Polishing device for steel structure

Abstract

The utility model relates to the field of steel structure machining, and discloses a polishing device for a steel structure, a moving frame is installed between sliding blocks of two moving modules, a penetrating opening is formed in the moving frame in a left-right penetrating mode, and three tensioning wheels distributed in an equilateral triangle shape are installed at the left end of the moving frame; a rotating belt is installed on the tensioning wheel in a tensioning mode, supporting frames are symmetrically arranged on the left side and the right side of the upper portion of the base, two sets of supporting rollers are installed between the two supporting frames in an up-down sliding mode, a rotating base is installed at the left end of the upper portion of the base in an up-down sliding mode, and a three-jaw chuck is rotatably installed in the rotating base; the inner wall of the left end of a steel pipe is connected with a fixed clamping jaw of a three-jaw chuck, a grinding belt capable of moving left and right is arranged in a matched mode, the distance between the three-jaw chuck and the left end of the steel pipe is larger than the distance between the left end of the grinding belt and the left end of a tensioning wheel, and the grinding belt can also move left and right back and forth; and the grinding belt rotating continuously can grind the rotating steel pipe in all directions.

Description

Technical Field

[0001] The utility model relates to the field of steel structure processing, in particular to a polishing device for steel structures. Background Art

[0002] Steel structures are generally made of steel materials, and their main structures mainly include three components, namely steel trusses, steel columns, and steel beams. A polishing mechanism for processing steel structure struts is disclosed in the Chinese utility model patent with the announcement number CN 220128458U. The two-way screw is driven to rotate by turning the knob, so that the slider drives the arc-shaped clamping block to clamp one end of the steel structure body. After clamping and fixing, the electric push rod drives the fixing block and the anti-slip plate to fix the other end of the steel structure body, thereby improving the clamping effect of the steel structure body. When the steel structure body is polished, the steel structure body is driven to rotate by the stepper motor.

[0003] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: steel columns are generally hollow steel pipes. In the above structure, when fixing the steel column, the upper and lower sliders are fixed on the upper and lower sides of the steel pipe to fix it, which also makes the slider block the right end of the steel pipe, making it impossible to polish the right side, and the whole structure does not have a support structure for the steel pipe. When the overall length of the steel pipe is long and the mass is large, it is easy to fall off. For this reason, we designed a polishing device for steel structures. Utility Model Content

[0004] In order to solve the technical problem that the right end of a fixed steel pipe is blocked and the right side cannot be polished, the utility model provides a polishing device for a steel structure.

[0005] The utility model is implemented by the following technical scheme: a polishing device for steel structure, comprising a base, two mobile modules are symmetrically installed above the base, a mobile frame is installed between the sliders of the two mobile modules, the mobile frame is penetrated by a through interface on the left and right, and three tensioning wheels distributed in an equilateral triangle are installed on the left end of the mobile frame, and a rotating belt is tensionedly installed on the tensioning wheel;

[0006] Support frames are symmetrically arranged on the left and right sides above the base, two groups of support rollers are slidably installed between the two support frames, and a rotating seat is slidably installed on the left end above the base, a three-jaw chuck is rotatably installed in the rotating seat, and the three-jaw chuck is located above the support rollers.

[0007] As a further improvement of the above solution, a grinding belt is provided at the inner end of the rotating belt, and the grinding belt protrudes 3-5 mm from the inner surface of the rotating belt, and the grinding belt is used to contact the outer surface of the steel pipe to grind it;

[0008] The surface of the tensioning wheel is provided with a rolling notch in a ring structure, and the grinding belt is placed in the rolling notch. The grinding belt is above the rolling notch and its width is smaller than the width of the rolling notch. The two will not contact each other, thereby not causing wear to the tensioning wheel, making it less likely for the tensioning wheel and the rotating belt to slip.

[0009] As a further improvement of the above scheme, the tensioning wheel is rotatably installed on the mobile frame through the installation shaft, the three installation shafts pass through the mobile frame and are placed on its left side, and a pulley is installed on the left end of the installation shaft, the three pulleys are connected by belts, and the lowest installation shaft is connected to the output shaft of the driving motor through a coupling, and the three pulleys can rotate synchronously, thereby enabling the three tensioning wheels to rotate, so that the grinding belt can rotate and perform grinding.

