Clamping device for replacement pipe turning

Abstract

The utility model discloses a clamping device for replacement pipe turning, which relates to the technical field of replacement pipe turning and comprises a supporting seat, two electric push rods are symmetrically fixed on the outer wall of the top of the supporting seat, and the telescopic ends of the two electric push rods are fixedly connected with the same lifting plate. A hollow rod is connected to the lifting plate through an electric rotating mechanism, and a replacement pipe body is fixed to the hollow rod through an internal tensioning type clamping mechanism. The internal tensioning type clamping mechanism is arranged, an internal tensioning clamping mode is adopted, the situation that a clamping plate blocks the outer surface of the replacement pipe is prevented, and therefore the turning machining efficiency of the replacement pipe is guaranteed; and the electric rotating mechanism is arranged, and the rotating shaft can drive the replacement pipe body fixed by the internal tensioning type clamping mechanism to rotate, so that a cutter can form uniform cutting force on the surface of the replacement pipe body, the machining error is reduced, and the machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of replacement tube turning technology, and in particular to a clamping device for replacement tube turning. Background Technology

[0002] During the turning process of a displacement tube, the cutting tool rotates and moves along the surface of the tube, thereby removing material and forming the desired shape and size for easy use. Currently, during the turning of a displacement tube, a clamping device is needed to effectively position it to prevent movement. However, existing clamping devices have the following problems in use:

[0003] Firstly, most existing clamping devices use clamping plates to clamp the replacement tube from the outside. As the tool moves on the surface of the replacement tube, the external clamping plate will block the external surface of the replacement tube, thus affecting normal turning operations.

[0004] Secondly, the existing clamping device has a simple structure and cannot rotate the clamped replacement tube, which makes it impossible for the tool to form a uniform cutting force on the surface of the replacement tube, thus affecting the machining accuracy. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a clamping device for replacement tube turning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A clamping device for machining a replacement tube includes a support base, on which two electric push rods are symmetrically fixed to the top outer wall, and the telescopic ends of the two electric push rods are fixedly connected to the same lifting plate.

[0008] The lifting plate is connected to a hollow rod by an electric rotating mechanism, and the replacement tube body is fixed on the hollow rod by an internal tension clamping mechanism.

[0009] The internal tensioning clamping mechanism includes a protective shell fixedly connected to the side wall of the hollow rod, a servo motor fixedly installed inside the protective shell, a bidirectional screw rotatably installed inside the hollow rod, two threaded sleeves symmetrically screwed to the two opposite threaded ends of the bidirectional screw, two movable sleeves fixedly connected to the two threaded sleeves in sequence, and four annularly distributed tensioning components.

[0010] Preferably, the tensioning assembly includes an arc-shaped tensioning plate and two hinge members symmetrically hinged to two movable sleeves, and the top ends of the two hinge members are both hinged to the inner sidewall of the arc-shaped tensioning plate.

[0011] Preferably, the top of the hollow rod is provided with a slide rail, both threaded sleeves are slidably connected to the inner wall of the slide rail, and both movable sleeves are slidably connected to the hollow rod.

[0012] Preferably, the electric rotating mechanism includes a gearbox fixedly connected to the top outer wall of the lifting plate, a rotating shaft rotatably mounted on one side of the gearbox, a motor fixedly mounted on the top outer wall of the gearbox, a driving bevel gear fixedly mounted on the output shaft of the motor, and a driven bevel gear fixedly mounted on one end of the rotating shaft.

[0013] Preferably, the output shaft of the motor passes through the top of the gearbox, and the driving bevel gear and the driven bevel gear mesh with each other and are both located inside the gearbox.

[0014] Preferably, an electric slip ring is installed on the rotating shaft, and one end of the outer wall of the rotating shaft is coaxially fixed to the side wall of the protective shell.

[0015] Preferably, a controller is fixedly installed on the front outer wall of the support base.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. It is equipped with an internal tension clamping mechanism. The servo motor inside the protective shell controls the rotation of the bidirectional screw. Then, under the limit of the slide, the two threaded sleeves connected to the bidirectional screw will drive the two movable sleeves to move closer to each other. Then, under the hinge effect of each hinge, the four arc-shaped tension plates will expand outward and tighten it from the inside of the replacement tube body. The internal tension clamping method prevents the clamping plates from blocking the outer surface of the replacement tube, thereby ensuring the turning efficiency of the replacement tube.

