A universal fixing and protective device for steel cutting

Abstract

This invention belongs to the field of building construction and mainly relates to a universal fixing and protective device for steel cutting. It includes a base plate, a support, a pressing component, a protective component, and a fixing component. The support is installed above the base plate, and the pressing component passes through the support from above to lock the steel to be cut. The fixing component is installed on the base plate and includes a first fixing unit and a second fixing unit. The first fixing unit and the second fixing unit are respectively positioned at a certain distance on both sides of the support, fixing and limiting the steel in length and width directions during the cutting process. The cutting mechanism is installed on one side of the pressing component, and the protective component covers the outside of the cutting mechanism from the side, moving with the cutting mechanism to prevent sparks from flying out. This application achieves simultaneous clamping and positioning of multiple types of steel, precise length cutting, and continuous spark shielding protection throughout the cutting process.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a universal fixing and protective device for steel cutting. Background Technology

[0002] In steel structure and metallurgical engineering construction sites, there are numerous H-beam cutting operations. Traditional steel cutting fixtures often use electric telescopic rods to press down on the pressure plate to fix the steel. This results in uneven force distribution at a single point, making the H-beams prone to lateral tilting, leading to skewed cuts and large dimensional errors. During the cutting process, the high-speed grinding of the abrasive wheel generates a large number of high-temperature sparks without any follow-up shielding structure. These sparks scatter and obstruct the operator's vision, easily causing burns, eye burns, and other safety accidents. At the same time, conventional limiting fixtures are only suitable for single-size H-beams. When processing multiple types of steel, frequent fixture changes are required, and there is a lack of precise length-limiting structures. Workers repeatedly measure and adjust, resulting in low construction efficiency and high labor costs.

[0003] Existing steel cutting machines rely solely on top pressure plates for clamping and fixing, lacking lateral centering clamping structures and synchronous follow-up spark interception and protection structures. This makes it difficult to simultaneously ensure stable clamping of H-beams of various specifications, high-precision cutting, and operational safety. Summary of the Invention

[0004] To address the aforementioned issues, this application proposes a universal fixing and protective device for steel cutting, which clamps the steel from the side and incorporates a protective structure to achieve simultaneous clamping and positioning of multiple steel types, precise length cutting, and continuous shielding and protection against cutting sparks throughout the cutting process.

[0005] This invention proposes a universal fixing and protective device for steel cutting, comprising: a base plate, a bracket, a pressing component, a protective component, a fixing component, and a cutting mechanism. The support is installed above the base, and the pressing component passes through the support from above to lock the steel to be cut. The fixing component is installed on the base plate and includes a first fixing unit and a second fixing unit. The first fixing unit and the second fixing unit are respectively set at a certain distance on both sides of the support to fix and limit the steel in the width and length directions during the cutting process. The steel extends into the support from the direction of the first fixing unit and abuts against the second fixing unit. The cutting mechanism is installed on one side of the pressing component, and the protective component covers the outside of the cutting mechanism from the side and moves with the cutting mechanism to prevent sparks from splashing out.

[0006] Furthermore, the first fixing unit includes a clamping plate, a positioning block, a transmission block, and a screw. A through groove is provided on the side of the base plate near the cutting mechanism, and the screw is installed inside the through groove. Two positioning blocks are fixed near the inner walls of both sides of the through groove, and the two ends of the screw can rotatably pass through the two positioning blocks. Two transmission blocks are threaded onto the screw and mesh with the surface of the screw, allowing the screw to rotate and move along the length direction of the screw. The clamping plate is connected to the top of each of the two transmission blocks.

[0007] Furthermore, the second fixing unit includes a fixing plate, a second spring, a rack, a locking block, and a stop plate. The fixing plate is installed on the side of the base plate away from the cutting mechanism. The fixing plate has a through opening inside. The rack is arranged parallel to the direction of the steel's insertion and passes through the through opening. The second spring is suspended inside the through opening. The bottom of the second spring is connected to the locking block, which meshes with the rack. The insertion end of the rack is vertically connected to the abutment plate, which is used to abut against the insertion end of the steel.

[0008] Furthermore, the pressing assembly includes a threaded rod, a connecting seat, and a horizontal mounting plate. The top of the bracket has a threaded hole, and the threaded rod passes through the threaded hole from above into the interior of the bracket. The bottom of the threaded rod is connected to the connecting seat, and the bottom of the connecting seat is provided with the horizontal mounting plate. The cutting mechanism is vertically disposed on one side of the horizontal mounting plate.

