X-axis double-nut mechanism of multi-head engraving and milling machine

Abstract

The utility model relates to an x-axis double-nut mechanism of a multi-head engraving and milling machine. The x-axis double-nut mechanism comprises a cross beam, the guide rail is fixedly mounted on the cross beam; the mounting plate assembly is slidably connected with the guide rail and used for mounting the spindle; the screw rod is rotationally arranged on the cross beam; the driving device is used for driving the screw rod to rotate; the mounting plate assembly comprises a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are both fixedly provided with screw rod nuts in threaded connection with the screw rod, and the two screw rod nuts corresponding to the first mounting plate and the second mounting plate are in threaded connection with the screw rod, so that the load is distributed to the two screw rod nuts; load borne by a single lead screw nut is greatly reduced, abrasion of the lead screw and the lead screw nut is reduced, the service life is effectively prolonged, and precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving and milling machines, in particular to an X-axis double-nut mechanism of a multi-head engraving and milling machine. Background Art

[0002] A milling machine is a type of CNC machine tool. It utilizes small tools and a high-power, high-speed spindle motor. Capable of both engraving and milling, it is a highly efficient and precise CNC machine tool. Its applications are broad, including single-stage roughing and finishing of precision mold cores, mold copper electrodes, batch processing of aluminum parts, shoe mold manufacturing, fixture processing, and the watch and clock industry. Due to their high cost-effectiveness, fast processing speed, and excellent finish, milling machines are gaining increasing importance in the machine tool industry.

[0003] In order to improve processing efficiency, current engraving and milling machines are often installed with multiple spindles, which results in a heavy load on the x-axis of the engraving and milling machine. The conventional structure is a single lead screw nut. When all the loads are borne by a single nut, the lead screw nut will be damaged or worn too much, resulting in an out-of-tolerance precision gap. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an X-axis double-nut mechanism for a multi-head engraving and milling machine.

[0005] The purpose of the utility model can be achieved through the following technical solution: an x-axis double-nut mechanism of a multi-head engraving and milling machine, comprising a crossbeam; a guide rail fixedly mounted on the crossbeam; a mounting plate assembly slidably connected to the guide rail and used for mounting a spindle; a screw rod rotatably set on the crossbeam; a driving device for driving the screw rod to rotate; the mounting plate assembly comprises a first mounting plate and a second mounting plate, and both the first mounting plate and the second mounting plate are fixedly provided with screw nuts threadedly connected to the screw rod.

[0006] Preferably, a pressure block is provided on one side of the guide rail on the crossbeam.

[0007] Preferably, an anti-collision support is provided on one side of the screw nut on the crossbeam, and an anti-collision rubber pad is installed on the anti-collision support.

[0008] Preferably, the driving device is a servo motor.

[0009] The beneficial effect of the utility model is that the utility model distributes the load to the two screw nuts by threading the two screw nuts corresponding to the first mounting plate and the second mounting plate respectively on the screw, which greatly reduces the load borne by the single screw nut, reduces the wear of the screw and the screw nut, and effectively improves the service life and precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0011] Figure 1 The utility model shows the structural intention of the X-axis double-nut mechanism of a multi-head engraving and milling machine.

[0012] Figure 2 The utility model shows a screw rod structure intention of the X-axis double-nut mechanism of a multi-head engraving and milling machine.

[0013] Figure 3 The utility model shows a guide rail structure intention of the X-axis double-nut mechanism of a multi-head engraving and milling machine.

[0014] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0015] The numbers shown in the figure represent: 1. crossbeam; 2. guide rail; 3. mounting plate assembly; 301. first mounting plate; 302. second mounting plate; 4. screw; 5. drive device; 6. screw nut; 7. pressure block; 8. anti-collision support; 9. anti-collision rubber pad; 10. main shaft. DETAILED DESCRIPTION

[0016] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0018] The following will be combined with specific embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] See Figures 1 to 4 As shown, the structure of the utility model is as follows: an x-axis double-nut mechanism of a multi-head engraving and milling machine, comprising a crossbeam 1; a guide rail 2, fixedly mounted on the crossbeam 1; a mounting plate assembly 3, slidably connected to the guide rail 2, for mounting a spindle 10; a screw rod 4, rotatably arranged on the crossbeam 1; a driving device 5, for driving the screw rod 4 to rotate; the mounting plate assembly 3 comprises a first mounting plate 301 and a second mounting plate 302, both of which are fixedly provided with a screw nut 6 threadedly connected to the screw rod 4. Specifically, the first mounting plate 301 and the second mounting plate 302 are Multiple spindles 10 are installed on the mounting plate 301 and the second mounting plate 302. The driving device 5 is a servo motor. The servo motor drives the screw rod 4 to rotate. The screw rod 4 is threadedly connected to the screw nut 6 on the first mounting plate 301 and the second mounting plate 302, driving the first mounting plate 301 and the second mounting plate 302 to slide along the guide rail 2, and distributing the load to the two screw nuts 6, which greatly reduces the load borne by a single screw nut 6, reduces the wear of the screw rod 4 and the screw nut 6, and effectively improves the service life and precision.

[0020] like Figure 4 As shown, a pressure block 7 is provided on one side of the guide rail 2 on the crossbeam 1. Specifically, the pressure block 7 is used to reduce the influence of slight bending that may occur in the guide rail 2 during movement.

[0021] like Figure 2 、 Figure 3 As shown, an anti-collision support 8 is provided on one side of the screw nut 6 on the crossbeam 1, and an anti-collision rubber pad 9 is installed on the anti-collision support 8. Specifically, the anti-collision rubber pad 9 plays a buffering role to prevent collisions from affecting the accuracy of the screw 4 and the screw nut 6.

[0022] During specific use, the servo motor drives the screw rod 4 to rotate, and the screw rod 4 is threadedly connected to the screw nut 6 on the first mounting plate 301 and the second mounting plate 302, driving the first mounting plate 301 and the second mounting plate 302 to slide along the guide rail 2, and distributing the load to the two screw nuts 6, which greatly reduces the load borne by a single screw nut 6, reduces the wear of the screw rod 4 and the screw nut 6, and effectively improves the service life and precision.

[0023] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An x-axis double-nut mechanism for a multi-head engraving and milling machine, characterized by: including a crossbeam (1); A guide rail (2) is fixedly mounted on the crossbeam (1); A mounting plate assembly (3) slidably connected to the guide rail (2) and used for mounting the spindle (10); A screw rod (4) rotatably mounted on the crossbeam (1); A driving device (5) for driving the screw rod (4) to rotate; The mounting plate assembly (3) comprises a first mounting plate (301) and a second mounting plate (302), and a screw nut (6) threadedly connected to the screw (4) is fixedly provided on the first mounting plate (301) and the second mounting plate (302).

2. The x-axis double-nut mechanism of a multi-head engraving and milling machine according to claim 1, characterized in that: A pressing block (7) is provided on the crossbeam (1) on one side of the guide rail (2).

3. The x-axis double-nut mechanism of a multi-head engraving and milling machine according to claim 1, characterized in that: An anti-collision support (8) is provided on the crossbeam (1) at one side of the screw nut (6), and an anti-collision rubber pad (9) is installed on the anti-collision support (8).

4. The x-axis double-nut mechanism of a multi-head engraving and milling machine according to claim 1, characterized in that: The driving device (5) is a servo motor.

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