A ring cutting tool and a machining method for machining hardware products

Abstract

The present application relates to the technical field of hardware processing, and particularly relates to a ring cutting tool for hardware product processing and a processing method, which comprises a mounting seat, a supporting table is mounted on the mounting seat through a lifting adjusting mechanism, a steel ruler for positioning hardware workpiece cutting and a sliding positioning device are arranged on the supporting table, and a cooling device and a container are further mounted on the lifting adjusting mechanism. The present application can effectively reduce heat accumulation in the cutting area by temporarily limiting and pausing the ring cutting tool, and after the pause, the accumulated compression energy is released, the cooling liquid is sprayed in the cutting area by the compression energy for cooling and chip removal, so that thermal expansion of the sliding positioning device in the cutting process of the hardware workpiece to be processed is avoided due to temperature rise, the size of the sliding positioning device is changed, and the overall positioning accuracy of the hardware workpiece to be processed is affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hardware processing, in particular to a ring cutting tool and processing method for hardware product processing. BACKGROUND

[0002] In the traditional hardware product processing process, it is usually necessary to position and draw lines on the gauge with a steel ruler, and then to perform ring cutting on the ring cutting machine according to the drawn lines. This traditional processing method is cumbersome, and the product needs to be transferred between different devices, increasing the operation links such as carrying and being inconvenient to operate. Moreover, the positioning accuracy is greatly affected by human factors, such as the angle of the steel ruler, the angle of the drawing pen, and whether the product is placed in the center or not, etc., making it difficult to achieve the drawing requirements in terms of processing accuracy. This results in low production efficiency, and due to the multiple processes, complex operation, and possible repeated adjustment of positioning and ring cutting, etc., the number of processed products per unit time is small. In the processing process, the cutting tool may generate heat due to friction during cutting, which may cause the temperature of the workpiece to rise. The heat is transmitted to the positioning components through the workpiece, further causing thermal expansion of the materials of the positioning components, resulting in a change in the size of the positioning block, thereby affecting the overall positioning accuracy of the tool. Especially after a long time of operation, the positioning error will increase significantly, which may cause the size of the finished product to exceed the tolerance range, and may affect the accuracy of the product.

[0003] According to the search, Chinese Patent No. CN202310550812.2 discloses a ring cutting equipment for hardware production and processing, which comprises a base, a ring body is fixedly connected to the top surface of the base, a ring groove is formed in the inner surface of the ring body, and a through groove is formed in the side wall of the base. A sliding plate is slidably connected in the through groove, and a first guide rod and a bidirectional screw rod are rotatably connected to the two sides of the sliding plate.

[0004] In the above-mentioned scheme, the top rod rises and falls with the change in the shape of the hardware, so that the outer surface of the hardware can be clamped by the clamping force. This avoids local stress on the hardware, allows the clamping force to be evenly distributed, fully fixes the hardware, avoids damage to the hardware, and allows the cutting tool to automatically extend during the ring cutting process without the need for additional transmission instructions. This ensures the quality of the ring cutting of the hardware, avoids the first cutting tool from jumping due to rotation, ensures the stability of the first cutting tool, and improves the safety of the ring cutting equipment. However, in the actual operation process, heat is generated between the ring cutting tool and the hardware workpiece due to friction during cutting of the hardware. The heat is transmitted to the clamping component / positioning component, which may cause thermal expansion of the material. In the long-term use, the positioning accuracy may be reduced.

[0005] Therefore, a ring cutting tool and processing method for hardware product processing are proposed to solve the above-mentioned problems. SUMMARY

[0006] Technical problems solved

[0007] In view of the above-mentioned defects of the prior art, the present application provides a ring cutting tool and processing method for hardware product processing, which can solve the problems of complicated process, low positioning accuracy, low production efficiency and high labor cost in the prior art.

