Numerically-controlled machine tool capable of conducting multi-type machining

Abstract

The utility model relates to a numerical control machine tool capable of carrying out multi-type machining, which comprises a machine tool body, a stand column, a cross beam, a main shaft, a double-shaft rotary table, a tool magazine and a tool changing arm, the main shaft is installed on the cross beam and can move in a reciprocating mode in the X-axis direction and the Z-axis direction. The double-shaft rotary table is installed on the lathe bed in a sliding mode and can move in a reciprocating mode in the Y-axis direction. The tool magazine is installed on the lathe bed, and various tools including a cutting tool, a grinding tool, a polishing head and a workpiece measuring head are arranged in the tool magazine; tools are exchanged between the main shaft and the tool magazine through a tool changing arm, and the tool changing arm is mounted on the lathe bed; the main shaft can drive the various cutters to be matched with the double-shaft rotary table to conduct five-shaft linkage machining, and the five-shaft linkage machining comprises five-shaft linkage cutting machining, five-shaft linkage grinding machining, five-shaft linkage polishing and multi-angle workpiece measurement. According to the utility model, the continuity of the machining process can be effectively ensured, the machining precision and the production efficiency are improved, and the production and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of numerical control machine tools, and in particular relates to a numerical control machine tool capable of performing multi-type processing. Background Art

[0002] With the continuous improvement of precision product requirements and the application of new materials, the processing requirements for key core components of precision products are also getting higher and higher. The processing of such parts usually requires multiple types of processing procedures such as cutting, grinding, polishing, and testing to complete, and generally requires the coordination of multiple processing equipment. The large number of processing equipment not only increases production and maintenance costs, but also increases processing flow time and reduces production efficiency. At the same time, repeated clamping errors and measurement errors will also affect the processing accuracy of parts. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a CNC machine tool that can perform multiple types of processing, which can complete cutting, grinding, polishing and online measurement on one machine tool, effectively ensure the continuity of the processing process, improve processing accuracy and production efficiency, and reduce production and maintenance costs.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical solutions: a CNC machine tool capable of performing multiple types of processing, comprising a bed, a column, a beam, a spindle, a dual-axis turntable, a tool magazine and a tool changing arm, wherein the column and the beam form a gantry structure fixed on the bed; the spindle is mounted on the beam and can reciprocate along the X-axis and Z-axis directions; the dual-axis turntable is slidably mounted on the bed and can reciprocate along the Y-axis direction; the tool magazine is mounted on the bed and arranged on one side of the gantry structure; a variety of tools are installed in the tool magazine, including cutting tools, grinding tools, polishing heads and workpiece probes; tools are exchanged between the spindle and the tool magazine through a tool changing arm, which is mounted on the bed; the spindle can drive the various tools to cooperate with the dual-axis turntable to perform five-axis linkage processing, including five-axis linkage cutting processing, five-axis linkage grinding processing, five-axis linkage polishing and multi-angle workpiece measurement.

[0005] The above-mentioned CNC machine tool that can perform multiple types of processing, the dual-axis turntable includes a base, a B-axis, a swing body, a C-axis and a workbench, the base is installed on the bed through a Y-axis guide rail and a Y-axis slider, the Y-axis guide rail is fixed to the bed, the Y-axis slider and the base are fixedly connected, and the Y-axis guide rail and the Y-axis slider are slidably matched; the B-axis is installed in the base, the swing body is connected to the output end of the B-axis, and can swing back and forth around the Y-axis driven by the B-axis; the C-axis is installed in the swing body, on the one hand, it swings back and forth around the Y-axis with the swing body, on the other hand, it rotates around the Z-axis; the workbench is installed at the output end of the C-axis, and can move together with the C-axis.

[0006] The above-mentioned CNC machine tool that can perform multiple types of processing also includes a grinding wheel dresser installed on one of the swing body, bed, column and beam, which can perform online dressing on the grinding tool.

[0007] The above-mentioned CNC machine tool capable of performing multiple types of processing also includes a tool probe installed on one of the swing body, bed, column and beam, which can measure the external dimensions of the trimmed grinding tool.

[0008] The above-mentioned CNC machine tool capable of performing multiple types of processing has a fixture installed on the workbench, which can clamp and position the workpiece.

[0009] The above-mentioned CNC machine tool that can perform multiple types of processing, the tool changing arm is a linear movable structure, including a support seat, a movable guide rail, a tool changing body and a tool changing claw, the support seat is fixed on the bed, the movable guide rail is arranged parallel to the X-axis direction, and is fixed on the support seat; the tool changing body acts on the movable guide rail through a slider and can reciprocate along the movable guide rail; the tool changing claw is installed on the tool changing body and can reciprocate 180 degrees around the Z axis.

