Feeding driving mechanism of double-sided grinding machine

Abstract

The utility model provides a feeding driving mechanism of a double-sided grinding machine, which relates to the field of grinding machines and comprises two connecting plates connected to a rack, a feeding channel extending back and forth along the rack is formed between the two connecting plates, and grooves communicated to the feeding channel are formed in the outer walls of the front ends of the two connecting plates; feeding wheels are arranged at the front end of the rack and located on the sides, deviating from the feeding channel, of the two connecting plates correspondingly, and the two feeding wheels are at least partially contained in the groove and protrude out of the inner side walls of the two connecting plates. Movable plates capable of moving leftwards and rightwards and drivers used for driving the movable plates to move are arranged on the portions, located on the two sides of the feeding channel, of a top plate at the front end of the rack correspondingly, the two feeding wheels are arranged on the two movable plates correspondingly, and driving assemblies used for driving the feeding wheels to rotate are arranged on the two movable plates correspondingly. The feeding driving mechanism of the double-sided grinding machine is simple in structure and convenient to disassemble and assemble, the top plate of the rack is not damaged in the installation process, and the hidden danger of water leakage in the later period is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machine auxiliary mechanisms, in particular to a double-sided grinding machine feeding drive mechanism. Background Art

[0002] A grinder (grinding machine) is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding, while a few use other grinding tools such as oilstones, abrasive belts, and free abrasives for processing, such as honing machines, superfinishing machines, belt grinders, grinders, and polishers.

[0003] Magnetic steel is mainly used in various fields such as sensors, instruments, electronics, electromechanics, medical treatment, teaching, automobiles, aviation, military technology, etc. The magnetic properties and uses of magnetic steel vary according to the metal composition of the magnetic steel. At present, magnetic steel is manufactured by powder metallurgy. The surface roughness of products made by powder metallurgy often does not meet the requirements, so it is necessary to grind the outer surface through a grinding device.

[0004] At present, some conventional grinding machine structures usually have a feeding mechanism for transporting workpieces and end face grinding wheels arranged on both sides of the feeding mechanism. The workpiece moves sequentially on the guide rail. When the workpiece moves between the two end face grinding wheels, the grinding wheels on both sides of the guide rail grind the two end faces of the workpiece, thereby realizing the grinding of the workpiece continuously fed in the guide rail.

[0005] For example, the patent CN213258883U discloses a feeding mechanism for an end grinder, in which a driving mechanism for driving the two feed wheels to rotate is arranged at the lower end of the frame, and the first gear shaft in the intermediate structure needs to pass through the top plate of the frame to be connected with the gear transmission assembly of the feed wheel. This structure requires drilling holes in the top plate of the frame, which may cause water leakage in the later stage; in addition, the prior art driving mechanism disclosed in the patent has a complex structure, many parts, and many parts are in the chamber at the lower end of the frame, with limited operating space, which makes disassembly and assembly and later maintenance difficult. Utility Model Content

[0006] In order to overcome at least one defect in the above prior art, the utility model provides a double-sided grinder feed drive mechanism, which has a simple structure and is easy to disassemble and assemble. The top plate of the frame is not damaged during the installation process, thus avoiding the risk of water leakage in the later stage.

[0007] The utility model provides a feeding drive mechanism for a double-sided grinder, comprising two connecting plates connected to a frame and located between two grinding discs, and the two connecting plates extend along the front-rear direction of the frame, a feeding channel is formed between the two connecting plates, and grooves connected to the feeding channel are provided on the outer walls at the front ends of the two connecting plates; feed wheels are provided at the front end of the frame and respectively located on one side of the two connecting plates away from the feeding channel, and the two feed wheels are at least partially accommodated in the grooves and protrude from the inner side walls of the two connecting plates; movable plates that can move left and right and a driver for driving the movable plates to move are respectively provided on the top plate at the front end of the frame and located on both sides of the feed channel, the two feed wheels are respectively provided on the two movable plates, and the two movable plates are respectively provided with driving components for driving the feed wheels to rotate.

[0008] Compared with the prior art, the double-sided grinder feed drive mechanism of the utility model has the following advantages:

[0009] Compared with the prior art in which the driving mechanism is arranged in a chamber at the lower end of the frame, in the utility model, two driving components for respectively driving the two feed wheels to rotate are directly arranged on the upper part of the top plate of the frame, that is, no holes are required on the top plate of the frame, so there will be no hidden danger of water leakage in the later stage; in addition, movable plates that can move in the left and right directions are respectively arranged on both sides of the feed channel on the top plate of the frame, and the two feed wheels are respectively connected to the two movable plates, and the distance between the two feed wheels can be adjusted by adjusting the position of the movable plates, so as to be suitable for driving workpieces of different widths and improve versatility; in this structure, the driving component is directly arranged above the top plate of the frame, which is convenient for installation and later maintenance.

