Numerically-controlled machine tool spindle lubricating mechanism

Abstract

The utility model discloses a lubricating mechanism for a main shaft of a numerical control machine tool, which belongs to the technical field of numerical control machine tools, and comprises four oil outlet pipes, a miniature oil pump, an oil inlet pipe, an oil outlet pipe, an oil outlet pipe, an oil outlet pipe and a lubricating oil pipe, and the upper surfaces of the four oil outlet pipes are fixedly connected to the lower surface of the miniature oil pump; the auxiliary mechanism is arranged on the outer surface of the main shaft and comprises an upper shell, the lower surface of the upper shell is rotationally connected with the outer surface of the main shaft through a bearing, and the inner surface of the upper shell is fixedly connected to the outer surface of the oil outlet pipe; the upper surface of the lower shell is rotationally connected with the outer surface of the main shaft through a bearing; the number of the clamping assemblies is two, and the two clamping assemblies are both arranged in the upper shell and the lower shell, and by arranging the auxiliary mechanism, the problems that a lubricating mechanism is installed through screws, installation is tedious, and when the lubricating mechanism is damaged, disassembly is tedious, and a large amount of time is consumed are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a main shaft lubrication mechanism for numerical control machine tools. Background Art

[0002] CNC machine tools, or digital control machine tools, are automated machine tools equipped with a program control system. They input various data and instructions required for the processing process into the CNC system through programming or other means. After calculation and processing, the CNC device sends out various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing. The development of CNC machine tools has gone through a process from simple to complex, from low-level to high-level. With the development of computer technology, the control accuracy, processing efficiency, and degree of automation of CNC machine tools have been significantly improved. The lubrication of the spindle of CNC machine tools is crucial to the overall performance and processing accuracy of the machine tool. Choosing a suitable lubrication method and regularly maintaining the lubrication system can effectively extend the service life of the spindle, improve processing efficiency and product quality. Therefore, the design, debugging and maintenance of the lubrication system are important links in the use of CNC machine tools.

[0003] Traditional lubrication technology requires workers to disassemble the spindle inside the CNC machine tool or directly pour lubricant on the spindle to lubricate it. This operation is cumbersome and requires professionals to disassemble and lubricate it, which takes a lot of time. In order to solve this problem, a lubrication mechanism installed inside the machine tool is introduced on the market, but the mechanism is installed by screws, which is cumbersome to install. When the lubrication mechanism is damaged, disassembly is cumbersome and takes a lot of time. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a spindle lubrication mechanism for a CNC machine tool, which has the advantage of automatically lubricating the spindle and solves the problem that the lubrication mechanism is installed by screws, which is cumbersome to install, and when the lubrication mechanism is damaged, the disassembly is cumbersome and time-consuming.

[0005] The utility model is implemented in this way: a CNC machine tool spindle lubrication mechanism comprises:

[0006] Spindle;

[0007] Oil storage tank: the oil storage tank is arranged above the main shaft;

[0008] Micro oil pump: four micro oil pumps are provided, and the upper surfaces of the four micro oil pumps are fixedly connected to the lower surface of the oil storage tank;

[0009] Oil outlet pipe: four oil outlet pipes are provided, and the upper surfaces of the four oil outlet pipes are fixedly connected to the lower surface of the micro oil pump;

[0010] Auxiliary mechanism: The auxiliary mechanism is arranged on the outer surface of the main shaft, including:

[0011] Upper shell: the lower surface of the upper shell is rotatably connected to the outer surface of the main shaft through a bearing, and the inner surface of the upper shell is fixedly connected to the outer surface of the oil outlet pipe;

[0012] Lower housing: the upper surface of the lower housing is rotatably connected to the outer surface of the main shaft through a bearing;

[0013] Clamping assembly: There are two clamping assemblies, and both clamping assemblies are arranged inside the upper shell and the lower shell.

[0014] As a preferred embodiment of the present invention, the clamping assembly includes:

[0015] Clamping groove: the clamping groove is provided inside the lower shell;

[0016] Clamping block: The lower surface of the clamping block is in contact with the inner surface of the clamping groove, and a pressure relief component is provided on the opposite side of the clamping block.

[0017] As a preferred embodiment of the utility model, the lower surface of the upper shell is provided with a travel groove, and two travel grooves are provided, and the inner surfaces of the two travel grooves are in a sliding connection with the outer surface of the clamping block.

