Combined machining head structure of numerical control machining center

Abstract

The utility model discloses a combined type machining machine head structure of a numerical control machining center, which relates to the technical field of numerical control machining centers and comprises a base, a base groove is arranged on the base, a placing base platform is arranged in the base groove, two Y-axis linear guide rails are symmetrically arranged on the base, and a Y-axis moving seat is respectively matched with the two Y-axis linear guide rails. The two Y-axis moving seats are jointly connected with a cross beam, and an X-axis linear guide rail is arranged on the cross beam; a first machine head part and a second machine head part are matched on the X-axis linear guide rail; two tool magazine parts matched with the first machine head part and the second machine head part respectively are also arranged on the cross beam and are respectively positioned on the outer sides of the first machine head part and the second machine head part. According to the utility model, the parallel processing and tool changing are realized, and when one machine head part is used for processing, the other machine head part can change the tool in advance, so that the processing pause caused by tool changing is avoided, the processing period is effectively shortened, the processing efficiency is greatly improved, and the popularization value is high.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining center technology, and more specifically, to a combined machining head structure for a CNC machining center. Background Technology

[0002] A CNC machining center is a highly automated machine tool. It integrates CNC technology, mechanical manufacturing technology, automation technology, and other technologies, possessing powerful machining capabilities. During machining, it can automatically change different types of tools through a tool magazine and automatic tool changer, continuously completing various complex processes such as milling, drilling, boring, and tapping without frequent manual intervention.

[0003] Currently, the processing efficiency of ordinary CNC machining centers is insufficient to meet the ever-increasing production demands. When machining complex workpieces, common CNC machining centers, with only one machining head, require sequential machining operations, and tool changes can cause machining pauses, significantly extending the machining cycle. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a combined machining head structure for CNC machining centers.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A combined machining head structure for a CNC machining center includes a base with a base groove and a placement platform within the groove. Two Y-axis linear guides are symmetrically arranged on the base, each with a Y-axis movable seat. A crossbeam is connected to both Y-axis movable seats, and an X-axis linear guide is mounted on the crossbeam. A first machine head and a second machine head are mounted on the X-axis linear guide. The crossbeam also has two tool magazines that respectively mate with the first and second machine heads, located outside the first and second machine heads.

[0007] Furthermore, when the first machine head performs a machining operation, the second machine head performs a tool changing operation near one of the tool magazine sections, or when the second machine head performs a machining operation, the first machine head performs a machining operation near the other tool magazine section.

[0008] Furthermore, the first machine head includes a first X-axis movable seat that is fitted on an X-axis linear guide rail, a first Z-axis linear guide rail that is fitted on the first X-axis movable seat, a first Z-axis movable seat that is fitted on the first Z-axis linear guide rail, and a first tool holder that is mounted on the first Z-axis movable seat.

[0009] Furthermore, the second machine head includes a second X-axis movable seat that is fitted onto the X-axis linear guide rail. The second X-axis movable seat is provided with a second Z-axis main linear guide rail. The second Z-axis main linear guide rail is fitted with a second Z-axis main movable seat. The second Z-axis main movable seat is provided with two second Z-axis secondary linear guide rails. Each of the two second Z-axis secondary linear guide rails is fitted with a second Z-axis secondary movable seat. Each of the two second Z-axis secondary movable seats is equipped with a second tool holder.

[0010] Furthermore, the two second tool holders sequentially perform tool changing actions.

[0011] Furthermore, the tool magazine includes a mounting beam connected to the crossbeam, a drive motor is mounted on the mounting beam, the drive motor is connected to a mounting frame, and multiple tool holders are arranged circumferentially on the mounting frame.

[0012] Furthermore, the tool magazine also includes a dust cover mounted on the mounting bracket. The dust cover covers the outside of the tool holder and has an opening that allows a set of tool holders to pass through.

[0013] Furthermore, the base trench is provided with a grid, which is located on both sides of the placement base to collect large debris.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, through the cooperative arrangement of the first and second machine heads with two tool magazines, allows for the installation of different tools to achieve diverse processing operations. It enables parallel processing and tool changing, and while processing is being carried out on one machine head, the other machine head can change tools in advance, avoiding processing interruptions caused by tool changing, effectively shortening the processing cycle, and significantly improving processing efficiency. It has high promotional value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0018] Figure 3 for Figure 1 A magnified view of part B in the diagram;

[0019] Figure 4 for Figure 1 A magnified view of part of C;

