Vertical-horizontal conversion swing head structure and machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a vertical-horizontal conversion swing head structure and a machine tool. The vertical-horizontal conversion swing head structure comprises a shell, a first mounting part and a second mounting part which are oppositely arranged, and a mounting cavity is formed in the first mounting part and / or the second mounting part; the main shaft assembly is rotationally connected between the first mounting part and the second mounting part; the driving supporting assembly is at least partially arranged in the mounting cavity and is in transmission connection with the main shaft assembly; the driving supporting assembly comprises a plurality of transmission structures; the liquid injection pipe set communicates with the mounting cavity, and the lubricating liquid is suitable for being injected into the mounting cavity through the liquid injection pipe set and infiltrating the transmission structure; and the liquid discharging pipe set communicates with the mounting cavity, and the lubricating liquid infiltrating the transmission structure is suitable for being discharged through the liquid discharging pipe set. According to the utility model, lubricating liquid can be quickly replaced by using the liquid injection pipe group and the liquid discharge pipe group under the condition that the shell does not need to be disassembled, so that the operation steps of replacing the lubricating liquid are simplified, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a vertical-horizontal conversion swing head structure and a machine tool. Background Art

[0002] With the continuous development of the CNC machine tool industry, the demand for the diversity of CNC machine tool functions is also increasing. Traditional machine tools that can only perform horizontal or vertical processing are obviously unable to meet people's needs. For this reason, CNC machine tools with vertical and horizontal conversion swing head structures came into being.

[0003] The vertical-horizontal conversion swing head structure includes a fixed part and a rotating part, wherein the rotating part is provided with an electric spindle, which is driven to rotate by a series of driving devices to adjust the position of the electric spindle, providing more optional processing methods for CNC machine tools. In order to prevent impurities from entering the vertical-horizontal conversion swing head structure, it is usually set as a highly closed structure. The transmission structure inside the driving device in the vertical-horizontal conversion swing head structure will cause poor operation due to long-term use, and the internal lubricating fluid needs to be replaced before it can continue to be used. The current conventional operation method for replacing the lubricating fluid is to disassemble the vertical-horizontal conversion swing head structure to discharge the lubricating fluid, inject new lubricating fluid into the transmission structure, and then reassemble the vertical-horizontal conversion swing head structure. This operation method is cumbersome and inefficient, which brings many inconveniences to the operation and maintenance of the vertical-horizontal conversion swing head structure. Utility Model Content

[0004] In view of this, the utility model provides a vertical-horizontal conversion swing head structure to solve the problem that the current operation method of replacing the lubricating fluid in the vertical-horizontal conversion swing head structure is complicated and inefficient.

[0005] At the same time, the utility model provides a machine tool to solve the problem that the current operation method of replacing the lubricating fluid in the vertical-horizontal conversion swing head structure is complicated and inefficient.

[0006] In the first aspect, the utility model provides a vertical-horizontal conversion swing head structure, comprising: a shell, having a first mounting portion and a second mounting portion arranged opposite to each other, a mounting cavity being formed inside the first mounting portion and / or the second mounting portion; a spindle assembly, rotatably connected between the first mounting portion and the second mounting portion; a drive support assembly, at least partially arranged in the mounting cavity, and transmission-connected to the spindle assembly; the drive support assembly comprises a plurality of transmission structures, and the transmission structures are used for mechanical transmission of various components in the drive support assembly; an injection tube group, connected to the mounting cavity, and lubricating liquid is suitable for being injected into the mounting cavity by the injection tube group and infiltrating the transmission structure; a discharge tube group, connected to the mounting cavity, and lubricating liquid infiltrating the transmission structure is suitable for being discharged by the discharge tube group.

[0007] Beneficial effects: The utility model provides a vertical-horizontal conversion swing head structure, in which the spindle assembly connected between the first mounting part and the second mounting part in the shell is driven by the driving support assembly in the mounting cavity, so that the spindle assembly rotates to adjust the position of the electric spindle; lubricating liquid is injected into the mounting cavity of the shell through the injection pipe group to provide lubrication for the transmission structure in the driving support assembly, and the excess lubricating liquid in the mounting cavity of the shell after the transmission structure is infiltrated is discharged through the drainage pipe group, and the lubricating liquid in the mounting cavity can be quickly replaced without disassembling the shell, so as to simplify the operating steps of replacing the lubricating liquid and improve the replacement efficiency, thereby solving the problem of cumbersome steps and low efficiency in the current operation method of replacing the lubricating liquid in the vertical-horizontal conversion swing head structure.

[0008] In an optional embodiment, the injection tube group is formed by a through hole passing through the first mounting part and / or the second mounting part; and / or the drainage tube group is formed by a through hole passing through the first mounting part and / or the second mounting part.

[0009] Beneficial effect: the injection pipe group and the discharge pipe group are arranged to be formed by through holes penetrating the first mounting part and the second mounting part, and the shell's own structure is used to modify the lubricating liquid inlet and outlet pipelines to improve the compactness of the vertical-horizontal conversion swing head structure.

