Steel structure processing toothless saw

Abstract

The utility model relates to steel structure processing technical field, concretely is a kind of steel structure processing toothless saw, including toothless saw machine body and toothless saw blade, be equipped with the angle adjusting assembly for adjusting the inclination of toothless saw blade and self-locking on toothless saw machine body, be equipped with the universal transmission component for controlling the rotation of toothless saw blade on the output shaft of toothless saw machine body, the shield for shielding chippings is rotationally equipped on the angle adjusting assembly;Through setting angle adjusting assembly and universal transmission component, reached the effect that the inclination angle of toothless saw blade can be adjusted according to demand, so that staff need not manually support positioning or repeatedly adjust workpiece angle, ensure the consistency and accuracy of cutting angle, after angle adjustment, both can realize the self-locking of toothless saw blade angle, avoid the angle deviation due to vibration or external force during cutting process, also can maintain the stability of power transmission, ensure that toothless saw blade can still rotate smoothly at high speed under the state of inclination.

Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a toothless saw for steel structure processing. Background Technology

[0002] A toothed saw is a tool that uses a high-speed rotating abrasive wheel or diamond saw blade to cut hard materials such as metal and stone.

[0003] For example, a fire-fighting toothed saw disclosed in Chinese Patent Publication No. CN217571112U uses rollers to move the housing and toothed saw blade to cut iron wire, pipes, etc., avoiding prolonged hand-held operation and reducing the labor intensity of operators. However, in the production of steel structure components for bridges and high-rise buildings, it is necessary to bevel the steel to meet welding accuracy requirements. Traditional bevel cutting requires manual tilting of the machine body, which is prone to angle deviation due to arm shaking, and thus the risk of saw blade jamming or breakage due to uneven force.

[0004] To address the aforementioned issues, for example, a protective structure for toothless saw cutting is disclosed in Chinese Patent Publication No. CN216541196U. This protective structure, through a rotating connection mechanism, allows the cutting guard to rotate when the toothless saw needs angle adjustment. After adjustment, tightening the locking knob presses the positioning plate against the support block to secure the adjusted cutting guard. However, based on toothless saws and existing technologies in related fields, traditional handheld toothless saws often use wrenches or slot-type angle adjustments, which are prone to loosening under cutting vibration or workpiece reaction force, causing the saw blade angle to gradually shift and affecting cutting accuracy. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a toothless saw for steel structure processing.

[0006] The purpose of this utility model is achieved through the following technical solution: a toothless saw for steel structure processing, including a toothless saw body and a toothless saw blade. The toothless saw body is provided with an angle adjustment component for adjusting the slope of the toothless saw blade and self-locking. The output shaft of the toothless saw body is provided with a universal transmission component for controlling the rotation of the toothless saw blade. The angle adjustment component is rotatably provided with a protective cover for blocking debris.

[0007] Preferably, the angle adjustment assembly includes a fixed base and a rotating base. The fixed base is fixedly mounted on the toothless saw body. A first spline shaft is fixedly provided on the side of the rotating base facing the fixed base. The first spline shaft is rotatably connected to the fixed base. A worm gear is slidably provided on the outer surface of the first spline shaft. A worm for controlling the rotation of the worm gear is rotatably provided on the top of the fixed base. An angle display assembly is provided on the bottom of the fixed base. A knob is fixedly provided on one end of the worm located outside the fixed base.

[0008] Preferably, the protective cover is disposed inside the rotating seat, and rotating grooves are provided on both the left and right sides of the protective cover. The rotating seat is fixedly provided with rotating sliders that are adapted to the two rotating grooves, and the rotating seat is provided with bolts for tightening the protective cover.

[0009] Preferably, the universal drive assembly includes a second splined shaft that slides with the output shaft of the toothed saw body. A universal joint is fixedly installed at one end of the second splined shaft away from the output shaft of the toothed saw body. A third splined shaft is fixedly installed at the end of the universal joint away from the second splined shaft. The third splined shaft is rotatably connected to the guard. The toothed saw blade is slidably disposed on the third splined shaft. Washers are slidably provided on both the left and right sides of the third splined shaft located on the toothed saw blade. A stud is fixedly installed at the end of the third splined shaft away from the universal joint. A nut is threaded onto the outer surface of the stud.

