can disassemble and assemble the fixed bending die through the first detachable assembly, can disassemble and assemble the movable bending die through the second detachable assembly, can replace the bending processing die of different special-shaped bent pipes, improves the applicability of the cold-bent pipe processing, and when processing, the pipe body is inserted into the inside of the positioning groove from the pipe penetrating hole, the clamping screw rod is rotated, the clamping screw rod is screwed with the fixed die, the arc-shaped clamping top block is moved and fixed and clamped to the pipe body in cooperation with the positioning groove, the situation that the pipe head moves and affects the bending size when the pipe body is bent can be avoided, the accuracy of the special-shaped cold-bent pipe bending is ensured, the driving assembly drives the rotating strip plate to rotate through the rotating shaft, the rotating strip plate drives the movable bending die to move, and the movable bending die is cooperated with the fixed bending die to bend the pipe body. BRIEF DESCRIPTION OF DRAWINGS

[0016] One or more embodiments are illustrated by way of example in the drawings that are for illustrative purposes only, and not for the limitation of embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, the drawings do not constitute proportional limitation.

[0017] Figure 1 It is a structure schematic view of the special-shaped cold-bent pipe clamping device of the utility model,

[0018] Figure 2 It is a fixed bending die bottom view of the special-shaped cold-bent pipe clamping device of the utility model,

[0019] Figure 3 It is a fixed bending die sectional view of the special-shaped cold-bent pipe clamping device of the utility model,

[0020] Figure 4 It is a Figure 3 clamping assembly sectional view of the special-shaped cold-bent pipe clamping device of the utility model,

[0021] Figure 5It is the fixed die and processing table connection section view of the special-shaped cold bending pipe clamping device.

[0022] Figure 6 It is the movable die and rotating strip plate connection section view of the special-shaped cold bending pipe clamping device.

[0023] In the figure: 1, processing table; 2, pipe bending mechanism; 3, first detachable assembly; 4, fixed bending die; 5, rotating strip plate; 6, movable bending die; 7, drive assembly; 8, second detachable assembly; 9, fixed die; 10, bending cavity; 11, first bending pipe groove; 12, pipe passing hole; 13, positioning groove; 14, positioning assembly; 15, adjusting screw; 16, positioning plate; 17, movable die; 18, second bending pipe groove; 19, positioning back plate; 20, positioning column; 21, positioning groove; 22, plug-in strip plate; 23, plug-in strip groove; 24, first spring bolt; 25, connecting plate; 26, connecting groove; 27, second spring bolt; 28, hydraulic cylinder; 29, connecting rod; 30, rectangular groove; 31, clamping screw; 32, storage groove; 33, arc-shaped clamping top block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will be combined with the drawings to the utility model each embodiment detailedly. However, the ordinary skilled in the art can understand that in the utility model each embodiment, in order to make the reader better understanding of the present application and proposed many technical details. However, even without these technical details and based on the various changes and modifications of each embodiment, the technical scheme claimed by each claim of the present application can be realized.

[0025] Embodiment: as Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model discloses a special-shaped cold bending pipe clamping device, including processing table 1, the top of processing table 1 is equipped with the pipe body bending pipe bending mechanism 2 of bending, pipe bending mechanism 2 includes the fixed bending mould 4 of first convenient dismounting subassembly 3 connection in the top of processing table 1 and the rotating strip board 5 of pivot connection in the top of processing table 1, the top of rotating strip board 5 is equipped with the movable bending mould 6 of matching with fixed bending mould 4, the top of processing table 1 is equipped with the drive assembly 7 for driving movable bending mould 6 pivot rotation, movable bending mould 6 is installed on rotating strip board 5 through second convenient dismounting subassembly 8, the fixed bending mould 4 includes fixed mould 9, and one side of fixed mould 9 is equipped with bending cavity 10, and the inner wall of bending cavity 10 is equipped with first bending pipe groove 11, and one end of fixed mould 9 is equipped with the pipe hole 12 of communicating with first bending pipe groove 11, and the inner wall of first bending pipe groove 11 is equipped with the positioning groove 13 corresponding with pipe hole 12 and positioning pipe body, be equipped with the clamping assembly of pipe body clamping on fixed mould 9, and clamping assembly includes the rectangular groove 30 of screwing in one side of fixed mould 9, and the inside screwing of rectangular groove 30 is equipped with clamping screw rod 31, and the inner wall of positioning groove 13 is equipped with the receiving groove 32, and the inner end of clamping screw rod 31 is equipped with the arc-shaped clamping top block 33 of matching with receiving groove 32 through bearing, and the inner wall of arc-shaped clamping top block 33 is equipped with antiskid pad, through the first convenient dismounting subassembly 3 of being equipped with, can dismount fixed bending mould 4, and second convenient dismounting subassembly 8 can dismount movable bending mould 6, so that the bending processing mould of different special-shaped pipe bending can be replaced, improve the applicability of cold bending pipe processing, when processing, pipe body is inserted into from pipe hole 12 until inserting to the inside of positioning groove 13, rotates clamping screw rod 31, and clamping screw rod 31 is screwed with fixed mould 9, so that arc-shaped clamping top block 33 moves and cooperates with positioning groove 13 and tightly fixes the clamping of pipe body, can avoid the situation that pipe body head movement influences bending size when bending pipe body under stress, ensure the precision of special-shaped cold bending pipe bending, and drive assembly 7 drives rotating strip board 5 pivot rotation, and rotating strip board 5 drives movable bending mould 6 to move, so that movable bending mould 6 cooperates with fixed bending mould 4 and bends pipe body.

