Feeding carriage of numerical control tool sharpener

Abstract

The utility model discloses a numerical control knife grinder feeding carriage, including carriage base, optical axis guide rail, screw rod, servo motor and feeding table, the number of optical axis guide rail is two, two optical axis guide rail are symmetrically fixed on carriage base, the screw rod and optical axis guide rail are arranged in the same direction, one end of the screw rod is connected with the output end of servo motor, and the other end of the screw rod is connected with the output end of servo motor. A guide rail groove in sliding connection with the optical axis guide rail is formed in the bottom of the feeding table, the feeding table is in threaded connection with the lead screw through a connecting block arranged at the bottom of the feeding table, the feeding table is provided with a sliding groove penetrating through the feeding table, the sliding groove and the optical axis guide rail are arranged in the same direction, and the feeding table is arranged outside the waterproof cover in a sleeving mode through the sliding groove and can slide relative to the waterproof cover. The waterproof cover is fixedly connected with the carriage base and can cover the carriage base, the optical axis guide rail, the lead screw and the servo motor. The feeding device has the advantages that the waterproof cover is ingeniously arranged, the waterproof purpose is achieved, meanwhile, transmission fit between the feeding table and the lead screw is not affected, the structure is simple, and practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control grinding, and more specifically, particularly relates to a feeding carriage of a numerical control knife grinder. Background Art

[0002] When processing workpieces, CNC tool grinders need to use a water spraying system to cool the grinding position of the workpiece to reduce the temperature of the workpiece. If the feed slide of the CNC tool grinder is sprayed with cooling water for a long time, it will affect the lubrication effect of the transmission parts of the feed slide and reduce the performance of the feed slide.

[0003] For example, the patent number applied for by our company is 202111115692.0, and the name of the invention is a Chinese invention patent for an adaptive multi-axis multifunctional CNC double-sided grinder, which includes a grinding base, a grinding mechanism, a feeding mechanism, a servo lifting mechanism and a fixing mechanism. The two grinding bases are symmetrically distributed, and a grinding mechanism is arranged on the grinding base. A feeding mechanism is arranged between the two grinding bases, and a servo lifting mechanism is fixed above the feeding mechanism. A fixing mechanism is arranged on the servo lifting mechanism. The grinding base includes a base, a turntable is arranged on the upper surface of the base, an adjustment base is arranged on the turntable, and a number of screws are symmetrically distributed on both sides of the adjustment base. Two symmetrically distributed fixed plates are fixed on the upper surface of the adjustment base, and a first motor is arranged on the outer side of the fixed plate. Two symmetrically distributed light rods are arranged between the two fixed plates, and a first lead screw is arranged between the two light rods. The first lead screw is rotatably connected to the fixed plate, and the output end of the first motor is fixedly connected to the first lead screw.

[0004] The feeding mechanism includes a feeding base arranged between the two bases, two symmetrically distributed slide rails are arranged on the upper surface of the feeding base, a feeding rod is fixedly connected to the slide rails, a second lead screw is arranged between the two feeding rods, a second motor is arranged at one end of the feeding base away from the base, the output end of the second motor is fixedly connected to the second lead screw, an end of the second lead screw away from the second motor is rotatably connected to an auxiliary auxiliary fixing block, the auxiliary fixing block is fixed to the upper surface of the feeding base, a second nut is threadedly connected to the second lead screw, and a feeding table is fixedly connected to the second nut; the servo lifting mechanism includes a transmission box fixed on the feeding table, a transmission cavity is opened inside the transmission box, a cover plate is arranged above the transmission cavity, a servo motor is arranged at one end of the upper surface of the cover plate away from the grinding base, the output end of the servo motor passes through the cover plate and is connected to a transmission belt assembly, the output end of the transmission belt assembly away from the servo motor is rotatably connected to the cover plate, a coupling is connected to a lifting threaded rod, a lifting sleeve is threadedly connected to the upper end of the lifting threaded rod, two auxiliary support sleeves are symmetrically distributed on both sides of the lifting sleeve, a lifting rod is slidably connected to the lower end of the auxiliary support sleeve, and the lifting rod is fixedly connected to the cover plate.