[0009] Furthermore, the protective assembly includes a connecting block, a spring, and an intercepting plate. The intercepting plate is disposed parallel to the cutting mechanism on the outside of the bracket, and an opening is provided at the bottom of the intercepting plate to facilitate the insertion of the steel material. The interceptor plate has grooves on both sides, and the first spring is embedded in the grooves. The horizontal mounting plate has two connecting blocks on its side, and the connecting blocks are connected to the top of the first spring. The connecting blocks can slide inside the grooves, causing the interceptor plate to move down synchronously with the cutting mechanism.

[0010] Furthermore, the threads on the surfaces at both ends of the screw are in opposite directions, causing the two transmission blocks to drive the two clamping plates to move towards each other.

[0011] Furthermore, the through groove is parallel to the cutting direction of the steel and perpendicular to the insertion direction of the steel.

[0012] Furthermore, the extended end of the screw is provided with a handle, which controls the screw's limited rotation.

[0013] Furthermore, a scale plate is provided on the surface of the base plate, and the scale plate is parallel to the rack.

[0014] Furthermore, the opening is arc-shaped.

[0015] The beneficial effects of this application are as follows: By using bidirectional centering clamping and fixing, the cutting accuracy is greatly improved: the steel is limited from both sides, replacing the traditional single-point pressing and fixing from the top, avoiding lateral displacement and tilting of the steel, resulting in a flat and unskewed cut. It is suitable for steel of various widths and specifications, has strong versatility, and does not require changing the clamps. The protective components feature a follow-up spark interception and protection system, which significantly improves operational safety. The components move downwards synchronously during cutting, blocking high-temperature sparks from splashing throughout the entire process, preventing sparks from injuring people or obstructing vision. The structure is integrated, making on-site transportation and operation convenient. It is easy to move and place on the construction site, and a single person can complete all clamping and cutting operations, reducing labor input. The parts are easy to disassemble and maintain, and have a long service life: the clamping plates, intercepting plates, and spring parts can all be disassembled and replaced individually. The screw and slide transmission structure is easy to lubricate and maintain, and it is suitable for long-term high-frequency material feeding operations in steel structure processing plants and civil construction sites. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view schematic diagram of a general-purpose fixing and protective device for steel cutting; Figure 2 This is a cross-sectional view of the pressure-down assembly. Figure 3 This is a schematic diagram of the connection structure between the pressure-down assembly and the protective plate. Figure 4 This is a schematic diagram of the structure of the first fixed unit; Figure 5 This is a structural schematic diagram of the second fixed unit; 1. Base plate; 11. Scale plate; 2. Bracket; 21. Threaded hole; 3. Pressing assembly; 31. Threaded rod; 32. Connecting seat; 33. Horizontal mounting plate; 4. Protective assembly; 41. Connecting block; 42. Spring one; 43. Interceptor plate; 430. Slide groove; 431. Opening; 5. Fixing assembly; 51. First fixing unit; 511. Clamping plate; 512. Positioning block; 513. Transmission block; 514. Screw; 515. Through groove; 516. Handle; 52. Second fixing unit; 521. Fixing plate; 522. Spring two; 523. Rack; 524. Locking block; 525. Abutment plate; 6. Cutting mechanism. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other implementations obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. In the various drawings, the same elements are represented by the same or similar reference numerals, and for clarity, the various parts in the drawings are not drawn to scale.

[0019] See Figure 1-3 As shown, this invention proposes a universal fixing and protective device for steel cutting, comprising: a base plate 1, a bracket 2, a pressing component 3, a protective component 4, and a fixing component 5; a cutting mechanism 6. The bracket 2 is installed above the base plate 1, and the pressing component 3 passes through the bracket 2 from above to lock the steel to be cut. The fixing component 5 is installed on the base plate 1 and includes a first fixing unit 51 and a second fixing unit 52. The dimensions of the first fixing unit 51 and the second fixing unit 52 are adjustable and respectively set at a certain distance on both sides of the bracket 2, fixing and limiting the steel in the width and length directions during the cutting process. The steel extends into the bracket 2 from the direction of the first fixing unit 51 and abuts against the second fixing unit 52. The cutting mechanism 6 is installed on one side of the pressing component 3, and the protective component 4 covers the outside of the cutting mechanism 6 from the side and moves with the cutting mechanism 6 to prevent sparks from splashing out. In this embodiment, both the first fixing unit 51 and the second fixing unit 52 are adjustable structures, capable of adapting to steel of different specifications and sizes, eliminating the need for customized fixing clamps for different steel types and improving the versatility of the device. The steel extends from the outside of the first fixing unit 51, which clamps the steel in the width direction; the end of the steel passes through the interior of the bracket; the end of the steel abuts against the second fixing unit 52; the length of the second fixing unit 52 is adjusted and locked according to the required cutting size, so that the steel is stably placed on the base plate 1; the cutting mechanism 6 is connected to an external power source, the pressing component 3 moves downward, and drives the cutting mechanism 6 to cut the steel; the protective component 4 is fixed to the pressing component and covers the outside of the cutting mechanism 6 to prevent sparks from splashing out during the steel cutting process, obstructing vision, and injuring workers.