[0020] The components are as follows: 1. Base; 11. Base groove; 12. Grid; 2. Placement platform; 3. Y-axis linear guide; 31. Y-axis movable seat; 32. Crossbeam; 33. X-axis linear guide; 4. First machine head; 41. First X-axis movable seat; 42. First Z-axis linear guide; 43. First Z-axis movable seat; 44. First tool holder; 5. Second machine head; 51. Second X-axis movable seat; 52. Second Z-axis main linear guide; 53. Second Z-axis main movable seat; 54. Second Z-axis secondary linear guide; 55. Second Z-axis secondary movable seat; 56. Second tool holder; 6. Tool magazine; 61. Mounting beam; 62. Drive motor; 63. Mounting bracket; 64. Tool holder; 65. Dust cover; 651. Opening. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0022] See attached document Figure 1 -Appendix Figure 4 As shown, a combined machining head structure of a CNC machining center includes a base 1, a base groove 11 on the base 1, a grid 12 for collecting large chips and a placement platform 2 for fixing the workpiece in the base groove 11, two Y-axis linear guides 3 symmetrically arranged on the base 1, each Y-axis linear guide 3 having a Y-axis moving seat 31, and a crossbeam 32 connected to the two Y-axis moving seats 31, with an X-axis linear guide 33 on the crossbeam 32; a first machine head 4 and a second machine head 5 are fitted on the X-axis linear guide 33; the crossbeam 32 also has two tool magazines 6 that respectively cooperate with the first machine head 4 and the second machine head 5, the two tool magazines 6 being located outside the first machine head 4 and the second machine head 5, and when the first machine head 4 performs a machining operation, the second machine head 5 moves close to one of the tool magazines 6 to perform a tool changing operation, or when the second machine head 5 performs a machining operation, the first machine head 4 moves close to the other tool magazine 6 to perform a machining operation.

[0023] In the specific implementation of this utility model, the two symmetrically arranged Y-axis linear guides 3 on the base 1 are the key components for realizing movement in the Y-axis direction. Each Y-axis linear guide 3 is equipped with a Y-axis moving seat 31, and the two Y-axis moving seats 31 are connected to the crossbeam 32. Through a driving device (such as a servo motor and ball screw), the Y-axis moving seat 31 can move along the Y-axis linear guide 3 in the Y-axis direction, thereby driving the crossbeam 32 to make precise position adjustments in the Y-axis direction. This symmetrical structure of the double Y-axis linear guides 3 can improve the stability and load-bearing capacity of the crossbeam 32 movement, ensuring the smooth operation of the crossbeam 32 during processing; the X-axis linear guide is arranged on the crossbeam 32. 33 enables the first machine head 4 and the second machine head 5 to move in the X-axis direction. The first machine head 4 and the second machine head 5 can be equipped with different types of machining tools, such as milling cutters and drill bits, to realize different machining operations on the workpiece, such as milling and drilling. The two tool magazines 6 set on the crossbeam 32, which cooperate with the first machine head 4 and the second machine head 5 respectively, are important components for realizing rapid tool changing. They realize parallel operation of machining and tool changing, which greatly improves machining efficiency. While one machine head is machining, the other machine head can prepare the tools required for the next machining step in advance, avoiding the interruption of the entire machining process due to tool changing, thereby shortening the machining cycle.

[0024] Specifically, in the above plan, please refer to the appendix. Figure 2 As shown, the first machine head 4 includes a first X-axis movable seat 41 that is fitted on the X-axis linear guide rail 33. A first Z-axis linear guide rail 42 is fitted on the first X-axis movable seat 41. A first Z-axis movable seat 43 is fitted on the first Z-axis linear guide rail 42. A first tool holder 44 is mounted on the first Z-axis movable seat 43. In this design, the first tool holder 44 can move in the XYZ coordinate directions (for example, when milling or drilling is required at different transverse positions of the workpiece, the first machine head 4 can reach the corresponding position by moving the X-axis movable seat on the X-axis linear guide rail 33), thereby realizing tool changing and machining operations. The first tool holder 44 is existing technology, and its main function is to firmly fix the machining tool. Different types of machining tools, such as milling cutters and drill bits, can be mounted on the first machine head 4 through the first tool holder 44.

[0025] Specifically, in the above plan, please refer to the appendix. Figure 3As shown, the second machine head 5 includes a second X-axis movable seat 51 fitted on the X-axis linear guide 33. The second X-axis movable seat 51 is equipped with a second Z-axis main linear guide 52. A second Z-axis main movable seat 53 is fitted on the second Z-axis main linear guide 52. The second Z-axis main movable seat 53 is equipped with two second Z-axis secondary linear guides 54. Each of the two second Z-axis secondary linear guides 54 is fitted with a second Z-axis secondary movable seat 55. Each of the two second Z-axis secondary movable seats 55 is equipped with a second tool holder 56. The two second tool holders 56 sequentially perform tool changing actions. In this scheme, the various parts of the second machine head 5 cooperate to complete the machining task. The CNC system is based on… The pre-programmed machining program precisely controls the movement of the second X-axis moving seat 51 on the X-axis linear guide 33, the movement of the second Z-axis main moving seat 53 on the second Z-axis main linear guide 52, and the movement of the two second Z-axis auxiliary moving seats 55 on their respective second Z-axis auxiliary linear guides 54. At the same time, it also controls the tool changing action of the two second tool holders 56, so that the tools mounted on the second tool holders 56 can machine the workpiece according to the predetermined trajectory, depth and sequence. The second tool holders 56 are existing technology, and their main function is to firmly fix the machining tools. Different types of machining tools, such as milling cutters and drills, can be mounted on the second machine head 5 through the second tool holders 56.

