Tubular workpiece machining bending machine

Abstract

The utility model belongs to the technical field of bending processing equipment, and particularly discloses a tubular workpiece processing bending machine which comprises a working table, a central column, a clamping plate, an L-shaped plate and a pressing block, a longitudinal sliding groove is formed in the middle of the working table, the central column is arranged at one end of the sliding groove, a bending column is arranged on the side edge of the central column, and the clamping plate is arranged on the clamping plate. First lead screws parallel to each other are arranged in the sliding grooves, lead screw sliding blocks are in threaded connection with the first lead screws, clamping plates are fixed to the upper portions of the lead screw sliding blocks, L-shaped plates are fixed to the upper portions of the clamping plates, second lead screws penetrate through the upper portions of the L-shaped plates, and pressing blocks are rotationally connected to the tail ends of the second lead screws; a mounting plate is arranged at the position, away from the center column, above the workbench, one side of the mounting plate is rotationally connected with a worm, a driving motor is arranged on the other side of the mounting plate, a turbine is arranged on the side edge of the worm, and a bending rod is arranged above the turbine. The tubular workpiece is clamped through the clamping plate, and the second lead screw is rotated to drive the pressing block to descend to press the tubular workpiece. And the tubular workpiece is bent through the bending rod.

Description

Technical Field

[0001] The utility model relates to the technical field of bending processing equipment, in particular to a tubular workpiece processing bending machine. Background Art

[0002] The tubular structure is a hollow columnar structure. In the field of mechanical processing and manufacturing, some tubular workpieces need to be bent to form angles after grinding and cutting, which is beneficial to the subsequent use of the workpiece. When the workpiece is bent, a bending device is required.

[0003] Most existing bending machines are difficult to directly bend the workpiece into a U shape, so some people think of setting up a symmetrical bending rod and using gears to drive the bending rod to squeeze and bend the workpiece at the same time. For example, the Chinese utility model patent with announcement number CN218361496U specifically discloses a bending mechanism.

[0004] However, during actual use of the above-mentioned bending machine, people will find that the device clamps and fixes the workpiece through the clamping plate and the central bending column. During the bending process, since the surface of the tubular workpiece is curved, when the bending rod is used for extrusion and bending, the workpiece is prone to upward movement and dislocation, and its practicality is poor. Utility Model Content

[0005] The purpose of the utility model is to provide a tubular workpiece processing bending machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tubular workpiece processing bending machine, comprising a workbench, a center column, a clamping plate, an L-shaped plate and a pressure block, a longitudinal slide groove is opened in the middle of the workbench, a center column is arranged at one end of the slide groove, a bending column is arranged on the side of the center column, and first screw rods parallel to each other are arranged in the slide groove, one end of the first screw rod is rotatably connected to the inner wall of the slide groove, the other end of the first screw rod passes through the workbench and is connected to a first knob, a screw rod slider is threadedly connected to the first screw rod, and a screw rod is fixed above the screw rod slider. A splint, an L-shaped plate is fixed above the splint, a second screw rod passes through the top of the L-shaped plate, the second screw rod and the L-shaped plate are threadedly connected, the end of the second screw rod is rotatably connected to a pressure block, and a second knob is provided on the top of the second screw rod; a mounting plate is provided above the workbench at a position away from the center column, a worm is rotatably connected to one side of the mounting plate, a drive motor is provided on the other side of the mounting plate, a drive shaft of the drive motor is connected to the worm, a worm wheel is provided on the side of the worm, the worm wheel and the worm are meshed with each other, the worm wheel is rotatably connected to the workbench, and a bending rod is provided above the worm wheel.

[0007] By placing the tubular workpiece between the clamping plate and the center column, the clamping plate can be driven to move the screw slider by rotating the first screw, and the screw slider drives the clamping plate to clamp the tubular workpiece, and the second screw is driven to drive the pressing block to descend to press the tubular workpiece. The worm is driven to rotate by the driving motor, and the worm drives the bending rod on the worm wheel to squeeze and bend the tubular workpiece.

[0008] Preferably, a sliding connection is adopted between the screw slider and the slide groove, and the screw slider is restricted by the slide groove to prevent the screw slider from rotating along with the first screw rod when the first screw rod drives the screw slider to move.