[0005] The feeding mechanism of the technical solution of the above invention patent lacks a waterproof device, and cooling water can easily splash onto the feeding rod and the second screw. After long-term use, the performance of the feeding mechanism will be reduced, and regular maintenance and lubricating oil addition are required, which has high maintenance costs. Summary of the invention

[0006] The invention object of the utility model is to solve the above-mentioned technical problems and aims to provide a feeding carriage for a CNC knife sharpener with good waterproof effect, low maintenance cost and stable performance.

[0007] The utility model is achieved through the following technical solutions.

[0008] The utility model provides a feeding carriage of a numerically controlled knife sharpening machine, comprising a carriage base, an optical axis guide rail, a lead screw, a servo motor and a feeding platform, wherein the number of the optical axis guide rails is two, and the two optical axis guide rails are symmetrically fixed on the carriage base, the lead screw is arranged in the same direction as the optical axis guide rail and one end of the lead screw is connected to the output end of the servo motor, a guide rail groove slidably connected to the optical axis guide rail is provided at the bottom of the feeding platform, the feeding platform is threadedly connected to the lead screw through a connecting block provided at the bottom of the feeding platform, and further comprises a waterproof cover, the feeding platform is provided with a slide groove which passes through the feeding platform, the slide groove is arranged in the same direction as the optical axis guide rail, the feeding platform is sleeved outside the waterproof cover via the slide groove and can slide relative to the waterproof cover, the waterproof cover is connected and fixed to the carriage base and is arranged to cover the carriage base, the optical axis guide rail, the lead screw and the servo motor.

[0009] In the above technical solution, the waterproof cover is arranged through the feeding platform, and the cooling water will not splash onto the carriage base, the optical axis guide rail, the lead screw and the servo motor. At the same time, the coordinated transmission between the lead screw and the feeding platform is not affected by the waterproof cover. Through the lead screw transmission, the feeding platform can slide relative to the waterproof cover to feed smoothly. The above structure is simple and has a good waterproof effect.

[0010] Preferably, the waterproof cover includes a top plate, a left side plate, a right side plate, a rear side plate and a front side plate, the top plate is arranged horizontally, the left side plate, the right side plate, the rear side plate and the front side plate are all perpendicular to the top plate and are respectively arranged on the left side, the right side, the rear side and the front side of the top plate, the rear ends of the left side plate and the right side plate are both connected to the rear side plate, and the front side plate is connected to the top plate, the left side plate and the right side plate by a detachable connection. In this technical solution, the waterproof cover can prevent cooling water from being sprinkled onto the optical axis guide rail, the lead screw and the servo motor in all directions, and has a good waterproof effect. At the same time, the front side plate is connected to the top plate, the left side plate and the right side plate by a detachable connection, which can facilitate the installation of the waterproof cover through the slide groove of the feeding table.

[0011] Preferably, the front end surfaces of the top plate, the left side plate and the right side plate are all provided with flanges, and the front side plate is connected to the flanges in a detachable connection manner. In this technical solution, by providing flanges on the front end surfaces of the top plate, the left side plate and the right side plate, it is convenient to connect and fix the front side plate to the top plate, the left side plate and the right side plate. At the same time, due to the setting of the flanges, the setting of the slide groove of the feeding platform needs to be able to allow the flange position to pass. After all parts are assembled, in the actual sliding process of the feeding platform relative to the waterproof cover, the inner wall of the slide groove does not contact the waterproof cover, which can avoid noise, and the feeding platform slides more smoothly relative to the waterproof cover.

[0012] Preferably, the front side plate is provided with a first connection hole, the front end surface of the optical axis guide rail is provided with a second connection hole matching the first connection hole, and the front side plate is connected and fixed to the optical axis guide rail by a first screw passing through the first connection hole and screwed into the second connection hole. In this technical solution, by providing the second connection hole on the front end surface of the optical axis guide rail, the waterproof cover is connected and fixed to the optical axis guide rail, thereby being fixed to the carriage base.