[0010] The above-mentioned CNC machine tool capable of performing multiple types of processing, the spindle is installed on the crossbeam through an X-axis moving device and a Z-axis moving device, the X-axis moving device is installed on the crossbeam, the Z-axis moving device is installed on the X-axis moving device, and the spindle is installed on the Z-axis moving device.

[0011] The above-mentioned CNC machine tool capable of performing multiple types of processing, the X-moving device comprises an X-axis guide rail, an X-axis slider, an X-axis driving device and an X-axis slide plate, the X-axis guide rail and the X-axis driving device are installed on the front side of the crossbeam, the X-axis slide plate acts on the X-axis guide rail through the X-axis slider, and is connected to the X-axis driving device, and can move left and right along the X-axis guide rail under the action of the X-axis driving device.

[0012] The above-mentioned CNC machine tool that can perform multiple types of processing, the Z-axis moving device includes a Z-axis guide rail, a Z-axis slider, a Z-axis driving device and a spindle clamping sleeve, the Z-axis guide rail and the Z-axis driving device are installed on the X-axis slide, the spindle clamping sleeve acts on the Z-axis guide rail through the Z-axis slider and is connected to the Z-axis driving device, and can move up and down along the Z-axis guide rail under the action of the Z-axis driving device; the spindle is fixed in the spindle clamping sleeve.

[0013] The above-mentioned CNC machine tool capable of performing multiple types of processing is also provided with a cooling circulation filtering device on one side of the bed.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the utility model integrates multiple tools in the tool magazine, uses the tool changing arm to realize the tool exchange between the main shaft, and combines the linkage cooperation between the main shaft and the dual-axis turntable. It can realize multiple types of processing including five-axis linkage cutting, five-axis linkage grinding, five-axis linkage polishing and online measurement on one machine tool, effectively ensuring the continuity of the processing process, improving processing accuracy and production efficiency, and reducing production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of a double-axis turntable provided in an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the tool magazine structure provided by an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the tool changing arm structure provided by an embodiment of the utility model.

[0019] Figure 5 It is a schematic diagram of the workpiece processing state provided by an embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the workpiece measurement state provided by an embodiment of the utility model.

[0021] Figure 7 It is a schematic diagram of the tool dressing state provided by an embodiment of the utility model.

[0022] Figure 8 It is a schematic diagram of the tool measurement state provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc. 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 embodiments of the present invention and simplifying the description. They 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 embodiments of the present invention.

[0025] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] Combination Figures 1 to 3 As shown, the embodiment of the utility model provides a CNC machine tool capable of performing multiple types of processing, including a bed 1, a column 2, a crossbeam 3, an X-axis slide 4, a spindle clamping sleeve 5, a spindle 6, a dual-axis turntable 7, a tool magazine 8 and a tool changing arm 9. The column 2 and the crossbeam 3 form a gantry structure fixed on the bed 1, and an X-axis guide rail 10 and an X-axis drive device 11 are fixed to the front side of the crossbeam 3. The X-axis slide 4 acts on the X-axis guide rail 10 through a slider and is connected to the X-axis drive device 11, and can move left and right along the X-axis guide rail 10 under the action of the X-axis drive device 11. The front side of the X-axis slide 4 is fixed to a Z-axis guide rail 12 and a Z-axis drive device 13, and the spindle clamping sleeve 5 acts on the Z-axis guide rail 12 through a slider and is connected to the Z-axis drive device 13, and can move up and down along the Z-axis guide rail 12 under the action of the Z-axis drive device 13. The spindle 6 is fixed in the spindle clamping sleeve 5 and can move together with the spindle clamping sleeve 5. The spindle 6 is used to install the tool.

[0027] The bed 1 is fixed with a Y-axis guide rail 14 and a Y-axis driving device 15. The double-axis turntable 7 acts on the Y-axis guide rail 14 through a slider and is connected to the Y-axis driving device 15. It can move forward and backward along the Y-axis guide rail 14 under the action of the Y-axis driving device 15. The double-axis turntable 7 includes a base 71, a B-axis 72, a swinging body 73, a C-axis 74 and a workbench 75. The base 71 acts on the Y-axis guide rail 14. The B-axis 72 is installed in the base 71. The swinging body 73 is fixed to the output end of the B-axis 72 and can swing back and forth around the Y-axis driven by the B-axis 72. The C-axis 74 is installed in the swinging body 73. On the one hand, it swings back and forth around the Y-axis with the swinging body 73, and on the other hand, it rotates around the Z-axis. The workbench 75 is installed at the output end of the C-axis 74 and can move with the C-axis 74. A fixture 16 is also fixed on the workbench 75 for mounting a workpiece. The five-axis linkage processing of the workpiece can be realized by the spindle 6 driving the tool to move linearly along the X and Z directions, and the dual-axis turntable 7 driving the workpiece to move linearly along the Y axis direction and rotate around the Y and Z axes.

