Bidirectional chip removal type machine tool base

Abstract

The utility model relates to the technical field of machine tool bases, in particular to a two-way chip removal type machine tool base which comprises a machine tool base body with the upper end fixedly connected with a workpiece main shaft and a cross beam and used for bearing a combined machining machine tool and collecting waste chips generated during work of the machining machine tool. A plurality of cross beam mounting structures are formed in the connecting part of the machine tool base and the cross beam, and each cross beam mounting structure is a sunken groove; a Y-direction first guide rail and a Y-direction second guide rail are symmetrically arranged on the two sides of the symmetry axis of the machine tool base. The chip removal slopes comprise the first chip removal slope and the second chip removal slope which are symmetrically arranged on the two sides of the symmetry axis of the surface of the machine tool base and used for collecting chips, a chip remover and a weight sensor are installed below the first chip removal slope and the second chip removal slope, and a vibration detector is installed in the machine tool base. The scrap discharging standard of the scrap discharging device is adjusted by analyzing the vibration degree of the machine tool, so that the scraps are prevented from flying down, and the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool bases, in particular to a two-way chip removal type machine tool base. Background Art

[0002] During the machining process of large machine tools, a large amount of waste chips will be generated. The waste chips will accumulate in various corners of the machine body, affecting the moving accuracy and stability of the saddle on the guide rail, and further affecting the machining accuracy of the machine tool. When cleaning the waste chips, the machine tool needs to be paused first and then the waste chips are cleaned manually, which is inconvenient to use and wastes time.

[0003] Chinese Patent Application Publication No.: CN209831070U discloses a chip removal structure for a machine tool base. The chip removal structure for the machine tool base includes: a base and a partition plate. A chip removal groove is provided on the base, and the chip removal groove includes a chip collection part and a chip discharge part. The partition plate covers the chip removal groove on the base for isolating the chip debris of the machine tool from the chip removal groove. The negative surface of the partition plate fits with the surface of the chip removal groove, and the positive surface of the partition plate is used for draining the chip debris. The part of the partition plate covering the bottom surface of the chip removal groove is the main body of the partition plate, and the edge of the main body of the partition plate extends outward to the outside of the chip removal groove, and the formed extension part is fixedly connected with the base. The advantages of adopting the technical solution of the utility model are: by covering the chip removal groove on the machine tool base with a partition plate, the surface of the chip removal groove is protected, and the corrosion of the chip removal groove surface by the chip debris of the machine tool is eliminated.

[0004] It can be seen that the above technical solution solves the problem of not needing to pause the machine tool and then manually clean the waste chips, but there are still the following problems: the chip removal groove in the above technical solution is a fixed structure. Due to the vibration caused by machine tool operation or other reasons, the waste chips may not meet the chip discharge requirements and fall on the plane, and the waste chips are not easy to be centrally collected. The accumulated waste chips may affect the machining accuracy of the machine tool, and during the machining process, the inaccurate collection of waste chips on the machine tool base may also cause the waste chips to fall and result in inaccurate machining accuracy. Summary of the Utility Model

[0005] Therefore, the utility model provides a two-way chip removal type machine tool base to overcome the problem in the prior art that due to the vibration generated by the machining machine tool, the chip cleaning process is not accurate enough, resulting in the waste chips falling on the plane of the machine tool base and causing inaccurate machining accuracy.

[0006] To achieve the above object, on the one hand, the utility model provides a two-way chip removal type machine tool base, including:

[0007] A machine tool base, the upper end of which is respectively fixedly connected with a workpiece spindle and a cross beam, for carrying a composite machining machine tool and collecting the waste chips generated during the operation of the machining machine tool;

[0008] A number of cross beam installation structures are provided at the connection part between the machine tool base and the cross beam, and each cross beam installation structure is a sunken groove;

[0009] On both sides of the symmetry axis of the machine tool base, there are symmetrically arranged first Y-axis guide rails and second Y-axis guide rails. The installation surface of the machine tool base and the crossbeam is concave-shaped, and the Y-axis guide rail installation surface extends into the groove of the concave shape.

