Five-axis machining tool capable of preventing C-axis pipe winding

Abstract

The invention discloses a five-axis machining machine tool for preventing a C axis from winding a pipe, and relates to the technical field of machining machine tools. The five-axis machining machine tool for preventing the C axis from winding the pipe comprises a rotary table rotationally arranged on an operation table, a pneumatic sliding ring is connected to the rotary table and comprises an inner ring and an outer ring, one end of the inner ring is connected with the rotary table, and the other end of the inner ring is connected with a pneumatic clamp; an air outlet pipe is arranged on the inner ring and connected with an air pipe of the pneumatic clamp, the outer ring is connected with an external air source through an air inlet pipe, and a clamping assembly is further arranged on the operation table and used for fixing the outer ring. According to the five-axis machining machine tool capable of preventing the C-axis pipe from being wound, the rotary disc and the pneumatic clamp are connected through the inner ring of the pneumatic sliding ring, so that the pneumatic clamp can synchronously rotate along with the rotary disc, meanwhile, the outer ring is fixed through the clamping assembly, the problem that an air pipe is wound when the five-axis machine tool conducts C-axis machining is solved, the production efficiency is improved, and the equipment failure rate is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of machining machine tools, and in particular relates to a five-axis machining machine tool capable of preventing a C-axis from winding around a pipe. Background Art

[0002] Five-axis machining centers are CNC machines that can move in five independent axes and are widely used in precision manufacturing and the processing of complex parts. Compared with traditional three-axis machining centers (X-axis, Y-axis, and Z-axis), five-axis machining centers have higher processing capabilities and flexibility, and are particularly suitable for complex geometric shapes, curved surfaces, molds, aerospace, and medical devices. Five-axis machining centers generally use pneumatic fixtures to clamp workpieces, but many workpieces need to rotate the C-axis in the same direction for several turns during the machining process, which can easily cause the air pipe connected to the pneumatic fixture to get tangled, hang on the product, interfere with the tool machining path, and cause the tool to mill the product or parts. Or the air pipe connection may fall off when reaching the critical torque point, causing the vacuum of the fixture to lose balance, and the workpiece to fall off the fixture during tool machining, and other unpredictable risks. Summary of the invention

[0003] The purpose of the present invention is to provide a five-axis machining center with a simple structure and reasonable design to prevent C-axis tube entanglement in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions: A five-axis machining tool for preventing C-axis from being entangled with a pipe, comprising a base, a Y-axis slide rail and an X-axis slide rail are arranged on the base, a trunnion is slidably arranged on the X-axis slide rail, a column is further arranged on the base, a Z-axis slide rail is arranged on the column, and a tool assembly is slidably arranged on the Z-axis slide rail; The ear shaft includes an operating table, a turntable is rotatably arranged on the operating table, a pneumatic slip ring is connected to the turntable, the pneumatic slip ring includes an inner ring and an outer ring, one end of the inner ring is connected to the turntable, and the other end is connected to a pneumatic clamp, an air outlet pipe is arranged on the inner ring, the air outlet pipe is connected to the air pipe of the pneumatic clamp, the outer ring is connected to an external air source via an air inlet pipe, and a clamping assembly is also arranged on the operating table, and the clamping assembly is used to fix the outer ring.

[0005] Furthermore, the clamping assembly includes two groups of clamping parts, which are arranged in mirror symmetry with respect to the axis of the turntable. The clamping parts are connected to a driving assembly on one side away from the turntable, and the driving member is used to drive the clamping parts to clamp the outer ring.

[0006] Furthermore, a connecting piece is provided on the side of the turntable away from the pneumatic slip ring, the connecting piece is in a cylindrical structure, a plurality of groups of protrusions are axially arranged inside the connecting piece, a limiting piece is slidably arranged inside the connecting piece, a limiting groove matched with the protrusion is provided on the limiting piece, the limiting piece is connected to the connecting piece via a first spring in the moving direction, and the end of the limiting piece away from the turntable is connected to the driving end of the first driving device.

[0007] Furthermore, a groove matched with the turntable is formed on the operating table, and the limiting member is arranged in a second groove.

