Automatic polishing device for plastic parts

Abstract

This utility model discloses an automatic sanding device for plastic parts, relating to the field of plastic parts processing. It includes an ABB robot and a worktable. A quick-release disc is mounted on the front end of the ABB robot for securing the plastic part. The worktable is positioned on one side of the ABB robot, and a belt sander is mounted above it. The belt sander includes a motor, a lifting frame, and a slide. The motor is fixed above the worktable, and a driving grinding wheel is mounted on the motor's output shaft. The slide is positioned on one side of the motor, and the lifting frame is mounted above the slide. A driven grinding wheel is rotatably mounted on one side of the lifting frame. A sanding belt is fitted onto both the driven and driving grinding wheels. This utility model automatically sands plastic parts by mounting them on the quick-release disc at the front end of the ABB robot, then driving the quick-release disc to move onto sandpaper. The sandpaper then sands the plastic part, resulting in higher efficiency, faster speed, and higher sanding quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts processing, and in particular to an automatic grinding device for plastic parts. Background Technology

[0002] With the widespread application of plastic products in various industries, the post-processing of plastic parts is becoming increasingly important. Grinding, as an important step in plastic parts processing, is mainly used to remove burrs, defects, and other uneven parts from the plastic surface to improve the surface finish and assembly accuracy. The quality of grinding directly affects the appearance and performance of the plastic parts, as well as the smooth progress of subsequent processes.

[0003] The polishing process for plastic parts typically includes two stages: coarse polishing and fine polishing. Coarse polishing is mainly used to remove larger imperfections and burrs, while fine polishing further smooths the surface and improves its gloss. Traditional polishing processes generally employ manual polishing and semi-automatic polishing structures. While manual polishing offers a degree of flexibility, it is inefficient and prone to causing operator fatigue. Although semi-automatic polishing structures improve efficiency to some extent, their operational limitations mean that existing semi-automatic polishing devices typically cannot achieve continuous and efficient polishing operations. The polishing speed is slow, limited by the operator's skill level and operating frequency. Furthermore, because semi-automatic polishing structures rely on the operator's experience and control, the polishing quality is uneven, failing to meet consistency requirements and easily resulting in over-polishing or under-polishing. In addition, the polishing components of existing polishing devices are often complex in design, inconvenient to disassemble and replace, causing difficulties in equipment maintenance and cleaning, and increasing production downtime.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an automatic plastic parts polishing device. This device mounts the plastic parts on a quick-release disc at the front end of an ABB robot, and then the ABB robot drives the quick-release disc to move onto sandpaper. The plastic parts are then polished by the sandpaper. The entire polishing process is automated. This structure makes the polishing of plastic parts more efficient, faster, and of higher quality.

[0006] To achieve the above objectives, this utility model provides an automatic plastic parts grinding device, including an ABB robot and a worktable. The ABB robot is equipped with a quick-release disc at its front end, which is used to fix the plastic parts. The worktable is located on one side of the ABB robot, and a belt sander is installed above the worktable.

[0007] The belt sander includes a motor, a lifting frame, and a slide table. The motor is fixed above the worktable, and a driving grinding wheel is mounted on the output shaft of the motor. The slide table is located on one side of the motor, and the lifting frame is mounted above the slide table. A driven grinding wheel is rotatably mounted on one side of the lifting frame, and a sanding belt is sleeved on the driven grinding wheel and the driving grinding wheel.

[0008] In one embodiment of this utility model, a mounting frame is installed above the slide table. The mounting frame has an inverted L-shaped structure. A first cylinder is installed below the horizontal end of the mounting frame. A sliding groove is formed above the horizontal end of the mounting frame. The bottom of the lifting frame is movably inserted into the sliding groove. The piston rod of the first cylinder passes through the sliding groove and is connected to the bottom of the lifting frame. Based on this, when it is necessary to replace the sanding belt, the lifting frame can be moved down directly by controlling the first cylinder to reduce the distance between the active grinding wheel and the driven grinding wheel. At this time, the sanding belt is in a relaxed state and can be directly removed from between the active grinding wheel and the driven grinding wheel. The operation is convenient and labor-saving. Moreover, this movable mounting structure allows the tension of the sanding belt to be adjusted, thereby making it suitable for sanding different plastic parts and improving the applicability of the device.

