Rotary drag chain

Abstract

The utility model discloses a rotary drag chain, which belongs to the technical field of drag chains of numerical control machine tools and comprises a front-end supporting seat and a rear-end supporting seat, a rolling shaft is rotatably connected between the front-end supporting seat and the rear-end supporting seat, a rotating shaft cross is fixedly mounted on the surface of the rear-end supporting seat, and a guide rail slider component is fixedly mounted on the surface of the rear-end supporting seat. A sliding block mounting block is slidably connected into the guide rail sliding block assembly, a rotating shaft is rotatably connected into the sliding block mounting block, a drag chain rotating disc is rotatably connected to the side face of the rear end supporting seat, and a drag chain is rotatably connected into the drag chain rotating disc. Compared with a traditional rotary distributor, an electric slip ring and other devices, the rotary drag chain structure adopting the pure mechanical design structure is higher in cost performance, non-standard customized design can be conducted according to the number of pipelines, and all adverse factors in the using process are reduced or even avoided from the design end.

Description

Technical Field

[0001] The utility model belongs to the technical field of drag chains for numerically controlled machine tools, in particular to a rotary drag chain. Background Art

[0002] Drag chains have been widely used in various reciprocating motion occasions, which can effectively protect and pull built-in cables, oil pipes, air pipes, water pipes, etc. In rotary reciprocating motion occasions, the cable capacity of current rotary drag chains is extremely limited, and can only solve the application conditions with a small number of cables and pipelines. When the number of cables and pipelines reaches a certain level, the existing rotary drag chains will be helpless in the required working space because there is not enough internal space to build these cables and pipelines, and cannot meet the use requirements.

[0003] At present, the pipelines of ordinary horizontal machining centers, whether distributed internally or externally, are all stirred back and forth along with the rotating shaft. At high-position strokes, they can usually only be hung on one side of the equipment, which will cause mixing and squeezing between various pipelines without rules. At the same time, some hoses, such as air pipes, will bend or even break, which will greatly affect the life of the pipelines and the performance of the entire machine. A rotating drag chain is now proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a rotary drag chain to solve the above problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a rotating drag chain, comprising a front end support seat and a rear end support seat, a roller is rotatably connected between the front end support seat and the rear end support seat, a rotating shaft cross is fixedly installed on the surface of the rear end support seat, a guide rail slider assembly is fixedly installed on the surface of the rear end support seat, a slider mounting block is slidably connected inside the guide rail slider assembly, a rotating shaft is rotatably connected inside the slider mounting block, a drag chain turntable is rotatably connected to the side of the rear end support seat, a drag chain turntable is rotatably connected inside the drag chain turntable, and one end of the roller is fixedly connected to the surface of the drag chain turntable.

[0006] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0007] Further technical solution: the front end support seat and the rear end support seat are both fixedly installed on the surface of the machine tool, and a plurality of deep groove ball bearings are fixedly installed inside the front end support seat and the rear end support seat, and the deep groove ball bearings are in contact with the surface of the roller.

[0008] Further technical solution: the guide rail slider assembly and the slider mounting block are each provided with four groups on the surface of the rotating shaft cross, and the guide rail slider assembly and the slider mounting block are respectively provided around the rotating shaft cross.

[0009] Further technical solution: the front end support seat, the rear end support seat and the rotating shaft are all made of 45 steel, and the rotating shaft cross is made of Q355 steel.

[0010] Further technical solution: one end of the rotating shaft is rotatably connected to a needle bearing, a spiral groove is opened on the surface of the drag chain turntable, and the needle bearing is rotatably connected inside the spiral groove.

[0011] Further technical solution: corresponding pressure covers and retaining rings are fixedly installed on both sides of the drag chain turntable, and an action block is fixedly installed inside the drag chain turntable, and one end of the action block is fixedly connected to one end of the drag chain.

[0012] Further technical solution: A drag chain wiring trough guide plate is fixedly installed below the front end support seat and the rear end support seat, and the other end of the drag chain is fixedly connected to the inside of the drag chain wiring trough guide plate.

[0013] Further technical solution: the drag chain is a one-way drag chain, and a plurality of spacers and baffles are fixedly installed inside the drag chain.

[0014] Beneficial Effects

[0015] The utility model provides a rotary drag chain, which has the following beneficial effects compared with the prior art:

[0016] 1. Compared with traditional rotary distributors, electric slip rings and other equipment, the rotary drag chain structure with a purely mechanical design structure has a higher cost-effectiveness. With this purely mechanical design structure, non-standard customized design can be carried out according to the number of pipelines, reducing or even avoiding all unfavorable factors during use from the design end.

