Liftable top oil outlet structure

Abstract

The utility model provides a top oil outlet structure capable of ascending and descending. The top oil outlet structure comprises a base frame, two workbenches, an exchange table, an exchange door assembly, a pipeline support, a clamp rotating connector, a hydraulic oil pipe, a limiting structure and a buffering structure. The workbench is arranged on the base frame and is suitable for placing a workpiece; the exchange table is arranged on the base frame and is configured to drive the working table to move upwards and then drive the working table to rotate around the rotating center of the working table; one end of the pipeline support is connected with the exchange door assembly, and the other end of the pipeline support is connected with the clamp rotating connector. A limiting structure is arranged on the lower side of the pipeline support, and the hydraulic oil pipe is limited on the lower side of the pipeline support through the limiting structure. And the hydraulic oil pipe is limited on the lower side of the pipeline support by arranging the limiting structure, so that the hydraulic oil pipe synchronously moves along with the pipeline support, and the hydraulic oil pipe is prevented from being damaged due to exposure and extrusion.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, and particularly relates to a top oil outlet structure that can be lifted. Background Art

[0002] A numerical control machining center is an automatic processing device developed on the basis of a general milling machine. The machining center has the ability to automatically exchange machining tools. By installing different-purpose tools on the tool magazine, the machining tool on the spindle can be changed through an automatic tool changer during one clamping, realizing multiple machining functions. Machining centers are often classified into vertical machining centers and horizontal machining centers according to the state of the spindle in space. A machining center with a vertical spindle in space is called a vertical machining center, and a machining center with a horizontal spindle in space is called a horizontal machining center.

[0003] The existing horizontal machining center includes a workbench, a pallet changer, a pipeline support, a hydraulic oil pipe, and a fixture rotary joint. The workpiece is suitable for being placed on the workbench. The pipeline support is connected to the workpiece through the fixture rotary joint, and the hydraulic oil pipe is connected to the fixture rotary joint.

[0004] However, when the above-mentioned horizontal machining center is working, the workbench needs to drive the workpiece on it to move. During the movement of the workbench, it is easy to expose and squeeze the top hydraulic oil pipe, causing damage to the hydraulic oil pipe. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is that in the prior art, the top hydraulic oil pipe is easily exposed and squeezed during the upward movement of the workbench, causing damage to the hydraulic oil pipe.

[0006] For this reason, the utility model provides a top oil outlet structure that can be lifted, including:

[0007] A base frame;

[0008] A workbench, arranged on the base frame; the workpiece is suitable for being placed on the workbench;

[0009] A pallet changer, arranged on the base frame, and the pallet changer is configured to drive the workbench to move upward, and then drive the workbench to rotate around its rotation center;

[0010] An exchange door assembly;

[0011] A pipeline support, one end of which is connected to the exchange door assembly, and the other end is connected to a fixture rotary joint, and the fixture rotary joint is suitable for being connected to the top end of the workpiece;

[0012] A hydraulic oil pipe, communicated with the fixture rotary joint to provide pressure to a hydraulic fixture;

[0013] A limiting structure is provided on the lower side of the pipeline support, and the hydraulic oil pipeline is limited to the lower side of the pipeline support through the limiting structure.

[0014] Optionally, the limiting structure is a plurality of hanging rings, and the plurality of hanging rings are arranged along the length direction of the pipeline support, and the hydraulic oil pipeline is threaded through the hanging rings.

[0015] Optionally, the pipeline support includes a first support and a second support;

[0016] One end of the first support is hinged to the exchange door assembly, the other end is hinged to the second support, and the other end of the second support is connected to the fixture rotary joint.

[0017] Optionally, the liftable top oil outlet structure further includes a buffer structure, and the buffer structure is arranged between the pipeline support and the fixture rotary joint;

[0018] The buffer structure is configured to provide space for the upward movement of the workbench between the pipeline support and the fixture rotary joint.

