Ring cutting tool for hardware product machining and machining method

Abstract

The invention relates to the technical field of hardware machining, in particular to an annular cutting tool for hardware product machining and a machining method.The annular cutting tool comprises a mounting base, a supporting table is mounted on the mounting base through a lifting adjusting mechanism, and a steel ruler for positioning hardware workpiece cutting and a sliding positioning device are arranged on the supporting table; a cooling device and a container are further installed on the lifting adjusting mechanism. The annular cutting tool is temporarily limited and paused, heat accumulation of a cutting area can be effectively reduced, accumulated compression energy is released after pause, cooling liquid is sprayed to the cutting area through the compression energy for cooling and chip removal, and the cutting efficiency is improved. The sliding positioning device is prevented from generating thermal expansion due to temperature rise in the cutting machining process of the to-be-machined hardware workpiece, so that the size change of the sliding positioning device is caused, and the overall positioning precision of the subsequent to-be-machined hardware workpiece is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of hardware processing, and particularly relates to a circumferential cutting tooling and a processing method for hardware product processing. Background Art

[0002] In the traditional hardware product processing process, it is usually necessary to use a steel ruler to position and draw lines on a checking fixture, and then perform circumferential cutting on a circumferential cutting machine according to the drawn lines. This traditional processing method has cumbersome procedures, requires transferring products between different devices, increases operation links such as handling, and is inconvenient to operate. Moreover, the positioning accuracy is greatly affected by human factors, such as the placement angle of the steel ruler, the angle of the marking pen, whether the product is placed in the center, etc., resulting in the processing accuracy being difficult to meet the requirements of the drawing. This causes low production efficiency. Due to multiple procedures, complex operations, and possible repeated adjustments in positioning and circumferential cutting, the number of products processed per unit time is small. And during the processing, during the cutting process of the cutting tool, the heat generated by friction may cause the temperature of the workpiece to rise, and the heat will be transferred to the positioning component through the workpiece, further causing thermal expansion of the material of the positioning component, resulting in dimensional changes of the positioning block, thereby affecting the overall positioning accuracy of the tooling; especially after a long time of operation, the positioning error will increase significantly, resulting in the finished product size exceeding the tolerance range, which may lead to an increase in the positioning error and affect the accuracy of the product.

[0003] After retrieval, Chinese Patent No. CN202310550812.2 discloses a circumferential cutting device for hardware part production and processing, including a base, a ring body is fixedly connected to the top surface of the base, a ring groove is opened on the inner surface of the ring body, and a through groove is penetrated and opened on the side wall of the base, a sliding plate is slidably sleeved in the through groove, and a first guide rod and a bidirectional screw are respectively rotatably connected to both sides of the sliding plate.

[0004] In the above solution, by making the ejector rod fluctuate with the shape change of the hardware part, the outer surface of the hardware part can be subjected to clamping force, avoiding local stress on the hardware part, enabling the clamping force to be evenly dispersed, not only can the hardware part be fully fixed, but also the damage of the hardware part can be avoided. And the cutting tool can extend automatically during the circumferential cutting process without additional transmission instructions, and can circumferentially cut the hardware part step by step, ensuring the circumferential cutting quality of the hardware part. At the same time, it can avoid the first cutting tool from jumping due to rotation, ensuring the stability of the first cutting tool and improving the safety of the circumferential cutting device. However, during the actual operation process, when cutting the hardware part, heat will be generated due to friction between the circumferential cutting tool and the hardware workpiece, and the heat is transferred to the clamping component / positioning component, which will cause the thermal expansion effect of the material. In the long-term use, it will lead to a decrease in the positioning accuracy.

[0005] Therefore, a circumferential cutting tooling and a processing method for hardware product processing are proposed to solve the above-mentioned problems. Summary of the Invention

[0006] Technical problems to be solved In view of the above-mentioned disadvantages of the prior art, the present invention provides a circumferential cutting tooling and processing method for hardware product processing, which can solve the problems of cumbersome processes, low positioning accuracy, low production efficiency and high labor costs existing in the prior art.

