Bridge template cutter

Abstract

The present invention discloses a bridge template cutter, which belongs to the field of bridge technology. A bridge template cutter includes a flame cutting table, wherein both sides of the flame cutting table are provided with fixed components, and a positioning component is provided on the side of the fixed component close to the flame cutting table, and a scanning device is connected between the rear sides of the two groups of the fixed components, and the scanning device includes a No. 1 linear slide, and a movable No. 1 moving block is provided on the side of the No. 1 linear slide close to the flame cutting table, and a laser scanner is fixedly connected to the surface of the No. 1 moving block, and a No. 2 linear slide that can move forward and backward is connected between the tops of the two groups of the fixed components through a slide rail, and a movable No. 2 moving block is provided at the bottom of the No. 2 linear slide. The present invention designs a device that can quickly identify and cut the type of bridge template, which saves time and effort and ensures the maximum strength of the bridge template.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and more particularly to a bridge template cutter. Background Art

[0002] As the name suggests, bridge formwork refers to steel formwork used in bridge projects, such as highway bridges, viaducts, and overpasses. Bridge formwork is categorized into highway bridge formwork and railway bridge formwork. Depending on the specific conditions, bridge formwork can be further divided into single- and double-chamber box girders, wheat-shaped piers, pier formwork, abutments, cap beams, and T-shaped bridge formwork. While bridge formwork is typically manufactured to uniform specifications, the construction process often requires cutting based on specific requirements. Since bridge formwork is often made from thick steel, flame cutting is a cost-effective and efficient method.

[0003] However, due to the different shapes and structures of bridge formwork, some are flat and some are cylindrical, the flat formwork only needs to be cut on one side to split the entire formwork, while the cylindrical structure requires 360° cutting of the cylinder, which requires the cutting device to rotate around the bridge formwork for cutting. In the past, the cutting work was often done by workers, and the cutting process required workers to cut in a line, which had high technical requirements for workers, especially the cylindrical formwork, which required workers to rotate and cut around the cylindrical structure, making the work extremely difficult. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] The purpose of the present invention is to provide a bridge template cutter to solve the problems raised in the above background technology:

[0006] However, due to the different shapes and structures of bridge formwork, some are flat and some are cylindrical, the flat formwork only needs to be cut on one side to split the entire formwork, while the cylindrical structure requires 360° cutting of the cylinder, which requires the cutting device to rotate around the bridge formwork for cutting. In the past, the cutting work was often done by workers, and the cutting process required workers to cut in a line, which had high technical requirements for workers, especially the cylindrical formwork, which required workers to rotate and cut around the cylindrical structure, making the work extremely difficult.

[0007] 2. Technical solution

[0008] A bridge template cutter includes a flame cutting table, wherein fixing components are provided on both sides of the flame cutting table, a positioning component is provided on the side of the fixing component close to the flame cutting table, and a scanning device is connected between the rear sides of the two groups of fixing components.

[0009] Preferably, the scanning device includes a No. 1 linear slide, a side of the No. 1 linear slide close to the flame cutting table is provided with a movable No. 1 moving block, and a surface of the No. 1 moving block is fixedly connected to a laser scanner;

[0010] Preferably, a No. 2 linear slide that can move forward and backward is connected between the tops of the two groups of fixed components through a slide rail, and a movable No. 2 moving block is provided at the bottom of the No. 2 linear slide. The bottom of the No. 2 moving block is connected to a hydraulic telescopic rod, and the bottom of the hydraulic telescopic rod is connected to a cutting torch.

[0011] Preferably, the flame cutting table includes a hollow groove, the top of the hollow groove is connected to an inclined plate, the angle between the edge of the hollow groove and the inclined plate is 45°, the front and rear end frames of the hollow groove are composed of pull-out plates, and the inclined plate is spliced ​​by several thin plates, and the end point of the pull-out plate is located on the extension line of the splicing line of the thin plates.