[0010] In an optional embodiment, the end of the injection tube group connected to the outside is provided with a liquid inlet, and the end of the discharge tube group connected to the outside is provided with a liquid outlet, and the liquid inlet is located above the liquid outlet.

[0011] Beneficial effect: The liquid inlet of the injection tube group is arranged above the liquid outlet of the discharge tube group, so as to accelerate the discharge speed of the lubricating liquid by utilizing the effect of gravity, and further improve the replacement efficiency of the lubricating liquid.

[0012] In an optional embodiment, the vertical-horizontal conversion swing head structure further includes a plurality of blocking structures, and the blocking structures are arranged at the liquid inlet and / or the liquid outlet.

[0013] Beneficial effect: By setting a sealing structure at the liquid inlet and outlet, the lubricant in the installation cavity can be prevented from flowing out when the transmission structure of the drive support assembly is running. At the same time, the sealing performance of the vertical-horizontal conversion swing head structure is improved, and impurities are prevented from entering the installation cavity through the injection pipe group and the discharge pipe group.

[0014] In an optional embodiment, a first mounting cavity is formed inside the first mounting portion, and the drive support assembly includes a drive assembly at least partially arranged in the first mounting cavity; the drive assembly includes: a drive motor, whose output end is provided with a first gear; a cam structure, one end of which is provided with a second gear meshing with the first gear, and a side gear is provided on the side wall; a drive core shaft is fixedly connected to the main shaft assembly, and a plurality of rollers are arranged at radial intervals along the drive core shaft, and the rollers are meshed with the side gears; the injection pipe group includes a first injection pipeline and a second injection pipeline, the first injection pipeline extends toward the first gear and / or the second gear, and the second injection pipeline extends toward the rollers and / or the side gears; the drainage pipe group includes a first drainage pipeline and a second drainage pipeline, the first drainage pipeline extends toward the first gear and / or the second gear, and the second drainage pipeline extends toward the rollers and / or the side gears.

[0015] Beneficial effects: Lubricating liquid is injected through the first injection pipeline to provide lubrication for the transmission structure of the first gear and the second gear, and lubricating liquid is injected through the second injection pipeline to provide lubrication for the transmission structure of the roller and the side gear; excess lubricating liquid after wetting the transmission structure of the first gear and the second gear is discharged through the first drainage pipeline, and excess lubricating liquid after wetting the transmission structure of the roller and the side gear is discharged through the second drainage pipeline, and the lubricating liquid in the first installation cavity can be quickly replaced without disassembling the shell.

[0016] In an optional embodiment, a hydraulic brake assembly is disposed in the first mounting cavity, and the hydraulic brake assembly is disposed between the inner wall of the first mounting portion and the outer wall of the driving spindle, and is suitable for preventing the main shaft assembly from rotating; a sealing structure is disposed between the hydraulic brake assembly and the inner wall of the first mounting portion; and / or a sealing structure is disposed between the hydraulic brake assembly and the outer wall of the driving spindle.

[0017] Beneficial effect: By providing a sealing structure, the lubricating fluid and the hydraulic oil in the hydraulic brake assembly are separated.

[0018] In an optional embodiment, a second mounting cavity is formed inside the second mounting portion, and the drive support assembly includes a support assembly arranged in the second mounting cavity; the support assembly includes: a support core shaft, fixedly connected to the main shaft assembly; a bearing chamber, installed on the inner wall of the second mounting portion, the inner wall of the bearing chamber is provided with a support bearing, and the support bearing is connected to the outer peripheral side of the support core shaft; the injection pipe group also includes a third injection pipeline, and the third injection pipeline is extended toward the support bearing; the drainage pipe group also includes a third drainage pipeline, and the third drainage pipeline is extended toward the support bearing.

[0019] Beneficial effect: Lubricating liquid is injected through the third liquid injection pipeline to provide lubrication for the support bearing transmission structure; excess lubricating liquid after wetting the support bearing transmission structure is discharged through the third liquid discharge pipeline, and the lubricating liquid in the second installation cavity can be quickly replaced without disassembling the shell.

[0020] In an optional embodiment, the support assembly further includes a support pressure plate, which is connected to a side of the support core shaft away from the main shaft assembly; a limiting rotor is provided on the side of the support pressure plate away from the support core shaft, and a limiting structure corresponding to the limiting rotor is provided on the inner wall of the second mounting portion, and the limiting rotor is suitable for counteracting the limiting structure to limit the rotation position of the main shaft assembly.

[0021] Beneficial effects: The supporting pressure plate is arranged on the end face of the supporting core shaft away from the main shaft assembly, which can press the supporting core shaft to improve the compactness of the vertical-horizontal conversion swing head structure; the limiting rotor can limit the rotation position of the main shaft assembly to ensure that the main shaft assembly rotates within the stroke range, and the limiting rotor is integrated on the supporting pressure plate, reducing the size specifications of the internal components of the vertical-horizontal conversion swing head structure.

[0022] In an optional embodiment, the vertical-horizontal conversion swing head structure further includes an adjusting screw provided through the second mounting portion, wherein the screw-in end of the adjusting screw is adapted to abut against the bearing chamber to adjust the installation position of the bearing chamber.

