Abrasive belt polishing and grinding machine

Abstract

The abrasive belt polishing and grinding machine comprises a machine shell and two base plates arranged in the machine shell at intervals in the vertical direction, two supporting plates corresponding to the base plates are installed on the inner wall of one side of the machine shell, and a rotating assembly is installed on the surface of the side, close to the machine shell, of each supporting plate; a rotating shaft of the rotating assembly penetrates through the supporting plate and is sleeved with a driving gear, a driven gear is rotatably installed on the surface of the other side of the supporting plate, a rotating disc is installed on the side, opposite to the supporting plate, of the driven gear, and a round blocking disc is installed on the end face of the end, away from the rotating disc, of the base plate. And a circular through hole matched with the circular baffle disc is formed in the machine shell. The special-shaped surface of a workpiece can be polished through rotation of the abrasive belt under the condition that the posture of the workpiece is not changed, the machining efficiency and quality are improved, sweeps generated in the polishing process can be effectively shielded through the machine shell and the baffle disc, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to a sand belt polishing machine and belongs to the field of electronic product processing. Background Art

[0002] Polishing machines are also called grinders and are often used for mechanical grinding, polishing and waxing. At present, when using polishing machines to grind the surface of special-shaped parts, they usually use a robot to clamp the workpiece and drive the workpiece to continuously change its posture for grinding. However, changing the posture of the robot can easily cause the position of the clamped part to shift, and it also requires high costs, resulting in low processing efficiency and quality. In addition, the waste chips generated by grinding can easily damage the equipment and reduce its service life. Summary of the invention

[0003] The purpose of the present invention is to provide a belt polisher, which can not only polish the special-shaped surface of a workpiece without changing the posture of the workpiece through the rotation of the sand belt, thereby improving the processing efficiency and quality, but also effectively shield the waste chips generated during the polishing process through the casing and the baffle, thereby extending the service life of the equipment.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a belt polishing machine for workpiece processing, comprising: a casing and two base plates arranged in the casing at intervals in the vertical direction, a motor is installed on the surface of each side of each base plate, a driving wheel, a first driven wheel, a second driven wheel, and a third driven wheel are arranged in sequence in a clockwise direction on the other side of the base plate, the driving wheel connected to the output shaft of the motor and the first driven wheel, the second driven wheel, and the third driven wheel are connected through a belt transmission, two support plates corresponding to the base plates are installed on the inner wall of one side of the casing, a rotating assembly is installed on the surface of each support plate close to the side of the casing, the rotating shaft of the rotating assembly passes through the support plate and is fitted with a driving gear, a driven gear meshing with the driving gear is rotatably installed on the surface of the other side of the support plate, the driven gear is installed with a turntable on the side opposite to the support plate, and the base plate is installed on the turntable; The driving wheel and the first driven wheel are each rotatably mounted on a base plate and arranged close to the turntable. One end of a mounting cross bar is connected to the base plate, and the other end of the mounting cross bar extends horizontally to the outside of the other side of the casing and is installed with a mounting bracket. The two ends of the mounting bracket extending to both sides of the mounting cross bar are respectively rotatably mounted with a second driven wheel and a third driven wheel. The workpiece is in extrusion contact with a sanding belt located between the second driven wheel and the third driven wheel and located outside the casing. A circular baffle is installed on the end surface of the base plate away from the turntable, and a circular through hole matching the circular baffle is opened on the casing. The circular baffle embedded in the circular through hole is flush with the side wall of the casing and the outer circumferential surface of the circular baffle is rotatably matched with the inner wall of the circular through hole.

[0005] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, the circular baffle is provided with a through hole for the sanding belt and the mounting cross bar to pass through.

[0006] 2. In the above scheme, a cylinder is installed on the mounting cross bar and located outside the casing, the piston portion of the cylinder is set toward the sanding belt, and a support wheel is rotatably mounted on the piston portion. When the piston portion of the cylinder is in an extended state, the support wheel in compression contact with the sanding belt pushes the sanding belt located between the second driven wheel and the third driven wheel away from the substrate.

[0007] 3. In the above solution, the diameter of the supporting wheel is much smaller than the diameter of each driven wheel.

[0008] 4. In the above solution, the support wheel is mounted on the piston portion of the cylinder through a mounting seat.