[0018] 2. An electric rotating mechanism is provided. The motor controls the rotation of the driving bevel gear, which in turn drives the rotating shaft to rotate. The rotating shaft then drives the replacement tube body, which is fixed by the internal tension clamping mechanism, to rotate. This allows the tool to form a uniform cutting force on the surface of the replacement tube body, thereby reducing machining errors and improving machining accuracy. At the same time, it also allows the tool to form a continuous cutting path on the surface of the replacement tube body, thereby improving surface quality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the entire front view of this utility model;

[0020] Figure 2 This is a partial three-dimensional exploded view of the internal tensioning clamping mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram of the front view of the gearbox structure after the front side has been cut off.

[0022] Figure 4 This is a three-dimensional structural diagram of the hollow rod and protective shell in the vertical cross section of this utility model;

[0023] Figure 5 This is a side view of the structure of the replacement tube body in contact with the four arc-shaped tensioning plates in this utility model.

[0024] Figure 6 This is a three-dimensional enlarged structural diagram of the electric rotating mechanism in this utility model.

[0025] In the diagram: 1. Support base; 2. Electric push rod; 3. Lifting plate; 4. Hollow rod; 5. Protective shell; 6. Servo motor; 7. Bidirectional screw; 8. Screw sleeve; 9. Movable sleeve; 10. Arc-shaped tensioning plate; 11. Hinge; 12. Slide rail; 13. Gearbox; 14. Rotating shaft; 15. Motor; 16. Driving bevel gear; 17. Driven bevel gear; 18. Electric slip ring; 19. Replacement tube body; 20. Controller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1, referring to Figure 1-5 A clamping device for replacement tube turning includes a support base 1, and a controller 20 is fixedly installed on the front outer wall of the support base 1.

[0028] In this embodiment, two electric push rods 2 are symmetrically fixed on the top outer wall of the support base 1. The telescopic ends of the two electric push rods 2 are fixedly connected to the same lifting plate 3. Both electric push rods 2 are electrically connected to the controller 20. Thus, the controller 20 can control the two electric push rods 2 to run synchronously and achieve the effect of adjusting the workpiece cutting height.

[0029] In this embodiment, a hollow rod 4 is connected to the lifting plate 3 via an electric rotating mechanism, and a replacement tube body 19 is fixed to the hollow rod 4 via an internal tension clamping mechanism.

[0030] Specifically, the internal tensioning clamping mechanism includes a protective shell 5 fixedly connected to the side wall of the hollow rod 4, a servo motor 6 fixedly installed inside the protective shell 5, a bidirectional screw 7 rotatably installed inside the hollow rod 4, two threaded sleeves 8 symmetrically screwed to the two opposite threaded ends of the bidirectional screw 7, two movable sleeves 9 fixedly connected to the two threaded sleeves 8 in sequence, and four annularly distributed tensioning components.

[0031] Furthermore, the tensioning assembly includes an arc-shaped tensioning plate 10 and two hinge members 11 symmetrically hinged to two movable sleeves 9. The top ends of the two hinge members 11 are both hinged to the inner sidewall of the arc-shaped tensioning plate 10. A slide rail 12 is provided on the top of the hollow rod 4. The two threaded sleeves 8 are slidably connected to the inner wall of the slide rail 12, and the two movable sleeves 9 are slidably connected to the hollow rod 4.

[0032] In this embodiment, the servo motor 6 inside the protective shell 5 controls the rotation of the bidirectional screw 7. Then, under the limit of the slide rail 12, the two threaded sleeves 8 connected to the bidirectional screw 7 will drive the two movable sleeves 9 to move closer to each other. Then, under the hinge effect of each hinge 11, the four arc-shaped tension plates 10 will expand outward and tighten it from the inside of the replacement tube body 19. The internal tension clamping method prevents the clamping plates from blocking the outer surface of the replacement tube, thereby ensuring the turning efficiency of the replacement tube.

[0033] Example 2, refer to Figure 1 , Figure 3 and Figure 6 This embodiment is an optimization based on embodiment 1. Specifically, it is a clamping device for replacement tube turning, which also includes an electric rotating mechanism.

[0034] Specifically, the electric rotating mechanism includes a gearbox 13 fixedly connected to the top outer wall of the lifting plate 3, a rotating shaft 14 rotatably mounted on one side of the gearbox 13, a motor 15 fixedly mounted on the top outer wall of the gearbox 13, a driving bevel gear 16 fixedly mounted on the output shaft of the motor 15, and a driven bevel gear 17 fixedly mounted on one end of the rotating shaft 14.

