Numerical control machining center with high machining precision

Abstract

The utility model discloses a numerical control machining center with high machining precision, which comprises a machine base, an integrated casting machine frame positioned on one side of the machine base and a machine head movably arranged on one side of the integrated casting machine frame, and a machine table mechanism capable of moving along a plane is arranged on the machine base. A receding groove extending in the vertical direction and a vertical guide rail extending in the vertical direction are arranged on the side, facing the machine head, of the integrated casting machine frame, the machine head is in sliding fit with the vertical guide rail, and a machine head driving mechanism used for driving the machine head to move is arranged in the receding groove. According to the machining center, the machine head used for machining the workpiece is installed through the integrated casting machine frame, the integrated casting machine frame is integrally cast, the installation and machining errors are reduced through the integrated design, the machining center is not prone to shaking in the working process, vibration is effectively resisted, the stability of the machine head in the workpiece machining process is effectively improved, and the machining accuracy of the machining center is improved. Therefore, the machining precision of the machine head is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining center technical field especially relates to a numerical control machining center of high machining accuracy. BACKGROUND

[0002] The machine head for machining workpiece of prior art large machining center is generally heavy, and the machine frame for installing the machine head is mostly made of split parts by welding or bolt fixing, and has weak anti-vibration capacity, because the machine head is heavy and will produce large vibration during machining workpiece, the machine frame with weak anti-vibration capacity will vibrate simultaneously, affecting the machining stability of the machine head, thus error will be produced to the machining of workpiece, and product precision cannot be guaranteed. SUMMARY

[0003] In order to improve the machining precision of products, the utility model provides a numerical control machining center of high machining accuracy.

[0004] The utility model discloses a following scheme realizes:

[0005] A numerical control machining center of high machining accuracy, including the base, the integral type casting frame of one side of the base and the machine head movably arranged on the one side of the integral type casting frame, the base is equipped with the machine table mechanism that can move along the plane, the one side of the integral type casting frame towards the machine head is equipped with the vertical extension's give room slot and the vertical extension's vertical guide rail, the machine head and the vertical guide rail slide fit, the give room slot is equipped with the machine head drive mechanism for driving the machine head moves.

[0006] The numerical control machining center of high machining accuracy as above, the integral type casting frame is equipped with two vertical guide rails, and the give room slot is located between the two vertical guide rails.

[0007] The numerical control machining center of high machining accuracy as above, the machine head drive mechanism includes the transmission screw rod of vertical extension and the machine head drive motor of driving the transmission screw rod rotates, and the machine head is equipped with the transmission seat that is screwed with the transmission screw rod.

[0008] The numerical control machining center of high machining accuracy as above, the give room slot is equipped with the upper limit block and the lower limit block of limit cooperation with the transmission seat, the upper limit block is equipped with the upper bearing seat for installing the transmission screw rod, and the lower limit block is equipped with the bearing seat for installing the transmission screw rod.

[0009] The numerical control machining center of high machining accuracy as above, the integral type casting frame is equipped with a plurality of hollows.

[0010] As described above, a high-precision CNC machining center includes a machine tool mechanism comprising a Y-axis drive device for driving the machine tool to move along a plane Y-axis and an X-axis drive device for driving the Y-axis drive device to move along a plane X-axis. The Y-axis drive device extends toward the integrated casting frame, and the X-axis drive device is parallel to the integrated casting frame.

[0011] As described above, in a high-precision CNC machining center, the Y-axis drive device includes a Y-axis slide rail, and the worktable is mounted on the Y-axis slide rail. The X-axis drive device includes an X-axis slide rail, and the Y-axis slide rail is mounted on the X-axis slide rail, with the length of the X-axis slide rail being longer than the length of the Y-axis slide rail.

[0012] As described above, a high-precision CNC machining center has a waste material conveying mechanism located below the machine tool mechanism on the machine base.

[0013] As described above, in a high-precision CNC machining center, the waste material conveying mechanism includes a feeding auger and a waste material conveying motor for driving the feeding auger to rotate, wherein the feeding auger is parallel to the X-axis slide rail.

[0014] As described above, in a high-precision CNC machining center, the waste material conveying mechanism is provided on both sides of the X-axis slide rail.

[0015] Compared with the prior art, this application has the following advantages:

[0016] In this utility model, the machining head for processing workpieces is installed using an integrated casting frame. The integrated casting frame is cast in one piece, and the overall design reduces installation and processing errors. It also makes the machining center less prone to vibration during operation, effectively resisting vibration and improving the stability of the machining head when processing workpieces, thereby benefiting the machining accuracy of the machining head. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a structural schematic diagram of a high-precision CNC machining center according to this application.

