Steel grating cross rod cutting equipment

Abstract

The utility model discloses a steel grating cross rod cutting device which comprises a cutting saw machine head and a machine base, one side of the outer surface of the cutting saw machine head is connected with an internal thread ring through a thread structure, and a roller bearing ring is installed in the middle of the interior of the internal thread ring through a roller bearing. A roller bearing ring is arranged in the cutting saw head, a first pushing block is fixedly arranged on each of the two sides of the interior of the roller bearing ring, a strip-shaped groove located in the cutting saw head is formed in the outer side of each first pushing block, a metal rod fixing groove is formed in one side of the inner wall of each strip-shaped groove, a metal rod is fixedly arranged in each metal rod fixing groove, and the outer surface of each metal rod is sleeved with a spring. According to the cutting saw head, the saw blade rotating shaft used for driving the saw blade to rotate can be fixed, the situation that the saw blade rotates when a person accidentally touches a starting switch of the cutting saw head can be prevented by fixing the saw blade rotating shaft, and therefore the safety of the cutting saw head is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel grating technology, specifically to a steel grating crossbar cutting device. Background Technology

[0002] The crossbars of the steel grating are an important component of the steel grating. They are orthogonally combined with the load-bearing flat steel (i.e., the longitudinal bars of the grating) at a certain interval and fixed by welding or press-locking to form a plate-type steel component with open through holes. The crossbars are generally made of twisted square steel, but round steel or flat steel can also be used. The material is usually carbon steel or stainless steel.

[0003] There are various options for cutting steel grating crossbars, including circular saws, new automatic flame cutting machines for steel gratings, and cutting saw heads. Circular saws are characterized by good cutting results, long saw blade life, and easy maintenance. New automatic flame cutting machines for steel gratings have made breakthroughs in traditional technology, significantly reducing the labor intensity of workers, improving work efficiency, and ensuring good cutting results. Cutting saw heads are characterized by ease of use, low cost, and wide adaptability.

[0004] However, if someone is preparing around the equipment's placement platform, and the cutting saw on the steel grating crossbar cutting equipment comes into contact with a metal foreign object, and someone accidentally touches the equipment's start button, the resulting sparks may injure the workers preparing around the placement platform, posing a certain danger. Therefore, it does not meet the existing needs, and we have proposed a steel grating crossbar cutting equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a steel grating crossbar cutting device to solve the problem mentioned in the background art that if someone is preparing to work around the device's placement platform, and the cutting saw on the steel grating crossbar cutting device comes into contact with a metal foreign object, and someone accidentally touches the device's start button, the resulting sparks may injure the workers who are preparing to work around the placement platform, which is a certain degree of danger.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel grating crossbar cutting device, comprising a cutting saw head and a base. A worktable is slidably connected to the upper surface of the base. An L-shaped support arm is fixedly installed on one side of the upper surface of the base. A guide groove is provided on the upper surface of the L-shaped support arm. A lead screw and two second guide rods are transversely passed through the guide groove. A movable block is slidably connected to the guide groove. The movable block is penetrated by the second guide rods and threadedly connected to the lead screw. A stepper motor is fixedly installed on one side of the upper surface of the L-shaped support arm. The output shaft of the stepper motor is connected to the lead screw via a coupling. A hydraulic cylinder is installed on the upper surface of the movable block. The output end of the hydraulic cylinder is connected to a head connecting arm. Four first guide rods are provided on the upper surface of the head connecting arm. The first guide rods penetrate the movable block. A cutting saw head is installed at the bottom of the arm. One side of the outer surface of the cutting saw head is connected to an internal threaded ring via a threaded structure. A roller bearing ring is installed in the middle of the inner threaded ring via a roller bearing. A first push block is fixed on both sides inside the roller bearing ring. A strip groove is provided on the outer side of the first push block, located inside the cutting saw head. A metal rod fixing groove is provided on one side of the inner wall of the strip groove. A metal rod is fixed inside the metal rod fixing groove. A spring is sleeved on the outer surface of the metal rod. One end of the spring is connected to a metal sleeve sleeved on the outer surface of the metal rod. A second push block is fixed on the side of the metal sleeve facing the first push block. The side of the first push block facing the second push block is an inclined surface, and a saw blade shaft is provided between the two second push blocks.

