Left-right servo-driven pipe bending device

Abstract

The utility model provides a left-right servo-driven pipe bending device, which relates to the technical field of pipe processing equipment, and comprises a processing platform, and the processing platform is provided with a first servo-driven ball screw assembly and a profiling assembly which is arranged on the processing platform in a sliding manner; a rotary forming unit is arranged on the machining platform, the rotary forming unit comprises a main shaft rotationally mounted on the machining platform, and a replaceable pipe bending mold assembly is coaxially assembled on the main shaft; the first servo driving ball screw assembly drives the profiling assembly to move to be cooperatively positioned with the rotary forming unit, and left / right bidirectional bending forming of the pipe is completed. The bidirectional pipe bending machine has the advantages that the movable profiling assembly is arranged to be cooperatively positioned with the replaceable pipe bending die assembly driven by the rotary forming unit and the clamping assembly, so that the pipe can be bent and formed in the left / right direction, the structure is compact, and the efficiency is high. The manufacturing and maintenance cost of the equipment is obviously reduced; and the equipment realizes the function of bending the pipe left and right at one time.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe processing equipment technical field especially a left and right servo drive's pipe bending device. BACKGROUND

[0002] Pipe bending device is widely used in air conditioning, automobile, ship, aerospace and other industrial fields, mainly including rack, control unit and feeding trolley controlled by control unit, guide die unit and machine head installed on the rack, round die for controlling pipe bending radius, swing arm and die holder installed on the swing arm for clamping pipe with the round die. According to the different bending direction, it is divided into left bending type pipe bending machine, right bending type pipe bending machine and left and right common bending type pipe bending machine, and the left and right common bending type pipe bending machine is often used for bending operation of complex pipe.

[0003] The authorized announcement number CN207357850U discloses a left and right common bending type numerical control pipe bending machine, wherein the description about the pipe bending part is that the pipe bending device includes machine head, guide die unit and die changing unit; the machine head includes mounting seat and left pipe bending unit and right pipe bending unit installed on the mounting seat, the pipe bending unit includes round die, swing arm, pipe bending driver and die holder installed on the swing arm, the main concept of the machine is that the left pipe bending unit and the right pipe bending unit are driven by the die changing unit to move in two dimensions in the plane perpendicular to the pipe axis to realize the switching of left and right pipe bending modes.

[0004] Therefore, although the numerical control pipe bending machine solves the multi-direction bending requirement, it has the technical limitations of high mechanical complexity, large space occupation and significant manufacturing cost increment, which restricts the popularization and application of the equipment. UTILITY MODEL CONTENT

[0005] The utility model overcomes the shortcomings in the prior art, provides a left and right servo drive's pipe bending device, has the purposes of compact structure and reducing equipment manufacturing cost.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical schemes:

[0007] A left and right servo drive's pipe bending device, including processing platform, first servo drive ball screw assembly and slide setting are arranged on the processing platform with the die assembly, first servo drive ball screw assembly drives the die assembly to slide along the X axis horizontally;

[0008] The machining platform is provided with a rotary forming unit, the rotary forming unit comprises a main shaft rotatably installed on the machining platform, and a replaceable elbow mold assembly is coaxially arranged on the main shaft; a clamping frame is further connected to the main shaft, a base plate assembly and a second servo-driven ball screw assembly are slidably arranged on the clamping frame, and a clamping assembly is arranged on the base plate assembly; the second servo-driven ball screw assembly drives the base plate assembly to move to realize the approach or separation of the clamping assembly and the replaceable elbow mold assembly.

[0009] The first servo-driven ball screw assembly drives the approach or separation of the clamping assembly and the replaceable elbow mold assembly.

[0010] Further, the clamping assembly comprises a main seat, a third servo-driven ball screw assembly is arranged on the main seat, and an outer sleeve is slidably arranged on the main seat; a clamping groove for left / right elbow pipe is arranged on both sides of the outer sleeve.

[0011] Further, a sleeve is connected to the outer sleeve; a screw rod and a screw nut of the third servo-driven ball screw assembly are located in the sleeve, and the screw nut is connected to the sleeve; the third servo-driven ball screw assembly drives the approach or separation of the clamping groove and the replaceable elbow mold assembly.

[0012] Further, the rotary forming unit comprises a servo motor arranged on the machining platform, the servo motor is connected to a driving sprocket, a driven sprocket is arranged on the main shaft, the driving sprocket is connected to the driven sprocket through a chain, and the servo motor drives the replaceable elbow mold assembly and the clamping frame to rotate together.