[0008] Furthermore, a first cavity is opened inside the operating table, the first cavity is connected to the first groove, a push rod is horizontally slidably arranged in the first cavity, the push rod is arranged on an inclined surface at one end close to the first groove, and the push rod is connected to the inner wall of the first cavity through a second spring at one end away from the first groove, and the clamping assembly is started by squeezing the push rod through the turntable.

[0009] Furthermore, a control box is provided on the operating table, a vertical rod is rotatably provided in the control box, a first gear is provided at one end of the vertical rod and is arranged in the first cavity, a first rack meshing with the first gear is provided on the push rod, and the vertical rod is driven to rotate by the movement of the push rod; A second gear is disposed at one end of the vertical rod away from the first gear. The second gear is connected to a movable rod via a second rack. An end of the movable rod close to the rotating disk is connected to the clamping portion.

[0010] Furthermore, an anti-slip layer is provided on a side of the clamping portion close to the outer ring.

[0011] Furthermore, a pressing portion is sleeved on one end of the vertical rod away from the first gear, and the pressing portion is slidably connected to the vertical rod through a third spring. The second gear is arranged on one end of the pressing portion close to the first gear, and one end of the pressing portion is rotatably connected to the control box based on the second gear and extends out of the control box.

[0012] Furthermore, the movable rod is connected to the inner wall of the control cavity via an elastic rope in the moving direction.

[0013] Furthermore, a sliding groove is provided at one end of the vertical rod close to the pressing portion, and a sliding block is correspondingly provided in the pressing portion.

[0014] The present invention has at least the following beneficial effects: the present invention connects the turntable and the pneumatic clamp by utilizing the inner ring of the pneumatic slip ring, so that the pneumatic clamp can rotate synchronously with the turntable. At the same time, the outer ring fixes it through the clamping assembly to prevent the air pipe from getting entangled when the five-axis machine tool is performing C-axis processing, thereby improving production efficiency and reducing equipment failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the trunnion structure of the present invention; Figure 3 It is a schematic diagram of the structure of the turntable connecting member of the present invention; Figure 4 is a cross-sectional view of an operating table of the present invention; Figure 5 It is the internal structure diagram of the control box of the present invention; Figure 6 It is a schematic diagram of the pressing portion structure of the present invention.

[0016] In the figure: 1. base; 2. Y-axis slide rail; 3. X-axis slide rail; 4. ear shaft; 401. operating table; 402. turntable; 403. connecting piece; 404. first spring; 405. limit piece; 407. limit groove; 5. column; 6. Z-axis slide rail; 7. tool assembly; 8. pneumatic slip ring; 801. air inlet pipe; 802. air outlet pipe; 803. inner ring; 804. outer ring; 9. pneumatic clamp; 10. first driving device; 11. clamping part; 13. first groove; 14. second groove; 15. first cavity; 16. push rod; 17. second spring; 18. control box; 19. vertical rod; 20. first gear; 21. first rack; 22. second rack; 23. movable rod; 24. second gear; 25. pressing part; 26. third spring; 27. elastic rope. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] like Figure 1 , Figure 2 As shown, a five-axis machining tool for preventing C-axis tube entanglement comprises a base 1, on which a Y-axis slide rail 2 and an X-axis slide rail 3 are arranged, on which a trunnion 4 is slidably arranged, and on which a column 5 is further arranged, on which a Z-axis slide rail 6 is arranged, and on which a tool assembly 7 is slidably arranged; The ear shaft 4 includes an operating table 401, on which a turntable 402 is rotatably arranged, and a pneumatic slip ring 8 is connected to the turntable 402. The pneumatic slip ring 8 includes an inner ring 803 and an outer ring 804. One end of the inner ring 803 is connected to the turntable 402, and the other end is connected to a pneumatic clamp 9. An air outlet pipe 802 is arranged on the inner ring 803, and the air outlet pipe 802 is connected to the air pipe of the pneumatic clamp 9. The outer ring 804 is connected to an external air source via an air inlet pipe 801. A clamping assembly is also arranged on the operating table 401, and the clamping assembly is used to fix the outer ring 804.

