Pipe fitting clamping assembly of numerical control pipe bending machine

Abstract

The utility model discloses a pipe fitting clamping assembly of a numerical control pipe bending machine, which comprises a workbench and a fixing mechanism, and belongs to the technical field of pipe bending machines. According to the pipe bending device, the electric telescopic rod is started to drive the clamping plate to clamp and fix a pipe fitting, and then the hand wheel is screwed by related personnel, so that the supporting frame A drives the clamped pipe fitting to move towards one end close to the pipe bending mold along the reciprocating lead screw; then an electric hydraulic cylinder drives a limiting mold connected with a mounting plate to limit one end of the pipe between the pipe bending mold and the limiting mold, a motor B drives the limiting mold to abut against the pipe to bend the pipe along the pipe bending mold, the pipe is conveyed again through a moving assembly, a motor A is started, the bent pipe rotates, and then the pipe is bent. And then the pipe fitting is bent again under the action of the pipe bending assembly and the driving assembly, and the purpose of changing the bending direction of the clamped pipe fitting is achieved through the arrangement of the fixing mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe bending machines, and in particular relates to a pipe clamping component of a numerically controlled pipe bending machine. Background Art

[0002] The pipe bender is a device used to bend pipe fittings. It can achieve continuous bending of pipe fittings and has flexible shapes. Therefore, it is widely used. When the pipe bender is working, the pipe to be processed needs to be fixed by a clamping device and continuously pushed forward so that the processing area of ​​the pipe fitting reaches the position of the pipe bender head, and the pipe bender head performs the bending operation.

[0003] A patent with patent number CN215902594U discloses a CNC pipe bending machine that is convenient for clamping and fixing pipe fittings, including a base, a pushing mechanism for driving the pipe fitting to move is fixed on the left side of the upper end of the base, a fixing sleeve for bending the pipe fitting is provided on the right side of the upper end of the base, and also includes a clamping assembly and a guide assembly. The clamping assembly is used to clamp and fix the pipe fitting. The clamping assembly is located at the right end of the pushing mechanism, and the clamping assembly is fixedly connected to the output end of the pushing mechanism. The guide assembly is used to guide the pushing mechanism, and the guide assembly is located on both sides of the pushing mechanism.

[0004] However, the CNC pipe bending machine in the above patent, which is convenient for clamping and fixing pipe fittings, still has certain problems during use. It is not convenient to arbitrarily change the bending direction of the clamped pipe fittings. Therefore, a pipe clamping assembly of a CNC pipe bending machine is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pipe clamping assembly for a CNC pipe bending machine, which solves the above problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: A pipe clamping assembly for a CNC pipe bending machine includes a workbench for support, and also includes:

[0007] A fixing mechanism, the fixing mechanism includes a motor A, a connecting disk, a support frame A, a support frame B, a cylinder A, a cylinder B and a clamping assembly, the support frame A and the support frame B, the cylinder A and the cylinder B are set to the same shape, the support frame B is fixedly connected to one end of the workbench, the support frame A and the support frame B are connected through a moving assembly, the support frame A is slidably connected to the upper surface of the workbench, the motor A is fixedly connected to the side of the support frame A away from the support frame B, the middle part of the connecting disk is fixedly connected to the output shaft of the motor A, the cylinder A and the cylinder B respectively penetrate the support frame A and the support frame B, and are rotatably connected to the support frame A and the support frame B, the connecting disk is fixedly connected to one end of the cylinder A, and the clamping assembly is provided with two groups, and are connected to the cylinder A and the cylinder B respectively.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] Further technical solution: The clamping assembly includes an electric telescopic rod and a clamping plate. There are three electric telescopic rods and they are distributed in a ring shape. The three electric telescopic rods respectively pass through the middle of cylinder A and are fixedly connected to cylinder A. There are three clamping plates and they are distributed in a ring shape inside cylinder A. The inner sides of the three clamping plates are all arranged in an arc shape. The three clamping plates are respectively fixedly connected to one end of the output shafts of the three electric telescopic rods.

[0010] Further technical solution: A pipe bending assembly is provided at one end of the workbench close to the cylinder B, and the pipe bending assembly includes a support box, a pipe bending mold, a limit mold and a mounting plate. The support box is fixedly connected to one side of the workbench, and the pipe bending mold is detachably connected to the top of the support box by bolts. The limit mold is provided on one side of the pipe bending mold, and the limit mold is detachably installed on the top of the mounting plate by bolts. The mounting plate is connected to the support box through a driving assembly.