[0019] Figure 2 This is a schematic diagram of the integrated casting frame mounting head drive mechanism of a high-precision CNC machining center according to this application.

[0020] Figure 3 yes Figure 1 A cross-sectional view along AA. Detailed Implementation

[0021] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0022] When the present application refers to "first", "second" and the like ordinal numbers, unless it expresses the order according to the context, it should be understood as merely used for distinction.

[0023] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Embodiment: The present embodiment includes a numerical control machining center with high machining precision as shown in Figures 1 to 3 The present application discloses a numerical control machining center with high machining precision, which comprises a base 1, an integral casting frame 2 located on one side of the base 1 and a machine head 3 movably arranged on one side of the integral casting frame 2. The base 1 is provided with a machine table mechanism 4 capable of moving along a plane. The integral casting frame 2 is provided with a vertical extension accommodating groove 21 and a vertical guide rail 5 on the side facing the machine head 3. The machine head 3 is in sliding fit with the vertical guide rail 5, and the accommodating groove 21 is provided with a machine head driving mechanism 6 for driving the movement of the machine head 3. In the present embodiment, the machine head 3 for machining workpieces is mounted on the integral casting frame 2. The integral casting frame 2 is integrally cast, and the overall design reduces the installation and machining errors, and makes the machining center less likely to vibrate during work, effectively resisting tremor and improving the stability of the machine head 3 during machining of workpieces, thereby facilitating the machining precision of the machine head 3.

[0025] Further, the integral casting frame 2 is provided with two vertical guide rails 5, and the accommodating groove 21 is located between the two vertical guide rails 5. The design of providing two vertical guide rails 5 on the integral casting frame 2 and locating the accommodating groove 21 therebetween can effectively enhance the rigidity of the integral casting frame 2, improve the movement precision and stability of the machine head 3 on the integral casting frame 2, and optimize the position space layout of the component structures on the integral casting frame 2, so as to ensure that the overall center of gravity of the integral casting frame 2 and the machine head 3 is as close as possible to the middle position between the machine head 3 and the integral casting frame 2, thereby ensuring the positional stability of the machine head 3 and further facilitating the machining precision of the machine head 3 on workpieces.

[0026] Further, the head driving mechanism 6 comprises a vertically extending transmission screw rod 61 and a head driving motor 62 driving the transmission screw rod 61 to rotate, and the head 3 is provided with a transmission seat 63 threadedly matched with the transmission screw rod 61. The thread matching of the transmission screw rod 61 and the transmission seat 63 can realize high-precision transmission and ensure the accurate movement of the head 3 in the vertical direction. Since the stability of the screw rod transmission is good, the head 3 will not produce obvious vibration or shaking during movement, which is beneficial to maintaining the stability of processing.

[0027] Further, the let-out groove 21 is provided with an upper limiting block 22 and a lower limiting block 23 limiting matched with the transmission seat 63, the upper limiting block 22 is provided with an upper bearing seat 64 for installing the transmission screw rod 61, and the lower limiting block 23 is provided with a bearing seat 64 for installing the transmission screw rod 61. The design of the let-out groove 21 provided with the upper limiting block 22 and the lower limiting block 23 and the corresponding bearing seat 64 has the advantages of limiting protection, improving stability, enhancing bearing capacity and optimizing transmission efficiency in the numerical control machining center with high machining precision. These advantages collectively improve the overall performance of the machining center, so that it can better meet the needs of high-precision machining.

[0028] Further, the one-piece cast frame 2 is provided with a plurality of hollow openings 24. The design of the hollow openings 24 can significantly reduce the weight of the one-piece cast frame 2, thereby reducing the overall mass of the machine tool. Reducing the weight helps to reduce the vibration and inertial force generated by the machining center during machining, improving the stability of machining. At the same time, through reasonable hollow layout, the rigidity and stability of the one-piece cast frame 2 can be enhanced, so that it can better resist external stress and deformation.

[0029] Further, the machine table mechanism 4 comprises a working machine table 41, a Y-direction driving device 42 driving the working machine table 41 to move along the plane Y, and an X-direction driving device 43 driving the Y-direction driving device 42 to move along the plane X, the Y-direction driving device 42 extends towards the one-piece cast frame 2, the X-direction driving device 43 is parallel to the one-piece cast frame 2, the Y-direction driving device 42 comprises a Y-direction sliding rail 421, the working machine table 41 is arranged on the Y-direction sliding rail 421, the X-direction driving device 43 comprises an X-direction sliding rail 431, the Y-direction sliding rail 421 is arranged on the X-direction sliding rail 431, and the length of the X-direction sliding rail 431 is longer than the length of the Y-direction sliding rail 421. The longer X-direction sliding rail 431 is located below the shorter Y-direction sliding rail 421, which can effectively ensure the stability of the center of gravity of the working machine table 41, ensure that the working machine table 41 will not tilt due to movement, ensure that the workpiece on the working machine table 41 is stably placed, and further ensure the machining precision of the product.