[0009] 5. In the above scheme, the rotating assembly includes a reducer and a handwheel, and the driving gear is installed on the output shaft of the reducer.

[0010] 6. In the above solution, the rotating assembly includes a reducer and a servo motor.

[0011] 7. In the above solution, the outer diameter of the driven gear is larger than the outer diameter of the driving gear.

[0012] 8. In the above scheme, the ratio of the outer diameter of the driving gear to the outer diameter of the driven gear is 1:3~8.

[0013] 9. In the above solution, the motor is a servo motor.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The belt polishing machine of the present invention has two support plates corresponding to the base plate installed on the inner wall of one side of the casing, a rotating assembly is installed on the surface of each support plate close to one side of the casing, the rotating shaft of the rotating assembly passes through the support plate and is fitted with a driving gear, a driven gear meshing with the driving gear is rotatably installed on the surface of the other side of the support plate, the driven gear is installed with a turntable on the side opposite to the support plate, the base plate is installed on the turntable, the driving wheel and the first driven wheel are rotatably installed on the base plate and are arranged close to the turntable, one end of a mounting cross bar is connected to the base plate, the other end of the mounting cross bar extends horizontally to the outside of the other side of the casing and is installed with a mounting bracket, and the mounting brackets extending to both sides of the mounting cross bar The second driven wheel and the third driven wheel are rotatably mounted at both ends of the mounting bracket, respectively, the workpiece is in squeeze contact with the sanding belt located between the second driven wheel and the third driven wheel and located on the outside of the casing, a circular baffle is installed on the end face of the substrate away from the turntable, a circular through hole matching the circular baffle is provided on the casing, the circular baffle embedded in the circular through hole is flush with the side wall of the casing, and the outer circumferential surface of the circular baffle is rotatably matched with the inner wall of the circular through hole, which can realize the grinding of the special-shaped surface of the workpiece without changing the posture of the workpiece through the rotation of the sanding belt, thereby improving the processing efficiency and quality, and effectively shielding the waste chips generated during the grinding process through the casing and the baffle, thereby extending the service life of the equipment.

[0015] 2. The abrasive belt polisher of the present invention further has a cylinder installed on the cross bar and located outside the casing, the piston portion of the cylinder is arranged toward the abrasive belt, and a supporting wheel is rotatably installed on the piston portion. When the piston portion of the cylinder is in an extended state, the supporting wheel in compression contact with the abrasive belt pushes the abrasive belt between the second driven wheel and the third driven wheel away from the substrate. Through the cooperation of the supporting wheel and the abrasive belt, precise grinding of small-sized arc surfaces on the workpiece can be achieved, thereby meeting a variety of grinding needs and improving the efficiency of the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the abrasive belt polishing machine of the present invention; Attached Figure 2 For attachment Figure 1 A magnified schematic diagram of the local structure in FIG. Attached Figure 3 The partial structure of the belt polishing machine of the present invention is shown in FIG. Figure 1 ; Attached Figure 4 The partial structure of the belt polishing machine of the present invention is shown in FIG. Figure 2 ; Attached Figure 5 For attachment Figure 4 Schematic diagram of the cross section along BB; Attached Figure 6The partial structure of the belt polishing machine of the present invention is shown in FIG. Figure 3 ; Attached Figure 7 It is a schematic diagram of the working state of the support wheel of the belt polisher of the present invention; Attached Figure 8 It is a schematic diagram of the belt polishing machine of the present invention in a state of rotating 90°.

[0017] In the above drawings: 100, workpiece; 1, substrate; 2, motor; 3, driving wheel; 4, first driven wheel; 5, second driven wheel; 6, third driven wheel; 7, sanding belt; 8, support plate; 9, rotating assembly; 91, rotating shaft; 92, reducer; 93, handwheel; 10, driving gear; 11, driven gear; 12, turntable; 13, right-angle plate; 14, support ring; 151, mounting cross bar; 152, mounting bracket; 16, circular baffle; 17, circular through hole; 18, cylinder; 181, piston part; 19, support wheel; 20, mounting seat; 21, casing. Implementation

