Hydraulic device of large five-axis linkage turn-milling combined machining center

By designing a hydraulic device including a base plate, a base, a mount, a drive assembly, a pump body, a guide rod and a clamping plate, the complex clamping structure and chip cleaning problems of five-axis linkage CNC machine tools are solved, and the controllable clamping and cooling functions are realized, which improves the machining accuracy and device life.

CN223251071UActive Publication Date: 2025-08-22YINCHUAN GREATWALL HYDRAULICS
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Patent Information

Application Number
CN202422382546.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-08-22
Estimated Expiration
2034-09-29

AI Technical Summary

Technical Problem

The hydraulic clamping device of existing five-axis linked CNC machine tools is complex in structure, making it difficult to effectively clean up chip waste, and the clamping force is difficult to accurately control, which may lead to damage to the workpiece or failure to clamp.

Method used

A hydraulic device including a base plate, a base, a mount, a drive assembly, a pump body, a guide rod, a clamp and a film pressure sensor is designed. The hydraulic oil drives the slider and a clamp to achieve controllable clamping through the pump body, and is equipped with a cooling system and a liquid return pipeline to achieve cooling and reflow of the hydraulic oil.

Benefits of technology

The clamping structure is simplified, the controllable clamping force of the workpiece is realized, and the workpiece is damaged is prevented, while the chip waste is effectively cleaned up, which improves the service life and processing accuracy of the device.

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Abstract

The utility model discloses a hydraulic device of a large-scale five-axis linkage turn-milling combined machining center, which comprises a bottom plate, a base and mounting seats, the base is fixedly arranged at the top of the bottom plate, the mounting seats are fixedly arranged at four corners of the top of the base, and a driving component is arranged in the base. By means of the simplified mechanical design, a workpiece can be rapidly clamped and fixed through the clamping plates, in addition, the clamping force generated by the clamping plates on the workpiece can be controlled within the range required by workers, and therefore by means of the device, workpiece clamping failure caused by too small clamping force is prevented, and the work efficiency is improved. And the workpiece is prevented from being damaged by too large clamping force. By means of the design of the cooling function, used hydraulic oil can be cooled, high temperature generated when the hydraulic oil is used is prevented from being transmitted to the pump body, and therefore the pump body is protected through the device, and the service life of the pump body is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to a hydraulic device for a large five-axis linkage turning and milling compound machining center. Background Art

[0002] The full name of CNC machine tools is digitally controlled machine tools. They are automated processing machines pre-installed with specific control program systems. They are machine tools with a relatively high degree of automation. They integrate advanced technologies such as mechanics, automation, and computers, and can perform more complex and precise processing. The five-axis linkage CNC machine tools among CNC machine tools can realize multi-directional rotation of tools and workpieces, thereby enabling more precise processing based on ordinary CNC machine tools, making great contributions to the fields of aviation, aerospace, and military.

[0003] The patent with announcement number "CN214322626U" is named: A hydraulic clamping device for a five-axis linkage CNC machine tool. The device in this public document controls the downward movement of the movable block through the use of a hydraulic rod, which in turn causes the connecting rod to drive the sliding block to slide toward the center of the clamping base, ultimately clamping the workpiece. This clamping mechanism has a complex structure, which increases the difficulty and cost of subsequent production of the entire device. In addition, the swarf waste generated during workpiece machining will enter the interior of the clamping base through the gap between the connecting rod and the clamping base, making it impossible for workers to clean the swarf waste inside the clamping base. Based on this, the utility model designs a hydraulic device for a large five-axis linkage turning and milling compound machining center to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic device for a large five-axis linkage turning and milling compound machining center to solve the problems raised by the above background technology.

[0005] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure.

[0006] Furthermore, the interior of the drainage hole is communicated with the interior of the cavity, the interior of the cavity is communicated with the interior of the connecting pipe, and a controller is fixedly provided on the outer wall of the base.

[0007] Furthermore, a baffle is fixedly provided at the lower end of the base, and the cross section of the baffle is rectangular when viewed from above.

[0008] Furthermore, mounting holes are integrally provided at the four corners inside the baffle, and a one-way valve is fixed inside the mounting hole.

[0009] Furthermore, a heat conducting plate made of copper is fixedly provided at the lower end of the base, and the cross section of the heat conducting plate is rectangular when viewed from above.

[0010] Furthermore, semiconductor refrigerators are fixed on the left and right sides of the base, a liquid inlet pipe is fixedly passed through the left side of the top of the base, a valve is rotatably passed through the outer wall of the liquid inlet pipe, the liquid inlet pipe passes through the partition, and a transparent scale is integrated into the base.

[0011] Furthermore, the connecting block sliding inside the guide rod is fixedly sleeved on the outside of the slide rod, and a spring is sleeved on the outside of the slide rod, and one end of the spring is fixedly connected to the connecting block, and the other end of the spring is fixedly connected to the guide rod.

