Grinding machine motion shaft structure

Abstract

The utility model discloses a grinding machine motion shaft structure which comprises a base, a flat guide rail, a concave-convex guide rail, a workbench, a speed reducer, a gear and a rack, a driving groove is formed in the middle of the top of the base in the moving direction, and the rack is arranged on one inner side face of the driving groove. An oil groove, a transition groove and a water groove are sequentially formed in the positions, on the two sides of the driving groove, of the base outwards at intervals, the top of the base and the two sides of the bottom of the workbench correspondingly slide through a flat guide rail and a concave-convex guide rail which are arranged in the oil groove, and a speed reducer is arranged in the middle of the bottom of the base with the driving end arranged downwards. The driving end of the speed reducer is provided with a gear which is in meshing transmission with the rack. The DLC coated steel-inlaid guide rail is simpler and more convenient to install and debug, standard rails can be manufactured in batches, the cost benefit is higher, and compared with traditional hard rail friction, the DLC coated steel-inlaid guide rail has longer friction life; and oil and liquid are separated, the cutting fluid is recycled, waste oil is recycled, and resources are fully utilized.

Description

Technical Field

[0001] The utility model relates to a grinding machine motion shaft structure. Background Art

[0002] The current grinder guide rails on the market are basically double V-rails, which are cast from a single piece. The surface of the V-rail is covered with wear-resistant leather or the guide rail surface is quenched to enhance its wear resistance.

[0003] However, this type of structure has the following defects:

[0004] 1. High-precision processing: The shape and size accuracy of the double V-rail are extremely high. Any slight error in the processing will affect its guiding and load-bearing capacity.

[0005] 2. Complex installation and debugging: The installation of double V-rails requires ensuring the parallelism and equal height between the two V-rails, as well as the accuracy of coordination with other components, the running span, and other factors. These factors are very difficult to control, and the debugging process is tedious and time-consuming. The maintenance cost is high and the rails are sensitive to lubrication conditions. If the lubrication is not appropriate, the guide rail surface is prone to rapid wear, and this wear is permanent, and the accuracy will deteriorate.

[0006] 3. Cutting water can easily contaminate the guide rail lubrication and affect the operation effect. Utility Model Content

[0007] The main technical problem solved by the utility model is to provide a grinding machine motion axis structure. The guide rail can be disassembled and the joint surface of the guide rail with the base and the workbench can be scraped to adjust the fitting accuracy. The installation and debugging are simpler, and standard rails can be produced in batches, which is more cost-effective. The DLC-coated steel guide rail has a longer friction life than the traditional hard rail friction. The DLC coating is not only wear-resistant but also can be dry rubbed, which solves the problem of rapid wear of the guide rail of the traditional grinding machine due to insufficient lubrication. The oil is separated and the cutting fluid is recycled, the waste oil can be recycled, and the resources are fully utilized.

[0008] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a grinding machine motion axis structure, including a base, a flat guide rail, a concave-convex guide rail, a workbench, a reducer, a gear and a rack. A driving groove is provided in the middle of the top of the base along the moving direction, and a rack is provided on an inner side surface of the driving groove. The base is provided with an oil groove, a transition groove and a water groove in sequence on both sides of the driving groove. The top of the base and the two sides of the bottom of the workbench are respectively slid by the flat guide rail and the concave-convex guide rail provided in the oil groove. A reducer is provided in the middle of the bottom of the base and the driving end is downwardly arranged. The driving end of the reducer is provided with a gear and a rack meshing transmission.

[0009] In a preferred embodiment of the present invention, the flat guide rail includes a first flat guide rail at the top and a second flat guide rail at the bottom, and the concave-convex guide rail includes a convex guide rail at the top and a concave guide rail at the bottom.

[0010] In a preferred embodiment of the present invention, both sides of the first flat guide rail and the convex guide rail are respectively fixed to the bottom of the workbench by guide rail pressing blocks through fixing screws, and both sides of the second flat guide rail and the concave guide rail are respectively fixed to the base by guide rail pressing blocks through fixing screws.

[0011] In a preferred embodiment of the present invention, the fitting surfaces of the first and second flat guide rails, and the fitting surfaces of the convex and concave guide rails are all coated with DLC.

[0012] In a preferred embodiment of the present invention, oil holes are provided on both the first flat guide rail and the convex guide rail.

[0013] In a preferred embodiment of the present invention, sheet metal water retaining plates that are continuously bent downward are provided on both sides of the top of the workbench to correspond to the water trough, and a plurality of partitions are provided at the lower part of the sheet metal water retaining plates to separate the water trough and the transition trough.