[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0019] Embodiment 1: A belt polishing machine for processing a workpiece 100, comprising: a housing 21 and two base plates 1 arranged in the housing 21 at intervals in the vertical direction, a motor 2 is mounted on the surface of one side of each base plate 1, and a driving wheel 3, a first driven wheel 4, a second driven wheel 5, and a third driven wheel 6 are arranged in sequence along the clockwise direction on the other side of the base plate 1, and the driving wheel 3 connected to the output shaft of the motor 2 and the first driven wheel 4, the second driven wheel 5, and the third driven wheel 6 are connected through a belt 7. Next, two support plates 8 corresponding to the base plate 1 are installed on the inner wall of one side of the housing 21, and a rotating assembly 9 is installed on the surface of each support plate 8 close to the housing 21. The rotating shaft 91 of the rotating assembly 9 passes through the support plate 8 and is fitted with a driving gear 10. A driven gear 11 meshing with the driving gear 10 is rotatably installed on the surface of the other side of the support plate 8. The driven gear 11 is installed with a rotating disk 12 on the side opposite to the support plate 8, and the base plate 1 is installed on the rotating disk 12; The driving wheel 3 and the first driven wheel 4 are each rotatably mounted on the base plate 1 and arranged close to the turntable 12. One end of a mounting cross bar 151 is connected to the base plate 1. The other end of the mounting cross bar 151 extends horizontally to the outside of the other side of the casing 21 and is installed with a mounting bracket 152. The two ends of the mounting bracket 152 extending to both sides of the mounting cross bar 151 are rotatably mounted with the second driven wheel 5 and the third driven wheel 6 respectively. The workpiece 100 is in extrusion contact with the sanding belt 7 located between the second driven wheel 5 and the third driven wheel 6 and located on the outside of the casing 21. A circular baffle 16 is installed on the end surface of the base plate 1 away from the turntable 12. A circular through hole 17 cooperating with the circular baffle 16 is opened on the casing 21. The circular baffle 16 embedded in the circular through hole 17 is flush with the side wall of the casing 21 and the outer circumferential surface of the circular baffle 16 is rotatably matched with the inner wall of the circular through hole 17.

[0020] The circular baffle 16 is provided with a through hole for the sanding belt 7 and the installation cross bar 151 to pass through.

[0021] A cylinder 18 is installed on the mounting cross bar 151 and outside the housing 21. The piston portion 181 of the cylinder 18 is arranged toward the abrasive belt 7, and a supporting wheel 19 is rotatably installed on the piston portion 181. When the piston portion 181 of the cylinder 18 is in an extended state, the supporting wheel 19 in compression contact with the abrasive belt 7 pushes the abrasive belt 7 between the second driven wheel 5 and the third driven wheel 6 away from the substrate 1. When the surface to be polished on the workpiece is a small-sized arc surface, the cylinder drives the supporting wheel to move toward the abrasive belt and pushes the abrasive belt outward, thereby obtaining a small-sized grinding wheel surface covered by the abrasive belt, so as to facilitate the polishing of the small-sized arc surface on the workpiece.

[0022] The diameter of the supporting wheel 19 is much smaller than the diameter of each driven wheel.

[0023] The supporting wheel 19 is mounted on the piston portion 181 of the cylinder 18 via a mounting seat 20 .

[0024] The rotating assembly 9 includes a reducer 92 and a hand wheel 93 , and the driving gear 10 is mounted on the output shaft of the reducer 92 .

[0025] The outer diameter of the driven gear 11 is greater than the outer diameter of the driving gear 10 .

[0026] The ratio of the outer diameter of the driving gear 10 to the outer diameter of the driven gear 11 is 1:4.

[0027] The motor 2 is a servo motor.