[0010] Preferably, the angle display component includes a scale plate fixedly disposed at the bottom of the fixed base, the outer surface of the scale plate is provided with scale lines, and a pointer is fixedly disposed at the bottom of the rotating base corresponding to the position of the scale lines.

[0011] Preferably, the fixed base has a first rotating hole corresponding to the position of the first spline shaft, and the first spline shaft is connected to the first rotating hole through a bearing.

[0012] Preferably, the protective cover has a second rotating hole at the position corresponding to the third spline shaft, and the third spline shaft is connected to the second rotating hole through a bearing.

[0013] Beneficial effects:

[0014] This steel structure toothless saw, through the setting of angle adjustment components and universal transmission components, achieves the effect of adjusting the tilt angle of the toothless saw blade according to needs. This eliminates the need for workers to manually support and position the workpiece or repeatedly adjust the workpiece angle, ensuring the consistency and accuracy of the cutting angle. After angle adjustment, it can achieve self-locking of the toothless saw blade angle, avoiding angle deviation caused by vibration or external force during the cutting process, and maintain the stability of power transmission, ensuring that the toothless saw blade can still rotate at high speed and smoothly in the tilted state, reducing vibration or jamming caused by angle changes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a first-view structural schematic diagram of the toothless saw body of this utility model.

[0018] Figure 3 This is a second-view structural schematic diagram of the toothless saw body of this utility model;

[0019] Figure 4 This is a schematic diagram showing the state of the toothless saw blade of this utility model when making oblique cuts;

[0020] Figure 5 This is a structural schematic diagram of the angle adjustment component of this utility model from a first perspective;

[0021] Figure 6 This is a structural schematic diagram of the second perspective of the angle adjustment component of this utility model;

[0022] Figure 7 This is a structural schematic diagram of the angle adjustment component of this utility model from a third perspective;

[0023] Figure 8 This is a schematic diagram showing the disassembled structure of the output shaft and the second spline shaft of the toothless saw body of this utility model;

[0024] Figure 9 This is a schematic diagram showing the disassembled structure of the angle adjustment component and the protective cover of this utility model;

[0025] Figure 10 This is a cross-sectional view of the protective cover and toothless saw blade of this utility model;

[0026] Figure 11 This utility model Figure 10 A magnified schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Toothless saw body; 2. Toothless saw blade; 3. Angle adjustment assembly; 301. Fixed base; 302. Rotary base; 3021. Rotary slider; 3022. Bolt; 303. First splined shaft; 304. Worm gear; 305. Worm; 306. Knob; 4. Universal drive assembly; 401. Second splined shaft; 402. Universal joint; 403. Third splined shaft; 404. Washer; 405. Stud; 406. Nut; 5. Protective cover; 501. Rotary slide; 6. Angle display assembly; 601. Dial; 602. Pointer. Detailed Implementation

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0030] like Figures 1 to 11 As shown, a toothless saw for steel structure processing includes a toothless saw body 1 and a toothless saw blade 2. The toothless saw body 1 is provided with an angle adjustment component 3 for adjusting the slope of the toothless saw blade 2 and self-locking. The output shaft of the toothless saw body 1 is provided with a universal transmission component 4 for controlling the rotation of the toothless saw blade 2. The angle adjustment component 3 is rotatably provided with a protective cover 5 for blocking debris.

[0031] like Figure 1 , Figure 4 and Figure 6As shown, the angle adjustment assembly 3 includes a fixed base 301 and a rotating base 302. The fixed base 301 is fixedly mounted on the toothless saw body 1. A first spline shaft 303 is fixedly mounted on the side of the rotating base 302 facing the fixed base 301. A first rotating hole is provided on the fixed base 301 corresponding to the position of the first spline shaft 303. The first spline shaft 303 is connected to the first rotating hole through a bearing. By using the bearing, the friction force when the first spline shaft 303 rotates can be reduced, and the stability of the first spline shaft 303 during rotation can be improved. The first spline shaft 303 is rotatably connected to the fixed base 301. A worm gear 304 is slidably provided on the outer surface of the first spline shaft 303. A worm 305 for controlling the rotation of the worm gear 304 is rotatably provided on the top of the fixed base 301. Figure 6 and Figure 7 As shown, the bottom of the fixing base 301 is provided with an angle display component 6, and a knob 306 is fixedly installed at one end of the worm gear 305 located outside the fixing base 301; as Figure 9 As shown, the protective cover 5 is located inside the rotating seat 302. Rotary grooves 501 are provided on both the left and right sides of the protective cover 5. Rotary sliders 3021, corresponding to the positions of the two rotary grooves 501, are fixedly provided on the rotating seat 302. Bolts 3022 for tightening the protective cover 5 are provided on the rotating seat 302. The worm gear 305 is rotated by the knob 306, and the meshing between the worm gear 305 and the worm wheel 304 causes the worm wheel 304 to drive the rotating seat 302 to rotate via the first spline shaft 303. When the rotating seat 302 rotates, the cooperation between the rotary sliders 3021 and the rotary grooves 501 causes the protective cover 5 to drive the toothless saw blade 2 to rotate. This allows the tilt angle of the toothless saw blade 2 to be adjusted as needed, eliminating the need for manual support or repeated adjustments to the workpiece angle. The oblique cutting operation can be completed simply by moving the horizontally mobile equipment, ensuring the consistency and accuracy of the cutting angle and avoiding the risk of saw blade jamming or breakage due to uneven force.

