Type B steel pressing system and method

Abstract

This invention discloses a B-type steel pressing system and method. The pressing system includes: a support base, a height support platform, multiple fixing blocks, a pressing gantry device, a positioning support unit, and a hydraulic clamping device. The support base has two parallel tracks along its length. The height support platform is used to place the B-type steel. The multiple fixing blocks are configured to closely adhere to the outer surface of the lower flange of the B-type steel. The pressing gantry device includes a vertically downward-pointing top column, which is configured to move up and down to press the web. The hydraulic clamping device is located between the positioning support unit and the upper flange, and is configured to provide pressure to the arched portion of the upper flange to form a variable cross-section. The B-type steel pressing system of this invention can form a variable cross-section and accurately control its length.

Description

Technical Field

[0001] This invention relates to a B-type steel pressing system and method. Background Technology

[0002] Type B steel is a special type of steel used specifically for manufacturing the main beams of train carriages. Literature reports a railway boxcar body comprising a base frame, end walls, side walls, and roof. The central beam of the base frame is a cap-shaped structure welded from two Type B steel beams. The webs at both ends of the Type B steel are cut open and fitted with insert plates, creating a variable cross-section structure where the cross-section of the traction beams at both ends is larger than that of the middle section. This allows the boxcar body to be matched with bogies equipped with large-diameter wheels.

[0003] The problem that needs to be solved is how to use B-type steel as raw material and form the variable cross section of arched B-type steel through a pressing system with a certain structure. Summary of the Invention

[0004] In view of this, one object of the present invention is to provide a B-type steel pressing system that can form B-type steel with variable cross-section and can accurately control the length of the variable cross-section. Another object of the present invention is to provide a method for obtaining B-type steel with variable cross-section using the pressing system described above.

[0005] The objective of this invention is achieved through the following technical solution.

[0006] On one hand, the present invention provides a B-type steel pressing system, wherein the B-type steel has a web, an upper flange, and a lower flange, wherein the upper flange and the lower flange are both perpendicular to the web; the B-type steel pressing system includes:

[0007] The support base has two parallel tracks along its length.

[0008] A height support platform is disposed near the middle of the support base along the length direction of the support base for placing the B-shaped steel; the top surface of the height support platform is used to place the web plate, and one side wall of the height support platform is configured to be able to closely fit the inner side surface of the lower wing face.

[0009] Multiple fixing blocks are evenly distributed on the support base and are configured to fit tightly against the outer side of the lower wing of the B-shaped steel.

[0010] A pressing gantry device is mounted on the support base and is configured to move on the track; the pressing gantry device includes a vertically downward top column; the top column is configured to move up and down to press the web plate;

[0011] A positioning support unit is disposed on the support base; the positioning support unit is spaced apart from the upper wing surface.

[0012] A hydraulic clamping device, disposed between the positioning support unit and the upper wing section, is configured to apply pressure to the arched portion forming the upper wing section to create a variable cross-section. This facilitates the formation of an arched variable cross-section B-shaped steel and allows for precise control of the variable cross-section length.

[0013] In this invention, the detailed structure of the pressing gantry device is not described in detail here, but those known in the art can be used.

[0014] According to the B-type steel pressing system of the present invention, preferably, there are two positioning support units, positioned near both ends of the upper wing surface. That is, the positioning support units are located near the portion of the upper wing surface used to form the arch. This provides support for the hydraulic clamping device, facilitating the application of pressure to the upper wing surface by the hydraulic clamping device.

[0015] According to the B-type steel pressing system of the present invention, preferably, the positioning support unit includes a crossbeam and vertical columns; there are two vertical columns, which are arranged parallel to each other on the support base; the crossbeam is arranged vertically above the two vertical columns, and the length direction of the crossbeam is consistent with the length direction of the upper wing surface. This can save raw materials and reduce costs.

[0016] According to the B-type steel pressing system of the present invention, preferably, the B-type steel pressing system further includes a reinforcing positioning block, which is disposed close to the positioning support unit and away from the hydraulic clamping device. This can be used to fix the positioning support unit.

[0017] According to the B-type steel pressing system of the present invention, preferably, the cross-section of the reinforcing positioning block is a right-angled triangle, with one right-angled side in close contact with the positioning support unit. This saves raw materials. The reinforcing positioning block is similar to a reinforcing rib.