[0023] Beneficial effect: The coaxiality of the support bearing and the support mandrel can be adjusted by using the adjusting screw, thereby improving the smoothness and stability of the rotation of the main shaft assembly.

[0024] In a second aspect, the utility model further provides a machine tool, comprising the vertical-horizontal conversion swing head structure described in any of the above-mentioned embodiments.

[0025] Because the machine tool includes a vertical-horizontal conversion swing head structure, it has the same effect as the vertical-horizontal conversion swing head structure and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A structural schematic diagram of a vertical-horizontal conversion swing head structure provided by the utility model;

[0028] Figure 2 A cross-sectional view of a vertical-horizontal conversion swing head structure provided by the utility model;

[0029] Figure 3 A schematic diagram of the structure of the housing provided by the utility model;

[0030] Figure 4 A structural schematic diagram of the housing provided by the utility model from another perspective;

[0031] Figure 5 for Figure 4 Sectional view along AA direction;

[0032] Figure 6 A structural schematic diagram of the housing provided by the utility model from another perspective;

[0033] Figure 7 for Figure 6 Cross-sectional view along the BB direction;

[0034] Figure 8 A schematic diagram of the structure of the main shaft assembly provided by the utility model;

[0035] Fig. 9 A schematic diagram of the internal structure of the main shaft assembly provided by the utility model;

[0036] Fig.10 Another cross-sectional view of a vertical-horizontal conversion swing head structure provided by the utility model;

[0037] Fig.11 for Fig.10 A partial enlarged schematic diagram of the M in the middle;

[0038] Fig.12 This is a structural schematic diagram of the support pressing plate provided by the utility model.

[0039] Description of reference numerals:

[0040] 1. Shell; 101. First mounting portion; 1011. Mounting groove; 1012. Mounting cover; 1013. Threading hole; 102. Second mounting portion;

[0041] 2. Spindle assembly; 201. Spindle housing; 2011. Electric spindle; 2012. Start of hole; 2013. End of hole; 2014. Soft material; 202. Side shield; 203. Top shield;

[0042] 3. Liquid injection pipe group; 30. Liquid inlet; 301. First liquid injection pipeline; 302. Second liquid injection pipeline;

[0043] 4. Liquid discharge pipe group; 40. Liquid outlet; 401. First liquid discharge pipeline; 402. Second liquid discharge pipeline;

[0044] 5. Driving assembly; 501. Driving motor; 5011. First gear; 502. Cam structure; 5021. Second gear; 5022. Side gear; 503. Driving spindle; 5031. Roller; 504. Motor mounting plate; 505. Driving bearing; 506. Bearing seat; 507. Bearing baffle; 508. Turntable bearing; 509. Bearing support ring;

[0045] 6. Hydraulic brake assembly; 601. Cylinder; 602. Piston; 603. Spring; 604. Brake pressure plate; 605. First brake pad; 606. Second brake pad;

[0046] 7. Sealing structure;

[0047] 8. Support assembly; 801. Support mandrel; 802. Bearing chamber; 803. Support bearing; 804. Support pressure plate; 8041. Limiting rotor;

[0048] 9. Adjusting screw;

[0049] 10. Encoder. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0051] Combine the following Figure 1-Figure 12 , describing an embodiment of the utility model.

[0052] According to an embodiment of the present utility model, on the one hand, a vertical-horizontal conversion swing head structure is provided, such as Figure 1-Figure 7 As shown, it includes: a housing 1, a spindle assembly 2, a drive support assembly, a transmission structure, a liquid injection tube group 3 and a liquid discharge tube group 4.

[0053] The shell 1 has a first mounting portion 101 and a second mounting portion 102 that are arranged opposite to each other, and an mounting cavity is formed inside the first mounting portion 101 and / or the second mounting portion 102; the spindle assembly 2 is rotatably connected between the first mounting portion 101 and the second mounting portion 102; the driving support assembly is at least partially arranged in the mounting cavity and is transmission-connected to the spindle assembly 2; the driving support assembly includes a plurality of transmission structures, and the transmission structures are used to drive the mechanical transmission of various components in the support assembly; the injection tube group 3 is connected to the mounting cavity, and the lubricating liquid is suitable for being injected into the mounting cavity by the injection tube group 3 and infiltrating the transmission structure; the drainage tube group 4 is connected to the mounting cavity, and the lubricating liquid infiltrating the transmission structure is suitable for being discharged by the drainage tube group 4.

[0054] In the above embodiment, the spindle assembly 2 connected between the first mounting part 101 and the second mounting part 102 in the shell 1 is driven by the driving support assembly in the mounting cavity, so that the spindle assembly 2 rotates to adjust the position of the electric spindle; lubricating liquid is injected into the mounting cavity of the shell 1 through the injection tube group 3 to provide lubrication for the transmission structure in the driving support assembly, and the excess lubricating liquid in the mounting cavity of the shell 1 after the transmission structure is infiltrated is discharged through the drainage tube group 4. The lubricating liquid in the mounting cavity can be quickly replaced without disassembling the shell 1, so as to simplify the operating steps of replacing the lubricating liquid and improve the replacement efficiency, thereby solving the problem of cumbersome steps and low efficiency in the current operation method of replacing the lubricating liquid in the vertical-horizontal conversion swing head structure.

