Tensioning mechanism of polishing machine

Abstract

The utility model discloses a polishing machine tensioning mechanism which is used for tensioning a polishing belt on a polishing machine, and the polishing belt is wound around a first rotating roller and a second rotating roller of the polishing machine in the mode that the polishing belt can be driven to rotate directionally. The polishing machine tensioning mechanism comprises a first tensioning roller, a second tensioning roller and a telescopic element used for driving the first tensioning roller and the second tensioning roller to be relatively close to or away from each other, and the first tensioning roller, the second tensioning roller and the telescopic element are all installed on a polishing machine. The first tensioning roller and the second tensioning roller are located on the same horizontal plane, located on the upstream and the downstream of a polishing point position of the polishing belt correspondingly and close to the inner side of the first rotating roller and the inner side of the second rotating roller correspondingly. When the telescopic element drives the first tensioning roller and the second tensioning roller to be relatively close to or away from each other, the telescopic element can be matched with the first rotating roller and the second rotating roller to tension the polishing belt, and the polishing effect of fixed-point tensioning is better.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machine equipment, in particular to a polishing machine tensioning mechanism. Background Art

[0002] Polishing machines are generally divided into polishing disc polishing and polishing belt polishing. Polishing belts are generally used for removing oxide layers and stains on the surface of commutators of different materials of micro motors and for precision grinding and polishing.

[0003] In the polishing belt polishing technology, the tensioning mechanism generally only adjusts the entire polishing belt through a tensioning wheel or through multiple tensioning wheels on different surfaces of the polishing belt to ensure that the entire polishing belt can reach a certain tension, and the polishing effect is not ideal. Utility Model Content

[0004] The embodiment of the present application provides a polishing machine tensioning mechanism, which can not only cooperate with the first rotating roller and the second rotating roller to tension the polishing belt, but also can perform targeted tensioning at the upstream and downstream of the polishing point at the same time, which can effectively ensure the tensioning progress of the polishing point and achieve a better polishing effect.

[0005] An embodiment of the present application provides a polishing machine tensioning mechanism for tensioning a polishing belt on a polishing machine, wherein the polishing belt is wound around a first rotating roller and a second rotating roller of the polishing machine in a manner that allows it to be driven and rotated in a directional manner, and the polishing machine tensioning mechanism includes a first tensioning roller, a second tensioning roller, and a telescopic element for driving the first tensioning roller and the second tensioning roller to move relatively closer or farther away, the first tensioning roller, the second tensioning roller, and the telescopic element are all installed on the polishing machine, wherein the first tensioning roller and the second tensioning roller are located in the same horizontal plane, and are respectively located upstream and downstream of the polishing point of the polishing belt, and are respectively close to the inner sides of the first rotating roller and the second rotating roller, so that when the telescopic element drives the first tensioning roller and the second tensioning roller to move relatively closer or farther away, they can cooperate with the first rotating roller and the second rotating roller to tension the polishing belt.

[0006] In one possible implementation, the first tensioning roller and the second tensioning roller are both located on the top of the polishing belt in a manner capable of tensioning the polishing belt, and a first plane formed by a line between the bottom ends of the first tensioning roller and the second tensioning roller is close to a second plane formed by a line between the bottom ends of the first rotating roller and the second rotating roller.

[0007] In one possible implementation, the telescopic element includes a first telescopic element and a second telescopic element, the first telescopic axis of the first telescopic element is vertically connected to a first mounting frame, the first tensioning roller is rotatably mounted in the first mounting frame, the second telescopic axis of the second telescopic element is vertically connected to a second mounting frame, and the second tensioning roller is rotatably mounted in the second mounting frame.

[0008] In a possible implementation manner, both the first telescopic element and the second telescopic element are telescopic cylinders.

[0009] In a possible implementation, the polishing machine tensioning mechanism includes a protective shell, which is fixedly mounted on the polishing machine, the first telescopic element and the second telescopic element are symmetrically mounted in the protective shell, the first mounting frame and the second mounting frame are symmetrically arranged on both sides of the protective shell, the first telescopic axis and the second telescopic axis vertically penetrate the protective shell and are respectively connected to the first mounting frame and the second mounting frame.