[0018] According to the B-type steel pressing system of the present invention, preferably, the cross-section of the fixing block is a right-angled triangle, wherein one of the right-angled sides is configured to fit tightly against the outer surface of the lower wing; the height of the fixing block is higher than the height of the height support platform. The fixing block serves two purposes: firstly, it can press the lower wing tightly, and secondly, it can support the clamping mechanism.

[0019] According to the B-type steel pressing system of the present invention, preferably, the B-type steel pressing system further includes a clamping mechanism disposed between the fixing block and the arched portion of the upper wing surface, for clamping the arched portion of the upper wing surface; the clamping mechanism and the hydraulic clamping device are respectively disposed on both sides of the upper wing surface. This ensures the length of the variable cross-section. Multiple clamping mechanisms are provided and evenly distributed.

[0020] In the B-type steel pressing system according to the present invention, preferably, the tightening mechanism is a lead screw structure. The lead screw structure can be any type known in the art.

[0021] According to the B-type steel pressing system of the present invention, preferably, the B-type steel pressing system further includes a clamping device, which includes a fixed column, a support arm, and a lead screw; the fixed column is disposed on the support base, one end of the support arm is disposed at the top of the fixed column, and the other end has a screw hole that matches the lead screw; the lead screw is vertically arranged and used to clamp the web; the lead screw is dumbbell-shaped. This allows for better fixation of the web, enabling more accurate control of the length of the variable cross-section. In some embodiments, the fixed column is vertically arranged.

[0022] On the other hand, the present invention also provides a method for obtaining a variable cross section of B-type steel using the B-type steel pressing system described above, comprising the following steps:

[0023] 1) Place the web of the B-type steel along its length on the height support platform, such that the inner side of the lower wing is in close contact with one side wall of the height support platform;

[0024] 2) Press the fixing block against the outer side of the lower wing surface;

[0025] 3) Press the top column of the pressing gantry device tightly against the web plate; form long straight notches at both ends of the web plate of the B-shaped steel along its length direction, and the long straight notches are close to the upper wing surface, so that the upper wing surface at both ends expands outward to form an arched part; use two plates to fill the long straight notches;

[0026] 4) The hydraulic clamping device is used to gradually apply pressure to the arched portion of the upper wing to form a variable cross-section. This improves the utilization rate of raw materials while forming a variable cross-section of a set length.

[0027] In this invention, when a long straight notch is cut out, a portion of the upper wing surface is also cut out at the same time. One end of this portion of the upper wing surface is a fixed end, and the other end is a free end.

[0028] In this invention, the cross-section of the B-shaped steel is Z-shaped, and it is a B-shaped steel with a uniform cross-section. The B-shaped steel can be 310 B-shaped steel conforming to YB / T5182-2006, meaning the width of the web of this B-shaped steel is 310mm. The length of the B-shaped steel can be approximately 16m. The length of a single long straight notch is 2-3m.

[0029] The B-type steel pressing system and method of the present invention can obtain B-type steel with variable cross-section and can more accurately control the length of the variable cross-section. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the overall structure of the B-type steel pressing system.

[0031] Figure 2 for Figure 1 A schematic diagram of the AA-direction section.

[0032] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0033] Figure 4 This is a schematic diagram of the cross-section of type B steel.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Support base; 2-Pressure gantry device; 21-Top column; 3-Positioning support unit; 4-Pressure device; 41-Fixing column; 42-Support arm; 43-Screw; 5-Hydraulic tightening device; 6-Height support platform; 7-Tightening mechanism; 8-Reinforcing positioning block; 9-Fixing block;

[0036] 110 - Sternum, 120 - Upper wing face, 130 - Lower wing face. Detailed Implementation

[0037] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0038] Example 1

[0039] Figure 1 This is a schematic diagram of the overall structure of the B-type steel pressing system. Figure 2 for Figure 1 A schematic diagram of the AA-direction section. Figure 3 for Figure 2 A magnified view of a portion of the image. Figure 4 This is a schematic diagram of the cross-section of type B steel.

[0040] like Figure 1 and Figure 2 As shown, the B-type steel pressing system of this embodiment includes a support base 1, a pressing gantry device 2, a positioning support unit 3, a hydraulic clamping device 5, a height support platform 6, a clamping mechanism 7, a reinforcing positioning block 8, and a fixing block 9.

