Numerical control gantry guide rail grinding machine

Abstract

The utility model relates to the field of grinding machines, and discloses a numerical control gantry guide rail grinding machine which comprises a working table, a plurality of rails are fixedly connected to the top of the working table, a movable clamping plate is arranged at the top of the working table, a plurality of guide wheels are rotationally connected to the bottom of the movable clamping plate, and the guide wheels are distributed in a rectangular shape and are in sliding fit with the rails. A first lead screw is rotationally connected between the front side and the rear side of the top of the workbench, a first motor is fixedly installed on the front side of the top of the workbench, the front end of an output shaft of the first motor is fixedly connected with the rear end of the first lead screw, a connecting block is fixedly connected to the bottom of the movable clamping plate, and the connecting block is in threaded fit with the first lead screw. The top of the workbench is fixedly connected with a portal frame. The rough grinding wheel and the fine grinding wheel are sequentially used for grinding, machining efficiency can be remarkably improved, meanwhile, machining quality is guaranteed, most of materials are rapidly removed in the rough machining stage, and improvement of surface smoothness and precision is emphasized in the finish machining stage.

Description

Technical Field

[0001] This utility model relates to the field of grinding machines, specifically a CNC gantry guideway grinding machine. Background Technology

[0002] As one of the key pieces of equipment in the field of machining, the performance of guideway grinding machines directly affects the processing quality and production efficiency of products. With the widespread application of CNC technology, guideway grinding machines have gradually achieved automated and digital control, and the processing accuracy and efficiency have been significantly improved.

[0003] However, different workpieces have different requirements for processing methods. Some require rough machining to remove most of the material, while others require fine machining to improve the surface finish. Therefore, CNC gantry guideway grinding machines need to have multiple processing methods to meet the processing needs of different workpieces. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a CNC gantry guideway grinding machine.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A CNC gantry grinding machine includes a worktable. Several tracks are fixedly connected to the top of the worktable, symmetrically distributed left and right. A movable clamping plate is located on the top of the worktable. Several guide wheels, arranged in a rectangular pattern, are rotatably connected to the bottom of the movable clamping plate and slide in contact with the tracks. Clamps are installed at the four corners of the top of the movable clamping plate. A lead screw is rotatably connected between the front and rear sides of the top of the worktable. A motor is fixedly installed on the front side of the top of the worktable, with the front end of the motor's output shaft fixedly connected to the rear end of the lead screw. A connecting block is fixedly connected to the bottom of the movable clamping plate. The connecting block and the lead screw are threaded together. A gantry frame is fixedly connected to the top of the worktable. The gantry frame is located outside the movable clamping plate. A left and right moving mechanism is fixedly installed between the left and right inner walls of the gantry frame. Cylinders are connected to the front and rear sides of the left and right moving mechanism respectively. A fixed frame is fixedly connected to the bottom of the output shaft of the cylinder. A coarse grinding wheel and a fine grinding wheel are rotatably connected to the inner walls of the two fixed frames respectively. The coarse grinding wheel is located below the front cylinder. A motor is fixedly installed on the right side wall of both fixed frames. The output shafts of the two motors are fixedly connected to the coarse grinding wheel and the fine grinding wheel respectively.

[0007] The left and right moving mechanism includes a mounting base, which is fixedly connected between the left and right inner walls of the gantry. The front wall of the mounting base has two vertically distributed sliding grooves. A lead screw is rotatably connected between the left and right inner walls of the sliding grooves. Two motors are fixedly mounted on the left side wall of the mounting base. The output shafts of the two motors are fixedly connected to the left ends of the two lead screws, respectively. Two cylinders are located on the front and rear sides of the mounting base. Moving blocks are fixedly connected to the opposite side walls of the two cylinders. The two moving blocks are respectively inserted into the two sliding grooves. Rollers are rotatably connected to the top and bottom of the moving blocks at the end of the sliding blocks located in the sliding grooves. The rollers slide in cooperation with the sliding grooves.

[0008] The fixture includes a slider, which slides into contact with the top of a movable clamping plate. A stud is vertically fixed to the top of the slider, and a pressure plate is fitted onto the outer wall of the stud. The pressure plate and the stud are in clearance fit. A nut is threaded onto the top of the outer wall of the stud, and the bottom of the nut abuts against the top of the pressure plate.