[0014] The beneficial effects of the utility model are as follows: the grinding machine motion axis structure pointed out by the utility model can adjust the matching accuracy by disassembling the guide rail and performing a scraping process on the joint surface between the guide rail, the base and the workbench, which makes installation and debugging simpler, and can produce standard rails in batches, which is more cost-effective; the DLC-coated steel guide rail has a longer friction life than the traditional hard rail friction; the DLC coating is not only wear-resistant but also can be dry rubbed, which solves the problem of rapid wear of the guide rail of the traditional grinding machine due to insufficient lubrication; the oil is separated, the cutting fluid is recycled, the waste oil can be recycled, and the resources are fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1 This is a structural diagram of a preferred embodiment of a grinding machine motion shaft structure of the utility model;

[0017] Figure 2 yes Figure 1 AA surface diagram;

[0018] Figure 3 yes Figure 2 A partial enlarged view of part B;

[0019] Figure 4 yes Figure 3 A partial schematic diagram of part C;

[0020] Figure 5 yes Figure 3 Partial side view of the convex guide rail. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 5 , the embodiments of the present utility model include:

[0023] A grinding machine motion axis structure comprises a base 1, a flat guide rail, a concave-convex guide rail, a workbench 2, a reducer 3, a gear 4 and a rack 5.

[0024] Among them, a driving groove 6 is provided in the middle of the top of the base 1 along the moving direction, and a rack 5 is provided on an inner side of the driving groove 6. A reducer 3 is provided in the middle of the bottom of the base 1 and the driving end is downwardly arranged. The driving end of the reducer 3 is provided with a gear 4 that meshes with the rack 5 for transmission. The reducer 3 is connected to the servo motor, and the servo motor is rotated forward and reversely to provide power to the grinding machine worktable 2, so that the worktable 2 moves on the base 1.

[0025] The base 1 is provided with an oil groove 7, a transition groove 8 and a water groove 9 in sequence and spaced outwards on both sides of the driving groove 6.

[0026] The top of the base 1 and the bottom of the workbench 2 slide correspondingly on both sides through flat guide rails and concave-convex guide rails arranged in the oil tank 7, wherein the flat guide rails include a first flat guide rail 10 at the top and a second flat guide rail 11 at the bottom, and the concave-convex guide rails include a convex guide rail 12 at the top and a concave guide rail 13 at the bottom.

[0027] The first flat guide rail 10 and the convex guide rail 12 are respectively locked on the bottom of the workbench 2 by the guide rail pressing blocks 14 through the fixing screws 15, and the second flat guide rail 11 and the concave guide rail 13 are respectively locked on the base 1 by the guide rail pressing blocks 14 through the fixing screws 15. When the workbench 2 is running, the first flat guide rail 10 and the second flat guide rail 11, and the convex guide rail 12 and the concave guide rail 13 slide against each other.

[0028] This structure is designed to be detachable. When it is found that the combination accuracy is poor, the flat guide rail and the concave-convex guide rail can be disassembled and the joint surfaces of the flat guide rail and the concave-convex guide rail with the base 1 and the workbench 2 can be scraped to adjust the matching accuracy, making installation and debugging easier.

[0029] The detachable structure design enables batch production of standard rails, which is more cost-effective.

[0030] From the overall structure, the concave and convex guide rails can guide the movement and support part of the load, and most of the load is borne by the flat guide rails. The structure is simpler than the double V-rails, the manufacturing and installation precision requirements are lower, and maintenance is easier.

[0031] The mating surfaces of the first and second flat guide rails 10 and 11, as well as the mating surfaces of the male and female guide rails 12 and 13, are all coated with a DLC coating 16. First, the guide rail surfaces of the base steel guide rails are quenched and each surface is finely machined. After the mounting surfaces of the base 1 and workbench 2 are finely ground, the steel guide rails are installed on the base 1 and workbench 2, and the guide rail surfaces are finely ground in an integrated manner. After grinding, the guide rail surfaces are polished. After polishing, the guide rails are marked for disassembly and then subjected to physical vapor deposition (DLC) coating 16 (diamond-like carbon). This thin film is deposited on the guide rail surfaces that are subject to friction and sliding. Compared with traditional hard rail friction, the DLC coating 16 steel guide rail has a longer friction life. The DLC material is not only wear-resistant but also can be dry rubbed, which solves the problem of rapid wear of the traditional grinder guide rail due to insufficient lubrication. Moreover, the guide rail with DLC coating 16 has better sliding effect after lubrication. Therefore, the first flat guide rail 10 and the convex guide rail 12 are both provided with oil holes 17. The friction guide surface is continuously lubricated by the oiler equipped with the machine tool to make it slide in the best state.