[0010] Furthermore, the driving assembly includes a motor, a gearbox and a power shaft connected to the movable plate, the power input end of the gearbox is connected to the output shaft of the motor, the power shaft is vertically connected to the power output end of the gearbox, and the feed wheel is connected to the outside of the upper end of the power shaft.

[0011] As a further improvement, a fixing sleeve is sleeved on the upper end of the power shaft, a positioning ring is protrudingly provided on the outer peripheral wall of the lower end of the fixing sleeve, the feed wheel is sleeved on the outside of the fixing sleeve, and the feed wheel is fixed to the positioning ring by a plurality of vertically arranged bolts.

[0012] Further improvement, the upper end of the gear box is connected to an upper fixed plate, the upper fixed plate is sleeved on the outside of the power shaft, and an upper bearing is installed between the inner hole wall of the upper fixed plate and the outer wall of the power shaft; an annular positioning groove is provided on the upper end surface of the upper fixed plate, and an annular positioning protrusion is provided on the lower end surface of the fixed sleeve, and the lower end of the positioning protrusion is rotatably fitted into the positioning groove along the circumferential direction; the upper end surface of the upper fixed plate is also provided with a plurality of drainage channels, one end of each drainage channel extends to the positioning groove, and the other end extends radially to the outer edge of the upper fixed plate. In the above-mentioned improved structure, the positioning groove, the positioning protrusion and the drainage groove are mainly provided to play a waterproof role, so as to prevent the accumulated water on the workpiece from entering the bearing and affecting its service life.

[0013] In a further improvement, the lower end of the gear box is connected to a lower fixing plate, and the lower fixing plate is connected to the movable plate, the lower end of the power shaft is passed through the lower fixing plate, and a lower bearing is installed between the inner hole of the lower fixing plate and the outer wall of the power shaft. In the above improved structure, the lower bearing cooperates with the upper bearing to make the power shaft rotate flexibly without up and down deflection, thereby ensuring the smooth and stable rotation of the feed wheel, and then driving the workpiece to move stably in the re-feeding channel.

[0014] In a further improvement, the upper end of the slide plate is connected to a mounting flange, and the lower fixing plate is detachably connected to the mounting flange; a through hole is provided in the middle of the mounting flange, and the lower end of the power shaft extends to the through hole, and a limiting assembly for axially limiting the power shaft is provided at the lower end of the power shaft, and the limiting assembly is accommodated in the through hole. In the above improved structure, the mounting flange is added to facilitate the connection and fixation of the gear box, and in order to ensure the axial stability of the power shaft, it is locked by the limiting assembly.

[0015] In a further improvement, the limit assembly includes a gasket, a plane bearing and a locking nut which are arranged from top to bottom and axially abut against each other. In the above improved structure, the locking nut realizes axial abutment locking, the gasket structure increases the locking stability, and after the plane bearing is arranged, the power shaft can realize axial abutment and limit while also being able to rotate axially.

[0016] Other improved features and advantages of the utility model will be described in the subsequent specific embodiments, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be achieved and obtained through the structures specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the double-sided grinder feed drive mechanism of the utility model applied to the grinder;

[0018] Figure 2 It is a partial cross-sectional view of the feeding drive mechanism of the double-sided grinder in the utility model;

[0019] Figure 3 for Figure 2 The X in the figure is a magnified structural diagram;

[0020] Figure 4 for Figure 2 Enlarge the structure diagram at Y in the figure.

[0021] Description of reference numerals:

[0022] 1. Frame; 2. Connecting plate; 3. Feed channel; 4. Groove; 5. Feed wheel; 6. Movable plate; 7. Motor; 8. Gear box; 9. Power shaft; 10. Fixed sleeve; 11. Positioning ring; 12. Upper fixed plate; 13. Upper bearing; 14. Positioning groove; 15. Positioning bump; 16. Drainage channel; 17. Lower fixed plate; 18. Lower bearing; 19. Mounting flange; 20. Avoidance hole; 21. Gasket; 22. Plane bearing; 23. Locking nut. DETAILED DESCRIPTION

[0023] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0025] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "front and back", "left and right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See also Figures 1 to 4As shown, the embodiment of the present application discloses a double-sided grinder feed drive mechanism, including two connecting plates 2 connected to a frame 1 and located between two grinding discs, and the two connecting plates 2 extend along the front-rear direction of the frame 1, and a feed channel 3 is formed between the two connecting plates 2. In actual application, a support plate and a material abutment plate which are arranged at intervals up and down and extend along the length direction thereof are also arranged between the two connecting plates 2. The workpiece is slidably transported along the upper surface of the support plate, the material abutment plate limits the upper end surface of the workpiece, and the left and right sides of the workpiece are limited between the side walls of the two connecting plates 2. In addition, grooves 4 connected to the feed channel 3 are provided on the outer walls at the front ends of the two connecting plates 2; feed wheels 5 are provided at the front end of the frame 1 and are respectively located on the side of the two connecting plates 2 away from the feed channel 3. The two feed wheels 5 are at least partially accommodated in the grooves 4, and the radial outer walls of the feed wheels 5 protrude from the inner side walls of the two connecting plates 2, so that the feed wheels 5 on both sides are respectively in contact with the two side walls of the workpiece. The feed wheels 5 are generally made of rubber. When the two feed wheels 5 rotate in opposite directions, the workpiece moves backward along the feed channel 3 under the action of friction.

