High-efficiency automatic grinding machine

Abstract

The utility model provides a high-efficiency automatic grinding machine which comprises a fixing box, a supporting plate is arranged in the fixing box in a sliding mode, a grinding assembly is installed at the bottom of the supporting plate, and a driving mechanism used for driving the grinding assembly to slide horizontally is arranged at the bottom of the supporting plate. Two pressing assemblies are fixedly arranged at the bottom of the supporting plate. Each pressing assembly comprises a fixed box, the fixed box is fixedly arranged at the bottom of the supporting plate, a second rack is slidably arranged in each fixed box, a spring is fixedly arranged at the top of each second rack, and the top of each spring is fixedly connected with the inner wall of the top of the corresponding fixed box; a pressing plate is arranged at the bottom of each second rack; a gear is rotationally arranged in each fixed box, a first rack is horizontally arranged in each fixed box, and each gear is meshed with the first rack and the second rack in the fixed box where the gear is located; the opposite ends of the two first racks abut against and are matched with the grinding assembly. And on the premise that the workpiece is fixed, the polishing assembly can comprehensively polish the upper surface of the workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinders, and in particular relates to a high-efficiency automatic grinder. Background Art

[0002] During the production and processing of molds, in order to ensure the mold's precision, appearance and other characteristics, it is usually necessary to perform different degrees of polishing. In daily life, a grinder is usually used to perform fine processing on the mold. Compared with traditional manual polishing, the polishing of the grinder is more efficient and has a higher yield rate.

[0003] The existing patent with announcement number CN214109975U discloses an automatic grinder, including a base, two support frames are fixedly mounted on the base, the top of the two support frames are fixedly mounted with the same horizontal plate, and a motor is fixedly mounted on one of the support frames; the output shaft of the motor is fixedly mounted with a rotating shaft, and two cylinders are fixedly mounted on the rotating shaft, and short rods are movably connected to the two cylinders, and the bottoms of the two short rods are fixedly connected to a connecting plate; a telescopic column is fixedly set on the bottom plate of the connecting plate, and a grinder is fixedly mounted on the bottom of the telescopic column; two plywoods are arranged in the vertical direction in the space enclosed by the base, the support frames and the horizontal plate, the grinder is located between the two plywoods, and telescopic rods are fixedly set between the two plywoods and the grinder.

[0004] The applicant believes that the above technical solution has the following drawbacks: after the workpiece is fixed by the clamping plate, the motor is activated to drive the grinder to slide back and forth, thereby grinding the workpiece surface back and forth. However, during the entire grinding process, the grinder is unable to grind the joint between the workpiece and the clamping plate, resulting in incomplete grinding of the workpiece surface and low grinding efficiency. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a high-efficiency automatic grinder.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] Furthermore, an electric push rod is fixedly installed on the top inner wall of the machine, and a telescopic shaft of the electric push rod is fixedly connected to the top of the support plate.

[0009] Furthermore, the driving mechanism includes a fixed plate, a fixed plate and a fixed frame are fixedly arranged on the top of the support plate, and a motor is fixedly installed on the fixed frame; the output shaft of the motor is fixedly connected to a threaded rod, and the end of the threaded rod away from the motor is rotatably connected to the fixed box; the outer surface of the threaded rod is threadedly connected to a moving block, and the moving block and the support plate are limited and slidably matched, and a connecting shaft is fixedly arranged at the bottom of the moving block, and the bottom of the connecting shaft is fixedly connected to the grinding assembly.

[0010] Furthermore, the grinding assembly includes a grinding motor, the grinding motor is fixedly installed on the bottom of the connecting shaft, and a grinding disc is coaxially fixedly arranged on the output shaft of the grinding motor.