[0012] Furthermore, a liquid return pipe is fixedly passed through the bottom of the connecting pipe, and the liquid return pipe passes through the base and the partition in sequence, and a solenoid valve is fixedly provided inside the liquid return pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The present invention can quickly clamp and fix the workpiece with the splint through a mechanically simplified design. In addition, the clamping force generated by the splint on the workpiece can be controlled within the range required by the staff. It can be seen that by using the device in this application, not only the failure of the workpiece clamping due to insufficient clamping force can be prevented, but also the damage to the workpiece caused by excessive clamping force can be prevented.

[0015] 2. The present invention can cool the hydraulic oil after use through the design of the cooling function to prevent the high temperature generated by the hydraulic oil during use from being transferred to the pump body. It can be seen that by using the device in this application, the pump body is protected, that is, the service life of the pump body is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a front perspective view of the hydraulic device of a large five-axis linkage turning and milling compound machining center of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the internal structure of the hydraulic device of a large five-axis linkage turning and milling compound machining center of the utility model;

[0019] Figure 3 A top-down perspective view of the interior of the base;

[0020] Figure 4 A three-dimensional diagram of the base, cavity, and drain hole;

[0021] Figure 5 It is a three-dimensional diagram of the partition, baffle and heat conduction plate.

[0022] In the accompanying drawings, the components represented by the respective reference numerals are listed as follows:

[0023] 1-base, 2-base, 3-mounting seat, 4-drive assembly, 401-partition, 402-pump body, 403-connector, 404-drain hole, 405-cavity, 406-guide rod, 407-slider, 408-slide bar, 409-clamp, 410-thin film pressure sensor, 411-connecting pipe, 5-controller, 6-baffle, 7-mounting hole, 8-check valve, 9-temperature guide plate, 10-semiconductor refrigerator, 11-liquid inlet pipe, 12-valve, 13-scale, 14-connecting block, 15-spring, 16-return pipe, 17-solenoid valve. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0025] like Figure 1 、 Figure 2 、 Figure 4As shown, the device includes a bottom plate 1, a base 2 and a mounting base 3. The base 2 is fixed to the top of the bottom plate 1, and the mounting base 3 is fixed to the four corners of the top of the base 2. A driving component 4 is provided inside the base 2. The driving component 4 includes a partition 401 fixed to the upper end of the base 2. A pump body 402 is fixed on the top of the partition 401, and the top of the pump body 402 is fixedly connected to the top of the base 2. A connector 403 fixed to the bottom of the pump body 402 passes through the partition 401. A drainage hole 404 is integrally provided on the top of the base 2. A cavity 405 is integrally provided at the top end of the base 2, a guide rod 406 is fixed inside the mounting seat 3, a rubber slider 407 is slidably connected inside the guide rod 406, and a slide rod 408 fixed on the inner side of the slider 407 slides through the guide rod 406, a splint 409 is fixed on the inner side of the slide rod 408, and a thin film pressure sensor 410 is fixed on the inner side of the splint 409, a connecting tube 411 is fixed on the outer side of the guide rod 406, and the end of the connecting tube 411 away from the guide rod 406 is fixed through the upper end of the base 2.

[0026] The interior of drainage hole 404 communicates with the interior of cavity 405, which in turn communicates with the interior of connecting pipe 411. A controller 5 is fixedly mounted on the outer wall of base 2. A worker places a workpiece on base 2 and turns on pump body 402. Pump body 402 pumps hydraulic oil from the lower end of base 2 through connector 403, drainage hole 404, cavity 405, and then through connecting pipe 411 into guide rod 406. The hydraulic oil discharged into guide rod 406 exerts a thrust on slider 407, which in turn causes slider 407 to drive slide bar 408 and clamping plate 409 to clamp the workpiece. Once the clamping force exerted by clamping plate 409 on the workpiece reaches the value set by film pressure sensor 410, pump body 402 stops operating, and the worker can proceed with subsequent milling of the workpiece. Example 2

[0027] like Figure 1 、 Figure 3 、 Figure 5As shown, a baffle 6 is fixed at the lower end of the base 2. The cross section of the baffle 6 is rectangular when viewed from above. Mounting holes 7 are integrally provided at the four corners of the baffle 6. A one-way valve 8 is fixed inside the mounting hole 7. A heat conducting plate 9 made of copper is fixed at the lower end of the base 2. The cross section of the heat conducting plate 9 is rectangular when viewed from above. Semiconductor refrigerators 10 are fixed on the left and right sides of the base 2. A liquid inlet pipe 11 is fixedly passed through the left side of the top of the base 2. A valve 12 is rotated through the outer wall of the liquid inlet pipe 11. The liquid inlet pipe 11 passes through the partition Plate 401, a transparent scale 13 is integrally provided inside the base 2, a connecting block 14 sliding inside the guide rod 406 is fixedly sleeved on the outside of the slide rod 408, a spring 15 is sleeved on the outside of the slide rod 408, and one end of the spring 15 is fixedly connected to the connecting block 14, and the other end of the spring 15 is fixedly connected to the guide rod 406, a return pipe 16 is fixedly passed through the bottom of the connecting pipe 411, and the return pipe 16 passes through the base 2 and the partition 401 in sequence, and an electromagnetic valve 17 is fixedly provided inside the return pipe 16.