[0055] Specifically, Figure 2-Figure 7 As shown, the injection pipe group 3 is provided with a plurality of injection pipes, which are respectively extended toward the several transmission structures in the driving support assembly, so that the lubricating liquid can penetrate the mechanical transmission positions of the components in the driving support assembly to provide lubrication and ensure smooth transmission between the several transmission structures; similarly, the discharge pipe group 4 is provided with a plurality of discharge pipes, which are respectively extended toward the several transmission structures in the driving support assembly. After soaking the transmission structures, the excess lubricating liquid is discharged through the plurality of discharge pipes, thereby improving the discharge efficiency of the excess lubricating liquid and also improving the replacement efficiency of the lubricating liquid.

[0056] Further, as an implementation mode, the multiple injection pipelines arranged in the injection tube group 3 are arranged as hoses, and the hoses are passed through the first mounting part 101 and the second mounting part 102 and directly extended into the corresponding positions of several transmission structures in the driving support assembly inside the mounting cavity, and the discharge tube group 4 is arranged in the same manner; as another implementation mode, the multiple injection pipelines arranged in the injection tube group 3 are directly formed by through holes passing through the first mounting part 101 and the second mounting part 102, and the discharge tube group 4 is arranged in the same manner.

[0057] Furthermore, the lubricating liquid is lubricating oil, liquid molybdenum disulfide, etc., and lubricating oil is preferred in this embodiment.

[0058] Furthermore, if Figure 1 , Figure 3 As shown, the first mounting portion 101 and the second mounting portion 102 form a fork-shaped structure on the housing 1, and the spindle assembly 2 can be rotatably mounted in the internal space formed by the fork-shaped structure. The mounting cavity is set according to the distribution position of the driving support assembly used to drive and support the spindle assembly 2 in the first mounting portion 101 and the second mounting portion 102. When the driving support assembly is only set in one of the first mounting portion 101 and the second mounting portion 102, the mounting cavity is only set inside one of the first mounting portion 101 and the second mounting portion 102; when the driving support assembly is simultaneously set in the first mounting portion 101 and the second mounting portion 102, the mounting cavity needs to be set inside both the first mounting portion 101 and the second mounting portion 102. In this embodiment, part of the driving support assembly set in the first mounting portion 101 plays a driving role; part of the driving support assembly set in the second mounting portion 102 plays a supporting role.

[0059] Furthermore, if Figure 1 , Figure 3 , Figure 8 , Fig. 9 As shown, a threading hole 1013 is provided on the side of the first mounting portion 101, the spindle assembly 2 includes a spindle housing 201 and a side shield 202 provided on the side of the spindle housing 201, and a top shield 203 provided on the top of the spindle housing 201, and the electric spindle 2011 is provided at the bottom of the spindle housing 201, and the spindle assembly 2 is driven by a driving support assembly, so that the spindle housing 201 of the spindle assembly 2 is rotated to realize the position adjustment of the electric spindle 2011. The spindle housing 201 is provided with a channel for the spindle cables and pipelines to pass through or pass through, and the two ends thereof are provided as a channel start end 2012 and a channel end 2013. The channel start end 2012 of the internal channel of the spindle housing 201 is provided on the upper end surface of the spindle housing 201, and the channel end 2013 of the internal channel is provided in the middle of the spindle housing 201. The cables and pipelines as a whole enter the first mounting part 101 from the threading hole 1013 of the first mounting part 101, pass through the first mounting part 101, pass through the spindle housing 201 from the channel start end 2012, and pass through the spindle housing 201 from the channel end 2013. The cables and pipelines passing through the spindle housing 201 are connected to the electric spindle 2011. Soft materials 2014 are provided at both the channel start end 2012 and the channel end 2013 for protecting the cables and pipelines.

[0060] In some embodiments, Figure 2-Figure 7 As shown, the injection tube set 3 is formed by a through hole penetrating the first mounting portion 101 and / or the second mounting portion 102 ; and / or the discharge tube set 4 is formed by a through hole penetrating the first mounting portion 101 and / or the second mounting portion 102 .

[0061] In the above embodiment, the injection pipe group 3 and the discharge pipe group 4 are arranged to be formed by through holes penetrating the first mounting part 101 and the second mounting part 102, and the shell 1 itself is modified to form the inlet and outlet pipelines of the lubricating liquid, thereby improving the compactness of the vertical and horizontal conversion swing head structure.

[0062] Specifically, Figure 2 , Figure 5 , Figure 7 As shown, the multiple injection pipelines arranged in the injection tube group 3 are directly formed by the through holes penetrating the first mounting part 101 and the second mounting part 102; similarly, the multiple drainage pipelines arranged in the drainage tube group 4 are directly formed by the through holes penetrating the first mounting part 101 and the second mounting part 102.

