Multi-axis linkage numerical control tool grinding machine

Abstract

The utility model relates to the technical field of grinding machines, and discloses a multi-axis linkage numerical control tool grinding machine which comprises a workbench, a Y-axis sliding table, a workpiece positioning mechanism, a bridge cross beam, an X-axis sliding table, a lifting mechanism and a grinding mechanism. The Y-axis sliding table is installed on one side of the upper end face of the workbench, and the workpiece positioning mechanism is installed at the movable end of the Y-axis sliding table. The bridge cross beam is installed on the other side of the upper end face of the workbench, the X-axis sliding table is installed on the bridge cross beam, the lifting mechanism is installed at the movable end of the X-axis sliding table, and the grinding mechanism is installed at the movable end of the lifting mechanism. Through the combined design of the Y-axis sliding table and the workpiece positioning mechanism, a workpiece can be conveniently positioned, the left-right distance of the workpiece can be adjusted along the Y axis, and then the lifting mechanism and the grinding mechanism are driven by the X-axis sliding table to move front and back along the X axis, so that the distance between the grinding mechanism and the workpiece can be conveniently adjusted; therefore, forward and reverse continuous grinding machining can be conveniently carried out on the workpiece, and the actual machining efficiency and machining precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a multi-axis linkage numerically controlled tool grinder. 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, multi-axis linkage CNC tool grinders are mostly used for the operation. However, most of the existing CNC grinders are of traditional structure design, which makes it difficult to ensure the processing efficiency and processing accuracy of continuous positive and negative grinding of the workpiece. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a multi-axis linkage CNC tool grinder.

[0005] The utility model proposes a multi-axis linkage CNC tool grinder, comprising a workbench, a Y-axis slide, a workpiece positioning mechanism, a bridge beam, an X-axis slide, a lifting mechanism, and a grinding mechanism;

[0006] The Y-axis slide is installed on one side of the end surface of the workbench, and the workpiece positioning mechanism is installed on the movable end of the Y-axis slide;

[0007] The bridge beam is installed on the other side of the upper end surface of the workbench, the X-axis slide is installed on the bridge beam, the lifting mechanism is installed on the movable end of the X-axis slide, and the grinding mechanism is installed on the movable end of the lifting mechanism.

[0008] As a further optimized solution of the utility model, the Y-axis slide has two movable ends, and the distance between the two movable ends is adjustable. The workpiece positioning mechanism is divided into a first part and a second part, and the first part and the second part are respectively installed on the two movable ends of the Y-axis slide.

[0009] As a further optimized solution of the utility model, the first part and the second part of the workpiece positioning mechanism are respectively arranged as a dividing head and a self-locking tailstock, the workpiece is arranged between the dividing head and the self-locking tailstock, and the workpiece, the dividing head and the self-locking tailstock are arranged in a central position.

[0010] As a further optimized solution of the utility model, the grinding mechanism includes an electric spindle and a grinding wheel. The electric spindle is installed on the movable end of the lifting mechanism, the grinding wheel is installed on the movable end of the electric spindle, and the axis of the electric spindle is perpendicular to the axis of the lifting mechanism.

[0011] As a further optimized solution of the utility model, a swivel column is installed on the movable end of the lifting mechanism, one end of the swivel column is driven by a motor, and the other end of the swivel column extends downward and is fixedly connected to the electric spindle.

[0012] As a further optimized solution of the utility model, it also includes a grinding wheel magazine arranged behind the grinding mechanism, a turntable is rotatably installed inside the grinding wheel magazine, a bracket for placing the grinding wheel is installed on the turntable, the front of the grinding wheel magazine has an opening, the bracket and the grinding wheel thereon are driven to the outside of the grinding wheel magazine by the turntable, and the grinding wheel on the bracket is selected and switched by the electric spindle.

[0013] As a further optimized solution of the utility model, the top of the bracket has a groove adapted to the grinding wheel shaft, the opening of the groove faces upward, the grinding wheel shaft is inserted into the groove from top to bottom, and the movable end of the electric spindle is connected to the grinding wheel shaft through hydraulic self-priming.

[0014] As a further optimized solution of the utility model, a fixing frame is installed at the bottom of the inner cavity of the grinding wheel magazine, and the bottom end of the turntable is rotatably connected to the fixing frame and driven by a motor.