[0009] In one embodiment of this utility model, a wing plate is provided on one side of the mounting frame. There are two wing plates in total. The two wing plates are symmetrically installed on both sides below the horizontal end of the mounting frame to provide auxiliary support for the mounting frame, thereby improving the stability of the mounting frame.

[0010] In one embodiment of this utility model, a guide plate is installed at the bottom of the slide table, and a base plate is provided on the upper surface of the worktable below the slide table. A guide groove is formed on the upper surface of the base plate along its length. The guide plate is slidably installed in the guide groove. A second cylinder is installed on one side of the base plate. The piston rod of the second cylinder passes through the guide groove and is connected to one end of the guide plate. Based on this, when the second cylinder runs, it can push the guide plate to slide in the guide groove, thereby changing the movement of the slide table and the lifting frame located above the slide table along the direction of the guide groove. Combined with the lifting of the lifting frame, the horizontal and vertical positions of the driven grinding wheel can be changed, thereby changing the angle of the grinding belt. This makes the device suitable for grinding different plastic parts and improves the applicability of the device.

[0011] In one embodiment of this utility model, a limiting plate is also provided at the bottom of the slide table, and a limiting groove is formed on the upper surface of the base plate along its length. The limiting plate is slidably installed in the limiting groove, and the cross-section of the limiting plate is inverted T-shaped. Based on this, the relative limiting of the limiting plate and the limiting groove makes the slide table more stable when moving.

[0012] In one embodiment of this utility model, a sander is also installed above the workbench. The sander includes a support, a sanding board, and sandpaper. The support is fixed to the upper surface of the workbench, and the sandpaper is fixedly installed above the support near the ABB robot via the sanding board. Based on this, the ABB robot can control the plastic parts to move to the sandpaper position for sanding via a quick-release disc, thereby making the sanding structure of the device more diverse and improving the sanding effect of the device.

[0013] In one embodiment of this utility model, a polishing base is also included. The bottom of the ABB robot is mounted on the polishing base, and the worktable is mounted on the polishing base via a frame located on one side of the ABB robot.

[0014] Compared with the prior art, the automatic plastic part polishing device according to the present invention installs the plastic part on the quick-release plate at the front end of the ABB robot, and then the ABB robot drives the quick-release plate to move onto the sandpaper to polish the plastic part. The entire polishing process is automated. This structure makes the polishing of plastic parts more efficient, faster, and of higher quality.

[0015] The driven grinding wheel for mounting the sandpaper in this device can be height-adjusted by raising and lowering the lifting frame. When replacement is needed, the lifting frame can be lowered via the first cylinder, reducing the distance between the driving and driven grinding wheels. This loosens the sanding belt, allowing it to be easily removed from between the driving and driven wheels. This convenient and labor-saving operation, along with the adjustable mounting structure, allows for adjustment of the sanding belt tension, making it suitable for sanding different plastic parts and enhancing the device's versatility. Furthermore, the horizontal position of the driving grinding wheel can be changed by moving the slide table via the second cylinder, adjusting the horizontal positions of the lifting frame and driven grinding wheels, and consequently changing the angle of the sanding belt. Therefore, this device can meet the needs of sanding various plastic parts, further enhancing its applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic plastic parts polishing device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of an automatic plastic parts grinding device according to one embodiment of the present utility model from another perspective.

[0018] Figure 3 This is a schematic diagram of the belt sander structure in an automatic plastic parts grinding device according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the lifting frame installation structure in a belt sander of an automatic plastic parts grinding device according to an embodiment of the present invention.

[0020] Reference numerals: 1. Grinding base; 2. ABB robot; 20. Quick-release disc; 3. Sandpaper machine; 30. Support; 31. Sandpaper board; 32. Sanding sandpaper; 4. Stand; 5. Belt sander; 50. Motor; 500. Driving grinding wheel; 51. Lifting frame; 510. Driven grinding wheel; 52. Grinding belt; 53. Slide table; 530. Wing plate; 531. Mounting frame; 5310. Slide groove; 532. Guide plate; 533. Limiting plate; 54. Base plate; 540. Limiting groove; 541. Guide groove; 55. First cylinder; 56. Second cylinder; 6. Worktable. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0022] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0023] like Figure 1 - Figure 4 As shown, an automatic plastic parts grinding device according to a preferred embodiment of the present invention includes an ABB robot 2 and a worktable 6. A quick-release disc 20 is installed at the front end of the ABB robot 2 for fixing plastic parts. The worktable 6 is located on one side of the ABB robot 2, and a belt sander 5 is installed above the worktable 6.

