A controllable floating mechanism for a belt sander and a belt sander

Abstract

The utility model relates to a controllable floating mechanism and abrasive belt machine for abrasive belt machine belongs to the field of polishing equipment, the utility model discloses support and support, the support is fixed with support, its structural characteristics lie in: still include connecting arm, floating arm, floating cylinder, polishing wheel and connecting shaft, the polishing wheel is installed in one end of floating arm, the other end of floating arm is fixed with one end of connecting arm, the connecting arm passes through connecting shaft and is installed in one end of support, the cylinder tube of floating cylinder is fixed in the other end of support, the piston rod of floating cylinder and the other end of connecting arm contact, still include the limiting rod for to connecting arm spacing, the limiting hole is seted up on the support, the limiting rod and limiting hole are through, one end of limiting rod is fixed with connecting arm, the other end of limiting rod sets up the limiting stage, the guide wheel is installed on the support, the limiting hole is the waist type hole.

Description

Technical Field

[0001] This utility model relates to a controllable floating mechanism for a belt sander and a belt sander, belonging to the field of grinding equipment. Background Technology

[0002] After the workpiece is processed, it needs to be polished. When the robot holds the workpiece to polish it, the force of the robot end clamping the workpiece and pressing it on the sanding belt is manually adjusted and controlled. Each person's adjustment method is different, that is, the contact force is different, which can easily lead to overcutting of the workpiece. Therefore, overcutting can affect the surface quality of the grinding.

[0003] In view of this, a floating swing arm and its working method are disclosed in patent document with application number CN202510039589.4. The diameter of the support wheel 36 in the above-mentioned prior art is usually 100-380mm, which is suitable for grinding the inner wall of the workpiece in products with large internal space. For example, the floating swing arm can be used when grinding the inner wall of the U-shaped groove at the bottom of the rear swing fork of a motorcycle. However, since the U-shaped groove space at the top of the rear swing fork of a motorcycle is small, the floating swing arm cannot be used to grind it. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a controllable floating mechanism and belt sander that is reasonably designed, suitable for narrow spaces, and can be used to grind the inner wall of workpieces.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: the controllable floating mechanism for a belt sander includes a support and a bracket, the bracket being fixed to the support. Its structural features are: it also includes a connecting arm, a floating arm, a floating cylinder, a grinding wheel, and a connecting shaft. The grinding wheel is installed at one end of the floating arm, the other end of the floating arm is fixed to one end of the connecting arm, the connecting arm is installed at one end of the bracket through the connecting shaft, the cylinder of the floating cylinder is fixed at the other end of the bracket, and the piston rod of the floating cylinder is in contact with the other end of the connecting arm.

[0006] Furthermore, it also includes a limiting rod for limiting the position of the connecting arm.

[0007] Furthermore, the bracket has a limiting hole, the limiting rod passes through the limiting hole, one end of the limiting rod is fixed to the connecting arm, and the other end of the limiting rod is provided with a limiting platform.

[0008] Furthermore, guide wheels are installed on the support.

[0009] Furthermore, the limiting hole is an oblong hole.

[0010] Furthermore, another technical objective of this utility model is to provide a belt sander.

[0011] The above-mentioned technical objective of this utility model is achieved through the following technical solution.

[0012] A belt sander includes a frame, a drive wheel, a tension wheel, a sanding belt, and a controllable floating mechanism. The drive wheel, tension wheel, and controllable floating mechanism are all mounted on the frame and are driven by the sanding belt.

[0013] Furthermore, the sand belt passes around the guide wheel.

[0014] Compared with the prior art, this utility model has the following advantages: when using a belt sander to grind workpieces, a constant supporting force can be provided to the grinding wheel by tightening the connecting arm with a floating cylinder. The supporting force can be kept constant by controlling the magnitude of the force applied by the floating cylinder to avoid overcutting. The connecting arm can be limited by the set limit rod. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the controllable floating mechanism according to an embodiment of the present invention. Figure 1 .

[0016] Figure 2 This is a three-dimensional structural diagram of the controllable floating mechanism according to an embodiment of the present invention. Figure 2 .

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the controllable floating mechanism according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the controllable floating mechanism in use according to an embodiment of the present invention. Figure 1 .

[0019] Figure 5 This is a schematic diagram of the controllable floating mechanism in use according to an embodiment of the present invention. Figure 2 .

