Precise speed regulating device for guide wheel of centerless grinding machine

Abstract

The utility model discloses a centerless grinding machine guide wheel precise speed regulation device, which relates to the technical field of grinding machine grinding head speed control, and comprises a guide wheel, a speed regulation component and a transmission component, the guide wheel is matched with a main grinding wheel to grind a product, and the speed regulation component is connected with the guide wheel through the transmission component to regulate the rotating speed of the guide wheel. The rotating speed of the guide wheel is regulated and controlled in a high-precision mode through the speed regulation assembly, precise speed regulation control over the grinding head of the grinding machine is achieved, and precise speed regulation of the guide wheel of the grinding machine can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guide wheel speed control of centerless grinding machine, and particularly relates to a guide wheel precision speed regulating device of centerless grinding machine. BACKGROUND

[0002] The existing automatic numerical control grinding machine, the grinding head generally includes the main grinding wheel and the guide wheel, wherein the main grinding wheel is connected with the independent driving device, the driving device of the main grinding wheel is generally large in power, the speed control acceleration control has the delay, and the speed control is not easy to adjust accurately, and the precision control of the grinding head is mainly realized by adjusting the rotating speed of the guide wheel, the existing guide wheel generally has no accurate speed change driving, the precision speed control effect is poor, and the precision speed control of the grinding head of the grinding machine cannot be realized.

[0003] The patent document with the application number 201811073783.0 discloses a grinding machine with automatic feeding compensation function, relates to the field of grinding machine equipment, and comprises a grinding machine body, a feeding compensation mechanism and a sliding box mechanism, which is suitable for the grinding of workpieces of different sizes, has compact overall structure, and adopts the screw nut mechanism to ensure the precision and stability. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a guide wheel precision speed regulating device of centerless grinding machine, and solves the problem of precision speed control of the guide wheel.

[0005] The utility model can be realized by the following technical scheme: a guide wheel precision speed regulating device of centerless grinding machine, comprising:

[0006] The guide wheel cooperates with the main grinding wheel to grind the product.

[0007] The speed regulating assembly is connected with the guide wheel through the transmission assembly and adjusts the rotating speed of the guide wheel.

[0008] Further, the transmission assembly comprises a main shaft, and the main shaft penetrates through and is fixedly connected with the guide wheel.

[0009] Further, the speed regulating assembly comprises a servo motor and a gear piece, and the servo motor drives the main shaft to rotate through the gear piece.

[0010] Further, bearings are sleeved with the main shaft at both sides of the guide wheel, and the bearings are ball bearings or roller bearings.

[0011] Further, two ball bearings and one roller bearing are sleeved with the main shaft on the side close to the speed regulating assembly.

[0012] One roller bearing is sleeved with the main shaft on the side away from the speed regulating assembly.

[0013] Further, the ball bearing and the roller bearing are installed with a limiting ring.

[0014] Further, the roller bearing is a double roller bearing.

[0015] Further, the spindle is threadedly connected with a journal, and the journal is used for fixing the position of the bearing.

[0016] Further, the inner ring of the bearing is connected with the spindle, and the outer ring of the bearing is connected with a sleeve, and the sleeve is connected with the machine table through a bearing seat.

[0017] The utility model discloses the beneficial effects:

[0018] 1, the utility model discloses a high -precision control guide pulley rotation speed through speed regulation subassembly, realizes the precision speed regulation adjustment to grinding machine grinding head, and it is favorable to the precision product polishing.

[0019] 2, the utility model discloses the steering engagement of rack and pinion, and it is favorable to save servo motor layout space, and the equipment structure is more compact.

[0020] 3, the utility model discloses ball bearing and roller bearing are used in cooperation, can reduce friction on the basis of guaranteeing the high -precision rotation of the spindle, improves mechanical rotation efficiency and precision. DRAWINGS

[0021] Figure 1 It is the appearance structure schematic drawing of the utility model centerless grinding machine guide pulley precision speed regulation device;

[0022] Figure 2 It is one of transmission assembly exploded structure schematic drawing of the utility model;

[0023] Figure 3 It is one of transmission assembly exploded structure schematic drawing of the utility model;

[0024] Figure 4 It is speed regulation assembly structure schematic drawing of the utility model.

[0025] 100, guide pulley;

[0026] 200, transmission assembly;210, spindle;220, ball bearing;230, roller bearing;240, limiting ring;250, journal;260, sleeve;270, bearing seat;

[0027] 300, speed regulation assembly;310, servo motor;311, drive shaft;320, gear;330, rack;340, gear box. DETAILED DESCRIPTION

[0028] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein identical or similar symbols represent identical or similar elements or elements having identical or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as a limitation of the present application.

[0029] The existing automatic numerical control grinding machine, the grinding head generally includes a main grinding wheel and a guide wheel 100, wherein the main grinding wheel is connected with an independent driving device, the driving device of the main grinding wheel generally has large power, and the speed control has delay, so that it is not easy to precisely adjust the speed, and it is not conducive to the polishing of precision products. The guide wheel 100 needs to cooperate with the polishing control adjustment, and the existing guide wheel 100 generally adopts non-differential power driving, so that the speed of the guide wheel 100 cannot be precisely actively adjusted, and the guide wheel 100 cannot realize precise speed control of the grinding head.