[0009] The beneficial effects of this utility model are:

[0010] This invention employs a method of sequential grinding with coarse and fine grinding wheels, which significantly improves processing efficiency while ensuring processing quality. The roughing stage quickly removes most of the material, while the finishing stage focuses on improving surface smoothness and precision. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 yes Figure 1 A schematic diagram of the structure from the right side perspective;

[0013] Figure 3 This is a schematic diagram of the structure of this utility model from another perspective;

[0014] Figure 4 yes Figure 1 Front view of

[0015] Figure 5 yes Figure 4 Cross-sectional view at point AA;

[0016] Figure 6 yes Figure 1 The right view;

[0017] Figure 7 yes Figure 6 Cross-sectional view at point BB;

[0018] Figure 8 This is a schematic diagram of the structure of the fixture of this utility model.

[0019] The reference numerals in all the attached drawings are as follows: 1. Workbench; 2. Track; 3. Moving clamp; 4. Guide wheel; 5. Fixture; 6. Lead screw one; 7. Motor one; 8. Connecting block; 9. Gantry frame; 10. Mounting base; 11. Slide groove; 12. Lead screw two; 13. Motor two; 14. Cylinder; 15. Moving block; 16. Roller; 17. Fixed frame; 18. Coarse grinding wheel; 19. Fine grinding wheel; 20. Motor three; 51. Slider; 52. Stud; 53. Pressure plate; 54. Nut. Detailed Implementation

[0020] like Figure 1-8 As shown: A CNC gantry grinding machine includes a worktable 1. Several tracks 2 are fixedly connected to the top of the worktable 1, symmetrically distributed left and right. A movable clamping plate 3 is located on the top of the worktable 1. Several guide wheels 4 are rotatably connected to the bottom of the movable clamping plate 3, arranged in a rectangular shape. The guide wheels 4 slide with the tracks 2. Clamps 5 are installed at the four corners of the top of the movable clamping plate 3. A lead screw 6 is rotatably connected between the front and rear sides of the top of the worktable 1. A motor 7 is fixedly installed on the front side of the top of the worktable 1. The front end of the output shaft of the motor 7 is fixedly connected to the rear end of the lead screw 6. A connecting block 8 is fixedly connected to the bottom of the movable clamping plate 3. With the lead screw 6 threaded together, a gantry 9 is fixedly connected to the top of the worktable 1. The gantry 9 is located outside the movable clamping plate 3. A left and right moving mechanism is fixedly installed between the left and right inner side walls of the gantry 9. A cylinder 14 is connected to the front and rear sides of the left and right moving mechanism respectively. A fixed frame 17 is fixedly connected to the bottom end of the output shaft of the cylinder 14. A coarse grinding wheel 18 and a fine grinding wheel 19 are rotatably connected to the inner side walls of the two fixed frames 17 respectively. The coarse grinding wheel 18 is located below the front cylinder 14. A motor 20 is fixedly installed on the right side wall of both fixed frames 17. The output shafts of the two motors 20 are fixedly connected to the coarse grinding wheel 18 and the fine grinding wheel 19 respectively.

[0021] The left and right moving mechanism includes a mounting base 10, which is fixedly connected between the left and right inner walls of the gantry 9. The front wall of the mounting base 10 has two vertically distributed sliding grooves 11. A lead screw 12 is rotatably connected between the left and right inner walls of the sliding grooves 11. Two motors 13 are fixedly installed on the left side wall of the mounting base 10. The output shafts of the two motors 13 are fixedly connected to the left ends of the two lead screws 12 respectively. Two cylinders 14 are located on the front and rear sides of the mounting base 10. Moving blocks 15 are fixedly connected to the opposite side walls of the two cylinders 14. The two moving blocks 15 are respectively inserted into the two sliding grooves 11. Rollers 16 are rotatably connected to the top and bottom of the moving block 15 located in the sliding groove 11. The rollers 16 slide in cooperation with the sliding groove 11.

[0022] The clamp 5 includes a slider 51, which slides in contact with the top of the movable clamping plate 3. A stud 52 is vertically fixed to the top of the slider 51. A pressure plate 53 is sleeved on the outer wall of the stud 52. The pressure plate 53 and the stud 52 are in clearance fit. A nut 54 is threaded to the top of the outer wall of the stud 52. The bottom of the nut 54 abuts against the top of the pressure plate 53.

[0023] Before the CNC gantry grinding machine is started, the moving clamp 3 is in its initial position on the track 2 via the guide wheel 4 at its bottom. The fixture 5 is adjusted according to the size and position of the workpiece to be processed to ensure that the workpiece is firmly clamped. The coarse grinding wheel 18 and the fine grinding wheel 19 are respectively installed at the bottom end of the output shaft of the cylinder 14 via the fixed frame 17 and are in the initial position of the left and right moving mechanism of the gantry frame 9.