[0011] Further technical solution: The driving assembly includes a motor B, a connecting rod and an electric hydraulic cylinder. The motor B is fixedly installed inside the support box. One end of the connecting rod is fixedly connected to the output shaft of the motor B. The connecting rod is L-shaped. The two ends of the electric hydraulic cylinder are respectively fixedly connected to the connecting rod and one end of the bottom of the mounting plate. The axis of the output shaft of the motor B corresponds to the axis of the pipe bending mold.

[0012] Further technical solution: The moving component includes a sliding rod and a reciprocating screw, which respectively pass through the two sides of the bottom of the support frame A, the sliding rod is slidably connected to the support frame A, the reciprocating screw is threadedly connected to the support frame A, the sliding rod passes through one end of the support frame A and is fixedly connected to the support frame B, and the reciprocating screw passes through one end of the support frame A and is rotatably connected to the support frame B.

[0013] Further technical solution: a handwheel is fixedly connected to one end of the reciprocating screw away from the support frame B, and anti-slip rubber pads are fixedly connected to the surfaces of the three clamping plates on the inner side of the cylinder A that contact the pipe fittings.

[0014] Beneficial Effects

[0015] The utility model provides a pipe clamping assembly for a CNC pipe bending machine. Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Pass the pipe to be processed through cylinder B and extend it into cylinder A, and make the end of the pipe contact with the connecting plate, then start the electric telescopic rod to drive the clamping plate to clamp and fix the pipe, and then the relevant personnel turn the hand wheel to make the support frame A drive the clamped pipe to move along the reciprocating screw to one end close to the pipe bending mold, and then the electric hydraulic cylinder drives the limit mold connected to the mounting plate to limit one end of the pipe between the pipe bending mold and the limit mold, and the motor B drives the limit mold to resist the pipe along the pipe bending mold to bend, and the pipe is re-transmitted by the moving component, and the bent pipe is rotated by starting the motor A, and then the pipe is re-bent by the action of the pipe bending component and the driving component, so as to achieve the purpose of changing the bending direction of the clamped pipe through the setting of the fixing mechanism;

[0017] 2. By rotating the reciprocating screw, the reciprocating screw is driven to move toward one end close to the pipe bending die, so as to convey the pipe fittings and facilitate continuous bending of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a three-dimensional diagram of the utility model.

[0020] Figure 3 It is a partial cross-sectional view of the utility model.

[0021] Figure 4 It is a front view of the utility model.

[0022] Notes on the accompanying drawings: 1. Workbench; 2. Fixing mechanism; 3. Motor A; 4. Connecting plate; 5. Support frame A; 6. Support frame B; 7. Cylinder A; 8. Cylinder B; 9. Electric telescopic rod; 10. Clamping plate; 11. Support box; 12. Pipe bending mold; 13. Limiting mold; 14. Mounting plate; 15. Motor B; 16. Connecting rod; 17. Electric hydraulic cylinder; 18. Sliding rod; 19. Reciprocating screw. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] See also Figures 1 to 4 , provided in one embodiment of the utility model, is a pipe clamping assembly for a CNC pipe bending machine, comprising a workbench 1 for supporting, and also comprising:

[0026] The fixing mechanism 2 includes a motor A3, a connecting disk 4, a support frame A5, a support frame B6, a cylinder A7, a cylinder B8 and a clamping assembly. The support frame A5 and the support frame B6, the cylinder A7 and the cylinder B8 are set to the same shape. The support frame B6 is fixedly connected to one end of the workbench 1. The support frame A5 and the support frame B6 are connected through a moving assembly. The support frame A5 is slidably connected to the upper surface of the workbench 1. The motor A3 is fixedly connected to the side of the support frame A5 away from the support frame B6. The middle part of the connecting disk 4 is fixedly connected to the output shaft of the motor A3. The cylinder A7 and the cylinder B8 respectively penetrate the support frame A5 and the support frame B6, and are rotatably connected to the support frame A5 and the support frame B6. The connecting disk 4 is fixedly connected to one end of the cylinder A7. There are two groups of clamping assemblies, which are respectively connected to the cylinder A7 and the cylinder B8.