[0018] As a preferred embodiment of the present invention, two pressure relief assemblies are provided, and the two pressure relief assemblies include:

[0019] Telescopic column: the opposite side of the telescopic column is fixedly connected to the opposite side of the clamping block;

[0020] Pressure relief spring: the pressure relief spring is sleeved on the outer surface of the telescopic column, and one opposite side of the pressure relief spring is fixedly connected to the opposite side of the clamping block.

[0021] As a preferred embodiment of the present invention, a sliding assembly is provided inside the clamping block, and two sliding assemblies are provided, and the two sliding assemblies include:

[0022] First sliding groove: the first sliding groove is provided on the inner surface of the clamping block;

[0023] First sliding member: the outer surface of the first sliding member is slidably connected to the inner surface of the first sliding groove;

[0024] First connecting rod: one opposite side of the first connecting rod is fixedly connected to the outer surface of the first sliding member, and a rotating component is arranged on the opposite side of the first connecting rod.

[0025] As a preferred embodiment of the present invention, two rotating assemblies are provided, and the two rotating assemblies include:

[0026] Connecting column: the outer surface of the connecting column is rotatably connected to the inner surface of the first connecting rod through a bearing;

[0027] Second connecting rod: the second connecting rod is rotatably connected to the rear end surface of the connecting column via a bearing at one side thereof;

[0028] Support rod: the front end surface of the support rod is rotatably connected to the rear end surface of the second connecting rod through a bearing, and the rear end surface of the support rod is fixedly connected to the inner surface of the upper shell;

[0029] Second sliding groove: the second sliding groove is clamped inside the second connecting rod, and a driving component is arranged on the outer surface of the second sliding groove.

[0030] As a preferred embodiment of the present invention, two drive assemblies are provided, and the two drive assemblies include:

[0031] Second sliding member: the outer surface of the second sliding member is slidably connected to the inner surface of the second sliding groove;

[0032] Driving rod: the rear end surface of the driving rod is fixedly connected to the front end surface of the second sliding member;

[0033] Fixed plate: The upper and lower ends of the fixed plate are fixedly connected to the inner surface of the upper shell, and the inner surface of the fixed plate and the outer surface of the driving rod are in a sliding connection relationship.

[0034] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0035] 1. The utility model connects the upper shell and the lower shell to each other by arranging an auxiliary mechanism, a travel groove, a pressure relief assembly, a sliding assembly, a rotating assembly and a driving assembly. By pressing the driving rod inward, the driving rod drives the second sliding member to move inward together, so that the second sliding member squeezes the second connecting rod while moving on the inner wall of the second sliding groove, so that the second connecting rod rotates toward one side of the main shaft with the support rod as the rotation center, the upper end of the second connecting rod is close to the main shaft, and the lower end of the second connecting rod is away from the main shaft. The lower end of the second connecting rod drives the connecting column to rotate together, and the connecting column can The first connecting rod is driven to move to the opposite side, and the first connecting rod can drive the first sliding member to move to the opposite side, so that the first sliding member moves along the inner wall of the first sliding groove while pulling the clamping block to move to the opposite side. The clamping block moves to the opposite side to compress the telescopic column and the pressure-relief spring until the clamping block can enter the clamping groove, and then the pressure-relief spring releases the elastic force, and the pressure-relief spring pushes the clamping block to move the clamping block to the opposite side until the outer surface of the clamping block is in close contact with the inner surface of the clamping groove, thereby achieving the effect of fast and tight installation of the lubrication mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0037] Figure 2 It is a full cross-sectional schematic diagram provided by an embodiment of the utility model;

[0038] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;

[0039] Figure 4 It is an exploded schematic diagram of a rotating assembly provided in an embodiment of the utility model.

[0040] In the figure: 1. main shaft; 2. oil storage tank; 3. micro oil pump; 4. oil outlet pipe; 5. auxiliary mechanism; 510. upper shell; 520. lower shell; 530. clamping assembly; 531. clamping groove; 532. clamping block; 6. travel groove; 7. pressure relief assembly; 701. telescopic column; 702. pressure relief spring; 8. sliding assembly; 801. first sliding groove; 802. first sliding member; 803. first connecting rod; 9. rotating assembly; 901. connecting column; 902. second connecting rod; 903. support rod; 904. second sliding groove; 10. driving assembly; 1001. second sliding member; 1002. driving rod; 1003. fixing plate. DETAILED DESCRIPTION

[0041] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0042] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0043] like Figures 1 to 4 As shown, a CNC machine tool spindle lubrication mechanism provided by an embodiment of the utility model includes:

[0044] Spindle 1;

