Multi-group belt wheel full angle grinder

Abstract

The utility model relates to a multi-group abrasive belt wheel full-angle grinder, comprising a frame, a abrasive belt wheel device, the abrasive belt wheel device comprising a surface grinding mechanism and a dead angle grinding mechanism, the size of the dead angle grinding belt is smaller than the surface grinding belt, the dead angle grinding mechanism comprises a first contact abrasive belt wheel, a first working abrasive belt wheel, a first driving mechanism and a front and rear adjusting mechanism, the first contact abrasive belt wheel is arranged in the forward direction of the dead angle grinding mechanism, and the wheel diameter of the first contact abrasive belt wheel is smaller than the first working abrasive belt wheel, so that full-angle grinding of the workpiece surface is realized, the size of the dead angle grinding belt is smaller than the surface grinding belt, and the wheel diameter of the first contact abrasive belt wheel is smaller than the first working abrasive belt wheel, so that the dead angle grinding mechanism can flexibly enter a smaller space for grinding, so as to facilitate grinding at the dead angle of the casting, meet the grinding requirements of workpieces of various shapes, and realize the purpose of full-angle grinding.

Description

Technical Field

[0001] The utility model relates to the field of grinders, in particular to a multi-group abrasive belt wheel full-angle grinder. Background Art

[0002] Castings refer to metal parts made through the casting process, which is a manufacturing method that pours molten metal into a mold and waits for it to cool and solidify to form the desired shape. Castings are widely used in the production of hardware and automotive parts. Automotive parts, such as wheels, cylinder blocks, cylinder heads, pistons, flywheel housings, etc., are also made through the casting process. After casting, these parts need to remove the pouring head, clean the burrs, and grind and polish them to meet the precision and performance requirements of automotive parts; at the same time, hardware, such as door handles, bathroom faucets, etc., are usually made from castings through further processing. They need to be grinded and polished after casting to ensure appearance and performance;

[0003] Existing castings have different shapes. Whether they are hardware parts or automotive parts, they may encounter the problem of hard-to-grind corners during the grinding process after casting. This not only affects the appearance of the product, but also may affect its performance and service life. Existing grinding technology, such as using a sanding machine, can only grind the surface of the casting. The dead corners on some parts with complex shapes or curved surfaces still need to be manually polished with a handheld grinder, which is time-consuming and labor-intensive, and the grinding efficiency is low. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a multi-group abrasive belt wheel full-angle grinder capable of grinding castings at all angles in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-group abrasive belt wheel full-angle grinder, comprising a frame, at least one group of abrasive belt wheel devices arranged on the frame, the abrasive belt wheel device comprising a surface grinding mechanism and a dead angle grinding mechanism, both of which are wound with a surface grinding belt and a dead angle grinding belt, the dead angle grinding mechanism is movably arranged on one side of the axial direction of the surface grinding mechanism, the size of the dead angle grinding belt is smaller than the surface grinding belt, the dead angle grinding mechanism comprises a first contact abrasive belt wheel, a first working abrasive belt wheel, a first driving mechanism for driving the first contact abrasive belt wheel or the first working abrasive belt wheel to rotate, and a front-rear adjusting mechanism for driving the dead angle grinding mechanism to slide along the frame, the dead angle grinding belt is coiled on the first contact abrasive belt wheel and the first working abrasive belt wheel, the first contact abrasive belt wheel is arranged in the forward direction of the dead angle grinding mechanism, and the wheel diameter of the first contact abrasive belt wheel is smaller than the first working abrasive belt wheel.

[0006] By adopting the above technical scheme, at least one group of grinding wheel devices including surface grinding belts and dead angle grinding belts are arranged on the frame, so that full-angle grinding of the workpiece surface, especially effective grinding of dead angle areas, is achieved. The size of the dead angle grinding belt is smaller than the surface grinding belt, and the wheel diameter of the first contact grinding wheel is smaller than the first working grinding wheel, so that the dead angle grinding mechanism can flexibly enter a smaller space for grinding. The movable setting of the dead angle grinding mechanism allows it to adjust its position along one side of the axial direction of the surface grinding mechanism to facilitate grinding at the dead angle of the casting, meet the grinding requirements of workpieces of various shapes, achieve the purpose of full-angle grinding, improve the grinding effect and grinding efficiency, and expand the scope of application; and the dead angle grinding mechanism can be flexibly used and stored to improve space utilization.

