Numerical control internal and external grinding machine

Abstract

The utility model relates to the technical field of grinding machines, and discloses a numerical control internal and external grinding machine which comprises a working table, a Y-axis sliding table and an X-axis sliding table are installed on the upper end face of the working table, a workpiece positioning mechanism is installed at the movable end of the Y-axis sliding table, and a rotary grinding mechanism is installed at the movable end of the X-axis sliding table. And the outer circle and the inner hole of the fixed workpiece are ground through the rotary grinding mechanism. The outer circle inner hole of a workpiece can be ground through one device, multiple devices do not need to be used in a combined mode, machining cost is reduced, operation steps are simple and convenient, actual working efficiency can be improved, production benefits of enterprises are improved, and the device has wide market prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a numerically controlled internal and external cylindrical grinding machine. Background Art

[0002] CNC grinding machines are machine tools that use grinding tools to grind the surface of workpieces through CNC technology. Most grinding machines use high-speed rotating grinding wheels for grinding, while a few use other grinding tools such as oilstones and abrasive belts and free abrasives for processing, such as honing machines, superfinishing machines, belt grinders, grinders and polishers. CNC grinding machines include CNC surface grinders, CNC centerless grinders, CNC internal and external cylindrical grinders, CNC vertical universal grinders, CNC coordinate grinders, CNC forming grinders, etc.

[0003] At present, when grinding the outer circle and inner hole of the workpiece, CNC internal grinder and CNC external cylindrical grinder are mostly used for combined operation. The outer circle of the workpiece is first processed by the CNC external cylindrical grinder, and then the inner hole of the workpiece is processed by the CNC internal cylindrical grinder. At least two devices need to be used in combination, the processing cost is high, and the operation steps are cumbersome, resulting in low actual work efficiency, which is not conducive to the production benefits of the enterprise. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a CNC internal and external cylindrical grinding machine.

[0005] The utility model provides a numerically controlled internal and external cylindrical grinding machine, comprising a worktable, wherein a Y-axis slide and an X-axis slide are mounted on the upper end surface of the worktable, a workpiece positioning mechanism is mounted on the movable end of the Y-axis slide, and a rotary grinding mechanism is mounted on the movable end of the X-axis slide, and the outer circle and inner hole of the fixed workpiece are ground by the rotary grinding mechanism.

[0006] As a further optimized solution of the utility model, the workpiece positioning mechanism includes an electric spindle and a self-locking tailstock installed on the movable end of the Y-axis slide, and the electric spindle and the self-locking tailstock are arranged relatively and the distance between them is adjustable.

[0007] As a further optimized solution of the utility model, an adjustment slide is installed on the movable end of the Y-axis slide, the electric spindle is fixed to one end of the adjustment slide, and the self-locking tailstock is installed on the movable end of the adjustment slide. The self-locking tailstock is driven close to or away from the electric spindle through the adjustment slide.

[0008] As a further optimized solution of the utility model, a centering chuck is installed on one side of the electric spindle close to the self-locking tailstock.

[0009] As a further optimized solution of the utility model, the rotary grinding mechanism includes a rotary base, a main grinding head, and a secondary grinding head. The rotary base is installed on the movable end of the X-axis slide, and the main grinding head and the secondary grinding head are respectively installed on both sides of the top of the rotary base. The main grinding head and the secondary grinding head are driven to rotate by the rotary base to switch the grinding head according to the outer circle and inner hole of the workpiece.

[0010] As a further optimized solution of the utility model, the rotary base includes a motor and a rotary column. The motor is installed on the movable end of the X-axis slide. The output shaft of the motor faces upward and is connected to the rotary column. The top of the rotary column extends upward, and the main grinding head and the secondary grinding head are respectively installed on both sides of the top of the rotary column.

[0011] As a further optimized solution of the utility model, it also includes a grinding wheel library installed on the workbench, and a plurality of spare grinding wheels are stored in the grinding wheel library.

