High-strength square and rectangular tube reducing device

Abstract

The utility model discloses a square and rectangular tube reducing device with high strength, which relates to the technical field of square and rectangular tube reducing and comprises a support frame, a hydraulic component is fixedly connected to the top end of the support frame, a controller is fixedly connected to the upper side of the left end of the support frame, and a hydraulic power mechanism is arranged on the lower side of the left end of the support frame. A bottom fixing device is fixedly connected to the bottom end of the inner side of the supporting frame and located under the hydraulic assembly. According to the utility model, the diameter-expanding pressing block is slowly pressed down, so that the reducing steps are reduced, the labor cost is reduced, the diameter-expanding pressing block can be replaced through the matching of the limiting block and the movable same-position groove, the diameter of the square and rectangular pipe is expanded as required, the application range and the applicability are improved, and the production efficiency is improved. And the bottom fixing device can move outwards from the inner side of the bottom end of the square and rectangular pipe to fix the bottom of the square and rectangular pipe, so that the bottom of the square and rectangular pipe is prevented from deforming in the diameter expanding process, the square and rectangular pipes with different inner diameters are fixed, and the use range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of square and rectangular tube diameter reduction, in particular to a square and rectangular tube diameter reduction device with high strength. Background Art

[0002] A square tube reducing device is a device used to change the cross-sectional size of square tubes. In some engineering applications, it may be necessary to connect or transition square tubes of different sizes. The reducing device can achieve this size conversion, so that square tubes of different specifications can be matched and installed to meet specific design requirements. If there are remaining square tubes of different sizes, they can be converted to the required size through the reducing device, thereby improving material utilization and reducing waste.

[0003] The existing technology has the following problems:

[0004] In the existing diameter-changing process, a series of molds with cavities of different sizes are required to place the square tube into the mold. Pressure is applied to cause the square tube to undergo plastic deformation in the mold cavity, thereby gradually changing its cross-sectional size. However, in the existing diameter-changing device, many workers have to operate the pipe multiple times to gradually change its diameter. Multiple manual operations result in high labor costs. In addition, in the general diameter-changing process, the bottom of the square tube is not supported, causing the bottom of the square tube to easily deform under pressure, resulting in a low yield rate. Utility Model Content

[0005] The utility model provides a square tube diameter reducing device with high strength to solve the above-mentioned background problems.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A high-strength square tube diameter reducing device includes a support frame, the top of the support frame is fixedly connected to a hydraulic assembly, the upper left end of the support frame is fixedly connected to a controller, the lower left end of the support frame is provided with a hydraulic power mechanism, the inner bottom end of the support frame is fixedly connected to a bottom fixing device, and the bottom fixing device is located directly below the hydraulic assembly.

[0008] A further improvement of the technical solution of the present utility model is that: the hydraulic assembly includes a hydraulic cylinder, the hydraulic cylinder passes through the middle of the top end of the support frame from top to bottom, the outer surface of the hydraulic cylinder is fixedly connected to the top end of the support frame, the bottom end of the hydraulic cylinder is fixedly connected to the hydraulic arm, and the bottom end of the hydraulic arm is fixedly connected to an expansion assembly.

[0009] The further improvement in the technical scheme of the utility model lies in that the diameter expansion assembly comprises a threaded pressing column, a limiting ring is threadedly connected to the outer surface of the threaded pressing column, a diameter expansion pressing block is arranged at the bottom end of the threaded pressing column, a moving co-site groove is arranged at one side of the diameter expansion pressing block and the threaded pressing column, a limiting block is slidably connected to the inner side of the moving co-site groove, and the limiting block is funnel-shaped.

[0010] The further improvement in the technical scheme of the utility model lies in that the diameter expansion pressing block is inverted trapezoidal, and the bottom end to the top end of the diameter expansion pressing block is inclined.

[0011] The further improvement in the technical scheme of the utility model lies in that the bottom fixing device comprises a supporting pressing plate, the bottom end of the supporting pressing plate is fixedly connected to the inner bottom end of the supporting frame, longitudinal moving grooves are arranged in the front and back of the middle part of the top end of the supporting pressing plate, transverse moving grooves are arranged in the left and right of the top end of the supporting pressing plate, the longitudinal moving grooves and the transverse moving grooves are perpendicular to each other, and internal fixing assemblies are arranged in the inner sides of the longitudinal moving grooves and the transverse moving grooves.

