A hole processing device for lubricating pump production

Abstract

The application discloses a hole processing device for lubricating pump production and relates to the technical field of lubricating pump processing. The device comprises a machine tool, a screw slide, a drill rod mechanism and a workbench are arranged in the machine tool, a rotary table is arranged on the workbench in a rotary mode, a driving mechanism for driving the rotary table to rotate is arranged at the bottom of the workbench, a groove is arranged at the central axis of the top of the rotary table, a fixing mechanism for fixing the pump body, two lifting mechanisms for driving the fixing mechanism to lift and a cooling mechanism for cooling the cutter are arranged on the rotary table. The pump body can be tightly pressed in the groove through the cooperation of the fixing mechanism and the two lifting mechanisms. The pump body can be fixed, and displacement or shaking of the pump body during processing can be effectively prevented. The cutter and the processing position can be cooled in time when the pump body is processed through the cooling mechanism. The processing temperature is reduced, thermal deformation caused by high temperature is reduced, the processing precision is improved, and the processing quality of the hole is ensured.

Description

Technical Field

[0001] This invention relates to the field of lubrication pump processing technology, and more specifically to a hole processing device for lubrication pump production. Background Technology

[0002] A lubrication pump is a lubrication device that supplies lubricant to the lubrication points of mechanical equipment. Traditional lubrication primarily relies on adjusting the lubrication according to the equipment's operating conditions, such as manually applying grease after a certain maintenance cycle. Lubrication pumps simplify this maintenance process. Currently, the cylinder body of a lubrication pump is typically manufactured using injection molding, die casting, investment casting, or sand casting. Common lubrication pump cylinder bodies are cylindrical with a central shaft hole. The top and bottom edges of the pump body have disc-shaped protrusions, and the bottom or side walls of the pump body also have inlet holes, outlet holes, and return holes. All holes on the pump body blank require subsequent precision machining to ensure accuracy, smoothness, and geometric shape.

[0003] Current technology for precision machining of lubrication pump bodies typically employs a multi-stage, decentralized machining approach. This involves first rough machining the pump body, followed by precision machining of the shaft hole, oil inlet hole, oil outlet hole, and oil return hole using different machine tools and cutting tools. This results in high equipment and tooling costs. Furthermore, the machining process requires multiple clamping and positioning of the pump body, which can easily lead to positioning errors, affecting the machining accuracy and coaxiality of the holes. In addition, if burrs and accumulated chips are not promptly removed during hole machining (shaft hole, oil outlet hole, etc.), they can not only clog the holes but also interfere with subsequent machining processes, impacting the overall machining quality. Summary of the Invention

[0004] The purpose of this invention is to provide a hole-machining apparatus for the production of lubrication pumps, so as to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: A hole-machining device for producing a lubricating pump includes a machine tool. The machine tool is equipped with a lead screw slide, a drill rod mechanism, and a worktable. A turntable is rotatably mounted on the worktable. A drive mechanism for rotating the turntable is mounted on the bottom of the worktable. A groove is formed at the central axis of the top of the turntable. The turntable is equipped with a fixing mechanism for fixing the pump body, two lifting mechanisms for driving the fixing mechanism to rise and fall, and a cooling mechanism for cooling the cutting tool. The fixing mechanism includes two arc-shaped positioning components symmetrically arranged above the groove. The two lifting mechanisms are symmetrically arranged on both sides of the top of the turntable. The opposite sides of the two arc-shaped positioning components are detachably connected to the output ends of the two lifting mechanisms. The cooling mechanism includes multiple spraying components for spraying cutting fluid onto the cutting tool. Multiple slots are evenly formed on the inner sides of the two arc-shaped positioning components. The multiple spraying components are respectively installed in the multiple slots, and the output ends of the multiple spraying components are all inclined downwards.

[0006] In a preferred embodiment of the present invention, the turntable has an annular cavity inside, and an annular partition plate is provided inside the annular cavity, which divides the annular cavity into cavity one and cavity two. Multiple sets of through holes communicating with the annular cavity are evenly distributed along the circumferential direction at the bottom of the groove. Cavity two communicates with the multiple sets of through holes. A circulation pump is installed inside cavity one, and the input end of the circulation pump passes through the annular partition plate and communicates with cavity two. The output end of the circulation pump is connected to a first corrugated pipe. A filter screen is horizontally arranged inside cavity two, and the filter screen is located above the input end of the circulation pump. The output end of the circulation pump is also connected to a water inlet pipe, which passes through the turntable and extends to the outside of the turntable.