[0019] Optionally, the buffer structure includes:

[0020] A guide shaft sleeve, connected to the pipeline support;

[0021] A guide shaft, one end of which is slidably arranged in the guide shaft sleeve, and the other end of the guide shaft is connected to the fixture rotary joint.

[0022] Optionally, the liftable top oil outlet structure further includes a guide plate, which is connected to the fixture rotary joint, and the end of the guide shaft outside the guide shaft sleeve is connected to the guide plate.

[0023] Optionally:

[0024] A plurality of shaft holes are provided on the guide plate, and the end of the guide shaft outside the guide shaft sleeve penetrates through the shaft holes;

[0025] The liftable top oil outlet structure further includes a fastener, which is connected to the end of the guide shaft penetrating through the shaft hole.

[0026] Optionally:

[0027] The exchange table is located below the workbench, and the distance between the exchange table and the workbench is H1;

[0028] The moving distance of the guide shaft in the guide shaft sleeve is H2;

[0029] Wherein, H1≥H2.

[0030] Optionally, the liftable top oil outlet structure further includes a central rotary joint, which is connected to the exchange door assembly, and the hydraulic oil pipe is communicated with the central rotary joint.

[0031] The liftable top oil outlet structure provided by the present utility model has the following advantages:

[0032] 1. The liftable top oil outlet structure provided by the present utility model includes a base frame, two worktables, an exchange table, an exchange door assembly, a pipeline support, a fixture rotary joint, a hydraulic oil pipe, a limit structure, and a buffer structure. The worktables are arranged on the base frame, and workpieces are suitable to be placed on the worktables; the exchange table is arranged on the base frame, and the exchange table is configured to drive the worktable to move upward, and then drive the worktable to rotate around its rotation center; one end of the pipeline support is connected to the exchange door assembly, and the other end is connected to the fixture rotary joint, and the fixture rotary joint is suitable to be connected to the top end of the workpiece; the hydraulic oil pipe is communicated with the fixture rotary joint to provide pressure for the hydraulic fixture; a limit structure is arranged on the lower side of the pipeline support, and the hydraulic oil pipe is limited to the lower side of the pipeline support through the limit structure.

[0033] For the liftable top oil outlet structure of this structure, a limit structure is arranged on the lower side of the pipeline support, and the hydraulic oil pipe is limited to the lower side of the pipeline support through the limit structure. By arranging the limit structure to limit the hydraulic oil pipe to the lower side of the pipeline support, the hydraulic oil pipe can move synchronously with the pipeline support, avoiding the exposure and extrusion of the hydraulic oil pipe and causing damage to the hydraulic oil pipe.

[0034] 2. The liftable top oil outlet structure provided by the present utility model further includes a buffer structure, and the buffer structure is arranged between the pipeline support and the fixture rotary joint; the buffer structure is configured to provide space for the upward movement of the worktable between the pipeline support and the fixture rotary joint.

[0035] For the liftable top oil outlet structure of this structure, since the exchange table is below the worktable in the initial state, the exchange table needs to move upward for a certain distance before it can drive the worktable to move upward together. During the upward movement of the worktable, since one end of the pipeline support connected to the exchange door assembly does not move upward, in order to avoid interference between the fixture rotary joint and the pipeline support during this process, a buffer structure is arranged between the pipeline support and the fixture rotary joint, and the buffer structure is configured to provide space for the upward movement of the worktable between the pipeline support and the fixture rotary joint. Description of the Drawings

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Structural schematic view of the liftable top oil outlet structure provided in the embodiment of the present invention;

[0038] Figure 2 Structural schematic view of the liftable top oil outlet structure provided in the embodiment of the present invention when the exchange table is lifted;

[0039] Figure 3 Structural schematic view of the liftable top oil outlet structure provided in the embodiment of the present invention when the exchange table is not lifted;

[0040] Figure 4 Structural schematic view of the buffer structure in the liftable top oil outlet structure provided in the embodiment of the present invention.

