Double-head abrasive belt machine for workpiece polishing processing

Abstract

The utility model belongs to abrasive belt machine technical field, specifically is a kind of double-end abrasive belt machine for workpiece polishing, including base, tensioning assembly includes lifting groove, lifting groove is set on the base side wall, lifting groove is equipped with lifting block, first rotating shaft is rotatably installed on the lifting block, fixed sleeve is equipped with tensioning wheel on the first rotating shaft, lifting frame is installed on the bottom side of lifting block, sleeve rod is installed on the lifting frame, multiple counterweights are placed on the lifting frame, by the counterweight is hung on sleeve rod, counterweight is pressed lifting frame vertically downward under the action of gravity, lifting frame drives lifting block vertically downward, lifting block drives tensioning wheel vertically downward, tensioning wheel is pressed to abrasive belt, the tensioning of abrasive belt is realized, the counterweight of counterweight and the tensioning force of abrasive belt are adapted, this structure is simple and failure rate is extremely low, when adjusting, by increasing or decreasing counterweight, tension can be changed, it is beneficial to improve the convenience of tensioning degree adjustment.

Description

Technical Field

[0001] This utility model relates to the field of belt sander technology, specifically a double-head belt sander for workpiece grinding. Background Technology

[0002] Grinding is a surface treatment process that uses friction media to physically process the surface of a workpiece in order to improve surface roughness, remove burrs and stains, and enhance coating adhesion. A belt sander is required when grinding workpieces.

[0003] A Chinese patent with authorization announcement number CN 220806782 U discloses a belt sander, including a frame on which a belt sander assembly, a polishing assembly, and a pneumatic grinding head are mounted. Two sets of belt sanders are arranged opposite each other. A first motor for driving the belt sanders is located inside the frame; the first motor is a double-headed motor. A chuck is installed at the output end of the pneumatic grinding head, and sandpaper is adhered to the chuck. By setting four sanding components on the frame, one machine can perform sanding, grinding, and polishing of workpieces, resulting in high processing efficiency. No parts need to be replaced, and no additional polishing equipment needs to be purchased. It is convenient to use and has low cost. Since the two sets of belt sanders are used alternately, and one motor drives both sets, space is saved, and it is convenient to install other components.

[0004] In the process of grinding workpieces, existing belt sanders require the use of tensioning components to adjust the tension of the belt in order to ensure stable rotation of the belt. However, the structure is relatively complex, resulting in poor convenience of tension adjustment. Therefore, a double-head belt sander for workpiece grinding is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a double-head belt sander for workpiece grinding.

[0006] The technical solution adopted by this utility model to solve its technical problem is a double-head belt sander for workpiece grinding, including a base, on which a PLC controller is installed. Two sets of grinding structures are symmetrically installed on the base, and a tensioning assembly is installed inside the grinding structure. The tensioning assembly includes a lifting groove, which is opened on the side wall of the base. A lifting block is assembled in the lifting groove, and a first rotating shaft is rotatably installed on the lifting block. A tensioning wheel is fixedly sleeved on the first rotating shaft. A lifting frame is installed on the bottom side of the lifting block, and a sleeve rod is installed on the lifting frame. Multiple accessories are placed on the lifting frame. The counterweight has a central hole and is hung on the sleeve rod through the hole. A baffle is installed on the side wall of the lifting frame. By hanging the counterweight on the sleeve rod, the counterweight presses the lifting frame vertically downward under the action of gravity. The lifting frame drives the lifting block to move vertically downward, and the lifting block drives the tensioning wheel to move vertically downward. The tensioning wheel presses on the sanding belt, thus achieving tensioning of the sanding belt. The counterweight and the tension of the sanding belt are matched. This structure is simple and has an extremely low failure rate. The tension can be changed by adding or removing the counterweight, which helps to improve the convenience of tension adjustment.