[0007] In a preferred embodiment of the present invention, the arc-shaped positioning assembly includes an arc-shaped plate, a connecting plate, a fixing plate, an arc-shaped baffle, and an air pump for driving the arc-shaped plate to extend and retract. The connecting plate has a through hole, and its inner end has a sliding groove. The through hole is fitted onto the output end of the lifting mechanism. The arc-shaped plate is located above the groove. The fixing plate is horizontally fixed to one side of the outer wall of the arc-shaped plate and extends in a sealed sliding manner into the sliding groove. The air pump is installed on one side of the connecting plate, and its output end passes through the connecting plate and communicates with the sliding groove. A cavity is formed inside the arc-shaped plate, and a fixed part is fixed inside the cavity. An arc-shaped partition plate is connected to the fixed plate. A first drain pipe is connected to one side of the inner wall of the arc-shaped partition plate. A guide groove communicating with the cavity is opened inside the fixed plate. An arc-shaped baffle is fixed to one side of the bottom of the arc-shaped plate and a water storage tank is opened inside the arc-shaped baffle. Multiple sets of spray holes communicating with the water storage tank are evenly opened on the inner side of the arc-shaped baffle. A second drain pipe communicating with the water storage tank is provided at the bottom of the arc-shaped plate. A second corrugated pipe is connected to the side of the outer wall of the fixed plate near the connecting plate. A water guide joint for connecting the first corrugated pipe and the second corrugated pipe is provided at the bottom of the connecting plate.

[0008] In a preferred embodiment of the present invention, the spraying assembly includes a moving tube, a limiting spring, an annular baffle, a roller, and a spray elbow. The moving tube is slidably disposed within a groove, one side of which communicates with a cavity. An annular baffle is fixedly connected to one end of the moving tube, and the annular baffle is axially and slidably sealed to the groove. The limiting spring is movably sleeved outside the moving tube, and both ends of the limiting spring abut against the annular baffle and the inner wall of the groove, respectively. The roller is horizontally rotatably disposed at the end of the moving tube away from the groove, and both ends of the roller are connected to the outer wall of the moving tube through two connecting pieces. A spray elbow is installed at the bottom of the connecting piece below the moving tube, and a connecting hole for communicating between the moving tube and the spray elbow is opened inside.

[0009] In a preferred embodiment of the present invention, a circular plate is fixedly connected to the output end of the lifting mechanism, and a screw is fixedly connected to the top of the circular plate. The screw passes through the through hole and is threaded with a nut for locking and fixing the connecting plate.

[0010] As a preferred embodiment of the present invention, the turntable is provided with a clearance hole in the middle, and the inner wall of the clearance hole is provided with a plurality of drainage outlets connecting the two cavities along the circumferential direction.

[0011] As a preferred embodiment of the present invention, the bottom of the water spray elbow is inclined, and the outlet of the water spray elbow faces the axis of the pump body.

[0012] As a preferred embodiment of the present invention, the drill rod mechanism includes a machine base, a first drill rod, and a second drill rod. The machine base is installed on the inner wall of the machine tool and faces the lead screw slide. The first drill rod is vertically installed on the top wall of the machine base, and the second drill rod is installed on the side wall of the machine base. The first drill rod is located above the lead screw slide, and the second drill rod is horizontally arranged and faces the lead screw slide.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention, through the cooperation of two arc-shaped positioning components and two lifting mechanisms, can firmly press the pump body into the groove, which not only achieves the fixation of the pump body, but also effectively prevents the pump body from shifting or shaking during processing. Furthermore, the cooperation of the two arc-shaped positioning components can be applied to pump bodies of different diameters, greatly improving the versatility and practicality of the device.