[0019] In actual use, the outer ring 804 is fixed by the clamping assembly. When the turntable 402 rotates, the inner ring 803 is driven to rotate, and the inner ring 803 drives the pneumatic clamp 9 to rotate, that is, the inner ring 803 rotates synchronously with the pneumatic clamp 9, which can avoid problems such as entanglement of the air pipe during the rotation of the pneumatic clamp 9, thereby improving the processing efficiency.

[0020] In a specific implementation, the clamping assembly includes two groups of clamping parts 11, which are arranged in mirror symmetry with respect to the axis of the turntable 402. The clamping part 11 is connected to a driving assembly on the side away from the turntable 402, and the driving part is used to drive the clamping part 11 to clamp the outer ring 804.

[0021] During actual use, the driving member drives the clamping part 11 to move toward the outer ring 804, so that the two groups of clamping parts 11 fix the outer ring 804. When the inner ring 803 rotates, it can ensure that the outer ring 804 does not rotate, thereby avoiding the entanglement of the air intake pipe 801 connected to the external air source. The driving member can be an electric telescopic rod, which is arranged on the operating table 401. The driving end of the electric telescopic rod is connected to the clamping part 11, and the clamping of the outer ring 804 by the clamping part 11 is controlled by controlling the electric telescopic rod.

[0022] In a specific implementation manner, Figure 3 As shown, a connecting member 403 is provided on the side of the turntable 402 away from the pneumatic slip ring 8, the connecting member 403 is in a cylindrical structure, a plurality of groups of protrusions are axially arranged inside the connecting member 403, a limiting member 405 is slidably arranged inside the connecting member 403, a limiting groove 407 adapted to the protrusion is opened on the limiting member 405, the limiting member 405 is connected to the connecting member 403 in the moving direction through a first spring 404, and the end of the limiting member 405 away from the turntable 402 is connected to the driving end of the first driving device 10.

[0023] In a specific implementation manner, Figure 4 , Figure 5As shown, a groove matched with the turntable 402 is formed on the operating table 401 , and the limiting member 405 is arranged in the second groove 14 .

[0024] Under normal circumstances, that is, when nothing is placed on the turntable 402, including the pneumatic slip ring 8 or the pneumatic clamp 9, under the elastic force of the first spring 404, the turntable 402 is located directly above the first groove 13. When the pneumatic slip ring 8 is placed on the turntable 402, the first spring 404 is compressed, so that the turntable 402 is in the first groove 13.

[0025] In a specific embodiment, a first cavity 15 is opened inside the operating table 401, and the first cavity 15 is connected to the first groove 13. A push rod 16 is horizontally slidably arranged in the first cavity 15. The push rod 16 is arranged on an inclined surface at one end close to the first groove 13, and the push rod 16 is connected to the inner wall of the first cavity 15 at one end away from the first groove 13 through a second spring 17. The push rod 16 is squeezed by the turntable 402 to start the clamping assembly.

[0026] It should be noted that a distance sensor can be provided at the end of the push rod 16 away from the first groove 13. When the push rod 16 is completely squeezed into the first cavity 15, the distance sensor transmits a signal to the control module, which controls the operation of the clamping assembly.

[0027] In a specific implementation manner, a control box 18 is provided on the operating table 401, a vertical rod 19 is rotatably provided in the control box 18, a first gear 20 is provided at one end of the vertical rod 19 and is provided in the first cavity 15, a first rack 21 meshing with the first gear 20 is provided on the push rod 16, and the vertical rod 19 is driven to rotate by the movement of the push rod 16; The end of the vertical rod 19 away from the first gear 20 is provided with a second gear 24 , and the second gear 24 is connected to a movable rod 23 through a second rack 22 . The movable rod 23 is connected to the clamping portion 11 at one end close to the rotating disk 402 .

