A precision mold grinding device

Abstract

This utility model discloses a precision mold grinding device, relating to the field of mold grinding. It aims to solve the problem that existing grinding devices, when grinding the outer surface of cylindrical molds, cannot follow the principle of "from coarse to fine" to gradually eliminate surface scratches, thus failing to effectively eliminate deep defects in cylindrical molds. The key technical points are: a support base, a motor and a limiting rod fixedly connected to the support base, a threaded rod fixedly connected to the rotating shaft of the motor, a sliding plate threadedly connected to the threaded rod, the sliding plate slidably connected to the limiting rod, a fixing component for fixing the mold on the sliding plate, and a grinding component for grinding the mold on the support base. This precision mold grinding device can fix the cylindrical mold and drive its rotation through the fixing component, thereby cooperating with the grinding component to gradually grind the cylindrical mold, gradually eliminating surface scratches and improving the smoothness of the cylindrical mold.

Description

Technical Field

[0001] This utility model relates to the field of mold grinding, and more specifically, it relates to a precision mold grinding device. Background Technology

[0002] Precision molds are core equipment in the manufacturing industry and are widely used in many fields such as automobiles, electronics, home appliances, and medical devices. In the process of mold manufacturing and repair, grinding is a crucial finishing process, which aims to remove tool marks and deteriorated layers left by previous processes and achieve the surface roughness and precise geometry required by the drawings.

[0003] The patent with publication number CN212918757U discloses a grinding device for mold production, including a crossbeam, a motor fixed at the top of the crossbeam, a rotating shaft connected through the output shaft of the motor, a cross plate fixed at the bottom of the rotating shaft, a movable block provided at the top of the cross plate, a connecting rod connected through the bottom of the movable block, an installation block fixed at the bottom of the connecting rod, an outer grinding layer fixed on one side of the installation block, an inner grinding layer fixed on the side of the installation block away from the outer grinding layer, and support mechanisms provided on both sides of the bottom of the crossbeam.

[0004] The grinding device in the above solution can automatically grind the inner and outer surfaces of a cylindrical or annular mold at the same time. However, when grinding the outer surface of a cylindrical mold, this grinding device cannot follow the principle of "from coarse to fine" to gradually eliminate surface scratches, and thus cannot effectively eliminate deep defects in the cylindrical mold.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a precision mold grinding device. This device can fix a cylindrical mold with a fixing component and drive it to rotate, thereby cooperating with the grinding component to gradually grind the cylindrical mold, gradually eliminating surface scratches and improving the smoothness of the cylindrical mold.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a precision mold grinding device includes a support base, a motor and a limiting rod fixedly connected to the support base, a threaded rod fixedly connected to the rotating shaft of the motor, a sliding plate threadedly connected to the threaded rod, the sliding plate being slidably connected to the limiting rod, a fixing component for fixing the mold on the sliding plate, and a grinding component for grinding the mold on the support base.

[0008] The present invention is further configured such that: the fixing component includes a motor fixedly connected to the sliding plate, a plurality of positioning rods fixedly connected to the sliding plate, and a limiting plate slidably connected to the plurality of positioning rods; a spring is sleeved on the positioning rod; the two ends of the spring are fixedly connected to the sliding plate and the limiting plate respectively; and a rubber block is rotatably connected to the limiting plate.

[0009] The present invention is further configured such that a rubber block is fixedly connected to the rotating shaft of the second motor.

[0010] The present invention is further configured such that: the grinding assembly includes a motor three and a motor four fixedly connected to a support base, a rotating rod one and a rotating rod two rotatably connected to the support base, a plurality of take-up rollers one fixedly connected sequentially to the motor three and the rotating rod one, and a plurality of take-up rollers two fixedly connected sequentially to the motor four and the rotating rod two; a gear one fixedly connected between two adjacent take-up rollers one on the same side, and the two adjacent gears one meshing with each other; a gear two fixedly connected between two adjacent take-up rollers two on the same side, and the two adjacent gears two meshing with each other; the take-up rollers one and the adjacent take-up rollers two are connected by a grinding belt; the mesh count of the plurality of grinding belts increases sequentially from low to high; and the support base is provided with an adjusting component for adjusting the position of the grinding belt.