[0014] 2. By incorporating a cooling mechanism, this invention can promptly cool the cutting tools and machining areas during pump body processing, reducing machining temperature and minimizing thermal deformation caused by high temperatures. This improves machining accuracy and ensures the quality of hole machining. Simultaneously, the cutting tools on the first and second drill rods machine different holes on the pump body from different directions, meeting the machining requirements of holes at different locations in lubrication pump production and improving processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This invention provides an overall structural schematic diagram of a hole processing device for lubrication pump production; Figure 2 This invention provides a schematic diagram of the connection structure between the fixing mechanism and the lifting mechanism; Figure 3 A front structural cross-sectional view of the arc-shaped positioning component is provided for this invention; Figure 4 for Figure 3 Enlarged view of the structure at point A in the image; Figure 5 for Figure 3 Enlarged view of the structure at point B in the image; Figure 6 A partial structural schematic diagram of the fixing mechanism is provided for this invention; Figure 7 A top sectional view of the arc-shaped positioning component is provided for this invention; Figure 8 A top sectional view of the turntable structure is provided for this invention.

[0017] In the diagram: 1. Machine tool; 2. Lead screw slide; 3. Drill rod mechanism; 4. Worktable; 5. Turntable; 6. Fixing mechanism; 7. Arc-shaped positioning assembly; 8. Lifting mechanism; 9. Cooling mechanism; 10. Circular plate; 11. Screw; 12. Nut; 31. Machine base; 32. First drill rod; 33. Second drill rod; 51. Groove; 52. Annular cavity; 53. Through hole; 54. Clearance hole; 55. Drain outlet; 56. Annular partition plate; 57. Filter screen; 58. First corrugated pipe; 59. Water inlet pipe 71. Arc-shaped plate; 72. Connecting plate; 73. Fixing plate; 74. Arc-shaped baffle; 75. Air pump; 76. Perforation; 77. Slide groove; 78. Cavity; 79. Arc-shaped partition plate; 80. First drain pipe; 81. Second drain pipe; 82. Guide groove; 83. Groove opening; 84. Water storage tank; 85. Moving pipe; 86. Limiting spring; 87. Annular baffle; 88. Roller; 89. Spray elbow; 90. Spray hole; 91. Second corrugated pipe; 92. Water guide joint; 93. Connecting hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example like Figures 1-8 As shown, the present invention provides a hole processing device for producing a lubricating pump, including a machine tool 1. The machine tool 1 is equipped with a lead screw slide 2, a drill rod mechanism 3, and a worktable 4. A turntable 5 is rotatably mounted on the worktable 4. A drive mechanism for driving the turntable 5 to rotate is installed at the bottom of the worktable 4. A groove 51 is opened at the central axis of the top of the turntable 5. The turntable 5 is equipped with a fixing mechanism 6 for fixing the pump body, two lifting mechanisms 8 for driving the fixing mechanism 6 to rise and fall, and a cooling mechanism 9 for cooling the cutting tool. The fixing mechanism 6 includes two arc-shaped positioning components 7, which are symmetrically arranged above the groove 51. The two lifting mechanisms 8 are symmetrically arranged on both sides of the top of the turntable 5. The opposite sides of the two arc-shaped positioning components 7 are detachably connected to the output ends of the two lifting mechanisms 8. The cooling mechanism 9 includes multiple spraying components for spraying cutting fluid onto the cutting tool. Multiple slots 83 are evenly opened on the inner side of the two arc-shaped positioning components 7. The multiple spraying components are respectively installed in the multiple slots 83, and the output ends of the multiple spraying components are all inclined downwards.

[0020] The aforementioned drive mechanism can be a motor or any device capable of driving the turntable 5 to rotate, or the drive mechanism and turntable 5 can be an existing CNC indexing turntable, which will not be elaborated further.

[0021] The drill rod mechanism 3 includes a base 31, a first drill rod 32, and a second drill rod 33. The base 31 is installed on the inner wall of the machine tool 1 and faces the lead screw slide 2. The first drill rod 32 is vertically installed on the inner top wall of the base 31, and the second drill rod 33 is installed on the side wall of the base 31. The first drill rod 32 is located above the lead screw slide 2, and the second drill rod 33 is horizontally set and faces the lead screw slide 2.

