Multifunctional gantry turning and milling composite machine tool

Abstract

The invention discloses a multifunctional gantry turning and milling composite machine tool, which belongs to the technical field of machining machine tools and comprises a gantry and a cutting fluid spraying mechanism. A table top through hole is formed in the table top of the workbench, a stepping motor is erected at the table top through hole, a liquid storage frame is arranged at the bottom of the table top of the workbench and used for bearing cutting liquid flowing down from the table top through hole, and a liquid outlet is formed in one side of the liquid storage frame and connected with an electric pump through a backflow pipeline assembly. A filtering mechanism is arranged in the backflow pipeline assembly, the liquid outlet end of the electric pump is connected with a liquid outlet pipe, and the liquid outlet pipe is connected with a cutting liquid spray head. The liquid storage frame is arranged at the bottom of the workbench to collect and store cutting liquid with impurities flowing down from the cutter, the three-jaw chuck and the to-be-machined part, the cutting liquid is filtered through the backflow pipeline assembly and then conveyed to the cutting spray head again to be circularly sprayed and used, and the use cost of the cutting liquid is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of machining tools, and in particular, to a multi-functional gantry turning and milling compound machine tool. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of this application. To the extent described in this section, the work of the currently named inventors and aspects that may not constitute prior art descriptions at the time of filing are neither expressly nor impliedly considered prior art to this application.

[0003] In the field of industrial processing, with the development of industrial technology, the requirements for parts in various industries are getting higher and higher. Not only are the structural forms becoming more and more complex, but also the requirements for precision are getting higher and higher, making the processing procedures of each part more and more complicated, such as the need to perform turning, milling and other processing operations. Therefore, the development of composite machining technology is getting faster and faster. Composite machining is to realize several different processing technologies on one machine tool. Typically, turning and milling compound machining is realized through the numerical control equipment of a turning and milling compound machine tool.

[0004] For example, a vertical and inverted turning and milling compound machine tool disclosed in a Chinese patent with the patent publication number CN112917155A is composed of a bed, a crossbeam and columns of a gantry structure, a first X-axis moving component, a second X-axis moving component, a first Z-axis moving component, a second Z-axis moving component and a Y-axis moving component. The first X moving component and the second X moving component are installed side by side on the crossbeam and are respectively controlled by a first X-axis drive and a second X-axis drive; the first Z-axis moving component and the second Z-axis moving component are respectively installed on the first X-axis moving component and the second X-axis moving component and are respectively controlled by a first Z-axis drive and a second Z-axis drive; a turning and milling electric spindle is installed on the first Z-axis moving component, and an inverted turntable is installed on the second Z-axis moving component; a vertical turntable and a tool holder capable of installing and fixing turning tools and rotary milling cutters are arranged on the Y-axis moving component. This solution can simultaneously realize the turning and milling compound machining of the front and back sides of the workpiece in one clamping, and has the advantage of high production efficiency.

[0005] We found the following problems in the long-term use and customer research of existing turning and milling compound machine tools that need to be further improved: 1. During the turning and milling process, it may be necessary to spray cutting fluid onto the tool and the part to cool the tool and wash away chips, etc. During the long-term processing, the consumption of cutting fluid is large, and there are problems such as the difficulty in effectively controlling the use cost, the difficulty in treating the cutting fluid mixed with chips, and the easy splashing and leakage of the cutting fluid, which affect the workshop working environment; 2. When the tool is driven by the driving mechanism on the gantry to a preset position for machining, due to various vibrations of the whole machine tool, it is easy to cause slight deviation of the tool, resulting in difficulty in further improving the machining accuracy and affecting the machining efficiency.

[0006] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0007] In view of at least one of the above technical problems, the present application provides a multi-functional gantry turning-milling composite machine tool, which can collect and store the cutting fluid with impurities flowing down from the tool, three-jaw chuck and the part to be machined at the bottom of the workbench through a liquid storage frame, and after filtering the cutting fluid through a reflux pipeline assembly, re-transport it to the cutting nozzle for cyclic spraying use, greatly reducing the use cost of the cutting fluid.

[0008] According to one aspect of the present application, there is provided a multi-functional gantry turning-milling composite machine tool, including a gantry, a workbench, a three-jaw chuck and a tool, as well as a Y-axis driving mechanism and an X-axis driving mechanism provided on the gantry for driving the tool to move in the Y-axis direction and the X-axis direction respectively. The multi-functional gantry turning-milling composite machine tool further includes a cutting fluid spraying mechanism, and the cutting fluid spraying mechanism includes a cutting fluid nozzle, a liquid outlet pipe, an electric pump and a reflux pipeline assembly. The cutting fluid nozzle is installed on the Y-axis driving mechanism, and the cutting fluid nozzle is used to spray cutting fluid onto the tool and the part to be machined on the three-jaw chuck; The workbench is supported below the gantry. A table through hole is opened on the table surface of the workbench. A stepping motor is installed at the table through hole. The output shaft of the stepping motor vertically upward is connected to the three-jaw chuck. The stepping motor is used to drive the three-jaw chuck and the part to be machined to rotate. A liquid storage frame is provided at the bottom of the table surface of the workbench. The liquid storage frame is used to receive the cutting fluid flowing down from the table through hole. An outlet is opened on one side of the liquid storage frame. The outlet is connected to the electric pump through a reflux pipeline assembly. A filtering mechanism is provided in the reflux pipeline assembly. The filtering mechanism is used to filter the impurities in the cutting fluid in the reflux pipeline assembly. The liquid outlet end of the electric pump is connected to the liquid outlet pipe. The liquid outlet pipe is connected to the cutting fluid nozzle. The liquid outlet pipe is used to transport the filtered cutting fluid to the cutting fluid nozzle.