[0011] The present invention is further configured such that: the adjusting component includes a plurality of adjusting rods slidably connected to the support base, a plurality of fixing blocks fixedly connected to the support base, and a fixing rod fixedly connected between two adjacent fixing blocks; each of the two adjacent adjusting rods is slidably connected to an adjacent fixing rod; a second spring is fixedly connected to one side of the two adjacent adjusting rods away from each other; the other end of the second spring is fixedly connected to an adjacent fixing block; and the plurality of second springs are respectively sleeved on the adjacent fixing rods.

[0012] The present invention is further configured such that an anti-detachment block is fixedly connected to the top of the threaded rod and the positioning rod.

[0013] In summary, this utility model has the following beneficial effects: the cylindrical mold can be fixed and rotated by the fixing component, thereby cooperating with the grinding component to gradually grind the cylindrical mold, gradually eliminating surface scratches and improving the smoothness of the cylindrical mold. Furthermore, the cooperation between the adjusting rod, fixing block, fixing rod, and spring makes it more convenient to put the cylindrical mold in for grinding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention. Figure 1 ; Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0015] In the diagram: 1. Support base; 2. Motor 1; 3. Limiting rod; 4. Threaded rod; 5. Sliding plate; 6. Motor 2; 7. Positioning rod; 8. Limiting plate; 9. Spring 1; 10. Rubber block 1; 11. Rubber block 2; 12. Motor 3; 13. Motor 4; 14. Rotating rod 1; 15. Rotating rod 2; 16. Take-up roller 1; 17. Take-up roller 2; 18. Gear 1; 19. Gear 2; 20. Grinding belt; 21. Adjusting rod; 22. Fixing block; 23. Fixing rod; 24. Spring 2; 25. Anti-detachment block. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] A precision mold grinding device, such as Figures 1-3 As shown, the device includes a support base 1, a motor 2 and a limiting rod 3 fixedly connected to the support base 1, a threaded rod 4 fixedly connected to the rotating shaft of the motor 2, a sliding plate 5 threadedly connected to the threaded rod 4, the sliding plate 5 and the limiting rod 3 being slidably connected, a fixing component for fixing the mold on the sliding plate 5, and a grinding component for grinding the mold on the support base 1. The fixing component includes a motor 6 fixedly connected to the sliding plate 5, several positioning rods 7 fixedly connected to the sliding plate 5, and a limiting plate 8 slidably connected to the positioning rods 7. A spring 9 is sleeved on the positioning rod 7, and the two ends of the spring 9 are fixedly connected to the sliding plate 5 and the limiting plate 8 respectively. A rubber block 10 is rotatably connected to the limiting plate 8, and a rubber block 11 is fixedly connected to the rotating shaft of the motor 6. The rubber blocks 10 and 11 can prevent the mold from being damaged when the limiting plate 8 and the motor 6 clamp the mold.

[0018] like Figures 1-3As shown, when grinding a cylindrical mold, motor 2 can be started first to rotate the threaded rod 4. As the threaded rod 4 rotates, it causes the sliding plate 5 to slide upwards on the limiting rod 3. When the sliding plate 5 slides, it also causes motor 6, the positioning rod 7, the limiting plate 8, spring 9, rubber block 10, and rubber block 11 to slide upwards. When the sliding plate 5 reaches its highest point, the limiting plate 8 can be pulled away from the sliding plate 5. At this time, spring 9 is in a stretched state, and rubber blocks 10 and 11 will also move away from each other. Then, the cylindrical mold can be ground. The mold is placed between rubber block 10 and rubber block 21. Then, the limiting plate 8 is released. The limiting plate 8 will be clamped and fixed by spring 9. Then, the position of the cylindrical mold is further adjusted so that the center of the cylindrical mold is the same as the center of rubber block 21. Then, motor 12 is started to drive the threaded rod 4 to reverse, so that the sliding plate 5 slides down to the bottom on the limiting rod 3. Then, motor 26 can be turned on to drive the cylindrical mold to rotate and cooperate with the grinding component to gradually grind the cylindrical mold, gradually eliminate surface scratches, and improve the smoothness of the cylindrical mold.