[0028] On the top plate at the front end of the frame 1, movable plates 6 that can move left and right and a driver for driving the movable plates 6 to move are respectively arranged on both sides of the feed channel 3. The two feed wheels 5 are respectively arranged on the two movable plates 6, and the two movable plates 6 are respectively provided with drive components for driving the feed wheels 5 to rotate.

[0029] As a preferred structure, the movable plate 6 and the drive structure directly use the existing dovetail slot slide, the slide of the dovetail slot slide is the movable plate 6, and the drive can be a manual hand wheel or an electric motor 7 assembly. Figure 1 , dovetail groove slides are provided on both sides of the feed channel 3, and in this embodiment, the dovetail groove slide on the left side is a handwheel drive structure, and the dovetail groove slide on the right side is a motor 7 drive structure, so that the design saves costs on the one hand; in addition, in actual use, the dovetail groove slide on the left side is generally used as a reference, that is, when the size of the workpiece is different, the feed wheel 5 on the left side does not move, and only the slide position of the dovetail groove slide on the right side needs to be adjusted to achieve the corresponding feed wheel 5 position movement. Of course, in some other embodiments, the dovetail groove slides on the left and right sides can also be motor 7 drive structures or handwheel drive structures.

[0030] In addition, see Appendix Figure 1 , 2In this embodiment, the driving assembly includes a motor 7, a gear box 8 and a power shaft 9 connected to a movable plate 6 (a slide plate of a dovetail groove slide), wherein the power input end of the gear box 8 is connected to the output shaft of the motor 7, the power shaft 9 is vertically connected to the power output end of the gear box 8, and the feed wheel 5 is connected to the outside of the upper end of the power shaft 9.

[0031] See Attachment Figure 2 , 3 A fixing sleeve 10 is sleeved on the upper end of the power shaft 9. Specifically, the fixing sleeve 10 and the upper end of the power shaft 9 are driven by a key connection; a positioning ring 11 is convexly provided on the outer peripheral wall of the lower end of the fixing sleeve 10, and the feed wheel 5 is sleeved on the outside of the fixing sleeve 10, and the feed wheel 5 is fixed to the positioning ring 11 by a plurality of vertically arranged bolts. In this structure, the positioning ring 11 is used to axially support the fixing sleeve 10; in addition, a plurality of threaded holes distributed along the circumferential direction are opened on the positioning ring 11, and correspondingly, a plurality of connecting holes distributed along the circumferential direction and axially penetrating are provided on the feed wheel 5, and bolts are penetrated in each connecting hole, and the lower end of each bolt is screwed into the corresponding threaded hole, thereby realizing the connection and fixation of the feed wheel 5 and the fixing ring.

[0032] In addition, in order to ensure that the power shaft 9 rotates flexibly and has no up and down swing, in this embodiment, an upper fixed plate 12 is connected to the upper end of the gear box 8, the upper fixed plate 12 is sleeved on the outside of the power shaft 9, and an upper bearing 13 is installed between the inner hole wall of the upper fixed plate 12 and the outer wall of the power shaft 9; an annular positioning groove 14 is provided on the upper end surface of the upper fixed plate 12, and an annular positioning protrusion 15 is convexly provided on the lower end surface of the fixed sleeve 10, and the lower end of the positioning protrusion 15 is rotatably fitted into the positioning groove 14 along the circumferential direction; a plurality of drainage channels 16 are also provided on the upper end surface of the upper fixed plate 12, one end of each drainage channel 16 extends to the positioning groove 14, and the other end extends radially to the outer edge of the upper fixed plate 12, see the attached Figure 3 In this structure, the positioning groove 14 and the positioning protrusion 15 are mainly provided to prevent water from leaking out, because in actual production, the workpieces conveyed in the feed channel 3 often contain a small amount of water. If the accumulated water cannot be properly handled, it is easy to flow to the upper bearing 13, thus affecting its service life.