[0041] Explanation of reference numerals:

[0042] 1 - Base frame;

[0043] 2 - Workbench;

[0044] 3 - Exchange table;

[0045] 4 - Workpiece;

[0046] 51 - Exchange door; 52 - Exchange door sheath; 53 - Upper cross beam of the exchange door;

[0047] 6 - Pipeline support;

[0048] 7 - Hydraulic oil pipe;

[0049] 8 - Hoisting ring;

[0050] 901 - Guide shaft sleeve; 902 - Guide shaft; 903 - Guide plate; 904 - Fastener;

[0051] 10 - Central rotary joint;

[0052] 11 - Clamp rotary joint. Specific embodiments

[0053] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0054] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0055] Embodiment

[0056] This embodiment provides a liftable top oil outlet structure, as Figures 1 to 4 shown, including a base frame 1, two worktables 2, an exchange table 3, an exchange door assembly, a pipeline support 6, a fixture rotary joint 11, a hydraulic oil pipe 7, a limiting structure, and a buffer structure.

[0057] The exchange door assembly includes an exchange door 51, an exchange door sheath 52, and an exchange door upper cross beam 53. The exchange door upper cross beam 53 remains fixed. The exchange door 51 and the exchange door sheath 52 are fixedly connected. The exchange door sheath 52 is connected to the exchange door upper cross beam 53 through a flange and can rotate relative to the exchange door upper cross beam 53. This structure is a conventional structure of a horizontal machining center, so its principle will not be elaborated too much.

[0058] In this embodiment, the worktable 2 is arranged on the base frame 1, and the workpiece 4 is suitable to be placed on the worktable 2; the exchange table 3 is arranged on the base frame 1, and the exchange table 3 is configured to drive the worktable 2 to move upward, and then drive the worktable 2 to rotate around its rotation center; the exchange door 51 and the exchange door sheath 52 are arranged on the upper side of the exchange table 3 and rotate synchronously with the exchange table 3; one end of the pipeline support 6 is connected to the exchange door sheath 52, and the other end is connected to the fixture rotary joint 11. The fixture rotary joint 11 is suitable to be connected to the top end of the workpiece 4; the hydraulic oil pipe 7 is communicated with the fixture rotary joint 11 to provide pressure to the fixture rotary joint 11; a limiting structure is arranged on the lower side of the pipeline support 6, and the hydraulic oil pipe 7 is limited to the lower side of the pipeline support 6 through the limiting structure.

[0059] As Figures 1 to 3As shown in the figure, there are two workbenches 2, which are respectively arranged on both sides of the exchange table 3 and the exchange door 51. By setting two workbenches 2, the workpiece 4 on one workbench 2 is processed, and loading is carried out on the other workbench 2. After the workpiece 4 is processed, the exchange table 3 drives the two workbenches 2 to change positions. This method can improve production efficiency.

[0060] Specifically, as Figure 3 shown is the structural schematic view of the exchange table 3 when it is not lifted. In the initial state, the exchange table 3 is located below the workbench 2. When the position of the workbench 2 needs to be changed, the exchange table 3 moves upward until it is connected to the two workbenches 2 and continues to move upward in place, and then drives the two exchange tables 3 to rotate 180°, realizing the position change of the two workbenches 2. Specifically, a clamping part can be set on the side of the workbench 2, and a clamping adapter is provided on the exchange table 3 to realize the connection and fixation of the two. This process is the basic working method of the existing horizontal machining center, so its working principle will not be elaborated here.

[0061] In this embodiment, when processing the workpiece 4, the workbench 2 needs to move along Figure 1 the center line A. Since the hydraulic oil pipe 7 is located above the workpiece 4 and moves synchronously with the workpiece 4, it is easy to cause the exposure and extrusion of the hydraulic oil pipe 7, resulting in damage to the hydraulic oil pipe 7.