[0045] Oil storage tank 2: Oil storage tank 2 is arranged above the main shaft 1;

[0046] Micro oil pump 3: four micro oil pumps 3 are provided, and the upper surfaces of the four micro oil pumps 3 are fixedly connected to the lower surface of the oil storage tank 2;

[0047] Oil outlet pipe 4: four oil outlet pipes 4 are provided, and the upper surfaces of the four oil outlet pipes 4 are fixedly connected to the lower surface of the micro oil pump 3;

[0048] Auxiliary mechanism 5: The auxiliary mechanism 5 is arranged on the outer surface of the main shaft 1, and includes:

[0049] Upper shell 510: The lower surface of the upper shell 510 is rotatably connected to the outer surface of the main shaft 1 through a bearing, and the inner surface of the upper shell 510 is fixedly connected to the outer surface of the oil outlet pipe 4;

[0050] Lower housing 520: The upper surface of the lower housing 520 is rotatably connected to the outer surface of the main shaft 1 through a bearing;

[0051] Clamping assembly 530 : Two clamping assemblies 530 are provided, and the two clamping assemblies 530 are both arranged inside the upper shell 510 and the lower shell 520 .

[0052] refer to Figure 3 As shown, the clamping assembly 530 includes:

[0053] The clamping groove 531 is formed inside the lower housing 520 .

[0054] Clamping block 532 : The lower surface of the clamping block 532 contacts the inner surface of the clamping groove 531 , and a pressure relief assembly 7 is disposed on the opposite side of the clamping block 532 .

[0055] The above scheme is adopted: when the main shaft 1 needs to be lubricated, the main shaft 1 is passed through the bearing, and then the upper shell 510 and the lower shell 520 are connected to each other, and the micro oil pump 3 is started by the controller. The micro oil pump 3 makes the lubricating oil inside the oil storage tank 2 flow out along the inside of the oil outlet pipe 4 and flow into the outer surface of the main shaft 1 to achieve the purpose of lubrication; in order to make the upper shell 510 and the lower shell 520 connected more tightly, the clamping block 532 is moved to the opposite side along the inner wall of the clamping groove 531 until the outer surface of the clamping block 532 is in close contact with the inner surface of the clamping groove 531 to achieve the purpose of clamping.

[0056] refer to Figure 3 As shown, the lower surface of the upper shell 510 is provided with a travel groove 6, and two travel grooves 6 are provided. The inner surfaces of the two travel grooves 6 are in a sliding connection with the outer surface of the clamping block 532.

[0057] With the above solution, the travel groove 6 mainly serves to provide a path for the clamping block 532 when the clamping block 532 needs to move.

[0058] refer to Figure 3 As shown, two pressure relief components 7 are provided, and the two pressure relief components 7 include:

[0059] Telescopic column 701: The opposite side of the telescopic column 701 is fixedly connected to the opposite side of the clamping block 532;

[0060] The pressure relief spring 702 is sleeved on the outer surface of the telescopic column 701 , and one opposite side of the pressure relief spring 702 is fixedly connected to the opposite side of the clamping block 532 .

[0061] The above scheme is adopted: in order to make the clamping block 532 enter the clamping groove 531, it is necessary to move the clamping block 532 to the opposite side. The clamping block 532 moves to the opposite side to compress the telescopic column 701 and the pressure relief spring 702 until the clamping block 532 can enter the clamping groove 531, and then the pressure relief spring 702 releases the elastic force, and the pressure relief spring 702 pushes the clamping block 532 to move the clamping block 532 to the opposite side.

[0062] refer to Figure 3 As shown, a sliding assembly 8 is disposed inside the clamping block 532, and two sliding assemblies 8 are provided. The two sliding assemblies 8 include:

[0063] First sliding groove 801: The first sliding groove 801 is formed on the inner surface of the clamping block 532;

[0064] First sliding member 802: the outer surface of the first sliding member 802 is slidably connected to the inner surface of the first sliding groove 801;

[0065] First connecting rod 803 : One opposite side of the first connecting rod 803 is fixedly connected to the outer surface of the first sliding member 802 , and a rotating assembly 9 is disposed on the opposite side of the first connecting rod 803 .

[0066] The above scheme is adopted: in order to make the clamping block 532 enter the clamping groove 531, it is first moved to the opposite side through the first connecting rod 803, and the first connecting rod 803 can drive the first sliding member 802 to move to the opposite side, so that the first sliding member 802 moves along the inner wall of the first sliding groove 801 while pulling the clamping block 532 to move to the opposite side.