[0007] Preferably, a fixed seat is installed on the base, a driven shaft is rotatably installed on the fixed seat, a driven wheel is fixedly sleeved on the driven shaft, a fixed box is installed on the base, a dual-axis output motor is installed in the fixed box via a base, a drive shaft is installed on the two output shafts of the dual-axis output motor, a drive wheel is fixedly sleeved on the drive shaft, an abrasive belt is sleeved on the drive wheel, driven wheel, and tension wheel, the surfaces of the drive wheel, driven wheel, and tension wheel are covered with anti-slip rubber, a protective cover is installed on the base, the protective cover is located above the drive wheel and driven wheel, the dual-axis output motor drives the two drive wheels to rotate synchronously, realizing the drive of the two sets of grinding structures, realizing the stable rotation of the abrasive belt on the drive wheel, driven wheel, and tension wheel, the drive wheel is the workpiece grinding point, by installing coarse and fine abrasive belts on the two sets of grinding structures respectively, the operator can perform continuous coarse and fine grinding of the workpiece, which is beneficial to improving the efficiency of grinding.

[0008] The advantages of this utility model are: 1. This utility model involves hanging a counterweight on a sleeve rod. Under the action of gravity, the counterweight presses the lifting frame to move vertically downward. The lifting frame drives the lifting block to move vertically downward, and the lifting block drives the tensioning wheel to move vertically downward. The tensioning wheel presses the sanding belt, thus achieving tensioning of the sanding belt. The counterweight and the tension of the sanding belt are matched. This structure is simple and has an extremely low failure rate. During adjustment, the tension can be changed by adding or removing the counterweight, which helps to improve the convenience of tension adjustment.

[0009] 2. This utility model uses a dual-axis output motor to drive two drive wheels to rotate synchronously, thereby driving two sets of grinding structures. This enables the sanding belt to rotate stably on the drive wheel, driven wheel, and tension wheel. The drive wheel is where the workpiece is ground. By installing coarse and fine sanding belts on the two sets of grinding structures respectively, operators can perform continuous coarse and fine grinding on the workpiece, which helps to improve the efficiency of grinding. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Fig. 1 This is a first-person perspective 3D structural diagram; Fig. 2 This is a schematic diagram of the three-dimensional structure of the lifting trough. Fig. 3 This is a schematic diagram of the three-dimensional structure at the counterweight. Fig. 4 This is a schematic diagram of the three-dimensional structure at the sand belt. Fig. 5 This is a schematic diagram of the three-dimensional structure of the drive wheel.

[0012] In the diagram: 1. Base; 2. PLC controller; 3. Lifting groove; 301. Lifting block; 302. First rotating shaft; 303. Tensioning wheel; 304. Lifting frame; 305. Sleeve rod; 306. Counterweight block; 307. Baffle; 4. Fixed seat; 401. Driven rotating shaft; 402. Driven wheel; 5. Fixed box; 501. Dual-axis output motor; 502. Driven rotating shaft; 503. Driven wheel; 6. Sanding belt; 7. Protective cover. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0014] Please see Figs. 1-3As shown, a double-head belt sander for workpiece grinding includes a base 1, on which a PLC controller 2 is mounted. Two grinding structures are symmetrically mounted on the base 1, and tensioning components are installed within the grinding structures. The tensioning components include lifting grooves 3 and 301. A first rotating shaft 302 is rotatably mounted on the lifting block 301, and a tensioning wheel 303 is fixedly sleeved on the first rotating shaft 302. A lifting frame 304 is mounted on the bottom side of the lifting block 301. A sleeve rod 305 is installed on the upper part of the lifting frame 304, and multiple counterweights 306 are placed on the lifting frame 304. Each counterweight 306 has a central hole, through which it is stacked on the sleeve rod 305. A baffle 307 is installed on the side wall of the lifting frame 304. During operation, existing belt sanders require a tensioning assembly to adjust the tension of the belt 6 to ensure stable rotation during workpiece grinding. However, this assembly is complex and inconvenient, resulting in poor tension adjustment. This is achieved by modifying the belt 6... During installation, the sanding belt 6 is fitted onto the drive wheel 503, driven wheel 402, and tension wheel 303. At this time, the lifting block 301 on the tension wheel 303 can slide within the lifting groove 3. Then, the counterweight 306 is hung on the sleeve rod 305. Under the action of gravity, the counterweight 306 presses the lifting frame 304 to move vertically downward. The lifting frame 304 drives the lifting block 301 to move vertically downward, and the lifting block 301 drives the tension wheel 303 to move vertically downward. The tension wheel 303 presses down on the sanding belt 6, thus achieving the sanding of the sanding belt. The tension of belt 6 is such that the counterweight of counterweight block 306 is matched with the tension of belt 6. The lifting groove 3 can limit the lateral swing of the tensioning component and ensure that the tensioning wheel 303 moves stably in the vertical direction. The baffle 307 on the lifting frame 304 can prevent the dust generated by grinding from falling onto the lifting frame 304. This structure is simple and has an extremely low failure rate. It has no complex parts such as electronic components or pneumatic systems and can maintain stable tension. The tension can be changed by adding or removing counterweights during adjustment. It is intuitive and convenient and helps to improve the convenience of tension adjustment.