[0033] On the other hand, see Appendix Figure 4In this embodiment, a lower fixing plate 17 is connected to the lower end of the gear box 8, and the lower fixing plate 17 is connected to the movable plate 6. The lower end of the power shaft 9 is passed through the lower fixing plate 17, and a lower bearing 18 is installed between the inner hole of the lower fixing plate 17 and the outer wall of the power shaft 9. In addition, a mounting flange 19 is connected to the upper end of the movable plate 6, and the lower fixing plate 17 is detachably connected to the mounting flange 19; an avoidance through hole 20 is opened in the middle of the mounting flange 19, and the lower end of the power shaft 9 extends to the avoidance through hole 20, and the lower end of the power shaft 9 is equipped with a limit assembly for axially limiting it, and the limit assembly is accommodated in the avoidance through hole 20.

[0034] In this embodiment, preferably, the limiting assembly includes a gasket 21, a plane bearing 22 and a locking nut 23 which are arranged from top to bottom and axially abut against each other. Here, after the plane bearing 22 is arranged, the power shaft 9 can achieve axial abutment and limiting while also being able to rotate axially.

[0035] In the description of the present application, the description with reference to the term "present embodiment" or "some embodiments" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A double-sided grinding machine feed drive mechanism, characterized in that: The invention comprises two connecting plates (2) connected to a frame (1) and located between two grinding discs, and the two connecting plates (2) extend in the front-to-back direction of the frame (1), a feed channel (3) is formed between the two connecting plates (2), and a groove (4) connected to the feed channel (3) is provided on the outer wall at the front end of the two connecting plates (2); a feed wheel (5) is provided at the front end of the frame (1) and on the side of the two connecting plates (2) facing away from the feed channel (3); The feed wheel (5) is at least partially accommodated in the groove (4) and protrudes from the inner side walls of the two connecting plates (2); a movable plate (6) movable leftward and rightward and a driver for driving the movable plate (6) to move are respectively arranged on the top plate at the front end of the frame (1) and located on both sides of the feed channel (3); the two feed wheels (5) are respectively arranged on the two movable plates (6), and the two movable plates (6) are respectively provided with a driving component for driving the feed wheel (5) to rotate.

2. The double-sided grinding machine feed drive mechanism according to claim 1, characterized in that: The driving assembly comprises a motor (7), a gear box (8) and a power shaft (9) connected to the movable plate (6); the power input end of the gear box (8) is connected to the output shaft of the motor (7); the power shaft (9) is vertically connected to the power output end of the gear box (8); and the feed wheel (5) is connected to the outside of the upper end of the power shaft (9).

3. The double-sided grinding machine feed drive mechanism according to claim 2, characterized in that: The upper end of the power shaft (9) is sleeved with a fixing sleeve (10), and a positioning ring (11) is protrudingly provided on the outer peripheral wall of the lower end of the fixing sleeve (10). The feed wheel (5) is sleeved outside the fixing sleeve (10), and the feed wheel (5) is connected and fixed to the positioning ring (11) by a plurality of vertically arranged bolts.

4. The double-sided grinding machine feed drive mechanism according to claim 3, characterized in that: The upper end of the gear box (8) is connected to an upper fixing plate (12), the upper fixing plate (12) is sleeved on the outside of the power shaft (9), and an upper bearing (13) is arranged between the inner hole wall of the upper fixing plate (12) and the outer wall of the power shaft (9); an annular positioning groove (14) is arranged on the upper end surface of the upper fixing plate (12), and an annular positioning protrusion (15) is arranged on the lower end surface of the fixing sleeve (10), and the lower end of the positioning protrusion (15) is rotatably fitted into the positioning groove (14) along the circumferential direction; a plurality of drainage channels (16) are also arranged on the upper end surface of the upper fixing plate (12), one end of each drainage channel (16) extends to the positioning groove (14), and the other end extends radially to the outer edge of the upper fixing plate (12).

5. The double-sided grinder feed drive mechanism according to any one of claims 2 to 4, characterized in that: The lower end of the gear box (8) is connected to a lower fixing plate (17), and the lower fixing plate (17) is connected to the movable plate (6). The lower end of the power shaft (9) is passed through the lower fixing plate (17), and a lower bearing (18) is installed between the inner hole of the lower fixing plate (17) and the outer wall of the power shaft (9).

6. The double-sided grinding machine feed drive mechanism according to claim 5, characterized in that: The upper end of the movable plate (6) is connected to a mounting flange (19), and the lower fixed plate (17) is detachably connected to the mounting flange (19); a bypass hole (20) is provided in the middle of the mounting flange (19), and the lower end of the power shaft (9) extends to the bypass hole (20), and the lower end of the power shaft (9) is equipped with a limit assembly for axially limiting the power shaft (9), and the limit assembly is accommodated in the bypass hole (20).

7. The double-sided grinding machine feed drive mechanism according to claim 6, characterized in that: The limiting assembly comprises a gasket (21), a plane bearing (22) and a locking nut (23) which are arranged from top to bottom and axially abut against each other.

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