[0041] The support base 1 has two parallel tracks along its length to support other related equipment and devices.

[0042] like Figure 1 , Figure 2 and Figure 4As shown, a height support platform 6 is positioned near the middle of the support base 1 along its length and is used to hold a B-shaped steel section. The B-shaped steel section has a web 110, an upper flange 120, and a lower flange 130. Both the upper flange 120 and the lower flange 130 are perpendicular to the web 110. The web 110 is located on the top surface of the height support platform 6, and the inner side of the lower flange 130 is in close contact with one sidewall of the height support platform 6.

[0043] like Figure 1 As shown, there are multiple fixing blocks 9, which are evenly distributed on the support base 1 and closely attached to the outer side of the lower flange 130 of the B-shaped steel. The cross-section of the fixing block 9 is a right triangle, with one right-angled side closely attached to the outer side of the lower flange 130. The height of the fixing block 9 is higher than the height of the height support platform 6.

[0044] like Figure 2 As shown, the pressing gantry device 2 is mounted on the support base 1 and can move on the track. The pressing gantry device 2 includes a vertically downward-pointing top column 21. The top column 21 can move up and down. The top column 21 can press the web plate 110.

[0045] like Figure 1 and Figure 2 As shown, the positioning support unit 3 is disposed on the support base 1, spaced apart from the upper wing surface 120. There are two positioning support units 3, symmetrically arranged, each located near one end of the upper wing surface 120. Each positioning support unit 3 includes a crossbeam and two vertical columns. Two vertical columns are arranged parallel to each other on the support base 1. The crossbeam is vertically positioned above the two vertical columns, and its length direction is consistent with the length direction of the upper wing surface 120.

[0046] like Figure 1 and Figure 2 As shown, the hydraulic clamping device 5 is disposed between the positioning support unit 3 and the upper flange 120, and is used to provide pressure to the arched part of the upper flange 120 during the process of forming the B-shaped steel into an arched variable cross-section B-shaped steel, so as to form a variable cross-section of a set length. In use, one end of the hydraulic clamping device 5 abuts against the crossbeam 31 of the positioning support unit 3, and the other end clamps against the upper flange 120.

[0047] like Figure 1 and Figure 2 As shown, the reinforcing positioning block 8 is set close to the positioning support unit 3 and away from the hydraulic clamping device 5. The cross-section of the reinforcing positioning block 8 is a right triangle, with one right-angled side close to the positioning support unit 3.

[0048] A clamping mechanism 7 is positioned between the fixed block 9 and the arched portion of the upper wing surface 120, used to clamp the arched portion of the upper wing surface 120. The clamping mechanism 7 and the hydraulic clamping device 5 are located on opposite sides of the upper wing surface 120. The clamping mechanism 7 is a lead screw structure. In use, both ends of the clamping mechanism 7 clamp the arched portion of the upper wing surface 120 and the fixed block 9, respectively. There are multiple clamping mechanisms 7, evenly distributed.

[0049] The following describes a method for obtaining a variable cross-section of a B-type steel using the B-type steel pressing system described in Example 1, including the following steps:

[0050] 1)Reference Figure 2 and Figure 4 As shown, the web 110 of the B-type steel is placed on the height support platform 6 along its length, such that the inner side of the lower flange 130 is in close contact with one side wall of the height support platform 6.

[0051] 2)Reference Figure 1 As shown, the fixing block 9 is pressed against the outer side of the lower wing face 130;

[0052] 3)Reference Figure 1 and Figure 2 As shown, the top column 21 of the pressing gantry device 2 is pressed against the web plate 110; long straight notches are formed at both ends of the web plate 110 of the B-shaped steel along its length direction, and the long straight notches are close to the upper wing surface 120, so that the upper wing surface 120 at both ends expands outward to form an arched part; two plates are used to fill the long straight notches.

[0053] 4) A hydraulic clamping device 5 is used to gradually apply pressure to the arched portion of the upper wing 120 to form a variable cross-section of a set length. The two ends of the clamping mechanism 7 are clamped to the arched portion of the upper wing 120 and the fixing block 9 respectively to maintain the length of the variable cross-section.