[0010] As a further improvement of the above scheme, two symmetrically arranged deflection wheels are rotatably installed on the upper left side of the movable frame, the belt is connected to the deflection wheel, the top of the belt is above the rotating belt, and there is a distance of 2-3 cm between the two. The height of the belt is higher than the tensioning wheel, and the belt will not contact the surface of the steel pipe, thereby facilitating the steel pipe to pass through the penetration port and contact the grinding belt.

[0011] As a further improvement of the above scheme, a rotating motor is installed on the left surface of the rotating seat, the output shaft of the rotating motor is connected to the three-jaw chuck, and the right surface of the fixed jaw on the three-jaw chuck is 4-7cm away from the right surface of the three-jaw chuck. After the fixed jaw is fixed to the steel pipe, the distance between the three-jaw chuck and the left end of the steel pipe is greater than the distance between the left end of the grinding belt and the left end of the tensioning wheel. When the grinding belt is grinding the leftmost end of the steel pipe, the tensioning wheel will not contact the three-jaw chuck.

[0012] As a further improvement of the above scheme, lifting frames are symmetrically welded on the front and rear sides of the outer ring surface of the rotating seat, the bottom end of the lifting frame is connected to the push rod of the hydraulic cylinder, and fixed frames are installed on the front and rear sides of the left end of the base. The fixed frame is provided with a sliding groove for inward movement, and a sliding block is provided on the outward side of the lifting frame. The sliding block is slidably placed in the sliding groove, and the height of the three-jaw chuck can be changed as needed, thereby being suitable for steel pipes with different outer diameters.

[0013] As a further improvement of the above scheme, two adjustment sliding holes are formed on the left and right sides of the support frame, and the two adjustment sliding holes are connected by a rectangular hole. The left and right ends of the support roller are rotatably installed in the mounting shaft seat, and the mounting shaft seat slides up and down in the adjustment sliding hole and the rectangular hole. An adjustment screw is installed on the mounting shaft seat that deflects left and right and rotates. The adjustment screw passes through the support frame and is placed above it. The mounting shaft seat can be moved up and down by rotating the adjustment screw, which is suitable for steel pipes with different outer diameters.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model connects the inner wall of the left end of the steel pipe with the fixed claw of the three-claw chuck, and is equipped with a grinding belt that can move left and right. The distance between the three-claw chuck and the left end of the steel pipe is greater than the distance between the left end of the grinding belt and the left end of the tensioning wheel. The grinding belt can also move back and forth left and right. The continuously rotating grinding belt can perform all-round grinding on the rotating steel pipe without leaving any residue.

[0016] 2. By passing two groups of support rollers between the grinding belts, it can support the steel pipe. Combined with the three-jaw chuck, the steel pipe is more stable when rotating and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a polishing device for a steel structure provided by the utility model;

[0018] Figure 2 for Figure 1 Center left and right isometric drawings;

[0019] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point B.

[0021] Description of main symbols:

[0022] 1. Base; 2. Mobile module; 3. Support frame; 31. Adjusting slide hole; 32. Adjusting screw rod; 4. Support roller; 41. Installing shaft seat; 5. Mobile frame; 51. Through-interface; 6. Three-jaw chuck; 61. Fixed jaw; 7. Rotating seat; 71. Lifting frame; 72. Fixed frame; 73. Hydraulic cylinder; 8. Rotating belt; 81. Grinding belt; 9. Tensioning wheel; 91. Rolling notch; 92. Pulley; 93. Deflection wheel; 94. Belt; 95. Installing shaft. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Example:

[0025] Please combine Figure 1-Figure 4A polishing device for a steel structure in this embodiment includes a base 1, two mobile modules 2 are symmetrically installed above the base 1, a mobile frame 5 is installed between the sliders of the two mobile modules 2, and a through-port 51 is provided on the left and right sides of the mobile frame 5, and three tensioning wheels 9 distributed in an equilateral triangle are installed on the left end of the mobile frame 5, and a rotating belt 8 is tensionedly installed on the tensioning wheel 9;

[0026] Support frames 3 are symmetrically arranged on the left and right sides above the base 1, and two groups of support rollers 4 are slidably installed between the two support frames 3, and a rotating seat 7 is slidably installed on the left end above the base 1, and a three-jaw chuck 6 is rotatably installed in the rotating seat 7, and the three-jaw chuck 6 is located above the support rollers 4.