[0007] Furthermore, the first driving mechanism includes a first motor and an extended grinding arm arranged at the frame corresponding to the first contact grinding belt wheel, the first contact grinding belt wheel is arranged at the end of the extended grinding arm away from the first working grinding belt wheel, the conveying end of the first motor is connected to the first working grinding belt wheel, and the dead angle grinding belt and the first contact grinding belt wheel are driven to rotate through the first working grinding belt wheel.

[0008] By adopting the above technical solution, the design of the first driving mechanism enables the dead angle grinding belt and the first contact grinding belt wheel to be driven by the same motor, which simplifies the power transmission system and improves the grinding efficiency. The first motor drives the large-diameter first working grinding belt wheel at the rear to rotate, and transmits power to the first working grinding belt wheel on the extended grinding arm through the dead angle grinding belt, ensuring that the grinding belt maintains appropriate tension between the two wheels, thereby achieving a uniform grinding effect. The larger first working grinding belt wheel can provide a larger contact area, which helps to apply uniform pressure during the grinding process and avoid local overheating or wear. The smaller first contact grinding belt wheel helps to stabilize the position of the dead angle grinding belt and ensure that the dead angle grinding belt does not deviate from the predetermined trajectory during the grinding process. The dead angle grinding belt and the first contact grinding belt wheel are then driven to rotate by the wheel, so that the periphery of the first contact grinding belt wheel is empty, which is convenient for adjusting the position of the casting for fixed-point grinding, thereby achieving effective grinding of the dead angle area.

[0009] Furthermore, the first driving mechanism includes a first motor, an active synchronous wheel arranged at the output end of the first motor, and a driven synchronous wheel arranged on one side of the first contact grinding belt wheel and / or the first working grinding belt wheel and rotating synchronously, a synchronous belt is wound around the driven synchronous wheel and the active synchronous wheel, the first motor is arranged between the first contact grinding belt wheel and the first working grinding belt wheel, and drives the first contact grinding belt wheel and / or the first working grinding belt wheel to rotate through the synchronous belt.

[0010] By adopting the above technical solution, the first motor is arranged between the first contact grinding belt wheel and the first working grinding belt wheel, and is connected by a synchronous belt between the active synchronous wheel and the driven synchronous wheel, so that the first motor can drive the first contact grinding belt wheel and / or the first working grinding belt wheel to rotate, ensuring that even during high-speed grinding, the dead angle grinding belt can maintain synchronous operation with the first contact grinding belt wheel and the first working grinding belt wheel, and avoiding the problem of interference during grinding and the first contact grinding belt wheel not being able to be miniaturized when the first motor is arranged at the position of the first contact grinding belt wheel.

[0011] Furthermore, the first driving mechanism also includes a first tensioning adjustment component arranged in the dead angle grinding belt, the first tensioning adjustment component includes a first tensioning arm and a first tensioning cylinder, one end of the first tensioning arm is hinged to the frame through a first hinge point, and the other end is provided with a first tensioning wheel that rotates against the dead angle grinding belt, one end of the first tensioning cylinder is hinged to the frame, and the other end is hinged to the first tensioning arm, and drives the first tensioning wheel to swing with the first hinge point as the fulcrum.

[0012] By adopting the above technical solution, the first tensioning cylinder is extended and retracted to drive the first tensioning wheel to swing, thereby adjusting the tension of the dead angle grinding belt to ensure that the contact pressure between the belt and the workpiece is uniform during the grinding process. The use of the tensioning adjustment component allows the tension of the dead angle grinding belt to be precisely adjusted to adapt to workpiece materials of different hardness and thickness, thereby avoiding the slippage of the dead angle grinding belt.