[0008] Technical scheme

[0009] To achieve the above object, the present application is implemented by the following technical scheme:

[0010] The present application provides a ring cutting tool for hardware product processing, comprising a mounting seat, a supporting table is mounted on the mounting seat through a lifting adjusting mechanism, a steel ruler and a sliding positioning device for positioning hardware workpiece cutting are arranged on the supporting table, a cooling device and a container are further mounted on the lifting adjusting mechanism;

[0011] The cooling device comprises a vertical pipe connected to the container, a driving piston block is slidably mounted in the vertical pipe, the driving piston block is connected to the ring cutting tool through a mounting rod, and the cutting kinetic energy of the ring cutting tool is converted into compression energy in the air cavity during cutting; a spraying mechanism is further connected to the vertical pipe, a limiting mechanism is mounted on the branch pipe for controlling the release of compression energy, and the spraying mechanism sprays the cooling liquid in the liquid cavity to the cutting area when the compression energy is released.

[0012] Further, the spraying mechanism comprises a branch pipe connected to the surface of the vertical pipe, the branch pipe and the air cavity arranged in the vertical pipe are in communication, a passive piston block is inserted into the inside of the branch pipe, a liquid cavity is arranged above the passive piston block in the inside of the branch pipe, a water pipe is connected to the surface of the branch pipe, one end of the water pipe is in communication with the container, the other end of the water pipe is in communication with the liquid cavity, a one-way valve is arranged at the connection between the liquid cavity and the water pipe, and a spray head is connected to the branch pipe through a rotary joint.

[0013] Further, the limiting mechanism comprises an electromagnet connected to the surface of the branch pipe, the surface of the branch pipe is provided with an opening in communication with a sleeve, a bolt is connected to the inside of the sleeve through a first spring, the surface of the passive piston block is provided with a limiting hole matched with the bolt, and the surface of the sleeve is further provided with the electromagnet.

[0014] Further, the surface of the branch pipe is further connected to a supporting rod, a clamping block is slidably mounted on the surface of the supporting rod through a second spring, the clamping block is perpendicular to the surface of the mounting rod, the surface of the mounting rod is provided with a limiting clamping groove towards the side of the clamping block, the lower end of the limiting clamping groove is provided in a slope shape, and the upper end is provided with a vertical included angle.

[0015] Further, a pressure sensor and a delay controller are mounted on the upper surface of the clamping block.

[0016] Further, the upper surface of the passive piston block is connected with a push rod, the upper end of the push rod penetrates to the outside of the branch pipe, and the lower end surface of the clamping block is provided with an inclined surface.

[0017] Further, a plurality of spraying mechanisms are installed on the vertical pipe and are staggered at different height positions on the surface of the vertical pipe, and a plurality of limiting clamping grooves corresponding to the spraying mechanisms are further arranged on the mounting rod.

[0018] Further, a water pipe is connected to the surface of the branch pipe, one end of the water pipe is connected to the container, the other end of the water pipe is connected to the liquid cavity, a one-way valve is arranged at the connection position between the liquid cavity and the water pipe, and a spray head is connected to the branch pipe through a rotary joint.

[0019] The scheme also provides a machining method of the ring cutting tool for hardware product machining.

[0020] Step one: place the hardware workpiece on the support table, and use the sliding positioning device to position the hardware workpiece;

[0021] Step two: use the lifting adjusting mechanism to adjust the height of the support table;

[0022] Step three: determine the cutting position by using a steel ruler, start the ring cutting machine, and perform ring cutting machining on the hardware product;

[0023] Step four: convert the kinetic energy of the ring cutting tool into the compression energy inside the air cavity, and trigger the release of the compression energy after the ring cutting tool is temporarily stopped by limiting, and use the compression energy to spray the cooling liquid on the cutting area for cooling;

[0024] Step five: repeat step four until the cutting is completed.