[0022] Both the first drill rod 32 and the second drill rod 33 can be equipped with precision boring tools or reamers for finishing the holes. These tools can be adapted to meet actual machining needs. When machining the pump body, the first drill rod 32 is positioned directly above the groove 51, and the second drill rod 33 is positioned slightly above and to the side of the groove 51. Therefore, the tool on the first drill rod 32 primarily machines the shaft hole inside the pump body, while the tool on the second drill rod 33 mainly assists in machining multiple holes, such as the oil outlet hole, on the side wall of the dry oil lubrication pump. In actual machining, the first drill rod 32 drills the pump body shaft hole vertically downwards, while the second drill rod 33 machines the holes on the side of the pump body horizontally. By adjusting the feed rate and rotation speed of the second drill rod 33, the diverse usage requirements of the oil lubrication pump can be met.

[0023] The turntable 5 has an annular cavity 52 inside, and an annular partition plate 56 is set inside the annular cavity 52. ​​The annular partition plate 56 divides the annular cavity 52 into cavity one and cavity two. Multiple sets of through holes 53 communicating with the annular cavity 52 are evenly distributed along the circumferential direction at the bottom of the groove 51. Cavity two communicates with the multiple sets of through holes 53. A circulation pump is installed inside cavity one, and the input end of the circulation pump passes through the annular partition plate 56 and communicates with cavity two. The output end of the circulation pump is connected to a first corrugated pipe 58. A filter screen 57 is horizontally arranged inside cavity two. The filter screen 57 is located above the input end of the circulation pump. The output end of the circulation pump is also connected to a water inlet pipe 59, which passes through the turntable 5 and extends to the outside of the turntable 5.

[0024] In existing technologies, the pump body of a lubrication pump is generally manufactured through injection molding, die casting, investment casting, or sand casting. Regardless of the molding method, the holes on the pump body blank are rough and imprecise, requiring subsequent machining to ensure their accuracy, surface finish, and geometry. Therefore, the diameter of the holes must be strictly controlled within their tolerance range. Holes that are too small will prevent the installation of shafts, bearings, or valve cores; holes that are too large will cause loose fits, leading to leakage or accelerated wear. The quality of these holes directly determines the sealing performance, efficiency, and service life of the lubrication pump. To ensure the machining accuracy of the pump body holes, they need to be fixed during finishing to prevent displacement or vibration during processing, thus avoiding hole diameter deviations caused by machining errors.

[0025] In this embodiment, before processing the pump body, two arc-shaped positioning components 7 are respectively installed on the output ends of two lifting mechanisms 8. The lifting mechanism 8 is preferably an electric push rod or a hydraulic cylinder. Furthermore, a circular plate 10 is fixedly connected to the output end of the lifting mechanism 8, and a screw 11 is fixedly connected to the top of the circular plate 10. The screw 11 passes through the through hole 76 and is threaded with a nut 12 for locking and fixing the connecting plate 72.

[0026] The opposite ends of the arc-shaped positioning components 7 are respectively fitted onto the screws 11 of the circular plates 10 of the two lifting mechanisms 8, and the arc-shaped positioning components 7 are firmly locked onto the circular plates 10 by rotating the nuts 12 to ensure the stability of the arc-shaped positioning components 7 during the lifting process. Then, the pump body to be processed is placed in the middle position inside the groove 51 on the top of the turntable 5, and the two arc-shaped positioning components 7 are moved down by the lifting mechanisms 8 and pressed against the top of the pump body. The lifting mechanisms 8 drive the two arc-shaped positioning components 7 to continue to move down until the pump body is firmly pressed against the inside of the groove 51.