[0024] The belt sander 5 includes a motor 50, a lifting frame 51, and a slide table 53. The motor 50 is fixed above the worktable 6. A driving grinding wheel 500 is installed on the output shaft of the motor 50. The slide table 53 is located on one side of the motor 50. The lifting frame 51 is installed above the slide table 53. A driven grinding wheel 510 is rotatably installed on one side of the lifting frame 51. A sanding belt 52 is sleeved on the driven grinding wheel 510 and the driving grinding wheel 500.

[0025] The working principle is as follows: First, the plastic part to be polished is installed on the quick-release disc 20. The movement of the plastic part is controlled by the ABB robot 2. The motor 50 is turned on. When the motor 50 is running, the polishing belt 52 is driven by the active grinding wheel 500 to rotate on the active grinding wheel 500 and the driven grinding wheel 510. At this time, the ABB robot 2 moves the plastic part between the driven grinding wheel 510 and the active grinding wheel 500 through the quick-release disc 20. The polishing belt 52 between the driven grinding wheel 510 and the active grinding wheel 500 polishes the plastic part.

[0026] In summary, this device automatically polishes plastic parts by mounting the plastic parts onto the quick-release disc 20 at the front end of the ABB robot 2, and then driving the quick-release disc 20 to move onto the sandpaper 52. The sandpaper 52 polishes the plastic parts, making the entire polishing process more efficient, faster, and of higher quality.

[0027] Specifically, such as Figure 3 - Figure 4 As shown, since the sanding belt 52 is a consumable part, it needs to be replaced frequently to ensure the sanding effect. In this embodiment, a mounting bracket 531 is installed above the slide table 53. The mounting bracket 531 adopts an inverted L-shaped structure. A first cylinder 55 is installed below the horizontal end of the mounting bracket 531. A sliding groove 5310 is opened above the horizontal end of the mounting bracket 531. The bottom of the lifting frame 51 is movably inserted into the sliding groove 5310. The piston rod of the first cylinder 55 passes through the sliding groove 5310 and is connected to the bottom of the lifting frame 51. Based on this, when the sanding belt 52 needs to be replaced, the lifting frame 51 can be moved down directly by controlling the first cylinder 55, so that the gap between the active grinding wheel 500 and the driven grinding wheel 510 is reduced. At this time, the sanding belt 52 is in a relaxed state and can be directly removed from between the active grinding wheel 500 and the driven grinding wheel 510. The operation is convenient and labor-saving. In addition, this movable installation structure allows the tension of the sanding belt 52 to be adjusted, which makes it easy to adapt to the sanding of different plastic parts and improves the applicability of the device.

[0028] Specifically, such as Figure 3 - Figure 4 As shown, in order to increase the stability of the mounting frame 531, a wing plate 530 is provided on one side of the mounting frame 531. There are two wing plates 530 in total. The two wing plates 530 are symmetrically installed on both sides below the horizontal end of the mounting frame 531 to provide auxiliary support for the mounting frame 531, thereby improving the stability of the mounting frame 531.

[0029] Specifically, such as Figure 3 - Figure 4As shown, in order to facilitate the angle control of the abrasive belt 52 and make it applicable to the grinding of different plastic parts, in this embodiment, a guide plate 532 is installed at the bottom of the slide table 53, and a base plate 54 is provided on the upper surface of the worktable 6 below the slide table 53. A guide groove 541 is opened along the length direction on the upper surface of the base plate 54. The guide plate 532 is slidably installed in the guide groove 541. A second cylinder 56 is installed on one side of the base plate 54. The piston rod of the second cylinder 56 passes through the guide groove 541 and is connected to one end of the guide plate 532. Based on this, when the second cylinder 56 runs, it can push the guide plate 532 to slide in the guide groove 541, thereby changing the movement of the slide table 53 and the lifting frame 51 located above the slide table 53 along the direction of the guide groove 541. With the lifting of the lifting frame 51, the horizontal and vertical positions of the driven grinding wheel 510 can be changed, thereby changing the angle of the abrasive belt 52, making the device applicable to the grinding of different plastic parts and improving the applicability of the device.

