Gantry machining center ram with vertical and horizontal double spindles

Abstract

The utility model discloses a gantry machining center ram with vertical and horizontal double spindles, which comprises a ram main body, a vertical mechanism and a horizontal mechanism, the vertical mechanism is arranged in a vertical spindle box, the vertical mechanism comprises a mounting rack, a vertical spindle and a vertical transmission motor, the horizontal mechanism is arranged in a horizontal spindle box, and the vertical transmission motor is connected with the mounting rack. The horizontal mechanism comprises a horizontal main shaft and a horizontal transmission motor; the horizontal spindle box and the vertical spindle box are arranged on the ram seat, and the horizontal mechanism and the vertical mechanism are respectively arranged in the horizontal spindle box and the vertical spindle box, so that the overall structure is compact, and the manufacturing cost is low; moreover, vertical machining and horizontal machining can be achieved on the same ram, the vertical main shaft and the horizontal main shaft can be replaced without moving the ram, operation is easier and more convenient, machining precision is high, the production and machining efficiency is effectively improved, and the machining interference area and the tool replacement time are reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a ram for a gantry machining center with both vertical and horizontal spindles. Background Technology

[0002] Currently, machining centers evolved from CNC milling machines. The biggest difference between them and CNC milling machines is that machining centers have the ability to automatically change machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed in a single setup via an automatic tool changer, thus achieving multiple machining functions.

[0003] The ram is one of the core structures of a machining center and is the direct actuator for machining workpieces. Existing machining centers generally have two rams, each equipped with a vertical spindle and a horizontal spindle, enabling vertical and horizontal machining of workpieces. However, two rams not only require a large space and have high manufacturing costs, but also require moving both rams to change the vertical and horizontal spindles when performing vertical and horizontal machining on the same workpiece. This operation method is cumbersome, has low machining accuracy, and low production efficiency. Summary of the Invention

[0004] To solve the above problems, this utility model provides a gantry machining center slide with vertical and horizontal dual spindles, which occupies little space, is easy to operate, has high machining accuracy, and can simultaneously meet the machining needs of the vertical and horizontal surfaces of workpieces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gantry machining center ram with vertical and horizontal dual spindles, comprising a ram body, a vertical mechanism, and a horizontal mechanism. The lower part of the front end face of the ram body is an open structure. The lower part of the ram body is divided into two cavity structures by a vertically arranged partition plate. The cavity on the right is a vertical spindle box, and the cavity on the left is a horizontal spindle box. The internal height of the horizontal spindle box is greater than that of the vertical spindle box, and the top surfaces of both are at the same level. The bottom surface of the horizontal spindle box extends downward to form a protrusion. A mounting hole is provided at the midpoint of the front end face of the protrusion, and the rear end face is an open structure. The side plates and interior of the vertical and horizontal spindle boxes are provided with several threaded connection holes. A connecting frame is provided on the top surface of the ram body. Balance telescopic sleeves are installed on the bottom surfaces of both sides of the connecting frame. Slide rails are provided on both sides of the ram body.

[0006] The vertical mechanism is housed inside the vertical spindle box. The vertical mechanism includes a mounting frame, a vertical spindle, and a vertical drive motor. The mounting frame is a hollow square frame with an open bottom surface. A through hole is provided at the midpoint of the top surface of the mounting frame, and a square hole is provided on the front end surface. Connecting plates are provided on the left and right end faces of the square hole. Screw holes are provided on the connecting plates, and bolts are installed in the screw holes. The mounting frame is detachably mounted on the left and right side plates of the vertical spindle box through the bolt structure on the connecting plates, and is located in the lower middle part of the inner vertical spindle box.

[0007] The vertical spindle is vertically installed inside the vertical spindle box and connected to the mounting bracket. The vertical cutter head at its bottom protrudes beyond the bottom surface of the vertical spindle box. The vertical drive motor is installed above the mounting bracket, and its mounting base is connected to the top surface of the mounting bracket. The drive end of the vertical drive motor passes through the square hole on the top surface of the mounting bracket and is directly connected to the vertical spindle.

[0008] The horizontal mechanism is housed within a horizontal spindle box. The horizontal mechanism includes a horizontal spindle and a horizontal drive motor. The horizontal spindle is a belt-driven spindle, which is horizontally mounted within the lower protrusion of the horizontal spindle box. Its horizontal cutter head passes through the mounting hole on the front end face of the protrusion. The horizontal drive motor is located above the horizontal spindle and connected to the horizontal spindle box. The output end of the horizontal drive motor is connected to the horizontal spindle via a drive belt.

