Nut automatic tapping machine and automatic tapping method

Abstract

The application provides a nut automatic tapping machine and automatic tapping method, and relates to the technical field of nut processing. The nut automatic tapping machine comprises a base, a square groove is formed in the middle of the top of the base, a top plate is arranged above the base, a driving mechanism is arranged on the top plate, a tapping mechanism is arranged at the bottom end of the driving mechanism, a fixing assembly is arranged, the fixing assembly comprises a placing cylinder, a driven assembly, an adjusting mechanism, a clamping mechanism and a fastening assembly, the placing cylinder is arranged directly above the square groove, a placing groove is formed in the middle of the top of the placing cylinder, and the clamping mechanism is arranged on both sides of the placing groove and used for clamping the nut in the placing groove. The nut automatic tapping machine and automatic tapping method provided by the application realize the continuous stacking processing of multiple nuts, the synchronization of tapping and fastening, the dripping and recycling of tapping oil, the classified collection of finished products, scraps and tapping oil and the automatic feeding through the linkage of the fixing assembly, the tapping mechanism, the blanking mechanism and the collecting assembly.

Description

Technical Field

[0001] This invention belongs to the field of nut processing technology, specifically, it relates to an automatic nut tapping machine and an automatic tapping method. Background Technology

[0002] As an indispensable fastening component in the machinery manufacturing industry, the machining accuracy of the internal threads of nuts directly determines the reliability and service life of the nut connection. The tapping process is the core process in nut production, and its processing efficiency and quality have a decisive impact on the large-scale production of nuts. With the development of manufacturing towards automation and high efficiency, automatic nut tapping machines have been widely used in the nut processing industry, replacing traditional manual tapping and significantly improving production efficiency.

[0003] In the existing technology, automatic nut tapping machines mostly use vibratory feeders to feed single nuts, which is complex in structure, prone to jamming and stacking, and cannot realize continuous processing of multiple nuts. The manual loading, unloading, sorting, collection and recycling of nuts is a large workload. Some stacking feeding equipment has unstable positioning problems, and tapping and tightening are not synchronized, which increases the cost and complexity of the equipment. It is also prone to problems such as nut displacement, thread stripping, and tap breakage, which affect the processing accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic nut tapping machine and automatic tapping method, which solves the technical problems in related technologies such as low nut tapping material feeding efficiency, asynchronous tapping and tightening, waste of tapping oil that cannot be recycled, difficulty in classifying and collecting finished products, chips and tapping oil, and inconvenience in unloading.

[0005] At least one embodiment of the present invention provides an automatic nut tapping machine, comprising: The base has a square groove in the middle of the top, a top plate on the top, a drive mechanism on the top plate, and a tapping mechanism at the bottom of the drive mechanism. The fixing component includes a placement cylinder, a driven component, an adjusting mechanism, a clamping mechanism, and a fastening component. The placement cylinder is positioned directly above a square groove, and a placement slot is formed at the center of the top of the placement cylinder. The clamping mechanism is located on both sides of the placement slot to clamp a nut located inside the placement slot. One end of the adjusting mechanism is located inside the placement slot to drive the nut to move upward. The driven component and the fastening component cooperate to fix the top nut. A collection component, located inside a square groove, is used to classify and collect nuts, chips, and tapping fluid. The feeding mechanism, located on one side of the fastening assembly, is used to push the tapped nut to feed the material.

[0006] For example, in an automatic nut tapping machine provided in at least one embodiment of the present invention, a side plate is fixedly installed at one end of the top of the base, the top of the side plate and one end of the top plate are fixedly connected, the driving mechanism includes a top frame and a first cylinder, the top frame is fixedly installed at the middle position of the top of the top plate, one end of the first cylinder is fixedly installed at the top inside the top of the top frame, and the other end of the first cylinder penetrates through the top plate.

[0007] For example, in an automatic nut tapping machine provided in at least one embodiment of the present invention, the tapping mechanism includes a connecting frame, a tapping machine, and a connecting block. The top of the connecting frame is fixedly connected to the bottom of the first cylinder, and the bottom of the connecting frame is fixedly connected to the top of the connecting block. The tapping machine is embedded in the middle of the connecting block, and the tapping cutter provided at the bottom of the tapping machine penetrates the connecting block. An active component is provided on one side of the bottom of the connecting block, and the active component includes a toothed plate.

[0008] For example, in an automatic nut tapping machine provided by at least one embodiment of the present invention, a limiting plate is fixedly installed at the rear position of the top of the base. A connecting column is fixedly installed on the front wall of the limiting plate. One end of the connecting column is fixedly connected to the rear side wall of the placement cylinder. The bottom wall of the placement groove inside the placement cylinder has several slots. The adjustment mechanism includes a motor, which is fixedly installed on the front wall of the placement cylinder. A one-way screw is fixedly installed at the output end of the motor. A top block is provided on the top of the one-way screw. One end of the top block is fixedly installed on the upper end of the front wall of the placement cylinder. The top end of the one-way screw is rotatably installed on the bottom wall of the top block. A connecting plate is threadedly connected to the surface of the one-way screw. A moving groove is provided on the front wall of the placement cylinder. The rear end of the connecting plate passes through the moving groove and is located inside the placement groove. A connecting ring is fixedly installed on one end of the connecting plate inside the placement groove. A guide rod is provided on the inner ring of the connecting ring. The bottom end of the guide rod is fixedly installed on the bottom wall of the placement groove. The diameter of the guide rod is smaller than the diameter of the inner ring of the connecting ring.

