Clamp of surface grinding machine

Abstract

The utility model provides a surface grinding machine clamp, which relates to the technical field of grinding machine clamps, and comprises a working table, a fixed block is fixedly arranged on the side surface of the working table, and a hydraulic cylinder is fixedly connected to the surface of the fixed block, and is provided with a movable block, a motor A, a clamping block, a limiting rod, a limiting disc, a spring A, a rubber pad and the like. The moving block is driven by the hydraulic cylinder, the clamping block can quickly move in the horizontal direction, clamping and positioning of the workpieces are facilitated, the motor A drives the rotating shaft and the clamping block to rotate, and the workpieces in different shapes can be subjected to clamp selection, so that the machining flexibility is improved. Limiting rods, limiting discs and springs A in the clamping blocks are matched with rubber pads, the clamping force can be automatically adjusted according to the sizes of workpieces, the device is suitable for the workpieces of different specifications, the situation that the workpieces deform due to too large clamping force or slide due to insufficient clamping force in the machining process can be effectively prevented, and the machining precision and safety are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine fixture technology, and in particular to a surface grinding machine fixture. Background Technology

[0002] Surface grinders, as common precision machining equipment, are widely used for surface grinding of various parts. The fixture of a surface grinder is a crucial component, and its performance directly affects machining accuracy, efficiency, and workpiece quality. Traditional surface grinder fixtures have several problems in use. For example, some fixtures have simple structures, only suitable for clamping workpieces of specific shapes and sizes, lacking versatility and failing to meet diverse machining needs. When machining workpieces of different specifications or shapes, the entire fixture often needs to be replaced, which not only increases production costs but also reduces machining efficiency. Furthermore, some fixtures have limited clamping force adjustment methods, making it difficult to automatically adjust the clamping force according to the characteristics of the workpiece. Excessive clamping force can easily deform the workpiece, affecting machining accuracy; insufficient clamping force can cause the workpiece to slip during machining, potentially damaging it and even causing safety accidents. CN210010841U discloses a fixture for a surface grinder, relating to the field of grinding machine fixtures. When grinding a workpiece on a surface grinder, the lower screw is rotated to move the right fixed block left and right to fix the workpiece laterally, while the left screw is rotated to move the left movable baffle forward and backward to fix the left end of the workpiece vertically. Similarly, rotating the right screw to move the right movable baffle forward and backward to fix the right end of the workpiece. Vertical fixation is implemented to ensure that the workpiece does not move back and forth during grinding, thus ensuring workpiece stability and improving machining safety. The fixture includes a base, worktable, left fixed block, right fixed block, lower screw, lower circular hole, and lower screw hole. It also includes a left front baffle, left rear baffle, left screw, left screw hole, left movable baffle, right rear baffle, right front baffle, right screw, right screw hole, and right movable baffle. While this device further improves the stability of the clamping mechanism, the stability of a single type of clamping fixture decreases when processing workpieces of various shapes. Furthermore, changing the fixture wastes a significant amount of time, necessitating improvement. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a surface grinder fixture, including a worktable, a fixing block fixedly installed on the side of the worktable, a hydraulic cylinder fixedly connected to the surface of the fixing block, a moving block fixedly connected to the output end of the hydraulic cylinder, a motor A fixedly connected to the lower surface of the moving block, a rotating shaft fixedly connected to the output end of the motor A, a clamping block fixedly connected to one end of the rotating shaft, a limit rod slidably connected inside the clamping block, a limit plate fixedly connected to one end of the limit rod, a spring A fixedly connected to the surface of the limit plate, a rubber pad slidably connected inside the clamping block, a fixing plate fixedly connected to the surface of the worktable, a motor B fixedly connected to the surface of the fixing plate, a screw A fixedly connected to the output end of the motor B, a sliding rod A fixedly connected to the inside of the fixing plate, and a moving frame threadedly connected to the surface of the screw A.

[0005] Preferably, a motor C is fixedly connected to the upper surface of the movable frame, a screw B is fixedly connected to the output end of the motor C, a slide bar B is fixedly connected inside the movable frame, a connecting block is slidably connected to the surface of the slide bar B, a motor D is fixedly connected to the surface of the connecting block, and a grinding wheel is fixedly connected to the output end of the motor D. Here, the motor C drives the screw B, which, in conjunction with the slide bar B, guides the connecting block, enabling precise vertical lifting and lowering of the connecting block. This adjusts the distance between the grinding wheel and the workpiece, meeting the needs of different machining depths. The motor D drives the grinding wheel to rotate at high speed. Combined with the horizontal movement of the movable frame and the vertical movement of the connecting block, the grinding wheel can perform grinding on the workpiece in multiple dimensions, greatly improving machining flexibility and efficiency while ensuring machining accuracy.