[0025] Beneficial effects

[0026] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0027] In the application, the mounting rod is installed on the ring cutting tool, the kinetic energy of the ring cutting tool is converted into the compression energy in the air cavity during the cutting process of the ring cutting tool, and then the pressing process of the ring cutting tool is smoothed, so that the sudden feeling caused by the sudden applied pressure is prevented; this helps to maintain the stability of the cutting process, reduces the instantaneous change of the cutting force, and improves the machining accuracy of the hardware workpiece;

[0028] In addition, during the cutting process, the ring cutting tool is temporarily stopped by limiting, which can effectively reduce the heat accumulation in the cutting area and reduce the risk of thermal deformation caused by the influence of the thermal expansion effect of the hardware workpiece and the sliding positioning device on the heat, so as to maintain the stability and precision of the cutting;

[0029] And after the pause, the accumulated compression energy is released, and the cooling liquid is sprayed in the cutting area to cool and remove the chips, so as to avoid the thermal expansion of the sliding positioning device during the cutting process of the hardware workpiece to be machined, which causes the size change of the sliding positioning device, thereby affecting the overall positioning accuracy of the hardware workpiece to be machined.

[0030] Finally, in the present scheme, the cutting process of the hardware workpiece is simplified by the setting of the support table and the steel ruler, the traditional line drawing process is cancelled, and the hardware workpiece is directly machined on the ring cutting machine using the ring cutting tool, thereby reducing the operation process; in addition, the hardware workpiece is processed by the ninety-degree angle of the support table and the sliding positioning device, which can reduce the error caused by human operation and improve the machining precision. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Fig. 1 It is a ring cutting tool structure installation schematic diagram in the embodiment of the present application;

[0033] Fig. 2 It is a ring cutting tool structure front view schematic diagram in the embodiment of the present application;

[0034] Fig. 3 It is a cooling mechanism structure installation schematic diagram in the embodiment of the present application;

[0035] Fig. 4 It is a cooling mechanism structure composition schematic diagram in the embodiment of the present application;

[0036] Fig. 5 It is a cooling mechanism structure cross-sectional schematic diagram in the embodiment of the present application;

[0037] Fig. 6 It is a cooling mechanism structure inclined cross-sectional schematic diagram in the embodiment of the present application.

[0038] The numbers in the figures represent respectively: 1, ring cutting device; 2, mounting seat; 3, lifting adjusting mechanism; 4, supporting table; 5, steel ruler; 6, sliding positioning device; 7, cooling device; 701, vertical pipe; 702, air cavity; 703, active piston block; 704, mounting rod; 705, branch pipe; 706, passive piston block; 707, liquid cavity; 708, limiting hole; 709, sleeve; 710, first spring; 711, bolt; 712, supporting rod; 713, clamping block; 714, second spring; 715, limiting clamping groove; 716, electromagnet; 717, push rod; 718, inclined surface; 719, rotary joint; 720, spray head; 721, water pipe; 8, container. DETAILED DESCRIPTION

[0039] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of description, only the parts related to the application are shown in the drawings rather than all the parts.

[0040] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0041] In the application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] The application will be further described in connection with the following examples.

[0044] Example one:

[0045] Please refer to the attached Figs. 1-6 The application provides a ring cutting tool for hardware product processing, which comprises a mounting seat 2 mounted on a ring cutting device 1, which provides a firm integrated basis for the installation of the ring cutting tool on the ring cutting device. A supporting table 4 is mounted on the mounting seat 2 for supporting hardware product processing. The mounting seat 2 and the ring cutting device 1 are vertically distributed at a ninety-degree angle, and a sliding positioning device 6 is slidably mounted on the side of the surface of the mounting seat 2 away from the ring cutting device 1.

[0046] In use, the hardware workpiece to be processed is placed on the surface of the mounting seat 2, and the sliding positioning device 6 and the ninety-degree angle are used to position the hardware workpiece to be processed.