[0009] For example, in an automatic nut tapping machine provided in at least one embodiment of the present invention, the clamping mechanism includes a connecting frame, an electric telescopic rod, and a clamping plate. The placement groove has symmetrical clamping grooves on both sides. The connecting frame is fixedly installed on the side walls of the placement cylinder. One end of the electric telescopic rod is fixedly installed on the inner side wall of the connecting frame. The other end of the electric telescopic rod passes through the placement cylinder and is located inside the clamping groove. The end of the electric telescopic rod located in the clamping groove is fixedly connected to one side wall of the clamping plate. The other side wall of the clamping plate is provided with a rubber layer.

[0010] For example, in an automatic nut tapping machine provided by at least one embodiment of the present invention, the driven component includes a gear, a fixed block, a bidirectional screw, and a moving block. Two fixed blocks are symmetrically fixedly installed on the upper end of the rear side wall of the placement cylinder. The two ends of the bidirectional screw are rotatably installed on the fixed blocks near one end. One end of the gear is rotatably installed on one end of one of the fixed blocks. The other end of the rotating shaft passes through the fixed block and is fixedly connected to one end of the bidirectional screw. The moving blocks are symmetrically threaded onto the surface of the bidirectional screw. Adjustment grooves are respectively opened on both sides of the upper end of the placement groove. The rear end of the adjustment groove passes through the placement cylinder and is opened into a through groove. The front ends of the two moving blocks are located in the through groove.

[0011] For example, in an automatic nut tapping machine provided by at least one embodiment of the present invention, the fastening assembly includes two pressure caps, a clamping plate, a limiting block, and a square block. The two limiting blocks are located inside the adjusting groove. The rear end of the limiting block is fixedly connected to the front end of the moving block. A connecting groove is provided through the upper end of the adjusting groove. The top of the limiting block is fixedly connected to the bottom end of the square block. The square block is located inside the connecting groove. The clamping plate is located at the top of the placement cylinder. The top of the square block is fixedly connected to the bottom wall of the clamping plate. The top of the clamping plate is fixedly connected to the bottom wall of the pressure cap.

[0012] For example, in an automatic nut tapping machine provided by at least one embodiment of the present invention, the feeding mechanism includes a support plate, a support rod, a stop plate, a second cylinder, a placement pad, a first push plate, a spring, a second push plate, and a silicone pad. The support plate is fixedly installed on the side wall of the side plate. The support rod is located at the bottom end of the support plate. One end of the support rod is fixedly connected to the bottom wall of the support plate, and the other end of the support rod is fixedly connected to the side wall of the side plate. The bottom end of the stop plate is fixedly installed on the top end of the support plate. The rear end of the second cylinder is fixedly installed on the side wall of the stop plate, and the other end of the second cylinder is fixedly connected to the first push plate. A spring is provided at the end of the first push plate away from the second cylinder, and the second push plate is provided at the other end of the spring. Both ends of the spring are fixedly connected to the first push plate and the second push plate, respectively. The silicone pad is provided on the side wall of the second push plate away from the spring.

[0013] For example, in an automatic nut tapping machine provided by at least one embodiment of the present invention, the collection component includes a liquid collection frame, a filter frame, a partition, a block, a placement plate, a first handle, and a second handle. The liquid collection frame is placed inside a square groove. A pull groove is formed through one side wall of the placement groove. A rotating plate is rotatably connected inside the pull groove. A pull block is fixedly installed on the surface of the rotating plate. The filter frame is placed inside the upper part of the liquid collection frame. The placement plate is fixedly installed at the top of the front and rear ends of the filter frame. Support blocks are fixedly installed on both sides of the middle position inside the filter frame. The partition is placed on top of the support blocks. The partition has a hollow structure. The first handle is symmetrically fixedly installed on the top of the placement plate. The second handle is symmetrically fixedly installed at both ends of the top of the partition. A slot is formed on one side wall of the liquid collection frame. An outlet groove is formed on the bottom of the slot on one side wall of the liquid collection frame. A block is provided in the outlet groove.

[0014] Preferably, the specific steps for rotating and tapping the nut to be tapped are as follows: S1: Multiple nuts with pre-drilled holes are stacked from top to bottom into the placement slot of the placement cylinder. The electric telescopic rod of the clamping mechanism pushes the clamping plate to perform initial clamping and positioning of the stacked nuts.

[0015] S: The first cylinder of the drive mechanism drives the tapping mechanism to move downward. When the tapping mechanism approaches the top nut, the tapping oil dripping component drips tapping oil into the tap and nut machining position.

[0016] S3: The tapping mechanism continues to move downwards, and the toothed plate of the driving component drives the gear and the double-acting screw of the driven component to rotate, driving the clamping plate and the pressure plate of the fastening component to close towards the center, further clamping and fixing the topmost nut. S4: The tapping mechanism drives the tap to rotate, and the first cylinder continues to push the tapping mechanism downward. The tap performs tapping on the pre-drilled hole in the nut, and the tapping oil continuously lubricates and cools the hole. S5: After tapping is completed, the tapping machine stops working. The first cylinder drives the tapping mechanism to move upward and reset. The driving component drives the driven component to move in the opposite direction. The fastening component loosens its fixation on the nut, and the tapping oil dripping stops. S6: The motor driving the adjustment mechanism rotates the one-way lead screw, which moves the connecting ring upward and pushes the tapped nut out of the placement slot. The second cylinder of the feeding mechanism pushes the second push plate and pushes the nut into the collection assembly.

[0017] S7: The collection component classifies and collects nuts, debris, and tapping oil through partitions, filter frames, and liquid collection frames. The tapping oil in the liquid collection frame can be discharged and recycled through the liquid outlet. The remaining nuts continue to be positioned and the cycle continues to tap the next nut.