[0015] The multi-axis linkage CNC tool grinder proposed by the utility model has the following beneficial effects:

[0016] (i) The combined design of the Y-axis slide and the workpiece positioning mechanism not only facilitates the positioning of the workpiece, but also allows the left-right distance of the workpiece to be adjusted along the Y-axis. The X-axis slide drives the lifting mechanism and the grinding mechanism to move forward and backward along the X-axis to adjust the distance between the grinding mechanism and the workpiece, thereby facilitating the forward and reverse continuous grinding of the workpiece and improving the actual processing efficiency and processing accuracy;

[0017] (ii) A rotary column driven by a motor is installed on the movable end of the lifting mechanism, and the rotary column is used to drive the grinding mechanism to rotate so that the grinding mechanism can perform 360° rotary grinding on the workpiece. A turntable driven by a motor is installed inside the grinding wheel magazine, and the turntable drives the upper bracket and spare grinding wheel to be transferred to the outside of the grinding wheel magazine so that the electric spindle can select and assemble the spare grinding wheel on the bracket, thereby realizing automatic switching of the grinding wheel, thereby ensuring grinding efficiency and quality.

[0018] 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

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a front structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the grinding wheel magazine of the utility model.

[0022] Description of the drawings: 1. Workbench; 2. Y-axis slide; 21. First slide block; 22. Second slide block; 3. Workpiece positioning mechanism; 31. Dividing head; 32. Self-locking tailstock; 4. Bridge beam; 5. X-axis slide; 6. Lifting mechanism; 7. Grinding mechanism; 71. Electric spindle; 72. Grinding wheel; 8. Grinding wheel magazine; 9. Rotary column; 10. Fixed frame; 11. Turntable; 12. Bracket. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] See also Figure 1-Figure 3 , a multi-axis linkage CNC tool grinder, comprising a workbench 1, a Y-axis slide 2, a workpiece positioning mechanism 3, a bridge beam 4, an X-axis slide 5, a lifting mechanism 6, and a grinding mechanism 7;

[0029] The Y-axis slide 2 is installed on one side of the upper end surface of the workbench 1, and the workpiece positioning mechanism 3 is installed on the movable end of the Y-axis slide 2. The workpiece positioning mechanism 3 is driven by the Y-axis slide 2 to move along the Y-axis so as to adjust the longitudinal position of the workpiece;

[0030] The bridge beam 4 is installed on the other side of the upper end surface of the workbench 1, the X-axis slide 5 is installed on the bridge beam 4, the lifting mechanism 6 is installed on the movable end of the X-axis slide 5, and the grinding mechanism 7 is installed on the movable end of the lifting mechanism 6. The X-axis slide 5 is suspended by the bridge beam 4, and then the lifting mechanism 6 is driven by the X-axis slide 5 to move forward and backward along the X-axis, so as to adjust the distance between the grinding mechanism 7 and the workpiece, which is convenient for the actual grinding operation;

[0031] Specifically, the Y-axis slide 2 has two movable ends, and the distance between the two movable ends is adjustable. The workpiece positioning mechanism 3 is divided into a first part and a second part, and the first part and the second part are respectively installed on the two movable ends of the Y-axis slide 2;

[0032] Furthermore, the first part and the second part of the workpiece positioning mechanism 3 are respectively arranged as a dividing head 31 and a self-locking tailstock 32, the workpiece is arranged between the dividing head 31 and the self-locking tailstock 32, and the workpiece, the dividing head 31, and the self-locking tailstock 32 are arranged in a central position;

[0033] Furthermore, the two movable ends of the Y-axis slide 2 are respectively a first slider 21 and a second slider 22, a dividing head 31 is mounted on the first slider 21, and a self-locking tailstock 32 is mounted on the second slider 22. The first slider 21 and the second slider 22 are moved closer to or farther away from each other to adjust the spacing between the dividing head 31 and the self-locking tailstock 32, so as to facilitate clamping and fixing workpieces of different specifications. After the workpiece is fixed, the first slider 21 and the second slider 22 can move in the same direction to drive the workpiece to move left and right, so as to facilitate grinding of different positions of the workpiece to different degrees, and to easily control the grinding accuracy.