[0027] Furthermore, the arc-shaped positioning component 7 includes an arc-shaped plate 71, a connecting plate 72, a fixing plate 73, an arc-shaped baffle 74, and an air pump 75 for driving the extension and retraction of the arc-shaped plate 71. The connecting plate 72 has a through hole 76 and a sliding groove 77 at its inner end. The through hole 76 is fitted onto the output end of the lifting mechanism 8. The arc-shaped plate 71 is located above the groove 51. The fixing plate 73 is horizontally fixed to one side of the outer wall of the arc-shaped plate 71 and extends in a sealed sliding manner into the sliding groove 77. The air pump 75 is installed on one side of the connecting plate 72, and its output end passes through the connecting plate 72 and communicates with the sliding groove 77. A cavity 78 is formed inside the arc-shaped plate 71, and a fixed connection is made inside the cavity 78. There is an arc-shaped partition plate 79, and a first drain pipe 80 is connected to one side of the inner wall of the arc-shaped partition plate 79. A guide groove 82 communicating with the cavity 78 is opened inside the fixed plate 73. An arc-shaped baffle 74 is fixed to one side of the bottom of the arc-shaped plate 71, and a water storage tank 84 is opened inside the arc-shaped baffle 74. Multiple sets of water spray holes 90 communicating with the water storage tank 84 are evenly opened on the inner side of the arc-shaped baffle 74. A second drain pipe 81 communicating with the water storage tank 84 is provided at the bottom of the arc-shaped plate 71. A second corrugated pipe 91 is connected to the side of the outer wall of the fixed plate 73 near the connecting plate 72. A water guide joint 92 for connecting the first corrugated pipe 58 and the second corrugated pipe 91 is provided at the bottom of the connecting plate 72.

[0028] In use, the lifting mechanism 8 drives the arc-shaped positioning component 7 to move down, and the arc-shaped plate 71 first abuts against the top of the pump body. Then, the drill rod mechanism 3 drives the cutter on the first drill rod 32 to move down and pass between the two arc-shaped positioning components 7. At this time, the air pump 75 is started, and gas is input into the slide groove 77 through the air pump 75, thereby pushing the fixing plate 73 and moving the arc-shaped plate 71 on the top of the pump body until the arc-shaped baffle 74 at the bottom of the arc-shaped plate 71 abuts against the two sides of the disc protrusion on the top of the pump body, and pushes the pump body to the center axis position of the turntable 5, thereby realizing the positioning and fixing of the pump body. It can also adjust the position of the pump body to adapt to the processing requirements of different sizes. Then, the lifting mechanism 8 drives the arc-shaped plate 71 to continue to press down, thereby firmly fixing the pump body inside the groove 51. Through the above operation, not only is the pump body fixed, but it can also effectively prevent the pump body from shifting or shaking during the processing. Next, the drill rod mechanism 3 drives the cutting tool on the first drill rod 32 to continue moving down into the shaft hole of the pump body, and performs machining on the inner wall of the shaft hole. According to the machining requirements, the turntable 5 can be driven to rotate by the drive mechanism to cooperate with the drill rod mechanism 3 to perform shaft hole machining operations on the pump body.

[0029] In this invention, by raising and lowering the two arc-shaped plates 71 and moving the two arc-shaped baffles 74 relative to each other, the pump body can be limited and fixed not only in the longitudinal direction but also in the lateral direction. This bidirectional limiting and fixing method improves the stability of the pump body during processing, avoiding processing errors caused by pump body shaking or displacement, and ensuring the accuracy and quality of shaft hole processing.

[0030] During the operation of the drill pipe mechanism 3, a large amount of chips will be generated. Some of these chips will fall onto the worktable 4, and some will adhere to the inside of the pump body and the arc-shaped positioning component 7. To maintain a clean processing environment and ensure the accuracy of subsequent processing, the spraying assembly further includes a moving tube 85, a limiting spring 86, an annular baffle 87, a roller 88, and a spraying elbow 89. The moving tube 85 is slidably disposed within the slot 83, with one side of the slot 83 communicating with the cavity 78. One end of the moving tube 85 is fixedly connected to the annular baffle 87, which is axially and slidably sealed to the slot 83. The limiting spring 86 is movably sleeved outside the moving tube 85, with both ends of the limiting spring 86 abutting against the annular baffle 87 and the inner wall of the slot 83, respectively. The roller 88 is horizontally rotatably disposed at the end of the moving tube 85 away from the slot 83, and both ends of the roller 88 are connected to the outer wall of the moving tube 85 through two connectors. The spraying elbow 89 is installed at the bottom of the connector located below the moving tube 85, and the connector has a connecting hole 93 inside that connects the moving tube 85 and the spraying elbow 89.