[0006] Preferably, the surface of the movable block is slidably connected to the interior of the worktable, the surface of the rotating shaft is rotatably connected to the interior of the movable block, and the surface of the limiting plate is slidably connected to the interior of the clamping block. Here, the application of slide rod A makes the sliding of the movable block within the worktable more stable and precise, and the smooth sliding of the limiting plate within the clamping block ensures that the limiting rod and spring A can work normally, achieving effective adjustment of the workpiece clamping force.

[0007] Preferably, one end of spring A is fixedly connected to the interior of the clamping block, the surface of screw A is rotatably connected to the interior of the fixed plate, and the interior of the moving frame is slidably connected to the surface of slide bar A. Here, the firm fixation of spring A within the clamping block ensures stable operation during clamping force adjustment, preventing loosening or detachment and guaranteeing reliable workpiece clamping. The use of tapered roller bearings effectively supports screw A, reducing wobbling and friction during screw A rotation and improving the accuracy and stability of the moving frame driven by motor B. Linear bearings make the sliding of the moving frame on slide bar A smoother, reducing motion resistance, improving the equipment's response speed and working efficiency, and also ensuring the accuracy of the moving frame's horizontal movement, providing a stable foundation for grinding wheel machining.

[0008] Preferably, a rotating rod is fixedly connected inside the movable block, a limit block is rotatably connected to the surface of the rotating rod, a vertical rod is fixedly connected inside the movable block, a spring B is sleeved on the surface of the vertical rod, a connecting rod is slidably connected to the surface of the vertical rod, and a top block is fixedly connected to the surface of the worktable. Here, the rotating rod is fixedly welded to a preset position inside the movable block to provide rotational support for the limit block. The vertical rod is vertically fixed inside the movable block and secured with bolts to ensure connection strength. Spring B is a helical compression spring, and the top block is a block structure fixed to the surface of the worktable with bolts. Its position corresponds to the movement trajectory of the limit block and the connecting rod, allowing the limit block to be pushed. By rotating the rotating rod, combined with the cooperation of spring B and the connecting rod, the clamping block can be limited during the movement of the movable block. When the movable block moves to a specific position, the top block pushes the limit block to rotate, thereby pushing the connecting rod to slide along the vertical rod and compress spring B, thus allowing the clamping block 7 to be rotated and changed.

[0009] Preferably, the two ends of the spring B are fixedly connected to the interior of the moving block and the surface of the connecting rod, respectively, while the side of the connecting rod is slidably connected to the interior of the moving block. Here, the secure connection at both ends of the spring B ensures that it can stably exert its elastic effect, effectively compressing and recovering under external force. The application of the upright rod within the guide groove makes the sliding of the connecting rod smoother and more precise.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model incorporates a moving block, motor A, clamping block, limiting rod, limiting plate, spring A, and rubber pad. The moving block, driven by a hydraulic cylinder, enables rapid horizontal movement of the clamping block, facilitating workpiece clamping and positioning. Motor A drives the rotating shaft and clamping block, allowing for fixture selection for workpieces of different shapes and improving processing flexibility. The limiting rod, limiting plate, and spring A inside the clamping block, in conjunction with the rubber pad, automatically adjust the clamping force according to the workpiece size. This not only applies to workpieces of different specifications but also effectively prevents workpiece deformation due to excessive clamping force or slippage due to insufficient clamping force during processing, ensuring processing accuracy and safety.