[0018] Compared with the prior art, the automatic nut tapping machine provided in this embodiment of the invention, through the cooperation of a fixing component, a tapping mechanism, a feeding mechanism, a collecting component, and a tapping oil dripping component, achieves stacked feeding of multiple nuts to be tapped through the placement groove of the placing cylinder. The electric telescopic rod and clamping plate of the clamping mechanism provide initial limiting and positioning of the stacked nuts, avoiding jamming and stacking problems, and enabling continuous processing of multiple nuts. Through the linkage of the toothed plate of the active component and the gears and bidirectional screw of the driven component, the downward movement of the tapping mechanism is synchronized with the clamping of the fastening component, and the upward movement of the tapping mechanism is synchronized with the loosening and resetting of the fastening component, improving tapping accuracy. The tapping oil dripping component... Linked with the tapping mechanism, tapping oil is precisely dripped when the tapping mechanism moves to the top of the nut. The dripping stops synchronously after tapping is completed. With the help of the baffle, filter frame, and liquid collection frame of the collection component, tapping oil, debris and finished nuts are collected separately. The tapping oil can be discharged and recycled through the liquid outlet, avoiding tapping oil waste and pollution problems, and reducing consumable costs. The motor, one-way screw and connecting ring of the adjustment mechanism push the tapped nut out of the placement slot. With the help of the second cylinder, spring and second push plate of the feeding mechanism, automatic feeding is achieved without manual intervention, reducing labor intensity and avoiding feeding jams and scratches on nuts. Different specifications of nuts can be adapted by adjusting the size of the placement slot and clamping plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an automatic nut tapping machine provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the front structure of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 5 This is a schematic diagram of the inclined structure of the fixing component of the present invention; Figure 6 This is a partial cross-sectional view of the fixing component of the present invention; Figure 7 This is a schematic diagram of the structure of the components used in this invention; Figure 8 This is a schematic diagram of the feeding mechanism of the present invention.

[0021] In the diagram: 1. Base; 2. Side plate; 3. Top plate; 4. Drive mechanism; 41. Top frame; 42. First cylinder; 5. Tapping mechanism; 51. Connecting frame; 52. Tapping machine; 53. Connecting block; 6. Active component; 7. Fixed component; 71. Driven component; 711. Gear; 712. Fixed block; 713. Bidirectional lead screw; 714. Moving block; 72. Adjusting mechanism; 721. Motor; 722. Connecting plate; 723. Connecting ring; 724. Unidirectional lead screw; 725. Top block; 73. Clamping mechanism; 731. Connecting frame; 732. Electric telescopic rod; 733. Clamping plate; 74. Guide rod; 75. Fastening component; 751. Pressure cap; 752. Clamping plate; 753. Limiting block; 754. Square block; 8. Feeding mechanism; 81. Support plate; 82. Support rod; 83. Abutment plate; 84. Second cylinder; 85. Placement pad; 86. First push plate; 87. Spring; 88. Second push plate; 89. Silicone pad; 9. Collection assembly; 91. Liquid collection frame; 92. Filter frame; 93. Partition plate; 94. Block; 95. Placement plate; 96. First handle; 97. Second handle; 10. Pulling groove; 11. Moving groove; 12. Placement groove; 13. Adjusting groove; 14. Through groove; 15. Connecting groove; 16. Leaking groove; 17. Carding groove; 18. Pulling block; 19. Rotating plate; 20. Liquid outlet groove; 21. Limiting plate; 22. Connecting column. Detailed Implementation The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0023] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character "" in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0026] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0027] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0028] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0029] like Figures 1-5 As shown, it illustrates an automatic nut tapping machine according to an embodiment of the present invention, comprising: The base 1 has a square groove in the middle of its top. A top plate 3 is installed above the base 1, and a drive mechanism 4 is installed on the top plate 3. A tapping mechanism 5 is installed at the bottom of the drive mechanism 4. The tapping mechanism 5 is equipped with a tapping oil dripping component, which is a conventional configuration in the prior art. It includes a tapping oil storage box, an oil supply pipe, and an oil dripping nozzle. The oil dripping nozzle is connected to the storage box through the oil supply pipe. The switch of the oil dripping nozzle is linked to the first cylinder 42. When the first cylinder 42 moves the tapping mechanism 5 down to the top of the nut, the oil dripping nozzle automatically opens and drips tapping oil. When tapping is finished and the first cylinder 42 moves the tapping mechanism 5 up, the oil dripping nozzle automatically closes to avoid wasting tapping oil.

[0030] The fixing component 7 includes a placement cylinder, a driven component 71, an adjusting mechanism 72, a clamping mechanism 73, and a fastening component 75. The placement cylinder is positioned directly above the square slot. A placement slot 12 is provided at the center of the top of the placement cylinder. The clamping mechanism 73 is located on both sides of the placement slot 12 to clamp the nuts located inside the placement slot 12. One end of the adjusting mechanism 72 is located inside the placement slot 12 to drive the nuts to move upward. The driven component 71 and the fastening component 75 cooperate to fix the top nuts. The position of the placement cylinder is coaxially aligned with the tapping tool of the tapping mechanism 5. The placement cylinder has a vertical cylindrical structure. The placement slot 12 is a hexagonal through hole that matches the outer contour of the hexagonal nut and is used to stack multiple tapping nuts from top to bottom. Several drainage slots 16 are provided on the bottom wall of the placement slot 12. The drainage slots 16 are circular through holes and are used to allow tapping oil to fall into the collection component 9 below during the tapping process. Collection component 9, located inside a square groove, is used to classify and collect nuts, chips, and tapping fluid. The feeding mechanism 8 is located on one side of the fastening assembly 75 and is used to push the tapped nut to feed it.