[0015] Please see Figs. 4-5As shown, a fixed seat 4 is installed on the base 1, and a driven shaft 401 is rotatably mounted on the fixed seat 4. A driven wheel 402 is fixedly sleeved on the driven shaft 401. A fixed box 5 is installed on the base 1, and a dual-axis output motor 501 is installed in the fixed box 5 via a base. A drive shaft 502 is installed on the two output shafts of the dual-axis output motor 501, and a drive wheel 503 is fixedly sleeved on the drive shaft 502. A sanding belt 6 is sleeved on the drive wheel 503, the driven wheel 402, and the tension wheel 303. The surface is covered with anti-slip rubber, and a protective cover 7 is installed on the base 1. The protective cover 7 is located above the drive wheel 503 and the driven wheel 402. During operation, the existing belt sander has difficulty connecting the workpieces during the grinding process, resulting in poor grinding efficiency. The dual-axis output motor 501 is controlled by the PLC controller 2. The dual-axis output motor 501 is model Y2-132S-4, which drives the two drive shafts 502 to rotate synchronously. The two drive shafts 502 drive the two drive wheels 503 to rotate synchronously, realizing the drive of the two sets of grinding structures. When the grinding structure is in operation, the drive wheel 503 rotates. Since the surfaces of the drive wheel 503, driven wheel 402, and tension wheel 303 are covered with anti-slip rubber, the drive wheel 503 drives the sanding belt 6 to rotate under the action of friction. The sanding belt 6 drives the driven wheel 402 and tension wheel 303 to rotate, thus realizing the stable rotation of the sanding belt 6 on the drive wheel 503, driven wheel 402, and tension wheel 303. During this process, the tension wheel 303 controls the tension of the sanding belt 6 to ensure that the sanding belt 6 can stick tightly to the surfaces of the drive wheel 503, driven wheel 402, and tension wheel 303. The workpiece is polished at the drive wheel 503. By installing coarse abrasive belt 6 and fine abrasive belt 6 on the two sets of polishing structures respectively, the coarse abrasive belt 6 is used to remove larger defects and burrs to create a smooth surface, while the fine abrasive belt 6 is used for fine polishing and grinding to remove smaller defects and scratches, making the surface smoother. Operators can perform continuous coarse and fine polishing on the workpiece, which helps to improve the efficiency of polishing.