[0030] Further, the base 1 is provided with a waste conveying mechanism 7 below the machine table mechanism 4, the waste conveying mechanism 7 comprises a feeding auger 71 and a waste conveying motor 72 for driving the feeding auger 71 to rotate, and the feeding auger 71 is parallel to the X-direction slide rail 431. The waste conveying mechanism 7 is provided on both sides of the X-direction slide rail 431. The waste conveying mechanism 7 can automatically collect and convey the waste generated in the processing process without manual intervention, and can timely remove the waste from the working area, avoiding the influence of the waste accumulation on the working area.

[0031] The working principle of the embodiment is as follows:

[0032] In the embodiment, the head 3 for processing workpieces is installed through the integral casting frame 2, the integral casting frame 2 is integrally cast, the integral design reduces the installation and processing errors, and also makes the machining center not easy to shake during work, effectively resisting vibration, effectively improving the stability of the head 3 during processing workpieces, thereby being beneficial to the machining precision of the head 3.

[0033] The above is an embodiment provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any approximation, similarity, or replacement of the method and structure of the present application, or any technical deduction or replacement made on the basis of the concept of the present application, should be regarded as the protection scope of the present application.

Claims

1. A numerically controlled machining center with high machining accuracy, characterized by comprising: The utility model provides a kind of integrated casting machine, including base (1), integral casting frame (2) on one side of the base (1) and movable head (3) on one side of the integral casting frame (2), the base (1) is equipped with machine table mechanism (4) that can move along plane, the integral casting frame (2) is equipped with along the vertical extension of the side of the head (3) and the vertical guide rail (5) along the vertical extension of the side of the head (3), the head (3) and the vertical guide rail (5) sliding fit, the head drive mechanism (6) for driving the head (3) to move is equipped in the let slot (21).

2. The numerically controlled machining center with high machining precision according to claim 1, characterized in that, The integral casting frame (2) is equipped with two vertical guide rails (5), and the let slot (21) is located between the two vertical guide rails (5).

3. The numerically controlled machining center with high machining precision according to claim 1, characterized in that, The head drive mechanism (6) includes a transmission screw rod (61) extending vertically and a head drive motor (62) driving the transmission screw rod (61) to rotate, and the head (3) is provided with a transmission seat (63) threadedly connected with the transmission screw rod (61).

4. The numerically controlled machining center with high machining precision according to claim 3, characterized in that, The let slot (21) is provided with an upper limit block (22) and a lower limit block (23) limiting the transmission seat (63), the head drive motor (62) is arranged on the upper limit block (22), and the lower limit block (23) is provided with a bearing seat (64) for mounting the transmission screw rod (61).

5. The numerically controlled machining center with high machining precision according to claim 1, characterized in that, The integral casting frame (2) is provided with a plurality of hollow openings (24).

6. The numerically controlled machining center with high machining precision according to claim 1, characterized in that, The machine table mechanism (4) includes a working machine table (41), a Y-direction driving device (42) for driving the working machine table (41) to move along the Y-direction, and an X-direction driving device (43) for driving the Y-direction driving device (42) to move along the X-direction, the Y-direction driving device (42) extends towards the integral casting frame (2), and the X-direction driving device (43) is parallel to the integral casting frame (2).

7. The numerically controlled machining center with high machining precision according to claim 6, characterized in that, The Y-direction driving device (42) includes a Y-direction sliding rail (421), and the working machine table (41) is arranged on the Y-direction sliding rail (421); the X-direction driving device (43) includes an X-direction sliding rail (431), and the Y-direction sliding rail (421) is arranged on the X-direction sliding rail (431); and the length of the X-direction sliding rail (431) is longer than the length of the Y-direction sliding rail (421).

8. The numerically controlled machining center with high machining precision according to claim 7, characterized in that, The base (1) is provided with a waste conveying mechanism (7) below the machine table mechanism (4).

9. The numerically controlled machining center with high machining precision according to claim 8, characterized in that, The waste conveying mechanism (7) includes a feeding auger (71) and a waste conveying motor (72) for driving the feeding auger (71) to rotate, and the feeding auger (71) is parallel to the X-direction sliding rail (431).

10. The numerically controlled machining center with high machining precision according to claim 9, characterized in that, The X-direction sliding rail (431) is provided with the waste conveying mechanism (7) on both sides.

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