Automatic milling head replacing head library of gantry machining center

Abstract

The utility model relates to a gantry machining center automatic milling head changing head library, which is characterized by comprising a machine tool body, a head library and a dustproof cover, a mounting plate is fixedly arranged on one side of the machine tool body, a sliding rail is fixedly arranged on the mounting plate, proximity switches are arranged at two ends of the sliding rail, and the dustproof cover is arranged on the head library. The head library and the dustproof cover are installed on the sliding rails through sliding blocks, the head library is arranged below the dustproof cover, the back of the head library is connected with a first oil cylinder driving the head library to move, and the back of the dustproof cover is connected with a second oil cylinder driving the dustproof cover to move. According to the utility model, the head library is pushed to a head changing position through the oil cylinder, and accurate positioning is carried out through the proximity switch; meanwhile, the dustproof cover is pushed to the head replacement position through the other oil cylinder and the proximity switch, when head replacement is not needed, the spindle clamps the dustproof cover to prevent dust or sweeps from polluting the contact face of the spindle and the head library, and therefore the dust or the sweeps are prevented from affecting the head replacement precision.

Description

Technical Field

[0001] The utility model relates to an automatic milling head change magazine for a gantry machining center, belonging to the technical field of milling head change magazines. Background Art

[0002] CNC gantry machine tools are milling machines with a portal frame and a horizontal long bed. Multiple milling cutters can be used to process surfaces simultaneously on CNC gantry machine tools. The processing accuracy and production efficiency are relatively high. They are suitable for processing flat and inclined surfaces of large workpieces in batch and mass production. CNC gantry machine tools are of three types: movable table type, movable gantry type, and movable crossbeam type. The movable table gantry machine tool makes the installation of workpieces more convenient.

[0003] The existing automatic head changing head warehouse needs to be fixed on the machine tool. Due to the limitation of machine tool space, it can only realize the automatic head changing action. The number of head warehouses is fixed and it is impossible to increase the head warehouse according to actual production needs. Moreover, since multiple head changing actions at multiple stations need to rely on manual operation, not only the positioning accuracy of head changing is low, but also it is time-consuming and labor-intensive, which directly affects the efficiency of head changing.

[0004] Therefore, how to provide a gantry machining center automatic milling head change head library with high positioning accuracy is the research purpose of the utility model. Utility Model Content

[0005] In view of the deficiencies of the above-mentioned technology, the utility model provides a head magazine for automatic milling head changing of a gantry machining center, which pushes the head magazine to the head changing position by an oil cylinder and performs precise positioning by a proximity switch; at the same time, the dust cover is pushed to the head changing position by another set of oil cylinders and proximity switches. When the head does not need to be changed, the spindle clamps the dust cover to prevent dust or waste chips from contaminating the contact surface between the spindle and the head magazine, thereby preventing dust or waste chips from affecting the head changing accuracy.

[0006] In order to solve the existing technical problems, the technical solution adopted by the utility model is:

[0007] A head magazine for automatically changing milling heads in a gantry machining center, characterized in that it includes a machine tool body, a head magazine and a dust cover, a mounting plate is fixedly provided on one side of the machine tool body, a slide rail is fixedly provided on the mounting plate, proximity switches are provided at both ends of the slide rail, the head magazine and the dust cover are mounted on the slide rail through a slider, the head magazine is arranged below the dust cover, the back of the head magazine is connected to a first oil cylinder for driving its movement, and the back of the dust cover is connected to a second oil cylinder for driving its movement.

[0008] Furthermore, the proximity switches are arranged in two groups, one group is arranged on both sides of the head warehouse, and the other group is arranged on both sides of the dust cover.

[0009] Furthermore, positioning pins are provided at the four top corners of the head storage and the dust cover.

[0010] Furthermore, the machine tool body and the mounting plate are arranged perpendicular to each other.

[0011] The beneficial effects of the utility model are as follows: 1. The head library is pushed to the head changing position by the oil cylinder and accurately positioned by the proximity switch, which can not only improve the head changing efficiency but also ensure the head changing accuracy; 2. At the same time, the dust cover is pushed to the head changing position by another set of oil cylinders and proximity switches. When the head does not need to be changed, the spindle clamps the dust cover to prevent dust or waste chips from contaminating the contact surface between the spindle and the head library, thereby preventing dust or waste chips from affecting the head changing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is one of the local structural diagrams of the utility model.

[0014] Figure 3 This is the second partial structural diagram of the utility model.

[0015] Among them: machine tool body 1, head library 2, dust cover 3, mounting plate 4, slide rail 5, proximity switch 6, first oil cylinder 7, second oil cylinder 8, positioning pin 9. DETAILED DESCRIPTION

[0016] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-3 The utility model is further analyzed.

[0017] like Figure 1-3 As shown, a head warehouse for automatic milling head change in a gantry machining center is characterized in that it includes a machine tool body 1, a head warehouse 2 and a dust cover 3, a mounting plate 4 is fixedly provided on one side of the machine tool body 1, a slide rail 5 is fixedly provided on the mounting plate 4, proximity switches 6 are provided at both ends of the slide rail 5, the head warehouse 2 and the dust cover 3 are installed on the slide rail 5 through a slider, the head warehouse 2 is arranged below the dust cover 3, the back of the head warehouse 2 is connected to a first oil cylinder 7 for driving it to move, and the back of the dust cover 3 is connected to a second oil cylinder 8 for driving it to move.

[0018] In this embodiment, preferably, the proximity switches 6 are provided in two groups, one group is provided on both sides of the head storage 2 , and the other group is provided on both sides of the dust cover 3 .

[0019] In this embodiment, preferably, positioning pins 9 are provided at the four top corners of the head storage 2 and the dust cover 3 .

[0020] In this embodiment, preferably, the machine tool body 1 and the mounting plate 4 are arranged perpendicular to each other.

[0021] The specific working principle of the utility model is as follows: when it is necessary to change the head, the first oil cylinder 7 pushes the head library 2 to move to the head changing position, and is accurately positioned by the proximity switch 6, and then the machine tool spindle moves over to clamp the head library 2; when it is not necessary to change the head, the second oil cylinder 8 pushes the dust cover 3 to move to the head changing position, and is accurately positioned by the proximity switch 6, and then the machine tool spindle moves over to clamp the dust cover 3 to prevent dust or waste chips from contaminating the contact surface between the spindle and the head library.

[0022] The technical solution provided by the present application is introduced in detail above. The principles and implementation methods of the present application are explained in this article using embodiments. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A gantry machining center automatic milling head change head magazine, characterized by: It includes a machine tool body, a head warehouse and a dust cover. A mounting plate is fixedly provided on one side of the machine tool body, a slide rail is fixedly provided on the mounting plate, proximity switches are provided at both ends of the slide rail, the head warehouse and the dust cover are installed on the slide rail through sliders, the head warehouse is arranged below the dust cover, the back of the head warehouse is connected to a first oil cylinder for driving it to move, and the back of the dust cover is connected to a second oil cylinder for driving it to move.

2. The automatic milling head changer for a gantry machining center according to claim 1, characterized in that: The proximity switches are arranged in two groups, one group is arranged on both sides of the head storehouse, and the other group is arranged on both sides of the dust cover.

3. The automatic milling head changer for a gantry machining center according to claim 1, characterized in that: The top four corners of the head storage and the dust cover are all provided with positioning pins.

4. The automatic milling head changer for a gantry machining center according to claim 1, characterized in that: The machine tool body and the mounting plate are arranged perpendicular to each other.

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