[0028] The tool magazine 8 is fixed on the left side of the bed 1. The tool magazine 8 is equipped with a workpiece probe 20 and grinding tools 21 of various sizes, cutting tools 22 and polishing heads 23. The tool change arm 9 includes a support seat 91, a movable guide rail 92, a tool change body 93 and a tool change claw 94. The support seat 91 is fixed on the bed 1. The movable guide rail 92 is arranged parallel to the X-axis direction and fixed on the support seat 91; the tool change body 93 acts on the movable guide rail 92 through a slider and can move left and right along the movable guide rail 92; the tool change claw 94 is installed on the tool change body 93 and can reciprocate 180 degrees around the Z axis. The tool change arm 9 can realize the tool exchange between the tool magazine 8 and the spindle 6. Specifically, the tool magazine 8 completes the target tool through its own rotation movement, and the tool change body 93 drives the tool change claw 94 to move leftward along the X direction to grab the target tool. At the same time, the spindle 6 cooperates with the tool change arm 9 to move in the X-axis direction and the Z-axis direction respectively, so as to realize the tool change action.

[0029] When the spindle 6 is equipped with different tools, different types of processing can be achieved on the workpiece. When the spindle 6 is equipped with the cutting tool 22, the grinding tool 21 and the polishing head 23, the spindle 6 and the dual-axis turntable 7 move in coordination, and five-axis linkage cutting, five-axis linkage grinding and five-axis linkage polishing can be achieved on the workpiece. Figure 5 The display shows the five-axis grinding process status. Figure 6 As shown, when the spindle 6 is replaced with the workpiece probe 20, the spindle 6 and the dual-axis turntable 7 move in coordination to achieve measurement of the outer dimensions of the workpiece.

[0030] In order to ensure the contour accuracy and dimensional accuracy of the grinding tool 21 during the grinding process, the utility model is also provided with a grinding wheel dresser 18 and a tool probe 19, which can respectively realize online dressing of the grinding tool 21 and measure the external dimensions of the dressed grinding tool 21.

[0031] In the embodiment of the utility model, the grinding wheel dresser 18 and the tool probe 19 are fixedly mounted on the side of the swing body 73. When the grinding tool 21 needs to be dressed, Figure 7 As shown, the spindle 6 drives the grinding tool 21 to move along the X-axis direction and the Z-axis direction to make it close to the grinding wheel dresser 18, thereby realizing the dressing of the grinding tool 21. After the dressing is completed, the spindle 6 drives the grinding tool to move to a safe position, and the swing body 73 of the dual-axis turntable 7 rotates and swings to make the tool probe 19 rotate to a specified position. The spindle 6 drives the grinding tool 21 to move along the X-axis direction and the Z-axis direction again, so that the grinding tool 21 is close to the tool probe 19, and the grinding tool 21 is measured to facilitate the compensation of its size.

[0032] The embodiment of the utility model is explained by taking the example that the grinding wheel dresser 18 and the tool probe 19 are both installed on the side of the swing body 73. Of course, the grinding wheel dresser 18 and the tool probe 19 can also be installed at other positions of the CNC machine tool, such as the bed 1, the column 2 and the beam 3, and the working principle is basically the same as that of the embodiment of the utility model. The difference is that the installation position and angle of the tool probe 19 can be fixed in advance, and there is no need for the swing body 73 to drive the tool probe 19 to rotate.

[0033] A cooling filter circulation device 17 is also provided on the left side of the bed 1, which can provide a grinding coolant circulation guarantee for the utility model, effectively ensure the stability of the grinding and polishing processing, and at the same time ensure the surface quality of the workpiece.

[0034] The utility model can realize various types of processing on a single machine tool. For example, when cutting and forming a blank, a cutting tool 22 of corresponding size is installed on the spindle 6 through the tool changing arm 9, and the cutting and forming of the workpiece can be completed through the five-axis linkage of the spindle 6 and the dual-axis turntable 7. For parts with relatively high precision requirements, when further grinding is required, the corresponding grinding tool 21 is replaced on the spindle 6 through the tool changing arm 9, and the grinding of different features of the workpiece can be achieved through the five-axis linkage of the spindle 6 and the dual-axis turntable 7. After the grinding is completed, if further polishing is required, it is only necessary to replace the polishing head in the tool magazine 8 on the spindle 6, and the five-axis linkage of the spindle 6 and the dual-axis turntable 7 can be completed. After all is completed, the spindle 6, the tool magazine 8 and the tool changing arm 9 cooperate to change the tool, and the workpiece probe 20 is replaced on the spindle 6, and the dual-axis turntable 7 is coordinated to rotate and swing to achieve the measurement of the outer dimensions of the workpiece. At this point, the entire process of processing the workpiece is completed, without the need for multiple machine tools and repeated clamping, which effectively reduces the cost of use and maintenance, reduces the processing flow time, ensures the continuity of the processing, and improves the processing efficiency; at the same time, it also avoids the introduction of repeated clamping errors and measurement errors, and ensures processing accuracy.