[0007] Technical solutions To achieve the above object, the present invention is realized through the following technical solutions: The present invention provides a circumferential cutting tooling for hardware product processing, including a mounting base. A support table is installed on the mounting base through a lifting adjustment mechanism. A steel ruler and a sliding positioning device for positioning the cutting of hardware workpieces are provided on the support table. A cooling device and a container are also installed on the lifting adjustment mechanism; The cooling device includes a vertical pipe connected to the container. A driving piston block is slidably installed in the vertical pipe. The driving piston block is connected to a circumferential cutting tool through a mounting rod, and converts the cutting kinetic energy of the circumferential cutting tool into compression energy in the air chamber during cutting; A spraying mechanism is also connected to the vertical pipe. A limiting mechanism is installed on the branch pipe to control the release of compression energy. The spraying mechanism sprays the coolant in the liquid chamber on the cutting area when the compression energy is released.

[0008] Further, the spraying mechanism includes a branch pipe connected to the surface of the vertical pipe. The branch pipe communicates with the air chamber provided in the vertical pipe. A driven piston block is inserted into the interior of the branch pipe. A liquid chamber is provided above the driven piston block in the interior of the branch pipe. A water pipe is connected to the surface of the branch pipe. One end of the water pipe communicates with the container, and the other end of the water pipe communicates with the interior of 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.

[0009] Further, the limiting mechanism includes an electromagnet connected to the surface of the branch pipe. An opening communicating with the sleeve is provided on the surface of the branch pipe. A plug is connected to the interior of the sleeve through a first spring. A limiting hole adapted to the plug is provided on the surface of the driven piston block. An electromagnet is also installed on the surface of the sleeve.

[0010] Further, a support rod is also connected to the surface of the branch pipe. A clamping block is slidably installed on the surface of the support rod through a second spring. The clamping block is perpendicular to the surface of the mounting rod. A limiting card slot facing one side of the clamping block is provided on the surface of the mounting rod. The lower end of the limiting card slot is in a slope shape and the upper end has a vertical included angle.

[0011] Further, a pressure sensor and a delay controller are installed on the upper surface of the clamping block.

[0012] Further, a push rod is connected to the upper surface of the passive piston block. The upper end of the push rod penetrates to the outside of the branch pipe, and an inclined surface is provided on the lower end surface of the clamping block.

[0013] Further, a plurality of spraying mechanisms are installed on the vertical pipe. The plurality of spraying mechanisms are staggered and distributed at different height positions on the surface of the vertical pipe, and a plurality of limiting card slots corresponding to the spraying mechanisms are further provided on the mounting rod.

[0014] Further, a water pipe is connected to the surface of the branch pipe. One end of the water pipe is communicated with the container, and the other end of the water pipe is communicated with the liquid cavity. A one-way valve is provided 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.

[0015] This solution also proposes a processing method for a circumferential cutting tooling for hardware product processing, including the following steps: Step 1: Place the hardware workpiece on the support table and position the hardware workpiece using the sliding positioning device; Step 2: Use the lifting adjustment mechanism to adjust the height of the support table; Step 3: Determine the cutting position through a steel ruler, start the circumferential cutting machine, and perform circumferential cutting on the hardware product; Step 4: Convert the kinetic energy of the circumferential cutting tool into the compressed energy inside the air cavity, and delay the release of the compressed energy after the circumferential cutting tool is limited and paused. Use the compressed energy to spray the coolant on the cutting area for cooling; Step 5: Repeat Step 4 until the cutting is completed.