[0030] In view of the above problems, the utility model discloses a grinding machine guide wheel 100 precision speed regulation device, as shown in Figures 1-4 The device comprises a guide wheel 100, a speed regulation assembly 300 and a transmission assembly 200.

[0031] Embodiment 1:

[0032] The transmission assembly 200 comprises a main shaft 210, the main shaft 210 penetrates and fixedly connects the guide wheel 100, bearings are sleeved on both sides of the main shaft 210, and the bearings can be ball bearings 220 or roller bearings 230.

[0033] The ball bearings 220 are more suitable for high-speed movement due to their small contact area, and the ball bearings 220 can improve mechanical efficiency by reducing friction through rolling; the roller bearings 230 are suitable for high-precision and high-rigidity rotation requirements due to their high pre-tightening force and rigidity.

[0034] Further, as shown in Figure 2 And Figure 3 The main shaft 210 is sleeved with two ball bearings 220 and one roller bearing 230 on the side close to the speed regulation assembly 300; and the main shaft 210 is sleeved with one roller bearing 230 on the side away from the speed regulation assembly 300.

[0035] The combination of the ball bearings 220 and the roller bearings 230 can reduce friction and improve mechanical efficiency and precision on the basis of ensuring high-precision rotation of the main shaft 210.

[0036] Further, between the ball bearing 220 and the roller bearing 230, and between the ball bearing 220 and the ball bearing 220, a limit ring 240 is installed, which can be fixedly installed by machining a stop ring groove on the main shaft 210. Limiting by the limit ring 240 can isolate the influence of rotation between the bearings, and is also beneficial to bearing axial load.

[0037] Further, the roller bearing 230 adopts a double roller bearing 230, which is more suitable for the high precision and high rigidity requirements of the grinding machine.

[0038] When the bearing is installed on the main shaft 210, as shown in Figure 3 , the bearing inner ring is connected to the main shaft 210, the bearing outer ring is connected to the shaft sleeve 260, the shaft sleeve 260 is connected to the bearing seat 270, and the bearing seat 270 is connected to the machine table, so that the guide wheel 100 is stably installed; as shown in Figure 2 and Figure 3 , the outer side of the bearing is provided with a journal 250, which is used to fix the position of the outer bearing, and the journal 250 can be threadedly connected to the main shaft 210, so that the bearing is stably installed.

[0039] Example 2:

[0040] Based on example 1, the speed regulating assembly 300 structure is shown in Figure 4 , the speed regulating assembly 300 includes a servo motor 310 and a gear part, etc., the servo motor 310 drives the main shaft 210 to rotate through the gear part.

[0041] Further, the gear part can include a gear 320 (worm) and a rack 330 (worm), wherein the rack 330 is connected to the driving shaft 311 of the servo motor 310, the gear 320 is connected to the main shaft 210, and the gear 320 engages the rack 330 to form a gear and rack steering power transmission.

[0042] Through steering drive, the installation space of the servo motor 310 can be saved, and the whole grinding machine structure is more compact.

[0043] The principle of the utility model: when the grinding machine is used, the precision products that need to be speed-regulated can be controlled by the control system to control the servo motor 310, and the main shaft 210 is driven to rotate by the power of the servo motor 310 to regulate the speed, so as to realize the speed regulation of the guide wheel 100, and the main shaft 210 is matched with precise bearing parts, so as to realize the precise speed regulation of the grinding machine guide wheel 100.

[0044] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0045] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0047] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A precision speed regulating device for a centerless grinder guide wheel, characterized by, Include: Guide wheel (100), guide wheel (100) with the main grinding wheel to the product grinding; Speed regulating assembly (300), speed regulating assembly (300) is connected with guide wheel (100) through transmission assembly (200), and the rotating speed of guide wheel (100) is adjusted.

2. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 1, characterized in that, The transmission assembly (200) comprises a main shaft (210), and the main shaft (210) penetrates and fixedly connects the guide wheel (100).

3. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 2, characterized in that, The speed regulating assembly (300) comprises a servo motor (310) and a gear part, and the servo motor (310) drives the main shaft (210) to rotate through the gear part.

4. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 2, characterized in that, The main shaft (210) is sleeved with a bearing on both sides of the guide wheel (100), and the bearing is a ball bearing (220) or a roller bearing (230).

5. The precision speed regulating device of the guide wheel of the centerless grinding machine according to claim 4, wherein, The main shaft (210) is sleeved with two ball bearings (220) and a roller bearing (230) on the side close to the speed regulating assembly (300); The main shaft (210) is sleeved with a roller bearing (230) on the side away from the speed regulating assembly (300).

6. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 4, characterized in that, Limiting rings (240) are installed between the ball bearing (220) and the roller bearing (230) and between the ball bearings (220).

7. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 4, characterized in that, The roller bearing (230) is a double roller bearing (230).

8. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 4, characterized in that, The main shaft (210) is threadedly connected with a journal (250), and the journal (250) is used for fixing the position of the bearing.

9. The precision speed regulating device for the guide wheel of a centerless grinding machine according to claim 4, characterized in that, The inner ring of the bearing is connected with the main shaft (210), the outer ring of the bearing is connected with a shaft sleeve (260), and the shaft sleeve (260) is connected with a machine table through a bearing seat (270).

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