[0012] 2. This utility model is equipped with a rotating rod, a limiting block, a connecting rod, a vertical rod, a spring B, and a top block. The spring B applies elastic force to the connecting rod, causing it to move upward along the vertical rod and push the limiting block to remain extended, thereby limiting the clamping block and enhancing its stability. When the moving block moves to a specific position, the top block pushes the limiting block to rotate along the rotating rod and presses down the connecting rod to retract it into the moving block. Then, the clamping block can be rotated by the motor A to change the required clamping surface for clamping work. Attached Figure Description

[0013] Figure 1 This utility model provides an overall structural schematic diagram of a surface grinder fixture;

[0014] Figure 2 A rear view of a surface grinder fixture is provided for this utility model;

[0015] Figure 3 This utility model provides a schematic diagram of the clamping block portion of a surface grinder fixture;

[0016] Figure 4 This utility model provides a partial sectional view of the clamping block portion of a surface grinder fixture;

[0017] Figure 5 This utility model proposes a fixture for a surface grinder. Figure 4 Enlarged view of point A in the middle;

[0018] Figure 6 This utility model proposes a fixture for a surface grinder. Figure 4 Enlarged view at point B in the middle;

[0019] Figure 7 A partial schematic diagram of a surface grinder fixture is provided for this utility model.

[0020] Legend:

[0021] 1. Workbench; 2. Fixed block; 3. Hydraulic cylinder; 4. Moving block; 5. Motor A; 6. Rotating shaft; 7. Clamping block; 8. Limiting rod; 9. Limiting plate; 10. Spring A; 11. Rubber pad; 12. Fixed plate; 13. Motor B; 14. Screw A; 15. Slide rod A; 16. Moving frame; 17. Motor C; 18. Screw B; 19. Slide rod B; 20. Connecting block; 21. Motor D; 22. Grinding wheel; 23. Rotating rod; 24. Limiting block; 25. Connecting rod; 26. Upright pole; 27. Spring B; 28. Top block. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example 1

[0024] Please see Figure 1-5This utility model provides a technical solution: a surface grinder fixture, including a worktable 1, a fixing block 2 fixedly mounted on the side of the worktable 1, a hydraulic cylinder 3 fixedly connected to the surface of the fixing block 2, a moving block 4 fixedly connected to the output end of the hydraulic cylinder 3, a motor A5 fixedly connected to the lower surface of the moving block 4, a rotating shaft 6 fixedly connected to the output end of the motor A5, a clamping block 7 fixedly connected to one end of the rotating shaft 6, a limit rod 8 slidably connected inside the clamping block 7, a limit plate 9 fixedly connected to one end of the limit rod 8, a spring A10 fixedly connected to the surface of the limit plate 9, a rubber pad 11 slidably connected inside the clamping block 7, a fixing plate 12 fixedly connected to the surface of the worktable 1, a motor B13 fixedly connected to the surface of the fixing plate 12, a screw A14 fixedly connected to the output end of the motor B13, a sliding rod A15 fixedly connected inside the fixing plate 12, and a moving frame 16 threadedly connected to the surface of the screw A14. Here, the fixing block 2 is made of high-strength alloy steel and is firmly connected to the side of the worktable 1 by welding, capable of withstanding large loads. Under external force, the moving block 4, with its I-beam structure, can be stably locked within the groove inside the worktable 1. Motor A5 is a servo motor, fixed to the lower surface of the moving block 4 via a motor mount. The rotating shaft 6, made of high-hardness alloy, is rigidly connected to the output shaft of motor A5 via a coupling. The clamping block 7 is square with four differently shaped clamping surfaces, facilitating stable clamping of various workpieces. The limiting rod 8 is a cylindrical metal rod with anti-slip rubber on its end face. The limiting disc 9 is a circular metal disc with a diameter larger than the limiting rod 8. To limit the sliding stroke of the limiting rod 8, the rubber pad 11 has anti-slip textures on its surface, which increases the friction between the pad and the workpiece and prevents the workpiece from sliding during processing. A motor C17 is fixedly connected to the upper surface of the moving frame 16, and a screw B18 is fixedly connected to the output end of the motor C17. A slide rod B19 is fixedly connected inside the moving frame 16, and a connecting block 20 is slidably connected to the surface of the slide rod B19. A motor D21 is fixedly connected to the surface of the connecting block 20, and a grinding wheel 22 is fixedly connected to the output end of the motor D21. Here, the motor C17 drives the screw B18, which, in conjunction with the slide rod B19, guides the connecting block 20, enabling precise vertical lifting and lowering of the connecting block 20. This adjusts the distance between the grinding wheel 22 and the workpiece, meeting the needs of different processing depths. Motor D21 drives grinding wheel 22 to rotate at high speed. Combined with the horizontal movement of moving frame 16 and the vertical movement of connecting block 20, grinding wheel 22 can perform grinding on workpiece in multiple dimensions, which greatly improves the flexibility and efficiency of processing, while ensuring processing accuracy. The surface of moving block 4 is slidably connected to the inside of worktable 1, the surface of rotating shaft 6 is rotatably connected to the inside of moving block 4, and the surface of limiting disk 9 is slidably connected to the inside of clamping block 7.Here, the application of slide bar A15 makes the sliding of moving block 4 within worktable 1 more stable and precise. The smooth sliding of limit plate 9 within clamping block 7 ensures the normal operation of limit rod 8 and spring A10, achieving effective adjustment of workpiece clamping force. One end of spring A10 is fixedly connected to the interior of clamping block 7, the surface of screw A14 is rotatably connected to the interior of fixed plate 12, and the interior of moving frame 16 is slidably connected to the surface of slide bar A15. The firm fixation of spring A10 within clamping block 7 ensures stable operation during clamping force adjustment, preventing loosening or detachment and guaranteeing reliable workpiece clamping. The use of tapered roller bearings effectively supports screw A14, reducing wobbling and friction during screw A14 rotation and improving the accuracy and stability of motor B13 driving moving frame 16. The linear bearing makes the sliding frame 16 slide more smoothly on the slide bar A15, reduces motion resistance, improves the response speed and working efficiency of the equipment, and also ensures the accuracy of the horizontal movement of the sliding frame 16, providing a stable foundation for the machining of the grinding wheel 22. Example 2