[0010] In a possible implementation, the first mounting frame and the second mounting frame are respectively connected to a first support rod and a second support rod through a connecting block, the first support rod is located between the first tensioning roller and the first rotating roller, the second support rod is located between the second tensioning roller and the second rotating roller, and the first support rod and the second support rod are symmetrically supported at the bottom of the polishing belt to increase the contact area between the polishing belt and the first tensioning roller and the second tensioning roller, respectively.

[0011] In a possible implementation, guide rails are symmetrically arranged on both sides of the first telescopic element and the second telescopic element at the bottom of the shell cavity of the protective shell, and the extension direction of the guide rails is the same as the extension direction of the first telescopic axis and the second telescopic axis. The first mounting frame and the second mounting frame are symmetrically and vertically connected with the first guide shaft and the second guide shaft at both ends in the vertical direction close to the extension direction of the guide rails, respectively. The first guide shaft and the second guide shaft vertically penetrate the protective shell, and sliders that slide with the guide rails are arranged at the ends.

[0012] In a possible implementation, a first protective accordion cover is arranged between the first mounting frame and the protective shell, a second protective accordion cover is arranged between the second mounting frame and the protective shell, the first telescopic axis and the first guide axis and the second guide axis connected to the first mounting frame are all located in the first protective accordion cover, and the second telescopic axis and the first guide axis and the second guide axis connected to the second mounting frame are all located in the second protective accordion cover.

[0013] In a possible implementation manner, a sealing sleeve for slidingly fitting the first guide shaft and the second guide shaft is installed on the shell wall of the protective shell.

[0014] Beneficial effects: Compared with the prior art, the polishing machine tensioning mechanism provided by the present application includes a first tensioning roller and a second tensioning roller that can be driven to be relatively close to or away from each other, and the first tensioning roller and the second tensioning roller are respectively located upstream and downstream of the polishing point, which can not only cooperate with the first rotating roller and the second rotating roller to tension the polishing belt, but also can be tensioned simultaneously upstream and downstream of the polishing point in a targeted manner, which can effectively ensure the tensioning progress of the polishing point, and can also provide good strength support for the polishing belt at the polishing point, so that the polishing effect is better;

[0015] The tensioning positions of the first tensioning roller and the second tensioning roller can be conveniently adjusted by the first telescopic element and the second telescopic element, so that the tensioning mechanism of the polishing machine can be suitable for polishing products of different thicknesses and has a wide range of applications;

[0016] The protective shell can protect the first telescopic element and the second telescopic element to prevent dust, debris, etc. from affecting their working performance, thereby extending the service life of the polishing belt tensioning mechanism;

[0017] The cooperation between the slider and the guide rail can make the movement of the first mounting frame and the second mounting frame more stable, and can improve the movement accuracy of the first mounting frame and the second mounting frame;

[0018] The first support rod and the second support rod can increase the contact area between the polishing belt and the first tensioning roller and the second tensioning roller, thereby increasing the friction force of the first tensioning roller and the second tensioning roller on the polishing belt, making the rotation more stable, and further enhancing the tensioning effect and supporting strength of the polishing belt, thereby enhancing the polishing effect of the product.

[0019] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram of the tensioning mechanism of the polishing machine of the present application is shown.

[0021] Figure 2 A schematic diagram of the main structure of the tensioning mechanism of the polishing machine of the present application is shown.