[0013] Furthermore, an angle adjustment component is provided at one end of the first tensioning wheel, and the angle adjustment component includes a first tensioning frame and a first connecting seat. The first tensioning wheel is rotatably arranged on the first tensioning frame, and the first connecting seat is arranged on the first tensioning arm. A first adjusting screw is provided at the first tensioning frame corresponding to the first connecting seat. The first adjusting screw passes through the first tensioning frame and is threadedly connected to the first connecting seat, and the eccentric angle of the first tensioning wheel is adjusted by rotating the first adjusting screw.

[0014] By adopting the above technical solution, the eccentric angle of the first tensioning wheel is adjusted by rotating the first adjusting screw, so that the tensioning wheel can adjust the eccentric position to prevent the sanding belt from deviating, and the angle can be adjusted according to the specific shape of the workpiece to be polished, thereby improving the adaptability and effect of polishing.

[0015] Furthermore, a correction spring is provided on the outer sleeve of the first adjusting screw, one end of the correction spring is against the first connecting seat, and the other end is against the first tensioning frame. A paint box for installing sanding belt paint is provided on one side of the frame corresponding to the dead angle sanding belt.

[0016] By adopting the above technical solution, the deviation correction spring automatically adjusts the position of the tensioning wheel through the interaction with the first connecting seat and the first tensioning frame, adjusts the deviation problem of the sanding belt, and realizes automatic deviation correction adjustment. In order to protect the sanding belt and thus extend the service life of the sanding belt, soap is applied to the sanding belt to extend the life of the sanding belt. The sanding belt coated with soap can cool the sanding belt and disperse the concentrated heat of the sanding belt, thereby avoiding the sanding belt from breaking. The setting of the paint box provides a continuous supply of paint for the sanding belt, thereby extending the service life of the sanding belt.

[0017] Furthermore, the front and rear adjustment mechanism includes a front and rear adjustment cylinder arranged at an end of the frame away from the first contact grinding belt wheel, a dead angle grinding plate arranged on the frame for installing the dead angle grinding mechanism, front and rear sliding guide rails arranged at the dead angle grinding mechanism corresponding to the frame, and front and rear sliding blocks arranged on the dead angle grinding plate and sliding in cooperation with the front and rear sliding guide rails. The front and rear adjustment cylinder is arranged parallel to the front and rear sliding guide rails and the output end is connected to the dead angle grinding plate, and drives the dead angle grinding plate to slide forward and backward along the front and rear sliding guide rails.

[0018] By adopting the above technical solution and the design of the front and rear adjustment mechanism, the dead angle grinding mechanism can be adjusted along the frame fore and aft position according to the specific needs of the workpiece. When grinding the dead angle, it can be moved forward to the outside of the frame to provide sufficient contact space, which is convenient for cooperating with the robot for automated grinding, thereby enhancing the flexibility and adaptability of the machine.

[0019] Furthermore, the surface grinding mechanism includes a sanding belt main beam, a second contact sanding belt wheel and a second working sanding belt wheel arranged on the sanding belt main beam, and a second motor that drives the second contact sanding belt wheel to rotate, the surface grinding sanding belt is wound around the second contact sanding belt wheel and the second working sanding belt wheel, a floating grinding assembly is provided between the sanding belt main beam and the frame, the floating grinding assembly includes floating arms arranged at both ends of the sanding belt main beam corresponding to the second motor, bearing columns are provided at both ends of the floating arms, the floating arms are movably connected to the sanding belt main beam and the frame through the bearing columns, and the sanding belt main beam is swung in the frame through the floating arms, and a floating limit block is provided at one end of the frame corresponding to the floating arm.

[0020] By adopting the above technical solution and introducing a floating grinding assembly, the main beam of the sanding belt is allowed to swing adaptively according to the shape of the workpiece surface and adapt to the curve of the workpiece surface, thereby achieving smoother and more uniform grinding, improving the uniformity and efficiency of grinding, and avoiding damage to the workpiece due to hard grinding. At the same time, the setting of the floating limit block ensures that the floating direction of the surface grinding mechanism can only be backward and not forward, thereby avoiding excessive swinging.