[0007] Preferably, the surface of the second push block facing the saw blade axis is arc-shaped, and the arc-shaped surface on the outer surface of the second push block is provided with multiple anti-slip stripes.

[0008] Preferably, a rubber sleeve is provided on one side of the outer surface of the saw blade shaft, and a rubber fixing head inserted into the saw blade shaft is fixedly provided on both the front and rear ends of the rubber sleeve. The position of the rubber sleeve corresponds to the position of the second push block, and the rubber sleeve is made of rubber in one piece.

[0009] Preferably, a saw blade is provided in front of the rubber sleeve and fitted onto the outer surface of the saw blade shaft, and a fixing head is connected to the front end face of the saw blade and fixedly fitted onto the outer surface of the saw blade shaft.

[0010] Preferably, the outer surface of the internal threaded ring is provided with a semi-cylindrical protective stripe, and the internal threaded ring is made of metal integrally.

[0011] Preferably, the roller bearing ring is fixed to the first push block by screws, and the length of the inner wall diameter of the roller bearing ring is greater than the length of the diameter of the front end of the cutting saw head.

[0012] Preferably, a circular cover plate is provided in front of the two first push blocks, and the cutting saw head is fixed to the circular cover plate by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model can synchronously push two second pushing blocks inward by rotating the internal threaded ring. The inward movement of the second pushing blocks can clamp and fix the saw blade shaft used to drive the saw blade to rotate. By fixing the saw blade shaft, it can prevent the saw blade from rotating when someone accidentally touches the start switch of the cutting saw head. The above technical solution improves the safety of the cutting saw head.

[0015] 2. In this utility model, a rubber sleeve is fitted on one side of the outer surface of the saw blade shaft, and a rubber fixing head is fixedly provided on both the front and rear ends of the rubber sleeve and inserted into the saw blade shaft. The rubber fixing head can fix the saw blade shaft and the rubber sleeve together. The second push block that moves inward will contact the rubber sleeve fitted on the outer surface of the saw blade shaft and fixed thereto. The rubber sleeve made of rubber can increase the friction between the rubber sleeve and the second push block. The above technical solution improves the clamping strength of the saw blade. Attached Figure Description

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

[0017] Figure 2 This is a front view of a partial internal structure of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0020] In the diagram: 1. Cutting saw head; 2. Saw blade; 3. Saw blade shaft; 4. Rubber sleeve; 5. Rubber fixing head; 6. Internal threaded ring; 7. Roller bearing ring; 8. First push block; 9. Inclined surface; 10. Second push block; 11. Strip groove; 12. Metal rod fixing groove; 13. Metal rod; 14. Spring; 15. Metal sleeve; 16. Machine base; 17. Worktable; 18. Machine head connecting arm; 19. First guide rod; 20. Hydraulic cylinder; 21. L-shaped support arm; 22. Lead screw; 23. Second guide rod; 24. Stepper motor; 25. Movable block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The cutting saw head 1 (model KJ-3612-1), saw blade 2 (model K10) and spring 14 (model JX110) mentioned in this utility model can be obtained from the market or through private customization.