[0022] Figure 3 A schematic diagram of the top view and cross-section structure of the tensioning mechanism of the polishing machine of the present application is shown. DETAILED DESCRIPTION

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0024] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0026] refer to Figures 1 to 3 The embodiment of the present application provides a polishing machine tensioning mechanism, which is used to tension a polishing belt on a polishing machine, wherein the polishing belt 10 is wound around a first rotating roller 11 and a second rotating roller 12 of the polishing machine in a manner that it can be driven and rotated in a directional manner. The polishing machine tensioning mechanism includes a first tensioning roller 20, a second tensioning roller 30, and a telescopic element for driving the first tensioning roller 20 and the second tensioning roller 30 to move relatively closer or farther away. The first tensioning roller 20, the second tensioning roller 30 and the telescopic element are all installed on the polishing machine, wherein the first tensioning roller 20 and the second tensioning roller 30 are located in the same horizontal plane, and are respectively located upstream and downstream of the polishing point 101 of the polishing belt 10, and are respectively close to the inner sides of the first rotating roller 11 and the second rotating roller 12, so that when the telescopic element drives the first tensioning roller 20 and the second tensioning roller 30 to be relatively close to or away from each other, they can cooperate with the first rotating roller 11 and the second rotating roller 12 to tension the polishing belt 10, thereby achieving fixed-point tensioning near the polishing point 101 by moving the first tensioning roller 20 and the second tensioning roller 30, and in particular, the tensioning degree of the polishing point 101 can be accurately ensured. In addition, the first tensioning roller 20 and the second tensioning roller 30 can provide additional support strength to the polishing point 101, so that the polishing effect is better.

[0027] In one embodiment, the first tensioning roller 20 and the second tensioning roller 30 are both located on the top of the polishing belt 10 in a manner capable of tensioning the polishing belt 10, and at the same time, the first plane formed by the line between the bottom ends of the first tensioning roller 20 and the second tensioning roller 30 is close to the second plane formed by the line between the bottom ends of the first rotating roller 11 and the second rotating roller 12, so that the polishing belt 10 can be tensioned by the first tensioning roller 20 and the second tensioning roller 30. Obviously, the distribution of the upper and lower polishing belts is only an example, and those skilled in the art can also think of performing polishing operations by obliquely extending polishing belts, or performing polishing operations by vertically distributed polishing belts. For this, the first tensioning roller 20 and the second tensioning roller 30 can tension the polishing belt 10 on the same side of the polishing belt 10, which is the same as the principle of polishing by the upper and lower polishing belts, and will not be described in detail here.

[0028] Further preferably, the telescopic element includes a first telescopic element 41 and a second telescopic element 42, wherein the first telescopic element 41 and the second telescopic element 42 are both telescopic cylinders, such as hydraulic cylinders, pneumatic cylinders or electric cylinders. The first telescopic shaft 411 of the first telescopic element 41 is vertically connected to a first mounting frame 412, and the first tensioning roller 20 is rotatably mounted in the first mounting frame 412. In addition, the second telescopic shaft 421 of the second telescopic element 42 is vertically connected to a second mounting frame 422, and the second tensioning roller 30 is rotatably mounted in the second mounting frame 422. Thus, the first telescopic element 41 can be used to drive the first mounting frame 412 to move in a directional manner, thereby driving the first tensioning roller 20 to move relatively close to or away from the second tensioning roller 30. Similarly, the second telescopic element 42 can also be used to drive the second mounting frame 422 to move in a directional manner. The first tensioning roller 20 and the second tensioning roller 30 can be moved, thereby achieving a movable fixed-point tensioning effect, so that the polishing position of the polishing belt 10 can be flexibly adjusted. It should be noted that the first telescopic element 41 and the second telescopic element 42 can operate synchronously, so that the first tensioning roller 20 and the second tensioning roller 30 are relatively close to or away from each other at the same or different speeds. The first telescopic element 41 and the second telescopic element 42 can also operate asynchronously, or only the first telescopic element 41 can operate alone or only the second telescopic element 42 can operate alone. Since the moving direction is determined, the relative approach or distance between the first tensioning roller 20 and the second tensioning roller 30 can also be achieved.

[0029] In one embodiment, the polishing machine tensioning mechanism includes a protective shell 50. The protective shell 50 is fixedly mounted on the polishing machine. The first telescopic element 41 and the second telescopic element 42 are symmetrically mounted in the protective shell 50, and the first mounting frame 412 and the second mounting frame 422 are symmetrically arranged on both sides of the protective shell 50, and the first telescopic shaft 411 and the second telescopic shaft 421 vertically penetrate the protective shell 50 and are respectively connected to the first mounting frame 412 and the second mounting frame 422, so that the first telescopic element 41 and the second telescopic element 42 can be protected by the protective shell 50 to prevent external flying dust, debris, etc. from affecting the normal operation of the first telescopic element 41 and the second telescopic element 42, thereby improving the service life of the first telescopic element 41 and the second telescopic element 42 and ensuring work efficiency.