[0035] Furthermore, the output shaft of the motor 15 passes through the top of the gearbox 13. The motor 15 is electrically connected to and controlled by the controller 20. The driving bevel gear 16 and the driven bevel gear 17 mesh with each other and are both located inside the gearbox 13. An electric slip ring 18 is installed on the rotating shaft 14. The setting of the electric slip ring 18 can ensure the normal wiring and use of the servo motor 6 in the rotating use state. One end of the outer wall of the rotating shaft 14 is coaxially fixed to the side wall of the protective shell 5.

[0036] In this embodiment, the motor 15 controls the rotation of the driving bevel gear 16, and the driven bevel gear 17 meshing with the driving bevel gear 16 drives the rotating shaft 14 to rotate. The rotating shaft 14 then drives the replacement tube body 19, which is fixed by the internal tension clamping mechanism, to rotate. This allows the tool to form a uniform cutting force on the surface of the replacement tube body 19, thereby reducing machining errors and improving machining accuracy. At the same time, it also allows the tool to form a continuous cutting path on the surface of the replacement tube body 19, thereby improving surface quality.

[0037] Working principle: First, the servo motor 6 inside the protective shell 5 controls the rotation of the bidirectional screw 7. Then, under the limit of the slide rail 12, the two threaded sleeves 8 connected to the bidirectional screw 7 will drive the two movable sleeves 9 to move closer to each other. Then, under the hinge effect of each hinge 11, the four arc-shaped tensioning plates 10 will expand outward and tighten it from the inside of the replacement tube body 19.

[0038] Secondly, the motor 15 controls the rotation of the drive bevel gear 16, and the driven bevel gear 17 meshing with the drive bevel gear 16 will drive the rotating shaft 14 to rotate. In turn, the rotating shaft 14 will drive the replacement tube body 19, which is fixed by the internal tension clamping mechanism, to rotate, thereby achieving the effect of rotational processing.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping device for the replacement tube turning, comprising a support seat (1), characterized in that, The top outer wall of the support base (1) is symmetrically fixed with two electric push rods (2), and the telescopic ends of the two electric push rods (2) are fixedly connected with the same lifting plate (3). The lifting plate (3) is connected with a hollow rod (4) through an electric rotating mechanism, and the hollow rod (4) is fixed with a replacement pipe body (19) through an internal tension type clamping mechanism. The internal tension type clamping mechanism comprises a protective shell (5) fixedly connected to the side wall of the hollow rod (4), a servo motor (6) fixedly installed in the protective shell (5), a bidirectional screw rod (7) rotatably installed in the hollow rod (4), two screw sleeves (8) symmetrically screwed on two opposite threaded ends of the bidirectional screw rod (7), two movable sleeves (9) fixedly connected in sequence on the two screw sleeves (8), and four annularly distributed tension assemblies.

2. The clamping device for turning a replacement tube according to claim 1, characterized in that The tension assembly comprises an arc-shaped tension plate (10) and two hinge pieces (11) symmetrically hinged on the two movable sleeves (9), and the top ends of the two hinge pieces (11) are hinged on the inner side wall of the arc-shaped tension plate (10).

3. The clamping device for turning a replacement tube according to claim 1, characterized in that The top of the hollow rod (4) is provided with a slide (12), the two screw sleeves (8) are in sliding connection with the inner wall of the slide (12), and the two movable sleeves (9) are in sliding connection with the hollow rod (4).

4. The clamping device for turning a replacement tube according to claim 1, characterized in that The electric rotating mechanism comprises a gear box (13) fixedly connected to the top outer wall of the lifting plate (3), a rotating shaft (14) rotatably installed on one side of the gear box (13), a motor (15) fixedly installed on the top outer wall of the gear box (13), a driving bevel gear (16) fixedly sleeved on the output shaft of the motor (15), and a driven bevel gear (17) fixedly sleeved on one end of the rotating shaft (14).

5. The clamping device for turning a replacement tube according to claim 4, characterized in that The output shaft of the motor (15) penetrates the top of the gear box (13), and the driving bevel gear (16) and the driven bevel gear (17) are in meshing engagement and are located in the gear box (13).

6. The clamping device for turning a replacement tube according to claim 4, characterized in that An electric slip ring (18) is installed on the rotating shaft (14), and one end of the rotating shaft (14) is coaxially fixed to the side wall of the protective shell (5).

7. The clamping device for turning a replacement tube according to claim 1, characterized in that The front outer wall of the support base (1) is fixedly installed with a controller (20).

Images