[0013] Preferably, two connecting columns are symmetrically arranged at the rear end of the carriage base, the lower ends of the connecting columns are connected and fixed to the carriage base, and the outer sides of the two connecting columns are respectively connected and fixed to the left and right plates of the waterproof cover. In this technical solution, the waterproof cover is fixed to the carriage base by connecting and fixing to the connecting columns.

[0014] Preferably, a third connecting hole is provided at the lower end of the connecting column, and the connecting column is connected and fixed to the carriage base by a second screw passing through the third connecting hole. A fourth connecting hole is provided on the outer side of the connecting column, and a fifth connecting hole is provided on the left and right plates of the waterproof cover at positions corresponding to the fourth connecting hole. The waterproof cover is connected and fixed to the connecting column by a third screw passing through the fifth connecting hole and screwed into the fourth connecting hole. In this technical solution, the connecting column is connected and fixed to the carriage base by the second screw, and the connecting column only needs to be arranged at a suitable position. The shape and size of the carriage base can be set more flexibly, which can save the manufacturing cost of the carriage base. The waterproof cover is connected and fixed to the connecting column by the third screw, and both fixing and disassembly are relatively convenient.

[0015] Preferably, the screw is connected to the output end of the servo motor through a transmission assembly, the transmission assembly includes a bearing box and a coupling, the bearing box is connected and fixed to the carriage base, the coupling is placed in the bearing box and connected to the end of the screw and the output end of the servo motor, and the servo motor is connected and fixed to the bearing box. In this technical solution, the coupling realizes the connection between the screw and the output end of the servo motor, and the bearing box realizes the fixation of the servo motor.

[0016] Preferably, the front part of the bearing box is provided with a screw gland, a bearing and a nut in sequence from front to back, the screw gland, the bearing and the nut are all mounted on the screw, the nut is threadedly connected to the screw, the bearing is placed in a bearing hole provided at the front part of the bearing box, the screw gland is connected and fixed to the bearing box and can cover the bearing hole. In this technical solution, the setting of the bearing can facilitate the rotation and fixation of the screw, and the nut and the screw gland can limit the bearing.

[0017] Preferably, the bearing is a radial thrust bearing.

[0018] Preferably, the coupling is a plum blossom coupling.

[0019] The advantage of the utility model is that by providing a waterproof cover, cooling water can be effectively prevented from splashing onto the optical axis guide rail, the lead screw and the servo motor, thereby extending the service life of the device and reducing maintenance costs. By providing a slide groove on the feeding platform for allowing the waterproof cover to pass through, the transmission coordination between the feeding platform and the lead screw is not affected while achieving the waterproof purpose. The structure is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the explosion decomposition structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the assembled overall structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model in which the feeding platform and the waterproof cover are omitted;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model with the waterproof cover omitted;

[0024] Figure 5 This is a schematic diagram of the structure of the utility model with the carriage base omitted;

[0025] Figure 6 This is a structural schematic diagram of the feeding platform of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the waterproof cover of the utility model with the front side plate omitted;

[0027] Figure 8 for Figure 3 A partial enlarged schematic diagram of part A;

[0028] Fig. 9 It is a structural schematic diagram of the transmission component of the utility model. DETAILED DESCRIPTION