[0019] like Figure 1 , Figure 3 As shown, the grinding assembly includes a motor 12 and a motor 13 fixedly connected to a support base 1, a rotating rod 14 and a rotating rod 15 rotatably connected to the support base 1, a plurality of take-up rollers 16 sequentially fixedly connected to the motor 12 and the rotating rod 14, and a plurality of take-up rollers 17 sequentially fixedly connected to the motor 13 and the rotating rod 15. A gear 18 is fixedly connected between two adjacent take-up rollers 16 on the same side, and the two adjacent gears 18 mesh with each other. A gear 19 is fixedly connected between two adjacent take-up rollers 17 on the same side, and the two adjacent gears 19 mesh with each other. The take-up rollers 16 and the adjacent take-up rollers 17... The 7 are connected by a grinding belt 20. The grit of the grinding belt 20 increases from low to high. The support base 1 is provided with an adjusting component for adjusting the position of the grinding belt 20. The adjusting component includes a number of adjusting rods 21 that are slidably connected on the support base 1, a number of fixing blocks 22 that are fixedly connected on the support base 1, and a fixing rod 23 that is fixedly connected between two adjacent fixing blocks 22. Two adjacent adjusting rods 21 are slidably connected to adjacent fixing rods 23. Two springs 24 are fixedly connected to the side of two adjacent adjusting rods 21 that are far apart from each other. The other end of the springs 24 is fixedly connected to the adjacent fixing block 22. Several springs 24 are respectively sleeved on the adjacent fixing rods 23.

[0020] like Figure 1 , Figure 3As shown, when the cylindrical mold is fixed and the sliding plate 5 is at the bottom of the limiting rod 3, the motor 312 can be started to drive the take-up roller 16 to rotate. When the motor 312 drives the take-up roller 16 to rotate, it will also drive the gear 18 to rotate, which in turn drives the gear 18 meshing with it to rotate. When the gear 18 meshes with it to rotate, it can drive the rotating rod 14 and the take-up roller 16 on it to rotate. At this time, the take-up rollers 16 on both sides will roll up the polishing belt 20 wound on them, so that the polishing belt 20 on both sides is in close contact with the outer wall of the cylindrical mold. At this time, the adjusting rods 21 on both sides will also be pushed closer to each other by the polishing belt 20 on both sides, and the spring 24 will be in a stretched state. Then the motor 26 can be turned on to drive the cylindrical mold. The cylindrical mold rotates for grinding. After grinding for 2-5 minutes, motor 26 can be turned off, and motor 312 can be turned on in reverse to stop tensioning the grinding belt 20. At this time, spring 24 will reset and drive the adjusting rods 21 on both sides to move away from each other. The grinding belts 20 on both sides will also be pushed by the adjusting rods 21 and will no longer contact the cylindrical mold. Then, motor 12 can be turned on to drive the threaded rod 4 to rotate, so that the circular mold moves upward between the two grinding belts 20. Then, the grinding can be carried out in the same way. When the grinding belt 20 is worn, motor 413 can be turned on to drive the take-up roller 217 to rotate and take up the worn part of the grinding belt 20. At this time, the unworn part of the grinding belt 20 on the take-up roller 16 will be in working condition.

[0021] like Figures 1-3 As shown, the threaded rod 4 and the top of the positioning rod 7 are fixedly connected with an anti-detachment block 25, which can prevent the sliding plate 5 from falling off the threaded rod 4 and the positioning rod 7.

