Up-down feeding mechanism of surface grinding machine

Abstract

The utility model discloses an up-and-down feeding mechanism of a surface grinding machine. The up-and-down feeding mechanism comprises a machine body, a stand column, a grinding head body, a servo motor, a motor mounting seat, a worm and gear speed reducer, a first bearing seat, a transmission shaft, a large gear, a ball screw rod, a ball screw nut and a coupler. Wherein the servo motor is installed on the motor installation seat, the motor installation seat is installed on the worm and gear speed reducer, the worm and gear speed reducer is installed on the grinding head body, and the lower portion of the worm and gear speed reducer is connected with the bearing seat; wherein an output shaft of the worm and gear speed reducer is connected with a transmission shaft through a coupler, a small gear is installed at the lower end of the transmission shaft, a large gear meshed with the small gear is fixed to a ball screw rod, and the ball screw rod is connected with a ball screw nut.

Description

Technical Field

[0001] The utility model relates to the technical field of surface grinders, in particular to a vertical feeding mechanism of a surface grinder. Background Art

[0002] The two most important requirements for the upper and lower feed mechanisms of surface grinders are high precision and self-locking capability. On the one hand, the reducers in the upper and lower feed mechanisms of existing surface grinders on the market are gear reducers. These reducers have the disadvantages of being bulky and requiring a brake motor. Brake motors are electrically self-locking, resulting in a higher failure rate than mechanical self-locking mechanisms. On the other hand, the reducer's worm gear shaft and drive shaft are often manufactured as a single component or directly connected via a flat key. This structural disadvantage places extremely high demands on the manufacturing precision of the reducer housing and the grinding head housing, and the rigid connection can lead to stress concentration after installation, affecting the drive shaft's service life and transmission accuracy. Utility Model Content

[0003] This application aims to solve the problems mentioned in the above background technology.

[0004] The present application discloses a surface grinding machine up and down feeding mechanism, comprising a bed, a column, a grinding head body, a servo motor, a motor mounting seat, a worm gear reducer, a first bearing seat, a transmission shaft, a large gear, a ball screw, a ball screw nut, and a coupling;

[0005] The bed is connected to the column, the servo motor is installed on the motor mounting seat, the motor mounting seat is installed on the worm gear reducer, the worm gear reducer is installed on the grinding head body, and a first bearing seat is connected below the worm gear reducer;

[0006] Among them, the output shaft of the worm gear reducer is connected to the transmission shaft through a coupling, a small gear is installed at the lower end of the transmission shaft, a large gear meshing with the small gear is fixed on the ball screw screw, and the ball screw screw is connected to a ball screw nut.

[0007] In a specific embodiment, the worm gear reducer includes a reducer housing, a second bearing seat, a bearing, a worm, a worm wheel, a worm wheel shaft, and a reducer seat; wherein the bearing seat is installed on one side of the interior of the reducer housing, the bearing is fixed on the second bearing seat, the worm is installed on the bearing, the worm wheel and the worm are meshed, the worm wheel is connected to the worm wheel shaft, and the reducer seat is installed below the reducer housing.

[0008] Beneficial effects: The worm gear reducer has the advantage of self-locking. At the same time, due to the deadweight of the grinding head body, column and other components, the gap of the worm gear can be eliminated. The failure rate is lower than that of other reduction mechanisms. The use of the coupling between the reducer and the drive shaft can effectively eliminate the installation and manufacturing errors of the reducer housing and the grinding head housing, with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of the feed mechanism of the surface grinder of the present utility model;

[0010] Figure 2 This is a front view of the worm gear reducer of the utility model;

[0011] Figure 3 It is a side view of the worm gear reducer of the utility model.

