Double-station portal frame for machining center

Abstract

The utility model relates to the technical field of machining centers, in particular to a double-station portal frame for a machining center, which comprises a main bracket, two side brackets, two cross beams, two groups of driving pieces and two groups of pressing components, the two side supports are distributed on the two sides of the main support. The two cross beams are distributed on two sides of the main support, one end of each cross beam is rotatably connected with the main support through a first rotating shaft, and the other end is rotatably connected with the side support through a second rotating shaft; the two groups of driving pieces are arranged corresponding to the two cross beams and can drive the cross beams to rotate by taking the first rotating shaft as an axis; the two pressing assemblies correspond to the two cross beams, each pressing assembly comprises a hydraulic cylinder, an outer barrel and a pressing piece, the hydraulic cylinders are fixedly connected to the cross beams, the outer barrels are fixedly connected to the movable ends of the hydraulic cylinders, one part of each pressing piece is rotationally connected into the corresponding outer barrel, and the other part of each pressing piece protrudes out of the corresponding outer barrel and is located below the corresponding outer barrel. The portal frame solves the problems that an existing portal frame is large in material consumption and poor in workpiece pressing stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing center technical field, concretely relates to a double position gantry for processing center. BACKGROUND

[0002] Processing center is by mechanical equipment and numerical control system composition is suitable for processing complex part's high efficiency automation machine tool. It's comprehensive processing capacity is stronger, and the machining precision is higher, and its efficiency is 5~10 times of ordinary equipment.

[0003] The existing processing center includes gantry, and specifically can refer to the gantry of numerical control gantry machining center disclosed in Chinese patent No. CN117444712A, the gantry is pressed tightly by the pressing mechanism arranged in the middle to the material to be processed, and the pressing mechanism needs to be lifted when taking the material, in order to avoid the convenient workpiece taking out, the pressing part of the pressing mechanism needs to be lifted to a higher position, that is, the moving stroke of the pressing mechanism needs to be longer, so that not only the gantry needs to be set higher, the production cost is increased, and the stability of the workpiece pressed by the pressing mechanism is also poor.

[0004] Therefore, it is necessary to provide a technical scheme to solve the above problems. INVENTION CONTENTS

[0005] The utility model provides a double position gantry for processing center, aims at solving the problem that the existing gantry is large in material consumption and poor in pressing stability to workpiece.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a double position gantry for processing center, which comprises a main support, two side supports, two cross beams, two groups of driving parts and two groups of pressing assemblies.

[0007] The two side supports are distributed on the two sides of the main support.

[0008] The two cross beams are distributed on the two sides of the main support, one end of the cross beam is rotatably connected with the main support through a first rotating shaft, and the other end is rotatably connected with the side support through a second rotating shaft.

[0009] The two groups of driving parts are correspondingly arranged with the two cross beams, and the driving part can drive the cross beam to rotate around the first rotating shaft as the axis.

[0010] The two groups of pressing assemblies are correspondingly arranged with the two cross beams, and the pressing assembly comprises a hydraulic cylinder, an outer cylinder and a pressing part, the hydraulic cylinder is fixedly connected to the cross beam, the outer cylinder is fixedly connected to the movable end of the hydraulic cylinder, one part of the pressing part is rotatably connected in the outer cylinder, and the other part protrudes from the outer cylinder and is located below the outer cylinder.

[0011] In some embodiments, the first rotating shaft and the second rotating shaft are formed with threaded portions, and two toothed lock nuts are threadedly connected to the threaded portions, and the two toothed lock nuts are arranged on the upper and lower sides of the cross beam to limit the movement of the cross beam in the vertical direction.

[0012] In some embodiments, the double-station gantry for machining center further comprises a position detection assembly for detecting whether the driving member drives the cross beam to the position.

[0013] In some embodiments, the position detection assembly comprises a first sensing sheet and a second sensing sheet arranged on the cross beam, and a first sensor and a second sensor arranged on the main support.

[0014] When the cross beam moves to the first preset position, the first sensor can detect the first sensing sheet, and when the cross beam moves to the second preset position, the second sensor can detect the second sensing sheet.

[0015] In some embodiments, the double-station gantry for machining center further comprises a limiting block for limiting the movement range of the side support.

[0016] In some embodiments, the limiting block is formed with a positioning notch, and the side support is located in the positioning notch when the side support moves to the first preset position.