[0022] Working principle: When grinding a cylindrical mold, motor 2 is started first to rotate the threaded rod 4. As the threaded rod 4 rotates, it causes the sliding plate 5 to slide upwards on the limiting rod 3. When the sliding plate 5 slides, it also causes motor 6, the positioning rod 7, the limiting plate 8, spring 9, rubber block 10, and rubber block 11 to slide upwards. When the sliding plate 5 reaches its highest point, the limiting plate 8 is pulled away from the sliding plate 5. At this time, spring 9 is in a stretched state, and rubber blocks 10 and 11 also move in opposite directions. Move the cylindrical mold away from the rubber block 10 and rubber block 21, then release the limiting plate 8. Next, adjust the position of the cylindrical mold so that its center aligns with the center of rubber block 21. Then, start motor 12 to reverse the threaded rod 4, causing the sliding plate 5 to slide downwards on the limiting rod 3 to its lowest point. Next, start motor 26 to rotate the cylindrical mold and start motor 312 to rotate the take-up roller 16. When motor 312 rotates the take-up roller 16, it will also rotate... Gear 18 rotates, which in turn drives the gear 18 meshing with it to rotate. When the meshing gear 18 rotates, it drives the rotating rod 14 and the winding roller 16 on it to rotate. At this time, the winding rollers 16 on both sides will wind up the polishing belt 20, so that the polishing belt 20 on both sides is in close contact with the outer wall of the cylindrical mold. At this time, the adjusting rods 21 on both sides will also be pushed closer to each other by the polishing belt 20 on both sides, and the spring 24 will be in a stretched state. Then, the motor 26 can be turned on to drive the cylindrical mold to rotate for polishing. After 2-5 minutes, motor 26 can be turned off, and motor 312 can be turned on in reverse to stop tensioning the grinding belt 20. At this time, spring 24 will reset and drive the adjusting rods 21 on both sides to move away from each other. The grinding belts 20 on both sides will also be pushed by the adjusting rods 21 on both sides and will no longer contact the cylindrical mold. Then, motor 12 can be turned on to drive the threaded rod 4 to rotate, so that the circular mold moves upward between the two grinding belts 20. Then, the same process can be used to grind gradually to eliminate surface scratches and improve the smoothness of the cylindrical mold.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A precision mold grinding device, comprising a support base (1), characterized in that: A motor (2) and a limiting rod (3) are fixedly connected to the support base (1). A threaded rod (4) is fixedly connected to the rotating shaft of the motor (2). A sliding plate (5) is threadedly connected to the threaded rod (4). The sliding plate (5) is slidably connected to the limiting rod (3). A fixing component for fixing the mold is provided on the sliding plate (5). A grinding component for grinding the mold is provided on the support base (1).

2. The precision mold grinding device according to claim 1, characterized in that: The fixing assembly includes a motor (6) fixedly connected to the sliding plate (5), a plurality of positioning rods (7) fixedly connected to the sliding plate (5), and a limiting plate (8) slidably connected to the plurality of positioning rods (7). A spring (9) is sleeved on the positioning rod (7). The two ends of the spring (9) are fixedly connected to the sliding plate (5) and the limiting plate (8) respectively. A rubber block (10) is rotatably connected to the limiting plate (8).

3. The precision mold grinding device according to claim 2, characterized in that: A rubber block (11) is fixedly connected to the rotating shaft of the motor (6).

4. The precision mold grinding device according to claim 1, characterized in that: The grinding assembly includes a third motor (12) and a fourth motor (13) fixedly connected to a support base (1), a first rotating rod (14) and a second rotating rod (15) rotatably connected to the support base (1), a plurality of first winding rollers (16) sequentially fixedly connected to the third motor (12) and the first rotating rod (14), and a plurality of second winding rollers (17) sequentially fixedly connected to the fourth motor (13) and the second rotating rod (15). Adjacent first winding rollers (16) on the same side are fixedly connected. There is a gear 1 (18), and two adjacent gear 1 (18) mesh with each other. Two adjacent take-up rollers 2 (17) on the same side are fixedly connected by a gear 2 (19), and two adjacent gear 2 (19) mesh with each other. The take-up roller 1 (16) and the adjacent take-up roller 2 (17) are connected by a grinding belt (20). The mesh count of several grinding belts (20) increases sequentially from low to high. The support base (1) is provided with an adjusting component for adjusting the position of the grinding belt (20).

5. The precision mold grinding device according to claim 4, characterized in that: The adjusting component includes a plurality of adjusting rods (21) slidably connected on a support base (1), a plurality of fixing blocks (22) fixedly connected on the support base (1), and a fixing rod (23) fixedly connected between two adjacent fixing blocks (22). Two adjacent adjusting rods (21) are slidably connected to adjacent fixing rods (23). Two adjacent adjusting rods (21) are fixedly connected to a spring (24) on one side away from each other. The other end of the spring (24) is fixedly connected to the adjacent fixing block (22). Several springs (24) are respectively sleeved on the adjacent fixing rods (23).

6. The precision mold grinding device according to claim 1, characterized in that: The threaded rod (4) and the top of the positioning rod (7) are fixedly connected with an anti-detachment block (25).

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