[0010] Chip removal inclined planes, which include a first chip removal inclined plane and a second chip removal inclined plane symmetrically arranged on both sides of the symmetry axis on the surface of the machine tool base. The inclined plane directions of the first chip removal inclined plane and the second chip removal inclined plane extend from high to low along the side close to the drive motor to the chip removal device for collecting chips. A chip removal device and a weight sensor are installed below the first chip removal inclined plane and the second chip removal inclined plane, and a vibration detector is installed inside the machine tool base.

[0011] Further, the inclined plane angles of both the first chip removal inclined plane and the second chip removal inclined plane are 45 degrees. Between the first Y-axis guide rail and the second Y-axis guide rail is a sunken rectangular cavity. There are wall panels around the cavity, a bottom plate at the bottom, and it is open at the top.

[0012] Further, the upper parts of the right outer side of the first Y-axis guide rail and the left outer side of the second Y-axis guide rail extend obliquely to the chip removal inclined plane.

[0013] Further, a first chip removal inclined plane is arranged at the position of the outer side edge of the first inclined plane of the machine tool base close to the first Y-axis guide rail, and a second chip removal inclined plane is arranged at the position of the outer side edge of the second inclined plane of the machine tool base close to the second Y-axis guide rail;

[0014] Among them, the sides of the first chip removal inclined plane and the second chip removal inclined plane away from the first Y-axis guide rail and the second Y-axis guide rail are set as vertical planes, and a chip removal device is installed below the first chip removal inclined plane and the second chip removal inclined plane.

[0015] Further, a weight sensor is arranged below the chip removal device for detecting the weight of the waste chips inside the chip removal device.

[0016] Further, a vibration detector is arranged inside the machine tool base for detecting the vibration data of the machine tool base.

[0017] Further, the machine tool base is provided with a Y-axis lead screw, and the Y-axis lead screw is arranged inside the first Y-axis guide rail and / or the second Y-axis guide rail.

[0018] Further, the Y-axis lead screw is driven by a Y-axis drive motor, and the drive motor is arranged in the middle and rear part of the base, at the concave position of the concave-shaped crossbeam installation surface.

[0019] Further, the vibration detector is connected to the control mechanism of the chip removal device, and the control mechanism controls the chip removal device to discharge waste chips according to the data of the vibration detector and the data of the weight sensor.

[0020] Further, the chip conveyor is tightly connected to the lower parts of the first chip discharging slope and the second chip discharging slope through a fixing mechanism.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: during the machining process, the generated waste chips can slide down through the slope of the workpiece spindle to the upper part of the chip discharging slope and then to the chip conveyor below the chip discharging slope, so that the waste chips generated during machining naturally fall under the action of gravity, avoiding the accumulation of waste chips in the machine tool base and its surrounding areas, and at the same time avoiding the influence of waste chips on the machining accuracy of the machine tool and the operation of the working spindle, reducing the risk of machine tool failures caused by waste chips. Under the standard of its own gravity, the iron chips fall into the first chip discharging slope through the slope and then fall into the chip conveyor installed below the first chip discharging slope and the second chip discharging slope.

[0022] Further, when the weight of the waste chips detected by the weight sensor below the chip conveyor reaches the waste chip discharging standard, it is determined that the chip conveyor discharges the waste chips. However, due to the different degrees of vibration generated during the operation of the machine tool, the waste chips may slide into the chip conveyor that is about to reach the discharging standard due to excessive vibration and then fall outside the chip conveyor, affecting the machining accuracy of the machine tool and the operation state of the working spindle. At this time, a vibration detector is added inside the base to determine the vibration amplitude and timely adjust the waste chip discharging standard. By the above method, the phenomenon that the machining accuracy of the machine tool is low due to the waste chips spilling outside the chip conveyor caused by the large vibration generated during the operation of the machine tool is avoided.