[0017] In some embodiments, a buffer is mounted on the limiting block, and the side support is in contact with the buffer when the side support moves to the first preset position.

[0018] In some embodiments, a controller is mounted on the main support.

[0019] The double-station gantry for machining center has the following technical effects:

[0020] The double-station gantry for machining center has the following technical effects: BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The double-station gantry for machining center has the following technical effects:

[0022] Figure 2 The double-station gantry for machining center has the following technical effects: Figure 1An enlarged schematic view at middle A;

[0023] Figure 3 For Figure 1 An enlarged schematic view at middle B;

[0024] Figure 4 A structure schematic view of the pressure assembly in the double-station gantry of the machining center;

[0025] Figure 5 A structure schematic view of the limiting block in the double-station gantry of the machining center.

[0026] Markings in the figure:

[0027] 1, main support; 2, side support; 3, crossbeam; 4, driving member; 5, pressure assembly; 7, limiting block; 8, controller;

[0028] 31, first rotating shaft; 32, second rotating shaft; 33, toothed locking nut;

[0029] 51, hydraulic cylinder; 52, outer cylinder; 53, pressure member;

[0030] 61, first sensing sheet; 62, second sensing sheet; 63, first sensor; 64, second sensor;

[0031] 71, positioning notch; 72, buffer member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0033] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element; when an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0034] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0035] In the description of the embodiments of the utility model, it is understood that the directions or position relations indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0036] In order to more clearly illustrate the technical scheme of the utility model, a preferred embodiment is provided below, and specific reference is made to Figures 1-5 A double-station gantry for machining center, comprising a main support 1, two side supports 2, two cross beams 3, two groups of driving members 4 and two groups of pressing assemblies 5.

[0037] The two side supports 2 are distributed on the two sides of the main support 1.

[0038] The two cross beams 3 are distributed on the two sides of the main support 1, one end of the cross beam 3 is rotationally connected to the main support 1 through a first rotating shaft 31, and the other end is rotationally connected to the side support 2 through a second rotating shaft 32.

[0039] The two groups of driving members 4 are correspondingly arranged with the two cross beams 3, and the driving member 4 can drive the cross beam 3 to rotate around the first rotating shaft 31; the driving member 4 can be an oil cylinder, an electric cylinder or the like.

[0040] The two groups of pressing assemblies 5 are correspondingly arranged with the two cross beams 3, and the pressing assembly 5 comprises a hydraulic cylinder 51, an outer cylinder 52 and a pressing member 53, the hydraulic cylinder 51 is fixedly connected to the cross beam 3, the outer cylinder 52 is fixedly connected to the movable end of the hydraulic cylinder 51, a part of the pressing member 53 is rotationally connected in the outer cylinder 52, and the other part protrudes from the outer cylinder 52 and is located below the outer cylinder 52.

[0041] The double-station gantry for machining center of the utility model is different from the existing gantry in that, firstly, the gantry of the application can simultaneously press and fix two workpieces, thereby improving the machining efficiency of the machining center; secondly, the gantry of the application is additionally provided with a swing structure, when the machining center completes the machining of the workpiece, the driving member 4 can drive the cross beam 3 to rotate and swing, so that the pressing assembly 5 is away from the workpiece, and the worker or the mechanical part can smoothly replace the workpiece, this design greatly reduces the moving stroke requirement of the pressing assembly 5, thereby reducing the height requirement of the gantry, saving the cost of consumables, and improving the pressing stability of the pressing assembly 5; finally, the pressing member 53 on the pressing assembly 5 is designed to be rotatable, the existing part of the workpiece carrier of the machining center can drive the workpiece to rotate, so as to meet the higher machining requirement of the workpiece, and the design of the pressing assembly 5 in the application can be adapted to such a carrier, meet the requirements of different machining centers, and make the gantry more versatile.

[0042] In some embodiments, the first rotating shaft 31 and the second rotating shaft 32 are formed with threaded portions, and two toothed locking nuts 33 are threadedly connected to the threaded portions, and the two toothed locking nuts 33 are distributed on the upper and lower sides of the cross beam 3 to limit the movement of the cross beam 3 in the vertical direction. In actual application, there can be a large difference in the height of different workpieces, and by using this design, the height of the cross beam 3 can be changed by adjusting the position of the toothed locking nut 33, and then the height of the pressing assembly 5 is changed, so as to meet the processing needs of different workpieces.

