Lifting type expanding and rounding machine

Abstract

The utility model provides a lift type circle expanding machine, which relates to the technical field of circle expanding machines and comprises a circle expanding machine body, the lower end of the circle expanding machine body is in threaded connection with a hydraulic transmission cabinet, lifting frames are arranged at the front side end and the rear side end of the circle expanding machine body, lifting screw rods are installed in the groove walls of the lifting frames, and the upper ends of the lifting screw rods are connected with motors through couplings. The lower end of the lifting screw is connected with a transmission assembly through a transmission column, a connecting block is fixed to the surface of the lifting screw through a driving block, a lifting table is supported at the lower end of the hydraulic transmission cabinet, the left side and the right side of the lifting table are connected with the connecting block through a limiting groove in a limiting mode, and an air cylinder is installed on the upper surface of the connecting block. Supporting cylinder columns are distributed on the left side and the right side of the lifting table, and threaded columns are connected into the supporting cylinder columns. The problems that in the prior art, a lifting assembly supports and bears an expansion rounding machine body for a long time, damage to the lifting assembly is easily aggravated, and the service life is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of expansion machine technology, specifically to a lifting expansion machine. Background Technology

[0002] An expansion machine is a mechanical device used to correct and expand irregularly shaped large cylinders. Specifically, the expansion machine uses a hydraulic system to control multiple cylinders to move synchronously, correcting the shape of the cylinder to ensure that the accuracy after expansion is within ±1mm. This type of equipment is often used in preparation for robotic automatic welding. Through correction and welding of reinforcing rings, the cylinder is precisely expanded. A search revealed existing technology (publication number: CN202420772818.4) of a liftable expansion machine, which states that "this utility model innovatively designs a new type of expansion machine, making the axis of the expansion machine parallel to the ground. When the workpiece is transferred from the previous process, it can be directly hoisted and expanded without changing the workpiece's orientation, improving hoisting efficiency. Simultaneously, by setting up a lifting component, it is easy to adjust the fixed seat to adapt to different working conditions. The lifting component is a hydraulic cylinder, pneumatic cylinder, or electric push rod. It facilitates direct lifting actions via the hydraulic cylinder, pneumatic cylinder, or electric push rod." However, in the existing technology, the lifting component supports the expansion machine body for a long time, which easily exacerbates damage to the lifting components and affects their service life. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a lifting-type expansion machine is provided to solve the problem that in existing technologies, the lifting components support and bear the expansion machine body for a long time, which easily aggravates the damage of the lifting components and affects their service life.

[0004] To achieve the above objectives, a lifting-type rounding machine is provided, comprising: a rounding machine body, wherein a hydraulic transmission cabinet is screwed to the lower end of the rounding machine body.

[0005] The expansion machine body is equipped with lifting frames at its front and rear ends. Lifting screws are installed in the grooves of the lifting frames. A motor is connected to the upper end of the lifting screws via a coupling. A transmission assembly is connected to the lower end of the lifting screws via a transmission column. Connecting blocks are fixed to the surface of the lifting screws via drive blocks. A lifting platform is supported at the lower end of the hydraulic transmission cabinet. Connecting blocks are limited and connected to the left and right sides of the lifting platform via limiting grooves. Cylinders are installed on the upper surface of the connecting blocks. Support cylinders are distributed on the left and right sides of the lifting platform. Threaded columns are connected inside the support cylinders.

[0006] Furthermore, the right side of the expansion machine body is equipped with an expansion block mechanism and an expansion cone, and the lower surface of the hydraulic transmission cabinet is welded with support legs and a positioning ring.

[0007] Furthermore, a damping shock absorber is installed on the platform of the lifting platform; and a positioning ring is sleeved on the upper end of the damping shock absorber; and diagonal bracing plates are welded to the left and right sides of the lifting frame.

[0008] Furthermore, an electrical control box is installed on the front surface of the lifting frame, a motor is fixed on the upper surface of the lifting frame, and the front and rear sides of the lifting platform are in contact with the lifting frame.

[0009] Furthermore, a limiting groove is provided on the side end face of the lifting platform; and the cylinders are distributed on the upper wall of the limiting groove, and the connecting block is I-shaped and connected through the limiting groove.

[0010] Furthermore, the side of the connecting block contacts the side of the hydraulic transmission cabinet through a rubber pad, and a cross head is welded to the upper end face of the threaded column.

[0011] Furthermore, the lifting platform is welded with fixing blocks on the left and right sides, and the lower end face of the fixing blocks is provided with a cross-shaped groove; and a cross-shaped column head is inserted into the cross-shaped groove.