[0047] Meanwhile, the surface of the mounting seat 2 is provided with parallel steel rulers 5, which can be used to accurately position the hardware workpiece to be processed when the hardware workpiece to be processed is positioned on the surface of the mounting seat 2, thereby ensuring the processing accuracy of the hardware workpiece to be processed during cutting.

[0048] The supporting table 4 is mounted on the mounting seat 2 through a lifting adjusting mechanism 3, which further allows the relative height of the supporting table 4 to be adjusted through the lifting adjusting mechanism 3 before cutting the hardware workpiece to be processed, so as to be suitable for hardware workpieces of different sizes and shapes.

[0049] The difference is that the mounting seat 2 is also provided with a cooling device 7 and a container 8, the cooling device 7 is used to draw out the cooling liquid in the container 8 and spray it on the cutting position of the ring cutting tool, so as to cool and dust the cutting position, thereby avoiding the thermal expansion of the sliding positioning device 6 due to the temperature rise during the cutting process of the hardware workpiece to be processed, which causes the size of the sliding positioning device 6 to change, thereby affecting the overall positioning accuracy of the hardware workpiece to be processed.

[0050] Specifically, the cooling device 7 comprises a vertical pipe 701 mounted on the container 8, which is arranged in a vertical manner and parallel to the cutting direction of the ring cutting tool. A driving piston block 703 is slidably mounted in the vertical pipe 701, and a mounting rod 704 is connected to the top of the driving piston block 703. The upper end of the mounting rod 704 penetrates to the outside of the vertical pipe 701 and is connected to the ring cutting tool.

[0051] When the metal workpiece is positioned on the support table 4 and ready to be cut, the ring cutter will slide down under the action of a driving device, such as a hydraulic device, and then contact the surface of the metal workpiece to be processed for cutting. During the downward sliding of the ring cutter, the mounting rod 704 will be pushed downward synchronously, and then the driving piston block 703 will slide downward in the vertical pipe 701. The driving piston block 703 seals the inside of the vertical pipe 701, so that the inside of the vertical pipe 701 below the driving piston block 703 forms a gas cavity 702 for storing gas.

[0052] When the driving piston block 703 slides downward in the vertical pipe 701, the gas in the gas cavity 702 will be compressed, and then the kinetic energy of the ring cutter will be converted into the internal energy of the gas. By absorbing and converting the kinetic energy, the downward process of the ring cutter can be smoothed, and the sudden feeling caused by the sudden application of pressure can be prevented; this helps to maintain the stability of the cutting process, reduces the instantaneous change of cutting force, and improves the machining accuracy of the metal workpiece.

[0053] In addition, the cutting stress between the ring cutter and the metal workpiece is reduced, thereby reducing the wear rate of the ring cutter and prolonging the service life of the ring cutter.

[0054] At the same time, the slower cutting speed after buffering will cause the temperature in the cutting area to rise slowly, which can help to reduce the influence of thermal expansion on cutting accuracy and maintain the dimensional accuracy during cutting.

[0055] It should be noted that during the cutting process, there is friction between the rake face and the flank face of the ring cutter and the surface of the metal workpiece, and a large amount of heat will be generated during the cutting process due to friction and plastic deformation. The temperature in the cutting area will rise significantly.

[0056] Because the contact between the metal workpiece and the sliding positioning device 6 is very close, part of the temperature will be quickly transferred to the sliding positioning device 6, causing thermal expansion of the sliding positioning device 6; the thermal expansion of the sliding positioning device 6 will directly affect the repeatability and accuracy of the machining, especially during continuous cutting and long-time machining, the change in size may cause step-by-step machining errors, so that the size of the final product exceeds the technical requirements. The cooling device 7 is provided with a plurality of spraying mechanisms, and the cooling liquid is sprayed in the cutting area in several times.