[0031] A clearance hole 54 is provided in the middle of the turntable 5, and multiple drainage outlets 55 connecting the two cavities are provided on the inner wall of the clearance hole 54 along the circumferential direction. When the drill rod mechanism 3 is working, the external pipe for conveying cutting fluid is connected to the water inlet pipe 59, and a certain amount of cutting fluid is conveyed to the water inlet pipe 59 by a water pump. The cutting fluid is conveyed to the water guide joint 92 through the first corrugated pipe 58, and then to the second corrugated pipe 91 through the water guide joint 92. After passing through the guide groove 82, the cutting fluid enters the cavity 78. Subsequently, the cutting fluid is diverted through the first drain pipe 80 and the second drain pipe 81 to the cavity 78 on one side of the arc-shaped partition plate 79 and the water storage tank 84 inside the arc-shaped baffle 74, respectively. Then, the cutting fluid located inside the cavity 78 and the water storage tank 84 is also sprayed onto the outer wall of the first drill rod 32 through the water spray hole 90 and the spraying assembly, and flows along the first drill rod 32 to the cutting tool at its end, and then falls into the pump body. At the shaft hole, the water storage tank 84 set inside the arc-shaped baffle 74 diverts another part of the cutting fluid in the cavity 78 and sprays it onto the outer wall of the pump body through the spray hole 90. In order to avoid the protrusion at the outer edge of the top of the pump body from blocking or obstructing the spray hole 90 inside the arc-shaped baffle 74, the height of the arc-shaped baffle 74 should be greater than the height of the protrusion at the outer edge of the top of the conventional pump body. After the cutting fluid is sprayed to the corresponding position, on the one hand, it can cool the holes on the side wall of the pump body and the internal shaft hole, reduce the heat generated during the operation of the drill rod mechanism 3, and prevent the machining accuracy and equipment service life from being affected by excessive temperature; on the other hand, the cutting fluid can flow with the chips and dust generated during the operation, and flush these chips and dust away from the inside of the pump body and the other openings on the side wall of the pump body.

[0032] Furthermore, since the groove 51 is provided with multiple sets of through holes 53, and the turntable 5 is provided with clearance holes 54, and the clearance holes 54 have drainage outlets 55 inside, the cutting fluid, after passing through the shaft hole of the pump body and multiple openings on the side wall of the pump body, can smoothly flow into the second cavity through the through holes 53, clearance holes 54, and drainage outlets 55. The second cavity is provided with a filter screen 57. When the cutting fluid falls into the second cavity, the filter screen 57 filters the cutting fluid, intercepting impurities such as chips, thus filtering the cutting fluid. The filtered cutting fluid will accumulate at the bottom of the second cavity and then be recycled by the circulation pump. The water inlet pipe 59 can continuously replenish new cutting fluid, preventing the cutting fluid from decreasing due to continuous consumption during circulation, thereby ensuring a sufficient supply of cutting fluid throughout the entire processing. In addition, the new cutting fluid added by the inlet pipe 59 mixes with the circulating cutting fluid, which can also regulate the temperature and concentration of the cutting fluid, keeping it in the optimal state for processing.

[0033] It is worth noting that, in order to facilitate the control of the flow direction and flow rate of the cutting fluid, control valves can be installed at the inlet pipe 59, the first drain pipe 80 and the second drain pipe 81 respectively. The control valves can be selected according to the specific application scenario. This is existing technology, and its principle will not be described in detail here.

[0034] The spraying assembly includes a moving tube 85, a limiting spring 86, an annular baffle 87, a roller 88, and a spray elbow 89. The moving tube 85 is slidably disposed in a groove 83, with one side of the groove 83 communicating with a cavity 78. One end of the moving tube 85 is fixedly connected to the annular baffle 87, which is axially and slidably sealed to the groove 83. The limiting spring 86 is movably sleeved on the outside of the moving tube 85, and both ends of the limiting spring 86 abut against the annular baffle 87 and the inner wall of the groove 83, respectively. The roller 88 is horizontally rotatably disposed at the end of the moving tube 85 away from the groove 83, and both ends of the roller 88 are connected to the outer wall of the moving tube 85 through two connectors. The spray elbow 89 is installed at the bottom of the connector located below the moving tube 85, and the connector has a connecting hole 93 inside that connects the moving tube 85 and the spray elbow 89.