[0020] See Figure 2 , 3As shown, specifically, the pressing assembly 3 includes a threaded rod 31, a connecting seat 32, and a horizontal mounting plate 33. A threaded hole 21 is provided at the top of the bracket 2, through which the threaded rod 31 passes into the bracket 2 from above. The connecting seat 32 is connected to the bottom of the threaded rod 31, and the horizontal mounting plate 33 is provided at the bottom of the connecting seat 32. The threaded rod 31 and the horizontal mounting plate 33 are rotatably connected via the connecting seat 32, and the horizontal mounting plate 33 does not rotate with the rotation of the threaded rod 31.

[0021] In this embodiment, the connecting seat 32 is provided with a connecting pipe, a support plate, and a limiting plate. The support plate is located at the bottom of the connecting pipe, and the limiting plate is located at the top of the connecting pipe. The threaded rod 31 passes through the through hole, and the support plate rests on the bottom of the connecting seat. The limiting plate and the support plate limit the horizontal mounting plate 33. The threaded rod 31 can rotate within the connecting seat 32 but will not detach from the connecting seat 32 and cause the horizontal mounting plate 33 to rotate together. When the threaded rod 31 is rotated, it moves axially along the threaded hole, thereby causing the horizontal mounting plate 33 to move up and down, horizontally pressing it against the upper surface of the steel to fix the height of the steel.

[0022] See Figure 2 , 3As shown, the cutting mechanism 6 is vertically disposed on one side of the horizontal mounting plate 33. Preferably, the two sides of the horizontal mounting plate 33 extend a certain distance from the bracket. By rotating the threaded rod 31, the horizontal mounting plate 33 drives the cutting mechanism 6 to move up and down together. Specifically, the protective component 4 includes a connecting block 41, a spring 42, and an intercepting plate 43. The intercepting plate 43 is disposed parallel to the cutting mechanism 6 on the outside of the bracket 2. An opening 431 is provided at the bottom of the intercepting plate 43 to facilitate the insertion of the steel material. Preferably, the opening 431 is arc-shaped. Slide grooves 430 are provided on both sides of the intercepting plate 43. The spring 42 is embedded in the slide groove 430. Two connecting blocks 41 are provided on the side of the horizontal mounting plate 33. The connecting block 41 is connected to the top of the spring 42. The spring 42 plays a buffering and stabilizing role for the movement of the intercepting plate 34. The connecting block 41 can slide inside the slide groove 430, driving the intercepting plate 43 to move down synchronously with the cutting mechanism 6. In this embodiment, the connecting block 31 has an L-shaped structure, and the surface of the connecting block 41 is tightly fitted with the inner wall of the slide groove 32. The side of the intercepting plate 43 is provided with a baffle covering the outside of the cutting mechanism 6, and the side of the intercepting plate 43 is fitted with the surface of the bracket 2. With the sliding connection between the connecting block 41 and the slide groove 430, the intercepting plate 41 can move down synchronously with the cutting mechanism 6, and the intercepting plate 41 can intercept the flying sparks, making the device safer to use.

[0023] See Figure 4 As shown, specifically, the first fixing unit 51 includes a clamping plate 511, a positioning block 512, a transmission block 513, and a screw 514. A through groove 515 is formed on the side of the base plate 1 near the cutting mechanism 6, and the screw 513 is installed inside the through groove 515. In this embodiment, specifically, the through groove 515 is parallel to the steel cutting direction and perpendicular to the steel insertion direction. There are two positioning blocks 512, two transmission blocks 513, and two clamping plates 511.

[0024] Two positioning blocks 512 are disposed near the inner walls of the through groove 515 on both sides and fixed to the through groove 515. Rotating holes are provided opposite to each other on the positioning blocks 512, allowing the two ends of the screw 514 to rotatably pass through the two positioning blocks 512. Two transmission blocks 513 are threaded onto the screw 514, engaging with the surface of the screw 514, allowing the screw 514 to rotate and move along its length. The tops of both transmission blocks 513 are connected to clamping plates 511. Specifically, the thread directions on the surfaces of the two ends of the screw 514 are opposite, causing the two transmission blocks 513 to drive the two clamping plates 511 to move towards each other. Preferably, a handle 516 is provided at the protruding end of the screw 514, allowing the screw 514 to be controlled and its rotation limited by the handle 516.