[0029] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Example 1

[0033] like Figures 1 to 6 As shown, the utility model provides a feeding carriage of a CNC knife sharpening machine, comprising a carriage base 1, an optical axis guide rail 2, a lead screw 3, a servo motor 5 and a feeding platform 4, wherein the number of the optical axis guide rails 2 is two, and the two optical axis guide rails 2 are symmetrically fixed on the carriage base 1, the lead screw 3 is arranged between the two optical axis guide rails 2 and arranged in the same direction as the optical axis guide rails 2, and the rear end of the lead screw 3 is connected to the output end of the servo motor 5, and the bottom of the feeding platform 4 is provided with a guide rail groove 41 movably connected to the optical axis guide rail 2, and the feeding platform 4 is threadedly connected to the lead screw 3 through a connecting block 42 provided at the bottom thereof. It also includes a waterproof cover 6, the feed table 4 is provided with a slide groove 43 that passes through the feed table 4, the slide groove 43 is set to be in the same direction as the optical axis guide rail 2, the feed table 4 is sleeved outside the waterproof cover 6 through the slide groove 43 and can slide relative to the waterproof cover 6, the waterproof cover 6 is connected and fixed to the carriage base 1 and is set to cover the carriage base 1, the optical axis guide rail 2, the lead screw 3 and the servo motor 5. When the servo motor 5 drives the lead screw 2 to rotate forward or reverse, the connection block 42 at the bottom of the feed table 4 and the lead screw 3 are threadedly matched to advance or retreat along the lead screw 3, so that the feed table 4 can advance or retreat, and a workpiece fixture can be installed on the top of the feed table 4, and the workpiece is fixed on the workpiece fixture. As the feed table 4 advances or retreats, it can enter the head position of the CNC grinder for grinding, and can exit backward after grinding, realizing automated processing.

[0034] like Figure 7 As shown, in this embodiment, the waterproof cover 6 includes a top plate 61, a left side plate 62, a right side plate 63, a rear side plate 64 and a front side plate 7, the top plate 61 is arranged horizontally, the left side plate 62, the right side plate 63, the rear side plate 64 and the front side plate 7 are all perpendicular to the top plate 61 and are respectively arranged on the left side, right side, rear side and front side of the top plate 61, the rear ends of the left side plate 62 and the right side plate 63 are connected to the rear side plate 64, wherein the top plate 61, the left side plate 62, the right side plate 63 and the rear side plate 64 are integrally formed by stamping and welding of metal sheets, and the front side plate 7 is connected to the top plate 61, the left side plate 62 and the right side plate 63 by a detachable connection. When installing the waterproof cover, first pass the waterproof cover part except the front side plate 7 through the slide slot 43 of the feeding table 4 and then install the front side plate 7.

[0035] like Figure 7 As shown, as a further improvement, the front end surfaces of the top plate 61, the left side plate 62 and the right side plate 63 are all provided with flanges 65, which are bent inward relative to the top plate 61, the left side plate 62 and the right side plate 63 and are perpendicular to the top plate 61, the left side plate 62 and the right side plate 63, and the front side plate 7 is connected to the flanges by a detachable connection method, such as a buckle, a bolt connection, etc. By providing flanges on the front end surfaces of the top plate 61, the left side plate 62 and the right side plate 63, it is convenient to connect and fix the front side plate 7 with the top plate 61, the left side plate 62 and the right side plate 63. At the same time, due to the setting of the flanges 65, the setting of the chute 43 of the feeding platform 4 needs to be able to allow the flange 65 of the waterproof cover to pass through. After all parts are assembled, in the actual sliding process of the feeding platform 4 relative to the waterproof cover 6, the inner wall of the chute 43 does not contact the waterproof cover 6, so that noise can be avoided, and the feeding platform 4 slides more smoothly relative to the waterproof cover 6.

[0036] like Figure 1 As shown, as a further improvement, the front side plate 7 is provided with a first connecting hole 71, and the front end surface of the optical axis guide rail 2 is provided with a second connecting hole 21 matching the first connecting hole 71. The front side plate 7 is connected and fixed to the optical axis guide rail 2 by a first screw passing through the first connecting hole 71 and screwed into the second connecting hole 21. The front part of the waterproof cover 6 is connected and fixed to the optical axis guide rail 2, and the side and rear of the waterproof cover 6 are fixed to the appropriate position of the carriage base 1, so that the waterproof cover 6 can be connected and fixed to the carriage base 1 more firmly, so as to avoid vibration of the waterproof cover 6 during the operation of the device, which affects the operation of the device.

