CN201711768U - Pentahedral milling head for numerically-controlled gantry machining center - Google Patents

Abstract

The utility model relates to a pentahedral milling head for a numerically-controlled gantry machining center. The milling head adopts the structure that a vertical main shaft and a horizontal main shaft in a box body are connected with a helical gear and a bevel gear respectively; another bevel gear meshed with the helical gear and another helical gear meshed with the former bevel gear are connected with a horizontal transitional shaft; the horizontal transitional shaft is parallel to the horizontal main shaft; a lower contrite gear is connected to the box body; an upper contrite gear meshed with the lower contrite gear is connected to a front cover of an oil cylinder; a piston rod is connected to the box body; the piston rod is sleeved by a piston; an upper clutch is fixed at the lower part of the piston rod; and a lower clutch meshed with the upper clutch is connected to a vertical transmission shaft. The utility model solves the defects of a horizontal or vertical milling head that the processing of complex and polyhedral workpieces is labor-consuming, toilsome and low-efficiency. By adopting the horizontal main shaft, the utility model can process workpieces at any angle, thereby saving the time and improving the efficiency.

Description

A pentahedral milling head of CNC gantry machining center

technical field

The utility model relates to a milling head of a numerical control gantry machining center, in particular to a pentahedron milling head of a numerical control gantry machining center.

Background technique

The milling head part of the CNC gantry machining center is the final component that realizes the cutting of the workpiece by the machine tool. Existing milling heads are generally horizontal or vertical in a single form. When processing complex and multi-faceted workpieces, different milling heads are often replaced according to processing needs. This processing process is time-consuming, laborious and inefficient.

Contents of the invention

The purpose of this utility model is to overcome the above-mentioned defects and provide a pentahedron milling head of a CNC gantry machining center.

The technical scheme adopted in the utility model is:

A pentahedral milling head of a CNC gantry machining center, its main technical feature is that the vertical main shaft and the horizontal main shaft in the box are respectively connected with a helical gear and a bevel gear, another bevel gear meshed with the helical gear and another helical gear meshed with the bevel gear The gears are connected to the horizontal transition shaft, which is parallel to the horizontal main shaft; the lower toothed disc is connected to the box body, and the upper toothed disc meshed with the lower end toothed disc is connected to the front cover of the oil cylinder, and the piston rod is connected to the box body. The piston is sleeved on the piston rod, the upper clutch is fixed on the lower part of the piston rod, and the lower clutch engaged with the upper clutch is connected to the vertical transmission shaft.

The beneficial effects of the utility model are: since the milling head is equipped with a device for rotating and indexing the horizontal spindle around the vertical spindle, the horizontal spindle has many processing angles during the processing process, and the workpiece can be processed at various angles by using the horizontal spindle. Processing, because the indexing, positioning, and clamping are all carried out automatically under the control of the computer, it can efficiently process the workpiece on five sides (and multiple sides), which saves time in the processing of the machine tool, improves the effect, and greatly improves the quality of the workpiece. Increased machining accuracy.

Description of drawings

Fig. 1 - the front view of the utility model.

Fig. 2 - the top view of the utility model.

in:

Box 1, vertical main shaft 2, vertical main shaft clamping assembly 3, horizontal bevel gear 4, vertical bevel gear 5, large sealing sleeve 6, outer sealing sleeve 7, cylinder front cover 8, piston 9, vertical transmission shaft 10, upper clutch 11. Lower clutch 12, piston rod 13, upper toothed disc 14, lower toothed disc 15, horizontal transition shaft 16, horizontal main shaft 17, helical gear 18, horizontal main shaft helical gear 19.

Detailed ways

As shown in Figure 1 and Figure 2:

A pentahedron milling head of a CNC gantry machining center, in which a vertical spindle 2 and a horizontal spindle 17 are arranged in a box body 1, a vertical spindle clamping assembly 3 is connected to the vertical spindle 2, and a vertical bevel gear 5 is installed on the vertical spindle 2, The horizontal bevel gear 4 meshed with the vertical bevel gear 5 is connected to the horizontal transition shaft 16, the horizontal transition shaft 16 is parallel to the horizontal main shaft 17, the horizontal transition shaft 16 is connected with a helical gear 18, and the horizontal main shaft helical gear 19 is connected to the horizontal main shaft 17 Above; the outer sealing sleeve 7 is connected with the front cover 8 of the oil cylinder, the large sealing sleeve 6 is set on the outer sealing sleeve 7, and the horizontal main shaft 17 rotating indexing device is arranged in the inner circular hole, that is, the upper end face gear plate 14 and the lower end face gear plate 15. The upper toothed plate 14 is installed on the front cover 8 of the oil cylinder, while the lower toothed plate 15 is installed on the box body 1 of the milling head, and the inner center of the lower toothed plate 15 is connected with the box body 1 by a piston rod 13. The piston 9 is pressed on the piston rod 13, the bottom of the piston rod 13 is connected with the upper clutch 11, and the lower clutch 12 engaged with it is connected with the vertical transmission shaft 10.