[0035] The bottom of the aforementioned water spray elbow 89 is inclined, and the outlet of the water spray elbow 89 faces the center of the pump body.

[0036] Multiple spraying components are evenly arranged along the inner side of the arc-shaped plate 71. Therefore, before the arc-shaped plate 71 moves to position and fix the pump body, the cutter at the end of the first drill rod 32 is lowered to the shaft hole inside the pump body. Then, the air pump 75 pushes the fixing plate 73 to move, thereby moving the arc-shaped plate 71 towards the outer wall of the first drill rod 32. At this time, multiple rollers 88 first abut against the outer wall of the first drill rod 32. As the rollers 88 continue to move, the rolling contact between the rollers 88 and the outer wall of the first drill rod 32 causes the moving tube 85 to slide axially within the slot 83. The compression limit spring 86 drives the water spray elbow 89 at the bottom of the connector to move backward, adjusting the position of the water spray elbow 89 to maintain the optimal relative distance between the water spray elbow 89, the first drill rod 32, and the cutting tool. Because the bottom of the water spray elbow 89 is inclined and the outlet faces the axis, when the first drill rod 32 moves down to the middle position inside the pump body, all the water spray elbows 89 face the first drill rod 32, spraying cutting fluid onto it. The cutting fluid flows along its outer wall to the machining contact area between the cutting tool and the pump body. When multiple spraying components work synchronously, their rollers 88 are arranged along the outer periphery of the first drill rod 32, causing the cutting fluid sprayed from the water spray elbows 89 to combine with the centrifugal force generated by the rotation of the cutting tool, forming a spiral liquid film inside the pump body. This spiral liquid film can splash onto the inner wall of the pump body, thereby washing away the chips and dust adhering to the inner wall.

[0037] Since the slot 83 is connected to the inside of the cavity 78, the cutting fluid inside the cavity 78 is transported to the water spray elbow 89 through the moving pipe 85 and the connecting hole 93. Finally, the inclined water spray elbow 89 sprays the cutting fluid evenly onto the outer wall of the first drill rod 32 and its cutting tool, so as to reduce the friction and wear of the cutting tool when it is processed inside the pump body shaft hole, and improve the processing accuracy and the service life of the cutting tool.