[0031] Please see Figure 2 In some embodiments, a side plate 2 is fixedly installed at one end of the top of the base 1, and the top of the side plate 2 is fixedly connected to one end of the top plate 3. The drive mechanism 4 includes a top frame 41 and a first cylinder 42. The output end of the first cylinder 42 faces downward and passes through the reserved hole in the top plate 3. The first cylinder 42 is an adjustable speed cylinder, which can control the downward movement speed of the tapping mechanism 5 and adapt to the tapping requirements of nuts of different materials. The top frame 41 is fixedly installed at the middle position of the top of the top plate 3. One end of the first cylinder 42 is fixedly installed at the top inside the top of the top frame 41, and the other end of the first cylinder 42 passes through the top plate 3.

[0032] When the drive mechanism 4 is activated, the first cylinder 42 extends, causing the tapping mechanism 5 to move downward. The connecting block 53 of the tapping mechanism 5 causes the toothed plate of the active component 6 to move downward, and the toothed plate meshes with the driven component 71.

[0033] Please see Figure 4In some embodiments, the driven component 71 includes a gear 711, a fixed block 712, a bidirectional lead screw 713, and a moving block 714. Two fixed blocks 712 are symmetrically fixedly mounted on the upper rear side wall of the placement cylinder. The two ends of the bidirectional lead screw 713 are rotatably mounted on the fixed blocks 712 near one end. One end of the gear 711 is rotatably mounted on one end of one of the fixed blocks 712, and the other end of the shaft passes through the fixed block 712 and is fixedly connected to one end of the bidirectional lead screw 713. The moving blocks 714 are symmetrically threaded onto the surface of the bidirectional lead screw 713. Adjustment grooves 13 are respectively opened on both sides of the upper end of the placement groove 12. The rear end of the adjustment groove 13 passes through the placement cylinder and has a through groove 14. The front ends of the two moving blocks 714 are located within the through groove 14. Bearing holes are opened at the opposite ends of the two fixed blocks 712. The two ends of the bidirectional lead screw 713 are rotatably mounted on the fixed blocks 712 via bearings. Inside the bearing holes of the two fixed blocks 712, the surface of the bidirectional lead screw 713 is provided with two sections of threads, one positive and one negative. One end of the gear 711 is rotatably mounted on one end of one of the fixed blocks 712 via a rotating shaft. The other end of the rotating shaft passes through the bearing hole of the fixed block 712 and is fixedly connected to one end of the bidirectional lead screw 713 via a coupling. The gear 711 meshes with the toothed plate of the active component 6. When the toothed plate moves up and down with the tapping mechanism 5, it can drive the gear 711 to rotate, thereby driving the bidirectional lead screw 713 to rotate. The moving blocks 714 are symmetrically threaded onto the positive and negative threaded sections of the bidirectional lead screw 713. Adjustment grooves 13 are respectively opened on both sides of the upper end of the placement groove 12. The rear end of the adjustment groove 13 passes through the rear side wall of the placement cylinder and is provided with a through groove 14. The front ends of the two moving blocks 714 pass through the through groove 14 and extend into the interior of the adjustment groove 13, and can move horizontally along the adjustment groove 13.

[0034] The toothed plate meshes with the gear 711 of the driven assembly 71, driving the gear 711 to rotate. The gear 711 drives the bidirectional lead screw 713 to rotate between the two fixed blocks 712. The surface of the bidirectional lead screw 713 is provided with positive and negative threads. The two moving blocks 714 move synchronously towards the center under the drive of the bidirectional lead screw 713. The moving blocks 714 drive the fastening assembly 75 to move towards the center until it fits against the top of the top nut to further fix the top nut.

[0035] Please see Figure 4 and Figure 6In some embodiments, the fastening assembly 75 includes two pressure caps 751, a clamping plate 752, a limiting block 753, and a square block 754. The two limiting blocks 753 are located inside the adjusting groove 13, and the rear ends of the limiting blocks 753 are fixedly connected to the front ends of the moving block 714. A connecting groove 15 is provided through the upper end of the adjusting groove 13. The top of the limiting block 753 is fixedly connected to the bottom end of the square block 754, and the square block 754 is located inside the connecting groove 15. The clamping plate 752 is located at the top of the placement cylinder, and an elastic rubber pad is provided on the inner wall of the clamping plate 752. The top of the square block 754 is fixedly connected to the bottom end of the square block 754. The bottom wall of clamping plate 752 is fixedly connected, and the top of clamping plate 752 is fixedly connected to the bottom wall of pressure cap 751. Square block 754 is located inside connecting groove 15 and can move horizontally along connecting groove 15. Clamping plate 752 is a plate-shaped structure adapted to the outer contour of hexagonal nut and is located at the top of placement cylinder. The tops of two square blocks 754 are fixedly connected to the bottom wall of clamping plate 752. Pressure cap 751 is a plate-shaped structure adapted to the outer contour of hexagonal nut and is adapted to the top of nut for pressing the top of nut. It works with clamping plate 752 to fix the top nut. Driven by the bidirectional lead screw 713, the two moving blocks 714 move towards the center along the through groove 14. The moving blocks 714 drive the limiting block 753 and the square block 754 to move towards the center along the adjusting groove 13 and the connecting groove 15, which in turn drives the clamping plate 752 and the pressure cap 751 to move towards the center until the pressure cap 751 is in contact with the top of the nut at the top of the placement groove 12, and the clamping plate 752 is in contact with the side of the nut, thus fixing the top nut. When the tapping mechanism 5 moves down to the top of the top nut, the tapping oil drip nozzle automatically opens and drips tapping oil into the nut, so that the tapping mechanism moves down, tightens synchronously, and drips oil synchronously, ensuring that the nut is firmly fixed and lubricated synchronously before tapping.