[0009] In some embodiments of the present application, a support frame is provided at the table through hole. The support frame is used to support and fix the stepping motor. A limit cover is provided on the support frame. The limit cover is used to cover and protect the stepping motor. The output shaft of the stepping motor passes through a preset bearing on the top plate of the limit cover and is connected to the three-jaw chuck. There is a gap between the outer periphery of the limit cover and the table through hole.

[0010] In some embodiments of the present application, a second retaining ring is provided on the outer periphery of the tabletop through hole on the upper part of the tabletop of the workbench. The second retaining ring is used to shield the three-jaw chuck to prevent the liquid splashing on the three-jaw chuck from sliding down along the inner wall of the second retaining ring into the tabletop through hole. A plurality of liquid outlet through holes are spaced apart on the three-jaw chuck, and a first retaining ring is provided at the bottom of the three-jaw chuck. The first retaining ring is used to shield the output shaft of the stepping motor.

[0011] In some embodiments of the present application, the bottom plate of the liquid storage frame is of an inclined plate structure and slopes upward in the direction of the liquid outlet. A slag discharge door is provided on the side wall of the liquid storage frame opposite to the liquid outlet.

[0012] In some embodiments of the present application, the reflux pipeline assembly includes a reflux pipe and a circulation pipeline. The inlet end of the circulation pipeline is communicated with the liquid outlet, and the outlet end is communicated with the inlet of the reflux pipe. The outlet of the reflux pipe is communicated with an electric pump. The circulation pipeline is a bent pipeline that reciprocates up and down multiple times.

[0013] In some embodiments of the present application, the filtering mechanism includes a first filter element and a second filter element movably arranged in the circulation pipeline, and a compression filtering assembly arranged in the reflux pipe. The first filter element and the second filter element are respectively used to filter impurities in the circulation pipeline. The compression filtering assembly is used to filter impurities in the reflux pipe. The first filter element is located above the second filter element. Compression springs are provided between the first filter element and the second filter element, and between the second filter element and the bottom wall of the circulation pipeline.

[0014] In some embodiments of the present application, the compression filtering assembly includes a third filter element, a fourth filter element, an extrusion member, a limiting baffle arranged in the reflux pipe, an adjusting member penetrating through the side wall of the reflux pipe, and a mounting cylinder arranged on the outer wall of the reflux pipe. The third filter element and the fourth filter element are spaced apart in the reflux pipe. The third filter element and the fourth filter element and the side wall of the reflux pipe enclose a filtering cavity in the reflux pipe. The filtering cavity is used to hold a compressible filtering substance. The adjusting member is threadedly connected to a preset threaded hole on the side wall of the reflux pipe. The first end of the adjusting member located in the reflux pipe is connected to the extrusion member. There are two limiting baffles. The two limiting baffles are spaced apart in the filtering cavity and are used to limit and guide both sides of the extrusion member. The adjusting member is used to drive the extrusion member to compress or release the elastic filtering substance in the filtering cavity during the process of screwing into and out of the threaded hole on the reflux pipe, so as to delay or accelerate the filtering rate of the elastic filtering substance for the liquid in the reflux pipe.

[0015] In some embodiments of the present application, the gantry includes two vertical rods and a cross beam disposed at the tops of the two vertical rods. The Y-axis driving mechanism is slidably disposed on the cross beam. The X-axis driving mechanism is fixedly disposed at one end of the cross beam. The X-axis driving mechanism is connected to the Y-axis driving mechanism and is used to drive the Y-axis driving mechanism to reciprocate along the cross beam. The Y-axis driving mechanism includes a mounting bracket, a Y-axis cylinder, a rotary motor, and a sliding limiting member. The sliding limiting member is slidably disposed on the cross beam. The mounting bracket is disposed on the sliding limiting member. The sliding limiting member is connected to the X-axis driving mechanism. The Y-axis cylinder is disposed on the mounting bracket. The piston rod of the Y-axis cylinder vertically downward is connected to the rotary motor. The output shaft of the rotary motor is connected to the tool. A limiting groove is formed on the cross beam. A clamping and limiting mechanism is slidably disposed in the limiting groove. The clamping and limiting mechanism is connected to the sliding limiting member and is used to lock the sliding limiting member and the Y-axis driving mechanism when the sliding limiting member stops moving.

[0016] In some embodiments of the present application, the clamping and limiting mechanism includes a micro motor, a pushing assembly, a second guiding rod, a sliding ring, and an expanding member. The micro motor is disposed on the sliding limiting member. A limiting rod is horizontally disposed in the limiting groove. The sliding ring is sleeved on the limiting rod. There are two expanding members. The first ends of the two expanding members are respectively and spacedly connected to the outer ring of the sliding ring. The first end of the second guiding rod is connected to the outer ring of the sliding ring and is located between the expanding members on both sides. The first end of the pushing assembly is sleeved on the second end of the second guiding rod. The second end of the pushing assembly is connected to the micro motor. The micro motor is used to drive the pushing assembly to move towards the sliding ring direction to squeeze and expand the expanding members through the pushing assembly and make the expanding members tightly adhere to the side wall of the limiting groove.