[0024] The workpiece to be processed is placed on the worktable 1 and precisely clamped by the clamp 5 on the top of the movable clamping plate 3 to ensure that the workpiece does not move or shake during the processing.

[0025] Start motor 7 to drive lead screw 6 to rotate, which in turn drives the moving clamp 3 and the workpiece on it to move horizontally along track 2 via connecting block 8. At the same time, start cylinder 14 located at the front to push the coarse grinding wheel 18 down to the workpiece surface and start the rough machining process. At this time, motor 20 starts to drive coarse grinding wheel 18 to rotate and perform preliminary grinding on the workpiece to remove most of the burrs and uneven parts.

[0026] During or after rough machining, depending on the machining requirements, two motors 13 are started to drive two lead screws 12 to rotate. Through the sliding engagement of roller 16 and slide groove 11, two cylinders 14 and the grinding wheels (coarse grinding wheel 18 or fine grinding wheel 19) below them can move in the left and right directions of the mounting base 10 to achieve machining of different positions of the workpiece.

[0027] After rough machining is completed, cylinder 14 adjusts its position so that fine grinding wheel 19 descends to the surface of the workpiece and begins fine machining. Driven by motor 20, fine grinding wheel 19 rotates to perform more detailed grinding on the workpiece, further improving the surface finish and precision of the workpiece.

[0028] After roughing and finishing, the workpiece achieves the expected machining quality. At this point, all motors and cylinders are shut down, and the workpiece is removed from fixture 5, completing the entire machining process. This utility model only protects the mechanical parts; functions implemented through software control are not within the scope of protection of this utility model.

Claims

1. A CNC gantry guideway grinding machine, characterized in that, The system includes a workbench (1), with several tracks (2) fixedly connected to the top of the workbench (1). The tracks (2) are symmetrically distributed on the left and right sides. The top of the workbench (1) has a movable clamp (3). Several guide wheels (4) are rotatably connected to the bottom of the movable clamp (3). The guide wheels (4) are rectangularly distributed and slide with the tracks (2). Clamps (5) are installed at the four corners of the top of the movable clamp (3). A lead screw (6) is rotatably connected between the front and rear sides of the top of the workbench (1). A motor (7) is fixedly installed on the front side of the top of the workbench (1). The front end of the output shaft of the motor (7) is fixedly connected to the rear end of the lead screw (6). A connecting block (8) is fixedly connected to the bottom of the movable clamp (3). The connecting block (8) is connected to the lead screw. (6) Threaded connection, the top of the workbench (1) is fixedly connected to the gantry (9), the gantry (9) is located outside the movable clamp (3), the left and right moving mechanism is fixedly installed between the left and right inner walls of the gantry (9), the front and rear sides of the left and right moving mechanism are respectively connected to the cylinder (14), the bottom end of the output shaft of the cylinder (14) is fixedly connected to the fixed frame (17), the inner walls of the two fixed frames (17) are respectively rotatably connected to the coarse grinding wheel (18) and the fine grinding wheel (19), the coarse grinding wheel (18) is located below the front cylinder (14), the right side walls of the two fixed frames (17) are fixedly installed with the motor three (20), the output shafts of the two motor three (20) are respectively fixedly connected to the coarse grinding wheel (18) and the fine grinding wheel (19).

2. The CNC gantry guideway grinding machine according to claim 1, characterized in that, The left and right moving mechanism includes a mounting base (10), which is fixedly connected between the left and right inner walls of the gantry frame (9). The front wall of the mounting base (10) has two vertically distributed sliding grooves (11). The left and right inner walls of the sliding grooves (11) are rotatably connected to a second lead screw (12). The left side wall of the mounting base (10) is fixedly mounted with two second motors (13). The output shafts of the two second motors (13) are fixedly connected to the left ends of the two second lead screws (12). Two cylinders (14) are located on the front and rear sides of the mounting base (10). The opposite side walls of the two cylinders (14) are fixedly connected with moving blocks (15). The two moving blocks (15) are respectively inserted into the two sliding grooves (11). The top and bottom of one end of the moving block (15) located in the sliding groove (11) are rotatably connected with rollers (16). The rollers (16) slide with the sliding groove (11).

3. A CNC gantry guideway grinding machine according to claim 1, characterized in that, The fixture (5) includes a slider (51), which slides with the top of the movable clamping plate (3). A stud (52) is vertically fixed to the top of the slider (51). A pressure plate (53) is sleeved on the outer wall of the stud (52). The pressure plate (53) and the stud (52) are in clearance fit. A nut (54) is threaded to the top of the outer wall of the stud (52). The bottom of the nut (54) abuts against the top of the pressure plate (53).

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