[0062] Therefore, in this embodiment, a limiting structure is provided on the lower side of the pipeline support 6, and the hydraulic oil pipe 7 is limited to the lower side of the pipeline support 6 through the limiting structure. By setting the limiting structure to limit the hydraulic oil pipe 7 to the lower side of the pipeline support 6, the hydraulic oil pipe 7 moves synchronously with the pipeline support 6, avoiding the exposure and extrusion of the hydraulic oil pipe 7 and causing damage to the hydraulic oil pipe 7.

[0063] In this embodiment, as Figure 2 shown, the limiting structure is a number of lifting rings 8. The number of lifting rings 8 is arranged along the length direction of the pipeline support 6, and the hydraulic oil pipe 7 is threaded through the lifting rings 8, which can support and fix the passing hydraulic oil pipe 7, avoiding the extrusion and wear of the hydraulic oil pipe 7 during movement. Among them, the number of lifting rings 8 can be determined according to requirements.

[0064] In this embodiment, as Figure 1 shown, the pipeline support 6 includes a first support and a second support. One end of the first support is hinged to the exchange door sheath 52, and the other end is hinged to the second support. The other end of the second support is connected to the fixture rotary joint 11. By setting the first support and the second support to be hinged and the first support to be hinged to the exchange door sheath 52, when the workbench 2 moves along Figure 1 the center line A, the first support and the second support can rotate at their respective hinge points, ensuring the smooth operation of the workbench 2.

[0065] The liftable top oil outlet structure of this embodiment is provided with an exchange door 51 and an exchange door sheath 52 on the upper side of the exchange table 3. One end of the pipeline support 6 is hinged to the exchange door sheath 52, and the other end of the pipeline support 6 is fixed to the workpiece 4 through a clamp rotary joint 11. Since the exchange table 3 is located below the workbench 2 in the initial state, the exchange table 3 needs to move upward for a certain distance before it can drive the workbench 2 to move upward together. During the upward movement of the workbench 2, since the exchange door 51 and the exchange door sheath 52 remain in place and do not move upward with the exchange table 3, interference will occur at the clamp rotary joint 11 and the pipeline support 6. To avoid interference at the clamp rotary joint 11 and the pipeline support 6 during this process, a buffer structure is provided between the pipeline support 6 and the clamp rotary joint 11 in this embodiment. The buffer structure is configured to provide space for the upward movement of the workbench 2 and the clamp rotary joint 11 between the pipeline support 6 and the clamp rotary joint 11.

[0066] Specifically, as Figure 4 shown, the buffer structure includes a guide shaft sleeve 901, a guide shaft 902, a guide plate 903, and a fastener 904. The guide shaft sleeve 901 is connected to the pipeline support 6, and the guide shaft sleeve 901 opens downward. The upper end of the guide shaft 902 is slidably arranged in the guide shaft sleeve 901, and the lower end of the guide shaft 902 is connected to the clamp rotary joint 11. By providing the guide shaft sleeve 901 and the guide shaft 902, when a relative displacement occurs between the clamp rotary joint 11 and the pipeline support 6, the guide shaft 902 can slide inside the guide shaft sleeve 901, thereby allowing a relative displacement to occur between the clamp rotary joint 11 and the pipeline support 6.

[0067] In this embodiment, the exchange table 3 is located below the workbench 2, and the distance between the exchange table 3 and the workbench 2 is H1. The moving distance of the guide shaft 902 in the guide shaft sleeve 901 is H2; where H1≥H2.

[0068] By setting the distance between the exchange table 3 and the workbench 2 to be greater than or equal to the moving distance of the guide shaft 902 in the guide shaft sleeve 901, it is possible to prevent the buffer distance between the pipeline support 6 and the clamp rotary joint 11 of the buffer structure from being less than the relative displacement distance between the pipeline support 6 and the clamp rotary joint 11.