[0017] In some embodiments of the present application, the pushing assembly includes a mounting plate, a lead screw, a first guiding rod, and a pushing member. The lead screw is connected to the output shaft of the micro motor. The mounting plate is sleeved on the lead screw and is threadedly connected to the lead screw. The first end of the first guiding rod is connected to the sliding limiting member. The second end of the first guiding rod passes through a preset through hole on the mounting plate. The first end of the pushing member is connected to the side wall of the mounting plate. A limiting counterbore is formed at the second end of the pushing member. The second guiding rod is used to slidably pass through the limiting counterbore and limit the pushing member.

[0018] The present application has the following beneficial effects: In a multi-functional gantry turning-milling compound machine tool of the present application, a Y-axis driving mechanism and an X-axis driving mechanism on the gantry drive a cutting tool to move in the Y-axis and X-axis directions respectively. A workbench under the gantry supports a three-jaw chuck, and the three-jaw chuck is driven by a stepping motor to rotate. The three-jaw chuck is used to clamp a part to be machined. Subsequently, a cutting fluid spraying mechanism sprays cutting fluid onto the cutting tool and the part to be machined. A table through-hole is provided on the tabletop of the workbench, and a liquid storage frame is arranged below the table through-hole. The cutting fluid with impurities is collected and temporarily stored through the liquid storage frame. The liquid storage frame is connected to an electric pump through a reflux pipeline assembly. The electric pump is connected to a cutting fluid spray head through an outlet pipe. A filtering mechanism for filtering impurities of the cutting fluid is arranged in the reflux pipeline assembly, so as to realize that the filtered cutting fluid is re-transported to the cutting fluid spray head through the electric pump and the outlet pipe for recycling, greatly reducing the use cost of the cutting fluid, being beneficial to cost reduction and efficiency increase, improving the economic benefit of the enterprise, and not requiring additional laying of cutting fluid conveying pipelines, being beneficial to optimizing the workshop space.

[0019] Of course, it is not necessary for any product implementing the present application to achieve all the above advantages simultaneously. In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present application in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the present application; Figure 2 is a schematic diagram of the installation of a cutting fluid spray head of a preferred embodiment of the present application; Figure 3 is a schematic diagram of the installation of a limit cover of a preferred embodiment of the present application; Figure 4 is a schematic diagram of the structure of a second retaining ring of a preferred embodiment of the present application; Figure 5 is a schematic diagram of the installation of a three-jaw chuck of a preferred embodiment of the present application; Figure 6 is a schematic diagram of the positions of a first filter element and a second filter element of a preferred embodiment of the present application; Figure 7 is a schematic diagram of the structure inside a filter chamber of a preferred embodiment of the present application; Figure 8 is a schematic diagram of the position of a limit rod of a preferred embodiment of the present application; Figure 9 is a schematic diagram of the structure of an expansion member of a preferred embodiment of the present application; Figure 10 Schematic diagram of the installation of the pusher in the preferred embodiment of the present application; Figure 11 Schematic diagram of the structure of the pusher in the preferred embodiment of the present application; Legend: 1. Gantry; 11. Vertical rod; 12. Cross beam; 121. Limit groove; 122. Limit rod; 2. Y-axis drive mechanism; 21. Mounting frame; 22. Y-axis cylinder; 23. Rotary motor; 24. Sliding limit member; 25. Tool; 241. Limit horizontal plate; 242. Limit vertical plate; 3. X-axis drive mechanism; 4. Cutting fluid spraying mechanism; 41. Cutting fluid nozzle; 42. Elastic tube; 43. Liquid outlet pipe; 44. Electric pump; 45. Return pipe; 46. Circulation pipeline; 47. Hoop; 5. Three-jaw chuck; 51. First retaining ring; 6. Workbench; 61. Table through hole; 62. Second retaining ring; 63. Limit cover; 64. Stepper motor; 65. Support frame; 7. Liquid storage frame; 71. Discharge slag door; 72. Liquid outlet; 8. Filter mechanism; 81. First filter element; 82. Second filter element; 83. Compression spring; 84. Handle; 85. Third filter element; 86. Fourth filter element; 87. Filter cavity; 88. Extrusion member; 89. Limit baffle; 810. Adjusting member; 811. Mounting cylinder; 812. Maintenance window; 9. Clamping limit mechanism; 91. Micro motor; 92. Mounting plate; 93. Lead screw; 94. First guide rod; 95. Pusher; 96. Second guide rod; 97. Slip ring; 98. Expanding member; 981. Diagonal support part; 982. Flat plate part. Detailed implementation manners

[0021] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in many different ways defined and covered by the following.

[0022] Figure 1 Schematic diagram of the overall structure in the preferred embodiment of the present application; Figure 2 Schematic diagram of the installation of the cutting fluid nozzle in the preferred embodiment of the present application; Figure 3 Schematic diagram of the installation of the limit cover in the preferred embodiment of the present application; Figure 4 Schematic diagram of the structure of the second retaining ring in the preferred embodiment of the present application; Figure 5 Schematic diagram of the installation of the three-jaw chuck in the preferred embodiment of the present application; Figure 6 Schematic diagram of the positions of the first filter element and the second filter element in the preferred embodiment of the present application; Figure 7 Schematic diagram of the structure inside the filter cavity in the preferred embodiment of the present application; Figure 8 Schematic diagram of the position of the limit rod in the preferred embodiment of the present application; Figure 9 Schematic diagram of the structure of the expanding member in the preferred embodiment of the present application; Figure 10It is a schematic installation diagram of the driving part in the preferred embodiment of the present application; Figure 11 It is a schematic structural diagram of the driving part in the preferred embodiment of the present application.