[0016] Beneficial effects The technical solution provided by the present invention has the following beneficial effects compared with the prior art: In the present invention, by installing the mounting rod on the circumferential cutting tool, during the cutting process of the circumferential cutting tool, the kinetic energy of the circumferential cutting tool is converted into the compressed energy in the air cavity, thereby smoothing the downward pressing process of the circumferential cutting tool and preventing the sense of jerk caused by the suddenly applied pressure; this helps to maintain the stability of the cutting process, reduce the instantaneous change of the cutting force, and improve the processing accuracy of the hardware workpiece; In addition, during the cutting process, by briefly limiting and pausing the circumferential cutting tool, the heat accumulation in the cutting area can be effectively reduced, and the risk of thermal deformation caused by the thermal expansion effect of heat on the hardware workpiece and the sliding positioning device can be reduced, thereby maintaining the stability and accuracy of the cutting; And after the pause, the accumulated compressed energy is released, and the compressed energy is used to spray the coolant on the cutting area for cooling and chip removal, so as to prevent the sliding positioning device from thermally expanding due to the temperature rise during the cutting process of the hardware workpiece to be processed, resulting in dimensional changes of the sliding positioning device, thereby affecting the overall positioning accuracy of the subsequent hardware workpiece to be processed; Finally, in this solution, the cutting process of the hardware workpiece is simplified by setting the support platform and the steel ruler, the traditional drawing process is cancelled, and the workpiece is directly processed on the ring cutting machine by using the ring cutting tooling, reducing the operation process. In addition, by using the 90-degree angle of the support platform and the sliding positioning device for the hardware workpiece, the error caused by manual operation can be reduced, and the processing accuracy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0018] Figure 1 Schematic installation diagram of the ring cutting tooling structure in the embodiment of the present invention; Figure 2 Front view schematic diagram of the ring cutting tooling structure in the embodiment of the present invention; Figure 3 Schematic installation diagram of the cooling mechanism structure in the embodiment of the present invention; Figure 4 Schematic composition diagram of the cooling mechanism structure in the embodiment of the present invention; Figure 5 Schematic cross-sectional diagram of the cooling mechanism structure in the embodiment of the present invention; Figure 6 Schematic oblique cross-sectional diagram of the cooling mechanism structure in the embodiment of the present invention.

[0019] The reference numerals in the drawings respectively represent: 1, ring cutting equipment; 2, mounting seat; 3, lifting adjustment mechanism; 4, support platform; 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, plug pin; 712, support rod; 713, clamping block; 714, second spring; 715, limiting card slot; 716, electromagnet; 717, push rod; 718, inclined plane; 719, rotary joint; 720, nozzle; 721, water pipe; 8, container. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0021] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the upper surface of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "on the lower surface of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] The present invention will be further described below in conjunction with embodiments.

[0025] Embodiment 1: Please refer to the attached Figure 1-6 , this solution proposes a circumferential cutting tooling for the processing of hardware products, including a mounting base 2 installed on a circumferential cutting device 1, which provides a firm integrated basis for the installation of the circumferential cutting tooling on the circumferential cutting device. A support platform 4 is installed on the mounting base 2 for supporting the processing of hardware products. Among them, the mounting base 2 and the circumferential cutting device 1 are vertically distributed at a right angle, and a sliding positioning device 6 is slidably installed on the side of the surface of the mounting base 2 away from the circumferential cutting device 1.

[0026] During use, place the hardware workpiece to be processed on the surface of the mounting base 2, and position the hardware workpiece to be processed through the sliding positioning device 6 and a ninety-degree angle.

[0027] At the same time, parallel steel rulers 5 are provided on the surface of the mounting base 2. When the hardware workpiece to be processed is positioned on the surface of the mounting base 2, the steel rulers 5 can be used to accurately position the hardware workpiece to be processed, ensuring the processing accuracy when the hardware workpiece to be processed is cut.

[0028] The support table 4 is installed on the mounting base 2 through a lifting adjustment mechanism 3. Further, before the hardware workpiece to be processed is cut, the relative height of the support table 4 can be adjusted through the lifting adjustment mechanism 3 to be suitable for hardware workpieces of different sizes and shapes.

[0029] The difference is that a cooling device 7 and a container 8 are also installed on the mounting base 2. The cooling device 7 is used to extract the coolant in the container 8 and spray it on the cutting position of the circumferential cutting tool to cool and remove dust from the cutting position, so as to prevent the sliding positioning device 6 from thermally expanding due to temperature rise during the cutting process of the hardware workpiece to be processed, resulting in dimensional changes of the sliding positioning device 6, thereby affecting the overall positioning accuracy of the subsequent hardware workpiece to be processed.

