Gantry transfer type concave-convex embedded machine head structure of machining center

Abstract

The utility model relates to the field of machine tools, in particular to a gantry transfer type concave-convex embedded machine head structure of a machining center, which comprises a gantry type vertical arm, a spindle ram and a machine head seat, the spindle ram is fixedly connected with a transverse slide rail component on the gantry type vertical arm through an L-shaped mounting table on the back, and two groups of longitudinal slide rail components are arranged on the front side of the spindle ram. A headstock and a spindle ram are of a concave-convex matched embedded structure and are movably connected through a longitudinal sliding rail assembly, and a cross beam of a gantry type vertical arm is of a structure with the two ends extending outwards, so that the transverse transferring stroke is increased, and the working flexibility of equipment is improved; a concave-convex matched embedded structure is adopted between the headstock and the spindle ram, so that the size of the headstock is reduced, the outward protruding space is reduced, the matching tightness between the headstock and the spindle ram is increased, the overall rigidity of the headstock is improved, the stability of equipment is guaranteed, large workpieces can be flexibly machined, and the machining efficiency is improved. And the machining precision of the equipment can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of processing machine tool especially relates to a gantry moving and loading type concave-convex embedded machine head structure of machining center. BACKGROUND

[0002] With the development of industry, five-axis linkage machining center is widely applied due to its flexibility and accuracy. The five-axis linkage machining center is an automatic machine tool equipped with a program control system, mainly composed of mechanical equipment and numerical control system. It has an automatic tool changer, so that the workpiece can be continuously machined after being clamped once, and can complete drilling, boring, milling, reaming, tapping and other multi-process machining work.

[0003] The existing five-axis machining center on the market is mostly a three-axis machining center with two-axis cradle structure added on the workbench to achieve five-axis linkage machining. However, due to the limitation of structure, the moving space of horizontal X-axis and vertical Z-axis is small, and the size of workpiece processing is also limited. If large parts need to be processed, large-size machine tables need to be customized, which not only increases the equipment cost, but also increases the land occupation of the equipment, and brings inconvenience to transportation and use. After the size of the equipment is increased, the overall stability is also reduced, and the machining precision is difficult to guarantee.

[0004] Therefore, in view of the above problems, the utility model fills this defect. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at the deficiency of prior art, and provides a gantry moving and loading type concave-convex embedded machine head structure of machining center, which has a scientific structure. By extending the beam of the gantry type vertical arm at both ends, the stroke of horizontal moving and loading is increased without increasing the size of the equipment base and the span of the vertical arm lower column, and the flexibility of equipment work is improved. By adopting the embedded structure of concave-convex matching between the machine head seat and the main shaft slide, the volume of the machine head seat is reduced, the outward protruding space is reduced, the tightness between the machine head seat and the main shaft slide is increased, the overall rigidity of the machine head seat is improved, the stability of the equipment is guaranteed, not only larger workpieces can be flexibly machined, but also the machining precision of the equipment can be guaranteed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The machine head structure of the gantry moving and loading type concave-convex embedding machine of a machining center comprises a gantry vertical arm, a main shaft ram and a machine head seat, the front surface of the crossbeam of the gantry vertical arm is provided with two groups of transverse slide rail assemblies, the top surface of the crossbeam of the gantry vertical arm is provided with a group of transverse slide rail assemblies, the back of the main shaft ram is provided with an inverted L-shaped mounting table, the main shaft ram is fixedly connected with the transverse slide rail assemblies on the gantry vertical arm through the L-shaped mounting table at the back, the front surface of the main shaft ram is provided with two groups of longitudinal slide rail assemblies, and the machine head seat and the main shaft ram are in a concave-convex matching embedded structure and are movably connected through the longitudinal slide rail assemblies.

[0008] Preferably, the two groups of transverse slide rail assemblies on the front surface of the crossbeam of the vertical arm and the transverse slide rail assembly on the top surface of the crossbeam are arranged in parallel with each other, one end of the crossbeam of the vertical arm is fixedly connected with a transverse moving and loading servo motor, the side edge of the group of transverse slide rail assemblies on the top surface is provided with a transverse grating encoder, the crossbeam of the vertical arm between the two groups of transverse slide rail assemblies on the front surface is provided with a transverse transmission screw rod, one end of the transverse transmission screw rod is connected with the power output shaft of the transverse moving and loading servo motor, a transverse transmission nut is movably connected to the upper surface of the transverse transmission screw rod, and the transverse transmission nut is further fixedly connected with the back of the main shaft ram.

[0009] Preferably, the two groups of longitudinal slide rail assemblies on the front surface of the main shaft ram are arranged in parallel, the side edge of one group of the longitudinal slide rail assemblies is provided with a longitudinal grating encoder, the top of the main shaft ram is fixedly connected with a longitudinal lifting servo motor, a longitudinal transmission screw rod is arranged between the two groups of longitudinal slide rail assemblies on the front surface of the main shaft ram, a longitudinal transmission nut is movably connected to the upper surface of the longitudinal transmission screw rod, one end of the longitudinal transmission screw rod is connected with the power output shaft of the longitudinal lifting servo motor, and the longitudinal transmission nut is further fixedly connected with the back of the machine head seat.