[0012] The further improvement in the technical scheme of the utility model lies in that the internal fixing assemblies comprise longitudinal moving columns, the longitudinal moving columns are rotatably connected to the inner sides of the longitudinal moving grooves, longitudinal fixing blocks are threadedly connected to the front and back sides of the outer surfaces of the longitudinal moving columns, transverse moving columns are arranged above the longitudinal moving columns, the transverse moving columns are rotatably connected to the inner sides of the transverse moving grooves, transverse fixing blocks are threadedly connected to the left and right sides of the outer surfaces of the transverse moving columns, guide columns one are fixedly connected to the front and back sides of the bottom parts of the transverse fixing blocks, guide columns two are fixedly connected to the left and right sides of the longitudinal fixing blocks, the guide columns two are located below the guide columns one, and a linkage block is collectively arranged on the outer surfaces of the guide columns one and the guide columns two which are close to each other.

[0013] The further improvement in the technical scheme of the utility model lies in that the longitudinal moving columns are opposite in the screw thread direction, the transverse moving columns are opposite in the screw thread direction, the transverse moving columns and the longitudinal moving columns are provided with driving motors at one end, the guide columns two have a length of half of the transverse moving columns, and the guide columns one have a length of half of the longitudinal moving columns.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. The utility model provides a high-strength square tube diameter reducing device, which can perform pressure diameter reducing operation on the square tube through the hydraulic component, and the hydraulic arm is driven to press down by the hydraulic cylinder to transmit the pressure to the diameter expansion component, and the bottom end of the diameter expansion pressure block enters from the top of the square tube, and the diameter expansion operation is performed on the square tube through the inclined surface under the action of pressure. The diameter reduction steps can be reduced by slowly pressing the diameter expansion pressure block, which reduces labor costs, and the diameter expansion pressure block can be replaced by cooperating with the limit block and the movable isotropic groove, so that the diameter of the square tube can be expanded as needed, thereby improving the scope of use and applicability.

[0016] 2. The utility model provides a high-strength square tube diameter-changing device, which can be moved from the inside of the bottom end of the square tube to the outside through the bottom fixing device to fix the bottom of the square tube to prevent the bottom of the square tube from deforming during the diameter expansion process, and can move the positions of the longitudinal fixing block and the transverse fixing block through the transverse moving column and the longitudinal moving column, so that the internal fixing assembly can fix square tubes with different inner diameters, thereby improving the scope of use. The guide column 2 and the guide column 1 can make the longitudinal fixing block and the transverse fixing block smoother during the movement process through the linkage block, thereby improving the stability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the hydraulic assembly of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the diameter expansion assembly of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the bottom fixing device of the utility model;

[0021] Figure 5 It is a structural diagram of the internal fixing component of the utility model.

[0022] In the figure: 1. Support frame; 2. Hydraulic assembly; 21. Hydraulic cylinder; 22. Hydraulic arm; 23. Diameter expansion assembly; 231. Threaded pressure column; 232. Limiting ring; 233. Diameter expansion pressure block; 234. Limiting block; 235. Moving isotropic groove; 3. Controller; 4. Hydraulic power mechanism; 5. Bottom fixing device; 51. Support pressure plate; 52. Longitudinal moving groove; 53. Transverse moving groove; 54. Internal fixing assembly; 541. Longitudinal fixing block; 542. Transverse fixing block; 543. Longitudinal moving column; 544. Guide column one; 545. Linking block; 546. Transverse moving column; 547. Guide column two. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1-5 As shown, the utility model provides a square tube diameter reducing device with high strength, including a support frame 1, the support frame 1 serves as the basic structure of the entire diameter reducing device, and provides a stable installation platform for other components. The top of the support frame 1 is fixedly connected to a hydraulic component 2, and the hydraulic component 2 provides diameter reducing power. The upper left end of the support frame 1 is fixedly connected to a controller 3, and the controller 3 is an operation control center. A hydraulic power mechanism 4 is provided on the lower left end of the support frame 1, and the hydraulic power mechanism 4 provides high-pressure liquid power for the hydraulic component 2. The bottom inner end of the support frame 1 is fixedly connected to a bottom fixing device 5, and the bottom fixing device 5 is located directly below the hydraulic component 2. The bottom fixing device 5 can stabilize the bottom of the square tube.

[0025] The controller 3 and the hydraulic power mechanism 4 are prior art and will not be explained here.

[0026] like Figure 2 As shown, the utility model provides a technical solution for a square tube diameter-changing device with high strength: preferably, the hydraulic component 2 includes a hydraulic cylinder 21, and the hydraulic cylinder 21 serves as a driving source to transmit power downward. The hydraulic cylinder 21 passes through the middle of the top of the support frame 1 from top to bottom. The outer surface of the hydraulic cylinder 21 is fixedly connected to the top of the support frame 1, and the bottom end of the hydraulic cylinder 21 is fixedly connected to the hydraulic arm 22. When the hydraulic arm 22 moves downward, the pressure from the hydraulic cylinder 21 is directly transmitted to the diameter expansion component 23. The bottom end of the hydraulic arm 22 is fixedly connected to the diameter expansion component 23. The diameter expansion component 23 starts to work under the action of pressure to expand the square tube placed on the bottom fixing device 5.