[0067] refer to Figure 4 As shown, two rotating assemblies 9 are provided, and the two rotating assemblies 9 include:

[0068] Connecting column 901: The outer surface of the connecting column 901 is rotatably connected to the inner surface of the first connecting rod 803 through a bearing;

[0069] Second connecting rod 902: The second connecting rod 902 is rotatably connected to the rear end surface of the connecting column 901 via a bearing at one side thereof;

[0070] Support rod 903: The front end surface of the support rod 903 is rotatably connected to the rear end surface of the second connecting rod 902 via a bearing, and the rear end surface of the support rod 903 is fixedly connected to the inner surface of the upper shell 510;

[0071] Second sliding groove 904 : The second sliding groove 904 is clamped inside the second connecting rod 902 , and a driving assembly 10 is disposed on the outer surface of the second sliding groove 904 .

[0072] The above scheme is adopted: in order to make the first connecting rod 803 move to the opposite side, the second connecting rod 902 is rotated toward the side of the main shaft 1 with the support rod 903 as the rotation center, the upper end of the second connecting rod 902 is close to the main shaft 1, and the lower end of the second connecting rod 902 is away from the main shaft 1. The lower end of the second connecting rod 902 drives the connecting column 901 to rotate together, and the connecting column 901 can drive the first connecting rod 803 to move to the opposite side.

[0073] refer to Figure 3 As shown, two drive assemblies 10 are provided, and the two drive assemblies 10 include:

[0074] Second sliding member 1001: The outer surface of the second sliding member 1001 is slidably connected to the inner surface of the second sliding groove 904;

[0075] Driving rod 1002: The rear end surface of the driving rod 1002 is fixedly connected to the front end surface of the second sliding member 1001;

[0076] Fixed plate 1003: The upper and lower ends of the fixed plate 1003 are fixedly connected to the inner surface of the upper shell 510, and the inner surface of the fixed plate 1003 and the outer surface of the driving rod 1002 are in a sliding connection relationship.

[0077] The above scheme is adopted: in order to make the second connecting rod 902 rotate, the driving rod 1002 is pressed inward, and the driving rod 1002 drives the second sliding member 1001 to move inward together, so that the second sliding member 1001 squeezes the second connecting rod 902 while moving on the inner wall of the second sliding groove 904, and finally the second connecting rod 902 rotates.

[0078] The working principle of this utility model:

[0079] When in use, the main shaft 1 passes through the bearing, and then the upper shell 510 and the lower shell 520 are connected to each other, and the driving rod 1002 is pressed inward, and the driving rod 1002 drives the second sliding member 1001 to move inward together, so that the second sliding member 1001 squeezes the second connecting rod 902 while moving on the inner wall of the second sliding groove 904, so that the second connecting rod 902 rotates toward the side of the main shaft 1 with the support rod 903 as the rotation center, the upper end of the second connecting rod 902 is close to the main shaft 1, and the lower end of the second connecting rod 902 is away from the main shaft 1, and the lower end of the second connecting rod 902 drives the connecting column 901 to rotate together, and the connecting column 901 can drive the first connecting rod 803 to move to the opposite side, and the first connecting rod 803 can drive The first sliding member 802 moves to the opposite side together, so that the first sliding member 802 moves along the inner wall of the first sliding groove 801 while pulling the clamping block 532 to move to the opposite side. The clamping block 532 moves to the opposite side to compress the telescopic column 701 and the pressure relief spring 702 until the clamping block 532 can enter the clamping groove 531. Then the pressure relief spring 702 releases its elastic force, and the pressure relief spring 702 pushes the clamping block 532 to move the clamping block 532 to the opposite side until the outer surface of the clamping block 532 is in close contact with the inner surface of the clamping groove 531. Only then can the micro oil pump 3 be started through the controller, and the micro oil pump 3 will make the lubricating oil inside the oil storage tank 2 flow out along the oil outlet pipe 4 and flow into the outer surface of the main shaft 1 to achieve the purpose of lubrication.