[0028] Embodiment 2: A belt polishing machine, used for processing a workpiece 100, comprises: a housing 21 and two base plates 1 arranged in the housing 21 at intervals in the vertical direction, each of the base plates 1 having a motor 2 mounted on its surface on one side, and a driving wheel 3, a first driven wheel 4, a second driven wheel 5, and a third driven wheel 6 arranged in sequence along the clockwise direction on the other side of the base plate 1, the driving wheel 3 connected to the output shaft of the motor 2 and the first driven wheel 4, the second driven wheel 5, and the third driven wheel 6 are connected via a belt 7. Next, two support plates 8 corresponding to the base plate 1 are installed on the inner wall of one side of the housing 21, and a rotating assembly 9 is installed on the surface of each support plate 8 close to the housing 21. The rotating shaft 91 of the rotating assembly 9 passes through the support plate 8 and is fitted with a driving gear 10. A driven gear 11 meshing with the driving gear 10 is rotatably installed on the surface of the other side of the support plate 8. The driven gear 11 is installed with a rotating disk 12 on the side opposite to the support plate 8, and the base plate 1 is installed on the rotating disk 12; The driving wheel 3 and the first driven wheel 4 are rotatably mounted on the base plate 1 and arranged close to the turntable 12. One end of a mounting cross bar 151 is connected to the base plate 1. The other end of the mounting cross bar 151 extends horizontally to the outside of the other side of the casing 21 and is mounted with a mounting bracket 152. The two ends of the mounting bracket 152 extending to both sides of the mounting cross bar 151 are rotatably mounted with the second driven wheel 5 and the third driven wheel 6 respectively. The workpiece 100 is in extrusion contact with the sanding belt 7 located between the second driven wheel 5 and the third driven wheel 6 and located outside the casing 21. A circular baffle 16 is mounted on the end surface of the base plate 1 away from the turntable 12. A circular through hole 17 cooperating with the circular baffle 16 is opened on the casing 21. The circular baffle 16 embedded in the circular through hole 17 is flush with the side wall of the casing 21 and the outer circumferential surface of the circular baffle 16 is rotatably matched with the inner wall of the circular through hole 17. Used in conjunction with a robotic arm, the robotic arm clamps the workpiece to be processed so that the surface of the workpiece to be processed that needs to be polished is pressed into contact with the abrasive belt, and the surface of the workpiece is polished by the abrasive belt; When a workpiece has multiple special-shaped surfaces that need to be polished, the abrasive belt is driven to rotate within a range of 90 degrees by rotating the assembly drive assembly turntable, thereby facilitating the polishing operation of multiple special-shaped surfaces on the workpiece without changing the posture of the workpiece.

[0029] The circular baffle 16 is provided with a through hole for the sanding belt 7 and the installation cross bar 151 to pass through.

[0030] The rotating assembly 9 includes a speed reducer 92 and a servo motor.

[0031] The outer diameter of the driven gear 11 is greater than the outer diameter of the driving gear 10 .

[0032] The ratio of the outer diameter of the driving gear 10 to the outer diameter of the driven gear 11 is 1:7.

[0033] The support plate 8 is perpendicular to the turntable 12 and is arranged along the radial direction of the turntable 12 .

[0034] The end surface of one end of the support plate 8 is connected to the turntable 12 via a plurality of bolts arranged at intervals.

[0035] The support plate 8 and the turntable 12 are connected via at least two right-angle plates 13 , one right-angle end surface of the right-angle plate 13 is fixedly connected to the support plate 8 , and the other right-angle end surface is fixedly connected to the turntable 12 .

[0036] A support ring 14 is arranged outside the driven gear 11 and between the rotating disk 12 and the support plate 8 . The support ring 14 is fixedly mounted on the support plate 8 .

[0037] The outer surface of the support ring 14 is flush with the outer surface of the turntable 12 .

[0038] The working principle of the present invention is as follows: Used in conjunction with a robotic arm, the robotic arm clamps the workpiece to be processed so that the surface of the workpiece to be processed that needs to be polished is pressed into contact with the abrasive belt, and the surface of the workpiece is polished by the abrasive belt; When a workpiece has multiple special-shaped surfaces that need to be polished, the abrasive belt is driven to rotate within a range of 90 degrees by rotating the assembly drive assembly turntable, thereby facilitating the polishing operation of multiple special-shaped surfaces on the workpiece without changing the posture of the workpiece; When the surface to be polished on the workpiece is a small-sized arc surface, the cylinder drives the support wheel to move toward the abrasive belt and pushes the abrasive belt outward, so as to obtain a small-sized grinding wheel surface covered by the abrasive belt, so as to facilitate the polishing of the small-sized arc surface on the workpiece; It should be noted that a floating mechanism can also be installed between the mounting cross bar and the mounting bracket to ensure the constancy of the tension of the abrasive belt and the friction force applied by the abrasive belt to the workpiece surface, thereby ensuring the consistency of processing quality. The floating mechanism here already has a complete implementation plan in the prior art, so it will not be repeated here.