[0043] Based on the rotatable design of the pressing member 53 in the present application, the concentricity of the pressing member 53 and the worktable is particularly important, and therefore, in some embodiments, the double-station gantry for machining center further comprises a position detection assembly for detecting whether the driving member 4 drives the cross beam 3 to the position, and when the cross beam 3 moves to the position, it indicates that the pressing member 53 is concentric or almost concentric with the worktable, at this time, the worktable can smoothly drive the workpiece to rotate.

[0044] In some embodiments, the position detection assembly comprises a first sensing sheet 61 and a second sensing sheet 62 arranged on the cross beam 3, and a first sensor 63 and a second sensor 64 arranged on the main support 1; wherein the first sensor 63 can detect the first sensing sheet 61 when the cross beam 3 moves to a first preset position, and the second sensor 64 can detect the second sensing sheet 62 when the cross beam 3 moves to a second preset position. Here, the first preset position is set as the position of the cross beam 3 when the pressing assembly 5 presses the workpiece, and the second preset position is set as the position of the cross beam 3 when the pressing assembly 5 moves away from the workpiece.

[0045] In some embodiments, the double-station gantry for machining center further comprises a limiting block 7 for limiting the movement range of the side support 2, so that the cross beam 3 can be accurately stopped when moving to the first preset position or the second preset position.

[0046] In some embodiments, the limiting block 7 is formed with a positioning notch 71, and the side support 2 is located in the positioning notch 71 when moving to the first preset position; in this way, the movement of the side support 2 can be prevented from deviating from the preset track, and the cross beam 3 can be ensured to move to the first preset position or the second preset position.

[0047] In some embodiments, a buffer 72 is installed on the limiting block 7, and the side support 2 is in contact with the buffer 72 when moving to the first preset position; the arrangement of the buffer 72 can avoid the rigid collision between the side support 2 and the limiting block, which not only reduces the risk of damage to the side support 2, but also reduces the risk of position deviation of the pressing assembly 5 due to vibration.

[0048] In some embodiments, the main support 1 is provided with a controller 8; the controller 8 can be used to control the driving member 4 to run, so as to control the rotation of the cross beam 3.

[0049] The above merely describes the preferred embodiments of the present application, and the structure is not limited to the shapes described above, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A double station gantry for machining centers, characterized in that, The utility model relates to a kind of automatic warehouse, including: Main support; Two side supports, two The side support is distributed in the two sides of the main support; Two beams, two The beam is distributed in the two sides of the main support, and one end of the beam is rotatably connected to the main support by a first rotating shaft, and the other end is rotatably connected to the side support by a second rotating shaft; Two groups of driving members, two The driving member is arranged corresponding to two The beam, and the driving member can drive the beam to rotate around the first rotating shaft; Two groups of pressing assemblies, two The pressing assembly is arranged corresponding to two The beam, and the pressing assembly includes a hydraulic cylinder, an outer cylinder and a pressing member, the hydraulic cylinder is fixedly connected to the beam, the outer cylinder is fixedly connected to the movable end of the hydraulic cylinder, and one part of the pressing member is rotatably connected in the outer cylinder, and another part protrudes from the outer cylinder and is located below the outer cylinder.

2. The double station gantry for machining center according to claim 1, characterized in that, The first rotating shaft and the second rotating shaft are formed with a threaded portion, and two toothed lock nuts are threadedly connected to the threaded portion, and the two toothed lock nuts are distributed on the upper and lower sides of the beam to limit the movement of the beam in the vertical direction.

3. The dual station gantry for a machining center of claim 1 wherein, It also includes a position detection assembly for detecting whether the driving member drives the beam to the right position.

4. The double station gantry of claim 3, wherein, The position detection assembly includes a first sensing sheet and a second sensing sheet provided on the beam and a first sensor and a second sensor provided on the main support. When the beam moves to a first predetermined position, the first sensor can detect the first sensing sheet, and when the beam moves to a second predetermined position, the second sensor can detect the second sensing sheet.

5. The dual station gantry of claim 4, wherein, It also includes a limiting block for limiting the movement range of the side support.

6. The dual station gantry of claim 5, wherein, The limiting block is formed with a positioning notch, and the side support is located in the positioning notch when it moves to the first predetermined position.

7. The dual station gantry of claim 6 wherein, A buffer is installed on the limiting block, and the side support is in contact with the buffer when it moves to the first predetermined position.

8. The dual station gantry for a machining center of claim 1 wherein, A controller is installed on the main support.

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