[0080] To sum up: this CNC machine tool spindle lubrication mechanism, through the spindle 1, oil storage tank 2, micro oil pump 3, oil outlet pipe 4, auxiliary mechanism 5, travel groove 6, pressure relief assembly 7, sliding assembly 8, rotating assembly 9 and driving assembly 10, solves the problem that the lubrication mechanism is installed by screws, the installation is cumbersome, and when the lubrication mechanism is damaged, the disassembly is cumbersome and time-consuming.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spindle lubrication mechanism for a CNC machine tool, characterized in that: include: Spindle (1); Oil storage tank (2): the oil storage tank (2) is arranged above the main shaft (1); Micro oil pump (3): four micro oil pumps (3) are provided, and the upper surfaces of the four micro oil pumps (3) are fixedly connected to the lower surface of the oil storage tank (2); Oil outlet pipe (4): four oil outlet pipes (4) are provided, and the upper surfaces of the four oil outlet pipes (4) are fixedly connected to the lower surface of the micro oil pump (3); Auxiliary mechanism (5): The auxiliary mechanism (5) is arranged on the outer surface of the main shaft (1), and comprises: Upper shell (510): the lower surface of the upper shell (510) is rotatably connected to the outer surface of the main shaft (1) via a bearing, and the inner surface of the upper shell (510) is fixedly connected to the outer surface of the oil outlet pipe (4); Lower housing (520): the upper surface of the lower housing (520) is rotatably connected to the outer surface of the main shaft (1) via a bearing; Clamping assembly (530): Two clamping assemblies (530) are provided, and the two clamping assemblies (530) are both arranged inside the upper shell (510) and the lower shell (520).

2. A CNC machine tool spindle lubrication mechanism as claimed in claim 1, characterized in that: The clamping assembly (530) comprises: Clamping groove (531): the clamping groove (531) is provided inside the lower housing (520); Clamping block (532): the lower surface of the clamping block (532) is in contact with the inner surface of the clamping groove (531), and a pressure relief component (7) is provided on the opposite side of the clamping block (532).

3. A CNC machine tool spindle lubrication mechanism as claimed in claim 2, characterized in that: The lower surface of the upper shell (510) is provided with a travel groove (6), and two travel grooves (6) are provided. The inner surfaces of the two travel grooves (6) are in a sliding connection with the outer surface of the clamping block (532).

4. A CNC machine tool spindle lubrication mechanism as claimed in claim 2, characterized in that: The pressure relief components (7) are provided with two, and the two pressure relief components (7) include: Telescopic column (701): opposite sides of the telescopic column (701) are fixedly connected to opposite sides of the clamping block (532); Compression-relieving spring (702): The compression-relieving spring (702) is sleeved on the outer surface of the telescopic column (701), and one opposite side of the compression-relieving spring (702) is fixedly connected to the opposite side of the clamping block (532).

5. A CNC machine tool spindle lubrication mechanism as claimed in claim 2, characterized in that: A sliding assembly (8) is arranged inside the clamping block (532), and two sliding assemblies (8) are provided. The two sliding assemblies (8) include: First sliding groove (801): the first sliding groove (801) is provided on the inner surface of the clamping block (532); First sliding member (802): the outer surface of the first sliding member (802) is slidably connected to the inner surface of the first sliding groove (801); First connecting rod (803): the first connecting rod (803) is fixedly connected to the outer surface of the first sliding member (802) on one opposite side, and a rotating assembly (9) is provided on the opposite side of the first connecting rod (803).

6. A CNC machine tool spindle lubrication mechanism as claimed in claim 5, characterized in that: The rotating components (9) are provided with two, and the two rotating components (9) include: Connecting column (901): the outer surface of the connecting column (901) is rotatably connected to the inner surface of the first connecting rod (803) via a bearing; A second connecting rod (902): the opposite side of the second connecting rod (902) is rotatably connected to the rear end surface of the connecting column (901) via a bearing; Support rod (903): the front end surface of the support rod (903) is rotatably connected to the rear end surface of the second connecting rod (902) via a bearing, and the rear end surface of the support rod (903) is fixedly connected to the inner surface of the upper shell (510); Second sliding groove (904): the second sliding groove (904) is clamped inside the second connecting rod (902), and a driving component (10) is provided on the outer surface of the second sliding groove (904).

7. A CNC machine tool spindle lubrication mechanism as claimed in claim 6, characterized in that: The driving components (10) are provided with two, and the two driving components (10) include: Second sliding member (1001): the outer surface of the second sliding member (1001) is slidably connected to the inner surface of the second sliding groove (904); Driving rod (1002): the rear end surface of the driving rod (1002) is fixedly connected to the front end surface of the second sliding member (1001); Fixed plate (1003): The upper and lower ends of the fixed plate (1003) are fixedly connected to the inner surface of the upper shell (510), and the inner surface of the fixed plate (1003) and the outer surface of the driving rod (1002) are in a sliding connection relationship.

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