[0012] Preferably, the fixing assembly includes a support plate, which is located on both sides of the flame cutting table, and hydraulic cylinders are provided at the four corners of the support plate away from the flame cutting table, the output end of the hydraulic cylinder is connected to a hydraulic rod, the front end of the hydraulic rod is connected to an extrusion plate through the support plate, the middle part of the extrusion plate is threadedly connected to a side close to the support plate with an electric motor, the output end of the motor is connected to a positioning plate through the extrusion plate, a positioning assembly is provided on the side of the positioning plate close to the flame cutting table, and a circular groove is provided in the middle part of the support plate to facilitate the movement of the motor.

[0013] Preferably, the positioning assembly includes several retractable spring telescopic rods, and the spring telescopic rods include an outer sleeve, which is fixedly mounted on a side of the positioning plate close to the flame cutting table, and an inner rod is inserted through the middle of the outer sleeve, and a missile head is provided at the end of the inner rod away from the outer sleeve, and a spring is connected between the missile head and the outer sleeve, and the spring is sleeved on the outside of the inner rod, and an inner stop block is provided on the outside of the end of the inner rod located inside the outer sleeve, and a moving contact is provided at the end of the inner rod close to the positioning plate, and a fixed contact corresponding to the moving contact is provided on the part of the positioning plate located inside the outer sleeve.

[0014] Preferably, side limit plates are provided on both sides of the positioning plate, and a bottom limit plate is provided at the bottom of the positioning plate. The side limit plates and the bottom limit plate are both fixedly connected to the extrusion plate. A multi-stage telescopic rod is provided at the bottom of the side limit plate, and a connecting plate is fixedly connected to the bottom of the multi-stage telescopic rod. The connecting plate is fixedly connected to the outer side of the hollow groove.

[0015] Preferably, a lift is provided at the bottom of the flame cutting table, the top of the lift is located in the middle of the flame cutting table and both ends of the lift are at a certain distance from both ends of the flame cutting table.

[0016] Preferably, the cutting torch includes an outer shell, a fixed sleeve is provided on the outer side of the outer shell, the fixed sleeve is fixedly connected to the bottom output end of the hydraulic telescopic rod, an oxygen pipe and a gas pipe are inserted into the interior of the fixed sleeve, the rear ends of the oxygen pipe and the gas pipe are respectively connected to hoses, regulating valves are respectively provided on the outer sides of the oxygen pipe and the gas pipe, and the front ends of the oxygen pipe and the gas pipe are connected to the same nozzle.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1) The present invention utilizes a laser scanner to perform distance scanning on the surface of the bridge template to identify the shapes of various parts of the surface of the bridge template and determine the position of the supporting steel, thereby calculating the best cutting route through the built-in calculation module, thereby retaining its maximum supporting strength during the process of cutting the bridge template.

[0020] 2) The positioning plate of the present invention can rotate. After clamping the bridge template, it can drive the bridge template to rotate, thereby performing 360° cutting on the cylindrical bridge template. This requires aligning the central axis of the cylindrical bridge template with the central axis of the positioning plate. The present invention designs a liftable flame cutting table that can lift the bridge template to the same horizontal height as the central axis of the bridge template and the central axis of the positioning plate, making it convenient to cut the bridge template.

[0021] 3) When the positioning plate fixes and squeezes the bridge formwork, the position where the spring telescopic rod contacts the edge of the bridge formwork will shrink, while the non-contact position remains unchanged. The unchanged spring telescopic rod will surround the edge of the bridge formwork, providing force to the outside of the edge of the bridge formwork toward the inside of the bridge formwork. The contracted spring telescopic rod squeezes the bridge formwork, squeezing and fixing the bridge formwork in multiple directions, so that the bridge formwork remains stable during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 A detailed view of the flame cutting table of the present invention;

[0024] Figure 3 It is an expanded view of the fixing assembly of the present invention;

[0025] Figure 4 A detailed diagram of the positioning assembly of the present invention;

[0026] Figure 5 A diagram showing the connection between the flame cutting table and the fixing assembly of the present invention;

[0027] Figure 6 for Figure 5 A magnified view of point A in the figure;

[0028] Figure 7 A schematic diagram of a cutting torch according to the present invention;