[0010] Preferably, the gantry vertical arm is in a bridge structure, and the crossbeam at the upper portion of the vertical arm and the transverse slide rail assemblies above the crossbeam all extend to the two sides of the column of the vertical arm.

[0011] Preferably, the main shaft ram is in a concave-shaped structure in the top view, and the two groups of longitudinal slide rail assemblies are arranged at the convex portions of the two side edges of the main shaft ram respectively.

[0012] Preferably, the machine head seat is in a convex-shaped structure in the top view, and the concave edges of the two sides are fixedly connected with the longitudinal slide rail assemblies of the two side edges of the main shaft ram.

[0013] Preferably, the longitudinal transmission screw rod is arranged at the central concave portion of the main shaft ram, and the longitudinal transmission nut is fixedly connected with the central convex portion at the back of the machine head seat.

[0014] Compared with the prior art, the machine head structure of the gantry moving and loading type concave-convex embedding machine of a machining center has the following beneficial effects:

[0015] 1. The utility model discloses a gantry type vertical arm crossbeam adopts the structure of extending to the outside at both ends, increases the stroke of horizontal transfer under the condition of not increasing the equipment base size and vertical arm lower stand span, improves the flexibility of equipment work, and it is convenient for processing larger workpieces.

[0016] 2. The utility model discloses the recess and protrusion matched embedded structure between the headstock and main shaft ram, reduces the volume of headstock, reduces the outward protruding space, increases the compactness between headstock and main shaft ram, improves the overall rigidity of headstock, guarantees the stability of equipment, not only can flexible processing larger workpiece, but also can guarantee the machining precision of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the exploded structure schematic diagram of the utility model;

[0019] Figure 3 It is the top view of the utility model;

[0020] Figure 4 It is the front view of the utility model. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiment, and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] As Figures 1-4As shown, the utility model discloses a gantry moving and carrying type concave-convex embedded machine head structure of machining center, include: gantry type vertical arm 1, main shaft slide rest 2, machine head seat 3, the front of the beam of gantry type vertical arm 1 is provided with two groups of transverse slide rail components 10, the top surface of the beam of gantry type vertical arm 1 is provided with a group of transverse slide rail components 10, the back of main shaft slide rest 2 is provided with the inverted L type mounting table 201, and the main shaft slide rest 2 is fixedly connected with the transverse slide rail component 10 on the gantry type vertical arm 1 through the L type mounting table 201 of back, and the front of main shaft slide rest 2 is provided with two groups of longitudinal slide rail components 20, and the machine head seat 3 and main shaft slide rest 2 are embedded structure of concave-convex cooperation, and are movably connected through longitudinal slide rail component 20.

[0024] The two groups of transverse slide rail components 10 of the front of vertical arm 1 beam and the transverse slide rail component 10 of the top surface of the beam are arranged in parallel with each other, one end of the beam of vertical arm 1 is fixed with transverse moving and carrying servo motor 11, the side of the top surface group of transverse slide rail components 10 is provided with transverse grating encoder 14, the beam of vertical arm 1 between the front two groups of transverse slide rail components 10 is provided with transverse transmission screw rod 12, one end of transverse transmission screw rod 12 is connected with the power output shaft of transverse moving and carrying servo motor 11, transverse transmission screw rod 12 is movably connected with transverse transmission nut 13, and transverse transmission nut 13 is also fixedly connected with the back of main shaft slide rest 2.

[0025] The two groups of longitudinal slide rail components 20 of the front of main shaft slide rest 2 are arranged in parallel, and the side of one group of longitudinal slide rail components 20 is provided with longitudinal grating encoder 24, the top of main shaft slide rest 2 is fixed with longitudinal lifting servo motor 21, longitudinal transmission screw rod 22 is arranged between the two groups of longitudinal slide rail components 20 of the front of main shaft slide rest 2, longitudinal transmission screw rod 22 is movably connected with longitudinal transmission nut 23, one end of longitudinal transmission screw rod 22 is connected with the power output shaft of longitudinal lifting servo motor 21, and longitudinal transmission nut 23 is also fixedly connected with the back of machine head seat 3.

[0026] The gantry type vertical arm 1 is of bridge type structure, and the beam of the upper portion of vertical arm 1 and the transverse slide rail component 10 above it all extend to the two sides of the column of vertical arm 1, by adopting the structure that the beam of gantry type vertical arm 1 extends outward at two ends, the stroke of transverse moving and carrying is increased without increasing the size of equipment base and the span of the lower column of vertical arm, the flexibility of equipment work is improved, and it is convenient to process larger workpieces.