[0023] A multi-functional gantry turning-milling composite machine tool includes a gantry 1, a workbench 6, a three-jaw chuck 5 and a tool 25, as well as a Y-axis driving mechanism 2 and an X-axis driving mechanism 3 provided on the gantry 1 and respectively used to drive the tool 25 to move in the Y-axis direction and the X-axis direction. The multi-functional gantry turning-milling composite machine tool further includes a cutting fluid spraying mechanism 4. The cutting fluid spraying mechanism 4 includes a cutting fluid spray head 41, a liquid outlet pipe 43, an electric pump 44 and a return pipe assembly. The cutting fluid spray head 41 is installed on the Y-axis driving mechanism 2, and the cutting fluid spray head 41 is used to spray cutting fluid onto the tool 25 and the workpiece to be machined on the three-jaw chuck 5; The workbench 6 is supported below the gantry 1. A table through hole 61 is provided on the table surface of the workbench 6. A stepping motor 64 is installed at the table through hole 61. The output shaft of the stepping motor 64 vertically upward is connected to the three-jaw chuck 5. The stepping motor 64 is used to drive the three-jaw chuck 5 and the workpiece to be machined to rotate. A liquid storage frame 7 is arranged at the bottom of the table surface of the workbench 6. The liquid storage frame 7 is used to receive the cutting fluid flowing down from the table through hole 61. An outlet 72 is provided on one side of the liquid storage frame 7. The outlet 72 is connected to the electric pump 44 through the return pipe assembly. A filtering mechanism 8 is arranged in the return pipe assembly. The filtering mechanism 8 is used to filter the impurities in the cutting fluid in the return pipe assembly. The liquid outlet end of the electric pump 44 is connected to the liquid outlet pipe 43. The liquid outlet pipe 43 is connected to the cutting fluid spray head 41. The liquid outlet pipe 43 is used to convey the filtered cutting fluid to the cutting fluid spray head 41.

[0024] The meaning of "cutting fluid spray head 41" here refers to a spray head installed on the Y-axis driving mechanism 2 that can always spray cutting fluid onto the tool 25 and the workpiece to be machined on the three-jaw chuck 5. In some embodiments, an electromagnetic valve is provided on the cutting fluid spray head 41. The cutting fluid spray head 41 is communicated with the liquid outlet pipe 43 through an elastic pipe 42 to facilitate the adjustment of the position of the cutting fluid spray head 41. The liquid outlet pipe 43 can be connected to the cross beam 12 of the gantry 1 through a hoop 47 to realize the stable installation of the liquid outlet pipe 43.

[0025] In this application, the Y-axis drive mechanism 2 and the X-axis drive mechanism 3 on the gantry 1 drive the tool 25 to move in the Y-axis and X-axis directions respectively. The workbench 6 under the gantry 1 supports the three-jaw chuck 5, and the three-jaw chuck 5 is driven to rotate by the stepping motor 64. The three-jaw chuck 5 is used to clamp the parts to be machined. Subsequently, the cutting fluid spraying mechanism 4 sprays cutting fluid onto the tool and the parts to be machined. A table through-hole 61 is provided on the tabletop of the workbench 6, and a liquid storage frame 7 is arranged below the table through-hole 61. The cutting fluid with impurities is collected and temporarily stored through the liquid storage frame 7. The liquid storage frame 7 is connected to the electric pump 44 through a return pipeline assembly. The electric pump 44 is connected to the cutting fluid nozzle 41 through an outlet pipe 43. A filtering mechanism 8 for filtering the impurities of the cutting fluid is arranged in the return pipeline assembly, so as to realize that the filtered cutting fluid is re-transported to the cutting fluid nozzle 41 through the electric pump 44 and the outlet pipe 43 for recycling, greatly reducing the use cost of the cutting fluid, being beneficial to cost reduction and efficiency improvement, improving the economic benefits of the enterprise, and without the need to lay additional cutting fluid conveying pipelines, which is beneficial to optimizing the workshop space.

[0026] Preferably, as shown in Figure 5 、 6 A support frame 65 is provided at the table through-hole 61. The support frame 65 is used to support and fix the stepping motor 64. A limit cover 63 is arranged on the support frame 65. The limit cover 63 is used to cover and protect the stepping motor 64. The output shaft of the stepping motor 64 passes through a preset bearing on the top plate of the limit cover 63 and is connected to the three-jaw chuck 5. There is a gap between the outer periphery of the limit cover 63 and the table through-hole 61.

[0027] It can be understood that the limit cover 63 can shield and protect the stepping motor 64 to prevent the cutting fluid flowing down from the three-jaw chuck 5 from contaminating and affecting the stepping motor 64. The limit cover 63 can also play a guiding role in the flowing-down cutting fluid, so that the cutting fluid can conveniently flow along the outer wall of the limit cover 63 to the table through-hole 61 and finally flow into the liquid storage frame 7 through the table through-hole 61.

[0028] Optionally, the limit cover 63 is a cylindrical cover structure that is wider at the top and narrower at the bottom. The bearing on the top plate of the limit cover is a sealed bearing to prevent the cutting fluid from easily flowing into the limit cover 63 through the gap on the top plate of the limit cover 63.