[0032] like Figure 1 , Figure 4 , Figure 6 , Figure 9 , Figure 10 and Figure 11As shown, the universal drive assembly 4 includes a second splined shaft 401 that slides with the output shaft of the toothed saw body 1. A universal joint 402 is fixedly installed at one end of the second splined shaft 401 away from the output shaft of the toothed saw body 1. A third splined shaft 403 is fixedly installed at the other end of the universal joint 402 away from the second splined shaft 401. The third splined shaft 403 is rotatably connected to the guard 5. The toothed saw blade 2 is slidably mounted on the third splined shaft 403. Washers 404 are slidably provided on both the left and right sides of the third splined shaft 403 located on the toothed saw blade 2. A stud 405 is fixedly installed at the other end of the third splined shaft 403 away from the universal joint 402. A nut 406 is threaded onto the outer surface of the stud 405. A second rotating hole is opened in the guard 5 corresponding to the position of the third splined shaft 403. The third splined shaft 403 is connected to the second splined shaft 403 via a bearing. The rotating hole connection, utilizing the aforementioned bearing, reduces friction during the rotation of the third spline shaft 403, improving its stability. Simultaneously, the shims 404, studs 405, and nuts 406 facilitate replacement of the toothless saw blade 2 and allow it to rotate with the protective cover 5, effectively controlling the toothless saw blade 2 to enter the oblique cutting mode. The universal drive assembly 4 maintains stable power transmission after the angle of the toothless saw blade 2 is adjusted, ensuring high-speed and stable rotation even when tilted, reducing vibration or jamming caused by angle changes. This stable cutting process not only improves cut smoothness but also reduces safety risks caused by the toothless saw blade 2's sway, extending the service life of both the toothless saw blade 2 and the toothless saw body 1.

[0033] like Figure 1 , Figure 4 , Figure 6 and Figure 7 As shown, the angle display component 6 includes a scale 601 fixedly installed at the bottom of the fixed base 301. The outer surface of the scale 601 is provided with scale lines, and the bottom of the rotating base 302 is fixedly provided with a pointer 602 at the position corresponding to the scale lines. By using the scale 601 and pointer 602, the operator can observe the tilt angle of the toothless saw blade 2 in real time, thereby improving the angle adjustment accuracy of the toothless saw blade 2.

[0034] The work process is as follows:

[0035] S1: When a slant cut is required, the worm 305 is rotated by the knob 306, and then the meshing between the worm 305 and the worm wheel 304 is used to make the worm wheel 304 drive the rotating seat 302 to rotate through the first spline shaft 303.

[0036] S2: When the rotating seat 302 rotates, the cooperation between the rotating slider 3021 and the rotating groove 501 causes the guard 5 to drive the toothless saw blade 2 to rotate, thereby adjusting the tilt angle of the toothless saw blade 2 as needed (using the set scale 601 and pointer 602, the operator can observe the tilt angle of the toothless saw blade 2 in real time, improving the angle adjustment accuracy of the toothless saw blade 2). This allows the operator to complete the oblique cutting operation simply by moving the horizontal equipment without manually supporting the positioning or repeatedly adjusting the workpiece angle, ensuring the consistency and accuracy of the cutting angle and avoiding the risk of saw blade jamming or breakage caused by uneven force.