[0063] Furthermore, the arrangement of the injection tube group 3 and the drainage tube group 4 includes at least the following types. First, only the injection tube group 3 is arranged to be formed by a through hole penetrating the first mounting portion 101 and the second mounting portion 102; second, only the drainage tube group 4 is arranged to be formed by a through hole penetrating the first mounting portion 101 and the second mounting portion 102; third, both the injection tube group 3 and the drainage tube group 4 are arranged to be formed by a through hole penetrating the first mounting portion 101 and the second mounting portion 102. The third arrangement is adopted in this embodiment.

[0064] In some embodiments, Figure 2 , Figure 5 , Figure 7 As shown, the end of the injection tube group 3 communicating with the outside is provided with a liquid inlet 30 , the end of the discharge tube group 4 communicating with the outside is provided with a liquid outlet 40 , and the liquid inlet 30 is located above the liquid outlet 40 .

[0065] In the above embodiment, the liquid inlet 30 of the liquid injection tube group 3 is arranged above the liquid outlet 40 of the liquid discharge tube group 4, so as to accelerate the discharge speed of the lubricating liquid by utilizing gravity, and further improve the replacement efficiency of the lubricating liquid.

[0066] Specifically, Figure 2 , Figure 5 , Figure 7 As shown, the injection pipe group 3 is provided with multiple injection pipelines, and multiple liquid inlets 30 are formed; the discharge pipe group 4 is provided with multiple discharge pipelines, and multiple liquid outlets 40 are formed. The multiple injection pipelines are provided correspondingly to the multiple discharge pipelines, and it is ensured that the liquid inlet 30 of the corresponding group of injection pipelines is located above the liquid outlet 40 of the discharge pipeline.

[0067] In some embodiments, Figure 2 , Figure 5 , Figure 7 As shown, the vertical-horizontal conversion swing head structure also includes a plurality of blocking structures, and the blocking structures are arranged at the liquid inlet 30 and / or the liquid outlet 40.

[0068] In the above embodiment, by setting a sealing structure at the liquid inlet 30 and the liquid outlet 40, the lubricant in the installation cavity can be prevented from flowing out when the transmission structure of the driving support assembly is running, and at the same time, the sealing performance of the vertical-horizontal conversion swing head structure is improved, preventing impurities from entering the installation cavity through the injection pipe group 3 and the discharge pipe group 4.

[0069] Specifically, the blocking structure is configured as a sealing plug.

[0070] Furthermore, the blocking structure can be arranged in at least the following ways: First, the blocking structure is arranged only at the liquid inlet 30 of the liquid injection tube group 3; second, the blocking structure is arranged only at the liquid outlet 40 of the liquid discharge tube group 4; third, the blocking structure is arranged at both the liquid inlet 30 of the liquid injection tube group 3 and the liquid outlet 40 of the liquid discharge tube group 4. The third arrangement is adopted in this embodiment.

[0071] In some embodiments, Figure 1 , Figure 2 , Figure 5 , Figure 7 , Fig.10 As shown, a first mounting cavity is formed inside the first mounting portion 101 , and the driving support assembly includes a driving assembly 5 at least partially disposed in the first mounting cavity; the driving assembly 5 is used to drive the spindle assembly 2 to rotate.

[0072] The driving assembly 5 includes a driving motor 501 , a cam structure 502 and a driving spindle 503 .

[0073] A first gear 5011 is provided at the output end of the driving motor 501; a second gear 5021 meshing with the first gear 5011 is provided at one end of the cam structure 502, and a side gear 5022 is provided on the side wall of the cam structure 502; the driving core shaft 503 is fixedly connected to the main shaft assembly 2, and a plurality of rollers 5031 are provided at radial intervals along the driving core shaft 503, and the rollers 5031 mesh with the side gears 5022.

[0074] Specifically, Figure 1 , Figure 2 , Fig.10 As shown, the output end of the driving motor 501 outputs power to drive the first gear 5011 to rotate, the first gear 5011 drives the second gear 5021 to rotate, the second gear 5021 drives the cam structure 502 to rotate, so that the side gear 5022 and the roller 5031 are transmitted, driving the driving core shaft 503 to rotate, and finally driving the main shaft assembly 2 to rotate; the transmission form of driving the cam roller structure by the driving motor 501 is improved, and the transmission stability and overall rigidity of the vertical-horizontal conversion swing head structure are improved to be suitable for heavy-load conditions.

[0075] Furthermore, if Figure 1 , Figure 2 , Fig.10 As shown, the motor mounting plate 504 is located at the bottom of the mounting groove 1011 set at the top of the first mounting part 101, the driving motor 501 is installed on the motor mounting plate 504, and the mounting cover 1012 is set at the outside of the first mounting part 101 to cover the part of the driving motor 501 exposed from the first mounting part 101; the first gear 5011 is connected to the output shaft of the driving motor 501 through a tightening sleeve; the first gear 5011 and the second gear 5021 are meshed under the motor mounting plate 504 and are located in the gear groove inside the mounting cavity, so as to improve the installation strength and operation stability of the first mounting part 101 and the housing 1; the gear groove is a cam-shaped structure, which is convenient for gear transmission and reduces the effect of lubricating fluid on the gear groove. The influence of load; the second gear 5021 is fixedly connected to one end of the cam structure 502 by screws; driving bearings 505 are arranged at both ends of the cam structure 502, and bearing seats 506 for mounting the driving bearing 505 on the inner wall of the first mounting part 101 are arranged, and bearing baffles 507 fixed to the inner wall of the first mounting part 101 by screws are arranged, so as to facilitate the disassembly and replacement of the driving bearing 505; the driving core shaft 503 is connected to the inner ring of the turntable bearing 508 and the bearing support ring 509 by screws, and the bearing support ring 509 is arranged on the side of the spindle box 201 close to the driving core shaft 503, so as to seal the turntable bearing 508 and enhance the overturning rigidity of the turntable bearing 508.