[0012] The CNC internal and external cylindrical grinding machine proposed by the utility model has the following beneficial effects:

[0013] (i) By adjusting the distance between the electric spindle and the self-locking tailstock, workpieces of different lengths can be positioned and clamped, and then the Y-axis slide is used to drive the adjustment slide to move along the Y-axis to adjust the specific position of the workpiece, and then the X-axis slide is used to drive the rotary base to move along the X-axis so that the main grinding head approaches and contacts the outer circle of the workpiece so as to grind the outer circle of the workpiece, and then the rotary base is used to drive the main grinding head to rotate so that the main grinding head and the workpiece are inclined so as to grind the outer circle of the workpiece at multiple angles. Similarly, the inner hole of the workpiece is ground by the secondary grinding head, and the secondary grinding head is driven to rotate by the rotary base so that the secondary grinding head and the workpiece are inclined so as to grind the inner hole of the workpiece at multiple angles, thereby meeting different processing requirements;

[0014] (ii) The utility model can grind the outer circle and inner hole of the workpiece with one device, without the need to use multiple devices in combination, thus reducing the processing cost. In addition, the operation steps are simple and convenient, which is conducive to improving actual work efficiency, thereby improving the production efficiency of the enterprise and has broad market prospects.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the workpiece positioning mechanism of the utility model;

[0018] Figure 3It is a structural schematic diagram of the rotary grinding mechanism of the utility model.

[0019] Description of the drawings: 1. Workbench; 2. Y-axis slide; 3. X-axis slide; 4. Electric spindle; 5. Self-locking tailstock; 6. Rotary base; 7. Primary grinding head; 8. Secondary grinding head; 9. Adjustment slide; 10. Grinding wheel magazine; 11. Centering chuck. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] See also Figure 1-Figure 3 A CNC internal and external cylindrical grinding machine comprises a worktable 1, a Y-axis slide 2 and an X-axis slide 3 are mounted on the upper end surface of the worktable 1, a workpiece positioning mechanism is mounted on the movable end of the Y-axis slide 2, and a rotary grinding mechanism is mounted on the movable end of the X-axis slide 3. The rotary grinding mechanism is used to grind the outer circle and inner hole of the fixed workpiece, and can also process the camshaft;

[0026] Specifically, the workpiece positioning mechanism includes an electric spindle 4 and a self-locking tailstock 5 installed on the movable end of the Y-axis slide 2, and the electric spindle 4 and the self-locking tailstock 5 are arranged opposite to each other and the distance between them is adjustable;

[0027] Furthermore, the Y-axis slide 2 has a movable end, and an adjusting slide 9 is installed on the movable end of the Y-axis slide 2, the electric spindle 4 is fixed to one end of the adjusting slide 9, and the self-locking tailstock 5 is installed on the movable end of the adjusting slide 9. The self-locking tailstock 5 is driven to approach or move away from the electric spindle 4 by the adjusting slide 9, so as to clamp and fix workpieces of various specifications, and the adjusting slide 9 is driven to move by the Y-axis slide 2, thereby driving the workpiece positioning mechanism and the workpiece to move synchronously, so as to perform grinding processing on different positions of the workpiece;

[0028] Furthermore, the Y-axis slide 2 may also have two movable ends, and the electric spindle 4 and the self-locking tailstock 5 are respectively mounted on the two movable ends. The electric spindle 4 and the self-locking tailstock 5 can be driven to move closer to or farther from each other through the Y-axis slide 2, and the workpiece can also be moved by the synchronous and unidirectional movement of the two movable ends.

[0029] Specifically, a centering chuck 11 is installed on one side of the electric spindle 4 close to the self-locking tailstock 5, and the workpiece is automatically centered and clamped by the centering chuck 11, and then the self-locking tailstock 5 is moved toward the other end of the workpiece to lock the other end of the workpiece, thereby completing the positioning of the workpiece;

[0030] Specifically, the rotary grinding mechanism includes a rotary base 6, a main grinding head 7, and a secondary grinding head 8. The rotary base 6 is mounted on the movable end of the X-axis slide 3. The main grinding head 7 and the secondary grinding head 8 are respectively mounted on both sides of the top of the rotary base 6. The rotary base 6 drives the main grinding head 7 and the secondary grinding head 8 to rotate, so as to switch the grinding head for the outer circle and the inner hole of the workpiece;

[0031] Furthermore, the rotary base 6 includes a motor and a rotary column. The motor is mounted on the movable end of the X-axis slide 3. The output shaft of the motor faces upward and is connected to the rotary column. The top of the rotary column extends upward. The primary grinding head 7 and the secondary grinding head 8 are respectively mounted on both sides of the top of the rotary column.

