A surface-point punching device for high-precision coupling machining

Abstract

This invention belongs to the field of fixed-point punching technology for couplings, and in particular, it is a surface fixed-point punching device for high-precision coupling processing. A hydraulic rod is fixedly connected to the top of the base. An upper plate is fixedly connected to the upper movable end of the hydraulic rod. A connecting plate is provided on the lower side of the upper plate. A third motor is fixedly connected to the inner side of the connecting plate. A drill bit is fixedly connected to the end of the spindle of the third motor. A rotating rod is rotatably mounted on the outer side of the drill bit. A ball bearing for reducing frictional resistance is rotatably mounted at the bottom end of the rotating rod. A paddle is fixedly connected to the lower side of the rotating rod. A cylindrical enclosure is provided on the outer side of the rotating rod. A cavity for placing cooling water is opened on the inner side of the enclosure. An arc-shaped inner groove exists on the upper side of the cavity. One end of the inner groove extends towards the lower side of the rotating rod. An outlet channel is opened on the inner side of the upper and lower middle positions of the enclosure. A baffle is slidably connected to the inner side of the outlet channel.

Description

Technical Field

[0001] This invention belongs to the field of fixed-point punching technology for couplings, and specifically relates to a surface fixed-point punching device for high-precision coupling processing. Background Technology

[0002] A coupling is a mechanical part used to connect two shafts (driving shaft and driven shaft) in different mechanisms so that they rotate together to transmit torque. In high-speed and heavy-load power transmission, some couplings also have the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system. A coupling consists of two halves, which are connected to the driving shaft and the driven shaft respectively. Generally, most power machines are connected to the working machine by means of couplings.

[0003] like Figure 1 The coupling shown includes a cylinder a sleeved on a driving shaft or a driven shaft and a disc c for connecting two cylinders a. The disc c has a circular hole for connection. The cylinder a cooperates with a key on the driving shaft or the driven shaft to achieve torque transmission.

[0004] For the above-mentioned couplings, during their installation and use, the concentric alignment error between the two couplings directly affects their service life and working stability. During processing, it is necessary to ensure that multiple round holes are concentrically machined with cylinder a.

[0005] During the machining of round holes, the high temperature generated by the rotation and friction of the drill bit will cause a large temperature difference between the round hole and other positions, which will generate stress at the punching point and cause deviations, thus affecting the machining accuracy of the coupling.

[0006] In existing technologies, there are methods to reduce stress by simultaneously cooling with cooling water and punching holes. However, in actual operation, due to the inertia of the water flow and the influence of gravity, the water cannot be evenly distributed around the punching point. As a result, there is still a large stress difference in actual operation, which affects the machining accuracy of the coupling. Summary of the Invention

[0007] To address the problems mentioned in the background section, this invention provides a surface-point punching device for high-precision coupling machining. This device overcomes and significantly reduces the stress generated at the punching point during the machining of round holes, thus ensuring the machining accuracy of the coupling.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a surface-fixed punching device for high-precision coupling processing, comprising a base, a hydraulic rod fixedly connected to the top of the base, an upper plate fixedly connected to the upper movable end of the hydraulic rod, a connecting plate provided on the lower side of the upper plate, a third motor fixedly connected to the inner side of the connecting plate, a drill bit fixedly connected to the end of the spindle of the third motor, a rotating rod rotatably provided on the outer side of the drill bit, a ball bearing for reducing frictional resistance rotatably provided at the bottom end of the rotating rod, and a paddle fixedly connected to the lower side of the rotating rod;

[0009] A cylindrical enclosure is provided on the outer side of the rotating rod. A cavity for placing cooling water is opened on the inner side of the enclosure. An arc-shaped groove is present on the upper side of the cavity. One end of the inner side of the groove extends towards the lower side of the rotating rod. An outlet channel is opened on the inner side of the upper and lower middle positions of the enclosure. A baffle is slidably connected to the inner side of the outlet channel. A through hole is opened on the inner side of the baffle. A thermal spring is provided on the inner side of the enclosure. The two ends of the thermal spring are fixedly connected to the inner side of the enclosure and the bottom end of the baffle, respectively. The overlap opening of the through hole and the outlet channel is changed by the thermal spring extending due to heat.

[0010] With the above-described configuration, the present invention enables the cooling water to be evenly distributed around the opening during use, reducing the temperature stress generated near the opening and thus improving the stability and accuracy during punching.

[0011] During punching, the third motor drives the drill bit to rotate. The high-speed rotation of the drill bit is accompanied by the contraction of the hydraulic rod, which allows the drill bit to penetrate deep into the inner side of the coupling, thereby realizing the hole opening operation.