[0012] Figure numerals: 1. bed; 2. column; 3. grinding head body; 4. servo motor; 5. motor mounting seat; 6. worm gear reducer; 61. reducer housing; 62. second bearing seat; 63. bearing; 64. worm; 65. worm wheel; 66. worm wheel shaft; 67. reducer seat; 7. first bearing seat; 8. transmission shaft; 9. large gear; 10. ball screw; 11. ball screw nut; 12. coupling. DETAILED DESCRIPTION

[0013] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "counterclockwise," "clockwise," "axial," "radial," "circumferential," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0016] See also Figure 1-Figure 3 , a surface grinder up and down feeding mechanism of this embodiment includes a bed 1, a column 2, a grinding head body 3, a servo motor 4, a motor mounting seat 5, a worm gear reducer 6, a first bearing seat 7, a transmission shaft 8, a large gear 9, a ball screw 10, a ball screw nut 11, and a coupling 12; wherein, the bed is connected to the column, the servo motor 4 is mounted on the motor mounting seat 5, the motor mounting seat 5 is mounted on the worm gear reducer 6, the worm gear reducer 6 is mounted on the grinding head body 3, and the worm gear reducer 6 is connected to the first bearing seat 7 below; wherein, the output shaft of the worm gear reducer 6 is connected to the transmission shaft 8 through the coupling 12, and a pinion is installed at the lower end of the transmission shaft 8, and a large gear 9 meshing with the pinion is fixed on the ball screw 10, and the ball screw 10 is connected to the ball screw nut 11.

[0017] See also Figure 2 and Figure 3 , including a worm gear reducer 6; wherein, the worm gear reducer 6 includes a reducer housing 61, a second bearing seat 62, a bearing 63, a worm 64, a worm wheel 65, a worm wheel shaft 66, and a reducer seat 67; wherein, the second bearing seat 62 is installed on one side of the inside of the reducer housing 61, the bearing 63 is fixed on the second bearing seat 62, the worm 64 is installed on the bearing 63, the worm wheel 65 is meshed with the worm 64, the worm wheel 65 is connected to the worm wheel shaft 66, and the reducer seat 67 is installed below the reducer housing 61.

[0018] The worm gear reducer 6 in the upper and lower feed mechanism of the grinding machine plane in this embodiment has the advantage of self-locking. At the same time, due to the deadweight of the grinding head body 3, the column 2 and other components, the gap between the worm gear and the worm can be eliminated, and the failure rate is lower than that of other reduction mechanisms. The use of the coupling between the reducer and the transmission shaft can effectively eliminate the installation and manufacturing errors of the reducer housing and the grinding head housing, and the precision is high.

[0019] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings, 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 surface grinder up and down feeding mechanism, characterized in that: include: Bed (1), column (2), grinding head body (3), servo motor (4), motor mounting seat (5), worm gear reducer (6), first bearing seat (7), transmission shaft (8), large gear (9), ball screw (10), ball screw nut (11), coupling (12); The bed (1) is connected to the column (2), the servo motor (4) is mounted on the motor mounting seat (5), the motor mounting seat (5) is mounted on the worm gear reducer (6), the worm gear reducer (6) is mounted on the grinding head body (3), and a first bearing seat (7) is connected below the worm gear reducer (6); The output shaft of the worm gear reducer (6) is connected to the transmission shaft (8) through a coupling (12), a small gear is installed at the lower end of the transmission shaft (8), a large gear (9) meshing with the small gear is fixed on the ball screw (10), and the ball screw (10) is connected to a ball screw nut (11).

2. The surface grinding machine vertical feeding mechanism according to claim 1, characterized in that: in, The worm gear reducer (6) includes a reducer housing (61), a second bearing seat (62), a bearing (63), a worm (64), a worm wheel (65), a worm wheel shaft (66), and a reducer seat (67); The second bearing seat (62) is installed on one side of the reducer housing (61), the bearing (63) is fixed on the second bearing seat (62), the worm (64) is installed on the bearing (63), the worm wheel (65) and the worm (64) are engaged, the worm wheel (65) is connected to the worm wheel shaft (66), and the reducer seat (67) is installed below the reducer housing (61).

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