[0027] A grinding belt 81 is provided at the inner end of the rotating belt 8, and the grinding belt 81 protrudes from the inner surface of the rotating belt 8 by 3-5 mm. The grinding belt 81 is used to contact the outer surface of the steel pipe to grind it;

[0028] A rolling notch 91 with an annular structure is provided on the surface of the tensioning wheel 9, and the grinding belt 81 is placed in the rolling notch 91. The grinding belt 81 is above the rolling notch 91, and its width is smaller than the width of the rolling notch 91. The two will not contact each other, and will not cause wear to the tensioning wheel 9, making it less likely for slippage to occur between the tensioning wheel 9 and the rotating belt 8.

[0029] The tensioning wheel 9 is rotatably installed on the mobile frame 5 via the installation shaft 95. The three installation shafts 95 pass through the mobile frame 5 and are placed on its left side. A pulley 92 is installed on the left end of the installation shaft 95. The three pulleys 92 are connected by belts 94. The lowest installation shaft 95 is connected to the output shaft of the driving motor through a coupling. The three pulleys 92 can rotate synchronously, thereby enabling the three tensioning wheels 9 to rotate, so that the grinding belt 81 can rotate and perform grinding.

[0030] Two symmetrically arranged deflection wheels 93 are rotatably installed on the upper left side of the movable frame 5, and a belt 94 is connected to the deflection wheel 93. The uppermost part of the belt 94 is above the rotating belt 8, and there is a distance of 2-3 cm between the two. The height of the belt 94 is higher than the tensioning wheel 9, and the belt 94 will not contact the surface of the steel pipe, thereby facilitating the steel pipe to pass through the penetration port 51 and contact the grinding belt 81.

[0031] A rotating motor is installed on the left surface of the rotating seat 7, and the output shaft of the rotating motor is connected to the three-jaw chuck 6, and the right side surface of the fixed jaw 61 on the three-jaw chuck 6 is 4-7 cm away from the right side surface of the three-jaw chuck 6. After the fixed jaw 61 is fixed to the steel pipe, the distance between the three-jaw chuck 6 and the left end of the steel pipe is greater than the distance between the left end of the grinding belt 81 and the left end of the tensioning wheel 9. When the grinding belt 81 is grinding the leftmost end of the steel pipe, the tensioning wheel 9 will not contact the three-jaw chuck 6.

[0032] Lifting frames 71 are symmetrically welded on the front and rear sides of the outer ring surface of the rotating seat 7. The bottom end of the lifting frame 71 is connected to the push rod of the hydraulic cylinder 73. Fixed frames 72 are installed on the front and rear sides of the left end of the base 1. The fixed frame 72 is provided with a sliding groove for inward movement. A sliding block is provided on the outward side of the lifting frame 71. The sliding block is slidably placed in the sliding groove. The height of the three-jaw chuck 6 can be changed as needed, so it is suitable for steel pipes with different outer diameters.

[0033] Two adjusting slide holes 31 are formed through the left and right sides of the support frame 3, and the two adjusting slide holes 31 are connected by a rectangular hole. The left and right ends of the support roller 4 are rotatably installed in the mounting shaft seat 41, and the mounting shaft seat 41 slides up and down in the adjusting slide hole 31 and the rectangular hole. An adjusting screw rod 32 is installed on the mounting shaft seat 41 to deflect left and right and rotate. The adjusting screw rod 32 passes through the support frame 3 and is placed above it. The mounting shaft seat 41 can be moved up and down by rotating the adjusting screw rod 32, which is suitable for steel pipes with different outer diameters.

[0034] The implementation principle of a polishing device for steel structure in the embodiment of the present application is as follows: in actual use, the height of the support roller 4 and the three-jaw chuck 6 is adjusted according to the size of the steel pipe. Specifically, the screw rod 32 is rotated to adjust and the height of the hydraulic cylinder 73 is changed. Then, the steel pipe is placed above the two support rollers 4. At this time, the outer ring surface of the steel pipe is just in contact with the lower surface of the grinding belt 81. Then, the fixed claws 61 on the three-jaw chuck 6 are extended into the inner ring of the steel pipe, and the three-jaw chuck 6 is expanded outward to fix the steel pipe. At this time, the power supply of the rotating motor and the driving motor can be turned on. The rotating motor will rotate the three-jaw chuck 6, and then the steel pipe will rotate. The rotation of the driving motor will rotate the rotating belt 8, and then the grinding belt 81 can rotate, so that the surface of the steel pipe can be polished. In the process of polishing, the movable frame 5 can move left and right under the action of the movable module 2, so that it can be polished in all directions.