[0012] The present invention has a baffle on the outer surface of the opening. The baffle is made of copper and the copper material is used to achieve efficient heat transfer. When using the baffle, it is best to use thermal grease to make it adhere to the coupling and achieve efficient heat conduction and adhesion.

[0013] Within the cavity enclosed by the enclosure, as the drill bit rotates, the rotation of the drill bit drives the fourth gear to rotate synchronously. The rotation of the fourth gear drives the fifth gear to rotate, which in turn drives the inner ring to rotate. The rotation of the inner ring drives the rotating rod to rotate. Because the diameter of the inner ring is much larger than that of the fifth gear, the above-mentioned transmission mechanism can also reduce speed while transmitting power, thus causing the rotating rod to rotate inside the cavity. Under the action of the rotating rod, the outer flap will cause the cooling water in the cavity to rotate around the rotating rod. Due to the small effect of centrifugal force, the cooling water diffuses outward and rotates continuously, thereby achieving uniform cooling of the opening and reducing the temperature difference generated near the opening.

[0014] At the same time, under the action of centrifugal force, the outermost part of the cooling water will flow back to the rotating rod under the action of the inner groove during the outward expansion process, increasing the flow of liquid at the center of the rotating rod and ensuring the cooling of the center of the drill bit.

[0015] During the above liquid circulation process, a portion of the liquid will be discharged under the action of the outlet channel. In the initial state, the through hole on the baffle slightly overlaps with the outlet channel, and the liquid supply pipe will supply new coolant.

[0016] Meanwhile, as the rotation proceeds and the temperature rises, the thermal spring expands due to the heat. Under the expansion of the thermal spring, the baffle on its upper side will rise, and the opening of the through hole inside will gradually increase as it coincides with the outlet channel, thereby increasing the amount of coolant discharged during the circulation process and playing an effective role in cooling.

[0017] Meanwhile, during the drilling process, debris generated by the rotation of the drill bit will exist in the circulation of the aforementioned liquid. This invention provides a filter screen on the lower side of the inner groove. When the cooling water flows back through the inner groove, the filter screen can filter the debris in the cooling water. The filter screen is located at the end of the circulation process, which can minimize the resistance of the filter screen during water circulation and prevent debris from interfering with the connection between the drill bit and the punch.

[0018] As a preferred embodiment of the surface-fixed punching device for high-precision coupling processing according to the present invention, the bottom end of the connecting disc is fixedly connected to an outer ring, an inner ring is rotatably provided on the inner side of the outer ring, a limit rod is fixedly connected to the bottom end of the inner ring, the limit rod is slidably connected to the inner side of the top end of the rotating rod, and a first spring is provided on the outer side of the limit rod, with the two ends of the first spring being fixedly connected to the top end of the rotating rod and the bottom end of the inner ring, respectively.

[0019] In the above configuration, the outer ring serves to support the inner ring, and the inner ring drives the rotating rod to rotate through the limiting rod. The first spring and the limiting rod play the role of distance compensation and clamping, so that the bottom end of the rotating rod is always in contact with the punching point.

[0020] As a preferred embodiment of the surface-fixed punching device for high-precision coupling processing according to the present invention, a fourth gear is fixedly connected to the outer side of the drill bit, a fifth gear is rotatably arranged at the bottom end of the connecting disc, and the inner side of the inner ring is arranged in a toothed ring shape. The fifth gear meshes with both the fourth gear and the inner side of the inner ring, thereby driving the rotating rod to decelerate and rotate through the rotation of the drill bit.

[0021] As a preferred embodiment of the surface-point punching device for high-precision coupling processing according to the present invention, the paddle is arranged in the shape of a right-angled trapezoid, and the width of the lower part of the paddle is greater than that of the upper part.

[0022] Under the above configuration, the present invention can also make the paddle into a right-angled trapezoid shape to increase the rotational force at its bottom and accelerate the water circulation;

[0023] As a preferred embodiment of the surface-point punching device for high-precision coupling processing according to the present invention, a telescopic rod with elastic telescopic function is fixedly provided between the connecting disc and the enclosure.

[0024] Under the above configuration, the present invention may also fix a telescopic rod between the connecting plate and the fence. The telescopic rod is a prior art telescopic rod with an internal elastic element, which is used to connect the fence and make the top of the fence fit tightly with the coupling. The telescopic rod is not shown.