[0037] Example 2

[0038] The structure of this embodiment is similar to that of embodiment 1, except that Figures 1 to 3As shown, two connecting columns 10 are symmetrically provided at the rear end of the carriage base 1, the lower ends of the connecting columns 10 are connected and fixed to the carriage base 1, and the outer sides of the two connecting columns 10 are respectively connected and fixed to the left side plate 62 and the right side plate 63 of the waterproof cover 6.

[0039] like Figure 7 and Figure 8 As shown, as a further improvement, the lower end of the connecting column 10 is provided with a third connecting hole 101, and the connecting column 10 is connected and fixed to the carriage base 1 by a second screw passing through the third connecting hole 101. The outer side of the connecting column 10 is provided with a fourth connecting hole 102, and the left side plate 62 and the right side plate 63 of the waterproof cover 6 are both provided with a fifth connecting hole 66 at a position corresponding to the fourth connecting hole 102, and the waterproof cover 6 is connected and fixed to the connecting column 10 by a third screw passing through the fifth connecting hole 66 and screwed into the fourth connecting hole 102. The connecting column 10 is connected and fixed to the carriage base 1 by the second screw, and the connecting column 10 only needs to be arranged at a suitable position. The shape and size of the carriage base 1 are more flexible, which can save the manufacturing cost of the carriage base 1. The waterproof cover 6 is connected and fixed to the connecting column 10 by the third screw, and both fixing and disassembly are relatively convenient.

[0040] Example 3

[0041] The structure of this embodiment is similar to that of embodiment 2, except that Figure 3 and Fig. 9 As shown, the screw rod 3 is connected to the output end of the servo motor 5 through a transmission assembly, and the transmission assembly includes a bearing box 8 and a coupling 9. The bottom of the bearing box 8 is connected and fixed to the upper surface of the carriage base 1. The coupling 9 is placed in the bearing box 8 and connected to the end of the screw rod 3 and the output end of the servo motor 5. The servo motor 5 is connected and fixed to the bearing box 8. In this embodiment, the coupling 9 uses a plum blossom coupling.

[0042] like Fig. 9 As shown, as a further improvement, the front part of the bearing box 8 is provided with a screw gland 82, a bearing 83 and a nut 84 in sequence from front to back, the screw gland 82, the bearing 83 and the nut 84 are all sleeved on the screw 3, the nut 84 is threadedly connected with the screw, the bearing 83 is placed in the bearing hole 81 provided at the front part of the bearing box 8, and the screw gland 82 is connected and fixed to the bearing box 8 and covers the bearing hole 81. In this embodiment, the bearing 83 uses a radial thrust bearing, and the setting of the bearing 83 can facilitate the rotation and fixation of the screw 3, and the nut 84 and the screw gland 82 realize the limitation of the bearing 83.

[0043] The above are only specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using the concept of the present invention fall within the protection scope of the present invention.

Claims

1. A feeding carriage of a numerically controlled knife sharpening machine, comprising a carriage base (1), an optical axis guide rail (2), a lead screw (3), a servo motor (5) and a feeding platform (4), wherein the number of the optical axis guide rails (2) is two, and the two optical axis guide rails (2) are symmetrically fixed on the carriage base (1), the lead screw (3) and the optical axis guide rail (2) are arranged in the same direction and one end of the lead screw (3) is connected to the output end of the servo motor (5), the bottom of the feeding platform (4) is provided with a guide rail groove (41) slidably connected to the optical axis guide rail (2), and the feeding platform (4) is threadedly connected to the lead screw (3) through a connecting block (42) provided at the bottom thereof, characterized in that: The invention also comprises a waterproof cover (6), the feeding platform (4) is provided with a slide groove (43) penetrating the feeding platform (4), the slide groove (43) is arranged to be in the same direction as the optical axis guide rail (2), the feeding platform (4) is sleeved outside the waterproof cover (6) through the slide groove (43) and can slide relative to the waterproof cover (6), the waterproof cover (6) is connected and fixed to the carriage base (1) and is arranged to cover the carriage base (1), the optical axis guide rail (2), the screw rod (3) and the servo motor (5).