[0028] During actual use, the pneumatic slip ring 8 is placed on the turntable 402. Under the action of gravity, the first spring 404 is compressed, the turntable 402 contacts the inclined surface of the push rod 16, and squeezes it into the first cavity 15. During the movement, the first rack 21 engages with the first gear 20, driving the vertical rod 19 to rotate, so that the second gear 24 engages with the second rack 22 to drive the movable rod 23 to move toward the side close to the turntable 402, thereby realizing the clamping of the outer ring 804 by the clamping part 11.

[0029] In a specific implementation manner, a non-slip layer is provided on a side of the clamping portion 11 close to the outer ring 804 .

[0030] In a specific implementation manner, Figure 6 As shown, a pressing portion 25 is sleeved on the end of the vertical rod 19 away from the first gear 20, and the pressing portion 25 is slidably connected to the vertical rod 19 through a third spring 26. The second gear 24 is arranged on the pressing portion 25 at one end close to the first gear 20, and the pressing portion 25 is rotatably connected to the control box 18 at one end of the second gear 24 and extends out of the control box 18.

[0031] In a specific embodiment, the movable rod 23 is connected to the inner wall of the control cavity via an elastic rope 27 in the moving direction.

[0032] When the pneumatic slip ring 8 needs to be removed, the pressing part 25 is pressed so that the second gear 24 is no longer meshed with the second rack 22. At this time, the elastic rope 27 pulls the movable rod 23, so that the movable rod 23 drives the clamping part 11 to move toward the inside of the control box 18, so that the clamping part 11 releases the clamping of the outer ring 804. After the pneumatic slip ring 8 is removed, the pressing part 25 is released. Under the elastic force of the third spring 26, the pressing part 25 is reset, that is, the second gear 24 is reset, so that the second gear 24 is re-engaged with the second rack 22, so as to clamp the outer ring 804 when it is used next time.

[0033] It should be noted that a limit assembly should be provided between the pressing portion 25 and the vertical rod 19 to ensure that the two can rotate synchronously.

[0034] In a specific implementation manner, a sliding groove is provided at one end of the vertical rod 19 close to the pressing portion 25 , and a sliding block is correspondingly provided in the pressing portion 25 .

[0035] Principle of use: First, place the pneumatic slip ring 8 on the turntable 402, and fix it on the turntable 402 through a fixing structure. Connect the air inlet pipe 801 to the external air source, place the pneumatic clamp 9 on the pneumatic slip ring 8, and similarly, fix it on the pneumatic slip ring 8 through a fixing structure, and connect the air outlet pipe 802 to the air pipe of the pneumatic clamp 9. Under the action of gravity, the first spring 404 is compressed, the turntable 402 contacts the inclined surface of the push rod 16, and squeezes it into the first cavity 15. During the movement, the first rack 21 engages with the first gear 20, driving the vertical rod 19 to rotate, so that the second gear 24 engages with the second rack 22 to drive the movable rod 23 toward Move closer to one side of the turntable 402 to achieve the clamping of the outer ring 804 by the clamping part 11; when the pneumatic slip ring 8 needs to be removed, the pressing part 25 is pressed so that the second gear 24 and the second rack 22 are no longer meshed. At this time, the elastic rope 27 pulls the movable rod 23, so that the movable rod 23 drives the clamping part 11 to move toward the inside of the control box 18, so that the clamping part 11 releases the clamping of the outer ring 804. After the pneumatic slip ring 8 is removed, the pressing part 25 is released, and under the elastic force of the third spring 26, the pressing part 25 is reset, that is, the second gear 24 is reset, so that the second gear 24 is re-engaged with the second rack 22, so as to clamp the outer ring 804 when it is used next time.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A five-axis machining machine tool for preventing C-axis tube entanglement, characterized in that: The invention comprises a base (1), wherein a Y-axis slide rail (2) and an X-axis slide rail (3) are arranged on the base (1), an ear shaft (4) is slidably arranged on the X-axis slide rail (3), a column (5) is further arranged on the base (1), a Z-axis slide rail (6) is arranged on the column (5), and a tool assembly (7) is slidably arranged on the Z-axis slide rail (6); The ear shaft (4) comprises an operating table (401), a turntable (402) is rotatably arranged on the operating table (401), a pneumatic slip ring (8) is connected to the turntable (402), the pneumatic slip ring (8) comprises an inner ring (803) and an outer ring (804), one end of the inner ring (803) is connected to the turntable (402), and the other end is connected to the pneumatic clamp (9), an air outlet pipe (802) is arranged on the inner ring (803), the air outlet pipe (802) is connected to the air pipe of the pneumatic clamp (9), the outer ring (804) is connected to an external air source via an air inlet pipe (801), and a clamping assembly is also arranged on the operating table (401), the clamping assembly is used to fix the outer ring (804).