[0025] As a preferred embodiment of the surface-point punching device for high-precision coupling processing according to the present invention, a filter screen is fixedly connected to the inner side of the enclosure, and the cross-section of the filter screen is concave.

[0026] By designing the cross-section of the filter to be concave, it can collect the intercepted debris.

[0027] As a preferred embodiment of the surface-fixed punching device for high-precision coupling processing according to the present invention, an inner disk is rotatably provided on the inner side of the upper disk, a gear ring is fixedly connected to the top of the inner disk, a first motor is fixedly connected to the top of the upper disk, a first gear is fixedly connected to the end of the main shaft of the first motor, the first gear and the gear ring mesh with each other, and the drill bit is adjusted in position above the coupling by the rotation of the first motor.

[0028] With the above settings, the present invention can adjust the position of the drill bit above the coupling, which facilitates coaxial multi-point drilling. During adjustment, the first motor rotates, which drives the first gear to rotate. The rotation of the first gear will drive the gear ring and the inner disk to rotate. The rotation of the inner disk is used to drive the drill bit to revolve on the coupling, thereby realizing the adjustment of the position.

[0029] As a preferred embodiment of the surface-point punching device for high-precision coupling processing according to the present invention, the inner side of the inner disk is provided with a sliding groove, and a slider is slidably connected to the inner side of the sliding groove. The bottom end of the slider is fixedly connected to the top end of the connecting disk. A second motor is fixedly connected to the inner side of the inner disk, and a lead screw is fixedly connected to the end of the main shaft of the second motor. The lead screw is helically connected to the inner side of the slider. The position of the drill bit on the coupling is adjusted by rotating the second motor.

[0030] With the above settings, the present invention can adjust the position of the drill bit on the coupling, which facilitates the adjustment of the center point position of the punching distance. During adjustment, the second motor drives the lead screw to rotate, and the rotation of the lead screw will drive the slider to move back and forth. The movement of the slider will drive the connecting plate and the drill bit to adjust their positions.

[0031] As a preferred embodiment of the surface-fixed punching device for high-precision coupling processing according to the present invention, the base and the upper plate are concentric. A support rod is fixedly connected to the top of the base, and a load-bearing plate for supporting the coupling is fixedly connected to the outer side of the support rod. An inner rod is rotatably arranged on the inner side of the support rod. A third gear is fixedly connected to the outer side of the top of the inner rod, and a second gear is rotatably connected to the top of the support rod. The third gear and the second gear mesh with each other. A top plate is fixedly connected to the outer side of the second gear, and a rubber pad is fixedly connected to the outer side of the top plate. By rotating the inner rod, multiple top plates expand outward synchronously to achieve positioning of the coupling. A fourth motor is fixedly connected to the inner side of the base. A worm gear is fixedly connected to the end of the main shaft of the fourth motor, and a worm wheel is fixedly connected to the bottom end of the support rod. The worm gear meshes with the worm wheel.

[0032] With the above configuration, this invention can achieve coaxial alignment of the punching points of the coupling during punching, ensuring the accuracy of the coupling connection. In use, the coupling is fitted onto the support rod and placed on the load-bearing plate. Then, the fourth motor rotates, which drives the worm gear to rotate. The worm gear then drives the worm wheel to rotate. During the rotation of the worm wheel, the worm wheel drives the inner rod to rotate, which in turn drives the outer fourth gear to rotate. The rotation of the fourth gear drives the second gear to rotate, which in turn drives the outer top plate to rotate. The rotation of the top plate limits and supports the interior of the coupling, fixing the coupling and automatically adjusting its position so that the center line of the coupling overlaps with the support rod, facilitating subsequent fixed-point punching. The rubber pad increases friction and prevents the top plate from scratching the interior of the coupling.

[0033] As a preferred embodiment of the surface-point punching device for high-precision coupling processing according to the present invention, the enclosure is provided with a supply pipe for adding coolant, and a water level sensor for sensing the water level inside the sensor is fixedly connected to the inner side of the bottom end of the enclosure.