[0036] Please see Figure 2 and Figure 3 In some embodiments, the tapping mechanism 5 includes a connecting frame 51, a tapping machine 52, and a connecting block 53. The top of the connecting frame 51 is fixedly connected to the bottom of the first cylinder 42, and the bottom of the connecting frame 51 is fixedly connected to the top of the connecting block 53. The tapping machine 52 is embedded in the middle of the connecting block 53. The tapping cutter at the bottom of the tapping machine 52 penetrates the connecting block 53. An active component 6 is provided on one side of the bottom of the connecting block 53. The active component 6 includes a toothed plate.

[0037] The bottom of the connecting frame 51 is welded and fixed to the top of the connecting block 53. The connecting block 53 is a square block structure with a mounting hole in the middle. The tapping machine 52 is embedded in the mounting hole. The tapping cutter at the bottom of the tapping machine 52 penetrates the bottom wall of the connecting block 53 and faces the placement cylinder. The active component 6 is fixedly installed on one side of the bottom of the connecting block 53 by bolts. The active component 6 includes a toothed plate with a rectangular toothed structure, which is used to cooperate with the driven component 71 to realize the linkage between the tapping mechanism 5 and the fastening component 75. After the fastening component 75 finishes fastening the top nut and the tapping oil is dripped in, the control system starts the tapping machine 52. The tapping machine 52 drives the tapping cutter to rotate. At the same time, the first cylinder 42 continues to extend, driving the tapping cutter to slowly move down and tap into the smooth hole of the top nut for thread processing. During the tapping process, the tapping oil drips in, which plays a role in cooling and lubrication, reducing the wear of the tapping cutter and the scratching of the thread. The fallen debris and excess tapping oil fall into the collection component 9 below.

[0038] When the tapping tool reaches the preset depth and the tapping is completed, the control system controls the tapping machine 52 to stop rotating. At the same time, it controls the first cylinder 42 to retract, driving the tapping mechanism 5 to move upward and reset. The tapping mechanism 5 drives the toothed plate of the active component 6 to move upward synchronously. The toothed plate drives the gear 711 to rotate in the opposite direction, which in turn drives the bidirectional lead screw 713 to rotate in the opposite direction. The two moving blocks 714 move synchronously to both sides, driving the clamping plate 752 and the pressure plate 751 of the fastening component 75 to move to both sides. The oil dripping nozzle of the tapping oil dripping component automatically closes, stopping the oil dripping.

[0039] Please see Figure 4 and Figure 5In some embodiments, a limiting plate 21 is fixedly installed at the rear top of the base 1. A connecting column 22 is fixedly installed on the front wall of the limiting plate 21. One end of the connecting column 22 is fixedly connected to the rear side wall of the placement cylinder. The bottom wall of the placement groove 12 inside the placement cylinder has several perforated grooves 16. The adjusting mechanism 72 includes a motor 721, which is fixedly installed on the front wall of the placement cylinder. A one-way screw 724 is fixedly installed at the output end of the motor 721. A top block 725 is provided on the top of the one-way screw 724. One end of the top block 725 is fixedly installed on the upper end of the front wall of the placement cylinder. The top end of the one-way screw 724 is rotatably installed on the bottom wall of the top block 725. A connecting plate 722 is threadedly connected to the surface of the one-way screw 724. A moving groove 11 is provided on the front wall of the placement cylinder. The rear end of the connecting plate 722 passes through the moving groove 11 and is located inside the placement groove 12. A connecting ring 723 is fixedly installed at one end of the connecting plate 722 inside the placement groove 12. The inner ring of the connecting ring 723 is provided with a guide rod 74. The bottom end of the guide rod 74 is fixedly installed on the bottom wall of the placement groove 12. The diameter of the guide rod 74 is smaller than the diameter of the inner ring of the connecting ring 723. The output end of the motor 721 is fixedly installed with a one-way screw 724 through a coupling. The one-way screw 724 is vertically set and has a top block 725 on top. The top block 725 is a square block structure. One end is fixedly installed on the upper end of the front wall of the placement cylinder by bolts. The top end of the one-way screw 724 is rotatably installed on the bottom wall of the top block 725 through a bearing to ensure that the one-way screw 724 rotates smoothly. The inner ring of the connecting ring 723 is provided with a guide rod 74. The guide rod 74 is a cylindrical structure. The bottom end is fixedly installed on the bottom wall of the placement groove 12 by welding. The diameter of the guide rod 74 is smaller than the diameter of the inner ring of the connecting ring 723, so that the connecting ring 723 can move vertically along the guide rod 74, which plays a guiding role and prevents the connecting plate 722 from shifting when it moves.

[0040] After the fastening assembly 75 is loosened, the control system starts the motor 721 of the adjustment mechanism 72. The motor 721 drives the one-way screw 724 to rotate. Under the drive of the one-way screw 724, the connecting plate 722 moves upward along the moving groove 11. The connecting plate 722 drives the connecting ring 723 to move upward along the guide rod 74. The connecting ring 723 pushes the multiple nuts in the placement groove 12 to move upward, pushing the uppermost tapped nut out of the placement groove 12. When the nut is pushed out to the preset position, the motor 721 stops working.