[0025] Please see Figure 4 , Figure 6-7 The movable block 4 is fixedly connected to a rotating rod 23. A limit block 24 is rotatably connected to the surface of the rotating rod 23. The movable block 4 is fixedly connected to a vertical rod 26. A spring B27 is sleeved on the surface of the vertical rod 26. A connecting rod 25 is slidably connected to the surface of the vertical rod 26. A top block 28 is fixedly connected to the surface of the worktable 1. Here, the rotating rod 23 is fixed to a preset position inside the moving block 4 by welding, providing rotational support for the limiting block 24. The upright rod 26 is vertically fixed inside the moving block 4 by bolts to ensure connection strength. The spring B27 is a helical compression spring. The top block 28 is a block structure, fixed to the surface of the worktable 1 by bolts. Its position corresponds to the movement trajectory of the limiting block 24 and the connecting rod 25, which can push the limiting block 24. By rotating the rotating rod 23, combined with the cooperation of the spring B27 and the connecting rod 25, the clamping block 7 can be limited during the movement of the moving block 4. When the moving block 4 moves to a specific position, the top block 28 pushes the limiting block 24 to rotate, thereby pushing the connecting rod 25 to slide along the upright rod 26 to compress the spring B27, so that the clamping block 7 can be rotated and changed. The two ends of the spring B27 are fixedly connected to the inside of the moving block 4 and the surface of the connecting rod 25, respectively. The side of the connecting rod 25 is slidably connected to the inside of the moving block 4. Here, the secure connection at both ends of spring B27 ensures that it can stably exert its elastic effect and effectively compress and recover when subjected to external force. The application of the upright 26 in the guide groove makes the sliding of the connecting rod 25 more stable and precise.