[0009] Preferably, the horizontal position of the vertical cutter head end on the vertical spindle is lower than the horizontal position of the horizontal cutter head end on the horizontal spindle.

[0010] Preferably, in order to reduce dust entering the spindle box, the front end face of the vertical spindle box and the horizontal spindle box is provided with a removable dust cover.

[0011] Beneficial effects: This utility model has a compact overall structure and low manufacturing cost by opening a horizontal spindle box and a vertical spindle box on the slide block, and installing a horizontal mechanism and a vertical mechanism inside them respectively. Moreover, vertical and horizontal machining can be realized on the same slide block, and the vertical spindle and horizontal spindle can be changed without moving the slide block, making operation simpler, machining accuracy higher, effectively improving production and processing efficiency, and reducing machining interference zone and tool change time. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 for Figure 1 A schematic diagram of the main structure.

[0014] Figure 3 for Figure 1 A schematic diagram of the left-side view structure.

[0015] Figure 4 for Figure 1 A schematic diagram of the right-side structure.

[0016] In the diagram: 1. Slide body; 2. Vertical spindle box; 3. Horizontal spindle box; 4. Balance telescopic sleeve; 5. Mounting bracket; 6. Vertical spindle; 7. Vertical drive motor; 8. Vertical cutter head end; 9. Horizontal spindle; 10. Horizontal drive motor; 11. Horizontal cutter head end. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model.

[0019] like Figure 1-4 As shown, this embodiment discloses a ram of a gantry machining center with vertical and horizontal dual spindles, which is installed on a machine tool and can machine the vertical and horizontal surfaces of a workpiece. Specifically, it includes a ram body 1, a vertical mechanism and a horizontal mechanism.

[0020] See Figure 1 and Figure 2 The lower part of the front end face of the slide block body 1 has an open structure, from... Figure 2 As can be seen, the lower middle part of the slide block body is divided into two cavity structures by vertically arranged partitions inside the opening. The cavity on the right is a vertical spindle box 2, and the cavity on the left is a horizontal spindle box 3. The front end faces of the vertical spindle box 2 and the horizontal spindle box 3 are provided with removable dust covers.

[0021] See Figure 2 The internal height of the horizontal spindle box 3 is greater than that of the vertical spindle box 2, and the top surfaces of both are at the same level. The bottom surface of the horizontal spindle box 3 extends downward to form a protrusion. An installation hole is provided at the midpoint of the front end face of the protrusion, and the rear end face is an open structure. Several threaded connection holes are provided on the side plates and inside of the vertical spindle box 2 and the horizontal spindle box 3. A connecting frame is provided on the top surface of the slide body. Balance telescopic sleeve rods 4 are installed on the bottom surfaces of both sides of the connecting frame. Slide rails are provided on both sides of the slide body.

[0022] See Figure 1 , Figure 2 and Figure 4The vertical mechanism is set inside the vertical spindle box 2. The vertical mechanism includes a mounting frame 5, a vertical spindle 6, and a vertical drive motor 7. The mounting frame 5 is a hollow square frame with an open bottom surface. A through hole is opened at the midpoint of the top surface of the mounting frame 5, and a square hole is opened at the front end surface. Connecting plates are provided on the left and right end faces of the square hole. Screw holes are opened on the connecting plates, and bolts are installed in the screw holes. The mounting frame 5 is detachably installed on the left and right side plates of the vertical spindle box 2 through the bolt structure on the connecting plates, and is located in the lower middle part of the inner vertical spindle box 2.

[0023] See Figure 2 The vertical spindle 6 is vertically installed inside the vertical spindle box 2 and connected to the mounting bracket 5. The vertical cutter head 8 at its bottom end protrudes outside the bottom surface of the vertical spindle box 2. The vertical drive motor 7 is installed above the mounting bracket 5, and its mounting base is connected to the top surface of the mounting bracket 5. The drive end of the vertical drive motor 7 passes through the square hole on the top surface of the mounting bracket 5 and is directly connected to the vertical spindle 6.

[0024] from Figure 2 As can be seen, the horizontal mechanism is set inside the horizontal spindle box 3. The horizontal mechanism includes a horizontal spindle 9 and a horizontal drive motor 10. The horizontal spindle 9 is a horizontal spindle with a belt. The horizontal spindle 9 is horizontally installed in the lower protrusion of the horizontal spindle box 3. Its horizontal cutter head 11 passes through the mounting hole on the front end face of the protrusion. The horizontal position of the vertical cutter head 8 on the vertical spindle 6 is lower than the horizontal position of the horizontal cutter head on the horizontal spindle 9. The horizontal drive motor 10 is located above the horizontal spindle and connected to the horizontal spindle box 3. The output end of the horizontal drive motor 10 is connected to the horizontal spindle 9 through a drive belt.