2. A five-axis machining center for preventing C-axis tube entanglement according to claim 1, characterized in that: The clamping assembly comprises two groups of clamping parts (11), the two groups of clamping parts (11) are arranged in mirror symmetry with respect to the axis of the turntable (402), and a driving assembly is connected to the side of the clamping part (11) away from the turntable (402), and the driving part is used to drive the clamping part (11) to clamp the outer ring (804).

3. A five-axis machining center for preventing C-axis tube entanglement according to claim 2, characterized in that: A connecting piece (403) is arranged on the side of the rotating disk (402) away from the pneumatic slip ring (8), the connecting piece (403) is in a cylindrical structure, a plurality of groups of protrusions are arranged axially inside the connecting piece (403), a limiting piece (405) is slidably arranged inside the connecting piece (403), a limiting groove (407) adapted to the protrusion is provided on the limiting piece (405), the limiting piece (405) is connected to the connecting piece (403) in the moving direction via a first spring (404), and the end of the limiting piece (405) away from the rotating disk (402) is connected to the driving end of the first driving device (10).

4. A five-axis machining tool for preventing C-axis tube entanglement according to claim 3, characterized in that: The operating table (401) is provided with a groove matched with the rotating disk (402), and the limiting member (405) is arranged in the second groove (14).

5. A five-axis machining center for preventing C-axis tube entanglement according to claim 4, characterized in that: A first cavity (15) is provided inside the operating table (401), the first cavity (15) being in communication with the first groove (13), a push rod (16) being horizontally slidably arranged inside the first cavity (15), the push rod (16) being arranged with an inclined surface at one end close to the first groove (13), the push rod (16) being connected to the inner wall of the first cavity (15) at one end away from the first groove (13) via a second spring (17), and the clamping assembly is started by squeezing the push rod (16) via the turntable (402).

6. A five-axis machining center for preventing C-axis tube entanglement according to claim 5, characterized in that: The operating table (401) is provided with a control box (18), a vertical rod (19) is rotatably provided in the control box (18), a first gear (20) is provided at one end of the vertical rod (19) and is arranged in the first cavity (15), and a first rack (21) meshing with the first gear (20) is provided on the push rod (16), and the vertical rod (19) is driven to rotate by the movement of the push rod (16); A second gear (24) is provided at one end of the vertical rod (19) away from the first gear (20); the second gear (24) is connected to a movable rod (23) via a second rack (22); and the movable rod (23) is connected to the clamping portion (11) at one end close to the rotating disk (402).

7. A five-axis machining center for preventing C-axis tube entanglement according to any one of claims 2 to 6, characterized in that: A non-slip layer is provided on a side of the clamping portion (11) close to the outer ring (804).

8. The five-axis machining center for preventing C-axis tube entanglement according to claim 6, characterized in that: A pressing portion (25) is sleeved on one end of the vertical rod (19) away from the first gear (20); the pressing portion (25) is slidably connected to the vertical rod (19) via a third spring (26); the second gear (24) is arranged at one end of the pressing portion (25) close to the first gear (20); one end of the pressing portion (25) is rotatably connected to the control box (18) and extends out of the control box (18) in accordance with the second gear (24).

9. A five-axis machining center for preventing C-axis tube entanglement according to claim 8, characterized in that: The movable rod (23) is connected to the inner wall of the control chamber via an elastic rope (27) in the moving direction.

10. A five-axis machining center for preventing C-axis tube entanglement according to claim 9, characterized in that: A sliding groove is provided at one end of the vertical rod (19) close to the pressing portion (25), and a sliding block is correspondingly provided in the pressing portion (25).

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