[0057] The spraying mechanism includes a branch pipe 705 connected to the surface of the vertical pipe 701, the gas cavity 702 and the branch pipe 705 are connected in communication, the branch pipe 705 is arranged in an L shape, and the vertical section of the branch pipe 705 is parallel to the vertical pipe 701. The inside of the branch pipe 705 is provided with a passive piston block 706, and the passive piston block 706 seals the inside of the branch pipe 705, so that the branch pipe 705 and the gas cavity 702 are connected in communication and sealed.

[0058] When the active piston block 703 compresses the gas in the gas cavity 702, it will also compress the gas in the branch pipe 705, and the gas pressure in the gas cavity 702 will have the force to push the passive piston block 706 to slide upward. The branch pipe 705 is connected with a limiting mechanism, which always keeps the passive piston block 706 in a fixed position in the branch pipe 705 before triggering, so that the gas pressure in the gas cavity 702 cannot push the passive piston block 706 to slide upward, and further, when the active piston block 703 slides downward and squeezes the gas in the gas cavity 702, it will convert the kinetic energy of the ring cutter into compression energy inside the gas cavity 702.

[0059] When the limiting mechanism receives a trigger signal, it will release the fixation of the passive piston block 706 in the branch pipe 705, and then the passive piston block 706 will slide upward in the branch pipe 705 under the action of the compression energy in the gas cavity 702.

[0060] The inside of the branch pipe 705 above the passive piston block 706 is provided with a sealed liquid cavity 707, and the surface of the branch pipe 705 is also connected with a water pipe 721, one end of the water pipe 721 is connected with the container 8, and the other end of the water pipe 721 is connected with the liquid cavity 707, and a one-way valve is arranged at the connection between the liquid cavity 707 and the water pipe 721 to control the cooling liquid in the liquid cavity 707 from being discharged from the water pipe 721 to the container 8. When the passive piston block 706 slides upward in the branch pipe 705, it will squeeze the cooling liquid in the liquid cavity 707.

[0061] The branch pipe 705 is connected with a spray head 720 through a rotary joint 719, and the spray head 720 faces the cutting area of the ring cutter on the hardware workpiece.

[0062] The spray head 720 is also provided with a one-way valve, so that the cooling liquid in the liquid cavity 707 can only be sprayed out of the spray head 720.

[0063] When the cooling liquid in the liquid cavity 707 is sprayed out of the spray head 720 under the action of the compression energy, it will be sprayed on the cutting area, and then the ring cutter and the surface of the hardware workpiece in the cutting area will be cooled, reducing the influence of the heat generated by cutting on the sliding positioning device 6, so as to maintain the accuracy of the ring cutting tool for a long time.

[0064] In addition, the sprayed cooling liquid can ensure that the cutting chips in the cutting area are removed in time, avoiding interference with the machining process, thereby improving the machining accuracy and production efficiency.

[0065] More specifically, the limiting mechanism includes a sleeve 709 connected to the surface of the branch pipe 705, and the surface of the branch pipe 705 is provided with an opening and is in communication with the inside of the sleeve 709. The inside of the sleeve 709 is connected with a plug 711 through a first spring 710, and the plug 711 is inserted into the opening on the surface of the branch pipe 705. When the plug 711 is not affected by external force, the plug 711 is pulled to one side of the branch pipe 705 under the elastic force of the first spring 710, and further makes one end of the plug 711 penetrate into the inside of the branch pipe 705. The surface of the passive piston block 706 is provided with a limiting hole 708 matched with the plug 711, and when the limiting mechanism limits and fixes the passive piston block 706, the plug 711 is just inserted into the limiting hole 708 on the surface of the passive piston block 706, so that the compression energy in the air cavity 702 cannot push the passive piston block 706 to slide upward in the branch pipe 705.