[0041] Please see Figure 8In some embodiments, the feeding mechanism 8 includes a support plate 81, a support rod 82, a stop plate 83, a second cylinder 84, a placement pad 85, a first push plate 86, a spring 87, a second push plate 88, and a silicone pad 89. The support plate 81 is fixedly installed on the side wall of the side plate 2. The support rod 82 is located at the bottom end of the support plate 81. One end of the support rod 82 is fixedly connected to the bottom wall of the support plate 81, and the other end of the support rod 82 is fixedly connected to the side wall of the side plate 2. The bottom end of the stop plate 83 is fixedly installed at one end of the top of the support plate 81. The rear end of the second cylinder 84 is fixed. Installed on one side wall of the abutment plate 83, the other end of the second cylinder 84 is fixedly connected to the first push plate 86. A spring 87 is provided at one end of the first push plate 86 away from the second cylinder 84, and a second push plate 88 is provided at the other end of the spring 87. The two ends of the spring 87 are fixedly connected to the first push plate 86 and the second push plate 88 respectively. A silicone pad 89 is provided on the side wall of the second push plate 88 away from the spring 87. The silicone pad 89 is pasted on the side wall of the second push plate 88 away from the spring 87 and is used to contact the tapped nut to avoid scratching the nut surface when pushing.

[0042] When the nut is pushed out to the preset position, the motor 721 stops working, and the control system starts the second cylinder 84 of the feeding mechanism 8. The second cylinder 84 extends, driving the first push plate 86, spring 87, and second push plate 88 to move towards the tapped nut until the silicone pad 89 of the second push plate 88 contacts the nut surface. It continues to push the nut, causing the nut to detach from the placement cylinder and fall into the collection component 9 below. After the feeding is completed, the second cylinder 84 retracts, driving the component to reset.

[0043] Please see Figure 7 In some embodiments, the collection component 9 includes a liquid collection frame 91, a filter frame 92, a partition 93, a block 94, a placement plate 95, a first handle 96, and a second handle 97. The liquid collection frame 91 is placed inside a square groove. A pull groove 10 is provided through one side wall of the placement groove 12. A rotating plate 19 is rotatably connected inside the pull groove 10. A pull block 18 is fixedly installed on the surface of the rotating plate 19. The filter frame 92 is placed inside the upper part of the liquid collection frame 91. The placement plate 95 is fixedly installed at the top of the front and rear ends of the filter frame 92. Support blocks are fixedly installed on both sides of the middle position inside the filter frame 92. The partition 93 is placed on top of the support blocks. The partition 93 has a hollow structure. The first handle 96 is symmetrically fixedly installed on the top of the placement plate 95. The second handle 97 is symmetrically fixedly installed at both ends of the top of the partition 93. A slot 17 is provided on one side wall of the liquid collection frame 91. An outlet groove 20 is provided on the bottom position of the slot 17 on one side wall of the liquid collection frame 91. A block 94 is provided inside the outlet groove 20.

[0044] The silicone pad 89 of the second push plate 88 contacts the surface of the nut, continuing to push the nut so that it detaches from the placement cylinder and falls to the collection component 9 below. The tapped nut falls onto the partition plate 93, which has a hollow structure. The debris and tapping oil remaining on the surface of the nut fall into the filter frame 92 below through the hollow holes of the partition plate 93. The filter holes of the filter frame 92 can trap the debris, while the tapping oil falls into the liquid collection frame 91 through the filter holes, realizing the classified collection of nuts, debris, and tapping oil. When the tapping oil in the liquid collection frame 91 reaches a certain amount, the operator removes the block 94 and discharges the recovered tapping oil through the liquid outlet 20, pouring it back into the tapping oil storage box to realize the reuse of tapping oil. When there is a lot of debris accumulated in the filter frame 92, the filter frame 92 can be removed through the first handle 96 to clean the debris. When there is a lot of finished nuts accumulated on the partition plate 93, the partition plate 93 can be removed through the second handle 97 to collect the finished nuts.

[0045] Please see Figure 4 and Figure 6 In some embodiments, the clamping mechanism 73 includes a connecting frame 731, an electric telescopic rod 732, and a clamping plate 733. The placement groove 12 has symmetrical clamping grooves on both sides. The connecting frame 731 is fixedly installed on the side walls of the placement cylinder. One end of the electric telescopic rod 732 is fixedly installed on the inner side wall of the connecting frame 731. The other end of the electric telescopic rod 732 passes through the placement cylinder and is located inside the clamping groove. The electric telescopic rod 732 is fixedly connected to one side wall of the clamping plate 733 at one end of the clamping groove. The other side wall of the clamping plate 733 is provided with a rubber layer.

[0046] When multiple nuts in the placement slot 12 need to be moved upward, the motor 721 drives the one-way lead screw 724 to rotate. Under the drive of the one-way lead screw 724, the connecting plate 722 moves upward along the moving slot 11. The connecting plate 722 drives the connecting ring 723 to move upward along the guide rod 74. The connecting ring 723 pushes multiple nuts in the placement slot 12 upward, pushing the top tapped nut out of the placement slot 12. When the nut is pushed out to the preset position, the motor 721 stops working, and the electric telescopic rod 732 of the clamping mechanism 73 extends and elongates to limit and fix the remaining nuts in the placement slot 12, ensuring that the remaining nuts are in a stable position. The new top nut in the placement slot 12 is simultaneously oiled, tightened, tapped, pushed out, and unloaded, realizing continuous automatic processing of multiple nuts until all nuts in the placement slot 12 are processed.

[0047] The specific steps for automatically tapping nuts are as follows: S1: Multiple nuts with pre-drilled holes are stacked from top to bottom into the placement slot 12 of the placement cylinder. The electric telescopic rod 732 of the clamping mechanism 73 pushes the clamping plate 733 to move, and performs initial clamping and positioning of the stacked nuts.

[0048] S2: The first cylinder 42 of the drive mechanism 4 drives the tapping mechanism 5 to move downward. When the tapping mechanism 5 approaches the top nut, the tapping oil dripping component drips tapping oil into the tap and nut machining position.