[0034] Specifically, the grinding mechanism 7 includes an electric spindle 71 and a grinding wheel 72. The electric spindle 71 is mounted on the movable end of the lifting mechanism 6. The grinding wheel 72 is mounted on the movable end of the electric spindle 71. The axis of the electric spindle 71 is perpendicular to the axis of the lifting mechanism 6.

[0035] It should be noted that after a period of use, the grinding wheel will be damaged. The spindle housing of the dividing head 31 is provided with a dresser, which can perform online dressing on the grinding wheel 72;

[0036] Furthermore, the lifting mechanism 6 can adopt a lifting structure such as hydraulic lifting, linear motor or screw in the prior art, and preferably a linear motor is used here, and the grinding mechanism 7 is driven by the linear motor to move along the Z-axis direction;

[0037] Furthermore, a rotary column 9 is installed on the movable end of the lifting mechanism 6, one end of the rotary column 9 is driven by a motor, and the other end of the rotary column 9 extends downward and is fixedly connected to the electric spindle 71. The rotary column 9 and the electric spindle 71 are driven by the motor to rotate synchronously, so as to drive the grinding mechanism 7 to perform 360-degree rotary grinding on the workpiece;

[0038] Specifically, the grinding machine also includes a grinding wheel magazine 8 arranged behind the grinding mechanism 7, a turntable 11 is rotatably installed inside the grinding wheel magazine 8, a bracket 12 for placing a grinding wheel is installed on the turntable 11, and the front of the grinding wheel magazine 8 has an opening, and the bracket 12 and the grinding wheel thereon are driven to transfer to the outside of the grinding wheel magazine 8 by the turntable 11, and the grinding wheel on the bracket 12 is selected and switched by the electric spindle 71;

[0039] Furthermore, the turntable 11 is disc-shaped, and the number of the brackets 12 is multiple and evenly distributed along the circumference of the upper end surface of the turntable 11. Through the design of multiple brackets 12, grinding wheels of various specifications can be placed, so that subsequent grinding wheels can be automatically switched according to actual needs;

[0040] Furthermore, the outer periphery of the turntable 11 has a section, so that the turntable 11 is an incomplete disc, and the opening of the grinding wheel magazine 8 has a closed automatic door structure. When the grinding wheel is not switched, the section of the turntable 11 is opposite to the opening of the grinding wheel magazine 8, and the automatic door is closed. When the grinding wheel needs to be switched, the automatic door is opened, and the turntable 11 rotates, so that the arc portion of the outer periphery of the turntable 11 moves to the outside of the grinding wheel magazine 8, thereby driving the bracket 12 and the grinding wheel thereon to move to the outside of the grinding wheel magazine 8, which is convenient for the subsequent switching of the grinding wheel;

[0041] Furthermore, the top of the bracket 12 has a groove adapted to the grinding wheel shaft, the opening of the groove faces upward, the grinding wheel shaft is inserted into the groove from top to bottom, and the movable end of the electric spindle 71 is connected to the grinding wheel shaft through hydraulic self-priming;

[0042] Furthermore, a fixed frame 10 is installed at the bottom of the inner cavity of the grinding wheel magazine 8, and the bottom end of the turntable 11 is rotatably connected to the fixed frame 10 and driven by a motor;

[0043] It should be noted that the electric spindle 71 has a hydraulic self-priming function. It only needs to rotate the turntable 11 to make the grinding wheel shaft on the corresponding bracket 12 coincide with the axis of the electric spindle 71, and then drive the lifting mechanism 6 and the grinding mechanism 7 to move back and forth through the X-axis slide 5, so that the movable end of the electric spindle 71 contacts the grinding wheel shaft, and the grinding wheel shaft can be fixed by hydraulic self-priming. Similarly, the grinding wheel shaft can also be loosened.