The drive of the vertical main shaft 2 is transmitted to the vertical main shaft 2 by the main shaft servo motor through the vertical transmission shaft 10 to realize the purpose of rotating and cutting the vertical main shaft 2. At the same time, through a pair of bevel gears (the horizontal bevel gear 4 and the vertical bevel gear 5) Cylindrical helical gears (helical gear 18 and horizontal main shaft helical gear 19) realize the rotary cutting of horizontal main shaft 17.

The casing 1 fixes the cutting head on the machine tool through the front cover 8 of the oil cylinder. Since the lower toothed disk 15 is fixed on the casing 1, the upper toothed disk 14 is connected with the front cover 8 of the oil cylinder. After starting up, the hydraulic station of the machine tool starts to work, so that the side milling head is in a state of precise positioning and clamping, and the cutting head can perform various processing on the upper surface of the workpiece.

The utility model application description is as follows:

When it is necessary to carry out side milling, oil is fed into the clamping oil cylinder located on the upper part of the milling head, and the piston 9 moves down; the lower tooth plate 15 is disengaged, and the upper clutch 11 installed on the piston rod 13 descends together with the lower tooth plate 15 , meshed with the lower clutch 12, the connecting part above the box body 1 is in a fixed state, and the box body 1 is in an active state. A 90°rotation switch and a loosening and clamping switch are installed on the outer sealing sleeve 7. Through the low-speed rotation of the spindle motor, the box body 1 can be driven to rotate. Through the signal sent by the induction switch and the stop iron, the milling machine rotates to the position. The head senses the signal sent by the switch to move the piston 9 upwards, driving the lower end face toothed disc 15 on the milling head to mesh with the upper end face toothed disc 14, so as to realize the positioning and clamping purpose after the milling head rotates. At this time, the upper clutch 11 and the lower clutch 12 that were originally engaged during the rotation of the milling head are disengaged again, and the high-speed milling work of the first side can be carried out at this moment. Repeating the above process over and over again, the second and third surfaces of the workpiece can be processed sideways. When motion triggers the switch, the command is executed automatically. The upper toothed disc 14 and the lower toothed disc 15 can use a reasonable number of teeth according to the precision of indexing, and perform precise indexing through the encoder mounted on the spindle motor. degree, the upper end face toothed disc 14 and the lower end face toothed disc 15 can adopt 72 teeth.

A pentahedron milling head of a CNC gantry machining center enables the machine tool to have the ability to perform multi-surface machining in one clamping, which can save clamping time and manpower, and because each action is automatically connected by computer control for processing, the accuracy is higher. , Faster processing speed. It is suitable for processing curved surfaces and inclined surfaces with complex shapes, as well as drilling, tapping, reaming, boring and other processes. It is suitable for various small batch production in aviation, shipbuilding, military industry and general machinery manufacturing industry.

Claims (4)

1. A pentahedral milling head of a CNC gantry machining center, characterized in that the vertical main shaft and the horizontal main shaft in the box are respectively connected to a helical gear and a bevel gear, another bevel gear meshed with the helical gear and another helical gear meshed with the bevel gear The gears are connected to the horizontal transition shaft, which is parallel to the horizontal main shaft; the lower toothed disc is connected to the box body, and the upper toothed disc meshed with the lower end toothed disc is connected to the front cover of the oil cylinder, and the piston rod is connected to the box body. The piston is sleeved on the piston rod, the upper clutch is fixed on the lower part of the piston rod, and the lower clutch engaged with the upper clutch is connected to the vertical transmission shaft. 2. A pentahedron milling head of a CNC gantry machining center according to claim 1, characterized in that the vertical spindle tool holder assembly is connected to the vertical spindle. 3. The pentahedron milling head of a numerically controlled gantry machining center according to claim 1, wherein the upper end tooth disc is installed on the front cover of the oil cylinder. 4. A pentahedron milling head of a CNC gantry machining center according to claim 1, characterized in that a piston rod is connected to the casing at the center thereof, the piston is pressed on the piston rod, and the lower part of the piston rod is connected to the upper clutch, and The lower clutch engaged by the upper clutch is connected to the vertical transmission shaft.

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