[0012] The beneficial effects of this utility model are as follows: the lifting expansion machine of this utility model utilizes a rotating lifting screw within the lifting frame to drive the expansion machine mounted on the lifting platform to move up and down, thereby adjusting the height of the expansion machine. This allows for convenient and flexible adjustment of the processing height of the lifting expansion machine. The cylinder within the lifting platform slot pushes the entire lifting platform upward, supporting the support cylinder at the left and right ends of the lifting platform. This allows the support cylinder to replace the lifting mechanism in bearing the weight of the expansion machine, effectively preventing the lifting mechanism from being under prolonged load and bearing the expansion machine after it has been lifted off the ground. This reduces fatigue damage to the lifting mechanism of the expansion machine and extends the service life of the lifting expansion machine. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the lifting expansion machine according to an embodiment of the present utility model.

[0014] Figure 2 This is a partial cross-sectional view of the lifting expansion machine according to an embodiment of the present invention.

[0015] Figure 3 This is a partial side cross-sectional view of the lifting expansion machine according to an embodiment of the present invention.

[0016] Figure 4 This is a front view cross-sectional structural diagram of the lifting platform according to an embodiment of the present utility model.

[0017] In the diagram: 1. Expanding body; 11. Expanding block mechanism; 12. Expanding cone; 13. Hydraulic transmission cabinet; 14. Support leg; 15. Positioning ring; 2. Lifting frame; 21. Electrical control box; 22. Diagonal brace; 23. Lifting screw; 24. Motor; 25. Coupling; 26. Drive block; 27. Transmission column; 28. Transmission assembly; 3. Lifting platform; 31. Damping shock absorber; 32. Connecting block; 33. Rubber pad; 34. Cylinder; 35. Fixing block; 36. Limiting groove; 4. Support cylinder column; 41. Cross head; 42. Threaded column. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1 to 4 As shown, this utility model provides a lifting-type rounding machine, including: a rounding machine body 1, and a hydraulic transmission cabinet 13 screwed to the lower end of the rounding machine body 1.

[0020] The front and rear ends of the expansion machine body 1 are provided with lifting frames 2. Lifting screws 23 are installed in the groove wall of the lifting frame 2. The upper end of the lifting screw 23 is connected to a motor 24 through a coupling 25. The lower end of the lifting screw 23 is connected to a transmission component 28 through a transmission column 27. A connecting block 32 is fixed to the surface of the lifting screw 23 through a drive block 26. The lower end of the hydraulic transmission cabinet 13 supports a lifting platform 3. The left and right sides of the lifting platform 3 are limited and connected to the connecting blocks 32 through limit grooves 36. A cylinder 34 is installed on the upper surface of the connecting block 32. Support cylinders 4 are distributed on the left and right sides of the lifting platform 3. Threaded columns 42 are connected inside the cylinders of the support cylinders 4.

[0021] When the expansion machine body 1 needs to be raised, the control motor 24 starts, driving the lifting screw 23 to rotate. The drive block 26 converts the rotational motion of the lifting screw 23 into linear motion, causing the expansion machine body 1 on the lifting platform 3 to move upward to a suitable position. Then, the cylinder 34 pushes upward, causing the lifting platform 3 and the expansion machine body 1 to move upward a short distance. The support cylinder 4 is then placed at the lower end of the side fixing block 35 of the lifting platform 3. The cross head 41 of the threaded column 42 is inserted into the groove of the fixing block 35. The support cylinder 4 is rotated downward until the bottom of the cylinder is supported on the ground. The cylinder 24 retracts. At this time, the lifting platform 3 and the expansion machine body 1 are supported by the four sets of support cylinders 4 on the side, thus replacing the lifting mechanism in bearing the load for a long time and the expansion machine body 1 after being lifted off the ground. This helps to reduce fatigue damage to the lifting mechanism of the expansion machine and extend the service life of the lifting expansion machine.

[0022] In this embodiment, the right side of the expansion machine body 1 is equipped with an expansion block mechanism 11 and an expansion cone 12, and the lower surface of the hydraulic transmission cabinet 13 is welded with a support leg 14 and a positioning ring 15.

[0023] In a preferred embodiment, the expansion block mechanism 11 and the expansion cone 12 are the main components of the expansion machine body 1. The expansion block mechanism 11 is used to clamp the workpiece for expansion, and the hydraulic system in the hydraulic transmission cabinet 13 pushes the expansion cone 12 to unfold outward, applying pressure to the workpiece and causing it to undergo plastic deformation, thereby achieving the effect of expansion.

[0024] In this embodiment, a damping shock absorber 31 is installed on the upper surface of the lifting platform 3; and a positioning ring 15 is sleeved on the upper end of the damping shock absorber 31. Diagonal bracing plates 22 are welded to the left and right sides of the lifting frame 2. An electrical control box 21 is installed on the front surface of the lifting frame 2, and a motor 24 is fixed on the upper surface of the lifting frame 2. The front and rear sides of the lifting platform 3 are in contact with the lifting frame 2.