[0030] Further preferably, the first mounting frame 412 and the second mounting frame 422 are respectively connected with a first support rod 431 and a second support rod 432 through a connecting block 43. The first support rod 431 is located between the first tensioning roller 20 and the first rotating roller 11, while the second support rod 432 is located between the second tensioning roller 30 and the second rotating roller 12, and the first support rod 431 and the second support rod 432 are symmetrically supported and arranged at the bottom of the polishing belt 10 to increase the contact area between the polishing belt 110 and the first tensioning roller 20 and the second tensioning roller 30, respectively. In the process of the first rotating roller 11 and the second rotating roller 12 driving the polishing belt 10 to rotate, the first tensioning roller 20 and the second tensioning roller 30 tension the polishing belt 10 upstream and downstream of the polishing point 101 respectively, and at the same time, the first support rod 431 and the second support rod 432 support the polishing belt 10 at the bottom of the polishing belt 10 in a rotatable manner, so that the polishing belt 10 can be more attached to the surface of the first tensioning roller 20 and the second tensioning roller 30, thereby increasing the friction force of the first tensioning roller 20 and the second tensioning roller 30 on the polishing belt 10 by increasing the contact area, making the rotation of the polishing belt 10 more stable, and can further enhance the tensioning effect and support strength of the polishing belt 10, thereby enhancing the polishing effect of the product.

[0031] Further preferably, guide rails 51 are symmetrically arranged on both sides of the first telescopic element 41 and the second telescopic element 42 at the bottom of the shell cavity of the protective shell 50, and the extension direction of the guide rails 51 is the same as the extension direction of the first telescopic axis 411 and the second telescopic axis 421. In addition, the first mounting frame 412 and the second mounting frame 422 are symmetrically and vertically connected with the first guide axis 413 and the second guide axis 423 at both ends in the vertical direction close to the extension direction of the guide rail 51, respectively. At the same time, the first guide axis 413 and the second guide axis 423 vertically penetrate the protective shell 50, and a slider 414 slidably matched with the guide rail 51 is arranged at the end, so that the accuracy of the moving direction of the first mounting frame 412 and the second mounting frame 422 and the stability of the movement can be ensured through the cooperation of the slider 414 and the guide rail 51, thereby ensuring the movement stability and tensioning accuracy of the first tensioning roller 20 and the second tensioning roller 30, thereby ensuring the polishing quality and improving the polishing effect.

[0032] In one embodiment, a first protective accordion cover 61 is arranged between the first mounting frame 412 and the protective shell 50, and a second protective accordion cover 62 is arranged between the second mounting frame 422 and the protective shell 50, and the first telescopic shaft 411 and the first guide shaft 413 and the second guide shaft 423 connected to the first mounting frame 412 are all located in the first protective accordion cover 61, so that the first telescopic shaft 411 and the corresponding first guide shaft 413 and the second guide shaft 423 can be protected by the first protective accordion cover 61; in addition, the second telescopic shaft 421 and the first guide shaft 413 and the second guide shaft 423 connected to the second mounting frame 422 are all located in the second protective accordion cover 62, so that the second telescopic shaft 421 and the corresponding first guide shaft 413 and the second guide shaft 423 can be protected by the second protective accordion cover 62.

[0033] In one embodiment, the protective shell 50 is provided with a sealing sleeve 52 on the shell wall for slidingly fitting the first guide shaft 413 and the second guide shaft 423, so as to ensure the protective sealing performance of the protective shell 50 on the basis of guiding the first guide shaft 413 and the second guide shaft 423, thereby ensuring the protective effect.