[0020] In the diagram: support 1, bracket 2, connecting arm 3, floating arm 4, floating cylinder 5, grinding wheel 6, limit rod 7, limit platform 8, limit hole 9, guide wheel 10, connecting shaft 11, frame 12, drive wheel 13, tension wheel 14, sanding belt 15. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0022] Example

[0023] See Figures 1 to 5 As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0024] The controllable floating mechanism for the belt sander in this embodiment includes a support 1, a bracket 2, a connecting arm 3, a floating arm 4, a floating cylinder 5, a grinding wheel 6, a connecting shaft 11, and a limiting rod 7 for limiting the connecting arm 3. The bracket 2 is fixed to the support 1, and a guide wheel 10 is installed on the support 1.

[0025] In this embodiment, the grinding wheel 6 is installed at one end of the floating arm 4, and the other end of the floating arm 4 is fixed to one end of the connecting arm 3. The connecting arm 3 is installed at one end of the bracket 2 through the connecting shaft 11. The cylinder of the floating cylinder 5 is fixed at the other end of the bracket 2, and the piston rod of the floating cylinder 5 is in contact with the other end of the connecting arm 3.

[0026] In this embodiment, the bracket 2 has a limiting hole 9, the limiting rod 7 passes through the limiting hole 9, one end of the limiting rod 7 is fixed to the connecting arm 3, and the other end of the limiting rod 7 is provided with a limiting platform 8. The limiting hole 9 is an oblong hole.

[0027] A belt sander includes a frame 12, a drive wheel 13, a tension wheel 14, a sanding belt 15, and a controllable floating mechanism. The drive wheel 13, the tension wheel 14, and the controllable floating mechanism are all mounted on the frame 12. The drive wheel 13, the tension wheel 14, and the controllable floating mechanism are driven by the sanding belt 15, which passes around the guide wheel 10.

[0028] Specifically, when the belt sander is working, the drive wheel 13 drives the sanding belt 15 to pass through the tension wheel 14, guide wheel 10, and grinding wheel 6. When grinding a workpiece, the robot holds the workpiece and places it on the grinding wheel 6, which is in contact with the sanding belt 15. When the workpiece is in contact with the sanding belt 15, the grinding wheel 6 can provide support. The floating cylinder 5 controls the swing of the connecting arm 3, which ensures that the grinding wheel 6 can provide a constant support force when the workpiece is in contact with the sanding belt 15. "Controllable" means that the force applied by the floating cylinder 5 can be controlled. The diameter of the grinding wheel 6 is usually 50mm. This controllable floating mechanism can be used when grinding the inner wall of the U-shaped groove on the upper part of the rear horizontal fork of a motorcycle.

[0029] When the connecting arm 3 is pushed upward by the floating cylinder 5 to rotate along the connecting shaft 11, the connecting arm 3 can be limited by the set limit rod 7 to prevent the connecting arm 3 from swinging too much. That is, the connecting arm 3 can be pulled upward by the limit rod 7, and the limit platform 8 set on the limit rod 7 will contact the bracket 2, thereby playing a limiting role.

[0030] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model are included within the protection scope of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A controllable floating mechanism for a belt sander, comprising a support (1) and a bracket (2), wherein the bracket (2) is fixed to the support (1), characterized in that: It also includes a connecting arm (3), a floating arm (4), a floating cylinder (5), a grinding wheel (6), and a connecting shaft (11). The grinding wheel (6) is installed at one end of the floating arm (4), and the other end of the floating arm (4) is fixed to one end of the connecting arm (3). The connecting arm (3) is installed at one end of the bracket (2) through the connecting shaft (11). The cylinder of the floating cylinder (5) is fixed at the other end of the bracket (2), and the piston rod of the floating cylinder (5) is in contact with the other end of the connecting arm (3).

2. The controllable floating mechanism for a belt sander according to claim 1, characterized in that: It also includes a limiting rod (7) for limiting the connecting arm (3).

3. The controllable floating mechanism for a belt sander according to claim 2, characterized in that: The bracket (2) has a limiting hole (9) and the limiting rod (7) passes through the limiting hole (9). One end of the limiting rod (7) is fixed to the connecting arm (3) and the other end of the limiting rod (7) is provided with a limiting platform (8).

4. The controllable floating mechanism for a belt sander according to claim 1, characterized in that: The support (1) is equipped with a guide wheel (10).

5. The controllable floating mechanism for a belt sander according to claim 3, characterized in that: The limiting hole (9) is a waist-shaped hole.

6. A belt sander, comprising a frame (12), a drive wheel (13), a tension wheel (14), and a sanding belt (15), wherein the drive wheel (13) and the tension wheel (14) are both mounted on the frame (12), characterized in that: It also includes a controllable floating mechanism as described in any one of claims 1-5, the controllable floating mechanism being mounted on the frame (12), and the drive wheel (13), tension wheel (14), and controllable floating mechanism being driven by a sand belt (15).

7. The belt sander according to claim 6, characterized in that: The sand belt (15) passes around the guide wheel (10).

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