[0013] Further, the replaceable elbow mold assembly comprises at least two groups of stacked forming wheel molds; the clamping assembly is correspondingly provided with a stacked mold clamp, and the forming wheel mold and the mold clamp are used correspondingly.

[0014] Further, the base plate assembly comprises a base plate and a surface plate, the surface plate is slidably connected to the base plate, the sliding direction of the surface plate is perpendicular to the moving direction of the base plate assembly as a whole, and the clamping assembly is arranged on the surface plate.

[0015] Further, a fixed horizontal plate is arranged on the fixed vertical plate, and a fourth servo-driven ball screw assembly is arranged on the fixed horizontal plate; the machining platform is slidably connected to the fixed horizontal plate, and the fourth servo-driven ball screw assembly drives the machining platform to move horizontally along the X-axis on the fixed horizontal plate.

[0016] Further, a fixed vertical plate is arranged on the fixed horizontal plate, and a fifth servo-driven ball screw assembly is arranged on the fixed vertical plate; the fixed horizontal plate is slidably connected to the fixed vertical plate, and the fifth servo-driven ball screw assembly drives the fixed horizontal plate to move up and down along the Z-axis on the fixed vertical plate.

[0017] Further, the X-axis and the Z-axis are orthogonal and perpendicular to the pipe feeding direction.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a movable mode's rely on mould subassembly is set to with the rotary forming unit drive's replaceable elbow mould subassembly and clamping subassembly coordinate positioning to right / left two -way bending forming of pipe material can be completed to compact structure, the equipment manufacturing and maintenance cost of remarkable reduction. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the utility model, together with embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model, in the drawings:

[0021] Figure 1 It is the general view of the servo drive's elbow device of left and right direction;

[0022] Figure 2 It is the side view of the servo drive's elbow device of left and right direction;

[0023] Figure 3 It is the three -dimensional of processing platform, rely on mould subassembly, rotary forming unit Figure 1 ;

[0024] Figure 4 It is the three -dimensional of processing platform, rely on mould subassembly, rotary forming unit Figure 2 ;

[0025] Figure 5 It is the schematic diagram of replaceable elbow mould subassembly and clamping subassembly close state;

[0026] Figure 6 It is the schematic diagram of clamping subassembly;

[0027] Figure 7 It is the schematic diagram of replaceable elbow mould subassembly;

[0028] Figure 8 It is the schematic diagram of rely on mould subassembly;

[0029] Figure 9 It is the explosion drawing of rely on mould subassembly.

[0030] In the drawings:

[0031] 1, processing platform;

[0032] 2, first servo drive ball screw subassembly;

[0033] 3, rely on mould subassembly;301, main seat;302, third servo drive ball screw subassembly;3021, screw;3022, screw nut;303, outer cover;304, rely on mould groove spare;305, sleeve;

[0034] 4. rotation forming unit; 401. servo motor; 402. driving sprocket; 403. driven sprocket;

[0035] 5. main shaft;

[0036] 6. replaceable elbow die assembly; 601. forming wheel die;

[0037] 7. clamping frame;

[0038] 8. base plate assembly; 801. base plate; 802. surface plate;

[0039] 9. second servo drive ball screw assembly;

[0040] 10. clamping assembly; 1001. clamping die;

[0041] 11. fixed horizontal plate; 12. fourth servo drive ball screw assembly; 13. fixed vertical plate; 14. fifth servo drive ball screw assembly. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0043] As shown in Figures 1 to 9 The present application protects a left and right servo driven elbow device, which comprises a processing platform 1, and further comprises a fixed horizontal plate 11 and a fixed vertical plate 13, the fixed horizontal plate 11 is provided with a fourth servo drive ball screw assembly 12; the processing platform 1 is slidingly connected to the fixed horizontal plate 11, and the fourth servo drive ball screw assembly 12 drives the processing platform 1 to move horizontally along the X axis on the fixed horizontal plate 11; the fixed vertical plate 13 is provided with a fifth servo drive ball screw assembly 14; the fixed horizontal plate 11 is slidingly connected to the fixed vertical plate 13, and the fifth servo drive ball screw assembly 14 drives the fixed horizontal plate 11 to move vertically along the Z axis on the fixed vertical plate 13; and the X axis and the Z axis are orthogonal and both are perpendicular to the pipe feeding direction.

[0044] The fixed vertical plate 13 is used to fix the elbow device on an external machine, that is, the fourth servo drive ball screw assembly 12 and the fifth servo drive ball screw assembly 14 can control the two-dimensional movement of the processing platform 1 in the X axis and Z axis directions.