[0027] Preferably, the clamping assembly includes an electric telescopic rod 9 and a clamping plate 10. Three electric telescopic rods 9 are provided and distributed in an annular manner. The three electric telescopic rods 9 pass through the middle of the cylinder A7 respectively and are fixedly connected to the cylinder A7. Three clamping plates 10 are provided and are distributed in an annular manner inside the cylinder A7. The inner sides of the three clamping plates 10 are all arranged in an arc shape. The three clamping plates 10 are respectively fixedly connected to one end of the output shaft of the three electric telescopic rods 9. The purpose of this arrangement is to achieve the purpose of firmly clamping the pipe fitting by driving the three clamping plates 10 through the three electric telescopic rods 9.

[0028] Preferably, a pipe bending assembly is provided at one end of the workbench 1 close to the cylinder B8, and the pipe bending assembly includes a support box 11, a pipe bending die 12, a limit die 13 and a mounting plate 14. The support box 11 is fixedly connected to one side of the workbench 1, and the pipe bending die 12 is detachably connected to the top of the support box 11 by bolts. The limit die 13 is provided on one side of the pipe bending die 12, and the limit die 13 is detachably installed on the top of the mounting plate 14 by bolts, and the mounting plate 14 is connected to the support box 11 through a driving assembly. The purpose of this arrangement is to facilitate the applicability replacement of the pipe bending die 12 and the limit die 13, so as to facilitate the bending of the pipe fittings into different shapes by the pipe bending die 12 and the limit die 13.

[0029] Preferably, the driving assembly includes a motor B15, a connecting rod 16 and an electric hydraulic cylinder 17. The motor B15 is fixedly installed inside the support box 11. One end of the connecting rod 16 is fixedly connected to the output shaft of the motor B15. The connecting rod 16 is arranged in an L shape. The two ends of the electric hydraulic cylinder 17 are respectively fixedly connected to the connecting rod 16 and one end of the bottom of the mounting plate 14. The axis of the output shaft of the motor B15 corresponds to the axis of the pipe bending mold 12. The purpose of this arrangement is to realize that the motor B15 drives the mounting plate 14 to drive the limit mold 13 to rotate along the outer side of the pipe bending mold 12, so as to achieve the purpose of driving the pipe fitting to bend through the limit mold 13.

[0030] In the embodiment of the utility model, the pipe to be processed is extended through the cylinder B8 to the inside of the cylinder A7, and the end of the pipe is brought into contact with the connecting plate 4, and then the electric telescopic rod 9 is started to drive the clamping plate 10 to clamp and fix the pipe, and then the relevant personnel twist the hand wheel to drive the clamped pipe to move along the reciprocating screw 19 to one end close to the pipe bending mold 12, and then the electric hydraulic cylinder 17 drives the limiting mold 13 connected to the mounting plate 14 to limit one end of the pipe between the pipe bending mold 12 and the limiting mold 13, and the motor B15 drives the limiting mold 13 to resist the pipe along the pipe bending mold 12 to bend, and the pipe is re-transmitted by the moving assembly, and the bent pipe is rotated by starting the motor A3, and then the pipe is re-bent by the action of the pipe bending assembly and the driving assembly, so as to achieve the purpose of changing the bending direction of the clamped pipe through the setting of the fixing mechanism 2.

[0031] See also Figures 1 to 4 As an embodiment of the utility model, the moving assembly includes a sliding rod 18 and a reciprocating screw 19, the sliding rod 18 and the reciprocating screw 19 respectively pass through the two sides of the bottom of the support frame A5, the sliding rod 18 is slidably connected to the support frame A5, the reciprocating screw 19 is threadedly connected to the support frame A5, the sliding rod 18 passes through one end of the support frame A5 and is fixedly connected to the support frame B6, and the reciprocating screw 19 passes through one end of the support frame A5 and is rotatably connected to the support frame B6.

[0032] Preferably, a hand wheel is fixedly connected to one end of the reciprocating screw 19 away from the support frame B6, and non-slip rubber pads are fixedly connected to the surfaces of the three clamping plates 10 on the inner side of the cylinder A7 that contact the pipe fittings. The purpose of this arrangement is to facilitate the rotation of the reciprocating screw 19 through the hand wheel, and to enhance the stability of the clamping of the pipe fittings at the cylinder A7 through the arrangement of the non-slip rubber pads on the three clamping plates 10 on the inner side of the cylinder A7, so as to facilitate the purpose of driving the pipe fittings for transmission and rotation.