[0032] Specifically, the grinding machine also includes a grinding wheel magazine 10 installed on the workbench 1, in which a plurality of spare grinding wheels are stored. The grinding wheel magazine 10 has a cavity for accommodating the grinding wheel magazine 10, and a straight-line manipulator is also installed on the grinding wheel magazine 10, through which the grinding wheel on the rotary grinding mechanism is automatically replaced.

[0033] In summary, the CNC internal and external cylindrical grinding machine proposed by the utility model adjusts the distance between the electric spindle 4 and the self-locking tailstock 5 so as to position and clamp workpieces of different lengths, and then drives the adjustment slide 9 to move along the Y axis through the Y-axis slide 2 so as to adjust the specific position of the workpiece, and then drives the rotary base 6 to move along the X axis through the X-axis slide 3 so that the main grinding head 7 approaches and contacts the outer circle of the workpiece so as to grind the outer circle of the workpiece, and then drives the main grinding head 7 to rotate through the rotary base 6 so that the main grinding head 7 and the workpiece have an inclination angle so as to The outer circle of the workpiece is ground at multiple angles. Similarly, the inner hole of the workpiece is ground by the secondary grinding head 8. The secondary grinding head 8 is driven to rotate by the rotary base 6 so that the secondary grinding head 8 and the workpiece are inclined to perform multi-angle grinding on the inner hole of the workpiece, thereby meeting different processing requirements. The outer circle and inner hole of the workpiece can be ground by one device without the need for a combination of multiple devices, thus reducing the processing cost. In addition, the operating steps are simple and convenient, which is conducive to improving actual work efficiency, thereby improving the production efficiency of the enterprise and has broad market prospects.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC internal and external cylindrical grinding machine, comprising a worktable (1), characterized in that: The upper end surface of the workbench (1) is equipped with a Y-axis slide (2) and an X-axis slide (3), the movable end of the Y-axis slide (2) is equipped with a workpiece positioning mechanism, and the movable end of the X-axis slide (3) is equipped with a rotary grinding mechanism, and the outer circle and inner hole of the fixed workpiece are ground by the rotary grinding mechanism.

2. A CNC internal and external cylindrical grinding machine according to claim 1, characterized in that: The workpiece positioning mechanism comprises an electric spindle (4) and a self-locking tailstock (5) mounted on the movable end of a Y-axis slide table (2); the electric spindle (4) and the self-locking tailstock (5) are arranged relative to each other and the spacing between them is adjustable.

3. A CNC internal and external cylindrical grinding machine according to claim 2, characterized in that: An adjusting slide (9) is installed on the movable end of the Y-axis slide (2), the electric spindle (4) is fixed to one end of the adjusting slide (9), and the self-locking tailstock (5) is installed on the movable end of the adjusting slide (9), and the self-locking tailstock (5) is driven to approach or move away from the electric spindle (4) through the adjusting slide (9).

4. A CNC internal and external cylindrical grinding machine according to claim 2, characterized in that: A centering chuck (11) is installed on one side of the electric spindle (4) close to the self-locking tailstock (5).

5. The CNC internal and external cylindrical grinding machine according to claim 1, characterized in that: The rotary grinding mechanism comprises a rotary base (6), a main grinding head (7) and a secondary grinding head (8). The rotary base (6) is mounted on the movable end of the X-axis slide table (3). The main grinding head (7) and the secondary grinding head (8) are respectively mounted on both sides of the top of the rotary base (6). The rotary base (6) drives the main grinding head (7) and the secondary grinding head (8) to rotate so as to switch the grinding heads for the outer circle and the inner hole of the workpiece.

6. A CNC internal and external cylindrical grinding machine according to claim 5, characterized in that: The rotary base (6) comprises a motor and a rotary column. The motor is mounted on the movable end of the X-axis slide table (3). The output shaft of the motor faces upward and is connected to the rotary column. The top end of the rotary column extends upward. The primary grinding head (7) and the secondary grinding head (8) are respectively mounted on both sides of the top end of the rotary column.

7. A CNC internal and external cylindrical grinding machine according to any one of claims 1 to 6, characterized in that: It also includes a grinding wheel magazine (10) installed on the workbench (1), wherein a plurality of spare grinding wheels are stored in the grinding wheel magazine (10).

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