[0021] Furthermore, the surface grinding mechanism also includes a second tensioning adjustment component arranged in the surface grinding belt, the second tensioning adjustment component includes a second tensioning arm and a second tensioning cylinder arranged at one end of the belt main beam away from the second contact belt wheel, one end of the second tensioning arm is hinged to the belt main beam through a second hinge point, and the other end is provided with a second tensioning wheel that rotates against the surface grinding belt, one end of the second tensioning cylinder is hinged to the belt main beam, and the other end is hinged to the second tensioning arm, and drives the second tensioning wheel to swing with the second hinge point as the fulcrum.

[0022] By adopting the above technical solution, the second tensioning cylinder drives the second tensioning wheel to swing, thereby adjusting the tension of the surface grinding belt to adapt to workpieces with different surface characteristics, providing the surface grinding belt with tension adjustment capability, and ensuring the quality and effect of surface grinding.

[0023] Furthermore, a second tensioning frame is provided at one end of the second tensioning arm away from the second hinge point, a third tensioning cylinder is provided on the second tensioning frame, and a third tensioning frame for installing a second tensioning wheel is provided at the output end of the third tensioning cylinder. The multi-group abrasive belt wheel full-angle grinder also includes a dust removal component arranged at the lower part of the surface grinding mechanism and the dead angle grinding mechanism.

[0024] By adopting the above technical solution, the setting of the third tensioning cylinder further improves the control accuracy of the tensioning force of the second tensioning wheel, achieving more stable surface grinding. The dust removal component sucks the flying chips generated during the grinding process into the waste recovery bucket, avoiding the adverse effects of the flying chips on the working environment and the health of operators.

[0025] Beneficial effects of the utility model:

[0026] 1. By setting up a surface grinding mechanism and a dead angle grinding mechanism, the utility model can comprehensively grind all surfaces of the casting, including the hard-to-reach dead angle areas. The size of the dead angle grinding belt is smaller than the surface grinding belt, so that the dead angle grinding mechanism can flexibly enter a smaller space for grinding, which significantly improves the grinding efficiency.

[0027] 2. The dead angle grinding mechanism can be adjusted along one side of the axis of the surface grinding mechanism to adapt to castings of different shapes and meet the needs of full-angle grinding. The design of the front and rear adjustment mechanism enables the dead angle grinding mechanism to be adjusted along the frame according to the needs of the workpiece, thereby enhancing the flexibility and adaptability of the machine.

[0028] 3. The design of the first driving mechanism simplifies the power transmission system, so that the dead angle grinding belt and the first contact grinding belt wheel can be driven by the same motor, which improves the efficiency and reliability of the system.

[0029] 4. The use of the tension adjustment component allows the tension of the dead angle grinding belt to be accurately adjusted to adapt to workpiece materials of different hardness and thickness. The setting of the correction spring and angle adjustment component realizes automatic correction adjustment to avoid the deviation of the belt and improve the grinding accuracy.

[0030] 5. The paint box setting provides a continuous supply of paint for the sanding belt, extending the service life of the sanding belt and improving the sanding effect.

[0031] 6. The floating grinding assembly allows the main beam of the abrasive belt to swing adaptively according to the surface shape of the workpiece, achieving smoother and more uniform grinding.

[0032] 7. The dust removal component effectively collects flying chips generated during the grinding process, keeps the working environment clean, and protects the health of operators.

[0033] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional schematic diagram of embodiment 1 of the utility model.

[0035] Figure 2 This is a schematic diagram of the internal structure of Example 1 of the utility model.

[0036] Figure 3 It is a three-dimensional schematic diagram of the grinding belt wheel device of Example 1 of the utility model.

[0037] Figure 4 for Figure 3 Exploded diagram.

[0038] Figure 5 for Figure 3 The explosion Figure 2 .