[0023] Further, by arranging the lead screw inside the guide rail, the stability of the machine tool can be improved. The installation inside can reduce the suspension length of the lead screw, reduce the bending and vibration of the lead screw, thereby providing more stable driving and positioning performance. Installing the driving motor at the rear of the base can transmit power to the lead screw more effectively. The shorter transmission path can reduce energy loss and transmission error, improve the driving efficiency and accuracy. Installing the driving motor at the rear of the base is convenient for maintenance and repair. Maintenance personnel can more easily access and repair the driving motor without interfering with the operation area of the machine tool.

[0024] Further, during the machining process, the lower parts of the first chip discharging slope and the second chip discharging slope are tightly connected to the chip conveyor. If there are gaps between the first chip discharging slope and the second chip discharging slope and the chip conveyor, it may cause the waste chips to spill along the gaps to the bottom of the machine tool due to the gaps between the first chip discharging slope and the second chip discharging slope and the chip conveyor, resulting in inaccurate machining accuracy of the machine tool. By adjusting the chip discharging standard of the chip conveyor in real time, the phenomenon that the waste chips spill along the gaps to the bottom of the machine tool and cause inaccurate machining accuracy of the machine tool can be avoided. Description of the Drawings

[0025] Figure 1Schematic three - dimensional structure diagram of the machine tool main body according to an embodiment of the present utility model;

[0026] Figure 2 According to an embodiment of the present utility model Figure 1 Enlarged schematic diagram of the structure of part A;

[0027] Figure 3 Schematic diagram of the structure of a two - way chip - discharging machine tool base according to an embodiment of the present utility model;

[0028] In the figure: A, machine tool base; 1, first Y - direction guide rail; 2, second Y - direction guide rail; 3, lead screw; 4, first chip - discharging inclined plane; 5, rectangular cavity; 6, driving motor; 7, second chip - discharging inclined plane; 8, workpiece spindle; 9, crossbeam; 10, chip discharger; 11, first inclined plane; 12, symmetry axis; 13, crossbeam mounting structure; 14, groove. Detailed implementation manners

[0029] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present utility model and do not limit the protection scope of the present utility model.

[0031] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0032] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] Please refer to Figures 1 - 3 As shown, the two - way chip - discharging machine tool base includes:

[0034] The machine tool base A is fixedly connected to the workpiece spindle 8 and the crossbeam 9 at its upper end respectively, for carrying the compound machining machine tool and collecting the waste chips generated during the operation of the machining machine tool;

[0035] A number of crossbeam installation structures 13 are provided at the connection part between the machine tool base and the crossbeam, and each crossbeam installation structure is a sunken groove;

[0036] On both sides of the symmetry axis of the machine tool base, the first Y-direction guide rail 1 and the second Y-direction guide rail 2 are symmetrically arranged. The installation surface of the machine tool base and the crossbeam is concave-shaped, and the Y-direction guide rail installation surface extends into the concave-shaped groove 14;

[0037] The chip removal inclined plane includes a first chip removal inclined plane 4 and a second chip removal inclined plane 7 symmetrically arranged on both sides of the symmetry axis 12 on the surface of the machine tool base. The inclined plane directions of the first chip removal inclined plane and the second chip removal inclined plane extend from high to low along the side close to the drive motor to the chip removal device for collecting chips. A chip removal device 10 and a weight sensor (not shown in the figure) are installed below the first chip removal inclined plane and the second chip removal inclined plane, and a vibration detector (not shown in the figure) is installed inside the machine tool base.

[0038] Among them, a sunken rectangular cavity 5 is formed between the first Y-direction guide rail and the second Y-direction guide rail. There are wall panels around the cavity, a bottom plate at the bottom, and it is open at the top; the upper parts of the right outer side of the first Y-direction guide rail and the left outer side of the second Y-direction guide rail extend obliquely to the chip removal inclined plane; the first chip removal inclined plane 4 is arranged at the position of the outer side edge of the first inclined plane 11 of the machine tool base close to the first Y-direction guide rail, and the second chip removal inclined plane 7 is arranged at the position of the outer side edge of the second inclined plane (symmetrically arranged with the first inclined plane along the symmetry axis 12, not shown in the figure) of the machine tool base close to the second Y-direction guide rail; among them, the inclined plane angles of the first chip removal inclined plane and the second chip removal inclined plane are both 45 degrees, and a chip removal device 10 is installed below the first chip removal inclined plane 4 and the second chip removal inclined plane 7.