[0029] Preferably, as shown in Figure 5 、 6 A second retaining ring 62 is arranged on the upper part of the tabletop of the workbench 6 outside the table through-hole 61. The second retaining ring 62 is used to shield the three-jaw chuck 5 to prevent the liquid splashed on the three-jaw chuck 5 from sliding down along the inner wall of the second retaining ring 62 into the table through-hole 61; a plurality of liquid outlet through-holes are arranged at intervals on the three-jaw chuck 5, and a first retaining ring 51 is arranged at the bottom of the three-jaw chuck 5. The first retaining ring 51 is used to shield the output shaft of the stepping motor 64.

[0030] It is understandable that the second retaining ring 62 serves to block the splashing liquid on the three-jaw chuck 5, and at the same time can guide the splashed liquid into the table through-hole 61 so that the liquid storage frame 7 can collect it centrally. The first retaining ring 51 further shields and protects the output shaft of the stepping motor 64 protruding from the top plate of the limit cover 63, so that the cutting fluid flowing down from the three-jaw chuck 5 flows down along the outer wall of the first retaining ring 51 to the outer wall of the limit cover 63.

[0031] Optionally, the second retaining ring 62 is an open annular structure with a wider upper part and a narrower lower part, while the first retaining ring 51 is an annular structure with a narrower upper part and a wider lower part. Specifically, there is no liquid outlet through-hole in the middle of the three-jaw chuck 5, and a plurality of liquid outlet through-holes are arranged at intervals on the outside of the first retaining ring 51, so that the cutting fluid on the three-jaw chuck 5 can smoothly flow to the outer wall of the first retaining ring 51.

[0032] Preferably, as shown in Figure 5 the bottom plate of the liquid storage frame 7 is an inclined plate structure and slopes upward towards the liquid outlet 72, and a slag discharge door 71 is provided on the side wall of the liquid storage frame 7 opposite to the liquid outlet 72.

[0033] It is understandable that when the cutting fluid with debris and impurities flows into the liquid storage frame 7, the impurities will deposit in the liquid storage frame 7. The upper part of the liquid in the liquid storage frame 7 is clear liquid. Since the position of the liquid outlet 72 is relatively high, the upper clear liquid will overflow through the liquid outlet 72 first, achieving a preliminary sedimentation and filtration effect. At the same time, the setting of the slag discharge door 71 facilitates the cleaning of the deposited impurities.

[0034] Preferably, as shown in Figure 3 、 5 、6, the return pipeline assembly includes a return pipe 45 and a circulation pipeline 46. The inlet end of the circulation pipeline 46 is communicated with the liquid outlet 72, and the outlet end is communicated with the inlet of the return pipe 45. The outlet of the return pipe is communicated with the electric pump 44. The circulation pipeline 46 is a bent pipeline that repeatedly changes direction up and down.

[0035] In this preferred embodiment, the filtering mechanism 8 includes a first filtering element 81 and a second filtering element 82 movably arranged in the circulation pipeline 46, and a compression filtering assembly arranged in the return pipe 45. The first filtering element 81 and the second filtering element 82 are respectively used to filter the impurities in the circulation pipeline 46, and the compression filtering assembly is used to filter the impurities in the return pipe 45. The first filtering element 81 is located above the second filtering element 82, and compression springs 83 are arranged between the first filtering element 81 and the second filtering element 82 and between the second filtering element 82 and the bottom wall of the circulation pipeline 46.

[0036] It can be understood that the first filter element 81 and the second filter element 82 can filter the liquid in the circulation pipeline 46 multiple times. Both the first filter element 81 and the second filter element 82 are movably arranged and are connected to each other by a compression spring 83. The second filter element 82 is also connected to the bottom wall of the circulation pipeline 46 by the compression spring 83. When the first filter element 81 and the second filter element 82 are impacted, they will float up and down to more fully block and screen the impurities in the liquid, and can effectively avoid the phenomenon that the first filter element 81 and the second filter element 82 are easily blocked, which is beneficial to improving the filtering effect and maintaining the continuous filtering function.

[0037] Optionally, both the first filter element 81 and the second filter element 82 are of a mesh plate structure, and multiple groups of the first filter element 81 and the second filter element 82 can be arranged in the circulation pipeline 46 to achieve a multiple filtering effect.

[0038] In some embodiments, the first filter element 81 and the second filter element 82 are of a mesh plate structure and are connected to the plug plate by springs. After the plug plate is inserted into the installation hole preset on the side wall of the circulation pipeline 46, it is fixedly connected to the circulation pipeline 46 by bolts, and the mesh plate can be conveniently taken out through the plug plate for cleaning.

[0039] Preferably, please refer to Figure 6 、 7 As shown, the compression filtering assembly includes a third filter element 85, a fourth filter element 86, an extrusion member 88, a limit baffle 89 arranged in the return pipe 45, an adjusting member 810 penetrating through the side wall of the return pipe 45, and an installation cylinder 811 arranged on the outer wall of the return pipe 45. The third filter element 85 and the fourth filter element 86 are arranged at intervals in the return pipe 45. The third filter element 85 and the fourth filter element 86 and the side wall of the return pipe 45 enclose a filtering cavity 87 in the return pipe 45. The filtering cavity 87 is used to hold a compressible filtering substance. The adjusting member 810 is threadedly connected to a threaded hole preset on the side wall of the return pipe 45. The first end of the adjusting member 810 located inside the return pipe 45 is connected to the extrusion member 88. There are two limit baffles 89, and the two limit baffles 89 are arranged at intervals in the filtering cavity 87 and are used to limit and guide both sides of the extrusion member 88. The adjusting member 810 is used to drive the extrusion member 88 to compress or release the elastic filtering substance in the filtering cavity 87 during the process of screwing into and out of the threaded hole on the return pipe 45, so as to delay or accelerate the filtering rate of the elastic filtering substance to the liquid in the return pipe 45.