[0034] In the above configuration, the supply pipe is used to add coolant. The coolant inside the supply pipe is driven by a pump. The water level sensor senses the water level by sensing the pressure on its outer side. The power of the pump is linearly related to the reading of the water level sensor. When there is less water inside the cavity, the pressure value sensed by the water level sensor is lower, thus increasing the power of the pump. When there is more water inside the cavity, the pressure value sensed by the water level sensor is higher, thus decreasing the power of the pump.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] 1. This invention relates to a surface-point punching device for high-precision coupling machining. During use, the device ensures that cooling water is evenly distributed around the opening, reducing temperature stress near the opening and thus improving the stability and accuracy of the punching process. During punching, a third motor drives the drill bit to rotate. The high-speed rotation of the drill bit, accompanied by the contraction of the hydraulic rod, allows the drill bit to penetrate deep into the inner side of the coupling, thereby achieving the punching operation. A baffle is provided on the outer surface of the opening. Within the cavity enclosed by the baffle, as the drill bit rotates, it drives a fourth gear to rotate synchronously. The rotation of the fourth gear drives a fifth gear to rotate, which in turn drives the inner ring to rotate. The rotation of the inner ring drives the rotating rod to rotate. Because the diameter of the inner ring is much larger than that of the fifth gear, the aforementioned transmission mechanism can also reduce speed while transmitting power, thus causing the rotating rod to rotate inside the cavity. Under the rotation of the rotating rod, the outer pawl will cause the cooling water in the cavity to rotate around the rotating rod. Due to the small centrifugal force, the cooling water diffuses outward and rotates continuously, thereby achieving uniform cooling at the opening and reducing the temperature difference generated near the opening. At the same time, under the action of centrifugal force, the outermost cooling water will flow back to the rotating rod during the outward expansion process under the action of the inner groove, increasing the flow of liquid at the center of the rotating rod and ensuring the cooling of the drill bit center.

[0037] 2. In the above-mentioned high-precision coupling machining surface fixed-point punching device, during the liquid circulation process, a portion of the liquid will be discharged under the action of the outlet channel. In the initial state, the through hole on the baffle plate slightly overlaps with the outlet channel, and the liquid supply pipe will supply new coolant. At the same time, as the rotation proceeds and the temperature rises, the thermal spring expands due to heat. Under the expansion action of the thermal spring, the baffle plate on its upper side will rise, and the opening of the through hole inside it will gradually increase, thereby increasing the amount of coolant discharged during the circulation process and playing an effective cooling role.

[0038] 3. In this high-precision coupling machining surface-fixed punching device, during the drilling process, debris generated by the rotation of the drill bit will exist in the circulation of the aforementioned liquid. The present invention provides a filter screen on the lower side of the inner groove. When the cooling water flows back in the inner groove, the filter screen can filter the debris in the cooling water. The filter screen is located at the end of the circulation process, which can minimize the resistance of the filter screen during the water circulation process and avoid the debris from interfering with the connection between the drill bit and the punch.

[0039] 4. This invention relates to a surface-fixed punching device for high-precision coupling processing. During coupling punching, the device enables coaxial setting of the punching points, ensuring the accuracy of the coupling connection. In use, the coupling is fitted onto a support rod and placed on a load-bearing plate. Then, a fourth motor rotates, which drives a worm gear, which in turn drives a worm wheel. During the worm wheel's rotation, the inner rod rotates, which in turn drives a fourth gear on the outer side. This fourth gear then drives a second gear, which in turn drives a top plate on its outer side. The top plate's rotation limits and supports the internal components of the coupling, fixing it in place and automatically adjusting its position so that the coupling's centerline overlaps with the support rod, facilitating subsequent fixed-point punching. The rubber pad increases friction and prevents the top plate from scratching the inside of the coupling. Attached Figure Description

[0040] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0041] Figure 1 This is a schematic diagram of the appearance of a conventional coupling according to the present invention;

[0042] Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention;

[0043] Figure 3 This is a schematic diagram of the overall internal cross-sectional installation structure in this invention;

[0044] Figure 4 This is a schematic diagram of the external installation structure of the enclosure in this invention.

[0045] Figure 5 This is a schematic diagram of the internal installation structure at the enclosure in this invention;

[0046] Figure 6 In this invention Figure 5 An enlarged structural diagram at point A;

[0047] Figure 7 In this invention Figure 5 A magnified structural diagram at point B;

[0048] Figure 8 This is a schematic diagram of the installation structure at the baffle in this invention;

[0049] Figure 9 This is a schematic diagram of the installation structure of the rotating rod in this invention;

[0050] Figure 10This is a schematic diagram of a further installation structure of the rotating rod in this invention;

[0051] Figure 11 This is a schematic diagram of the mounting structure at the fourth gear in this invention;

[0052] Figure 12 This is a schematic diagram of the internal mounting structure of the base in this invention;

[0053] Figure 13 This is a schematic diagram of the mounting structure at the third gear in this invention.