[0029] Explanation of the reference numerals in the figure: 1. Flame cutting table; 101. Hollow groove; 102. Inclined plate; 103. Pull-out plate; 104. Thin plate; 2. Fixing assembly; 201. Support plate; 202. Extrusion plate; 203. Positioning plate; 204. Hydraulic cylinder; 205. Circular groove; 206. Motor; 207. Side limit plate; 208. Bottom limit plate; 209. Multi-stage telescopic rod; 210. Connecting plate; 211. Outer sleeve; 212. Inner rod; 213. Spring Spring; 214, inner stop block; 215, moving contact; 216, fixed contact; 217, missile head; 3, linear slide No. 1; 301, moving block No. 1; 302, laser scanner; 4, linear slide No. 2; 401, moving block No. 2; 402, hydraulic telescopic rod; 5, cutting torch; 501, housing; 502, oxygen tube; 503, gas tube; 504, nozzle; 505, hose; 506, regulating valve; 507, fixed sleeve; 6, lift. DETAILED DESCRIPTION

[0030] Example 1:

[0031] See also Figure 1 、 Figure 7 A bridge template cutter includes a flame cutting table 1, characterized in that: a fixing assembly 2 is provided on both sides of the flame cutting table 1, a positioning assembly is provided on the side of the fixing assembly 2 close to the flame cutting table 1, and a scanning device is connected between the rear sides of the two sets of fixing assemblies 2.

[0032] The scanning device includes a linear slide No. 1 3, and a movable moving block No. 1 301 is provided on the side of the linear slide No. 1 close to the flame cutting table 1. The surface of the moving block No. 1 301 is fixedly connected to a laser scanner 302; the laser scanner 302 can be carried by the moving block No. 1 301 to move on the surface of the linear slide No. 1 3, thereby scanning the surface of the bridge formwork.

[0033] A No. 2 linear slide 4 that can move forward and backward is connected between the tops of the two groups of fixed components 2 through a slide rail. A movable No. 2 moving block 401 is provided at the bottom of the No. 2 linear slide 4. The bottom of the No. 2 moving block 401 is connected to a hydraulic telescopic rod 402. The bottom of the hydraulic telescopic rod 402 is connected to a cutting torch 5. The cutting torch 5 can perform high-temperature flame cutting on the bridge formwork.

[0034] The cutting torch 5 includes a shell 501, and a fixed sleeve 507 is provided on the outer side of the shell 501. The fixed sleeve 507 is fixedly connected to the bottom output end of the hydraulic telescopic rod 402. An oxygen tube 502 and a gas tube 503 are inserted into the interior of the fixed sleeve 507. The rear ends of the oxygen tube 502 and the gas tube 503 are respectively connected to a hose 505. The outer sides of the oxygen tube 502 and the gas tube 503 are respectively provided with a regulating valve 506. The front ends of the oxygen tube 502 and the gas tube 503 are connected to the same nozzle 504.

[0035] The fixing assembly 2 includes a support plate 201, which supports the entire fixing assembly 201. The support plate 201 is located on both sides of the flame cutting table 1. Hydraulic cylinders 204 are provided at the four corners of the support plate 201 away from the flame cutting table 1. The output end of the hydraulic cylinder 204 is connected to a hydraulic rod, and the front end of the hydraulic rod passes through the support plate 201 and is connected to the extrusion plate 202.

[0036] The surface of the bridge formwork is often designed with I-shaped steel or T-shaped steel supports to enhance the overall strength. These supports are often arranged in rows. During the cutting process, the positions of the support steels must be avoided, and the optimal cutting point is the middle position between two adjacent support steels. This ensures the maximum support strength of the bridge formwork.

[0037] The present invention utilizes a laser scanner 302 to perform distance scanning on the surface of the bridge template to identify the shapes of various locations on the surface of the bridge template and determine the position of the supporting steel, thereby calculating the optimal cutting route through a built-in calculation module, thereby retaining its maximum supporting strength during the process of cutting the bridge template.