[0026] Working principle: The hydraulic cylinder 3 is activated, and its output end pushes the moving block 4 to slide horizontally in the groove inside the worktable 1. Because the moving block 4 has an I-shaped structure, it is stably locked in the groove and can be precisely moved to a position convenient for clamping the workpiece. When the workpiece is placed on the worktable 1, the hydraulic cylinder 3 drives the moving block 4 to its initial position, causing the top block 28 to contact the limiting block 24, and pushing the limiting block 24 to rotate around the rotating rod 23. The limiting block 24 rotates and presses down on the connecting rod 25, causing it to slide along the upright 26 and compress the spring B27. The limiting block 24 retracts into the moving block 4, releasing the limiting effect on the clamping block 7. At this time, the clamping block 7 is a square clamping design with four different shaped faces. The appropriate clamping face is changed according to the shape of the workpiece. During the movement, the spring B27 applies a spring force to the connecting rod 25, causing it to move upward along the upright 26 and push the limiting block 24 to maintain its extended state, thus limiting the clamping block 7 and enhancing its stability. During the clamping process, the limiting rod 8 inside the clamping block 7, under the spring force of the spring A10, extends and abuts against the workpiece surface through the limitation plate 9. During continuous clamping, the limiting rod 8 retracts. The anti-slip rubber on the end face of the limiting rod 8 and the anti-slip texture on the surface of the rubber pad 11 work together to increase the friction with the workpiece. Simultaneously, spring A10 automatically adjusts the extension length and clamping force of the limit rod 8 according to the workpiece size, preventing workpiece deformation due to excessive clamping force and avoiding slippage due to insufficient clamping force, thus achieving stable clamping and positioning of the workpiece. After clamping and positioning, motor B13 starts, driving screw A14 to rotate. Since screw A14 is threadedly connected to moving frame 16, and moving frame 16 moves horizontally under the guidance of slide rod A15, it drives connecting block 20, motor D21, and grinding wheel 22 to move to the appropriate machining starting position. Next, motor C17 drives screw B18 to rotate, and under the guidance of slide rod B19, connecting block 20 moves vertically up and down along slide rod B19, precisely adjusting the distance between grinding wheel 22 and workpiece to meet different machining depth requirements. Subsequently, motor D21 drives grinding wheel 22 to rotate at high speed. Combined with the horizontal movement of moving frame 16 and the vertical movement of connecting block 20, grinding wheel 22 can perform grinding on workpiece in multiple dimensions, achieving efficient and precise surface grinding operation.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A surface grinder fixture, comprising a worktable (1), characterized in that: A fixing block (2) is fixedly installed on the side of the workbench (1). A hydraulic cylinder (3) is fixedly connected to the surface of the fixing block (2). A moving block (4) is fixedly connected to the output end of the hydraulic cylinder (3). A motor A (5) is fixedly connected to the lower surface of the moving block (4). A rotating shaft (6) is fixedly connected to the output end of the motor A (5). A clamping block (7) is fixedly connected to one end of the rotating shaft (6). A limit rod (8) is slidably connected inside the clamping block (7). A limit rod (8) is fixedly connected to one end of the limit rod (8). Positioning plate (9), the surface of the limiting plate (9) is fixedly connected to spring A (10), the inside of the clamping block (7) is slidably connected to rubber pad (11), the surface of the worktable (1) is fixedly connected to fixing plate (12), the surface of the fixing plate (12) is fixedly connected to motor B (13), the output end of motor B (13) is fixedly connected to screw A (14), the inside of the fixing plate (12) is fixedly connected to slide rod A (15), the surface of screw A (14) is threadedly connected to moving frame (16).

2. The surface grinder fixture according to claim 1, characterized in that: A motor C (17) is fixedly connected to the upper surface of the movable frame (16). A screw B (18) is fixedly connected to the output end of the motor C (17). A slide bar B (19) is fixedly connected inside the movable frame (16). A connecting block (20) is slidably connected to the surface of the slide bar B (19). A motor D (21) is fixedly connected to the surface of the connecting block (20). A grinding wheel (22) is fixedly connected to the output end of the motor D (21).

3. The surface grinder fixture according to claim 1, characterized in that: The surface of the moving block (4) is slidably connected to the interior of the worktable (1), the surface of the rotating shaft (6) is rotatably connected to the interior of the moving block (4), and the surface of the limiting disk (9) is slidably connected to the interior of the clamping block (7).

4. The surface grinder fixture according to claim 1, characterized in that: One end of the spring A (10) is fixedly connected to the inside of the clamping block (7), the surface of the screw A (14) is rotatably connected to the inside of the fixing plate (12), and the inside of the moving frame (16) is slidably connected to the surface of the slide bar A (15).

5. The surface grinder fixture according to claim 1, characterized in that: The moving block (4) is fixedly connected to a rotating rod (23), and a limit block (24) is rotatably connected to the surface of the rotating rod (23). The moving block (4) is fixedly connected to a vertical rod (26), and a spring B (27) is sleeved on the surface of the vertical rod (26). A connecting rod (25) is slidably connected to the surface of the vertical rod (26). A top block (28) is fixedly connected to the surface of the workbench (1).

6. The surface grinder fixture according to claim 5, characterized in that: The two ends of the spring B (27) are fixedly connected to the interior of the moving block (4) and the surface of the connecting rod (25), respectively, and the side of the connecting rod (25) is slidably connected to the interior of the moving block (4).

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