[0076] The injection pipe group 3 includes a first injection pipe 301 and a second injection pipe 302, the first injection pipe 301 extends toward the first gear 5011 and / or the second gear 5021, and the second injection pipe 302 extends toward the roller 5031 and / or the side gear 5022; the drainage pipe group 4 includes a first drainage pipe 401 and a second drainage pipe 402, the first drainage pipe 401 extends toward the first gear 5011 and / or the second gear 5021, and the second drainage pipe 402 extends toward the roller 5031 and / or the side gear 5022.

[0077] In the above embodiment, lubricating liquid is injected through the first injection pipeline 301 to provide lubrication for the transmission structure of the first gear 5011 and the second gear 5021, and lubricating liquid is injected through the second injection pipeline 302 to provide lubrication for the transmission structure of the roller 5031 and the side gear 5022; the excess lubricating liquid after wetting the transmission structure of the first gear 5011 and the second gear 5021 is discharged through the first drainage pipeline 401, and the excess lubricating liquid after wetting the transmission structure of the roller 5031 and the side gear 5022 is discharged through the second drainage pipeline 402, so that the lubricating liquid in the first installation cavity can be quickly replaced without disassembling the shell 1.

[0078] Specifically, Figure 2 , Figure 5 , Figure 7 As shown, since there is a transmission match between the first gear 5011 and the second gear 5021, the lubricant is injected into the position of one of the transmission structures of the first gear 5011 and the second gear 5021 through the first injection pipeline 301, and the lubricant is distributed on the first gear 5011 and the second gear 5021 through the transmission match, which reduces the number of holes and reduces the modification cost; of course, the lubricant can also be injected into the first gear 5011 and the second gear 5021 at the same time through two groups of first injection pipelines 301 to improve the efficiency of injecting the lubricant. Similarly, setting a group of first drainage pipelines 401 can reduce the number of holes and reduce the modification cost, and setting two groups of first drainage pipelines 401 can improve the efficiency of discharging the lubricant. There is also a transmission match between the roller 5031 and the side gear 5022, and the setting method of the second injection pipeline 302 and the second drainage pipeline 402 is similar to the above, which will not be repeated.

[0079] Furthermore, if Figure 2 , Figure 5 , Figure 7 As shown, in this embodiment, the lubricating liquid is injected into the position of the second gear 5021 through the first injection pipeline 301, and the lubricating liquid is injected into the position of the roller 5031 through the second injection pipeline 302; the first discharge pipeline 401 is set close to the second gear 5021, and the second discharge pipeline 402 is set close to the roller 5031.

[0080] In some embodiments, Fig.10 , Fig.11 As shown, a hydraulic brake assembly 6 is arranged in the first mounting cavity, and the hydraulic brake assembly 6 is arranged between the inner wall of the first mounting portion 101 and the outer wall of the driving core shaft 503, suitable for preventing the main shaft assembly 2 from rotating; a sealing structure 7 is arranged between the hydraulic brake assembly 6 and the inner wall of the first mounting portion 101; and / or, a sealing structure 7 is arranged between the hydraulic brake assembly 6 and the outer wall of the driving core shaft 503.

[0081] In the above embodiment, the lubricating fluid and the hydraulic oil in the hydraulic brake assembly 6 are separated by providing the sealing structure 7 .

[0082] Specifically, Fig.10 , Fig.11 As shown, the sealing structure 7 is configured as a sealing ring, a gasket, etc.

[0083] Furthermore, the setting position of the sealing structure 7 includes at least the following types. First, the sealing structure 7 is only provided between the hydraulic brake assembly 6 and the inner wall of the first mounting portion 101; second, the sealing structure 7 is only provided between the hydraulic brake assembly 6 and the outer wall of the driving spindle 503; third, the sealing structure 7 is provided between the hydraulic brake assembly 6 and the inner wall of the first mounting portion 101, and between the hydraulic brake assembly 6 and the outer wall of the driving spindle 503. The third setting form is adopted in this embodiment. When the sealing structure 7 is provided as a sealing ring, the sealing ring is sleeved on the outer periphery of the cylinder body 601 of the hydraulic brake assembly 6, and can simultaneously seal between the hydraulic brake assembly 6 and the inner wall of the first mounting portion 101, and between the hydraulic brake assembly 6 and the outer wall of the driving spindle 503.