[0023] Please see Figures 1 to 4This utility model provides an embodiment of a steel grating crossbar cutting device, including a cutting saw head 1 and a base 16. A worktable 17 is slidably connected to the upper surface of the base 16. The worktable 17 has multiple T-shaped grooves on its surface for mounting fixtures or jigs. An L-shaped support arm 21 is fixedly mounted on one side of the upper surface of the base 16. The upper surface of the L-shaped support arm 21 has a guide groove. A lead screw 22 and two second guide rods 23 pass through the guide groove laterally. A movable block 25 is slidably connected to the guide groove. The movement direction of the worktable 17 is perpendicular to the movement direction of the movable block 25 from a top view. The movable block 25 is penetrated by the second guide rods 23 and threadedly connected to the lead screw 22. A stepper motor 24 is fixedly installed on one side of the upper end face of the arm 21. The output shaft of the stepper motor 24 is connected to the lead screw 22 via a coupling. A hydraulic cylinder 20 is installed on the upper end face of the movable block 25. The output end of the hydraulic cylinder 20 is connected to the head connecting arm 18. The upper end face of the head connecting arm 18 is provided with four first guide rods 19, which pass through the movable block 25. A cutting saw head 1 is installed at the bottom end of the head connecting arm 18. An internal threaded ring 6 is connected to one side of the outer surface of the cutting saw head 1 via a threaded structure. A roller bearing ring 7 is installed in the middle position inside the internal threaded ring 6 via a roller bearing. A first push block 8 is fixedly provided on both sides inside the roller bearing ring 7. A first push block 8 is provided on the outer side of the first push block 8. The saw head 1 has a slotted groove 11 inside. A metal rod fixing groove 12 is provided on one side of the inner wall of the slotted groove 11. A metal rod 13 is fixed inside the metal rod fixing groove 12. A spring 14 is fitted onto the outer surface of the metal rod 13. One end of the spring 14 is connected to a metal sleeve 15 fitted onto the outer surface of the metal rod 13. A second push block 10 is fixed onto the surface of the metal sleeve 15 facing the first push block 8. The surface of the first push block 8 facing the second push block 10 is an inclined surface 9, and a saw blade shaft 3 is provided between the two second push blocks 10. When the saw head 1 is not needed temporarily, the internal threaded ring 6 can be manually rotated. Driven by the threaded structure, the rotating internal threaded ring 6 can move back and forth. Moving the internal threaded ring 6 forward... As the internal threaded ring 6 moves, the roller bearing ring 7 connected to it via the roller bearing and the first push block 8 fixed on the inner wall of the roller bearing ring 7 will move together. As the first push block 8 moves, the inclined surface 9 on the outer surface of the first push block 8 will contact the second push block 10, and under the push of the inclined surface 9, the second push block 10 will gradually move inward. The inward movement of the second push block 10 can clamp and fix the saw blade shaft 3 used to drive the saw blade 2 to rotate. By fixing the saw blade shaft 3, it is possible to prevent the saw blade 2 from rotating when someone accidentally touches the start switch of the cutting saw head 1. The above technical solution improves the safety of the cutting saw head 1.

[0024] The surface of the second push block 10 facing the saw blade shaft 3 is arc-shaped, and the arc-shaped surface on the outer surface of the second push block 10 is provided with multiple anti-slip stripes; the anti-slip stripes can improve the friction of the second push block 10.

[0025] A rubber sleeve 4 is provided on one side of the outer surface of the saw blade shaft 3. A rubber fixing head 5 is fixedly provided on both the front and rear ends of the rubber sleeve 4 and inserted into the saw blade shaft 3. The position of the rubber sleeve 4 corresponds to the position of the second push block 10, and the rubber sleeve 4 is made of rubber in one piece. The rubber fixing head 5 can fix the saw blade shaft 3 and the rubber sleeve 4 together. The inwardly moving second push block 10 will contact the rubber sleeve 4 which is sleeved on the outer surface of the saw blade shaft 3 and fixed thereto. The rubber sleeve 4, which is made of rubber, can increase the friction between the rubber sleeve 4 and the second push block 10. The above technical solution improves the clamping strength of the saw blade 2.

[0026] A saw blade 2 is fitted onto the outer surface of the saw blade shaft 3 at the front of the rubber sleeve 4, and a fixing head is connected to the front end of the saw blade 2 and fixed onto the outer surface of the saw blade shaft 3. When the second push block 10 is pushed inward, the metal sleeve 15 fixed to it will move inward together and compress the spring 14. When the cutting saw head 1 is needed, the inner thread ring 6 is rotated in the opposite direction. With the reverse rotation of the inner thread ring 6 and the reaction force of the compressed spring 14, the second push block 10 can be gradually pushed outward to release the clamping and fixing of the saw blade shaft 3. After the fixing of the saw blade shaft 3 is released, the saw blade shaft 3 can be rotated by the cutting saw head 1. When the saw blade shaft 3 rotates, the saw blade 2 fitted onto the outer surface of the saw blade shaft 3 will rotate together. The rotating saw blade 2 can then be used to cut the crossbar of the steel grating.

[0027] The outer surface of the internal threaded ring 6 is provided with a semi-cylindrical protective stripe, and the internal threaded ring 6 is made of metal in one piece; the semi-cylindrical protective stripe on the outer surface of the internal threaded ring 6 makes it easier to rotate the internal threaded ring 6.