[0030] Specifically, the cooling device 7 includes a vertical pipe 701 installed on the container 8. The vertical pipe 701 is set to be vertical and parallel to the cutting direction of the circumferential cutting tool. An active piston block 703 is slidably installed inside the vertical pipe 701. An installation rod 704 is connected above the active piston block 703. The upper end of the installation rod 704 penetrates to the outside of the vertical pipe 701 and is connected to the circumferential cutting tool.

[0031] When the hardware workpiece completes the positioning operation on the support table 4 and is ready to be cut, the circumferential cutting tool will slide downward under the action of a driving device, such as a hydraulic device, and then contact the surface of the hardware workpiece to be processed for cutting. During the downward sliding of the circumferential cutting tool, the installation rod 704 will be synchronously pushed downward, and then the active piston block 703 will be pushed to slide downward inside the vertical pipe 701. The active piston block 703 seals the inside of the vertical pipe 701, so that an air cavity 702 is formed below the active piston block 703 inside the vertical pipe 701 for storing gas.

[0032] When the active piston block 703 slides downward inside the vertical pipe 701, it will compress the gas in the air cavity 702, and then convert the kinetic energy of the circumferential cutting tool into the internal energy of the gas. By absorbing and converting the kinetic energy, the downward pressure process of the circumferential cutting tool can be smoothed, preventing the jerks caused by the suddenly applied pressure; this helps to maintain the stability of the cutting process, reduce the instantaneous change of the cutting force, and improve the processing accuracy of the hardware workpiece.

[0033] In addition, the cutting stress between the ring cutting tool and the hardware workpiece is reduced, thereby reducing the wear rate of the ring cutting tool and extending the service life of the ring cutting tool.

[0034] At the same time, the slower cutting speed after buffering will cause the temperature in the cutting area to rise more slowly, which can help reduce the impact of thermal expansion on the cutting accuracy and maintain the dimensional accuracy during the cutting process.

[0035] It should be noted that during the cutting process, there is friction between the rake face and the flank face of the ring cutting tool and the surface of the hardware workpiece, and a large amount of heat will be generated due to friction during the cutting process; due to friction and plastic deformation, the temperature in the cutting area will rise significantly.

[0036] Since the contact between the hardware workpiece and the sliding positioning device 6 is very tight, this 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 dimensions may cause step-by-step machining errors, making the dimensions of the final product exceed the technical requirements. A plurality of spraying mechanisms are installed on the cooling device 7, and the coolant is sprayed on the cutting area in batches.

[0037] The spraying mechanism includes a branch pipe 705 connected to the surface of the vertical pipe 701. The air chamber 702 is connected to the branch pipe 705. 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. A passive piston block 706 is inserted into the interior of the branch pipe 705. Since the passive piston block 706 seals the interior of the branch pipe 705, the branch pipe 705 is connected to the air chamber 702 and remains sealed.

[0038] When the active piston block 703 compresses the gas in the air chamber 702, the gas in the branch pipe 705 will be compressed synchronously. As a result, the air pressure in the air chamber 702 will have a force to push the passive piston block 706 to slide upward. A limiting mechanism is connected to the branch pipe 705. Before being triggered, the passive piston block 706 is always kept in a fixed position in the branch pipe 705, so that the air pressure in the air chamber 702 cannot push the passive piston block 706 to slide upward. Further, when the active piston block 703 slides down and squeezes the gas in the air chamber 702, the kinetic energy of the ring cutting tool will be converted into the compressed energy inside the air chamber 702.

[0039] When the limiting mechanism receives a trigger signal, the fixation of the passive piston block 706 in the branch pipe 705 will be released. As a result, the passive piston block 706 will slide upward inside the branch pipe 705 under the action of the compressed energy in the air chamber 702.

[0040] Above the passive piston block 706 inside the branch pipe 705, there is a sealed liquid cavity 707. The surface of the branch pipe 705 is also connected with a water pipe 721. One end of the water pipe 721 is communicated with the container 8, and the other end of the water pipe 721 is communicated with the inside of the liquid cavity 707. And a check valve is provided at the connection between the liquid cavity 707 and the water pipe 721 to control that the coolant in the liquid cavity 707 cannot be discharged from the water pipe 721 into the container 8. When the passive piston block 706 slides upward inside the branch pipe 705, the coolant in the liquid cavity 707 will be extruded.

