Controllable constant force floating unit and belt sander

Abstract

The utility model relates to a controllable constant force floating unit and abrasive belt machine belong to the field of polishing equipment, the utility model discloses a fixed frame, its structural characteristics lie in: still include the floating structure of installing on the fixed frame, the floating structure includes floating cylinder, floating swing arm and polishing wheel, the cylinder barrel of floating cylinder installs on the fixed frame, the piston rod of floating cylinder and the one end of floating swing arm contact, the polishing wheel installs on the other end of floating swing arm, the middle part rotation of floating swing arm installs on the fixed frame, the cylinder barrel of floating cylinder is equipped with the limiting frame for the limiting of one end of floating swing arm, the fixed frame includes support, support and branch, the support is fixed with support, the branch is fixed with support, the cylinder barrel of floating cylinder installs on the support, the middle part rotation of floating swing arm installs on the branch.

Description

Technical Field

[0001] This utility model relates to a controllable constant force floating unit 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 constant force unidirectional adjustment floating unit and its working method are disclosed in the patent document with application number CN202311175141.2. The floating unit in the above-mentioned prior art requires manual adjustment when adjusting the angle of the floating arm, and it is also not equipped with a limit structure, which can easily lead to overcutting during the surface grinding of the workpiece. 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 constant force floating unit and belt sander with a reasonable structural design for grinding the outer wall of a workpiece.

[0005] The technical solution adopted by this utility model to solve the above problems is: the controllable constant force floating unit includes a fixed frame, and its structural feature is that it also includes a floating structure installed on the fixed frame. The floating structure includes a floating cylinder, a floating swing arm and a grinding wheel. The cylinder of the floating cylinder is installed on the fixed frame. The piston rod of the floating cylinder is in contact with one end of the floating swing arm. The grinding wheel is installed on the other end of the floating swing arm. The middle part of the floating swing arm is rotatably installed on the fixed frame.

[0006] Furthermore, a limiting frame for limiting one end of the floating swing arm is installed on the cylinder of the floating cylinder.

[0007] Furthermore, the fixed frame includes a support, a bracket, and a support arm. The bracket is fixed to the support, the support arm is fixed to the bracket, the cylinder of the floating cylinder is mounted on the support, and the middle part of the floating swing arm is rotatably mounted on the support arm.

[0008] Furthermore, it also includes a limiting structure for preventing overcutting during workpiece grinding, the limiting structure being mounted on the floating swing arm.

[0009] Furthermore, the limiting structure includes a limiting frame, a limiting shaft, and an adjusting seat. The adjusting seat is mounted on the floating swing arm, and the limiting frame is mounted on the adjusting seat via the limiting shaft.

[0010] Furthermore, the limiting structure also includes an adjusting rod and an abutting block. The abutting block is mounted on the adjusting seat, and the adjusting rod is mounted on the limiting frame and abuts against the abutting block.

[0011] Furthermore, a limit rod is provided on the limit frame.

[0012] Furthermore, another technical objective of this utility model is to provide a belt sander.

[0013] The above-mentioned technical objective of this utility model is achieved through the following technical solution.

[0014] A belt sander includes a frame, a drive wheel, a tension wheel, a guide wheel, a sanding belt, and a controllable constant force floating unit. The drive wheel, tension wheel, guide wheel, and controllable constant force floating unit are all mounted on the frame. The drive wheel, tension wheel, guide wheel, and controllable constant force floating unit are driven by the sanding belt, and the sanding belt can be directed in different directions depending on the installation position of the guide wheel.

[0015] Compared with the prior art, the present invention has the following advantages: the controllable constant force floating unit controls the angle of the floating arm through a floating cylinder to provide a constant support force when grinding the workpiece. The magnitude of the force applied by the floating cylinder can be controlled. The setting limit structure can limit the workpiece during grinding to avoid overcutting. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the controllable constant force floating unit according to an embodiment of the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of the controllable constant force floating unit according to an embodiment of the present invention. Figure 2 .

[0018] Figure 3 This is a schematic cross-sectional view of the controllable constant force floating unit according to an embodiment of the present invention. Figure 1 .

[0019] Figure 4 This is a schematic cross-sectional view of the controllable constant force floating unit according to an embodiment of the present invention. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the controllable constant force floating unit in use according to an embodiment of the present invention.

[0021] In the diagram: Support 1, Bracket 2, Support arm 3,

[0022] 4. Floating cylinder; 5. Floating swing arm; 6. Grinding wheel; 7. Limit frame.

[0023] Limiting bracket 8, limiting shaft 9, adjusting rod 10, adjusting seat 11, abutment block 12, limiting rod 13.

[0024] Frame 14, drive wheel 15, tension wheel 16, guide wheel 17, sanding belt 18. Detailed Implementation

[0025] 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.

[0026] Example

[0027] 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.

[0028] The controllable constant force floating unit in this embodiment includes a fixed frame, a floating structure mounted on the fixed frame, and a limiting structure for preventing overcutting during workpiece grinding.

[0029] The floating structure in this embodiment includes a floating cylinder 4, a floating swing arm 5, and a grinding wheel 6. The cylinder barrel of the floating cylinder 4 is mounted on a fixed frame, the piston rod of the floating cylinder 4 is in contact with one end of the floating swing arm 5, the grinding wheel 6 is mounted on the other end of the floating swing arm 5, the middle part of the floating swing arm 5 is rotatably mounted on the fixed frame, and a limiting frame 7 for limiting one end of the floating swing arm 5 is mounted on the cylinder barrel of the floating cylinder 4.