[0054] In the picture:

[0055] 1. Base; 2. Hydraulic rod; 3. Liquid supply pipe; 4. Enclosure; 5. Upper plate; 6. Gear ring; 7. First gear; 8. First motor; 9. Load-bearing plate; 10. Inner plate; 11. Second motor; 12. Slider; 13. Connecting plate; 14. Ball bearing; 15. Outlet channel; 16. Support rod; 17. Second gear; 18. Inner rod; 19. Third gear; 20. Top plate; 21. Rubber pad; 22. Third motor; 23. Outer ring; 24. Limiting rod; 25. First spring; 26. Rotating rod; 27. Drill bit; 28. Fourth motor; 29. ​​Water level sensor; 30. Inner groove; 31. Baffle; 32. Filter screen; 33. Thermal spring; 34. Paddle; 35. Worm gear; 36. Fourth gear; 37. Fifth gear; 38. Inner ring; 39. Worm; 40. Lead screw. Detailed Implementation

[0056] 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.

[0057] Example 1

[0058] like Figure 1-9 As shown: A surface-fixed punching device for high-precision coupling processing includes a base 1. A hydraulic rod 2 is fixedly connected to the top of the base 1. An upper plate 5 is fixedly connected to the upper movable end of the hydraulic rod 2. A connecting plate 13 is provided on the lower side of the upper plate 5. A third motor 22 is fixedly connected to the inner side of the connecting plate 13. A drill bit 27 is fixedly connected to the end of the spindle of the third motor 22. A rotating rod 26 is rotatably provided on the outer side of the drill bit 27. A ball bearing 14 for reducing frictional resistance is rotatably provided at the bottom end of the rotating rod 26. A paddle 34 is fixedly connected to the lower side of the rotating rod 26.

[0059] A cylindrical enclosure 4 is provided on the outer side of the aforementioned rotating rod 26. A cavity for placing cooling water is opened on the inner side of the enclosure 4. An arc-shaped inner groove 30 is present on the upper side of the cavity. One end of the inner side of the inner groove 30 extends towards the lower side of the rotating rod 26. An outlet channel 15 is opened on the inner side of the upper and lower middle positions of the enclosure 4. A baffle 31 is slidably connected to the inner side of the outlet channel 15. A through hole is opened on the inner side of the baffle 31. A thermal spring 33 is provided on the inner side of the enclosure 4. The two ends of the thermal spring 33 are fixedly connected to the inner side of the enclosure 4 and the bottom end of the baffle 31, respectively. The overlap opening of the through hole and the outlet channel 15 is changed by the thermal extension of the thermal spring 33 due to heat.

[0060] With the above-described configuration, the present invention enables the cooling water to be evenly distributed around the opening during use, reducing the temperature stress generated near the opening and thus improving the stability and accuracy during punching.

[0061] During punching, the third motor 22 drives the drill bit 27 to rotate. The high-speed rotation of the drill bit 27 is accompanied by the contraction of the hydraulic rod 2, which allows the drill bit 27 to penetrate deep into the inner side of the coupling to achieve the hole opening operation.

[0062] The present invention provides a baffle 4 on the outer surface of the opening. The baffle 4 is made of copper and the copper material is used to achieve efficient heat transfer. When using the baffle 4, it is best to use thermal grease to make it adhere to the coupling and achieve efficient heat conduction and adhesion.

[0063] Within the cavity enclosed by the enclosure 4, as the drill bit 27 rotates, the rotation of the drill bit 27 drives the fourth gear 36 to rotate synchronously. The rotation of the fourth gear 36 drives the fifth gear 37 to rotate, which in turn drives the inner ring 38 to rotate. The rotation of the inner ring 38 drives the rotating rod 26 to rotate. Because the diameter of the inner ring 38 is much larger than that of the fifth gear 37, the above-mentioned transmission mechanism can also reduce speed while transmitting power, so that the rotating rod 26 rotates inside the cavity. Under the action of the rotation of the rotating rod 26, the outer paddle 34 will drive the cooling water in the cavity to rotate around the rotating rod 26. With little centrifugal force, the cooling water diffuses outward and rotates continuously, thereby achieving uniform cooling of the opening and reducing the temperature difference generated near the opening.

[0064] At the same time, under the action of centrifugal force, the outermost side of the cooling water will flow back to the rotating rod 26 under the action of the inner groove 30 during the outward expansion process, increasing the flow of liquid at the center of the rotating rod 26 and ensuring the cooling of the center of the drill bit 27.

[0065] During the above liquid circulation process, a portion of the liquid will be discharged under the action of the outlet channel 15. In the initial state, the through hole on the baffle 31 slightly overlaps with the outlet channel 15, and the liquid supply pipe 3 will supply new coolant.