[0066] The surface of the sleeve 709 is also provided with an electromagnet 716, and when the limiting mechanism receives the release signal, the electromagnet 716 is powered to generate a magnetic force, and the plug 711 made of metal material is attracted to slide to one side of the electromagnet 716, so that the plug 711 overcomes the elastic force of the first spring 710, slides out of the limiting hole 708, penetrates into the sleeve 709 through the opening on the surface of the branch pipe 705, and makes the passive piston block 706 be pressed by the compression energy in the air cavity 702 to squeeze the cooling liquid in the liquid cavity 707, so as to realize the spraying of the cooling liquid.

[0067] The difference is that the surface of the branch pipe 705 is also connected with a supporting rod 712, and the surface of the supporting rod 712 is slidably provided with a clamping block 713 through a second spring 714, and the clamping block 713 is perpendicular to the surface of the mounting rod 704.

[0068] The surface of the mounting rod 704 is provided with a limiting clamping groove 715, and the limiting clamping groove 715 is towards the clamping block 713, and the lower end of the limiting clamping groove 715 is provided in a slope shape, and the upper end is provided with a vertical angle. In the process of sliding down the branch pipe 705, the clamping block 713 always abuts against the surface of the mounting rod 704, until the mounting rod 704 slides to align the limiting clamping groove 715 and the clamping block 713; when the clamping block 713 aligns with the limiting clamping groove 715, firstly under the elastic force of the second spring 714, it is inserted into the inside of the limiting clamping groove 715, and abuts against the slope of the limiting clamping groove 715 and gradually slides inward, and with the sliding down of the mounting rod 704, it is inserted into the vertical angle of the limiting clamping groove 715, and further limits and blocks the mounting rod 704.

[0069] Since the mounting rod 704 is installed on the ring cutting tool, the limiting and blocking of the ring cutting tool is realized, and the ring cutting tool is temporarily stopped.

[0070] Further effectively reduce the heat accumulation in the cutting zone, reduce the thermal expansion effect of the heat on the hardware workpiece and the sliding positioning device 6 caused by the risk of thermal deformation, thereby maintaining the stability and precision of cutting.

[0071] At the same time, by installing a pressure sensor and a delay controller on the upper surface of the clamping block 713, when the clamping block 713 is inserted into the limiting clamping groove 715, the pressure sensor on the upper surface of the clamping block 713 will be in contact with the vertical angle of the limiting clamping groove 715, thereby triggering the release signal of the limiting mechanism, and the clamping block 713 will block the sliding of the mounting rod 704 for a period of time, and then trigger the cooling operation of spraying cooling liquid.

[0072] Further, during the cutting pause time, the stress inside the hardware workpiece can be released to some extent, reducing the risk of micro-crack formation caused by direct spraying of cooling liquid, thereby improving the processing quality.

[0073] The upper surface of the passive piston block 706 is connected with a push rod 717, and the upper end of the push rod 717 penetrates to the outside of the branch pipe 705. The lower end surface of the clamping block 713 is provided with a slope 718, and when the clamping block 713 is inserted into the limiting clamping groove 715, the upper end of the push rod 717 is just aligned with the slope 718.

[0074] When the limiting mechanism releases the limitation of the passive piston block 706, the passive piston block 706 slides upward under the compression of the gas cavity 702, and pushes the liquid cavity 707 to slide upward; further, the push rod 717 is in contact with the surface of the slope 718, and pushes the clamping block 713 to extrude the second spring 714 on the supporting rod 712, overcoming the elastic force of the second spring 714, and sliding away from the mounting rod 704 side, realizing the sliding of the clamping block 713 out of the limiting clamping groove 715, to release the limitation of the clamping block 713 to the mounting rod 704; so that the ring cutter can continue to cut under the pressure of the hydraulic equipment.

[0075] It is worth noting that a plurality of spraying mechanisms are installed on the vertical pipe 701, and the plurality of spraying mechanisms are staggered at different height positions on the surface of the vertical pipe 701, and each group of spraying mechanisms is installed with the same structure component; the mounting rod 704 is also provided with a plurality of limiting clamping grooves 715 corresponding to the spraying mechanisms.