[0038] Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A hole-machining device for producing a lubricating pump, comprising a machine tool (1), wherein the machine tool (1) is equipped with a lead screw slide (2), a drill rod mechanism (3), and a worktable (4), characterized in that, A turntable (5) is rotatably mounted on the worktable (4). A drive mechanism for driving the turntable (5) to rotate is installed at the bottom of the worktable (4). A groove (51) is provided at the central axis of the top of the turntable (5). The turntable (5) is provided with a fixing mechanism (6) for fixing the pump body, two lifting mechanisms (8) for driving the fixing mechanism (6) to rise and fall, and a cooling mechanism (9) for cooling the tool. The fixing mechanism (6) includes two arc-shaped positioning components (7). The two arc-shaped positioning components (7) are positioned to... The two lifting mechanisms (8) are symmetrically arranged on both sides of the top of the turntable (5). The opposite sides of the two arc-shaped positioning components (7) are detachably connected to the output ends of the two lifting mechanisms (8). The cooling mechanism (9) includes multiple spraying components for spraying cutting fluid to the tool. Multiple slots (83) are evenly opened on the inner side of the two arc-shaped positioning components (7). The multiple spraying components are respectively installed in the multiple slots (83), and the output ends of the multiple spraying components are all tilted downwards. The arc-shaped positioning component (7) includes an arc-shaped plate (71), a connecting plate (72), a fixing plate (73), an arc-shaped baffle (74), and an air pump (75) for driving the arc-shaped plate (71) to extend and retract. The connecting plate (72) has a through hole (76) and a sliding groove (77) at its inner end. The through hole (76) is fitted onto the output end of the lifting mechanism (8). The arc-shaped plate (71) is located above the groove (51). The fixing plate (73) is horizontally fixed to one side of the outer wall of the arc-shaped plate (71) and extends in a sealed sliding manner into the sliding groove (77). The air pump (75) is installed on one side of the connecting plate (72), and the output end of the air pump (75) passes through the connecting plate (72) and communicates with the sliding groove (77). The arc-shaped plate (71) has a cavity (78) inside. The cavity (78) is fixed inside the connecting plate. An arc-shaped partition plate (79) is connected to the inner wall of the arc-shaped partition plate (79), and a first drain pipe (80) is connected to one side of the inner wall of the arc-shaped partition plate (79). A guide groove (82) communicating with the cavity (78) is opened inside the fixed plate (73). An arc-shaped baffle (74) is fixed to one side of the bottom of the arc-shaped plate (71), and a water storage tank (84) is opened inside the arc-shaped baffle (74). Multiple sets of spray holes (90) communicating with the water storage tank (84) are evenly opened on the inner side of the arc-shaped baffle (74). A second drain pipe (81) communicating with the water storage tank (84) is provided at the bottom of the arc-shaped plate (71). A second corrugated pipe (91) is connected to the outer wall of the fixed plate (73) near the connecting plate (72). A water guide joint (92) for connecting the first corrugated pipe (58) and the second corrugated pipe (91) is provided at the bottom of the connecting plate (72). The spray assembly includes a movable tube (85), a limiting spring (86), an annular baffle (87), a roller (88), and a spray elbow (89). The movable tube (85) is slidably disposed within the slot (83), one side of which communicates with the cavity (78). One end of the movable tube (85) is fixedly connected to the annular baffle (87), which is axially sealed and slidably connected to the slot (83). The limiting spring (86) is movably sleeved on the movable tube (85). Externally, the two ends of the limiting spring (86) abut against the inner wall of the annular baffle (87) and the slot (83) respectively. The roller (88) is horizontally rotated and disposed at one end of the moving tube (85) away from the slot (83). The two ends of the roller (88) are connected to the outer wall of the moving tube (85) through two connectors respectively. A water spray elbow (89) is installed at the bottom of the connector below the moving tube (85) and a connecting hole (93) connecting the moving tube (85) and the water spray elbow (89) is opened inside.

2. The hole machining device for lubrication pump production according to claim 1, characterized in that, The turntable (5) has an annular cavity (52) inside. An annular partition plate (56) is provided inside the annular cavity (52). The annular partition plate (56) divides the annular cavity (52) into cavity one and cavity two. Multiple sets of through holes (53) communicating with the annular cavity (52) are evenly distributed along the circumferential direction at the bottom of the groove (51). Cavity two is connected to the multiple sets of through holes (53). A circulation pump is installed inside cavity one. The input end of the circulation pump passes through the annular partition plate (56) and is connected to cavity two. The output end of the circulation pump is connected to a first corrugated pipe (58). A filter screen (57) is horizontally arranged inside cavity two. The filter screen (57) is located above the input end of the circulation pump. The output end of the circulation pump is also connected to a water inlet pipe (59). The water inlet pipe (59) passes through the turntable (5) and extends to the outside of the turntable (5).

3. The hole machining device for lubrication pump production according to claim 1, characterized in that, A circular plate (10) is fixedly connected to the output end of the lifting mechanism (8). A screw (11) is fixedly connected to the top of the circular plate (10). The screw (11) passes through the through hole (76) and is threaded with a nut (12) for locking and fixing the connecting plate (72).

4. The hole machining device for lubrication pump production according to claim 1, characterized in that, The turntable (5) has a clearance hole (54) in the middle, and the inner wall of the clearance hole (54) has multiple drainage outlets (55) connecting the two cavities along the circumferential direction.

5. A hole-machining device for lubrication pump production according to claim 1, characterized in that, The bottom of the water spray elbow (89) is inclined, and the outlet of the water spray elbow (89) faces the center of the pump body.

6. The hole machining apparatus for lubrication pump production according to claim 1, characterized in that, The drill rod mechanism (3) includes a base (31), a first drill rod (32) and a second drill rod (33). The base (31) is installed on the inner wall of the machine tool (1) and faces the lead screw slide (2). The first drill rod (32) is installed vertically on the inner top wall of the base (31). The second drill rod (33) is installed on the side wall of the base (31). The first drill rod (32) is located above the lead screw slide (2). The second drill rod (33) is set horizontally and faces the lead screw slide (2).

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