[0039] Figure 6 It is a three-dimensional schematic diagram of the dead angle grinding mechanism of Example 2 of the utility model.

[0040] Figure 7 A three-dimensional schematic diagram of the dead angle grinding mechanism of Example 2 of the utility model Figure 2 . Implementation

[0041] Example 1: Figure 1-Figure 5As shown, a multi-group abrasive belt wheel full-angle grinder comprises a frame 1, two groups of longitudinally arranged abrasive belt wheel devices arranged on the frame 1, the abrasive belt wheel devices comprise a surface grinding mechanism 3 and a dead angle grinding mechanism 2 both of which are wound with a surface grinding belt 31 and a dead angle grinding belt 21, and a dust removal component 10 arranged at the lower part of the frame 1 corresponding to the surface grinding mechanism 3 and the dead angle grinding mechanism 2, the dead angle grinding mechanism 2 is movably arranged on one side of the axial direction of the surface grinding mechanism 3, the width of the dead angle grinding belt 21 is smaller than that of the surface grinding belt 31, the dead angle grinding mechanism 2 comprises a first contact abrasive belt wheel 22, a first A working grinding belt wheel 23, a first motor 24 driving the first contact grinding belt wheel 22 to rotate, an extended grinding arm 25 arranged at the frame 1 corresponding to the first contact grinding belt wheel 22, and a front-rear adjustment mechanism driving the dead angle grinding mechanism 2 to slide along the frame 1, the dead angle grinding belt 21 is wound on the first contact grinding belt wheel 22 and the first working grinding belt wheel 23, the first contact grinding belt wheel 22 is arranged in the forward direction of the dead angle grinding mechanism 2, and the wheel diameter of the first contact grinding belt wheel 22 is smaller than the first working grinding belt wheel 23, and the first contact grinding belt wheel 22 is arranged at the extended grinding arm 25 away from the first working grinding belt wheel 2 3, the conveying end of the first motor 24 is connected to the first working abrasive belt wheel 23, and the first working abrasive belt wheel 23 drives the dead angle grinding belt 21 and the first contact abrasive belt wheel 22 to rotate, and the front and rear adjustment mechanism includes a front and rear adjustment cylinder 6 arranged at one end of the frame 1 away from the first contact abrasive belt wheel 22, a dead angle grinding plate 20 arranged on the frame 1 for the dead angle grinding mechanism 2 to be installed, a front and rear sliding guide rail 11 arranged at the dead angle grinding mechanism 2 of the frame 1, and a front and rear sliding block 201 arranged on the dead angle grinding plate 20 and slidingly cooperating with the front and rear sliding guide rail 11, and the front and rear adjustment cylinder 6 It is arranged parallel to the front and rear sliding guide rails 11 and the output end is connected to the dead angle grinding plate 20, and drives the dead angle grinding plate 20 to slide forward and backward along the front and rear sliding guide rails 11. Under normal circumstances, the dead angle grinding belt 21 is retracted into the frame 1. When dead angle grinding is required, the front and rear adjusting cylinders 6 push the dead angle grinding mechanism 2 to move toward the front section of the frame 1, leaving enough space for the dead angle grinding mechanism 2, so as to facilitate the workpiece to rotate to the dead angle position for fine grinding, improve the grinding effect, and realize full-angle grinding. After completion, the dead angle grinding mechanism 2 is retracted into the frame 1 by pulling the front and rear adjusting cylinders 6, thereby improving equipment utilization and space layout.