[0049] S3: The tapping mechanism 5 continues to move downwards, and the toothed plate of the active component 6 drives the gear 711 and the double-acting screw 713 of the driven component 71 to rotate, driving the clamping plate 752 and the pressure plate 751 of the fastening component 75 to close towards the center, further clamping and fixing the topmost nut. S4: The tapping machine 52 of the tapping mechanism 5 drives the tap to rotate, and the first cylinder 42 continues to push the tapping mechanism 5 downward. The tap performs tapping on the pre-made hole of the nut, and the tapping oil continuously lubricates and cools the hole. S5: After tapping is completed, the tapping machine 52 stops working, the first cylinder 42 drives the tapping mechanism 5 to move upward and reset, the driving component 6 drives the driven component 71 to move in the opposite direction, the fastening component 75 loosens the fixing of the nut, and the tapping oil dripping stops. S6: The motor 721 of the adjusting mechanism 72 drives the one-way lead screw 724 to rotate, which drives the connecting ring 723 to move upward, pushing the tapped nut out of the placement groove 12. The second cylinder 84 of the feeding mechanism 8 pushes the second push plate 88, pushing the nut into the collection assembly 9.

[0050] S7: The collection component 9 classifies and collects nuts, debris, and tapping oil through the partition 93, filter frame 92, and liquid collection frame 91. The tapping oil in the liquid collection frame 91 can be discharged and recycled through the liquid outlet 20. The remaining nuts continue to be positioned and the tapping process of the next nut is carried out in a cycle.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is 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. An automatic nut tapping machine, characterized in that, include; The base (1) has a square groove in the middle of the top, a top plate (3) is provided above the base (1), a driving mechanism (4) is provided on the top plate (3), and a tapping mechanism (5) is provided at the bottom of the driving mechanism (4). The fixing component (7) includes a placement cylinder, a driven component (71), an adjusting mechanism (72), a clamping mechanism (73), and a fastening component (75). The placement cylinder is positioned directly above the square groove. A placement groove (12) is provided at the middle of the top of the placement cylinder. The clamping mechanism (73) is located on both sides of the placement groove (12) to clamp the nut located inside the placement groove (12). One end of the adjusting mechanism (72) is located inside the placement groove (12) to drive the nut to move upward. The driven component (71) and the fastening component (75) cooperate to fix the top nut. Collection component (9), located inside a square groove, is used to classify and collect nuts, debris, and tapping fluid; The feeding mechanism (8) is located on one side of the fastening assembly (75) and is used to push the tapped nut to feed.

2. The automatic nut tapping machine according to claim 1, characterized in that, The base (1) has a side plate (2) fixedly installed at one end of its top. The top of the side plate (2) is fixedly connected to one end of the top plate (3). The drive mechanism (4) includes a top frame (41) and a first cylinder (42). The top frame (41) is fixedly installed at the middle position of the top of the top plate (3). One end of the first cylinder (42) is fixedly installed at the top inside the top of the top frame (41). The other end of the first cylinder (42) passes through the top plate (3).

3. The automatic nut tapping machine according to claim 1, characterized in that, The tapping mechanism (5) includes a connecting frame (51), a tapping machine (52), and a connecting block (53). The top of the connecting frame (51) is fixedly connected to the bottom of the first cylinder (42), and the bottom of the connecting frame (51) is fixedly connected to the top of the connecting block (53). The tapping machine (52) is embedded in the middle of the connecting block (53). The tapping cutter at the bottom of the tapping machine (52) penetrates the connecting block (53). An active component (6) is provided on one side of the bottom of the connecting block (53). The active component (6) includes a toothed plate.

4. The automatic nut tapping machine according to claim 1, characterized in that, A limiting plate (21) is fixedly installed at the rear top of the base (1). A connecting column (22) is fixedly installed on the front wall of the limiting plate (21). One end of the connecting column (22) is fixedly connected to the rear side wall of the placement cylinder. Several drainage grooves (16) are provided on the bottom wall of the placement groove (12) inside the placement cylinder. The adjustment mechanism (72) includes a motor (721). The motor (721) is fixedly installed on the front wall of the placement cylinder. A one-way screw (724) is fixedly installed at the output end of the motor (721). A top block (725) is provided on the top of the one-way screw (724). One end of the top block (725) is fixedly installed on the upper end of the front wall of the placement cylinder. The top of the one-way screw (724) is rotatably mounted on the bottom wall of the top block (725). The surface of the one-way screw (724) is threaded with a connecting plate (722). The front wall of the placement cylinder is provided with a moving groove (11). The rear end of the connecting plate (722) passes through the moving groove (11) and is located inside the placement groove (12). One end of the connecting plate (722) located inside the placement groove (12) is fixedly installed with a connecting ring (723). The inner ring of the connecting ring (723) is provided with a guide rod (74). The bottom end of the guide rod (74) is fixedly installed on the bottom wall of the placement groove (12). The diameter of the guide rod (74) is smaller than the inner ring diameter of the connecting ring (723).

5. The automatic nut tapping machine according to claim 1, characterized in that, The clamping mechanism (73) includes a connecting frame (731), an electric telescopic rod (732), and a clamping plate (733). The placement groove (12) has symmetrical clamping grooves on both sides. The connecting frame (731) is fixedly installed on both sides of the placement cylinder. One end of the electric telescopic rod (732) is fixedly installed on the inner side wall of the connecting frame (731). The other end of the electric telescopic rod (732) passes through the placement cylinder and is located inside the clamping groove. One end of the electric telescopic rod (732) is fixedly connected to one side wall of the clamping plate (733). The other side wall of the clamping plate (733) is provided with a rubber layer.