[0066] Meanwhile, as the rotation proceeds and the temperature rises, the thermal spring 33 expands due to heat. Under the expansion of the thermal spring 33, the baffle 31 on its upper side will rise, and the through hole inside it will overlap with the outlet channel 15 and gradually increase in size, thereby increasing the amount of coolant discharged during the circulation process and playing an effective cooling role.

[0067] Meanwhile, during the drilling process, debris generated by the rotation of the drill bit 27 will exist in the circulation of the liquid. The present invention provides a filter screen 32 on the lower side of the inner groove 30. When the cooling water flows back in the action of the inner groove 30, the filter screen 32 can filter the debris in the cooling water. The filter screen 32 is located at the end of the circulation process, which can minimize the resistance of the filter screen 32 in the water circulation process and avoid the debris from interfering with the connection between the drill bit 27 and the punch.

[0068] Furthermore, an outer ring 23 is fixedly connected to the bottom end of the connecting plate 13, and an inner ring 38 is rotatably provided on the inner side of the outer ring 23. A limit rod 24 is fixedly connected to the bottom end of the inner ring 38. The limit rod 24 is slidably connected to the inner side of the top end of the rotating rod 26. A first spring 25 is provided on the outer side of the limit rod 24. The two ends of the first spring 25 are fixedly connected to the top end of the rotating rod 26 and the bottom end of the inner ring 38, respectively.

[0069] Under the above configuration, the outer ring 23 serves to support the inner ring 38. The inner ring 38 drives the rotating rod 26 to rotate through the limiting rod 24. The first spring 25 and the limiting rod 24 serve to compensate for distance and press, so that the bottom end of the rotating rod 26 always contacts the punch.

[0070] Furthermore, a fourth gear 36 is fixedly connected to the outer side of the drill bit 27, a fifth gear 37 is rotatably provided at the bottom end of the connecting disc 13, and the inner side of the inner ring 38 is provided in the shape of a toothed ring. The fifth gear 37 meshes with both the fourth gear 36 and the inner side of the inner ring 38. The rotation of the drill bit 27 drives the rotating rod 26 to decelerate and rotate.

[0071] Furthermore, the aforementioned paddle 34 is arranged in the shape of a right-angled trapezoid, and the width of the lower part of the aforementioned paddle 34 is greater than that of its upper part.

[0072] Under the above configuration, the present invention can also configure the paddle 34 into a right-angled trapezoid shape to increase the rotational force at its bottom and accelerate the water circulation;

[0073] Furthermore, a telescopic rod with elastic telescopic function is fixedly installed between the connecting plate 13 and the enclosure 4.

[0074] Under the above configuration, the present invention may also fix a telescopic rod between the connecting plate 13 and the enclosure 4. The telescopic rod is a prior art telescopic rod with an internal elastic element, which is used to connect the enclosure 4 and make the top of the enclosure 4 fit tightly with the coupling. The telescopic rod is not shown.

[0075] Furthermore, a filter screen 32 is fixedly connected to the inner side of the aforementioned enclosure 4, and the cross-section of the filter screen 32 is concave.

[0076] The cross-section of filter 32 is designed to be concave, which can help collect the intercepted debris.

[0077] Furthermore, the aforementioned enclosure 4 is provided with a coolant supply pipe 3, and a water level sensor 29 for sensing the water level inside the sensor is fixedly connected to the bottom inner side of the enclosure 4.

[0078] Under the above configuration, the liquid supply pipe 3 is used for adding coolant. The coolant inside the liquid supply pipe 3 is driven by a pump. The water level sensor 29 senses the water level by sensing the pressure on its outer side. The power of the pump is linearly related to the reading of the water level sensor 29. When there is less water inside the cavity, the pressure value sensed by the water level sensor 29 is lower, thus increasing the power of the pump. When there is more water inside the cavity, the pressure value sensed by the water level sensor 29 is higher, thus decreasing the power of the pump.

[0079] Example 2

[0080] This embodiment is a further improvement on embodiment 1, such as... Figure 1-11 As shown: An inner disk 10 is rotatably provided on the inner side of the upper disk 5. A gear ring 6 is fixedly connected to the top of the inner disk 10. A first motor 8 is fixedly connected to the top of the upper disk 5. A first gear 7 is fixedly connected to the end of the main shaft of the first motor 8. The first gear 7 and the gear ring 6 mesh with each other. The rotation of the first motor 8 realizes the adjustment of the drill bit 27 above the coupling.