[0039] During the machining process, the generated waste chips can slide down through the inclined plane of the workpiece spindle to above the chip removal inclined plane and then slide down to the chip removal device below the chip removal inclined plane, enabling the waste chips generated by machining to fall naturally under the action of gravity, avoiding the accumulation of waste chips in the machine tool base and its surrounding areas, and at the same time avoiding the influence of waste chips on the machining accuracy of the machine tool and the operation of the working spindle, reducing the risk of machine tool failures caused by waste chips. Under its own gravity standard, the iron chips fall into the first chip removal inclined plane through the inclined plane and then fall into the chip removal device installed below the first chip removal inclined plane and the second chip removal inclined plane.

[0040] In implementation, the inclination angle of the inclined surface of the wallboard around the first chip removal inclined surface is not specifically limited, as long as the waste chips generated during the machining process can fall onto the first chip removal inclined surface 4 and the second chip removal inclined surface 7 due to their own gravity, which will not be elaborated here.

[0041] Specifically, a weight sensor is provided below the chip conveyor to detect the weight of the waste chips inside the chip conveyor, and a vibration detector is provided inside the machine tool base to detect the vibration data of the machine tool base.

[0042] When the weight of the waste chips detected by the weight sensor below the chip conveyor reaches the chip discharge standard, it is determined that the chip conveyor discharges the waste chips. However, since the machine tool generates vibrations of different degrees during operation, the waste chips may accumulate on the chip removal inclined surface due to excessive vibrations, and when the waste chips that are almost up to the discharge standard slide into the chip conveyor, they may fall outside the chip conveyor, affecting the machining accuracy of the machine tool and the operating state of the working spindle. At this time, by adding a vibration detector inside the base to determine the vibration amplitude and timely adjust the chip discharge standard, the phenomenon of low machining accuracy of the machine tool caused by waste chips spilling outside the chip conveyor due to large vibrations generated during the operation of the machine tool is avoided through the above method.

[0043] In implementation, the chip discharge standard of the waste chips is determined whether to discharge the waste chips according to the data of the weight sensor below the chip conveyor.

[0044] In implementation, the weight detector and the vibration detector are not specifically limited, as long as they can realize the adjustment of the chip discharge standard of the chip conveyor by detecting the vibrations generated during the machining process to avoid the scattering of waste chips, which will not be elaborated here.

[0045] The machine tool base is provided with a Y-direction lead screw 3, the Y-direction lead screw is arranged inside the Y-direction first guide rail 1 and / or the Y-direction second guide rail 2, the Y-direction lead screw 3 is driven by a Y-direction drive motor 6, and the drive motor 6 is arranged in the middle and rear part of the base, at the concave position of the concave-shaped crossbeam installation surface.

[0046] By arranging the lead screw inside the guide rail, the stability of the machine tool can be improved. The inner installation can reduce the hanging length of the lead screw, reduce the bending and vibration of the lead screw, thereby providing more stable driving and positioning performance. By installing the drive motor at the rear of the base, the power can be transmitted to the lead screw more effectively. The shorter transmission path can reduce energy loss and transmission error, improve the driving efficiency and accuracy. By installing the drive motor at the rear of the base, it is convenient for maintenance and repair. Maintenance personnel can more easily access and repair the drive motor without interfering with the operation area of the machine tool.

[0047] The vibration detector is connected to a control mechanism (not shown in the figure) of the chip discharger. The control mechanism adjusts the chip discharging standard of the chip discharger according to the data of the vibration detector. The chip discharger is tightly connected to the lower ends of the first chip discharging slope and the second chip discharging slope through a fixing mechanism (not shown in the figure).

[0048] In implementation, no specific limitations are imposed on the control mechanism and the fixing mechanism, as long as it is possible to adjust the chip discharging standard of the chip discharger by detecting the vibration generated during the machining process to avoid the scattering of waste chips and the chip discharger is fixedly connected to the first chip discharging slope and the second chip discharging slope. Details are not elaborated here.