[0042] like Figure 3-Figure 5As shown, the first driving mechanism also includes a first tensioning adjustment component arranged in the dead angle grinding belt 21, the first tensioning adjustment component includes a first tensioning arm 26 and a first tensioning cylinder 27, one end of the first tensioning arm 26 is hinged to the frame 1 through a first hinge point 261, and the other end is provided with a first tensioning wheel 41 that rotates against the dead angle grinding belt 21, one end of the first tensioning cylinder 27 is hinged to the frame 1, and the other end is hinged to the first tensioning arm 26, and drives the first tensioning wheel 41 to swing with the first hinge point 261 as a fulcrum, one end of the first tensioning wheel 41 is provided with an angle adjustment component 4, the angle adjustment component 4 includes a first tensioning frame 42 and a first connecting seat 43, the first tensioning wheel 41 is rotatably arranged on the first tensioning frame 42, and the first connecting seat 3 is provided with a first tensioning wheel 41. Placed on the first tensioning arm 26, the first tensioning frame 42 is provided with a first adjusting screw 44 at the first connecting seat 43 corresponding to the first tensioning frame 42. The first adjusting screw 44 passes through the first tensioning frame 42 and is threadedly connected to the first connecting seat 43, and the eccentric angle of the first tensioning wheel 41 is adjusted by rotating the first adjusting screw 44. The first adjusting screw 44 is provided with a correcting spring 441 on the outside, and one end of the correcting spring 441 abuts against the first connecting seat 43, and the other end abuts against the first tensioning frame 42. A paint box 5 for installing abrasive belt paint is provided on one side of the frame 1 corresponding to the dead angle grinding belt 21. The paint box 5 is loaded with soap that abuts against the dead angle grinding belt 21. The dead angle grinding belt 21 is smeared during the grinding process to prevent the dead angle grinding belt 21 from breaking due to high temperature.

[0043] like Figure 3-Figure 5 As shown, the surface grinding mechanism 3 includes a sanding belt main beam 30, a second contact sanding belt wheel 32 and a second working sanding belt wheel 33 arranged on the sanding belt main beam 30, and a second motor 34 that drives the second contact sanding belt wheel 32 to rotate. The surface grinding sanding belt 31 is wound around the second contact sanding belt wheel 32 and the second working sanding belt wheel 33. A floating grinding assembly is arranged between the sanding belt main beam 30 and the frame 1. The floating grinding assembly includes floating arms 35 arranged at both ends of the sanding belt main beam 30 corresponding to the second motor 34. Both ends of the floating arm 35 are provided with bearing columns 351 The floating arm 35 is movably connected to the sanding belt main beam 30 and the frame 1 through the bearing column 351, and the sanding belt main beam 30 is swung in the frame 1 through the floating arm 35. A floating limit block 352 is provided at one end of the frame 1 corresponding to the floating arm 35. In this way, when the second contact sanding belt wheel 32 is grinding, if a hard and difficult-to-grind part of the workpiece is encountered, it can be slightly moved backward and floated to avoid excessive grinding and improve the grinding accuracy. The setting of the floating limit block 352 ensures that the surface grinding mechanism 3 will only float backward and not forward to avoid excessive shaking.

[0044] like Figure 2-Figure 5As shown, the surface grinding mechanism 3 also includes a second tensioning adjustment component arranged in the surface grinding belt 31, and the second tensioning adjustment component includes a second tensioning arm 36 and a second tensioning cylinder 37 which are arranged at one end of the belt main beam 30 away from the second contact belt wheel 32. One end of the second tensioning arm 36 is hinged to the belt main beam 30 through a second hinge point 361, and the other end is provided with a second tensioning wheel 71 which rotates against the surface grinding belt 31. One end of the second tensioning cylinder 71 is hinged to the belt main beam 30, and the other end is hinged to the second tensioning arm 36, and drives the second tensioning wheel 71 to swing with the second hinge point 361 as a fulcrum. A second tensioning frame 7 is provided at one end of the second tensioning arm 36 away from the second hinge point 361, and a third tensioning cylinder 72 is provided on the second tensioning frame 7. The output end of the third tensioning cylinder 72 is provided with a third tensioning frame 73 for installing the second tensioning wheel 71.

[0045] Example 2: Figure 6 , Figure 7 As shown, the first driving mechanism includes a first motor 24, an active synchronous wheel 241 arranged at the output end of the first motor 24, and a driven synchronous wheel 221 arranged at one side of the first contact grinding belt wheel 22 and rotating synchronously. A synchronous belt (not shown in the figure) is wound between the driven synchronous wheel 221 and the active synchronous wheel 241. The first motor 24 is arranged between the first contact grinding belt wheel 22 and the first working grinding belt wheel 23, and drives the first contact grinding belt wheel 22 to rotate through the synchronous belt, so that the first contact grinding belt wheel 22 drives the first working grinding belt wheel 23 to rotate at the same time through the dead angle grinding belt 21, thereby realizing dead angle grinding.