[0041] A spray head 720 is connected to the branch pipe 705 through a rotary joint 719, and the spray head 720 faces the cutting area of the circumferential cutting tool for the hardware workpiece.

[0042] A check valve is also provided inside the spray head 720, so that the coolant in the liquid cavity 707 can only be sprayed out from the spray head 720.

[0043] When the coolant in the liquid cavity 707 is ejected from the spray head 720 under the action of the compression energy, it will be sprayed on the cutting area, and then cool the circumferential cutting tool and the surface of the hardware workpiece in the cutting area, reducing the influence of the heat generated by cutting on the sliding positioning device 6 to maintain the accuracy of the circumferential cutting tooling for long-term use.

[0044] In addition, the sprayed coolant can ensure that the chips in the cutting area are removed in time, avoiding interference with the processing process, thereby improving the processing accuracy and production efficiency.

[0045] More specifically, the limiting mechanism includes a sleeve 709 connected to the surface of the branch pipe 705. There is an opening on the surface of the branch pipe 705 and it is communicated with the inside of the sleeve 709. Inside the sleeve 709, a latch 711 is connected through a first spring 710, and the latch 711 is inserted into the opening on the surface of the branch pipe 705 in a matching manner. When the latch 711 is not affected by an external force, under the elastic force of the first spring 710, the latch 711 is pulled towards the branch pipe 705 side, and further one end of the latch 711 penetrates into the inside of the branch pipe 705. A limiting hole 708 adapted to the latch 711 is provided on the surface of the passive piston block 706. When the limiting mechanism limits and fixes the passive piston block 706, the latch 711 is just inserted into the limiting hole 708 provided 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 inside the branch pipe 705.

[0046] An electromagnet 716 is also installed on the surface of the sleeve 709. When the limit mechanism receives the release signal, the electromagnet 716 is energized to generate magnetic force, and attracts the metal pin 711 to slide toward the side of the electromagnet 716, so that the pin 711 overcomes the elastic force of the first spring 710, and slides in the limit hole 708, and retracts into the sleeve 709 through the opening on the surface of the branch pipe 705, so that the passive piston block 706 will squeeze the coolant in the liquid cavity 707 under the action of the compression energy in the air cavity 702, thereby realizing the spraying of the coolant.

[0047] The difference is that the surface of the branch pipe 705 is also connected to a support rod 712, and a clamping block 713 is slidably mounted on the surface of the support rod 712 via a second spring 714. The clamping block 713 is perpendicular to the surface of the mounting rod 704. Under the elastic force of the second spring 714, the clamping block 713 always contacts the surface of the mounting rod 704.

[0048] The surface of the mounting rod 704 is provided with a limiting slot 715, which faces the side of the block 713. The lower end of the limiting slot 715 is configured as an inclined surface, and the upper end is provided with a vertical angle. As the branch pipe 705 slides downward, the block 713 always contacts the surface of the mounting rod 704 until the mounting rod 704 slides until the limiting slot 715 and the block 713 are aligned. When the block 713 and the limiting slot 715 are aligned, the block 713 first inserts into the limiting slot 715 under the elastic force of the second spring 714, and gradually slides inward against the inclined surface of the limiting slot 715. As the mounting rod 704 slides downward, it inserts into the vertical angle of the limiting slot 715, further limiting the mounting rod 704.

[0049] Since the mounting rod 704 is mounted on the circular cutting tool, the circular cutting tool is limited and blocked, and the circular cutting tool is paused.

[0050] This effectively reduces heat accumulation in the cutting area and reduces the risk of thermal deformation caused by the thermal expansion effect of heat on the hardware workpiece and the sliding positioning device 6, thereby maintaining cutting stability and accuracy.

[0051] At the same time, by installing a pressure sensor and a delay controller on the upper surface of the block 713, when the block 713 is inserted into the limit slot 715, the pressure sensor on the upper surface of the block 713 will contact the vertical angle of the limit slot 715, thereby delaying the triggering of the release signal of the limit mechanism, so that the block 713 blocks the downward movement of the installation rod 704, and after maintaining it for a period of time, triggers the spraying of coolant to cool down the machine.