[0028] The roller bearing ring 7 is fixed to the first push block 8 by screws, and the length of the inner diameter of the roller bearing ring 7 is greater than the length of the front end diameter of the cutting saw head 1. Since the length of the inner diameter of the roller bearing ring 7 is greater than the length of the front end diameter of the cutting saw head 1, there is no need to worry about the inner wall of the roller bearing ring 7 hitting the threads on the outer surface of the cutting saw head 1 during the movement of the roller bearing ring 7.

[0029] A circular cover plate is provided in front of the two first push blocks 8, and the cutting saw head 1 is fixed to the circular cover plate by screws; the circular cover plate can seal the internal structure of the cutting saw head 1, and when the internal structure of the cutting saw head 1 fails, the circular cover plate can be removed to repair its internal structure.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A steel grating crossbar cutting device, comprising a cutting saw head (1) and a base (16), wherein a worktable (17) is slidably connected to the upper end face of the base (16), and an L-shaped support arm (21) is fixedly installed on one side of the upper end face of the base (16). The upper end face of the L-shaped support arm (21) is provided with a guide groove, through which a lead screw (22) and two second guide rods (23) are transversely connected. A movable block (25) is slidably connected to the guide groove, and the movable block (25) is penetrated by the second guide rods (23) and connected to the lead screw (22). A threaded connection is used. A stepper motor (24) is fixedly installed on one side of the upper end face of the L-shaped support arm (21). The output shaft of the stepper motor (24) is connected to the lead screw (22) through a coupling. A hydraulic cylinder (20) is installed on the upper end face of the movable block (25). The output end of the hydraulic cylinder (20) is connected to the head connecting arm (18). The upper end face of the head connecting arm (18) is provided with four first guide rods (19). The first guide rods (19) pass through the movable block (25). A cutting saw head (1) is installed at the bottom end of the head connecting arm (18). The feature is that: One side of the outer surface of the cutting saw head (1) is connected to an internal threaded ring (6) by a threaded structure. A roller bearing ring (7) is installed in the middle of the inner threaded ring (6) by a roller bearing. A first push block (8) is fixed on both sides of the inner surface of the roller bearing ring (7). A strip groove (11) located inside the cutting saw head (1) is provided on the outer side of the first push block (8). A metal rod fixing groove (12) is provided on one side of the inner wall of the strip groove (11). A metal rod (13) is fixed inside the metal rod fixing groove (12). A spring (14) is sleeved on the outer surface of the metal rod (13). One end of the spring (14) is connected to a metal sleeve (15) sleeved on the outer surface of the metal rod (13). A second push block (10) is fixed on the surface of the metal sleeve (15) facing the first push block (8). The surface of the first push block (8) facing the second push block (10) is an inclined surface (9). A saw blade shaft (3) is provided between the two second push blocks (10).

2. The steel grating crossbar cutting equipment according to claim 1, characterized in that: The surface of the second push block (10) facing the saw blade shaft (3) is arc-shaped, and the arc-shaped surface on the outer surface of the second push block (10) is provided with multiple anti-slip stripes.

3. The steel grating crossbar cutting equipment according to claim 1, characterized in that: A rubber sleeve (4) is provided on one side of the outer surface of the saw blade shaft (3). A rubber fixing head (5) inserted into the saw blade shaft (3) is fixedly provided on the front and rear ends of the rubber sleeve (4). The position of the rubber sleeve (4) corresponds to the position of the second push block (10), and the rubber sleeve (4) is made of rubber in one piece.

4. The steel grating crossbar cutting equipment according to claim 3, characterized in that: The rubber sleeve (4) has a saw blade (2) sleeved on the outer surface of the saw blade shaft (3) in front of it, and the front end face of the saw blade (2) is connected to a fixing head that is fixedly sleeved on the outer surface of the saw blade shaft (3).

5. The steel grating crossbar cutting equipment according to claim 1, characterized in that: The outer surface of the internal threaded ring (6) is provided with a semi-cylindrical protective stripe, and the internal threaded ring (6) is made of metal integrally.

6. The steel grating crossbar cutting equipment according to claim 1, characterized in that: The roller bearing ring (7) is fixed to the first push block (8) by screws, and the length of the inner wall diameter of the roller bearing ring (7) is greater than the length of the front end diameter of the cutting saw head (1).

7. The steel grating crossbar cutting equipment according to claim 1, characterized in that: A circular cover plate is provided in front of the two first push blocks (8), and the cutting saw head (1) is fixed to the circular cover plate by screws.

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