[0046] like Figure 1-Figure 5 As shown, the multi-group abrasive belt wheel full-angle grinder of the utility model can be used with an automated robot arm to perform automated grinding of castings when in use. The robot arm clamps the casting and performs automated grinding according to programming. Under normal circumstances, the dead angle grinding belt 21 is retracted into the frame 1. When dead angle grinding is required, the front and rear adjusting cylinders 6 push the dead angle grinding mechanism 2 to move toward the front section of the frame 1 to leave enough space for the robot arm. At this time, the first motor 24 drives the first working abrasive belt wheel 23 to rotate, and the first working abrasive belt wheel 23 drives the dead angle grinding belt 21 and the first contact abrasive belt wheel 22 to rotate, so that the first contact abrasive belt wheel 22 with a small wheel diameter cooperates with the dead angle grinding belt 21 with a small width, and can grind the dead angles in extremely small depressions, greatly improving the processing accuracy, improving the grinding effect, and realizing full-angle grinding. After completion, the dead angle grinding mechanism 2 is pulled back into the frame 1 by the front and rear adjusting cylinders 6, thereby improving equipment utilization and space layout.

Claims

1. A multi-group abrasive belt wheel full-angle grinder, comprising a frame, at least one group of abrasive belt wheel devices arranged on the frame, the abrasive belt wheel device comprising a surface grinding mechanism and a dead angle grinding mechanism each of which is wound with a surface grinding belt and a dead angle grinding belt, the dead angle grinding mechanism being movably arranged on one side of the axial direction of the surface grinding mechanism, the dead angle grinding belt being smaller in size than the surface grinding belt, characterized in that: The dead angle grinding mechanism includes a first contact grinding belt wheel, a first working grinding belt wheel, a first driving mechanism for driving the first contact grinding belt wheel or the first working grinding belt wheel to rotate, and a front-rear adjusting mechanism for driving the dead angle grinding mechanism to slide along a frame. The dead angle grinding belt is wound on the first contact grinding belt wheel and the first working grinding belt wheel. The first contact grinding belt wheel is arranged in the forward direction of the dead angle grinding mechanism, and the wheel diameter of the first contact grinding belt wheel is smaller than the wheel diameter of the first working grinding belt wheel.

2. The multi-group abrasive belt wheel full-angle grinder according to claim 1, characterized in that: The first driving mechanism includes a first motor and an extended grinding arm arranged at the frame corresponding to the first contact grinding belt wheel. The first contact grinding belt wheel is arranged at an end of the extended grinding arm away from the first working grinding belt wheel. The conveying end of the first motor is connected to the first working grinding belt wheel, and the dead angle grinding belt and the first contact grinding belt wheel are driven to rotate through the first working grinding belt wheel.

3. The multi-group abrasive belt wheel full-angle grinder according to claim 1, characterized in that: The first driving mechanism includes a first motor, an active synchronous wheel arranged at the output end of the first motor, and a driven synchronous wheel arranged on one side of the first contact grinding belt wheel and / or the first working grinding belt wheel and rotating synchronously, a synchronous belt is wound between the driven synchronous wheel and the active synchronous wheel, the first motor is arranged between the first contact grinding belt wheel and the first working grinding belt wheel, and drives the first contact grinding belt wheel and / or the first working grinding belt wheel to rotate through the synchronous belt.

4. The multi-group abrasive belt wheel full-angle grinder according to claim 1, 2 or 3, characterized in that: The first driving mechanism also includes a first tensioning adjustment component arranged in the dead angle grinding belt, the first tensioning adjustment component includes a first tensioning arm and a first tensioning cylinder, one end of the first tensioning arm is hinged to the frame through a first hinge point, and the other end is provided with a first tensioning wheel that rotates against the dead angle grinding belt, one end of the first tensioning cylinder is hinged to the frame, and the other end is hinged to the first tensioning arm, and drives the first tensioning wheel to swing with the first hinge point as the fulcrum.