[0052] Furthermore, during the cutting pause time, the stress inside the hardware workpiece can be released to a certain extent, reducing the risk of micro-crack formation caused by temperature changes caused by direct spraying of coolant, thereby improving the processing quality.

[0053] 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 an inclined surface 718. After the clamping block 713 is inserted into the limit clamping groove 715, the upper end of the push rod 717 is just aligned with the inclined surface 718.

[0054] When the limiting mechanism releases the restriction on the passive piston block 706, the passive piston block 706 slides upward under the action of the compression energy inside the air chamber 702 and pushes the liquid chamber 707 to slide upward; furthermore, the push rod 717 abuts against the surface of the inclined surface 718 and pushes the clamping block 713 to extrude the second spring 714 on the support rod 712, overcoming the elastic force of the second spring 714, and sliding away from the mounting rod 704, realizing the sliding out of the clamping block 713 from the limit clamping groove 715 to release the limit of the clamping block 713 on the mounting rod 704; enabling the cutting tool to continue the cutting operation under the pressure of the hydraulic device.

[0055] It should be noted that a plurality of spraying mechanisms are installed on the vertical pipe 701, and the plurality of spraying mechanisms are staggered and distributed at different height positions on the surface of the vertical pipe 701, and the same structural components are installed in each group of spraying mechanisms; a plurality of limit clamping grooves 715 corresponding to the spraying mechanisms are also provided on the mounting rod 704.

[0056] Furthermore, during the downward sliding of the mounting rod 704, multiple pause limits and spraying of coolant for cooling can be formed, so that during the cutting of the hardware workpiece, the problems caused by cutting can be reduced in stages, thus avoiding overheating phenomena and the influence of heat on the thermal expansion of the sliding positioning device 6, and ensuring long-term processing accuracy and quality.

[0057] The processing efficiency and safety of the hardware workpiece are improved, and an effective solution is also provided for the processing of high-precision and complex materials, which can better meet the increasingly high requirements of modern manufacturing for cutting processing.

[0058] The nozzle 720 can rotate through the rotary joint 719 to adjust the direction of the coolant sprayed by the nozzle 720 to adapt to hardware workpieces of different shapes, thereby realizing the precise spraying and cooling of the cutting area by the coolant.

[0059] At the same time, the nozzles 720 installed on each group of branch pipes 705 have different heights. During the cutting of the hardware workpiece, as the cutting depth changes, the shape and area of the cutting area will also change. Setting nozzles 720 with different heights can ensure that the coolant can fully cover all cutting areas, keep the temperature of the cutting area uniform, and avoid thermal stress and deformation caused by uneven distribution of the coolant.

[0060] And when the active piston block 703 slides downward to compress the gas in the air chamber 702, after the active piston block 703 completes the release of the compression energy in the upper branch pipe 705, the air pressure in the air chamber 702 will become smaller; 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 air chamber 702. Then, during the continuous downward sliding of the active piston block 703, the gas in the air chamber 702 can be compressed again, realizing the accumulation of compression energy in the lower branch pipe 705, and further realizing continuous coolant spraying operation.

[0061] After the cutting is completed, when the hydraulic equipment drives the circumferential cutting tool to rise and reset, it will synchronously connect the mounting rod 704 to drive the active piston block 703 to slide upward in the air chamber 702. A negative pressure will be generated during the upward sliding process, and then the passive piston block 706 will slide downward and reset in the branch pipe 705; during the reset process of the branch pipe 705, coolant will be pumped into the liquid chamber 707 from the container 8 through the water pipe 721, realizing the filling of the coolant in the liquid chamber 707, which is convenient for spraying and cooling during the next cutting.

[0062] At the same time, as the height of the active piston block 703 rises, the passive piston block 706 will slide to the initial position in the branch pipe 705, that is, the position where the limit hole 708 is aligned with the opening on the surface of the branch pipe 705. At this time, the limit mechanism is turned on again, the electromagnet 716 is powered off and loses its magnetic force, and the bolt 711 is reset under the elastic force of the first spring 710 and penetrates the opening provided on the surface of the branch pipe 705 and inserts into the limit hole 708, thereby restricting and fixing the passive piston block 706, which is convenient for the accumulation of compression energy during the next operation.