[0025] In this embodiment, two positioning blocks 512 are symmetrically fixed to the inner walls of both sides of the through groove 515. The screw 514 is rotatably installed between the two positioning blocks 512. Two external threads in opposite directions are symmetrically arranged on the shaft of the screw 514. Two transmission blocks 513 are threadedly connected to the screw 514 through internal threads in corresponding directions. The tops of the two transmission blocks 513 protrude from the through groove 515 and are fixedly connected to the two clamping plates 511 respectively. When the screw 515 is rotated by rotating the handle 516, the two transmission blocks 513 and the screw 514 rotate relative to each other, driving the two clamping plates 511 to move towards or away from each other along the through groove, thereby clamping or releasing steel of different widths, making the steel width firmly fixed in the positive direction, thus improving the cutting accuracy of the device.

[0026] See Figure 5 As shown, specifically, the second fixing unit 52 includes a fixing plate 521, a second spring 522, a rack 523, a locking block 524, and a stop plate 525. The fixing plate 521 is installed on the side of the base plate 1 away from the cutting mechanism 6. A through-hole is provided inside the fixing plate 521. The rack 523 is arranged parallel to the direction of the steel insertion and passes through the through-hole. The second spring 522 is suspended inside the through-hole. The bottom of the second spring 522 is connected to the locking block 524, which meshes with the rack 523. The inserted end of the rack 523 is vertically connected to the stop plate 525, which is used to abut against the inserted end of the steel. Specifically, the teeth of the rack 523 are at a certain angle to the horizontal plane to prevent the rack 523 from moving in the opposite direction. Preferably, a scale plate 11 is provided on the surface of the base plate 1, and the scale plate 11 is parallel to the rack 523. The 0 mark on the scale plate 11 starts from the cutting mechanism 6 and increases in increments toward the side away from the support 2 and the cutting mechanism 6, ending at the end face of the base plate 1.

[0027] In this embodiment, during use, the steel is fed in from one side of the cutting mechanism 6. First, the steel is clamped in the width direction by the two clamping plates 51 of the first fixing unit 51. The rack 523 is pushed to move along the through-hole. The rack 523 drives the abutment plate 525 to abut against the end of the steel extending into the hole. At this time, the locking block 514 is always engaged with the rack 523 under the elastic force of the second spring 522, restricting the rack from moving in the opposite direction and fixing the steel in the length direction. With the help of the scale plate 11, the cutting length of the steel can be visually confirmed, further improving the cutting accuracy.

[0028] The procedure for this application is as follows: Place the steel to be cut flat on the base plate 1. Push the end of the steel along the scale plate 11 of the base plate 1 to fit against the abutment plate 525. Press the second spring 522 to lift the locking block 524. Slide the rack to adjust the abutment plate to the target cutting length. Release the second spring 522 to make the locking block 524 lock the rack 523 to complete the length locking. Rotating the handle 516 drives the screw 514 with bidirectional threads to rotate. The through groove 515 restricts the transmission block 513 to move only horizontally. The reverse threads at both ends drive the two sets of transmission blocks 513 and the clamping plates 511 to move synchronously towards each other, clamping the steel from both sides to complete the centering and fixing. Rotate the threaded rod 31 above the bracket 2. The threaded rod 31 drives the connecting seat 32, the horizontal mounting plate 33, and the cutting mechanism 6 to feed downward as a whole. The grinding wheel of the cutting mechanism 6 contacts the steel to complete the cutting. During the cutting process, the connecting block 41 on the side of the horizontal mounting plate 33 slides down along the slide groove 430 of the intercepting plate 43, causing the intercepting plate 43 to move down synchronously with the cutting mechanism 6. The intercepting plate 43 blocks the cutting sparks throughout the process, and the spring 42 in the slide groove 430 buffers the sliding impact of the intercepting plate 43. After cutting, rotate the threaded rod 31 in the opposite direction to raise the cutting mechanism 6, reverse the handle 516 to release the clamps 511 on both sides, and pull out the processed steel. Repeat the above process to complete batch cutting.