[0039] When using the above-mentioned belt polishing machine, it can not only grind the special-shaped surface of the workpiece without changing the posture of the workpiece through the rotation of the sanding belt, thereby improving the processing efficiency and quality, but also effectively shield the waste chips generated during the grinding process through the casing and the baffle, thereby extending the service life of the equipment.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A belt polishing machine for processing a workpiece (100), comprising: A housing (21) and two base plates (1) arranged in the housing (21) at intervals in the vertical direction, wherein a motor (2) is mounted on the surface of one side of each of the base plates (1), and a driving wheel (3), a first driven wheel (4), a second driven wheel (5), and a third driven wheel (6) are arranged in sequence in a clockwise direction on the other side of the base plates (1), and the driving wheel (3) connected to the output shaft of the motor (2) is connected to the first driven wheel (4), the second driven wheel (5), and the third driven wheel (6) through a grinding belt (7), characterized in that: one side of the housing (21) Two support plates (8) corresponding to the base plate (1) are mounted on the inner wall thereof; a rotating assembly (9) is mounted on the surface of each support plate (8) on the side close to the housing (21); a rotating shaft (91) of the rotating assembly (9) passes through the support plate (8) and is fitted with a driving gear (10); a driven gear (11) meshing with the driving gear (10) is rotatably mounted on the surface of the other side of the support plate (8); a rotating disk (12) is mounted on the driven gear (11) on the side opposite to the support plate (8); and the base plate (1) is mounted on the rotating disk (12); The driving wheel (3) and the first driven wheel (4) are each rotatably mounted on the base plate (1) and arranged close to the turntable (12); one end of a mounting cross bar (151) is connected to the base plate (1); the other end of the mounting cross bar (151) extends horizontally to the outside of the other side of the housing (21) and is mounted with a mounting bracket (152); the second driven wheel (5) and the third driven wheel (6) are rotatably mounted at both ends of the mounting bracket (152) extending to both sides of the mounting cross bar (151); the workpiece (100 ) is in squeeze contact with an abrasive belt (7) located between the second driven wheel (5) and the third driven wheel (6) and outside the housing (21); a circular baffle (16) is installed on the end surface of the base plate (1) away from the turntable (12); a circular through hole (17) is provided on the housing (21) to cooperate with the circular baffle (16); the circular baffle (16) embedded in the circular through hole (17) is flush with the side wall of the housing (21), and the outer circumferential surface of the circular baffle (16) is rotatably matched with the inner wall of the circular through hole (17).

2. The belt polishing machine according to claim 1, characterized in that: The circular baffle (16) is provided with a through hole for the sanding belt (7) and the mounting cross bar (151) to pass through.

3. The belt polishing machine according to claim 1, characterized in that: A cylinder (18) is mounted on the mounting cross bar (151) and located outside the housing (21); a piston portion (181) of the cylinder (18) is arranged toward the sanding belt (7), and a support wheel (19) is rotatably mounted on the piston portion (181); when the piston portion (181) of the cylinder (18) is in an extended state, the support wheel (19) in compression contact with the sanding belt (7) pushes the sanding belt (7) between the second driven wheel (5) and the third driven wheel (6) out in a direction away from the base plate (1).

4. The belt polishing machine according to claim 3, characterized in that: The diameter of the supporting wheel (19) is much smaller than the diameter of each driven wheel.

5. The belt polishing machine according to claim 3, characterized in that: The support wheel (19) is mounted on the piston portion (181) of the cylinder (18) via a mounting seat (20).

6. The belt polishing machine according to claim 1, characterized in that: The rotating assembly (9) comprises a reducer (92) and a hand wheel (93), and the driving gear (10) is mounted on the output shaft of the reducer (92).

7. The belt polishing machine according to claim 1, characterized in that: The rotating assembly (9) comprises a reducer (92) and a servo motor.

8. The belt polishing machine according to claim 1, characterized in that: The outer diameter of the driven gear (11) is greater than the outer diameter of the driving gear (10).

9. The belt polishing machine according to claim 8, characterized in that: The ratio of the outer diameter of the driving gear (10) to the outer diameter of the driven gear (11) is 1:3-8.

10. The belt polishing machine according to claim 1, characterized in that: The motor (2) is a servo motor.

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