[0027] The top view section of the main shaft ram 2 is concave letter structure, two groups of longitudinal slide rail assemblies 20 are arranged at the convex position of the two side edges of the main shaft ram 2 respectively; the top view section of the headstock 3 is convex letter structure, the concave edges of the two sides are fixedly connected with the longitudinal slide rail assemblies 20 of the two side edges of the main shaft ram 2; the longitudinal transmission screw rod 22 is arranged at the center concave position of the main shaft ram 2, the longitudinal transmission nut 23 is fixedly connected with the center convex position of the back of the headstock 3, through the embedded structure of the concave-convex cooperation between the headstock and the main shaft ram, the volume of the headstock is reduced, the outward protruding space is reduced, the tightness of the cooperation between the headstock and the main shaft ram is increased, the overall rigidity of the headstock is improved, the stability of the equipment is ensured, not only the larger workpiece can be processed flexibly, but also the machining precision of the equipment can be ensured.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A gantry transfer type concave-convex inlay head structure of a machining center, comprising: The gantry type vertical arm (1), the main shaft ram (2), and the headstock (3) are characterized in that: the two groups of transverse slide rail assemblies (10) are arranged on the front surface of the crossbeam of the gantry type vertical arm (1), and one group of transverse slide rail assemblies (10) is arranged on the top surface of the crossbeam of the gantry type vertical arm (1); the L-shaped mounting table (201) is arranged on the back of the main shaft ram (2) in an inverted manner, the main shaft ram (2) is fixedly connected with the transverse slide rail assemblies (10) on the gantry type vertical arm (1) through the L-shaped mounting table (201) on the back, the two groups of longitudinal slide rail assemblies (20) are arranged on the front surface of the main shaft ram (2), and the headstock (3) and the main shaft ram (2) are in a concave-convex embedded structure and are movably connected through the longitudinal slide rail assemblies (20).

2. The machining center's gantry transfer type concave-convex inlay head structure according to claim 1, characterized in that: The two groups of transverse slide rail assemblies (10) arranged on the front surface of the crossbeam of the gantry type vertical arm (1) and the transverse slide rail assembly (10) arranged on the top surface of the crossbeam are arranged in parallel with each other, one end of the crossbeam of the gantry type vertical arm (1) is fixedly connected with the transverse moving and carrying servo motor (11), the side edge of the one group of transverse slide rail assemblies (10) arranged on the top surface is provided with the transverse grating encoder (14), the crossbeam of the gantry type vertical arm (1) between the two groups of transverse slide rail assemblies (10) arranged on the front surface is provided with the transverse transmission screw rod (12), one end of the transverse transmission screw rod (12) is connected with the power output shaft of the transverse moving and carrying servo motor (11), the transverse transmission screw rod (12) is movably connected with the transverse transmission nut (13), and the transverse transmission nut (13) is further fixedly connected with the back of the main shaft ram (2).

3. The machining center's gantry transfer type concave-convex inlay head structure according to claim 1, characterized in that: The two groups of longitudinal slide rail assemblies (20) arranged on the front surface of the main shaft ram (2) are arranged in parallel with each other, the side edge of one group of the longitudinal slide rail assemblies (20) is provided with the longitudinal grating encoder (24), the top of the main shaft ram (2) is fixedly connected with the longitudinal lifting servo motor (21), the longitudinal transmission screw rod (22) is arranged between the two groups of longitudinal slide rail assemblies (20) arranged on the front surface of the main shaft ram (2), the longitudinal transmission screw rod (22) is movably connected with the longitudinal transmission nut (23), one end of the longitudinal transmission screw rod (22) is connected with the power output shaft of the longitudinal lifting servo motor (21), and the longitudinal transmission nut (23) is further fixedly connected with the back of the headstock (3).

4. The machining center's gantry transfer type concave-convex inlay head structure according to claim 1, characterized in that: The gantry type vertical arm (1) is in a bridge type structure, and the crossbeam of the gantry type vertical arm (1) and the transverse slide rail assemblies (10) arranged thereon all extend to the two sides of the column of the gantry type vertical arm (1).

5. The machining center's portal transfer type concave-convex inlay head structure according to claim 1, characterized in that: The main shaft ram (2) is in a concave-shaped structure in the top view, and the two groups of longitudinal slide rail assemblies (20) are arranged at the convex positions of the two side edges of the main shaft ram (2), respectively. The headstock (3) is in a convex-shaped structure in the top view, and the concave edges of the two sides are fixedly connected with the longitudinal slide rail assemblies (20) of the two side edges of the main shaft ram (2).

6. The machining center's gantry transfer type concave-convex inlay head structure according to claim 3, characterized in that: The longitudinal transmission screw rod (22) is arranged at the central concave position of the main shaft ram (2), and the longitudinal transmission nut (23) is fixedly connected with the central convex position of the back of the headstock (3).

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