[0040] It can be understood that by pushing the extrusion member 88 through the adjusting member 810 to move along the limiting channels formed by the limiting baffles 89 on both sides, the elastic filtering substance in the filtering cavity 87 can be extruded or released by the extrusion member 88, so as to delay or accelerate the filtering rate of the elastic filtering substance for the liquid in the return pipe 45, adapt to different filtering working conditions, ensure the cleanliness of the cutting fluid entering the electric pump 44, and at the same time balance the filtering speed and ensure the supply of the cutting fluid flow rate.

[0041] It should be noted that the stroke of the extrusion member 88 does not deviate from the limiting baffle 89 to ensure that the limiting baffle 89 can always guide the extrusion member 88, and a sealing effect is formed between the extrusion member 88 and the limiting baffles 89 on both sides. Coupled with the threaded connection between the adjusting member 810 and the return pipe 45, a multiple sealing effect can be achieved.

[0042] Here, the "elastic filtering substance" can be a flexible substance such as a sponge block with elasticity and filtering performance.

[0043] Optionally, a handle 84 is provided at the second end of the adjusting member 810 outside the return pipe 45, which is convenient for driving the adjusting member 810 to rotate through the handle 84.

[0044] Preferably, please refer to Figure 1 、 8 As shown in FIGS. 9, 10, and 11, the gantry 1 includes two vertical rods 11 and a cross beam 12 provided at the tops of the two vertical rods 11. The Y-axis driving mechanism 2 is slidably provided on the cross beam 12. The X-axis driving mechanism 3 is fixedly provided at one end of the cross beam 12. The X-axis driving mechanism 3 is connected to the Y-axis driving mechanism 2. The X-axis driving mechanism 3 is used to drive the Y-axis driving mechanism 2 to reciprocate along the cross beam 12. The Y-axis driving mechanism 2 includes a mounting frame 21, a Y-axis cylinder 22, a rotating motor 23, and a sliding limiting member 24. The sliding limiting member 24 is slidably provided on the cross beam 12. The mounting frame 21 is provided on the sliding limiting member 24. The sliding limiting member 24 is connected to the X-axis driving mechanism 3. The Y-axis cylinder 22 is provided on the mounting frame 21. The piston rod of the Y-axis cylinder 22 vertically downward is connected to the rotating motor 23. The output shaft of the rotating motor 23 is connected to the tool 25. A limiting groove 121 is formed on the cross beam 12. A clamping and limiting mechanism 9 is slidably provided in the limiting groove 121. The clamping and limiting mechanism 9 is connected to the sliding limiting member 24. The clamping and limiting mechanism 9 is used to lock the sliding limiting member 24 and the Y-axis driving mechanism 2 when the sliding limiting member 24 stops moving.

[0045] It can be understood that the Y-axis driving mechanism 2 and the tool 25 can be driven by the X-axis driving mechanism 3 to move in the X-axis direction, and the Y-axis cylinder 22 can drive the tool 25 to move in the Y-axis direction. At the same time, the rotating motor 23 can also drive the tool 25 to rotate to meet different processing requirements. The clamping and limiting mechanism 9 can enhance the stability of the limit locking when the Y-axis driving mechanism 2 stops. Since the tool 25 is installed on the Y-axis driving mechanism 2, various vibrations can be reduced, and the influence on the tool 25 can be reduced, and the offset phenomenon of the tool 25 can be reduced.

[0046] Preferably, please refer to Figures 8 - 11 , the clamping and limiting mechanism 9 includes a micro-motor 91, a pushing component, a second guide rod 96, a slip ring 97 and an expansion member 98. The micro-motor 91 is arranged on the sliding limiting member 24. A limiting rod 122 is horizontally arranged in the limiting groove 121. The slip ring 97 is sleeved on the limiting rod 122. There are two expansion members 98. The first ends of the two expansion members 98 are respectively and spacedly connected to the outer ring of the slip ring 97. The first end of the second guide rod 96 is connected to the outer ring of the slip ring 97 and is located between the two expansion members 98 on both sides. The first end of the pushing component is sleeved on the second end of the second guide rod 96, and the second end of the pushing component is connected to the micro-motor 91. The micro-motor 91 is used to drive the pushing component to move towards the slip ring 97 direction to squeeze and expand the expansion member 98 through the pushing component, and make the expansion member 98 tightly adhere to the side wall of the limiting groove 121.

[0047] In this preferred embodiment, the pushing component includes a mounting plate 92, a lead screw 93, a first guide rod 94 and a pushing member 95. The lead screw 93 is connected to the output shaft of the micro-motor 91. The mounting plate 92 is sleeved on the lead screw 93 and is threadedly connected to the lead screw 93. The first end of the first guide rod 94 is connected to the sliding limiting member 24. The second end of the first guide rod 94 passes through a preset through hole on the mounting plate 92. The first end of the pushing member 95 is connected to the side wall of the mounting plate 92. A limiting counterbore is provided at the second end of the pushing member 95. The second guide rod 96 is used to slidably pass through the limiting counterbore to limit the pushing member 95.