[0038] This embodiment can cut flat-plate bridge templates. During the cutting process, only one side of the flat plate needs to be cut to complete the overall cutting. The steps for use are as follows: first, place the bridge template on the surface of the flame cutting table 1, and then the hydraulic cylinder 204 is operated to drive the hydraulic rod to extend and drive the extrusion plate 202 to extrude the bridge template, thereby fixing the bridge template during the cutting process, and then use the laser scanner 302 to scan the bridge template, and the No. 1 linear slide 3 drives the No. 1 moving block 301 to move, thereby driving the laser scanner 302 to move and scan, and then use the cutting torch 5 to cut the bridge template.

[0039] Example 2:

[0040] Please refer to Figure 3, combined with the basis of Example 1, the difference is that a motor 206 is threadedly connected to the side of the middle of the extrusion plate 202 close to the support plate 201, and the output end of the motor 206 passes through the extrusion plate 202 and is connected to the positioning plate 203. The positioning plate 203 is circular, and a circular groove 205 is provided in the middle of the support plate 201 to facilitate the movement of the motor 206. When the motor 206 is started, it can drive the positioning plate 203 to rotate, thereby driving the bridge template between the two positioning plates 203 to rotate.

[0041] Furthermore, side limiting plates 207 are provided on both sides of the positioning plate 203, and a bottom limiting plate 208 is provided at the bottom of the positioning plate 203. The side limiting plates 207 and the bottom limiting plates 208 fix the positioning plate 203 without hindering its rotation. The side limiting plates 207 and the bottom limiting plates 208 are both fixedly connected to the extrusion plate 202.

[0042] For further information, see Figure 2 The flame cutting table 1 includes a hollow groove 101, and the top of the hollow groove 101 is connected to an inclined plate 102. The angle between the edge of the hollow groove 101 and the inclined plate 102 is 45 degrees. During the process of cutting the bridge template with a cutting torch, the flame will pass through the inclined plate 102 and enter the interior of the hollow groove 101. The hollow groove is set to avoid direct contact between the high-temperature flame and the support plate of the flame cutting table 1, thereby improving the service life of the flame cutting table 1. There are gaps between the inclined plates 102, so that the debris in the cutting process can enter. The inclined plate 102 is inserted into the interior of the hollow groove 101, thereby improving the service life of the inclined plate 102 and avoiding heat accumulation. The front and rear end frames of the hollow groove 101 are composed of a pull-out plate 103, so that the hollow groove 101 has a folding function. The inclined plate 102 is spliced ​​by several thin plates 104, and the end point of the pull-out plate 103 is located on the extension line of the splicing line of the thin plates 104. During the folding process of the hollow groove 101, the inclined plate 102 will not affect the folding of the hollow groove 101, and its thin plates 104 will also be folded together.

[0043] For further information, see Figure 2 、 Figure 6 A lift 6 is provided at the bottom of the flame cutting table 1. The top of the lift 6 is located in the middle of the flame cutting table 1 and the two ends of the lift 6 are at a certain distance from the two ends of the flame cutting table 1, ensuring that the flame cutting table 1 has a certain telescopic ability and that the flame cutting table 1 will not be affected by the lift 6 when it is shortened; a multi-stage telescopic rod 209 is provided at the bottom of the side limit plate 207. The multi-stage telescopic rod 209 is provided to ensure the connection between the side limit plate 207 and the flame cutting table 1 and will not be affected by the lifting and lowering of the flame cutting table 1. The bottom of the multi-stage telescopic rod 209 is fixedly connected to a connecting plate 210, and the connecting plate 210 is fixedly connected to the outer side of the hollow groove 101.

[0044] The positioning plate 203 of the present invention can rotate. After clamping the bridge template, it can drive the bridge template to rotate, thereby performing 360° cutting on the cylindrical bridge template. This requires aligning the central axis of the cylindrical bridge template with the central axis of the positioning plate 203. The present invention designs a liftable flame cutting table 1, which can lift the bridge template to the same horizontal height as the central axis of the bridge template and the central axis of the positioning plate 203, so as to facilitate cutting of the bridge template.