[0076] Further, the mounting rod 704 can form multiple pause limiting and spraying cooling liquid cooling operations during the sliding process, thereby reducing the problems caused by cutting in stages during the cutting process of the hardware workpiece, thereby avoiding overheating and the thermal expansion effect of heat on the sliding positioning device 6, ensuring long-term processing precision and quality.

[0077] The machining efficiency and safety of hardware workpieces are improved, and an effective solution is provided for high-precision and complex material machining, which can better meet the increasingly high requirements of modern manufacturing on cutting machining.

[0078] The spray head 720 can rotate through the rotary joint 719 to adjust the direction of the spray head 720 spraying the cooling liquid to adapt to hardware workpieces of different shapes, thereby realizing accurate spraying and cooling of the cutting area by the cooling liquid.

[0079] Meanwhile, the spray heads 720 installed on each group of branch pipes 705 are different in height, and in the cutting process of the hardware workpiece, as the cutting depth changes, the shape and area of the cutting area also change, and the spray heads 720 of different heights can ensure that the cooling liquid can fully cover all the cutting areas, keep the temperature of the cutting area uniform, and avoid thermal stress and deformation caused by uneven distribution of the cooling liquid.

[0080] And when the active piston block 703 is sliding downward to press the gas in the gas cavity 702, the gas pressure in the gas cavity 702 will decrease after the compression energy in the upper branch pipe 705 is released; at this time, the active piston block 703 continues to slide downward, and the active piston block 703 has sufficient length to seal the connection between the upper branch pipe 705 and the gas cavity 702, so that the active piston block 703 can again compress the gas in the gas cavity 702 during the continuous sliding process, thereby accumulating the compression energy in the lower branch pipe 705, and realizing continuous cooling liquid spraying operation.

[0081] And after the cutting is completed, the hydraulic device drives the ring cutter to rise and reset, which will simultaneously connect the mounting rod 704 to drive the active piston block 703 to slide upward in the gas cavity 702, and a negative pressure will be generated during the upward sliding process, thereby causing the passive piston block 706 to slide downward to reset in the branch pipe 705; and during the resetting process of the branch pipe 705, the cooling liquid will be drawn from the container 8 into the liquid cavity 707 through the water pipe 721, thereby realizing the filling of the cooling liquid in the liquid cavity 707, and facilitating the spraying and cooling during the next cutting.

[0082] Meanwhile, as the height of the active piston block 703 rises, the passive piston block 706 will slide in the branch pipe 705 to the initial position, i.e., the position where the limiting hole 708 and the opening position on the surface of the branch pipe 705 are aligned, at which time the limiting mechanism is opened again, the electromagnet 716 is de-energized, loses the magnetic force, the latch 711 is reset under the elastic force of the first spring 710, and penetrates the opening on the surface of the branch pipe 705 to insert into the limiting hole 708, thereby limiting and fixing the passive piston block 706, and facilitating the accumulation of compression energy during the next operation.

[0083] In the scheme, through the setting of the support table 4 and the steel ruler 5, the cutting process of the hardware workpiece is simplified, the traditional line drawing process is cancelled, and the hardware workpiece is directly processed on the ring cutting machine using the ring cutting tool, thereby reducing the operation process; in addition, the hardware workpiece is positioned by the ninety-degree angle of the support table 4 and the sliding positioning device 6, which can reduce the error caused by manual operation, improve the machining precision, and further improve the production efficiency.