[0011] This application has the following beneficial effects:

[0012] During the process of grinding the workpiece surface by the grinding assembly, each time the grinding assembly approaches a pressure plate, the pressure plate will automatically move upward, thereby achieving comprehensive grinding of the upper surface of the workpiece by the grinding assembly without affecting the fixation of the workpiece, and achieving a better overall grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the fixed box of the utility model;

[0016] Figure 3 It is a schematic diagram of the driving mechanism structure of the utility model.

[0017] Description of reference numerals:

[0018] 1. Machine platform; 2. Electric push rod; 3. Support plate; 4. Fixed box; 5. Spring; 6. Fixed shaft; 7. Gear; 8. First rack; 9. Second rack; 10. Pressing plate; 11. Motor; 12. Fixed bracket; 13. Threaded rod; 14. Moving block; 15. Connecting shaft; 16. Grinding motor; 17. Fixed plate; 18. Grinding disc. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0020] like Figure 1-Figure 3 As shown, the technical solution adopted by the present invention is as follows: a high-efficiency automatic grinder includes a machine platform 1, an electric push rod 2 is fixedly installed on the top inner wall of the machine platform 1, and the telescopic shaft of the electric push rod 2 is fixedly connected to the support plate 3.

[0021] A grinding assembly is slidably mounted on the bottom of the support plate 3, and a driving mechanism for driving the grinding assembly to slide horizontally is provided at the bottom of the support plate 3. The driving mechanism includes a fixed plate 17, a fixed frame 12 and a fixed plate 17 are fixedly mounted on the bottom of the support plate 3, and a motor 11 is fixedly mounted on the fixed frame 12. The output shaft of the motor 11 is fixedly connected to a threaded rod 13, and the end of the threaded rod 13 away from the motor 11 is rotatably connected to the fixed plate 17. The outer surface of the threaded rod 13 is threadedly connected to a moving block 14, and the top of the moving block 14 is in limited sliding engagement with the bottom of the support plate 3. A connecting shaft 15 is fixedly mounted on the bottom of the moving block 14, and the bottom of the connecting shaft 15 is fixedly connected to the grinding assembly.

[0022] The grinding assembly includes a grinding motor 16 . The grinding motor 16 is fixedly mounted on the bottom of the connecting shaft 15 . The output shaft of the grinding motor 16 is coaxially fixedly connected to the grinding disc 18 .

[0023] Two pressing assemblies are fixedly provided at the bottom of the support plate 3, and the grinding assembly is located between the two pressing assemblies. Each pressing assembly includes a fixed box 4, and each fixed box 4 is fixedly provided at the bottom of the support plate 3. A second rack 9 is provided in each fixed box 4 so as to slide up and down, and a spring 5 is fixedly provided at the top of each second rack 9, and the top of each spring 5 is fixedly connected to the top inner wall of the fixed box 4. The bottom of each second rack 9 slides through the bottom of the fixed box 4, and a pressing plate 10 is fixedly provided at the bottom of each second rack 9. A T-shaped limit block (not shown in the figure) is fixedly provided on each second rack 9, and a T-shaped limit groove (not shown in the figure) that slides with the T-shaped limit block is provided on the inner wall of each fixed box 4.

[0024] A fixed shaft 6 is rotatably provided in each fixed box 4, and both ends of each fixed shaft 6 are rotatably connected to the inner wall of the fixed box 4. A gear 7 is fixedly sleeved on each fixed shaft 6.

[0025] A first rack 8 is mounted in each fixed box 4 and is slidably positioned horizontally. Both ends of each first rack 8 slide through the corresponding fixed box 4. Gears 7 correspond to both the first rack 8 and the second rack 9. Each gear 7 meshes with both the corresponding first rack 8 and the corresponding second rack 9.

[0026] All structures in this application can be selected in size according to actual usage. The accompanying drawings are schematic structural diagrams, and the specific actual dimensions can be adjusted appropriately.

[0027] Working principle: Place the workpiece to be polished in the machine 1 so that it is placed under the polishing disc 18 and the pressing plate 10.