[0030] The fixed frame in this embodiment includes a support 1, a bracket 2 and a support arm 3. The bracket 2 is fixed to the support 1, the support arm 3 is fixed to the bracket 2, the cylinder of the floating cylinder 4 is mounted on the support 1, and the middle part of the floating swing arm 5 is rotatably mounted on the support arm 3.

[0031] In this embodiment, the limiting structure is installed on the floating swing arm 5. The limiting structure includes a limiting frame 8, a limiting shaft 9, an adjusting rod 10, an adjusting seat 11, and an abutment block 12. The adjusting seat 11 is installed on the floating swing arm 5, the limiting frame 8 is installed on the adjusting seat 11 via the limiting shaft 9, the abutment block 12 is installed on the adjusting seat 11, the adjusting rod 10 is installed on the limiting frame 8 and abuts against the abutment block 12, and a limiting rod 13 is provided on the limiting frame 8.

[0032] The belt sander in this embodiment includes a frame 14, a drive wheel 15, a tension wheel 16, a guide wheel 17, a sanding belt 18, and a controllable constant force floating unit. The drive wheel 15, tension wheel 16, guide wheel 17, and controllable constant force floating unit are all mounted on the frame 14. The drive wheel 15, tension wheel 16, guide wheel 17, and controllable constant force floating unit are driven by the sanding belt 18, and the sanding belt 18 can be directed in different directions depending on the installation position of the guide wheel 17.

[0033] Specifically, when the belt sander is working, the drive wheel 15 drives the sanding belt 18 to pass through the tension wheel 16, guide wheel 17, and controllable constant force floating unit. When sanding a workpiece, the robot holds the workpiece and places it on the sanding wheel 6, which is in contact with the sanding belt 18. When the workpiece is in contact with the sanding belt 18, the sanding wheel 6 can provide support. The floating arm 5 is controlled to swing by the floating cylinder 4, which ensures that the sanding wheel 6 can provide a constant support force when the workpiece is in contact with the sanding belt 18. "Controllable" means that the force applied by the floating cylinder 4 can be controlled. The diameter of the sanding wheel 6 is usually 100-380mm. For example, this controllable constant force floating unit can be used when sanding the outer wall of the rear swingarm of a motorcycle.

[0034] The limiting frame 8 can limit the workpiece when it comes into contact with the sanding belt 18, preventing overcutting. Since the adjusting rod 10 abuts against the abutting block 12, the angle of the limiting frame 8 can be adjusted by turning the adjusting rod 10, thereby achieving fine adjustment of the position of the limiting frame 8 relative to the grinding wheel 6. During grinding, the limiting frame 8 can limit the workpiece to prevent overcutting.

[0035] 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 constant force floating unit comprising a fixed frame, characterized in that: It also includes a floating structure mounted on a fixed frame. The floating structure includes a floating cylinder (4), a floating swing arm (5), and a grinding wheel (6). The cylinder of the floating cylinder (4) is mounted on the fixed frame. The piston rod of the floating cylinder (4) is in contact with one end of the floating swing arm (5). The grinding wheel (6) is mounted on the other end of the floating swing arm (5). The middle part of the floating swing arm (5) is rotatably mounted on the fixed frame.

2. The controllable constant force floatation unit of claim 1, wherein: The floating cylinder (4) is equipped with a limiting frame (7) for limiting one end of the floating swing arm (5).

3. The controllable constant force floatation unit of claim 1, wherein: The fixed frame includes a support (1), a bracket (2) and a support arm (3). The bracket (2) is fixed to the support (1), the support arm (3) is fixed to the bracket (2), the cylinder of the floating cylinder (4) is mounted on the support (1), and the middle part of the floating swing arm (5) is rotatably mounted on the support arm (3).

4. The controllable constant force floatation unit of claim 1, wherein: It also includes a limiting structure for preventing overcutting during workpiece grinding, the limiting structure being mounted on the floating swing arm (5).

5. The controllable constant force floatation unit of claim 4, wherein: The limiting structure includes a limiting frame (8), a limiting shaft (9), and an adjusting seat (11). The adjusting seat (11) is mounted on the floating swing arm (5), and the limiting frame (8) is mounted on the adjusting seat (11) via the limiting shaft (9).

6. The controllable constant force floatation unit of claim 4, wherein: The limiting structure also includes an adjusting rod (10) and an abutting block (12). The abutting block (12) is installed on the adjusting seat (11), and the adjusting rod (10) is installed on the limiting frame (8) and abuts against the abutting block (12).

7. The controllable constant force floatation unit of claim 5, wherein: The limiting frame (8) is provided with a limiting rod (13).

8. A belt sander comprising a frame (14), a drive wheel (15), a tension wheel (16), a guide wheel (17) and a sanding belt (18), the drive wheel (15), the tension wheel (16) and the guide wheel (17) being mounted on the frame (14), characterized in that: It also includes a controllable constant force floating unit as described in any one of claims 1-7, which is mounted on the frame (14), and the drive wheel (15), tension wheel (16), guide wheel (17) and controllable constant force floating unit are driven by a sand belt (18).

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