[0035] By connecting the inner wall of the left end of the steel pipe with the fixed jaw 61 of the three-jaw chuck 6, a grinding belt 81 that can move left and right is provided, and the distance between the three-jaw chuck 6 and the left end of the steel pipe is greater than the distance between the left end of the grinding belt 81 and the left end of the tension wheel 9, the grinding belt 81 can also move back and forth left and right, and the continuously rotating grinding belt 81 can perform all-round grinding on the rotating steel pipe without leaving any residue;

[0036] By passing two groups of support rollers 4 between the grinding belts 81, the steel pipe can be supported. In combination with the three-jaw chuck 6, the steel pipe is more stable during rotation and is less likely to fall off.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A polishing device for a steel structure, comprising a base (1), characterized in that: Two movable modules (2) are symmetrically mounted above the base (1); a movable frame (5) is mounted between the sliders of the two movable modules (2); a through-port (51) is provided on the left and right sides of the movable frame (5); and three tensioning wheels (9) distributed in an equilateral triangle are mounted on the left end of the movable frame (5); a rotating belt (8) is tensionedly mounted on the tensioning wheel (9); Support frames (3) are symmetrically arranged on the left and right sides above the base (1); two groups of support rollers (4) are slidably mounted between the two support frames (3); and a rotating seat (7) is slidably mounted on the left end above the base (1); a three-jaw chuck (6) is rotatably mounted in the rotating seat (7); and the three-jaw chuck (6) is located above the support rollers (4).

2. A polishing device for steel structure according to claim 1, characterized in that: A grinding belt (81) is provided at the inner end of the rotating belt (8), and the grinding belt (81) protrudes from the inner surface of the rotating belt (8) by 3-5 mm; The surface of the tension wheel (9) is provided with a rolling notch (91) in an annular structure, and the grinding belt (81) is placed in the rolling notch (91).

3. A polishing device for steel structure as claimed in claim 2, characterized in that: The tension wheel (9) is rotatably mounted on the mobile frame (5) via a mounting shaft (95), three mounting shafts (95) pass through the mobile frame (5) and are placed on the left side thereof, and a pulley (92) is mounted on the left end of the mounting shaft (95), the three pulleys (92) are connected via a belt (94), and the lowest mounting shaft (95) is connected to the output shaft of the driving motor via a coupling.

4. A polishing device for steel structure according to claim 1, characterized in that: A rotating motor is installed on the left surface of the rotating seat (7), the output shaft of the rotating motor is connected to the three-jaw chuck (6), and the right surface of the fixed clamping jaw (61) on the three-jaw chuck (6) is 4-7 cm away from the right surface of the three-jaw chuck (6).

5. A polishing device for steel structure as claimed in claim 3, characterized in that: Two symmetrically arranged deflection wheels (93) are rotatably mounted on the upper left side of the mobile frame (5), and the belt (94) is connected to the deflection wheels (93). The uppermost portion of the belt (94) is located above the rotating belt (8), and there is a 2-3 cm gap between the two.

6. A polishing device for steel structure according to claim 1, characterized in that: A lifting frame (71) is symmetrically welded on both sides of the outer ring surface of the rotating seat (7), and the bottom end of the lifting frame (71) is connected to the push rod of the hydraulic cylinder (73); A fixing frame (72) is installed at the front and rear sides of the left end of the base (1), and a sliding groove is opened on the inward movement of the fixing frame (72). A sliding block is arranged on the outward side of the lifting frame (71), and the sliding block is slidably placed in the sliding groove.

7. A polishing device for steel structure as claimed in claim 1, characterized in that: Two adjusting sliding holes (31) are formed through the left and right sides of the support frame (3), and the two adjusting sliding holes (31) are connected through a rectangular hole. The left and right ends of the support roller (4) are both rotatably mounted in the mounting shaft seat (41), and the mounting shaft seat (41) slides up and down and is placed in the adjusting sliding hole (31) and the rectangular hole. An adjusting screw rod (32) is installed on the mounting shaft seat (41) so as to deflect left and right and rotate, and the adjusting screw rod (32) passes through the support frame (3) and is placed above it.

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