[0028] In the initial state, the pressing plate 10 and the grinding disc 18 are both in a suspended state, and the pressing plate 10 is lower than the grinding disc 18 .

[0029] When the electric push rod 2 is activated, its telescopic shaft drives the support plate 3 downward. This plate 3, through the fixed plate 17 and the fixed frame 12, drives the threaded rod 13 downward. The threaded rod 13 then drives the grinding disc 18 downward via the moving block 14, the connecting shaft 15, and the grinding motor 16. During this process, the support plate 3 drives the fixed box 4 downward, which in turn drives the pressure plate 10 downward in a synchronous manner.

[0030] As the support plate 3 continues to move downward, the pressure plates 10 on both sides of the grinding motor 16 will first contact the top of the workpiece. Subsequently, under the obstruction of the workpiece, the second rack 9 moves upward relative to the fixed box 4. The upward movement of the second rack 9 drives the gear 7 to rotate. The rotation of the gear 7 drives the first rack 8 meshing with it toward the grinding motor 16 until both first racks 8 contact the grinding motor 16, at which point the grinding disc 18 just contacts the workpiece. In addition, as the second rack 9 moves upward relative to the fixed box 4, it compresses the spring 5. The elasticity of the spring 5 can exert force on the pressure plate 10, thereby preventing the pressure plate 10 from sliding.

[0031] Stop the electric push rod 2. Start the grinding motor 16, and the output shaft of the grinding motor 16 drives the grinding disc 18 to rotate, thereby grinding the upper surface of the workpiece.

[0032] The output shaft of the control motor 11 rotates in the forward direction, and the output shaft of the motor 11 drives the threaded rod 13 to rotate. The rotation of the threaded rod 13 drives the moving block 14 to slide to the right along the central axis of the threaded rod 13. The sliding of the moving block 14 drives the connecting shaft 15, the grinding motor 16 and the grinding disc 18 to move synchronously.

[0033] As the moving block 14 slides to the right, the grinding motor 16 pushes the first rack 8 on the right side to slide synchronously, thereby rotating the gear 7 on the right side. This rotation of the gear 7 drives the second rack 9 on the right side to slide upward, which in turn drives the pressure plate 10 on the right side to slide upward, gradually increasing the compression deformation of the spring 5 on the right side. During this process, the pressure plate 10 on the left side does not slide, continuously securing the workpiece.

[0034] When the moving block 14 slides to the right, it also drives the grinding disc 18 to move to the right. When the grinding disc 18 moves to the contact position between the right pressure plate 10 and the workpiece, the right pressure plate 10 is located above the grinding disc 18. Therefore, the grinding disc 18 does not come into contact with the right pressure plate 10 during the movement to the right.

[0035] The output shaft of motor 11 is then controlled to rotate in the opposite direction, causing the output shaft of motor 11 to drive the moving block 14 to slide to the left. As the moving block 14 slides to the left, the spring 5 on the right side, under its own elastic action, pushes the second rack 9 on the right side to slide downward, thereby driving the pressure plate 10 on the right side to slide downward. During this process, the second rack 9 on the right side pushes the gear 7 on the right side to rotate in the opposite direction, thereby pushing the first rack 8 on the right side to slide toward the left, causing the first rack 8 on the right side to press against the grinding motor 16 and slide synchronously to the left until the moving block 14 is reset and the grinding motor 16 is once again pressed against the two first racks 8.

[0036] When the moving block 14 slides to the left, it also drives the grinding disc 18 to move to the left. When the grinding disc 18 is out of contact with the workpiece on the right pressure plate 10, the right pressure plate 10 is located above the grinding disc 18. Therefore, the grinding disc 18 does not come into contact with the right pressure plate 10 during the movement to the left.