[0034] It should be noted that the terms "first, second" in the present application are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0035] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A polishing machine tensioning mechanism, used for tensioning a polishing belt on a polishing machine, wherein the polishing belt is wound around a first rotating roller and a second rotating roller of the polishing machine in a manner that the polishing belt can be driven and rotated in a directional manner, characterized in that: The polishing machine tensioning mechanism includes a first tensioning roller, a second tensioning roller and a telescopic element for driving the first tensioning roller and the second tensioning roller to move relatively closer or farther away, the first tensioning roller, the second tensioning roller and the telescopic element are all installed on the polishing machine, wherein the first tensioning roller and the second tensioning roller are located in the same horizontal plane, and are respectively located upstream and downstream of the polishing point of the polishing belt, and are respectively close to the inner side of the first rotating roller and the second rotating roller, so that when the telescopic element drives the first tensioning roller and the second tensioning roller to move relatively closer or farther away, they can cooperate with the first rotating roller and the second rotating roller to tension the polishing belt.

2. The polishing machine tensioning mechanism according to claim 1, characterized in that: The first tensioning roller and the second tensioning roller are both located on the top of the polishing belt in a manner capable of tensioning the polishing belt, and a first plane formed by a line between the bottom ends of the first tensioning roller and the second tensioning roller is close to a second plane formed by a line between the bottom ends of the first rotating roller and the second rotating roller.

3. The polishing machine tensioning mechanism according to claim 2, characterized in that: The telescopic element includes a first telescopic element and a second telescopic element, wherein the first telescopic axis of the first telescopic element is vertically connected to a first mounting frame, the first tensioning roller is rotatably mounted in the first mounting frame, the second telescopic axis of the second telescopic element is vertically connected to a second mounting frame, and the second tensioning roller is rotatably mounted in the second mounting frame.

4. The polishing machine tensioning mechanism according to claim 3, characterized in that: The first telescopic element and the second telescopic element are both telescopic cylinders.

5. The polishing machine tensioning mechanism according to claim 3, characterized in that: The polishing machine tensioning mechanism includes a protective shell, which is fixedly installed on the polishing machine, the first telescopic element and the second telescopic element are symmetrically installed in the protective shell, the first mounting frame and the second mounting frame are symmetrically arranged on both sides of the protective shell, the first telescopic axis and the second telescopic axis vertically penetrate the protective shell and are respectively connected to the first mounting frame and the second mounting frame.

6. The polishing machine tensioning mechanism according to claim 5, characterized in that: The first mounting frame and the second mounting frame are respectively connected to a first support rod and a second support rod through a connecting block, the first support rod is located between the first tensioning roller and the first rotating roller, the second support rod is located between the second tensioning roller and the second rotating roller, and the first support rod and the second support rod are symmetrically supported at the bottom of the polishing belt to increase the contact area between the polishing belt and the first tensioning roller and the second tensioning roller, respectively.

7. The polishing machine tensioning mechanism according to claim 5, characterized in that: The bottom of the shell cavity of the protective shell is symmetrically provided with guide rails on both sides of the first telescopic element and the second telescopic element, and the extension direction of the guide rails is the same as the extension direction of the first telescopic axis and the second telescopic axis. The first mounting frame and the second mounting frame are symmetrically and vertically connected with the first guide shaft and the second guide shaft at both ends in the vertical direction close to the extension direction of the guide rails, respectively. The first guide shaft and the second guide shaft vertically penetrate the protective shell, and sliders that slide with the guide rails are provided at the ends.

8. The polishing machine tensioning mechanism according to claim 7, characterized in that: A first protective accordion cover is arranged between the first mounting frame and the protective shell, a second protective accordion cover is arranged between the second mounting frame and the protective shell, the first telescopic axis and the first guide axis and the second guide axis connected to the first mounting frame are all located in the first protective accordion cover, and the second telescopic axis and the first guide axis and the second guide axis connected to the second mounting frame are all located in the second protective accordion cover.

9. The polishing machine tensioning mechanism according to claim 7, characterized in that: The protective shell is provided with a sealing sleeve on the shell wall for slidingly matching the first guide shaft and the second guide shaft.

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