[0032] Physical vapor deposition: The workpiece to be coated is placed in a high vacuum chamber, and the film-forming material is vaporized by heating and deposited on the surface of the workpiece, thereby forming a thin film.

[0033] Its advantages are:

[0034] 1. High film purity: High vacuum environment reduces the mixing of impurities;

[0035] 2. Strong film adhesion: tightly bonded to the base material and not easy to peel off;

[0036] 3. The film thickness can be precisely controlled: by adjusting the process parameters, the film thickness can be precisely controlled;

[0037] 4. Low temperature process: has little thermal impact on the base material and is suitable for temperature-sensitive materials.

[0038] DLC coating has the characteristics of high hardness, low friction coefficient, good wear resistance, chemical inertness and thermal stability.

[0039] Advantages include:

[0040] 1. Significantly improve the wear resistance of the surface and extend the service life of components;

[0041] 2. Low friction coefficient can reduce friction loss between moving parts and improve energy efficiency;

[0042] 3. Good chemical inertness enables it to resist the corrosion of various chemicals;

[0043] 4. Good thermal stability, able to maintain stable performance in high temperature environment.

[0044] The top of the workbench 2 is provided with sheet metal baffles 18 that are bent downwards and correspond to the water trough 9, and the lower part of the sheet metal baffles 18 is provided with a plurality of partitions 19 that separate the water trough 9 and the transition trough 8. Figure 4 As shown by the arrows, the cutting fluid and grinding powder from the machining process are blocked by sheet metal water baffle 18 and directed to water tank 9. They are then returned to the water tank and filtered by the magnetic separator for solid-liquid separation. The oil used by the oiler to lubricate the guide rails overflows from the guide rail joints and enters oil tank 7, where it is then drained to the oil collection box. External cutting fluid and grinding powder splash into transition tank 8 at most and are prevented from entering oil tank 7. The heat generated by the internal friction of the guide rails can be dissipated externally through mechanical gaps or dissipated within drive tank 6.

[0045] In summary, the present invention discloses a grinding machine motion axis structure, which can adjust the fitting accuracy by disassembling the guide rail and performing a scraping process on the joint surface between the guide rail, the base and the worktable. The installation and debugging are simpler, and standard rails can be produced in batches, which is more cost-effective. The DLC-coated steel guide rail has a longer friction life than the traditional hard rail friction. The DLC coating is not only wear-resistant but also can be dry rubbed, which solves the problem of rapid wear of the guide rail of the traditional grinder due to insufficient lubrication. The oil is separated, the cutting fluid is recycled, the waste oil can be recycled, and the resources are fully utilized.

[0046] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grinding machine motion axis structure, characterized in that: It includes a base, a flat guide rail, a concave-convex guide rail, a workbench, a reducer, a gear and a rack. A driving groove is provided in the middle of the top of the base along the moving direction, and a rack is provided on an inner side of the driving groove. The base is provided with an oil groove, a transition groove and a water groove in sequence on both sides of the driving groove. The top of the base and the two sides of the bottom of the workbench slide correspondingly through the flat guide rail and the concave-convex guide rail provided in the oil groove respectively. A reducer is provided in the middle of the bottom of the base and the driving end is downwardly arranged. The driving end of the reducer is provided with a gear and a rack for meshing transmission.

2. The grinding machine motion axis structure according to claim 1, characterized in that: The flat guide rail includes a first flat guide rail at an upper portion and a second flat guide rail at a lower portion, and the concave-convex guide rail includes a convex guide rail at an upper portion and a concave guide rail at a lower portion.

3. The grinding machine motion axis structure according to claim 2, characterized in that: The first flat guide rail and the convex guide rail are respectively fixed to the bottom of the workbench by guide rail pressing blocks through fixing screws on both sides, and the second flat guide rail and the concave guide rail are respectively fixed to the base by guide rail pressing blocks through fixing screws on both sides.

4. The grinding machine motion axis structure according to claim 2, characterized in that: The mating surfaces of the first flat guide rail and the second flat guide rail, and the mating surfaces of the convex guide rail and the concave guide rail are all coated with DLC.

5. The grinding machine motion axis structure according to claim 2, characterized in that: Oil passage holes are arranged on the first flat guide rail and the convex guide rail.

6. The grinding machine motion axis structure according to claim 1, characterized in that: Both sides of the top of the workbench are respectively provided with sheet metal water retaining plates that are continuously bent downward and correspond to the water trough, and the lower part of the sheet metal water retaining plates is provided with multiple partitions that separate the water trough and the transition trough.

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