[0028] According to the operation method in Example 1, when the slide rod 408 drives the slide rod 408 together with the clamping plate 409 to apply the extrusion force to the workpiece, the slide rod 408 drives the connecting block 14 to squeeze the spring 15 to deform. In addition, the staff can turn on the semiconductor refrigerator 10, and the semiconductor refrigerator 10 cools the heat conducting plate 9, thereby making the space between the heat conducting plate 9 and the baffle 6 in a cold state. When the workpiece is processed, the staff opens the solenoid valve 17 again, and the rebound force of the spring 15 makes the connecting block 14 drives the slide bar 408, along with the clamping plate 409 and the slider 407, to reset. That is, the slider 407 discharges the hydraulic oil inside the guide bar 406 from the connecting pipe 411 through the return pipe 16 into the position between the thermal conductive plate 9 and the baffle 6, thereby cooling the used hydraulic oil. The cooled hydraulic oil then flows back through the mounting hole 7 to the lower middle position inside the base 2. The one-way valve 8 prevents the hydraulic oil on the lower middle position inside the base 2 from entering the position between the thermal conductive plate 9 and the baffle 6 through the mounting hole 7. In addition, when the hydraulic oil level inside the base 2 falls below the value on the scale 13, the staff injects new hydraulic oil into the base 2 through the liquid inlet pipe 11. After the injection is completed, the valve 12 is closed.

Claims

1. A hydraulic device for a large five-axis linkage turning and milling composite machining center, comprising a base plate (1), a base (2) and a mounting seat (3), characterized in that: The base (2) is fixed on the top of the bottom plate (1), and the mounting seat (3) is fixed at the four corners of the top of the base (2). A driving assembly (4) is provided inside the base (2), and the driving assembly (4) includes a partition (401) fixed on the upper end of the base (2). A pump body (402) is fixed on the top of the partition (401), and the top of the pump body (402) is fixedly connected to the top end of the base (2). A connector (403) fixed on the bottom of the pump body (402) passes through the partition (401). A drainage hole (404) is integrally provided on the top end of the base (2). A cavity (405) is integrally provided at the top end, a guide rod (406) is fixedly provided inside the mounting seat (3), a slider (407) made of rubber material is slidably connected inside the guide rod (406), and a slide rod (408) fixed inside the slider (407) slides through the guide rod (406), a clamping plate (409) is fixed inside the slide rod (408), and a film pressure sensor (410) is fixed inside the clamping plate (409), and a connecting tube (411) is fixedly provided outside the guide rod (406), and the end of the connecting tube (411) away from the guide rod (406) is fixedly provided through the upper end of the base (2).

2. The hydraulic device of a large five-axis turning-milling composite machining center according to claim 1, characterized in that: The interior of the drainage hole (404) is connected to the interior of the cavity (405), and the interior of the cavity (405) is connected to the interior of the connecting pipe (411). A controller (5) is fixedly provided on the outer wall of the base (2).

3. The hydraulic device of a large five-axis turning-milling composite machining center according to claim 1, characterized in that: A baffle (6) is fixedly provided at the lower end of the interior of the base (2); the baffle (6) has a rectangular cross-section when viewed from above.

4. The hydraulic device of a large five-axis turning-milling composite machining center according to claim 3, characterized in that: Mounting holes (7) are integrally provided at the four corners inside the baffle (6), and a one-way valve (8) is fixed inside the mounting hole (7).

5. The hydraulic device of a large five-axis turning-milling composite machining center according to claim 1, characterized in that: A copper heat conducting plate (9) is fixedly provided at the lower end of the interior of the base (2); the cross section of the heat conducting plate (9) is rectangular in top view.

6. The hydraulic device of a large five-axis turning-milling compound machining center according to claim 1, characterized in that: Semiconductor refrigerators (10) are fixedly provided on the left and right sides of the base (2), a liquid inlet pipe (11) is fixedly passed through the left side of the top of the base (2), a valve (12) is rotatably passed through the outer wall of the liquid inlet pipe (11), the liquid inlet pipe (11) passes through the partition (401), and a transparent scale (13) is integrally provided inside the base (2).

7. The hydraulic device of a large five-axis turning-milling machining center according to claim 1, characterized in that: The connecting block (14) slidingly connected inside the guide rod (406) is fixedly sleeved on the outside of the slide rod (408), and the outside of the slide rod (408) is sleeved with a spring (15), and one end of the spring (15) is fixedly connected to the connecting block (14), and the other end of the spring (15) is fixedly connected to the guide rod (406).

8. The hydraulic device of a large five-axis turning-milling machining center according to claim 1, characterized in that: A liquid return pipe (16) is fixedly passed through the bottom of the connecting pipe (411), and the liquid return pipe (16) passes through the base (2) and the partition (401) in sequence, and a solenoid valve (17) is fixedly provided inside the liquid return pipe (16).

Citation Information

Patent Citations

  • Hydraulic clamping device of five-axis linkage numerical control machine tool

    CN214322626U