[0026] Wherein, the end of pipe hole 12 and positioning groove 13 is all rounded corner arrangement, and the corner of first bending pipe groove 11 is rounded corner arrangement, ensure the effect of cold bending pipe bending, avoid the damage situation when cold bending pipe bending.

[0027] Specifically, as Figure 3As shown, one end of the fixed die 9 is provided with a positioning assembly 14, which includes an adjusting screw 15 threadedly connected to the fixed die 9 and extending into the positioning groove 13, the inner end of the adjusting screw 15 is connected with a positioning plate 16 through a bearing, and the outer end of the adjusting screw 15 is provided with a rotating wheel, which drives the adjusting screw 15 to rotate. The adjusting screw 15 is threadedly connected with the fixed die 9, so that the position of the positioning plate 16 in the positioning groove 13 can be adjusted, thereby the bending length of the pipe body can be adjusted according to the bending length of the pipe body, and the applicability is improved.

[0028] As shown in the drawings, the movable bending die 6 includes a movable die 17, and the side of the movable die 17 is provided with a second bending pipe groove 18 corresponding to the first bending pipe groove 11, so that the pipe body can be accommodated, and the situation that the pipe body is flattened during bending is avoided.

[0029] Specifically, as shown in the drawings, Figure 1 , Figure 2 and Figure 5 , the first easy disassembly assembly 3 includes a positioning back plate 19 arranged at the top end of the processing table 1, and a plurality of positioning columns 20 are arranged on the positioning back plate 19. The side of the fixed die 9 is provided with a positioning groove 21 matched with the positioning column 20. The two end portions of the fixed die 9 are provided with plug-in strip plates 22, and the processing table 1 is provided with plug-in strip grooves 23 matched with the plug-in strip plates 22. The plug-in strip plates 22 are provided with first spring plungers 24, and the processing table 1 is provided with first limiting holes communicated with the plug-in strip grooves 23 and matched with the pin rods of the first spring plungers 24. When the fixed bending die 4 of different special shapes is replaced, the pin rod of the first spring plunger 24 is separated from the first limiting hole, and then the plug-in connecting plate 22 is separated from the plug-in strip groove 23, so that the fixed bending die 4 of different special shapes can be disassembled and replaced.

[0030] Specifically, as shown in the drawings, Figure 6 , the second easy disassembly assembly 8 includes a connecting plate 25 arranged on the back of the movable die 17, and the rotating strip plate 5 is provided with a connecting groove 26 matched with the connecting plate 25. The connecting plate 25 is embedded with a second spring plunger 27, and the connecting plate 25 is provided with a second limiting hole matched with the pin rod of the second spring plunger 27. When the movable bending die 6 of different special shapes is replaced, the pin rod of the second spring plunger 27 is separated from the second limiting hole, and then the connecting plate 25 is separated from the connecting groove 26, so that the movable bending die 6 of different special shapes can be disassembled and replaced.

[0031] Specifically, as shown in the drawings, Figure 1 , the driving assembly 7 includes a hydraulic cylinder 28 mounted at the top end of the processing table 1. The output shaft of the hydraulic cylinder 28 is connected with a connecting rod 29 connected with the rotating strip plate 5 through a rotating shaft. The output shaft of the hydraulic cylinder 28 drives the connecting rod 29 to move, and the connecting rod 29 drives the rotating strip plate 5 to rotate through the rotating shaft, so that the bending action can be completed.