[0084] Furthermore, if Fig.10 , Fig.11 As shown, the hydraulic brake assembly 6 includes a cylinder 601 , a piston 602 , a spring 603 , a brake pressure plate 604 , a first brake pad 605 , a second brake pad 606 and an encoder 607 . The first brake pad 605 is fixed on the driving spindle 503, and the second brake pad 606 is fixed on the inner wall of the first mounting portion 101. The hydraulic oil pushes the piston 602 to press the first brake pad 605 and the second brake pad 606 to press the driving spindle 503, limit the rotation of the driving spindle 503, and thus lock the main shaft assembly 2. In order to make the piston 602 evenly press the first brake pad 605 and the second brake pad 606, an annular groove is designed on the piston 602; when there is no hydraulic oil to push the piston 602 to move, the spring 603 between the piston 602 and the brake pressure plate 604 will push the piston 602 in the opposite direction, thereby separating the first brake pad 605 and the second brake pad 606 from each other, and the driving spindle 503 can rotate freely; the encoder 607 detects and identifies the input command, and sends a brake command to the hydraulic brake assembly 6.

[0085] In some embodiments, Fig.10 As shown, a second mounting cavity is formed inside the second mounting portion 102 , and the driving support assembly includes a support assembly 8 disposed in the second mounting cavity; the support assembly 8 is used to support the spindle assembly 2 .

[0086] The support assembly 8 includes: a support core shaft 801 and a bearing chamber 802 .

[0087] The support core shaft 801 is fixedly connected to the main shaft assembly 2 ; the bearing chamber 802 is installed on the inner wall of the second mounting portion 102 , and the inner wall of the bearing chamber 802 is provided with a support bearing 803 , and the support bearing 803 is connected to the outer peripheral side of the support core shaft 801 .

[0088] Specifically, Fig.10As shown, the support core shaft 801 is fixedly connected to the main shaft assembly 2 to provide support for the main shaft assembly 2, and the support bearing 803 is used to improve the smoothness of the synchronous rotation of the support core shaft 801 and the main shaft assembly 2.

[0089] The injection pipe group 3 further includes a third injection pipeline, which is extended toward the support bearing 803 ; the discharge pipe group 4 further includes a third discharge pipeline, which is extended toward the support bearing 803 .

[0090] In the above embodiment, lubricating liquid is injected through the third liquid injection pipeline to provide lubrication for the transmission structure of the support bearing 803; the excess lubricating liquid after wetting the transmission structure of the support bearing 803 is discharged through the third liquid discharge pipeline, and the lubricating liquid in the second installation cavity is quickly replaced without disassembling the shell 1.

[0091] In some embodiments, Fig.10 , Fig.12 As shown, the support assembly 8 also includes a support pressure plate 804, which is connected to the side of the support core shaft 801 away from the main shaft assembly 2; a limiting rotor 8041 is provided on the side of the support pressure plate 804 away from the support core shaft 801, and a limiting structure corresponding to the limiting rotor 8041 is provided on the inner wall of the second mounting portion 102, and the limiting rotor 8041 is suitable for counteracting the limiting structure to limit the rotation position of the main shaft assembly 2.

[0092] In the above embodiment, the support pressure plate 804 is arranged on the end surface of the support core shaft 801 away from the main shaft assembly 2, which can press the support core shaft 801 to improve the compactness of the vertical-horizontal conversion swing head structure; the limiting rotor 8041 can limit the rotation position of the main shaft assembly 2 to ensure that the main shaft assembly 2 rotates within the stroke range, and the limiting rotor 8041 is integrated on the support pressure plate 804, reducing the size specifications of the internal components of the vertical-horizontal conversion swing head structure.

[0093] Specifically, Fig.10 , Fig.12 As shown, during the rotation of the spindle assembly 2, when the two sides of the limiting rotor 8041 integrated on the support pressure plate 804 respectively abut against the limiting structure of the inner wall of the second mounting portion 102, the spindle assembly 2 can be limited to two rotation positions, and the range between the two rotation positions is the travel range of the spindle assembly 2.

[0094] In some embodiments, Figure 3 , Fig.10 As shown, the vertical-horizontal conversion swing head structure also includes an adjusting screw 9 arranged through the second mounting portion 102 , and the screw-in end of the adjusting screw 9 is suitable for abutting against the bearing chamber 802 to adjust the installation position of the bearing chamber 802 .

[0095] In the above embodiment, the coaxiality of the support bearing 803 and the support spindle 801 can be adjusted by using the adjusting screw 9, thereby improving the smoothness and stability of the rotation of the main shaft assembly 2.

[0096] Specifically, Figure 3 , Fig.10 As shown, the second mounting portion 102 is provided with a threaded mounting hole at a corresponding position of the bearing chamber 802, and the adjusting screw 9 cooperates with the threaded mounting hole. The adjusting screw 9 can be screwed in or out to adjust the position of the bearing chamber 802, thereby adjusting the coaxiality of the support bearing 803 and the support core shaft 801.

[0097] In a second aspect, the utility model further provides a machine tool, comprising the vertical-horizontal conversion swing head structure of any one of the above-mentioned embodiments.