[0025] When the slide body is mounted on the machine tool and the vertical surface of the workpiece is machined, a corresponding vertical milling cutter is mounted on the vertical cutter head 8. After the vertical milling cutter is mounted, the bottom surface of the vertical milling cutter exceeds the bottom surface of the horizontal cutter head 11. When milling in the Y, Z and X directions, it will not be blocked or interfered with by the horizontal cutter head 11. During milling, the vertical drive motor 7 drives the vertical spindle 6 and the vertical cutter head 8 on it to rotate so that the vertical milling cutter can machine the vertical surface of the workpiece.

[0026] When machining the horizontal surface of a workpiece, the vertical milling cutter is removed from the vertical cutter head 8 so as not to affect the Z-axis adjustment of the horizontal cutter head 11. A horizontal milling cutter is then installed on the horizontal cutter head 11. After installation, the horizontal drive motor 10 transmits power to the horizontal spindle 9 via a belt. The horizontal spindle 9 drives the horizontal cutter head 11 to rotate the horizontal milling cutter to machine the horizontal surface of the workpiece. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A ram for a gantry machining center with vertical and horizontal dual spindles, comprising a ram body (1), a vertical mechanism, and a horizontal mechanism, characterized in that: The lower part of the front end face of the slide body (1) is an open structure. The lower part of the slide body is divided into two cavity structures by a vertically arranged partition plate. The cavity on the right is a vertical spindle box (2) and the cavity on the left is a horizontal spindle box (3). The height of the horizontal spindle box (3) is greater than that of the vertical spindle box (2), and the top surfaces of the two are at the same level. The bottom surface of the horizontal spindle box (3) extends downward to form a protrusion. An installation hole is provided at the midpoint of the front end face of the protrusion. The rear end face is an open structure. The side plates and interior of the vertical spindle box (2) and the horizontal spindle box (3) are provided with several threaded connection holes. A connecting frame is provided on the top surface of the slide body. Balance telescopic sleeve rods (4) are installed on the bottom surfaces of both sides of the connecting frame. Slide rails are provided on both sides of the slide body. The vertical mechanism is set inside the vertical spindle box (2). The vertical mechanism includes a mounting frame (5), a vertical spindle (6), and a vertical drive motor (7). The mounting frame (5) is a hollow square frame with an open bottom surface. A through hole is opened at the midpoint of the top surface of the mounting frame (5), and a square hole is opened at the front end surface. A connecting plate is provided on the end face of the square hole on both sides. A screw hole is opened on the connecting plate, and a bolt is provided in the screw hole. The mounting frame (5) is detachably installed on the left and right side plates of the vertical spindle box (2) through the bolt structure on the connecting plate, and is located in the lower middle part of the inner vertical spindle box (2). The vertical spindle (6) is vertically installed inside the vertical spindle box (2) and connected to the mounting bracket (5). The vertical cutter head (8) at its bottom end protrudes out of the bottom surface of the vertical spindle box (2). The vertical drive motor (7) is installed above the mounting bracket (5). Its mounting base is connected to the top surface of the mounting bracket (5). The drive end of the vertical drive motor (7) passes through the square hole on the top surface of the mounting bracket (5) and is directly connected to the vertical spindle (6). The horizontal mechanism is set inside the horizontal spindle box (3). The horizontal mechanism includes a horizontal spindle (9) and a horizontal drive motor (10). The horizontal spindle (9) is a horizontal spindle with a belt. The horizontal spindle (9) is horizontally installed in the lower protrusion of the horizontal spindle box (3). Its horizontal cutter head end (11) passes through the mounting hole on the front end face of the protrusion. The horizontal drive motor (10) is located above the horizontal spindle and connected to the horizontal spindle box (3). The output end of the horizontal drive motor (10) is connected to the horizontal spindle (9) through a drive belt.

2. The ram of a gantry machining center with vertical and horizontal dual spindles as described in claim 1, characterized in that: The horizontal position of the vertical cutter head (8) on the vertical spindle (6) is lower than the horizontal position of the horizontal cutter head (11) on the horizontal spindle (9).

3. A ram for a gantry machining center with both vertical and horizontal dual spindles as described in claim 1 or 2, characterized in that: The front end faces of the vertical spindle box (2) and the horizontal spindle box (3) are provided with removable dust covers.

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