[0026] Specifically, in the above plan, please refer to the appendix. Figure 4 The tool magazine unit 6 includes a mounting beam 61 connected to the crossbeam 32. A drive motor 62 is mounted on the mounting beam 61, and the drive motor 62 is connected to a mounting frame 63. Multiple tool holders 64 are arranged circumferentially on the mounting frame 63. In this design, when a tool needs to be changed during machining, the CNC system first determines which tool holder 64 the tool to be used is located on. Then, it controls the drive motor 62 to rotate, causing the mounting frame 63 to drive the tool holder 64 to rotate, moving the required tool to the tool changing position. At this time, the first machine head 4 or the second machine head 5 will move to the tool changing position, cooperating with the tool magazine unit 6 to complete the tool changing action. After the tool changing is completed, the drive motor 62 can continue to rotate, moving the tool that may be used next to a position that is convenient for tool changing, preparing for subsequent machining operations.

[0027] To prevent dust from falling into the tool magazine section 6 and causing tool changing failure, please refer to the attached document. Figure 4As shown, the tool magazine unit 6 also includes a dust cover 65 mounted on the mounting frame 63. The dust cover 65 covers the outside of the tool holder 64 and has an opening 651 that allows a set of tool holders to pass through. In this design, the dust cover 65 is mounted on the mounting frame 63 and covers the outside of the tool holder 64, forming a relatively enclosed space that isolates the tool holder 64 from the external environment. This effectively prevents dust, debris, and other impurities generated during the machining process from entering the tool magazine unit 6, avoiding these impurities from affecting the normal operation of the tool holder 64 and preventing tool changing failures caused by dust and other foreign objects. The dust cover 65 has an opening 651 that allows a set of tool holders 64 to pass through. When the mounting frame 63 rotates under the drive of the drive motor 62, the tool holder 64 can be exposed from the opening 651 to change tools with the machine head. After the tool change is completed, it can return to the inside of the dust cover 65, always in a protected state.

[0028] The foregoing has shown and described the basic principles and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined machining head structure of a numerical control machining center, comprising a base (1) provided with a base groove (11), a base platform (2) arranged in the base groove (11), two Y-axis linear guides (3) symmetrically arranged on the base (1), one Y-axis moving seat (31) matched with each Y-axis linear guide (3), a cross beam (32) commonly connected to the two Y-axis moving seats (31), and an X-axis linear guide (33) arranged on the cross beam (32); characterized in that: a first head part (4) and a second head part (5) are matched with the X-axis linear guide (33); two tool magazine parts (6) matched with the first head part (4) and the second head part (5) are further arranged on the cross beam (32), and the two tool magazine parts (6) are respectively located at the outer sides of the first head part (4) and the second head part (5).

2. The combined machining head structure of the numerical control machining center according to claim 1, characterized in that: when the first head part (4) performs a machining action, the second head part (5) is close to one of the tool magazine parts (6) to perform a tool changing action, or when the second head part (5) performs a machining action, the first head part (4) is close to the other tool magazine part (6) to perform a machining action.

3. The combined machining head structure of the numerical control machining center according to claim 2, characterized in that: the first head part (4) comprises a first X-axis moving seat (41) matched with the X-axis linear guide (33), a first Z-axis linear guide (42) matched with the first X-axis moving seat (41), a first Z-axis moving seat (43) matched with the first Z-axis linear guide (42), and a first tool holder (44) mounted on the first Z-axis moving seat (43).

4. The combined machining head structure of the numerical control machining center according to claim 3, characterized in that: the second head part (5) comprises a second X-axis moving seat (51) matched with the X-axis linear guide (33), a second Z-axis main linear guide (52) arranged on the second X-axis moving seat (51), a second Z-axis main moving seat (53) matched with the second Z-axis main linear guide (52), two second Z-axis auxiliary linear guides (54) arranged on the second Z-axis main moving seat (53), a second Z-axis auxiliary moving seat (55) matched with each second Z-axis auxiliary linear guide (54), and a second tool holder (56) mounted on each second Z-axis auxiliary moving seat (55).

5. The combined machining head structure of the numerical control machining center according to claim 4, characterized in that: the two second tool holders (56) sequentially perform a tool changing action.

6. The combined machining head structure of the numerical control machining center according to claim 5, characterized in that: the tool magazine part (6) comprises a mounting beam (61) connected to the cross beam (32), a driving motor (62) arranged on the mounting beam (61), a mounting frame (63) connected to the driving motor (62), and a plurality of tool holders (64) circumferentially arranged on the mounting frame (63).

7. The combined machining head structure of a CNC machining center according to claim 6, characterized in that: The tool magazine (6) further comprises a dust cover (65) arranged on the mounting frame (63), the dust cover (65) covers the outside of the tool holder (64) and an opening (651) allowing a group of tool holders to pass through is arranged on the dust cover (65).

8. The combined machining head structure of a CNC machining center according to claim 7, characterized in that: The base groove (11) is provided with a grid (12), and the grid (12) is located on both sides of the placement base (2).

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