[0027] like Figure 3 As shown, the utility model provides a technical solution for a square tube diameter reducing device with high strength: preferably, the diameter expansion component 23 includes a threaded pressure column 231, the outer surface of the threaded pressure column 231 is threadedly connected to a limiting ring 232, and the bottom end of the threaded pressure column 231 is provided with an expansion pressure block 233, and the expansion pressure block 233 and one side of the threaded pressure column 231 are jointly provided with a movable aligning groove 235, and the inner side of the movable aligning groove 235 is slidably connected to a limiting block 234, and the limiting block 234 is funnel-shaped.

[0028] like Figure 2-3 As shown, the utility model provides a technical solution for a square tube diameter reducing device with high strength: preferably, the diameter expansion block 233 is an inverted trapezoid, and the area from the bottom end to the top end of the diameter expansion block 233 is an inclined surface.

[0029] After the limit block 234 slides into the inner side of the movable isotropic groove 235 and enters the interior of the threaded pressure column 231, the diameter expansion pressure block 233 and the threaded pressure column 231 can be raised and lowered synchronously under the fixation of the limit block 234, and then the limit ring 232 is rotated to rotate and move downward to cover the movable isotropic groove 235 located on the threaded pressure column 231, blocking the space for the limit block 234 to move out, so that the diameter expansion pressure block 233 and the threaded pressure column 231 remain connected.

[0030] like Figure 4 As shown, the utility model provides a technical solution for a square tube diameter-changing device with high strength: preferably, the bottom fixing device 5 includes a support pressure plate 51, which provides a stable support platform for the entire bottom fixing device 5, and the bottom end of the support pressure plate 51 is fixedly connected to the bottom end of the inner side of the support frame 1. A longitudinal movable groove 52 is opened in the front and back middle of the top of the support pressure plate 51, and a transverse movable groove 53 is opened on the left and right sides of the top of the support pressure plate 51. The longitudinal movable groove 52 and the transverse movable groove 53 are perpendicular to each other. The longitudinal movable groove 52 and the transverse movable groove 53 provide guidance and constraints for the movement of the internal fixing component 54. The internal fixing component 54 is jointly arranged on the inner side of the longitudinal movable groove 52 and the transverse movable groove 53. The longitudinal movable groove 52 and the transverse movable groove 53 jointly determine a two-dimensional plane space. The internal fixing component 54 can be precisely adjusted in position within this plane to adapt to the fixing requirements of square tubes of different sizes.

[0031] like Figure 5 As shown, the utility model provides a technical solution for a square tube diameter reducing device with high strength: preferably, the internal fixing component 54 includes a longitudinal moving column 543, which is rotatably connected to the inner side of the longitudinal moving groove 52, and the front and rear sides of the outer surface of the longitudinal moving column 543 are threadedly connected to the longitudinal fixing block 541, and a transverse moving column 546 is arranged above the longitudinal moving column 543, and the transverse moving column 546 is rotatably connected to the inner side of the transverse moving groove 53, and the left and right sides of the outer surface of the transverse moving column 546 are threadedly connected to the transverse fixing block 542, and the front and rear sides of the bottom of the transverse fixing block 542 are fixedly connected to the guide column 1 544, and the left and right sides of the longitudinal fixing block 541 are fixedly connected to the guide column 2 547, and the guide column 2 547 is located below the guide column 1 544, and the outer surfaces of the two guide columns 1 544 and 547 close to each other are jointly sleeved with a linkage block 545.

[0032] like Figure 4-5 As shown, the utility model provides a technical solution for a square tube diameter-changing device with high strength: preferably, the front and rear thread directions of the longitudinal moving column 543 are opposite, the left and right thread directions of the transverse moving column 546 are opposite, and one end of the transverse moving column 546 and the longitudinal moving column 543 are both provided with a driving motor, the length of the guide column 2 547 is half of the transverse moving column 546, and the length of the guide column 1 544 is half of the longitudinal moving column 543.

[0033] When the longitudinal moving column 543 rotates, the longitudinal fixed block 541 threadedly connected thereto will move toward or away from the longitudinal moving column 543. The distance between the longitudinal fixed blocks 541 can be precisely adjusted according to the length direction size of the square tube so that it fits tightly against the longitudinal inner wall of the square tube, thereby fixing the square tube in the length direction. The transverse moving column 546 on the inside of the transverse moving groove 53 has the same working principle as the longitudinal moving column 543. When the transverse fixing block 542 moves, the guide column 544 will move with the transverse fixing block 542, and adapt to its own movement through the linkage block 545, ensuring that the movement process of the transverse fixing block 542 and the longitudinal fixing block 541 is smoother and more stable, avoiding jamming or misalignment.

[0034] The working principle of this high-strength square tube reducing device is described in detail below.