[0035] Although the utility model is described in detail above, the utility model is not limited thereto, and those skilled in the art can make various modifications according to the principle of the utility model. Therefore, all modifications made according to the principle of the utility model should be understood to fall within the protection scope of the utility model.

Claims

1. A CNC machine tool capable of performing multiple types of processing, characterized in that: It includes a bed, a column, a crossbeam, a spindle, a dual-axis turntable, a tool magazine and a tool changing arm. The column and the crossbeam form a gantry structure fixed on the bed; the spindle is installed on the crossbeam and can reciprocate along the X-axis and Z-axis directions; the dual-axis turntable is slidably installed on the bed and can reciprocate along the Y-axis direction; the tool magazine is installed on the bed and arranged on one side of the gantry structure; a variety of tools are installed in the tool magazine, including cutting tools, grinding tools, polishing heads and workpiece probes; the spindle and the tool magazine exchange tools through the tool changing arm, which is installed on the bed; the spindle can drive the various tools to cooperate with the dual-axis turntable to perform five-axis linkage processing, including five-axis linkage cutting processing, five-axis linkage grinding processing, five-axis linkage polishing and multi-angle workpiece measurement.

2. A CNC machine tool capable of performing multiple types of processing according to claim 1, characterized in that: The dual-axis turntable includes a base, a B-axis, a swinging body, a C-axis and a workbench. The base is installed on the bed through a Y-axis guide rail and a Y-axis slider. The Y-axis guide rail is fixed to the bed. The Y-axis slider and the base are fixedly connected. The Y-axis guide rail and the Y-axis slider are slidably matched. The B-axis is installed in the base, and the swinging body is connected to the output end of the B-axis, and can swing back and forth around the Y-axis driven by the B-axis. The C-axis is installed in the swinging body, and on the one hand, it swings back and forth around the Y-axis with the swinging body, and on the other hand, it rotates around the Z-axis. The workbench is installed at the output end of the C-axis and can move together with the C-axis.

3. A CNC machine tool capable of performing multiple types of processing according to claim 2, characterized in that: The numerically controlled machine tool also includes a grinding wheel dresser, which is installed on one of the swing body, the bed, the column and the crossbeam, and can perform online dressing on the grinding tool.

4. A CNC machine tool capable of performing multiple types of processing according to claim 3, characterized in that: The CNC machine tool also includes a tool probe, which is installed on one of the swing body, the bed, the column and the crossbeam, and can measure the external dimensions of the trimmed grinding tool.

5. A CNC machine tool capable of performing multiple types of processing according to claim 4, characterized in that: The workbench is equipped with a fixture to clamp and position the workpiece.

6. A CNC machine tool capable of performing multiple types of processing according to any one of claims 1 to 5, characterized in that: The tool changing arm is a linear movable structure, including a support seat, a movable guide rail, a tool changing body and a tool changing claw. The support seat is fixed on the bed, and the movable guide rail is arranged parallel to the X-axis direction and fixed on the support seat; the tool changing body acts on the movable guide rail through a slider and can move back and forth along the movable guide rail; the tool changing claw is installed on the tool changing body and can rotate back and forth 180 degrees around the Z axis.

7. A CNC machine tool capable of performing multiple types of processing according to claim 6, characterized in that: The spindle is installed on the crossbeam through an X-axis moving device and a Z-axis moving device, the X-axis moving device is installed on the crossbeam, the Z-axis moving device is installed on the X-axis moving device, and the spindle is installed on the Z-axis moving device.

8. A CNC machine tool capable of performing multiple types of processing according to claim 7, characterized in that: The X-moving device includes an X-axis guide rail, an X-axis slider, an X-axis driving device and an X-axis slide plate. The X-axis guide rail and the X-axis driving device are installed on the front side of the beam. The X-axis slide plate acts on the X-axis guide rail through the X-axis slider and is connected to the X-axis driving device. It can move left and right along the X-axis guide rail under the action of the X-axis driving device.

9. A CNC machine tool capable of performing multiple types of processing according to claim 8, characterized in that: The Z-axis moving device includes a Z-axis guide rail, a Z-axis slider, a Z-axis driving device and a spindle clamping sleeve. The Z-axis guide rail and the Z-axis driving device are installed on the X-axis slide plate. The spindle clamping sleeve acts on the Z-axis guide rail through the Z-axis slider and is connected to the Z-axis driving device. It can move up and down along the Z-axis guide rail under the action of the Z-axis driving device; the spindle is fixed in the spindle clamping sleeve.

10. A CNC machine tool capable of performing multiple types of processing according to claim 9, characterized in that: A cooling circulation filtering device is also arranged on one side of the bed.

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