[0016] Working principle: In the existing belt sander, during the grinding process of the workpiece, in order to ensure the stable rotation of the sanding belt 6, a tensioning assembly is needed to adjust the tension of the sanding belt 6. However, the structure is relatively complex and the convenience is poor, resulting in poor ease of tension adjustment. During the installation of the sanding belt 6, the sanding belt 6 is fitted onto the driving wheel 503, the driven wheel 402, and the tensioning wheel 303. At this time, the lifting block 301 on the tensioning wheel 303 can slide within the lifting groove 3. Then, the counterweight 306 is hung on the sleeve rod 305. Under the action of gravity, the counterweight 306 presses the lifting frame 304 to move vertically downward. The lifting frame 304 drives the lifting block 301 to move vertically downward. The lifting block 301 drives the tensioning wheel 303 to move vertically downwards, pressing the sanding belt 6 and achieving tensioning of the sanding belt 6. The counterweight 306 is matched with the tension of the sanding belt 6. The lifting groove 3 can limit the lateral swing of the tensioning component and ensure that the tensioning wheel 303 moves stably in the vertical direction. The baffle 307 on the lifting frame 304 can prevent the dust generated by grinding from falling onto the lifting frame 304. This structure is simple and has an extremely low failure rate. It has no complex parts such as electronic components or pneumatic systems, and can maintain stable tension. The tension can be changed by adding or removing the counterweight, which is intuitive and convenient, and helps to improve the convenience of tension adjustment. Existing belt sanders have limitations in the process of... During the grinding process, it is difficult to connect and grind the workpieces, resulting in poor grinding efficiency. The PLC controller 2 controls the operation of the dual-axis output motor 501 (model Y2-132S-4), which drives two active shafts 502 to rotate synchronously. These two active shafts 502, in turn, drive two active wheels 503 to rotate synchronously, thus driving the two grinding structures. When the grinding structure is in operation, the rotation of the active wheels 503, along with the anti-slip rubber coating on the surfaces of the active wheels 503, driven wheels 402, and tension wheels 303, causes friction, which in turn drives the sanding belt 6 to rotate. The sanding belt 6 then drives the driven wheels 402 and tension wheels 303. The rotation enables the sanding belt 6 to rotate stably on the driving wheel 503, driven wheel 402, and tension wheel 303. During this process, the tension wheel 303 controls the tension of the sanding belt 6 to ensure that the sanding belt 6 can adhere tightly to the surfaces of the driving wheel 503, driven wheel 402, and tension wheel 303. The driving wheel 503 is the workpiece grinding area. By installing coarse sanding belt 6 and fine sanding belt 6 on two sets of grinding structures respectively, the coarse sanding belt 6 is used to remove larger imperfections and burrs to create a smooth surface, while the fine sanding belt 6 is used for fine polishing and grinding, which can remove smaller imperfections and scratches to make the surface smoother. Operators can perform continuous coarse and fine grinding on the workpiece, which helps to improve the efficiency of grinding.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A double-head belt sander for workpiece grinding, characterized in that: Includes a base (1), on which a PLC controller (2) is installed, and two sets of grinding structures are symmetrically installed on the base (1), with tensioning components installed inside the grinding structures; The tensioning assembly includes a lifting groove (3), and the lifting groove (3) is provided on the side wall of the base (1). A lifting block (301) is assembled in the lifting groove (3). A first rotating shaft (302) is rotatably installed on the lifting block (301). A tensioning wheel (303) is fixedly sleeved on the first rotating shaft (302). A lifting frame (304) is installed on the bottom side of the lifting block (301). A sleeve rod (305) is installed on the lifting frame (304). Multiple counterweights (306) are placed on the lifting frame (304). A sleeve hole is provided in the middle of the counterweight (306). The counterweights (306) are stacked on the sleeve rod (305) through the sleeve hole. A baffle (307) is installed on the side wall of the lifting frame (304).

2. The double-head belt sander for workpiece grinding according to claim 1, characterized in that: A fixed seat (4) is installed on the base (1), and a driven shaft (401) is rotatably installed on the fixed seat (4). A driven wheel (402) is fixedly sleeved on the driven shaft (401).

3. The double-head belt sander for workpiece grinding according to claim 1, characterized in that: A fixed box (5) is installed on the base (1), and a dual-axis output motor (501) is installed in the fixed box (5) through a base.

4. The double-head belt sander for workpiece grinding according to claim 3, characterized in that: The dual-axis output motor (501) has two output shafts on which a drive shaft (502) is mounted, and a drive wheel (503) is fixedly sleeved on the drive shaft (502).

5. A double-head belt sander for workpiece grinding according to claim 4, characterized in that: The driving wheel (503), driven wheel (402), and tension wheel (303) are all fitted with a sanding belt (6), and the surfaces of the driving wheel (503), driven wheel (402), and tension wheel (303) are covered with anti-slip rubber.

6. A double-head belt sander for workpiece grinding according to claim 1, characterized in that: A protective cover (7) is installed on the base (1), and the protective cover (7) is located above the driving wheel (503) and the driven wheel (402).

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