[0037] S3: After the angle of the toothless saw blade 2 is adjusted, the universal drive assembly 4 can maintain the stability of power transmission, ensuring that the toothless saw blade 2 can still rotate at high speed and smoothly in the tilted state, reducing vibration or jamming caused by angle changes. At the same time, the stable cutting process can not only improve the flatness of the cut, but also reduce the safety risks caused by the sway of the toothless saw blade 2, and extend the service life of the toothless saw blade 2 and the toothless saw body 1.

[0038] S4: After adjusting the tilt angle of the toothless saw blade 2 by means of the worm gear 304 and worm 305, the angle can be fixed by means of its small meshing gap and strong self-locking characteristics, so as to avoid the angle deviation caused by vibration or external force during the cutting process, and the adjustment process is smooth and without jamming.

[0039] S5: By loosening the bolt 3022, and then using the cooperation between the rotating slider 3021 and the rotating groove 501, the position of the guard 5 can be adjusted, so that the toothless saw blade 2 can perform cutting operations in multiple directions.

[0040] The toothed saw body 1 and universal joint 402 described in this application are both known technologies, therefore their specific structures and working principles are not described in detail.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A toothless saw for processing steel structures, characterized in that: The saw includes a toothless saw body (1) and a toothless saw blade (2). The toothless saw body (1) is provided with an angle adjustment component (3) for adjusting the slope of the toothless saw blade (2) and locking itself. The output shaft of the toothless saw body (1) is provided with a universal transmission component (4) for controlling the rotation of the toothless saw blade (2). The angle adjustment component (3) is rotatably provided with a protective cover (5) for blocking debris.

2. The toothless saw for steel structure processing according to claim 1, characterized in that: The angle adjustment assembly (3) includes a fixed base (301) and a rotating base (302). The fixed base (301) is fixedly installed on the toothless saw body (1). A first spline shaft (303) is fixedly provided on the side of the rotating base (302) facing the fixed base (301). The first spline shaft (303) is rotatably connected to the fixed base (301). A worm gear (304) is slidably provided on the outer surface of the first spline shaft (303). A worm (305) for controlling the rotation of the worm gear (304) is rotatably provided on the top of the fixed base (301). An angle display assembly (6) is provided at the bottom of the fixed base (301). A knob (306) is fixedly provided at one end of the worm (305) located outside the fixed base (301).

3. The toothless saw for steel structure processing according to claim 2, characterized in that: The protective cover (5) is disposed inside the rotating seat (302). Rotary slide grooves (501) are provided on both the left and right sides of the protective cover (5). Rotary slide blocks (3021) are fixedly provided on the rotating seat (302) at the positions corresponding to the two rotary slide grooves (501). Bolts (3022) for tightening the protective cover (5) are provided on the rotating seat (302).

4. A toothless saw for steel structure processing according to claim 3, characterized in that: The universal drive assembly (4) includes a second spline shaft (401) that slides with the output shaft of the toothless saw body (1). A universal joint (402) is fixedly installed at one end of the second spline shaft (401) away from the output shaft of the toothless saw body (1). A third spline shaft (403) is fixedly provided at one end of the universal joint (402) away from the second spline shaft (401). The third spline shaft (403) is rotatably connected to the guard (5). The toothless saw blade (2) is slidably disposed on the third spline shaft (403). Washers (404) are slidably provided on both the left and right sides of the third spline shaft (403) located on the toothless saw blade (2). A stud (405) is fixedly provided at one end of the third spline shaft (403) away from the universal joint (402). A nut (406) is threadedly connected to the outer surface of the stud (405).

5. A toothless saw for steel structure processing according to claim 2, characterized in that: The angle display component (6) includes a dial (601) fixedly disposed at the bottom of the fixed base (301). The outer surface of the dial (601) is provided with scale lines, and the bottom of the rotating base (302) is fixedly provided with a pointer (602) corresponding to the position of the scale lines.

6. A toothless saw for steel structure processing according to claim 2, characterized in that: The fixed base (301) has a first rotating hole at the position corresponding to the first spline shaft (303), and the first spline shaft (303) is connected to the first rotating hole through a bearing.

7. A toothless saw for steel structure processing according to claim 4, characterized in that: The protective cover (5) has a second rotating hole at the position corresponding to the third spline shaft (403), and the third spline shaft (403) is connected to the second rotating hole through a bearing.

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