6. The automatic nut tapping machine according to claim 1, characterized in that, The driven component (71) includes a gear (711), a fixed block (712), a bidirectional lead screw (713), and a moving block (714). The fixed block (712) has two symmetrical fixed installations on the upper end of the rear side wall of the placement cylinder. The two ends of the bidirectional lead screw (713) are rotatably installed on the end of the fixed block (712) close to each other. One end of the gear (711) is rotatably installed on one end of one of the fixed blocks (712). The other end of the rotating shaft passes through the fixed block (712) and is fixedly connected to one end of the bidirectional lead screw (713). The moving block (714) is symmetrically threaded onto the surface of the bidirectional lead screw (713). Adjustment grooves (13) are respectively opened on both sides of the upper end of the placement groove (12). The rear end of the adjustment groove (13) passes through the placement cylinder and has a through groove (14). The front ends of the two moving blocks (714) are located in the through groove (14).

7. The automatic nut tapping machine according to claim 1, characterized in that, The fastening assembly (75) includes two pressure caps (751), a clamping plate (752), a limiting block (753), and a square block (754). The two limiting blocks (753) are located inside the adjustment groove (13). The rear end of the limiting block (753) is fixedly connected to the front end of the moving block (714). A connecting groove (15) is provided through the upper end of the adjustment groove (13). The top of the limiting block (753) is fixedly connected to the bottom end of the square block (754). The square block (754) is located inside the connecting groove (15). The clamping plate (752) is located at the top of the placement cylinder. The top of the square block (754) is fixedly connected to the bottom wall of the clamping plate (752). The top of the clamping plate (752) is fixedly connected to the bottom wall of the pressure cap (751).

8. The automatic nut tapping machine according to claim 1, characterized in that, The feeding mechanism (8) includes a support plate (81), a support rod (82), a stop plate (83), a second cylinder (84), a placement pad (85), a first push plate (86), a spring (87), a second push plate (88), and a silicone pad (89). The support plate (81) is fixedly installed on the side wall of the side plate (2). The support rod (82) is located at the bottom end of the support plate (81). One end of the support rod (82) is fixedly connected to the bottom wall of the support plate (81), and the other end of the support rod (82) is fixedly connected to the side wall of the side plate (2). The bottom end of the stop plate (83) is fixed. The second cylinder (84) is fixedly installed at the rear end of the support plate (83) on one side wall of the abutment plate (83). The other end of the second cylinder (84) is fixedly connected to the first push plate (86). A spring (87) is provided at the end of the first push plate (86) away from the second cylinder (84). A second push plate (88) is provided at the other end of the spring (87). The two ends of the spring (87) are fixedly connected to the first push plate (86) and the second push plate (88) respectively. The silicone pad (89) is provided on the side wall of the second push plate (88) away from the spring (87).

9. An automatic nut tapping machine according to claim 1, characterized in that, The collection component (9) includes a liquid collection frame (91), a filter frame (92), a partition (93), a block (94), a placement plate (95), a first handle (96), and a second handle (97). The liquid collection frame (91) is placed inside a square groove. A pull groove (10) is provided through one side wall of the placement groove (12). A rotating plate (19) is rotatably connected inside the pull groove (10). A pull block (18) is fixedly installed on the surface of the rotating plate (19). The filter frame (92) is placed inside the upper part of the liquid collection frame (91). The placement plate (95) is fixedly installed on the filter frame. (92) At the top of the front and rear ends, the filter frame (92) has two support blocks fixedly installed on the two side walls in the middle position inside. The partition (93) is placed on the top of the support block. The partition (93) has a hollow structure. The first handle (96) is symmetrically fixedly installed on the top of the placement plate (95). The second handle (97) is symmetrically fixedly installed on both ends of the top of the partition (93). The liquid collection frame (91) has a slot (17) on one side wall. The liquid collection frame (91) has an outlet groove (20) at the bottom of the slot (17) on one side wall. The outlet groove (20) is provided with a block (94).

10. An automatic tapping method for an automatic nut tapping machine as described in any one of claims 1-9, characterized in that, The specific steps for automatically tapping nuts are as follows: S1: Multiple nuts with pre-made light holes are stacked from top to bottom into the placement slot (12) of the placement tube. The electric telescopic rod (732) of the clamping mechanism (73) pushes the clamping plate (733) to move, and performs initial clamping and positioning of the stacked nuts. S2: The first cylinder (42) of the drive mechanism (4) drives the tapping mechanism (5) to move downward. When the tapping mechanism (5) approaches the top nut, the tapping oil dripping component drips tapping oil into the tap and nut machining position. S3: The tapping mechanism (5) continues to move down, and the toothed plate of the active component (6) drives the gear (711) and the double-acting screw (713) of the driven component (71) to rotate, driving the clamping plate (752) and the pressure plate (751) of the fastening component (75) to close towards the center, further clamping and fixing the top nut. S4: The tapping machine (52) of the tapping mechanism (5) drives the tap to rotate, and the first cylinder (42) continues to push the tapping mechanism (5) to move down. The tap performs tapping on the pre-made hole of the nut, and the tapping oil continues to lubricate and cool. S5: After tapping is completed, the tapping machine (52) stops working, the first cylinder (42) drives the tapping mechanism (5) to move up and reset, the active component (6) drives the driven component (71) to move in the opposite direction, the fastening component (75) loosens the fixing of the nut, and the tapping oil dripping stops. S6: The motor (721) of the adjusting mechanism (72) drives the one-way lead screw (724) to rotate, which drives the connecting ring (723) to move upward, pushing the tapped nut out of the placement groove (12). The second cylinder (84) of the feeding mechanism (8) pushes the second push plate (88) to push the nut into the collection assembly (9). S7: The collection component (9) classifies and collects nuts, debris and tapping oil through the partition (93), filter frame (92) and liquid collection frame (91). The tapping oil in the liquid collection frame (91) can be discharged and recycled through the liquid outlet (20). The remaining nuts continue to be positioned and the tapping process of the next nut is carried out in a cycle.

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