[0035] like Figure 1-5 As shown, the square tube is placed in the middle of the top of the internal fixing component 54, and then the driving motor of the bottom fixing device 5 is started through the controller 3 according to the size of the square tube, and the spacing between the longitudinal fixing block 541 and the transverse fixing block 542 is adjusted to adapt to the inner diameter of the square tube. A suitable diameter expansion pressure block 233 is selected, and the limit block 234 is slid into the movable isotropic groove 235 and then the limit ring 232 is rotated to fix it. The diameter expansion pressure block 233 is installed on the threaded pressure column 231, and the hydraulic power mechanism 4 is started to make the hydraulic cylinder 21 push the hydraulic arm 22 downward, and the hydraulic arm 22 drives the diameter expansion component 23 downward, and the bottom end of the diameter expansion pressure block 233 enters the square tube, and the inner wall is expanded by using the inclined surface to squeeze. After the diameter is expanded to the required size, the hydraulic power mechanism 4 is stopped, the hydraulic arm 22 stops pressing down, and the square tube is removed to complete the diameter change.

[0036] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-strength square tube diameter reducing device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a hydraulic assembly (2), the upper left end of the support frame (1) is fixedly connected to a controller (3), the lower left end of the support frame (1) is provided with a hydraulic power mechanism (4), the lower inner end of the support frame (1) is fixedly connected to a bottom fixing device (5), and the bottom fixing device (5) is located directly below the hydraulic assembly (2).

2. The high-strength square tube diameter reducing device according to claim 1, characterized in that: The hydraulic assembly (2) comprises a hydraulic cylinder (21), the hydraulic cylinder (21) passing through the middle of the top end of the support frame (1) from top to bottom, the outer surface of the hydraulic cylinder (21) being fixedly connected to the top end of the support frame (1), the bottom end of the hydraulic cylinder (21) being fixedly connected to a hydraulic arm (22), and the bottom end of the hydraulic arm (22) being fixedly connected to a diameter expansion assembly (23).

3. The high-strength square tube diameter reducing device according to claim 2, characterized in that: The diameter expansion component (23) includes a threaded pressure column (231), the outer surface of the threaded pressure column (231) is threadedly connected to a limiting ring (232), and the bottom end of the threaded pressure column (231) is provided with a diameter expansion pressure block (233), and the diameter expansion pressure block (233) and the threaded pressure column (231) are jointly provided with a movable aligning groove (235) on one side, and the inner side of the movable aligning groove (235) is slidably connected to a limiting block (234), and the limiting block (234) is funnel-shaped.

4. The high-strength square tube diameter reducing device according to claim 3, characterized in that: The diameter-expanding pressing block (233) is in the shape of an inverted trapezoid, and the area between the bottom end and the top end of the diameter-expanding pressing block (233) is an inclined surface.

5. The high-strength square tube diameter reducing device according to claim 2, characterized in that: The bottom fixing device (5) includes a supporting plate (51), the bottom end of the supporting plate (51) is fixedly connected to the bottom end of the inner side of the support frame (1), a longitudinal movable groove (52) is provided in the front and rear middle of the top of the supporting plate (51), and a transverse movable groove (53) is provided on the left and right sides of the top of the supporting plate (51), the longitudinal movable groove (52) and the transverse movable groove (53) are perpendicular to each other, and an internal fixing component (54) is provided on the inner sides of the longitudinal movable groove (52) and the transverse movable groove (53).

6. The high-strength square tube diameter reducing device according to claim 5, characterized in that: The internal fixing assembly (54) includes a longitudinal moving column (543), the longitudinal moving column (543) is rotatably connected to the inner side of the longitudinal moving groove (52), the front and rear sides of the outer surface of the longitudinal moving column (543) are threadedly connected to the longitudinal fixing block (541), a transverse moving column (546) is arranged above the longitudinal moving column (543), the transverse moving column (546) is rotatably connected to the inner side of the transverse moving groove (53), the left and right sides of the outer surface of the transverse moving column (546) are threadedly connected to the transverse fixing block (542), the front and rear sides of the bottom of the transverse fixing block (542) are fixedly connected to the guide column 1 (544), the left and right sides of the longitudinal fixing block (541) are fixedly connected to the guide column 2 (547), the guide column 2 (547) is located below the guide column 1 (544), and the outer surfaces of the two mutually adjacent guide columns 1 (544) and 2 (547) are jointly sleeved with a linkage block (545).

7. The high-strength square tube diameter reducing device according to claim 6, characterized in that: The front and rear threads of the longitudinal movable column (543) are in opposite directions, and the left and right threads of the transverse movable column (546) are in opposite directions. A driving motor is provided at one end of each of the transverse movable column (546) and the longitudinal movable column (543). The length of the second guide column (547) is half that of the transverse movable column (546), and the length of the first guide column (544) is half that of the longitudinal movable column (543).

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