[0017] 2. By using a one-way drag chain, a rotation within the range of positive and negative 360 ​​degrees can be achieved. Secondly, when a large number of pipelines are passed through the inside of the drag chain, especially hydraulic hoses, cables, etc., the tension of these pipelines is relatively large. When the outer drag chain is in the process of being released, the inner winding drag chain will be released from the outside under the push of the pipeline tension. This will cause the outer drag chain to be unable to be fully released, the inner drag chain to be squeezed, resulting in damage to the drag chain and the inability to retract or release the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the drag chain turntable of the utility model.

[0020] Notes on the figure markings: 1. Front end support seat; 2. Roller; 3. Rotating shaft cross; 4. Rear end support seat; 5. Guide rail slider assembly; 6. Slider mounting block; 7. Rotating shaft; 8. Drag chain turntable; 9. Drag chain; 10. Drag chain wiring trough guide plate; 11. Needle roller bearing; 12. Retaining ring; 13. Action block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1-2 , provided by an embodiment of the utility model, a rotating drag chain comprises a front end support seat 1 and a rear end support seat 4, the front end support seat 1 and the rear end support seat 4 are fixed on the equipment and are used to connect the roller 2, the roller 2 is rotatably connected between the front end support seat 1 and the rear end support seat 4, the roller 2 is the C axis, one of the two rotating axes of the five-axis machine tool, and a rotating shaft cross 3 is fixedly installed on the surface of the rear end support seat 4, the rotating shaft cross 3 is equivalent to a fixed chassis and plays a supporting role, a guide rail slider assembly 5 is fixedly installed on the surface of the rear end support seat 4, a slider mounting block 6 is slidably connected inside the guide rail slider assembly 5, and the guide rail slider assembly 5 cooperates with the slider mounting block 6 to be used for the rotating shaft 7 to reciprocate around along the radial direction of the turntable during the retraction and release of the rotating drag chain 9, the slider mounting block 6 is rotatably connected inside the rotating shaft 7, the rear end support seat 4 is rotatably connected to the drag chain turntable 8 on the side, the drag chain turntable 8 is rotatably connected to the drag chain 9, the drag chain turntable 8 is rotated to retract and release the drag chain 9, and one end of the roller 2 is fixedly connected to the surface of the drag chain turntable 8.

[0024] Specifically, the front end support seat 1 and the rear end support seat 4 are both fixedly installed on the surface of the machine tool, and a plurality of deep groove ball bearings are fixedly installed inside the front end support seat 1 and the rear end support seat 4 , and the deep groove ball bearings are in contact with the surface of the roller 2 .

[0025] In the embodiment of the utility model, the deep groove ball bearing is used to connect the rotating roller 2 of the C-axis, ensuring good strength and rigidity.

[0026] Specifically, four groups of guide rail and slider assemblies 5 and slider mounting blocks 6 are arranged on the surface of the rotating shaft cross 3 , and the guide rail and slider assemblies 5 and slider mounting blocks 6 are respectively arranged around the rotating shaft cross 3 .

[0027] In the embodiment of the utility model, four sets of guide rail slider assemblies 5 are arranged around the rotating shaft cross 3, and each set has a slider mounting block 6 for fixing the rotating shaft around.

[0028] Specifically, the front end support seat 1, the rear end support seat 4 and the rotating shaft 7 are all made of 45 steel, and the rotating shaft cross 3 is made of Q355 steel.

[0029] In the embodiment of the utility model, 45 steel ensures the rigidity of the rotating shaft 7, and imposes strict requirements on its shape and position tolerance to ensure the matching accuracy with the slider mounting block 6 during the assembly process. The setting of Q355 steel ensures the strength and rigidity of the rotating shaft cross 3.

[0030] Specifically, one end of the rotating shaft 7 is rotatably connected to a needle bearing 11, a spiral groove is provided on the surface of the drag chain turntable 8, and the needle bearing 11 is rotatably connected inside the spiral groove.

[0031] In the embodiment of the utility model, the spiral grooves are all set with relatively high roughness requirements and tolerance requirements to ensure that the internal needle bearing 11 does not get stuck.