[0049] During the machining process, the lower parts of the first chip discharging slope and the second chip discharging slope are tightly connected to the chip discharger. If there are gaps between the first chip discharging slope and the second chip discharging slope and the chip discharger, waste chips may fall to the bottom of the machine tool along the gaps, resulting in inaccurate machining accuracy of the machine tool. By adjusting the chip discharging standard of the chip discharger in real time, it is possible to avoid the phenomenon that waste chips fall to the bottom of the machine tool along the gaps, causing inaccurate machining accuracy of the machine tool.

[0050] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A bidirectional chip removal machine tool base, characterized in that: include: The machine tool base, the upper end of which is fixedly connected to the workpiece spindle and the crossbeam, is used to carry the composite processing machine tool and collect the waste chips generated by the processing machine tool; A plurality of beam mounting structures are provided at the connection part between the machine tool base and the beam, and each beam mounting structure is a sunken groove; A symmetrically arranged first Y-direction guide rail and a second Y-direction guide rail are arranged on both sides of the symmetry axis of the machine tool base. The machine tool base and the beam mounting surface are in a concave shape, and the Y-direction guide rail mounting surface extends into the concave groove. The chip removal slope comprises a first chip removal slope and a second chip removal slope symmetrically arranged on both sides of the symmetry axis of the surface of the machine tool base. The slope direction of the first chip removal slope and the second chip removal slope is to extend from high to low along the side close to the drive motor to the chip conveyor for collecting chips. The chip conveyor and the weight sensor are installed below the first chip removal slope and the second chip removal slope, and a vibration detector is installed inside the machine tool base.

2. The bidirectional chip removal machine tool base according to claim 1, characterized in that: The first chip removal slope and the second chip removal slope have slope angles of 45 degrees. A sunken rectangular cavity is located between the first Y-direction guide rail and the second Y-direction guide rail. The cavity has wall panels around it, a bottom plate at the bottom, and is open at the top.

3. The bidirectional chip removal machine tool base according to claim 2, characterized in that: The right outer side of the first Y-direction guide rail and the upper left outer side of the second Y-direction guide rail extend in an inclined plane to a chip removal inclined plane.

4. The bidirectional chip removal machine tool base according to claim 3, characterized in that: A first chip removal slope is provided at the outer side edge of the first slope of the machine tool base close to the first Y-direction guide rail, and a second chip removal slope is provided at the outer side edge of the second slope of the machine tool base close to the second Y-direction guide rail; Wherein, the first chip removal slope and the second chip removal slope are arranged at a side away from the first Y-direction guide rail and the second Y-direction guide rail as vertical surfaces, and chip conveyors are installed below the first chip removal slope and the second chip removal slope.

5. The bidirectional chip removal machine tool base according to claim 4, characterized in that: A weight sensor is arranged below the chip conveyor to detect the weight of waste chips inside the chip conveyor.

6. The bidirectional chip removal machine tool base according to claim 5, characterized in that: A vibration detector is arranged inside the machine tool base to detect the vibration data of the machine tool base.

7. The bidirectional chip removal machine tool base according to claim 6, characterized in that: The machine tool base is provided with a Y-direction lead screw, and the Y-direction lead screw is arranged on the inner side of the Y-direction first guide rail and / or the Y-direction second guide rail.

8. The bidirectional chip removal machine tool base according to claim 7, characterized in that: The Y-axis lead screw is driven by a Y-axis drive motor, and the drive motor is arranged at the middle and rear part of the base, located at the concave position of the concave crossbeam installation surface.

9. The bidirectional chip removal machine tool base according to claim 8, characterized in that: The vibration detector is connected to the control mechanism of the chip conveyor, and the control mechanism controls the chip conveyor to discharge waste chips according to data from the vibration detector and data from the weight sensor.

10. The bidirectional chip removal machine tool base according to claim 9, characterized in that: The chip conveyor is tightly connected to the first chip removal inclined surface and the lower part of the second chip removal inclined surface through a fixing mechanism.

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