[0069] In this embodiment, as Figure 4As shown, the guide plate 903 is fixedly connected to the fixture rotary joint 11, and the end of the guide shaft 902 outside the guide shaft sleeve 901 is connected to the guide plate 903. Among them, a number of shaft holes are provided on the guide plate 903, the end of the guide shaft 902 outside the guide shaft sleeve 901 penetrates through the shaft holes, and the fastener 904 is connected to the end of the guide shaft 902 penetrating through the shaft holes. In this embodiment, the fastener 904 is fixed to the end of the guide shaft 902 through the external thread at the end of the guide shaft 902. By screwing the fastener 904, its position on the end of the guide shaft 902 can be adjusted, and thus the length of the guide shaft 902 inside the guide shaft sleeve 901 can be adjusted. The fastener 904 is preferably a nut.

[0070] In this embodiment, the central rotary joint 10 is connected to the upper cross beam 53 of the exchange door, and the hydraulic oil pipe 7 is communicated with the central rotary joint 10. Since the central rotary joint 10 uses existing components, its working principle will not be elaborated here too much.

[0071] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A liftable top oil outlet structure, comprising: Base frame (1); A workbench (2) is arranged on the base frame (1); the workbench (2) is suitable for placing a workpiece (4); An exchange platform (3) is arranged on the base frame (1), and the exchange platform (3) is configured to drive the workbench (2) to move upward, and then drive the workbench (2) to rotate around the rotation center of the exchange platform (3); Swap door assembly; A pipeline bracket (6), one end of which is connected to the exchange gate assembly, and the other end of which is connected to a fixture rotary joint (11), wherein the fixture rotary joint (11) is suitable for connecting to the top end of the workpiece (4); A hydraulic oil pipe (7) connected to the clamp rotary joint (11) to provide pressure to the hydraulic clamp; Features: A limiting structure is provided on the lower side of the pipeline support (6), and the hydraulic oil pipe (7) is limited on the lower side of the pipeline support (6) by the limiting structure.

2. The liftable top oil outlet structure according to claim 1, wherein, The limiting structure is a plurality of lifting rings (8), the plurality of lifting rings (8) are arranged along the length direction of the pipeline support (6), and the hydraulic oil pipe (7) is inserted into the lifting rings (8).

3. The liftable top oil outlet structure according to claim 2, characterized in that, The pipeline support (6) comprises a first support and a second support; One end of the first bracket is hinged to the exchange door assembly, and the other end is hinged to the second bracket, and the other end of the second bracket is connected to the clamp rotary joint (11).

4. The liftable top oil outlet structure according to claim 2, wherein, It also includes a buffer structure, which is arranged between the pipeline support (6) and the clamp rotating joint (11); The buffer structure is configured to provide space between the pipeline support (6) and the fixture rotating joint (11) for the workbench (2) to move upward.

5. The liftable top oil outlet structure according to claim 4, wherein, The buffer structure comprises: A guide shaft sleeve (901) connected to the pipeline support (6); One end of the guide shaft (902) is slidably disposed in the guide shaft sleeve (901), and the other end of the guide shaft (902) is connected to the fixture rotary joint (11).

6. The liftable top oil outlet structure according to claim 5, characterized in that, It also includes a guide plate (903) connected to the fixture rotary joint (11), and the end of the guide shaft (902) located outside the guide shaft sleeve (901) is connected to the guide plate (903).

7. The liftable top oil outlet structure according to claim 6, characterized in that: The guide plate (903) is provided with a plurality of axial holes, and the end of the guide shaft (902) located outside the guide shaft sleeve (901) passes through the axial holes; It also includes a fastener (904) connected to one end of the guide shaft (902) passing through the shaft hole.

8. The liftable top oil outlet structure according to claim 7, characterized in that: The exchange platform (3) is located at the lower side of the workbench (2), and the distance between the exchange platform (3) and the workbench (2) is H1; The guide shaft (902) moves a distance H2 in the guide shaft sleeve (901); Among them, H1≥H2.

9. The liftable top oil outlet structure according to any one of claims 1-8, characterized in that, It also comprises a central rotating joint (10) connected to the exchange door assembly, and the hydraulic oil pipe (7) is in communication with the central rotating joint (10).

Images