[0048] It can be understood that when the Y-axis driving mechanism 2 stops moving, the micro-motor 91 drives the lead screw 93 to rotate. The mounting plate 92 on the lead screw 93 moves along the first guide rod 94. When the mounting plate 92 drives the pushing member 95 to move towards the slip ring 97, the pushing member 95 will squeeze and expand the expansion member 98, so that the expansion member 98 abuts against the side wall of the limiting groove 121, thereby realizing the function of strengthening the locking limit of the sliding limiting member 24 and the Y-axis driving mechanism 2. It is beneficial to reduce the influence of vibrations on the tool 25 in the working state where the Y-axis driving mechanism 2 does not need to move horizontally, reduce the position offset of the tool 25, and is beneficial to improve the machining accuracy and quality.

[0049] Optionally, the expansion member 98 includes a brace portion 981 and a flat plate portion 982. The first end of the brace portion 981 is connected to the outer ring of the slip ring 97. The brace portion 981 is inclined with respect to the top wall and the bottom wall of the limit groove 121. The second end of the brace portion 981 is connected to the flat plate portion 982. The flat plate portion 982 is parallel to the top wall and the bottom wall of the limit groove 121. An anti-slip pad is provided on the surface of the flat plate portion 982 that contacts the limit groove 121.

[0050] Optionally, the sliding limit member 24 includes a limit cross plate 241 and a limit vertical plate 242. The limit cross plate 241 is disposed on the limit vertical plate 242. The limit cross plate 241 is slidably connected to the top surface of the cross beam 12. The micro motor 91 is disposed on the limit vertical plate 242.

[0051] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0052] In this article, specific examples are used to elaborate on the principles and implementation manners of the present application. The description of the above examples is only used to help understand the method and its core idea of the present application. The above is only the preferred implementation manner of the present application. It should be pointed out that due to the limited nature of literal expression, and objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements, modifications or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or directly applying the inventive concept and technical solution to other occasions without improvement, should all be regarded as the protection scope of the present application.

Claims

1. A multi-functional gantry turning-milling compound machine tool, comprising a gantry (1), a workbench (6), a three-jaw chuck (5) and a tool (25), and a Y-axis driving mechanism (2) and an X-axis driving mechanism (3) provided on the gantry (1) for driving the tool (25) to move in the Y-axis direction and the X-axis direction respectively, characterized in that, The multi-functional gantry turning-milling compound machine tool further includes a cutting fluid spraying mechanism (4). The cutting fluid spraying mechanism (4) includes a cutting fluid nozzle (41), a liquid outlet pipe (43), an electric pump (44) and a return pipeline assembly. The cutting fluid nozzle (41) is installed on the Y-axis driving mechanism (2), and the cutting fluid nozzle (41) is used to spray cutting fluid onto the tool (25) and the workpiece to be machined on the three-jaw chuck (5). The workbench (6) is supported under the gantry (1). A table through-hole (61) is formed in the tabletop of the workbench (6). A stepping motor (64) is installed at the table through-hole (61). The output shaft of the stepping motor (64) extending vertically upward is connected to the three-jaw chuck (5). The stepping motor (64) is used to drive the three-jaw chuck (5) and the workpiece to be machined to rotate. A liquid storage frame (7) is arranged at the bottom of the tabletop of the workbench (6). The liquid storage frame (7) is used to receive the cutting fluid flowing down from the table through-hole (61). An outlet (72) is formed on one side of the liquid storage frame (7). The outlet (72) is connected to the electric pump (44) through the return pipeline assembly. A filtering mechanism (8) is arranged in the return pipeline assembly. The filtering mechanism (8) is used to filter the impurities in the cutting fluid in the return pipeline assembly. The liquid outlet end of the electric pump (44) is connected to the liquid outlet pipe (43). The liquid outlet pipe (43) is connected to the cutting fluid nozzle (41). The liquid outlet pipe (43) is used to convey the filtered cutting fluid to the cutting fluid nozzle (41).

2. The multi-functional gantry turning and milling compound machine tool according to claim 1, characterized in that, A support frame (65) is supported at the table through-hole (61). The support frame (65) is used to support and fix the stepping motor (64). A limit cover (63) is arranged on the support frame (65). The limit cover (63) is used to cover and protect the stepping motor (64). The output shaft of the stepping motor (64) passes through a preset bearing on the top plate of the limit cover (63) and is then connected to the three-jaw chuck (5). There is a gap between the outer periphery of the limit cover (63) and the table through-hole (61).

3. A multi-functional gantry turning-milling composite machine tool according to claim 2, characterized in that, A second retaining ring (62) is arranged on the upper part of the tabletop of the workbench (6) outside the table through-hole (61). The second retaining ring (62) is used to shield the three-jaw chuck (5) to prevent the liquid splashed on the three-jaw chuck (5) from sliding down along the inner wall of the second retaining ring (62) into the table through-hole (61). A plurality of liquid outlet through-holes are arranged at intervals on the three-jaw chuck (5). A first retaining ring (51) is arranged at the bottom of the three-jaw chuck (5). The first retaining ring (51) is used to shield the output shaft of the stepping motor (64).

4. A multi-functional gantry turning-milling composite machine tool according to claim 1, characterized in that, The bottom plate of the liquid storage frame (7) is of an inclined plate structure and slopes upward in the direction of the outlet (72). A slag discharge door (71) is arranged on the side wall of the liquid storage frame (7) opposite to the outlet (72).