[0098] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A vertical and horizontal conversion swing head structure, characterized in that: include: The housing (1) comprises a first mounting portion (101) and a second mounting portion (102) which are arranged opposite to each other, wherein a mounting cavity is formed inside the first mounting portion (101) and / or the second mounting portion (102); A main shaft assembly (2) rotatably connected between the first mounting portion (101) and the second mounting portion (102); a drive support assembly, at least partly disposed in the mounting cavity and in driving connection with the spindle assembly (2); the drive support assembly comprises a plurality of transmission structures, the transmission structures being used for mechanical transmission of various components in the drive support assembly; An injection tube assembly (3) is connected to the installation cavity, and lubricating liquid is suitable for being injected into the installation cavity through the injection tube assembly (3) and infiltrating the transmission structure; A drainage pipe group (4) is communicated with the installation cavity, and the lubricating liquid that soaks the transmission structure is suitable for being discharged through the drainage pipe group (4).

2. The vertical-horizontal conversion swing head structure according to claim 1 is characterized in that: The injection tube assembly (3) is formed by a through hole penetrating the first mounting portion (101) and / or the second mounting portion (102); And / or, the drainage tube group (4) is formed by a through hole that penetrates the first mounting portion (101) and / or the second mounting portion (102).

3. The vertical-horizontal conversion swing head structure according to claim 2 is characterized in that: The end of the injection tube group (3) communicating with the outside is provided with a liquid inlet (30), and the end of the discharge tube group (4) communicating with the outside is provided with a liquid outlet (40), and the liquid inlet (30) is located above the liquid outlet (40).

4. The vertical-horizontal conversion swing head structure according to claim 3 is characterized in that: It also comprises a plurality of blocking structures, wherein the blocking structures are arranged at the liquid inlet (30) and / or the liquid outlet (40).

5. The vertical-horizontal conversion swing head structure according to any one of claims 1 to 4, characterized in that: A first installation cavity is formed inside the first installation portion (101), and the drive support assembly comprises a drive assembly (5) at least partially disposed in the first installation cavity; The driving assembly (5) comprises: A driving motor (501), the output end of which is provided with a first gear (5011); A cam structure (502), one end of which is provided with a second gear (5021) meshing with the first gear (5011), and a side gear (5022) is provided on the side wall; A driving spindle (503) is fixedly connected to the main shaft assembly (2), and a plurality of rollers (5031) are arranged at intervals along the radial direction of the driving spindle (503), and the rollers (5031) are meshed with the side gears (5022); The injection pipe assembly (3) comprises a first injection pipeline (301) and a second injection pipeline (302), wherein the first injection pipeline (301) is extended toward the first gear (5011) and / or the second gear (5021), and the second injection pipeline (302) is extended toward the roller (5031) and / or the side gear (5022); The drainage pipe group (4) comprises a first drainage pipeline (401) and a second drainage pipeline (402), wherein the first drainage pipeline (401) is extended toward the first gear (5011) and / or the second gear (5021), and the second drainage pipeline (402) is extended toward the roller (5031) and / or the side gear (5022).

6. The vertical-horizontal conversion swing head structure according to claim 5 is characterized in that: A hydraulic brake assembly (6) is arranged in the first mounting cavity, and the hydraulic brake assembly (6) is arranged between the inner wall of the first mounting portion (101) and the outer wall of the driving spindle (503), and is suitable for preventing the main shaft assembly (2) from rotating; A sealing structure (7) is provided between the hydraulic brake assembly (6) and the inner wall of the first mounting portion (101); and / or a sealing structure (7) is provided between the hydraulic brake assembly (6) and the outer wall of the driving spindle (503).

7. The vertical-horizontal conversion swing head structure according to any one of claims 1-4 and 6, characterized in that: A second installation cavity is formed inside the second installation portion (102), and the driving support assembly comprises a support assembly (8) arranged in the second installation cavity; The support assembly (8) comprises: A supporting mandrel (801) fixedly connected to the main shaft assembly (2); A bearing chamber (802) is mounted on the inner wall of the second mounting portion (102), the inner wall of the bearing chamber (802) is provided with a support bearing (803), and the support bearing (803) is connected to the outer peripheral side of the support core shaft (801); The injection pipe assembly (3) further comprises a third injection pipeline, wherein the third injection pipeline is extended toward the support bearing (803); The drainage pipe assembly (4) further comprises a third drainage pipeline, and the third drainage pipeline is extended towards the support bearing (803).

8. The vertical-horizontal conversion swing head structure according to claim 7 is characterized in that: The support assembly (8) further comprises a support pressing plate (804), wherein the support pressing plate (804) is connected to a side of the support spindle (801) away from the main shaft assembly (2); A limiting rotor (8041) is arranged on the side of the support pressure plate (804) away from the support core shaft (801), and the inner wall of the second mounting portion (102) is provided with a limiting structure corresponding to the limiting rotor (8041), and the limiting rotor (8041) is suitable for abutting against the limiting structure to limit the rotation position of the main shaft assembly (2).

9. The vertical-horizontal conversion swing head structure according to claim 7, characterized in that: It also includes an adjusting screw (9) arranged through the second mounting portion (102), wherein the screw-in end of the adjusting screw (9) is suitable for abutting against the bearing chamber (802) to adjust the installation position of the bearing chamber (802).

10. A machine tool, characterized in that: It comprises the vertical-horizontal conversion swing head structure described in any one of claims 1-9.

Images