[0029] The beneficial effects of this application are as follows: By using bidirectional centering clamping and fixing, the cutting accuracy is greatly improved: the steel is limited from both sides, replacing the traditional single-point pressing and fixing from the top, avoiding lateral displacement and tilting of the steel, resulting in a flat and unskewed cut. It is suitable for steel of various widths and specifications, has strong versatility, and does not require changing the clamps. The protective components feature a follow-up spark interception and protection system, which significantly improves operational safety. The components move downwards synchronously during cutting, blocking high-temperature sparks from splashing throughout the entire process, preventing sparks from injuring people or obstructing vision. The structure is integrated, making on-site transportation and operation convenient. It is easy to move and place on the construction site, and a single person can complete all clamping and cutting operations, reducing labor input. The parts are easy to disassemble and maintain, and have a long service life: the clamping plates, intercepting plates, and spring parts can all be disassembled and replaced individually. The screw and slide transmission structure is easy to lubricate and maintain, and it is suitable for long-term high-frequency material feeding operations in steel structure processing plants and civil construction sites.

[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be noted that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any actual relationship or order between these entities or operations. Finally, it should be noted that the above embodiments are clearly illustrative of the invention and not intended to limit the implementation. Those skilled in the art will recognize that various variations and modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations. However, obvious variations and modifications derived therefrom remain within the scope of this invention.

Claims

1. A universal fixing and protective device for steel cutting, characterized in that, include: Base plate, bracket, pressing assembly, protective assembly, fixing assembly, and cutting mechanism. The support is installed above the base, and the pressing component passes through the support from above to lock the steel to be cut. The fixing component is installed on the base plate and includes a first fixing unit and a second fixing unit. The first fixing unit and the second fixing unit are respectively set at a certain distance on both sides of the support to fix and limit the steel in the width and length directions during the cutting process. The steel extends into the support from the direction of the first fixing unit and abuts against the second fixing unit. The cutting mechanism is installed on one side of the pressing component, and the protective component covers the outside of the cutting mechanism from the side and moves with the cutting mechanism to prevent sparks from splashing out.

2. The universal fixing and protective device for steel cutting according to claim 1, characterized in that, The first fixing unit includes a clamping plate, positioning blocks, transmission blocks, and a screw. A through groove is opened on the side of the base plate near the cutting mechanism, and the screw is installed inside the through groove. Two positioning blocks are fixed near the inner walls of the two sides of the through groove, and the two ends of the screw can rotatably pass through the two positioning blocks. Two transmission blocks are threaded onto the screw and mesh with the surface of the screw, allowing the screw to rotate and move along the length direction of the screw. The clamping plate is connected to the top of each of the two transmission blocks.

3. The universal fixing and protective device for steel cutting according to claim 1, characterized in that, The second fixing unit includes a fixing plate, a second spring, a rack, a locking block, and a stop plate. The fixing plate is installed on the side of the base plate away from the cutting mechanism. The fixing plate has a through opening inside. The rack is arranged parallel to the direction of the steel's insertion and passes through the through opening. The second spring is suspended inside the through opening. The bottom of the second spring is connected to the locking block, which meshes with the rack. The insertion end of the rack is vertically connected to the abutment plate, which is used to abut against the insertion end of the steel.

4. The universal fixing and protective device for steel cutting according to claim 1, characterized in that, The pressing assembly includes a threaded rod, a connecting seat, and a horizontal mounting plate. The top of the bracket has a threaded hole, and the threaded rod passes through the threaded hole from above into the interior of the bracket. The bottom of the threaded rod is connected to the connecting seat, and the bottom of the connecting seat is provided with the horizontal mounting plate. The cutting mechanism is vertically arranged on one side of the horizontal mounting plate.

5. The universal fixing and protective device for steel cutting according to claim 4, characterized in that, The protective assembly includes a connecting block, a spring, and an intercepting plate. The intercepting plate is arranged parallel to the cutting mechanism on the outside of the bracket. An opening is provided at the bottom of the intercepting plate to facilitate the insertion of the steel. The interceptor plate has grooves on both sides, and the first spring is embedded in the grooves. The horizontal mounting plate has two connecting blocks on its side, and the connecting blocks are connected to the top of the first spring. The connecting blocks can slide inside the grooves, causing the interceptor plate to move down synchronously with the cutting mechanism.

6. The universal fixing and protective device for steel cutting according to claim 2, characterized in that, The threads on the two ends of the screw are in opposite directions, causing the two transmission blocks to drive the two clamping plates to move towards each other.

7. The universal fixing and protective device for steel cutting according to claim 2, characterized in that, The through groove is parallel to the cutting direction of the steel and perpendicular to the insertion direction of the steel.

8. The universal fixing and protective device for steel cutting according to claim 2, characterized in that, The extended end of the screw is provided with a handle, which controls the screw's limited rotation.

9. The universal fixing and protective device for steel cutting according to claim 3, characterized in that, The base plate has a scale plate on its surface, and the scale plate is parallel to the rack.

10. The universal fixing and protective device for steel cutting according to claim 5, characterized in that, The opening is arc-shaped.

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