[0037] As the moving block 14 continues to slide to the left, the grinding motor 16 pushes the first rack 8 on the left side to slide synchronously, thereby rotating the gear 7 on the left side. This rotation of the gear 7 causes the second rack 9 on the left side to slide upward, which in turn causes the pressure plate 10 on the left side to slide upward, gradually increasing the compression deformation of the left spring 5. During this process, the pressure plate 10 on the right side does not slide, continuously securing the workpiece.

[0038] When the moving block 14 slides to the left, it also drives the grinding disc 18 to move to the left. When the grinding disc 18 moves to the contact position between the left pressure plate 10 and the workpiece, the left pressure plate 10 is located above the grinding disc 18. Therefore, the grinding disc 18 does not come into contact with the left pressure plate 10 during the movement to the left.

[0039] The output shaft of motor 11 is then controlled to rotate in the forward direction, causing the output shaft of motor 11 to drive the moving block 14 to slide to the right. As the moving block 14 slides to the right, the spring 5 on the left side, under its own elastic action, pushes the second rack 9 on the left side to slide downward, thereby driving the pressure plate 10 on the left side to slide downward. During this process, the second rack 9 on the left side pushes the gear 7 on the left side to rotate in the opposite direction, thereby pushing the first rack 8 on the left side to slide toward the right, causing the first rack 8 on the left side to press against the grinding motor 16 and slide synchronously to the right until the moving block 14 is reset and the grinding motor 16 is once again pressed against the two first racks 8.

[0040] Thereby completing the comprehensive grinding of the upper surface of the workpiece.

Claims

1. A high-efficiency automatic grinding machine, characterized in that: The invention comprises a fixed box (4), a support plate (3) is arranged in the fixed box (4) for sliding up and down, a grinding assembly is fixedly installed at the bottom of the support plate (3), and a driving mechanism for driving the grinding assembly to slide horizontally is provided at the bottom of the support plate (3); two pressing assemblies are fixedly arranged at the bottom of the support plate (3), and the grinding assembly is located between the two pressing assemblies; each pressing assembly comprises a fixed box (4), a fixed box (4) is fixedly arranged at the bottom of the support plate (3), a second rack (9) is arranged in each fixed box (4) for sliding up and down, and each second rack (9) has a A spring (5) is fixedly arranged at the top, and the top of each spring (5) is fixedly connected to the top inner wall of the fixed box (4); the bottom of each second rack (9) slides through the fixed box (4) and is fixedly arranged with a pressure plate (10); a gear (7) is rotatably arranged in each fixed box (4), and a first rack (8) is horizontally arranged in each fixed box (4), and each gear (7) is meshed with the first rack (8) and the second rack (9) in the fixed box (4); the facing ends of the two first racks (8) are in contact with the grinding assembly.

2. The high-efficiency automatic grinding machine according to claim 1, characterized in that: An electric push rod (2) is fixedly mounted on the inner wall of the top of the machine platform (1), and a telescopic shaft of the electric push rod (2) is fixedly connected to the top of the support plate (3).

3. The high-efficiency automatic grinding machine according to claim 1, characterized in that: The driving mechanism comprises a fixed plate (17), a fixed plate (17) and a fixed frame (12) are fixedly arranged on the top of the support plate (3), and a motor (11) is fixedly installed on the fixed frame (12); the output shaft of the motor (11) is fixedly connected to a threaded rod (13), and one end of the threaded rod (13) away from the motor (11) is rotatably connected to the fixed box (4); the outer surface of the threaded rod (13) is threadedly connected to a moving block (14), and the moving block (14) and the support plate (3) are limitedly slidably matched, and a connecting shaft (15) is fixedly arranged at the bottom of the moving block (14), and the bottom of the connecting shaft (15) is fixedly connected to the grinding assembly.

4. The high-efficiency automatic grinding machine according to claim 3, characterized in that: The grinding assembly comprises a grinding motor (16), the grinding motor (16) is fixedly mounted on the bottom of the connecting shaft (15), and a grinding disc (18) is coaxially fixedly arranged on the output shaft of the grinding motor (16).

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