[0032] In work, the special-shaped cold-bent pipe clamping device can disassemble and assemble the fixed bending die 4 through the first dismounting assembly 3, and can disassemble and assemble the movable bending die 6 through the second dismounting assembly 8, so that different special-shaped pipe bending processing dies can be replaced, the applicability of the cold-bent pipe processing is improved, in processing, the pipe body is inserted into the inside of the positioning groove 13 from the pipe penetrating hole 12, the clamping screw rod 31 is rotated, the clamping screw rod 31 is threadedly connected with the fixed die 9, the arc-shaped clamping top block 33 is moved and cooperates with the positioning groove 13 to tightly fix and clamp the pipe body, the situation that the pipe body head moves to affect the bending size when the pipe body is bent under stress can be avoided, the precision of the special-shaped cold-bent pipe bending is ensured, the rotating strip plate 5 is driven to rotate through the rotating shaft by the driving assembly 7, the movable bending die 6 is driven to move by the rotating strip plate 5, so that the movable bending die 6 cooperates with the fixed bending die 4 to bend the pipe body.

[0033] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A profiled cold-bent pipe clamping device comprising a processing table (1), characterized in that, The top end of the processing table (1) is provided with a pipe bending mechanism (2) for bending the pipe body, the pipe bending mechanism (2) comprises a fixed bending die (4) connected to the top end of the processing table (1) through a first detachable assembly (3) and a rotating strip plate (5) connected to the top end of the processing table (1) through a rotating shaft, the top end of the rotating strip plate (5) is provided with a movable bending die (6) matched with the fixed bending die (4), the top end of the processing table (1) is provided with a driving assembly (7) for driving the movable bending die (6) to rotate through the rotating shaft, and the movable bending die (6) is installed on the rotating strip plate (5) through a second detachable assembly (8). The fixed bending die (4) comprises a fixed die (9), one side of the fixed die (9) is provided with a bending cavity (10), the inner wall of the bending cavity (10) is provided with a first bending pipe groove (11), one end of the fixed die (9) is provided with a pipe penetrating hole (12) in communication with the first bending pipe groove (11), and the inner wall of the first bending pipe groove (11) is provided with a positioning groove (13) corresponding to the pipe penetrating hole (12) and used for positioning the pipe body. The fixed die (9) is provided with a clamping assembly for clamping the pipe body, the clamping assembly comprises a rectangular groove (30) threadedly connected to one side of the fixed die (9), a clamping screw (31) threadedly connected to the inside of the rectangular groove (30), a receiving groove (32) formed in the inner wall of the positioning groove (13), and an arc-shaped clamping top block (33) matched with the receiving groove (32) and connected to the inner end of the clamping screw (31) through a bearing.

2. A cold roll tube clamping device according to claim 1, wherein The end portions of the pipe penetrating hole (12) and the positioning groove (13) are both rounded, and the corners of the first bending pipe groove (11) are rounded.

3. A cold roll tube clamping device according to claim 1, wherein One end of the fixed die (9) is provided with a positioning assembly (14), the positioning assembly (14) comprises an adjusting screw (15) threadedly connected to the fixed die (9) and extending into the positioning groove (13), a positioning plate (16) connected to the inner end of the adjusting screw (15) through a bearing, and a rotating wheel arranged at the outer end of the adjusting screw (15).

4. A cold roll tube clamping device according to claim 1, wherein The movable bending die (6) comprises a movable die (17), and the side of the movable die (17) is provided with a second bending pipe groove (18) corresponding to the first bending pipe groove (11).

5. A cold roll tube clamping device according to claim 1, wherein The first detachable assembly (3) comprises a positioning back plate (19) arranged at the top end of the processing table (1), a plurality of positioning columns (20) arranged on the positioning back plate (19), and a positioning groove (21) arranged on the side of the fixed die (9) and matched with the positioning columns (20).

6. A profiled cold-bent pipe clamping device according to claim 5, characterized in that Both end portions of the fixed die (9) are provided with an insertion strip plate (22), the processing table (1) is provided with an insertion strip groove (23) matched with the insertion strip plate (22), the insertion strip plate (22) is provided with a first spring bolt (24), and the processing table (1) is provided with a first limiting hole in communication with the insertion strip groove (23) and matched with the pin rod of the first spring bolt (24).

7. A profiled cold-bent pipe clamping device according to claim 6, characterized in that The second detachable assembly (8) comprises a connecting plate (25) arranged on the back of the movable die (17), the rotating strip plate (5) is provided with a connecting groove (26) matched with the connecting plate (25), the second spring bolt (27) is embedded on the connecting plate (25), and the connecting plate (25) is provided with a second limiting hole matched with the pin rod of the second spring bolt (27).

8. A cold roll tube clamping device according to claim 1, wherein The driving assembly (7) comprises a hydraulic cylinder (28) mounted at the top end of the machining table (1), and the output shaft of the hydraulic cylinder (28) is connected with the connecting rod (29) connected with the rotating strip plate (5) through the rotating shaft.

Images