[0081] Under the above configuration, the present invention can adjust the position of the drill bit 27 above the coupling, which facilitates coaxial multi-point drilling. During adjustment, the first motor 8 rotates, and the first motor 8 drives the first gear 7 to rotate. The rotation of the first gear 7 will drive the gear ring 6 and the inner disk 10 to rotate. The rotation of the inner disk 10 is used to drive the drill bit 27 to revolve on the coupling, thereby realizing the adjustment of the position.

[0082] Furthermore, the inner side of the inner disk 10 is provided with a sliding groove, and a slider 12 is slidably connected to the inner side of the sliding groove. The bottom end of the slider 12 is fixedly connected to the top end of the connecting disk 13. A second motor 11 is fixedly connected to the inner side of the inner disk 10. A lead screw 40 is fixedly connected to the end of the main shaft of the second motor 11. The lead screw 40 is helically connected to the inner side of the slider 12. The position of the drill bit 27 on the coupling is adjusted by the rotation of the second motor 11.

[0083] Under the above configuration, the present invention can adjust the position of the drill bit 27 on the coupling, which facilitates the adjustment of the center point position of the punching distance. During adjustment, the second motor 11 drives the lead screw 40 to rotate. The rotation of the lead screw 40 will drive the slider 12 to move back and forth. The movement of the slider 12 will drive the connecting plate 13 and the drill bit 27 to adjust their positions.

[0084] Example 3

[0085] This embodiment is a further improvement of embodiment 1. The base 1 and the upper plate 5 are concentric. A support rod 16 is fixedly connected to the top of the base 1. A load-bearing plate 9 for supporting the coupling is fixedly connected to the outer side of the support rod 16. An inner rod 18 is rotatably arranged on the inner side of the support rod 16. A third gear 19 is fixedly connected to the outer side of the top of the inner rod 18. A second gear 17 is rotatably connected to the top of the support rod 16. The third gear 19 and the second gear 17 mesh with each other. A top plate 20 is fixedly connected to the outer side of the second gear 17. A rubber pad 21 is fixedly connected to the outer side of the top plate 20. By rotating the inner rod 18, multiple top plates 20 can be expanded outward synchronously to achieve positioning of the coupling. A fourth motor 28 is fixedly connected to the inner side of the base 1. A worm gear 39 is fixedly connected to the end of the main shaft of the fourth motor 28. A worm wheel 35 is fixedly connected to the bottom of the support rod 16. The worm gear 39 meshes with the worm wheel 35.

[0086] Under the above configuration, the present invention can achieve coaxial setting of the punching point of the coupling during punching, ensuring the accuracy of the coupling connection. In use, the coupling is sleeved on the support rod 16 and placed on the load-bearing plate 9. Then, the fourth motor 28 rotates, which drives the worm gear 39 to rotate. The rotation of the worm gear 39 drives the worm wheel 35 to rotate. During the rotation of the worm wheel 35, the worm wheel 35 drives the inner rod 18 to rotate. The rotation of the inner rod 18 drives the outer fourth gear 36 to rotate. The rotation of the fourth gear 36 drives the second gear 17 to rotate. The rotation of the second gear 17 drives the outer top plate 20 to rotate. The rotation of the top plate 20 limits and supports the interior of the coupling, thereby fixing the coupling and automatically adjusting the position of the coupling so that the center line of the coupling overlaps with the support rod 16, which facilitates subsequent fixed-point punching. The rubber pad 21 can increase friction and prevent the top plate 20 from scratching the interior of the coupling.