[0084] Embodiment two:

[0085] Please refer to the attached Figs. 1-6 On the basis of embodiment one, the scheme provides a ring cutting tool machining method for hardware product machining, comprising the following steps:

[0086] Step one: place the hardware workpiece on the support table 4, and ensure that the hardware workpiece is closely attached to the positioning surface of the sliding positioning device 6;

[0087] Step two: finely adjust the support table 4 by using the lifting adjusting mechanism 3, and ensure that the hardware product is accurately positioned;

[0088] Step three: determine the cutting position by using the steel ruler 5, start the ring cutting machine, and perform ring cutting machining on the hardware product; no manual intervention is required during the machining process, thereby improving the machining precision and efficiency;

[0089] Step four: convert the kinetic energy of the ring cutting tool into the compression energy inside the air cavity 702, and trigger the release of the compression energy after the ring cutting tool is temporarily stopped by limiting, and use the compression energy to spray the cooling liquid on the cutting area for cooling;

[0090] Step five: repeat step four until the cutting is completed.

[0091] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A circumferential cutting fixture for processing hardware products, comprising a mounting base, characterized in that, A support platform is mounted on the mounting base via a lifting and adjusting mechanism. The support platform is equipped with a steel ruler and a sliding positioning device for positioning the cutting of hardware workpieces. A cooling device and a container are also mounted on the lifting and adjusting mechanism. The cooling device includes a vertical pipe connected to the container, an active piston block slidably installed inside the vertical pipe, and the active piston block connected to the circumferential cutting tool via a mounting rod, converting the cutting kinetic energy of the circumferential cutting tool into compressive energy in the air chamber during cutting. A spraying mechanism is also connected to the vertical pipe, including a branch pipe connected to the surface of the vertical pipe. A limit mechanism is installed on the branch pipe to control the release of compressive energy. When the compressive energy is released, the spraying mechanism sprays coolant from the liquid chamber onto the cutting area. The branch pipe and the air chamber inside the vertical pipe are connected. A passive piston block is inserted inside the branch pipe, and a liquid chamber is located above the passive piston block inside the branch pipe. The limiting mechanism includes an electromagnet connected to the surface of the branch pipe. The surface of the branch pipe has an opening that connects to the sleeve. The inside of the sleeve is connected to a pin via a first spring. The surface of the passive piston block has a limiting hole that matches the pin. An electromagnet is also installed on the surface of the sleeve. A support rod is also connected to the surface of the branch pipe. A locking block is slidably installed on the surface of the support rod via a second spring. A pressure sensor and a delay controller are installed on the upper surface of the locking block. The locking block is perpendicular to the surface of the mounting rod. The surface of the mounting rod has a limiting groove facing the locking block. The lower end of the limiting groove is set as an inclined plane and the upper end has a vertical included angle. A push rod is connected to the upper surface of the passive piston block. The upper end of the push rod extends to the outside of the branch pipe. The lower end surface of the locking block has an inclined plane. Multiple spraying mechanisms are installed on the vertical pipe. The multiple spraying mechanisms are staggered and distributed at different height positions on the surface of the vertical pipe. The mounting rod also has multiple limiting grooves corresponding to the spraying mechanisms.

2. The circumferential cutting fixture for processing hardware products according to claim 1, characterized in that, A water pipe is connected to the surface of the branch pipe. One end of the water pipe is connected to the container, and the other end of the water pipe is connected to the liquid chamber. A one-way valve is provided at the connection between the liquid chamber and the water pipe. A nozzle is connected to the branch pipe through a rotary joint.

3. A processing method for a circumferential cutting fixture for processing hardware products according to any one of claims 1-2, characterized in that, Includes the following steps: Step 1: Place the hardware workpiece on the support platform and use the sliding positioning device to position the hardware workpiece. Step 2: Adjust the height of the support platform using the lifting and adjusting mechanism; Step 3: Determine the cutting position using a steel ruler, start the circumferential cutting machine, and perform circumferential cutting on the hardware product; Step four: The kinetic energy of the circumferential cutting tool is converted into the compressive energy inside the air chamber, and the release of the compressive energy is triggered after a delay when the circumferential cutting tool is stopped and limited. The compressive energy is used to spray coolant onto the cutting area for cooling. Step 5: Repeat step 4 until the cutting is complete.

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