[0045] The cylindrical bridge template is divided into circular and polygonal cross sections. The cutting steps for the circular cross section bridge template are as follows:

[0046] The first step is to place the bridge template in the middle position of the flame cutting table 1, and then use the elevator 6 to drive the bridge template to rise to the same level as the center axis of the bridge template and the center axis of the positioning plate 203.

[0047] In the second step, the two positioning plates 203 press the bridge template inward to clamp the bridge template.

[0048] In the third step, the cutting torch 5 starts to work and cuts the bridge template. During this process, the positioning plate 203 rotates to drive the bridge template to rotate, realizing cutting while rotating, thereby performing all-round cutting on the bridge template.

[0049] It should be noted that, during the above-mentioned cutting process, the flame cutting table 1 always provides support for the bridge formwork.

[0050] The steps for cutting a bridge template with a polygonal cross section are as follows:

[0051] The first step is to place the bridge template in the middle position of the flame cutting table 1, and then use the elevator 6 to drive the bridge template to rise to the same level as the center axis of the bridge template and the center axis of the positioning plate 203.

[0052] In the second step, the two positioning plates 203 press the bridge template inward to clamp the bridge template.

[0053] In the third step, the cutting torch 5 starts to work and cuts a single side of the bridge template.

[0054] In the fourth step, the flame cutting table 1 is lowered a certain distance, the positioning plate 203 is rotated a certain angle so that the other side of the bridge template faces the cutting torch 5, and then the flame cutting table 1 returns to its original position.

[0055] Step 5. Repeat steps 3 and 4 above until the bridge template is cut.

[0056] Example 3:

[0057] Please refer to 4. The difference between the basis of embodiments 1 and 2 is that a positioning assembly is provided on the side of the positioning plate 203 close to the flame cutting table 1. The positioning assembly includes several retractable spring telescopic rods. The spring telescopic rods include an outer sleeve 211. The outer sleeve 211 is fixedly installed on the side of the positioning plate 203 close to the flame cutting table 1. An inner rod 212 is inserted through the middle of the outer sleeve 211. A missile head 217 is provided at the end of the inner rod 212 away from the outer sleeve 211. A spring 213 is connected between the missile head 217 and the outer sleeve 211. The spring 213 is sleeved on the outside of the inner rod 212. An inner stop block 214 is provided on the outside of the end of the inner rod 212 located inside the outer sleeve 211. A moving contact 215 is provided at the end of the inner rod 212 close to the positioning plate 203. The part of the positioning plate 203 located inside the outer sleeve 211 is provided with a fixed contact 216 corresponding to the moving contact 215.

[0058] When the positioning plate 203 fixes and squeezes the bridge template, the position where the spring telescopic rod contacts the edge of the bridge template will shrink, while the non-contact position remains unchanged. The unchanged spring telescopic rod will surround the edge of the bridge template, providing force to the outside of the edge of the bridge template toward the inside of the bridge template. The contracted spring telescopic rod squeezes the bridge template, squeezing and fixing the bridge template in multiple directions, so that the bridge template remains stable during rotation.

[0059] When the spring telescopic rod contracts, the moving contact 215 and the fixed contact 216 will contact and upload a signal. The calculation module calculates the position of the contacted fixed contact 216, thereby identifying the cross-sectional shape of the bridge template and improving the cutting accuracy of the cutting torch 5.