5. A multi-functional gantry turning and milling compound machine tool according to claim 1, characterized in that, The return pipeline assembly includes a return pipe (45) and a circulation pipeline (46). The inlet end of the circulation pipeline (46) is communicated with the outlet (72), and the outlet end is communicated with the inlet of the return pipe (45). The outlet of the return pipe (45) is communicated with the electric pump (44). The circulation pipeline (46) is a bent pipeline that repeatedly changes direction up and down multiple times.

6. The multi-functional gantry turning and milling compound machine tool according to claim 5, characterized in that, The filtering mechanism (8) includes a first filter element (81) and a second filter element (82) movably arranged in the circulation pipeline (46), and a compression filtering assembly arranged in the return pipe (45). The first filter element (81) and the second filter element (82) are respectively used for filtering impurities in the circulation pipeline (46), and the compression filtering assembly is used for filtering impurities in the return pipe (45). The first filter element (81) is located above the second filter element (82), and compression springs (83) are arranged between the first filter element (81) and the second filter element (82), and between the second filter element (82) and the bottom wall of the circulation pipeline (46).

7. A multi-functional gantry turning-milling composite machine tool according to claim 6, characterized in that, The compression filtering assembly includes a third filter element (85), a fourth filter element (86), an extrusion member (88), a limit baffle (89) arranged in the return pipe (45), an adjusting member (810) penetrating through the side wall of the return pipe (45), and a mounting cylinder (811) arranged on the outer wall of the return pipe (45). The third filter element (85) and the fourth filter element (86) are arranged at intervals in the return pipe (45). The third filter element (85) and the fourth filter element (86) and the side wall of the return pipe (45) enclose a filtering cavity (87) in the return pipe (45). The filtering cavity (87) is used for containing compressible filtering substances. The adjusting member (810) is threadedly connected to a preset threaded hole on the side wall of the return pipe (45). The first end of the adjusting member (810) located in the return pipe (45) is connected to the extrusion member (88). There are two limit baffles (89), and the two limit baffles (89) are arranged at intervals in the filtering cavity (87) and are used for limiting and guiding the two sides of the extrusion member (88). The adjusting member (810) is used for driving the extrusion member (88) to compress or release the elastic filtering substances in the filtering cavity (87) during the process of screwing into and out of the threaded hole on the return pipe (45), so as to delay or accelerate the filtering rate of the elastic filtering substances for the liquid in the return pipe (45).

8. A multi-functional gantry turning-milling compound machine tool according to claim 1, characterized in that The gantry (1) includes two vertical rods (11) and a cross beam (12) arranged at the tops of the two vertical rods (11). The Y-axis drive mechanism (2) is slidably arranged on the cross beam (12). The X-axis drive mechanism (3) is fixedly arranged at one end of the cross beam (12). The X-axis drive mechanism (3) is connected to the Y-axis drive mechanism (2) and is used to drive the Y-axis drive mechanism (2) to reciprocate along the cross beam (12). The Y-axis drive mechanism (2) includes a mounting frame (21), a Y-axis cylinder (22), a rotary motor (23) and a sliding limit member (24). The sliding limit member (24) is slidably arranged on the cross beam (12). The mounting frame (21) is arranged on the sliding limit member (24). The sliding limit member (24) is connected to the X-axis drive mechanism (3). The Y-axis cylinder (22) is arranged on the mounting frame (21). The piston rod of the Y-axis cylinder (22) vertically downward is connected to the rotary motor (23). The output shaft of the rotary motor (23) is connected to the cutter (25). A limit groove (121) is formed on the cross beam (12). A clamping and limiting mechanism (9) is slidably arranged in the limit groove (121). The clamping and limiting mechanism (9) is connected to the sliding limit member (24) and is used to lock the sliding limit member (24) and the Y-axis drive mechanism (2) when the sliding limit member (24) stops moving.

9. A multi-functional gantry turning-milling compound machine tool according to claim 8, characterized in that, The clamping and limiting mechanism (9) includes a micro motor (91), a pushing component, a second guide rod (96), a sliding ring (97) and an expanding member (98). The micro motor (91) is arranged on the sliding limit member (24). A limit rod (122) is horizontally arranged in the limit groove (121). The sliding ring (97) is sleeved on the limit rod (122). There are two expanding members (98). The first ends of the two expanding members (98) are respectively and spacedly connected to the outer ring of the sliding ring (97). The first end of the second guide rod (96) is connected to the outer ring of the sliding ring (97) and is located between the expanding members (98) on both sides. The first end of the pushing component is sleeved on the second end of the second guide rod (96). The second end of the pushing component is connected to the micro motor (91). The micro motor (91) is used to drive the pushing component to move towards the sliding ring (97) direction to squeeze and expand the expanding member (98) through the pushing component and make the expanding member (98) stick to the side wall of the limit groove (121).

10. A multi-functional gantry turning-milling compound machine tool according to claim 9, characterized in that, The pushing component includes a mounting plate (92), a lead screw (93), a first guide rod (94) and a pushing member (95). The lead screw (93) is connected to the output shaft of the micro motor (91). The mounting plate (92) is sleeved on the lead screw (93) and is threadedly connected to the lead screw (93). The first end of the first guide rod (94) is connected to the sliding limit member (24). The second end of the first guide rod (94) passes through a preset through hole on the mounting plate (92). The first end of the pushing member (95) is connected to the side wall of the mounting plate (92). A limit counterbore is formed at the second end of the pushing member (95). The second guide rod (96) is used to slidably pass through the limit counterbore to limit the pushing member (95).

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