[0087] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface-point punching device for high-precision coupling machining, characterized in that: Includes a base (1), a hydraulic rod (2) is fixedly connected to the top of the base (1), an upper plate (5) is fixedly connected to the upper movable end of the hydraulic rod (2), a connecting plate (13) is provided on the lower side of the upper plate (5), a third motor (22) is fixedly connected to the inner side of the connecting plate (13), a drill bit (27) is fixedly connected to the end of the spindle of the third motor (22), a rotating rod (26) is rotatably provided on the outer side of the drill bit (27), a ball bearing (14) for reducing frictional resistance is rotatably provided at the bottom end of the rotating rod (26), and a paddle (34) is fixedly connected to the lower side of the rotating rod (26). A cylindrical enclosure (4) is provided on the outer side of the rotating rod (26). A cavity for placing cooling water is opened on the inner side of the enclosure (4). An arc-shaped groove (30) is present on the upper side of the cavity. The inner end of the groove (30) extends towards the lower side of the rotating rod (26). An outlet channel (15) is opened on the inner side of the upper and lower middle position of the enclosure (4). A baffle (31) is slidably connected to the inner side of the outlet channel (15). A through hole is opened on the inner side of the baffle (31). A thermal spring (33) is provided on the inner side of the enclosure (4). The two ends of the thermal spring (33) are fixedly connected to the inner side of the enclosure (4) and the bottom end of the baffle (31) respectively. The overlap opening of the through hole and the outlet channel (15) is changed by the thermal extension of the thermal spring (33) due to heat. The bottom end of the connecting plate (13) is fixedly connected to An outer ring (23) is connected to the inner ring (38) which is rotatably provided on the inner side of the outer ring (23). A limit rod (24) is fixedly connected to the bottom end of the inner ring (38). The limit rod (24) is slidably connected to the inner side of the top end of the rotating rod (26). A first spring (25) is provided on the outer side of the limit rod (24). The two ends of the first spring (25) are fixedly connected to the top end of the rotating rod (26) and the bottom end of the inner ring (38), respectively. A fourth gear (36) is fixedly connected to the outer side of the drill bit (27). A fifth gear (37) is rotatably provided at the bottom end of the connecting disc (13). The inner side of the inner ring (38) is arranged in a toothed ring shape. The fifth gear (37) meshes with the fourth gear (36) and the inner side of the inner ring (38). The rotation of the drill bit (27) drives the rotating rod (26) to decelerate and rotate.

2. The surface-point punching device for high-precision coupling machining according to claim 1, characterized in that: The paddle (34) is arranged in the shape of a right trapezoid, and the width of the lower part of the paddle (34) is greater than that of the upper part.

3. The surface-point punching device for high-precision coupling machining according to claim 2, characterized in that: A telescopic rod with elastic telescopic function is fixedly installed between the connecting plate (13) and the enclosure (4).

4. The surface-point punching device for high-precision coupling machining according to claim 3, characterized in that: A filter screen (32) is fixedly connected to the inner side of the enclosure (4), and the cross section of the filter screen (32) is concave.

5. The surface-point punching device for high-precision coupling machining according to claim 4, characterized in that: An inner disc (10) is rotatably provided on the inner side of the upper disc (5). A gear ring (6) is fixedly connected to the top of the inner disc (10). A first motor (8) is fixedly connected to the top of the upper disc (5). A first gear (7) is fixedly connected to the end of the main shaft of the first motor (8). The first gear (7) and the gear ring (6) mesh with each other. The drill bit (27) is adjusted in position above the coupling by rotating the first motor (8).

6. The surface-point punching device for high-precision coupling machining according to claim 5, characterized in that: The inner side of the inner disk (10) is provided with a sliding groove, and a slider (12) is slidably connected to the inner side of the sliding groove. The bottom end of the slider (12) is fixedly connected to the top end of the connecting disk (13). A second motor (11) is fixedly connected to the inner side of the inner disk (10). A lead screw (40) is fixedly connected to the end of the main shaft of the second motor (11). The lead screw (40) is spirally connected to the inner side of the slider (12). The position of the drill bit (27) on the coupling is adjusted by the rotation of the second motor (11).

7. The surface-point punching device for high-precision coupling machining according to any one of claims 1-6, characterized in that: The base (1) and the upper plate (5) are concentric. A support rod (16) is fixedly connected to the top of the base (1). A load-bearing plate (9) for supporting the coupling is fixedly connected to the outer side of the support rod (16). An inner rod (18) is rotatably arranged on the inner side of the support rod (16). A third gear (19) is fixedly connected to the outer side of the top of the inner rod (18). A second gear (17) is rotatably connected to the top of the support rod (16). The third gear (19) meshes with the second gear (17). (17) has a top plate (20) fixedly connected to its outer side. A rubber pad (21) is fixedly connected to the outer side of the top plate (20). By rotating the inner rod (18), multiple top plates (20) can be expanded outward synchronously to achieve the positioning of the coupling. A fourth motor (28) is fixedly connected to the inner side of the base (1). A worm gear (39) is fixedly connected to the end of the main shaft of the fourth motor (28). A worm wheel (35) is fixedly connected to the bottom end of the support rod (16). The worm gear (39) meshes with the worm wheel (35).

8. The surface-point punching device for high-precision coupling machining according to any one of claims 1-6, characterized in that: The enclosure (4) is provided with a supply pipe (3) for adding coolant, and a water level sensor (29) for sensing the water level inside the sensor is fixedly connected to the bottom inner side of the enclosure (4).

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