[0025] In a preferred embodiment, the lower end of the hydraulic transmission cabinet 13 is positioned and inserted into the lifting platform 3 via a positioning ring 15 to prevent the entire expansion machine from detaching from the surface of the lifting platform 3. A damping shock absorber 31 supports the entire expansion machine and reduces vibrations experienced by the machine. The electrical control box 21 controls the start and stop of the motor 24 and the operation of the air pump (not shown in the figure). The air pump uses compressed air to push the piston inside the cylinder 34 up and down, thereby achieving the extension and retraction effect of the cylinder 34.

[0026] In this embodiment, a limiting groove 36 is formed on the side end face of the lifting platform 3; and the cylinders 34 are distributed on the upper wall of the limiting groove 36, with the connecting block 32 in an I-shape penetrating and connected at the limiting groove 36. The side of the connecting block 32 contacts the side of the hydraulic transmission cabinet 13 through the rubber pad 33, and a cross-shaped head 41 is welded to the upper end face of the threaded column 42. Fixing blocks 35 are welded to the left and right sides of the lifting platform 3, and a cross-shaped groove is formed on the lower end face of the fixing block 35; and the cross-shaped head 41 is inserted into the cross-shaped groove.

[0027] In a preferred embodiment, when the expansion machine is rising, the connecting block 32 is attached to the upper groove surface of the limiting groove 36. When the expansion machine stops rising, the connecting block 32 is separated from the upper groove surface of the limiting groove 36 by the push of the cylinder 34, and the thrust of the cylinder 34 temporarily supports the lifting platform 3 and the expansion machine. The support cylinder 4 and the threaded column 42 constitute a telescopic support column, which facilitates long-term auxiliary support for the expansion machine after it has risen, effectively avoiding long-term load on the lifting mechanism after the expansion machine has been lifted off the ground, and reducing fatigue damage to the lifting mechanism of the expansion machine.

[0028] This utility model of a lifting-type expansion machine can effectively solve the problem in the prior art where the lifting component supports and bears the expansion machine body for a long time, which easily aggravates the damage of the lifting component and affects its service life. It allows for convenient and flexible adjustment of the processing height of the lifting-type expansion machine, effectively avoids the expansion machine being lifted off the ground for a long time under load, reduces fatigue damage to the lifting mechanism of the expansion machine, and extends the service life of the lifting-type expansion machine. It is applicable to lifting-type expansion machines.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting-type expansion machine, comprising: The expansion body (1) has a hydraulic transmission cabinet (13) screwed to its lower end, characterized in that: The expansion body (1) is provided with a lifting frame (2) at the front and rear ends. A lifting screw (23) is installed in the groove wall of the lifting frame (2). The upper end of the lifting screw (23) is connected to a motor (24) through a coupling (25). The lower end of the lifting screw (23) is connected to a transmission component (28) through a transmission column (27). A connecting block (32) is fixed on the surface of the lifting screw (23) through a drive block (26). The lower end of the hydraulic transmission cabinet (13) is supported by a lifting platform (3). The left and right sides of the lifting platform (3) are connected to the connecting block (32) through a limiting groove (36). A cylinder (34) is installed on the upper surface of the connecting block (32). Support cylinders (4) are distributed on the left and right sides of the lifting platform (3). A threaded column (42) is connected inside the cylinder of the support cylinder (4).

2. The lifting-type expansion machine according to claim 1, characterized in that, The right side of the expansion body (1) is equipped with an expansion block mechanism (11) and an expansion cone (12), and the lower surface of the hydraulic transmission cabinet (13) is welded with a support leg (14) and a positioning ring (15).

3. The lifting-type rounding machine according to claim 1, characterized in that, The lifting platform (3) is equipped with a damping shock absorber (31); and a positioning ring (15) is sleeved on the upper end of the damping shock absorber (31). The lifting frame (2) is welded with inclined bracing plates (22) on the left and right sides.

4. A lifting-type rounding machine according to claim 1, characterized in that, An electrical control box (21) is installed on the front surface of the lifting frame (2), a motor (24) is fixed on the upper surface of the lifting frame (2), and the front and rear sides of the lifting platform (3) are in contact with the lifting frame (2).

5. A lifting-type expansion machine according to claim 1, characterized in that, The lifting platform (3) has a limiting groove (36) on its side end face; and the cylinder (34) is located on the groove wall of the limiting groove (36), and the connecting block (32) is connected in an I-shape through the limiting groove (36).

6. A lifting-type rounding machine according to claim 1, characterized in that, The side of the connecting block (32) contacts the side of the hydraulic transmission cabinet (13) through the rubber pad (33), and the upper end face of the threaded column (42) is welded with a cross head (41).

7. A lifting-type rounding machine according to claim 6, characterized in that, The lifting platform (3) has fixed blocks (35) welded on the left and right sides. The lower end face of the fixed block (35) has a cross-shaped groove; and a cross-shaped column head (41) is inserted into the cross-shaped groove.

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