[0045] The processing platform 1 is provided with a first servo drive ball screw assembly 2 and a slidingly arranged die assembly 3, and the first servo drive ball screw assembly 2 drives the die assembly 3 to slide horizontally along the X axis;

[0046] The machining platform 1 is provided with a rotary forming unit 4, the rotary forming unit 4 comprises a main shaft 5 rotatably installed on the machining platform 1, a replaceable elbow mold assembly 6 coaxially assembled on the main shaft 5, and a clamping frame 7 connected to the main shaft 5. The rotary forming unit 4 comprises a servo motor 401 arranged on the machining platform 1, the servo motor 401 is connected with a driving sprocket 402, a driven sprocket 403 is arranged on the main shaft 5, the driving sprocket 402 is connected with the driven sprocket 403 through a chain, and the servo motor 401 drives the replaceable elbow mold assembly 6 and the clamping frame 7 to rotate together. The above rotation is to clamp the pipe and then perform bending, so that the pipe can be bent.

[0047] Specifically, a base plate assembly 8 and a second servo-driven ball screw assembly 9 are slidably arranged on the clamping frame 7, the base plate assembly 8 is provided with a clamping assembly 10; the second servo-driven ball screw assembly 9 drives the base plate assembly 8 to move to realize that the clamping assembly 10 is close to or away from the replaceable elbow mold assembly 6; the clamping assembly 10 is close to the replaceable elbow mold assembly 6, that is, the pipe is clamped, the servo motor 401 controls the replaceable elbow mold assembly 6 and the clamping frame 7 to rotate together, so that the pipe can be bent; after the pipe is bent, the clamping assembly 10 is away from the replaceable elbow mold assembly 6, the pipe is loosened, the servo motor 401 controls the replaceable elbow mold assembly 6 and the clamping frame 7 to rotate to reset, and the next bending is waited.

[0048] In the embodiment, the replaceable elbow mold assembly 6 comprises at least two groups of laminated forming wheel molds 601; the clamping assembly 10 is correspondingly provided with laminated mold clamps 1001, and the forming wheel molds 601 and the mold clamps 1001 are used correspondingly.

[0049] The profile assembly 3 comprises a main seat 301, a third servo-driven ball screw assembly 302 arranged on the main seat 301, and an outer sleeve 303 slidably arranged on the main seat 301, both sides of the outer sleeve 303 are provided with profile grooves 304 for left / right bending; the profile assembly 3 further comprises a sleeve 305 connected with the outer sleeve 303; a screw rod 3021 and a screw nut 3022 of the third servo-driven ball screw assembly 302 are located in the sleeve 305, and the screw nut 3022 is connected with the sleeve 305; that is, the screw rod 3021 and the screw nut 3022 are hidden in the sleeve 305, so that the occupied space is saved; as known from the above principle, the screw rod 3021 rotates to control the sleeve 305 to move together with the outer sleeve 303 through the action of the screw nut 3022, so as to drive the profile grooves 304 to be close to or away from the replaceable elbow mold assembly 6.

[0050] The profiled groove member 304 is arranged along the length direction of the pipe, and the pipe is bent by positioning the profiled groove member 304, the replaceable bending die assembly 6 and the clamping assembly 10, the replaceable bending die assembly 6 and the clamping assembly 10 rotate after clamping and positioning the pipe, and the profiled groove member 304 of the profiled assembly 3 limits the tail end of the pipe to rotate, so that the pipe clamping section in the replaceable bending die assembly 6 and the clamping assembly 10 can be bent.

[0051] As shown in the drawings, the profiled groove member 304 is arranged on both sides of the profiled groove member 304, and can slide on the machining platform 1 to cooperate with the replaceable bending die assembly 6 and the clamping assembly 10 on the rotary forming unit 4 to position, so as to meet the left or right bending forming of the pipe.

[0052] The base plate assembly 8 includes a base plate 801 and a surface plate 802, the surface plate 802 is slidably connected to the base plate 801, and the sliding direction is perpendicular to the moving direction of the base plate assembly 8 as a whole, and the clamping assembly 10 is located on the surface plate 802, which is conducive to the sliding adjustment of the die clamp 1001 on the clamping assembly 10 and the alignment with the forming wheel die 601 on the replaceable bending die assembly 6, and improves the clamping and fixing effect of the pipe.