5. The multi-group abrasive belt wheel full-angle grinder according to claim 4, characterized in that: An angle adjustment component is provided at one end of the first tensioning wheel, and the angle adjustment component includes a first tensioning frame and a first connecting seat. The first tensioning wheel is rotatably arranged on the first tensioning frame, and the first connecting seat is arranged on the first tensioning arm. A first adjusting screw is provided at the first tensioning frame corresponding to the first connecting seat. The first adjusting screw passes through the first tensioning frame and is threadedly connected to the first connecting seat, and the eccentric angle of the first tensioning wheel is adjusted by rotating the first adjusting screw.

6. The multi-group abrasive belt wheel full-angle grinder according to claim 5, characterized in that: The first adjusting screw is externally sleeved with a correction spring, one end of which abuts against the first connecting seat, and the other end abuts against the first tensioning frame. A coating box for installing abrasive belt coating is provided on one side of the frame corresponding to the dead angle grinding belt.

7. The multi-group abrasive belt wheel full-angle grinder according to claim 4, characterized in that: The front-to-back adjustment mechanism includes a front-to-back adjustment cylinder arranged at one end of the frame away from the first contact grinding belt wheel, a dead angle grinding plate arranged on the frame for installing the dead angle grinding mechanism, a front-to-back sliding guide rail arranged at the dead angle grinding mechanism corresponding to the frame, and a front-to-back sliding block arranged on the dead angle grinding plate and slidingly cooperating with the front-to-back sliding guide rail. The front-to-back adjustment cylinder is arranged in parallel with the front-to-back sliding guide rail and the output end is connected to the dead angle grinding plate, and drives the dead angle grinding plate to slide forward and backward along the front-to-back sliding guide rail.

8. The multi-group abrasive belt wheel full-angle grinder according to claim 4, characterized in that: The surface grinding mechanism includes a sanding belt main beam, a second contact sanding belt wheel and a second working sanding belt wheel arranged on the sanding belt main beam, and a second motor that drives the second contact sanding belt wheel to rotate. The surface grinding sanding belt is wound around the second contact sanding belt wheel and the second working sanding belt wheel. A floating grinding assembly is provided between the sanding belt main beam and the frame. The floating grinding assembly includes floating arms arranged at both ends of the sanding belt main beam corresponding to the second motor. Bearing columns are provided at both ends of the floating arm. The floating arm is movably connected to the sanding belt main beam and the frame through the bearing columns, and the sanding belt main beam is swung in the frame through the floating arm. A floating limit block is provided at one end of the frame corresponding to the floating arm.

9. The multi-group abrasive belt wheel full-angle grinder according to claim 8, characterized in that: The surface grinding mechanism also includes a second tensioning adjustment component arranged in the surface grinding belt, the second tensioning adjustment component includes a second tensioning arm and a second tensioning cylinder arranged at an end of the belt main beam away from the second contact belt wheel, one end of the second tensioning arm is hinged to the belt main beam through a second hinge point, and the other end is provided with a second tensioning wheel that rotates against the surface grinding belt, one end of the second tensioning cylinder is hinged to the belt main beam, and the other end is hinged to the second tensioning arm, and drives the second tensioning wheel to swing with the second hinge point as the fulcrum.

10. The multi-group abrasive belt wheel full-angle grinder according to claim 9, characterized in that: A second tensioning frame is provided at one end of the second tensioning arm away from the second hinge point, and a third tensioning cylinder is provided on the second tensioning frame. The output end of the third tensioning cylinder is provided with a third tensioning frame for mounting a second tensioning wheel. The multi-group abrasive belt wheel full-angle grinder also includes a dust removal component arranged at the lower part of the surface grinding mechanism and the dead angle grinding mechanism.

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