[0044] In summary, the multi-axis linkage CNC tool grinder proposed in the utility model, through the combined design of the Y-axis slide 2 and the workpiece positioning mechanism 3, not only facilitates the positioning of the workpiece, but also can adjust the left and right distance of the workpiece along the Y-axis, and then drives the lifting mechanism 6 and the grinding mechanism 7 to move forward and backward along the X-axis through the X-axis slide 5, so as to adjust the distance between the grinding mechanism 7 and the workpiece, thereby facilitating the forward and reverse continuous grinding of the workpiece and improving the actual processing efficiency and processing accuracy; by installing a rotary column 9 driven by a motor on the movable end of the lifting mechanism 6, the rotary column 9 is used to drive the grinding mechanism 7 to rotate, so that the grinding mechanism 7 performs 360° rotary grinding on the workpiece, and then by installing a turntable 11 driven by a motor inside the grinding wheel magazine 8, the turntable 11 drives the upper bracket 12 and the spare grinding wheel to be transferred to the outside of the grinding wheel magazine 8, so that the electric spindle 71 can select and assemble the spare grinding wheel on the bracket 12, realize automatic switching of the grinding wheel, thereby ensuring grinding efficiency and quality.

[0045] 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 multi-axis linkage CNC tool grinder, characterized in that: It includes a workbench (1), a Y-axis slide (2), a workpiece positioning mechanism (3), a bridge beam (4), an X-axis slide (5), a lifting mechanism (6), and a grinding mechanism (7); The Y-axis slide table (2) is installed on one side of the upper end surface of the workbench (1), and the workpiece positioning mechanism (3) is installed on the movable end of the Y-axis slide table (2); The bridge crossbeam (4) is installed on the other side of the upper end surface of the workbench (1), the X-axis slide table (5) is installed on the bridge crossbeam (4), the lifting mechanism (6) is installed on the movable end of the X-axis slide table (5), and the grinding mechanism (7) is installed on the movable end of the lifting mechanism (6).

2. The multi-axis linkage CNC tool grinder according to claim 1, characterized in that: The Y-axis slide table (2) has two movable ends, and the distance between the two movable ends is adjustable. The workpiece positioning mechanism (3) is divided into a first part and a second part, and the first part and the second part are respectively mounted on the two movable ends of the Y-axis slide table (2).

3. The multi-axis linkage CNC tool grinder according to claim 2, characterized in that: The first part and the second part of the workpiece positioning mechanism (3) are respectively arranged as a dividing head (31) and a self-locking tailstock (32); the workpiece is arranged between the dividing head (31) and the self-locking tailstock (32); and the workpiece, the dividing head (31) and the self-locking tailstock (32) are arranged in a central position.

4. The multi-axis linkage CNC tool grinder according to claim 1, characterized in that: The grinding mechanism (7) comprises an electric spindle (71) and a grinding wheel (72), wherein the electric spindle (71) is mounted on the movable end of the lifting mechanism (6), and the grinding wheel (72) is mounted on the movable end of the electric spindle (71), and the axis of the electric spindle (71) and the axis of the lifting mechanism (6) are perpendicular to each other.

5. The multi-axis linkage CNC tool grinder according to claim 4, characterized in that: A rotary column (9) is installed on the movable end of the lifting mechanism (6). One end of the rotary column (9) is driven by a motor, and the other end of the rotary column (9) extends downward and is fixedly connected to the electric spindle (71).

6. The multi-axis linkage CNC tool grinder according to claim 4, characterized in that: The invention also comprises a grinding wheel magazine (8) arranged at the rear of the grinding mechanism (7), wherein a turntable (11) is rotatably installed inside the grinding wheel magazine (8), and a bracket (12) for placing a grinding wheel is installed on the turntable (11). The front of the grinding wheel magazine (8) has an opening, and the bracket (12) and the grinding wheel thereon are driven to be transferred to the outside of the grinding wheel magazine (8) by the turntable (11), and the grinding wheel on the bracket (12) is selected and switched by the electric spindle (71).

7. The multi-axis linkage CNC tool grinder according to claim 6, characterized in that: The top of the bracket (12) has a groove matched with the grinding wheel shaft, the opening of the groove faces upward, the grinding wheel shaft is inserted into the groove from top to bottom, and the movable end of the electric spindle (71) is connected to the grinding wheel shaft through hydraulic self-priming.

8. The multi-axis linkage CNC tool grinder according to claim 6, characterized in that: A fixed frame (10) is installed at the bottom of the inner cavity of the grinding wheel storehouse (8), and the bottom end of the turntable (11) is rotatably connected to the fixed frame (10) and driven by a motor.

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