[0009] Preferably, positioning rods are symmetrically arranged above the pressing block, the positioning rods are parallel to the second screw rod, and the positioning rods penetrate the L-shaped plate. The positioning rods are arranged to limit the pressing block.

[0010] Preferably, the pressing block is arc-shaped to match the arc-shaped surface of the tubular workpiece.

[0011] Preferably, a plurality of legs are provided under the workbench, and the legs are provided mainly for supporting purpose.

[0012] Preferably, the bending rod is fixed to the worm gear by bolts to facilitate later disassembly and assembly.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model clamps the tubular workpiece through the cooperation of the clamping plate and the center column, and after clamping, the tubular workpiece is pressed on the workbench by the pressing block, so that the tubular workpiece is completely pressed and fixed, and the worm is used to drive the worm wheel to rotate, thereby driving the bending rod to bend the tubular workpiece. Since the workpiece is fixed by the clamping plate and the pressing block, the phenomenon of the workpiece moving upward and being dislocated can be effectively avoided, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0017] In the figure: 1. workbench; 2. center column; 3. bending column; 4. slide groove; 5. first screw; 6. first knob; 7. screw slider; 8. clamping plate; 9. L-shaped plate; 10. mounting plate; 11. worm; 12. drive motor; 13. worm gear; 14. bending rod; 15. support leg; 16. pressure block; 17. second screw; 18. second knob; 19. positioning rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3 The utility model provides a technical solution: a tubular workpiece processing bending machine, comprising a workbench 1, a center column 2, a clamping plate 8, an L-shaped plate 9 and a pressure block 16, a longitudinal slide groove 4 is opened in the middle of the workbench 1, a center column 2 is arranged at one end of the slide groove 4, a bending column 3 is arranged on the side of the center column 2, and first screw rods 5 parallel to each other are arranged in the slide groove 4, one end of the first screw rod 5 is rotatably connected to the inner wall of the slide groove 4, the other end of the first screw rod 5 passes through the workbench 1 and is connected to the first knob 6, a screw rod slider 7 is threadedly connected to the first screw rod 5, a clamping plate 8 is fixed above the screw rod slider 7, an L-shaped plate 9 is fixed above the clamping plate 8, a second screw rod 17 passes through the L-shaped plate 9, the second screw rod 17 is threadedly connected to the L-shaped plate 9, the end of the second screw rod 17 is rotatably connected to the pressure block 16, and a second knob 18 is arranged on the top of the second screw rod 17.

[0022] By placing the tubular workpiece between the clamping plate 8 and the center column 2, the clamping plate 8 can drive the screw slider 7 to move by rotating the first screw 5, and the screw slider 7 is used to drive the clamping plate 8 to clamp the tubular workpiece, and the second screw 17 is rotated to drive the pressure block 16 to descend to press the tubular workpiece.

[0023] A mounting plate 10 is provided above the workbench 1 at a position away from the center column 2. A worm 11 is rotatably connected to one side of the mounting plate 10. A driving motor 12 is provided on the other side of the mounting plate 10. The driving shaft of the driving motor 12 is connected to the worm 11. A worm wheel 13 is provided on the side of the worm 11. The worm wheel 13 and the worm 11 are meshed with each other. The worm wheel 13 is rotatably connected to the workbench 1, and a bending rod 14 is provided above the worm wheel 13.

[0024] The worm 11 is driven to rotate by the driving motor 12 , and the worm 11 drives the bending rod 14 on the worm wheel 13 to squeeze and bend the tubular workpiece.

[0025] Furthermore, a sliding connection is adopted between the screw slider 7 and the slide groove 4, and the screw slider 7 is restricted by the slide groove 4 to prevent the screw slider 7 from rotating along with the first screw rod 5 when the first screw rod 5 drives the screw slider 7 to move.

[0026] Furthermore, a positioning rod 19 is symmetrically arranged above the pressing block 16 . The positioning rod 19 and the second screw rod 17 are parallel to each other, and the positioning rod 19 passes through the L-shaped plate 9 . The positioning rod 19 is arranged to limit the pressing block 16 .