[0033] In the embodiment of the utility model, the reciprocating screw 19 is rotated to drive the reciprocating screw 19 to move toward one end close to the tube bending die 12, so as to achieve the purpose of conveying the tube and facilitating continuous bending of the tube.

[0034] 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.

[0035] 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.

Claims

1. A pipe clamping assembly for a CNC pipe bending machine, comprising a workbench (1) for supporting, It is characterized in that Also includes: The fixing mechanism (2) comprises a motor A (3), a connecting plate (4), a support frame A (5), a support frame B (6), a cylinder A (7), a cylinder B (8) and a clamping assembly. The support frame A (5) and the support frame B (6), the cylinder A (7) and the cylinder B (8) are configured to have the same shape. The support frame B (6) is fixedly connected to one end of the workbench (1). The support frame A (5) and the support frame B (6) are connected via a moving assembly. The support frame A (5) and the workbench (1) are arranged on a surface The motor A (3) is fixedly connected to the side of the support frame A (5) away from the support frame B (6); the middle part of the connecting disk (4) is fixedly connected to the output shaft of the motor A (3); the cylinder A (7) and the cylinder B (8) respectively penetrate the support frame A (5) and the support frame B (6), and are rotatably connected to the support frame A (5) and the support frame B (6); the connecting disk (4) is fixedly connected to one end of the cylinder A (7); and the clamping assembly is provided with two groups, which are respectively connected to the cylinder A (7) and the cylinder B (8).

2. A pipe clamping assembly for a CNC pipe bender according to claim 1, It is characterized in that The clamping assembly comprises an electric telescopic rod (9) and a clamping plate (10). The electric telescopic rods (9) are provided in three numbers and are distributed in an annular manner. The three electric telescopic rods (9) respectively pass through the middle of the cylinder A (7) and are fixedly connected to the cylinder A (7). The clamping plates (10) are provided in three numbers and are distributed in an annular manner inside the cylinder A (7). The inner sides of the three clamping plates (10) are all arranged in an arc shape. The three clamping plates (10) are respectively fixedly connected to one end of the output shaft of the three electric telescopic rods (9).

3. The pipe clamping assembly of a CNC pipe bender according to claim 1, It is characterized in that A pipe bending assembly is arranged at one end of the workbench (1) close to the cylinder B (8), and the pipe bending assembly comprises a support box (11), a pipe bending die (12), a limit die (13) and a mounting plate (14); the support box (11) is fixedly connected to one side of the workbench (1); the pipe bending die (12) is detachably connected to the top of the support box (11) by bolts; the limit die (13) is arranged on one side of the pipe bending die (12); the limit die (13) is detachably mounted on the top of the mounting plate (14) by bolts; and the mounting plate (14) is connected to the support box (11) via a driving assembly.

4. The pipe clamping assembly of a CNC pipe bender according to claim 3, It is characterized in that The driving assembly comprises a motor B (15), a connecting rod (16) and an electric hydraulic cylinder (17); the motor B (15) is fixedly mounted inside the support box (11); one end of the connecting rod (16) is fixedly connected to the output shaft of the motor B (15); the connecting rod (16) is arranged in an L shape; two ends of the electric hydraulic cylinder (17) are respectively fixedly connected to the connecting rod (16) and one end of the bottom of the mounting plate (14); the axis of the output shaft of the motor B (15) corresponds to the axis of the pipe bending mold (12).

5. The pipe clamping assembly of a CNC pipe bender according to claim 1, It is characterized in that The moving assembly includes a sliding rod (18) and a reciprocating screw (19), wherein the sliding rod (18) and the reciprocating screw (19) respectively pass through two sides of the bottom of the support frame A (5), the sliding rod (18) is slidably connected to the support frame A (5), and the reciprocating screw (19) is threadedly connected to the support frame A (5), the sliding rod (18) passes through one end of the support frame A (5) and is fixedly connected to the support frame B (6), and the reciprocating screw (19) passes through one end of the support frame A (5) and is rotatably connected to the support frame B (6).

6. A pipe clamping assembly for a CNC pipe bender according to claim 5, It is characterized in that The end of the reciprocating screw (19) away from the support frame B (6) is fixedly connected to a hand wheel, and the surfaces of the three clamping plates (10) on the inner side of the cylinder A (7) that contact the pipe fittings are fixedly connected to anti-skid rubber pads.

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