2. The feeding carriage of the CNC knife sharpening machine according to claim 1, characterized in that: The waterproof cover (6) comprises a top plate (61), a left side plate (62), a right side plate (63), a rear side plate (64) and a front side plate (7); the top plate (61) is arranged horizontally; the left side plate (62), the right side plate (63), the rear side plate (64) and the front side plate (7) are all perpendicular to the top plate (61) and are respectively arranged on the left side, right side, rear side and front side of the top plate (61); the rear ends of the left side plate (62) and the right side plate (63) are connected to the rear side plate (64); and the front side plate (7) is connected to the top plate (61), the left side plate (62) and the right side plate (63) in a detachable connection manner.

3. The feeding carriage of the CNC knife sharpening machine according to claim 2, characterized in that: The front end surfaces of the top plate (61), the left side plate (62) and the right side plate (63) are all provided with flanges (65), and the front side plate (7) is connected to the flanges (65) in a detachable connection manner.

4. The feeding carriage of the CNC knife sharpening machine according to claim 3, characterized in that: The front side plate (7) is provided with a first connection hole (71), the front end surface of the optical axis guide rail (2) is provided with a second connection hole (21) matching the first connection hole (71), and the front side plate (7) is connected and fixed to the optical axis guide rail (2) by a first screw passing through the first connection hole (71) and screwed into the second connection hole (21).

5. The feeding carriage of the CNC knife sharpening machine according to claim 2, characterized in that: Two connecting columns (10) are symmetrically arranged at the rear end of the carriage base (1), the lower ends of the connecting columns (10) are connected and fixed to the carriage base (1), and the outer side surfaces of the two connecting columns (10) are respectively connected and fixed to the left side plate (62) and the right side plate (63) of the waterproof cover (6).

6. The feeding carriage of the CNC knife sharpening machine according to claim 5, characterized in that: A third connecting hole (101) is provided at the lower end of the connecting column (10); the connecting column (10) is connected and fixed to the carriage base (1) by a second screw passing through the third connecting hole (101); a fourth connecting hole (102) is provided on the outer side surface of the connecting column (10); a fifth connecting hole (66) is provided on the left side plate (62) and the right side plate (63) of the waterproof cover (6) at a position corresponding to the fourth connecting hole (102); the waterproof cover (6) is connected and fixed to the connecting column (10) by a third screw passing through the fifth connecting hole (66) and screwed into the fourth connecting hole (102).

7. The feeding carriage of the CNC knife sharpening machine according to any one of claims 1 to 6, characterized in that: The screw rod (3) is connected to the output end of the servo motor (5) through a transmission assembly, the transmission assembly comprising a bearing box (8) and a coupling (9), the bearing box (8) is connected and fixed to the carriage base (1), the coupling (9) is placed in the bearing box (8) and connected to the end of the screw rod (3) and the output end of the servo motor (5), and the servo motor (5) is connected and fixed to the bearing box (8).

8. The feeding carriage of the CNC knife sharpening machine according to claim 7, characterized in that: The front part of the bearing box (8) is provided with a screw cover (82), a bearing (83) and a nut (84) in sequence from front to back. The screw cover (82), the bearing (83) and the nut (84) are all mounted on the screw (3). The nut (84) is threadedly connected to the screw (3). The bearing (83) is placed in a bearing hole (81) provided at the front part of the bearing box (8). The screw cover (82) is fixedly connected to the bearing box (8) and can cover the bearing hole (81).

9. The feeding carriage of the CNC knife sharpening machine according to claim 8, characterized in that: The bearing (83) is a radial thrust bearing.

10. The feeding carriage of the CNC knife sharpening machine according to claim 7, characterized in that: The coupling (9) is a plum blossom coupling.

Images