[0027] Furthermore, the pressing block 16 is arc-shaped to match the arc-shaped surface of the tubular workpiece.

[0028] Furthermore, a plurality of legs 15 are provided under the workbench 1, and the legs 15 are provided mainly for supporting.

[0029] Furthermore, the bending rod 14 is fixed to the worm gear 13 by bolts to facilitate later disassembly and assembly.

[0030] Working principle: When in use, just place the tubular workpiece between the center column 2 and the clamping plate 8, then turn the first knob 6, so that the first knob 6 drives the first screw 5 to rotate, the first screw 5 drives the screw slider 7 to move, the screw slider 7 drives the clamping plate 8 to approach the workpiece, and cooperates with the center column 2 to clamp the workpiece. After clamping, turn the second knob 18, so that the second knob 18 drives the second screw 17 to rotate, and the second screw 17 drives the pressure block 16 to move downward, and the pressure block 16 is used to press the tubular workpiece, so that the workpiece is completely fixed. Then start the drive motor 12, so that the drive motor 12 drives the worm 11 to rotate, so that the worm 11 drives the worm wheel 13 to rotate, so that the worm wheel 13 drives the bending rod 14 to rotate, and the bending rod 14 is used to bend the workpiece. After this, the second screw rod 17 is rotated in the opposite direction to drive the pressure block 16 to move upward, so that the pressure block 16 is removed from the workpiece, and then the first screw rod 5 is rotated in the opposite direction so that the first screw rod 5 drives the screw slider 7 to move back, driving the clamping plate 8 to move away from the workpiece, canceling the fixation of the workpiece, and the bent workpiece can be removed.

[0031] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0032] 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 bending machine for processing tubular workpieces, characterized in that: The invention comprises a workbench (1), a center column (2), a clamping plate (8), an L-shaped plate (9) and a pressing block (16), wherein a longitudinal slide groove (4) is provided in the middle of the workbench (1), a center column (2) is provided at one end of the slide groove (4), a bending column (3) is provided at the side of the center column (2), a first screw rod (5) parallel to each other is provided in the slide groove (4), one end of the first screw rod (5) is rotatably connected to the inner wall of the slide groove (4), the other end of the first screw rod (5) passes through the workbench (1) and is connected to a first knob (6), a screw rod slider (7) is threadedly connected to the first screw rod (5), a clamping plate (8) is fixed above the screw rod slider (7), an L-shaped plate (9) is fixed above the clamping plate (8), a second screw rod (5) is threadedly connected to the L-shaped plate (9), and a second screw rod (5) is threadedly connected to the L-shaped plate (9). The second screw rod (17) is connected to the L-shaped plate (9) by a threaded connection, the end of the second screw rod (17) is rotatably connected to a pressure block (16), and the top of the second screw rod (17) is provided with a second knob (18); a mounting plate (10) is provided above the workbench (1) at a position away from the central column (2), one side of the mounting plate (10) is rotatably connected to a worm (11), and the other side of the mounting plate (10) is provided with a driving motor (12), the driving shaft of the driving motor (12) is connected to the worm (11), a worm wheel (13) is provided on the side of the worm (11), the worm wheel (13) and the worm (11) are meshed with each other, the worm wheel (13) is rotatably connected to the workbench (1), and a bending rod (14) is provided above the worm wheel (13).

2. A tubular workpiece bending machine according to claim 1, characterized in that: The screw slider (7) and the slide groove (4) are connected by sliding.

3. The tubular workpiece bending machine according to claim 1, characterized in that: A positioning rod (19) is symmetrically arranged above the pressing block (16); the positioning rod (19) and the second screw rod (17) are parallel to each other, and the positioning rod (19) passes through the L-shaped plate (9).

4. The tubular workpiece bending machine according to claim 1, characterized in that: The pressing block (16) is arc-shaped.

5. The tubular workpiece bending machine according to claim 1, characterized in that: A plurality of supporting legs (15) are arranged below the workbench (1).

6. The tubular workpiece bending machine according to claim 1, characterized in that: The bending rod (14) is fixed on the worm wheel (13) by means of bolts.

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