[0060] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge template cutter, comprising a flame cutting table (1), characterized in that: Both sides of the flame cutting table (1) are provided with fixed components (2), a side of the fixed components (2) close to the flame cutting table (1) is provided with a positioning component, a scanning device is connected between the rear sides of the two groups of fixed components (2), and the scanning device includes a No. 1 linear slide (3), a side of the No. 1 linear slide (3) close to the flame cutting table (1) is provided with a movable No. 1 moving block (301), and a surface of the No. 1 moving block (301) is fixedly connected to a laser scanner (302); A second linear slide (4) that can move forward and backward is connected between the tops of the two groups of fixed components (2) via a slide rail, a movable second moving block (401) is provided at the bottom of the second linear slide (4), a hydraulic telescopic rod (402) is connected to the bottom of the second moving block (401), and a cutting torch (5) is connected to the bottom of the hydraulic telescopic rod (402); The fixing assembly (2) comprises a support plate (201), the support plate (201) being located on both sides of the flame cutting table (1), a hydraulic cylinder (204) being provided at the four corners of the side of the support plate (201) away from the flame cutting table (1), an output end of the hydraulic cylinder (204) being connected to a hydraulic rod, a front end of the hydraulic rod passing through the support plate (201) being connected to an extrusion plate (202), a middle portion of the extrusion plate (202) being threadedly connected to a side close to the support plate (201) an electric motor (206), an output end of the electric motor (206) passing through the extrusion plate (202) being connected to a positioning plate (203), a positioning assembly being provided on a side of the positioning plate (203) close to the flame cutting table (1), and a circular groove (205) being provided in the middle portion of the support plate (201) for facilitating movement of the electric motor (206); The motor (206) is started to drive the positioning plate (203) to rotate, thereby driving the bridge template between the two positioning plates (203) to rotate; The positioning assembly includes a plurality of retractable spring telescopic rods, the spring telescopic rods including an outer sleeve (211), the outer sleeve (211) being fixedly mounted on a side of the positioning plate (203) close to the flame cutting table (1), an inner rod (212) being inserted through the middle of the outer sleeve (211), a missile head (217) being provided at one end of the inner rod (212) away from the outer sleeve (211), and the missile head (217) being connected to the outer sleeve (211). A spring (213) is connected, and the spring (213) is sleeved on the outside of the inner rod (212). An inner stopper (214) is provided on the outside of one end of the inner rod (212) located inside the outer sleeve (211). A moving contact (215) is provided on one end of the inner rod (212) close to the positioning plate (203). A fixed contact (216) corresponding to the moving contact (215) is provided on the part of the positioning plate (203) located inside the outer sleeve (211).

2. A bridge template cutter according to claim 1, characterized in that: The flame cutting table (1) comprises a hollow groove (101), the top of the hollow groove (101) is connected to an inclined plate (102), the angle between the edge of the hollow groove (101) and the inclined plate (102) is 45 degrees, the front and rear end frames of the hollow groove (101) are composed of pull-out plates (103), the inclined plate (102) is spliced ​​by a plurality of thin plates (104), and the end point of the pull-out plate (103) is located on the extension line of the splicing line of the thin plates (104).

3. The bridge template cutter according to claim 2, characterized in that: Side limiting plates (207) are provided on both sides of the positioning plate (203), and a bottom limiting plate (208) is provided at the bottom of the positioning plate (203). Both the side limiting plates (207) and the bottom limiting plate (208) are fixedly connected to the extrusion plate (202). A multi-stage telescopic rod (209) is provided at the bottom of the side limiting plate (207), and a connecting plate (210) is fixedly connected to the bottom of the multi-stage telescopic rod (209). The connecting plate (210) is fixedly connected to the outer side of the hollow groove (101).

4. A bridge template cutter according to claim 3, characterized in that: A lift (6) is provided at the bottom of the flame cutting table (1), the top of the lift (6) is located in the middle of the flame cutting table (1), and the two ends of the lift (6) are at a certain distance from the two ends of the flame cutting table (1).

5. The bridge template cutter according to claim 1, characterized in that: The cutting torch (5) comprises a shell (501), the outer side of the shell (501) is provided with a fixed sleeve (507), the fixed sleeve (507) is fixedly connected to the bottom output end of the hydraulic telescopic rod (402), an oxygen tube (502) and a gas tube (503) are inserted into the interior of the fixed sleeve (507), the rear ends of the oxygen tube (502) and the gas tube (503) are respectively connected to a hose (505), the outer sides of the oxygen tube (502) and the gas tube (503) are respectively provided with a regulating valve (506), and the front ends of the oxygen tube (502) and the gas tube (503) are connected to the same nozzle (504).

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