[0054] Example 2

[0055] Except for the following settings, everything else is the same as in Example 1:

[0056] Figure 3 for Figure 2 A magnified view of a portion of the image. For example... Figure 3 As shown, the B-type steel pressing system of this embodiment also includes a clamping device 4, which is a screw clamping structure, including a fixed column 41, a support arm 42, and a screw 43. The fixed column 41 is vertically mounted on the support base 1, one end of the support arm 42 is mounted on the fixed column 41, and the other end has a screw hole that matches the screw 43. The screw 43 is vertically mounted. The screw 43 is dumbbell-shaped. The screw 43 is used to clamp the web 110.

[0057] In the process of obtaining the B-type steel variable cross section using the B-type steel pressing system described in Example 2, the web plate 110 can be pressed simultaneously using the screw 43 of the pressing device 4, and the remaining steps are the same as those in Example 1.

[0058] This invention is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this invention fall within the scope of this invention.

Claims

1. A B-type steel pressing system, wherein the B-type steel has a web, an upper flange, and a lower flange, wherein the upper flange and the lower flange are both perpendicular to the web; characterized in that, The B-type steel pressing system includes: The support base has two parallel tracks along its length. A height support platform is disposed near the middle of the support base along the length direction of the support base for placing the B-shaped steel; the top surface of the height support platform is used to place the web plate, and one side wall of the height support platform is configured to be able to closely fit the inner side surface of the lower wing face. Multiple fixing blocks are evenly distributed on the support base and are configured to fit tightly against the outer side of the lower wing of the B-shaped steel. A pressing gantry device is mounted on the support base and is configured to move on the track; the pressing gantry device includes a vertically downward top column; the top column is configured to move up and down to press the web plate; A positioning support unit is disposed on the support base; the positioning support unit is spaced apart from the upper wing surface. A hydraulic clamping device is disposed between the positioning support unit and the upper wing surface, and is configured to provide pressure to the arched portion of the upper wing surface to form a variable cross-section of a set length. A clamping mechanism is disposed between the fixed block and the arched portion of the upper wing surface, and is used to clamp the arched portion of the upper wing surface; the clamping mechanism and the hydraulic clamping device are respectively disposed on both sides of the upper wing surface; the clamping mechanism is a screw structure; The clamping device includes a fixed column, a support arm, and a lead screw; the fixed column is disposed on the support base, one end of the support arm is disposed at the top of the fixed column, and the other end has a screw hole that matches the lead screw; the lead screw is vertically disposed and is used to clamp the web plate.

2. The B-type steel pressing system according to claim 1, characterized in that, The positioning support unit consists of two units, positioned near the two ends of the upper wing surface.

3. The B-type steel pressing system according to claim 2, characterized in that, The positioning support unit includes a crossbeam and two vertical columns; the two vertical columns are arranged parallel to each other on the support base; the crossbeam is arranged vertically above the two vertical columns, and the length direction of the crossbeam is consistent with the length direction of the upper wing surface.

4. The B-type steel pressing system according to claim 3, characterized in that, The B-type steel pressing system also includes a reinforcing positioning block, which is set close to the positioning support unit and away from the hydraulic clamping device.

5. The B-type steel pressing system according to claim 4, characterized in that, The cross-section of the reinforcing positioning block is a right-angled triangle, with one right-angled side in close contact with the positioning support unit.

6. The B-type steel pressing system according to claim 5, characterized in that, The cross-section of the fixing block is a right-angled triangle, with one of the right-angled sides designed to fit snugly against the outer surface of the lower wing; the height of the fixing block is higher than the height of the height support platform.

7. The B-type steel pressing system according to claim 6, characterized in that, The lead screw is dumbbell-shaped.

8. A method for obtaining a variable cross-section of a B-shaped steel using the B-shaped steel pressing system according to any one of claims 1 to 7, characterized in that, Includes the following steps: 1) Place the web of the B-type steel along its length on the height support platform, such that the inner side of the lower wing face is in close contact with one side wall of the height support platform; 2) Press the fixing block against the outer side of the lower wing surface; 3) Press the top column of the pressing gantry device tightly against the web plate; form long straight notches at both ends of the web plate of the B-shaped steel along its length direction, and the long straight notches are close to the upper wing surface, so that the upper wing surface at both ends expands outward to form an arched part; use two plates to fill the long straight notches; 4) The hydraulic clamping device is used to gradually apply pressure to the arched part of the upper wing surface to form a variable cross section of a set length.

Images