[0032] Specifically, corresponding pressure covers and retaining rings 12 are fixedly installed on both sides of the drag chain turntable 8, and an action block 13 is fixedly installed inside the drag chain turntable 8, and one end of the action block 13 is fixedly connected to one end of the drag chain 9.

[0033] In the embodiment of the utility model, corresponding pressure covers and retaining rings 12 are arranged on both sides of the drag chain turntable 8 to prevent the drag chain turntable 8 from being displaced during rotation, and the action block 13 is used to install the rotating drag chain 9.

[0034] Specifically, a drag chain wiring trough guide plate 10 is fixedly installed below the front support seat 1 and the rear support seat 4 , and the other end of the drag chain 9 is fixedly connected inside the drag chain wiring trough guide plate 10 .

[0035] In the embodiment of the utility model, the drag chain wiring trough guide plate 10 is provided so that the drag chain 9 can be guided when being retracted and released to avoid deviation.

[0036] Specifically, the drag chain 9 is a one-way drag chain, and a plurality of spacers and baffles are fixedly installed inside the drag chain 9 .

[0037] In the embodiment of the utility model, a large number of spacers and baffles are arranged inside the drag chain 9 for classified layout of different pipelines, so that the pipelines will not be stirred or squeezed during the rotation process.

[0038] When in use, the front end support seat 1 and the rear end support seat 4 are fixed on the equipment, the action block 13 is connected to one end of the drag chain 9, the roller 2 rotates, driving the drag chain turntable 8 to rotate, and when the drag chain 9 is retracted or released, the rotating shaft 7 always presses the inner drag chain 9. When the outer drag chain 9 is released or contracted, the inner drag chain 9 will not be released or contracted at the same time due to the tension of the pipeline, so that the horizontal machining center will not have the situation of drag chain getting stuck or pipeline mixing during the positive and negative 360-degree working process, and secondly, the internal pipeline can be recycled and released freely.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary drag chain, comprising a front support seat (1) and a rear support seat (4), characterized in that: A roller (2) is rotatably connected between the front end support seat (1) and the rear end support seat (4); a rotating shaft cross (3) is fixedly mounted on the surface of the rear end support seat (4); a guide rail slider assembly (5) is fixedly mounted on the surface of the rear end support seat (4); a slider mounting block (6) is slidably connected inside the guide rail slider assembly (5); a rotating shaft (7) is rotatably connected inside the slider mounting block (6); a drag chain turntable (8) is rotatably connected to the side of the rear end support seat (4); a drag chain turntable (9) is rotatably connected inside the drag chain turntable (8); and one end of the roller (2) is fixedly connected to the surface of the drag chain turntable (8).

2. The rotary drag chain according to claim 1, characterized in that: The front end support seat (1) and the rear end support seat (4) are both fixedly mounted on the surface of the machine tool, and a plurality of deep groove ball bearings are fixedly mounted inside the front end support seat (1) and the rear end support seat (4), and the deep groove ball bearings are in contact with the surface of the roller (2).

3. The rotary drag chain according to claim 1, characterized in that: The guide rail slider assembly (5) and the slider mounting block (6) are arranged in four groups on the surface of the rotating shaft cross (3), and the guide rail slider assembly (5) and the slider mounting block (6) are respectively arranged around the rotating shaft cross (3).

4. The rotary drag chain according to claim 1, characterized in that: The front end support seat (1), the rear end support seat (4) and the rotating shaft (7) are all made of 45 steel, and the rotating shaft cross (3) is made of Q355 steel.

5. The rotary drag chain according to claim 1, characterized in that: One end of the rotating shaft (7) is rotatably connected to a needle bearing (11), a spiral groove is provided on the surface of the drag chain turntable (8), and the needle bearing (11) is rotatably connected inside the spiral groove.

6. The rotary drag chain according to claim 1, characterized in that: Corresponding pressure covers and retaining rings (12) are fixedly installed on both sides of the drag chain turntable (8), and an action block (13) is fixedly installed inside the drag chain turntable (8), and one end of the action block (13) is fixedly connected to one end of the drag chain (9).

7. The rotary drag chain according to claim 1, characterized in that: A drag chain wiring trough guide plate (10) is fixedly installed below the front support seat (1) and the rear support seat (4), and the other end of the drag chain (9) is fixedly connected inside the drag chain wiring trough guide plate (10).

8. The rotary drag chain according to claim 1, characterized in that: The drag chain (9) is a one-way drag chain, and a plurality of spacers and baffles are fixedly installed inside the drag chain (9).

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