[0030] Specifically, such as Figure 3 - Figure 4 As shown, in order to ensure the stable movement of the slide table 53, in this embodiment, a limiting plate 533 is also provided at the bottom of the slide table 53, and a limiting groove 540 is formed along the length of the upper surface of the base plate 54. The limiting plate 533 is slidably installed in the limiting groove 540. The cross section of the limiting plate 533 is inverted T-shaped. Based on this, the relative limiting of the limiting plate 533 and the limiting groove 540 makes the slide table 53 more stable when moving.

[0031] Specifically, such as Figure 1 - Figure 2 As shown, in order to improve the sanding performance of the device, in this embodiment, a sander 3 is also installed above the workbench 6. The sander 3 includes a support 30, a sanding board 31, and sandpaper 32. The support 30 is fixed on the upper surface of the workbench 6, and the sandpaper 32 is fixedly installed on the side of the support 30 near the ABB robot 2 through the sanding board 31. Based on this, the ABB robot 2 can control the plastic parts to move to the position of the sandpaper 32 for sanding through the quick-release disc 20, thereby making the sanding structure of the device more diverse and improving the sanding effect of the device.

[0032] Specifically, such as Figure 1 - Figure 3 As shown, in order to install the device, this embodiment also includes a grinding base 1, the bottom of the ABB robot 2 is mounted on the grinding base 1, and the worktable 6 is mounted on the grinding base 1 via a frame 4, which is located on one side of the ABB robot 2.

[0033] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An automatic grinding device for plastic parts, characterized in that, It includes: ABB robot (2), with a quick-release plate (20) installed at its front end, the quick-release plate (20) being used to secure plastic parts; A workbench (6) is located on one side of the ABB robot (2), and a belt sander (5) is installed above the workbench (6). The belt sander (5) includes a motor (50), a lifting frame (51), and a slide (53). The motor (50) is fixed above the worktable (6). An active grinding wheel (500) is installed on the output shaft of the motor (50). The slide (53) is located on one side of the motor (50). The lifting frame (51) is installed above the slide (53). A driven grinding wheel (510) is rotatably installed on one side of the lifting frame (51). A sanding belt (52) is sleeved on the driven grinding wheel (510) and the active grinding wheel (500).

2. The automatic polishing device for plastic parts according to claim 1, wherein, A mounting bracket (531) is installed above the slide (53). The mounting bracket (531) has an inverted L-shaped structure. A first cylinder (55) is installed below the horizontal end of the mounting bracket (531). A slide groove (5310) is opened above the horizontal end of the mounting bracket (531). The bottom of the lifting frame (51) is movably inserted into the slide groove (5310). The piston rod of the first cylinder (55) is inserted into the slide groove (5310) and connected to the bottom of the lifting frame (51).

3. The automatic polishing device for plastic parts according to claim 2, characterized in that, The mounting bracket (531) has a wing plate (530) on one side. There are two wing plates (530). The two wing plates (530) are symmetrically installed on both sides below the horizontal end of the mounting bracket (531) to provide auxiliary support for the mounting bracket (531).

4. The automatic polishing device for plastic parts according to claim 2, wherein, A guide plate (532) is installed at the bottom of the slide (53). A base plate (54) is provided on the upper surface of the worktable (6) below the slide (53). A guide groove (541) is provided on the upper surface of the base plate (54) along the length direction. The guide plate (532) is slidably installed in the guide groove (541). A second cylinder (56) is installed on one side of the base plate (54). The piston rod of the second cylinder (56) is inserted into the guide groove (541) and connected to one end of the guide plate (532).

5. The automatic polishing device for plastic parts according to claim 4, wherein, The bottom of the slide (53) is also provided with a limiting plate (533), and the upper surface of the base plate (54) is provided with a limiting groove (540) along the length. The limiting plate (533) is slidably installed in the limiting groove (540), and the cross section of the limiting plate (533) is inverted T-shaped.

6. The automatic grinding device for plastic parts according to claim 1, characterized in that, A sander (3) is also installed above the workbench (6). The sander (3) includes a support (30), a sanding board (31), and sandpaper (32). The support (30) is fixed to the upper surface of the workbench (6), and the sandpaper (32) is fixedly installed above the support (30) on the side close to the ABB robot (2) by the sanding board (31).

7. The automatic grinding device for plastic parts according to claim 1, characterized in that, It also includes a polishing base (1), the bottom of the ABB robot (2) is mounted on the polishing base (1), and the worktable (6) is mounted on the polishing base (1) via a frame (4), the frame (4) being located on one side of the ABB robot (2).

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