[0053] The above-mentioned servo-driven ball screw assembly includes a servo motor, a lead screw directly or indirectly driven by the servo motor, and a lead screw nut matched with the lead screw; the lead screw nut is fixed on the corresponding sliding part. The component composition and principle of the above-mentioned servo-driven ball screw assembly are prior art, which will not be repeated here.

[0054] The application sets a movable profiled assembly to cooperate with the replaceable bending die assembly 6 and the clamping assembly 10 driven by the rotary forming unit 4 to position, so as to complete the left / right bidirectional bending forming of the pipe, and the structure is compact, which significantly reduces the manufacturing and maintenance cost of the equipment.

[0055] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the embodiments, for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A left-right direction servo-driven pipe bending device, characterized in that, comprising a machining platform (1), a first servo-driven ball screw assembly (2) and a slide-mounted die assembly (3) are arranged on the machining platform (1), the first servo-driven ball screw assembly (2) drives the die assembly (3) to slide along the X-axis; a rotary forming unit (4) is arranged on the machining platform (1), the rotary forming unit (4) comprises a main shaft (5) rotatably mounted on the machining platform (1), a replaceable pipe bending die assembly (6) is coaxially arranged on the main shaft (5); a clamping frame (7) is further connected to the main shaft (5), a base plate assembly (8) and a second servo-driven ball screw assembly (9) are slidably arranged on the clamping frame (7), a clamping assembly (10) is arranged on the base plate assembly (8); the second servo-driven ball screw assembly (9) drives the base plate assembly (8) to move to realize the approach or separation of the clamping assembly (10) and the replaceable pipe bending die assembly (6); the first servo-driven ball screw assembly (2) drives the die assembly (3) to move cooperatively with the rotary forming unit (4) to complete the left / right bidirectional bending forming of the pipe.

2. The left-right servo-driven elbow apparatus according to claim 1, wherein The die assembly (3) comprises a main seat (301), a third servo-driven ball screw assembly (302) is arranged on the main seat (301), and an outer sleeve (303) is slidably arranged on the main seat (301), both sides of the outer sleeve (303) are provided with die grooves (304) for left / right pipe bending; a sleeve (305) is further connected with the outer sleeve (303); a lead screw (3021) and a lead screw nut (3022) of the third servo-driven ball screw assembly (302) are located in the sleeve (305), the lead screw nut (3022) is connected with the sleeve (305); the third servo-driven ball screw assembly (302) drives the die grooves (304) to approach or separate from the replaceable pipe bending die assembly (6).

3. The left-right servo-driven elbow apparatus according to claim 1, wherein The rotary forming unit (4) comprises a servo motor (401) arranged on the machining platform (1), the servo motor (401) is connected with a driving sprocket (402), a driven sprocket (403) is arranged on the main shaft (5), the driving sprocket (402) is connected with the driven sprocket (403) through a chain, and the servo motor (401) drives the replaceable pipe bending die assembly (6) and the clamping frame (7) to rotate together.

4. The left-right servo-driven elbow apparatus according to claim 1, wherein The replaceable pipe bending die assembly (6) comprises at least two groups of laminated forming wheel dies (601); the clamping assembly (10) is correspondingly provided with laminated clamping dies (1001), and the forming wheel dies (601) and the clamping dies (1001) are used correspondingly.

5. The left-right servo-driven elbow apparatus according to claim 1, wherein The base plate assembly (8) comprises a base plate (801) and a surface plate (802), the surface plate (802) is slidably connected to the base plate (801), and the sliding direction of the surface plate (802) is perpendicular to the moving direction of the base plate assembly (8) as a whole, and the clamping assembly (10) is located on the surface plate (802).

6. The left-right servo-driven elbow apparatus according to claim 1, wherein The fixed horizontal plate (11) is provided with a fourth servo-driven ball screw assembly (12); the machining platform (1) is slidingly connected to the fixed horizontal plate (11), and the fourth servo-driven ball screw assembly (12) drives the machining platform (1) to move horizontally along the X axis on the fixed horizontal plate (11).

7. The left-right servo-driven elbow apparatus according to claim 6, wherein The fixed vertical plate (13) is provided with a fifth servo-driven ball screw assembly (14); the fixed horizontal plate (11) is slidingly connected to the fixed vertical plate (13), and the fifth servo-driven ball screw assembly (14) drives the fixed horizontal plate (11) to move vertically along the Z axis on the fixed vertical plate (13).

8. The left-right servo-driven elbow apparatus according to claim 7, wherein The X axis and the Z axis are orthogonal and both are perpendicular to the pipe feeding direction.

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