[0063] In this solution, through the setting of the support table 4 and the steel ruler 5, the cutting process of the hardware workpiece is simplified, the traditional drawing process is cancelled, and the processing is directly carried out on the circumferential cutting machine using the circumferential cutting tooling, reducing the operation process; in addition, by using the 90-degree angle of the support table 4 and the sliding positioning device 6 for the hardware workpiece, the error caused by manual operation can be reduced, the processing accuracy can be improved, and the production efficiency can be improved.

[0064] Embodiment 2: Please refer to the appendix Figure 1-6 , on the basis of Embodiment 1, this solution proposes a circumferential cutting tooling processing method for hardware product processing, including the following steps: Step 1: Place the hardware workpiece on the support table 4 to ensure that the hardware workpiece is in close contact with the positioning surface of the sliding positioning device 6; Step 2: Use the lifting and adjusting mechanism 3 to finely adjust the support table 4 to ensure accurate positioning of the hardware product; Step 3: Determine the cutting position with a steel ruler 5, start the ring cutting machine, and perform ring cutting on the hardware product. No manual intervention is required during the processing, improving the processing accuracy and efficiency; Step 4: Convert the kinetic energy of the ring cutting tool into the compressed energy inside the air chamber 702, and delay the release of the compressed energy after the ring cutting tool is limited and paused. Use the compressed energy to spray the coolant on the cutting area for cooling; Step 5: Repeat Step 4 until the cutting is completed.

[0065] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circumferential cutting tooling for hardware product processing, comprising a mounting base (2), characterized in that, A support table (4) is mounted on the mounting base (2) through a lifting adjustment mechanism (3). A steel ruler (5) and a sliding positioning device (6) for positioning the cutting of hardware workpieces are provided on the support table (4). A cooling device (7) and a container (8) are also mounted on the lifting adjustment mechanism (3). Among them, the cooling device (7) includes a vertical pipe (701) connected to the container (8). A driving piston block (703) is slidably mounted in the vertical pipe (701). The driving piston block (703) is connected to the circumferential cutting tool through a mounting rod (704), and converts the cutting kinetic energy of the circumferential cutting tool into compression energy in the air chamber (702) during cutting. A spraying mechanism is also connected to the vertical pipe (701). A limiting mechanism is mounted on the branch pipe (705) to control the release of the compression energy. The spraying mechanism sprays the coolant in the liquid chamber (707) onto the cutting area when the compression energy is released.

2. The circumferential cutting tooling for hardware product processing according to claim 1, characterized in that, The spraying mechanism includes a branch pipe (705) connected to the surface of the vertical pipe (701). The branch pipe (705) communicates with the air chamber (702) provided in the vertical pipe (701). A driven piston block (706) is inserted into the interior of the branch pipe (705). A liquid chamber (707) is provided above the driven piston block (706) inside the branch pipe (705).

3. A circumferential cutting tooling for hardware product processing according to claim 2, characterized in that, The limiting mechanism includes an electromagnet (716) connected to the surface of the branch pipe (705). An opening communicating with the sleeve (709) is provided on the surface of the branch pipe (705). A plug (711) is connected to the interior of the sleeve (709) through a first spring (710). A limiting hole (708) adapted to the plug (711) is provided on the surface of the driven piston block (706). An electromagnet (716) is also mounted on the surface of the sleeve (709).

4. A circumferential cutting tooling for hardware product processing according to claim 3, characterized in that, A support rod (712) is also connected to the surface of the branch pipe (705). A clamping block (713) is slidably mounted on the surface of the support rod (712) through a second spring (714). The clamping block (713) is perpendicular to the surface of the mounting rod (704). A limiting card slot (715) facing the clamping block (713) is provided on the surface of the mounting rod (704). The lower end of the limiting card slot (715) is beveled and the upper end has a vertical angle.

5. A circumferential cutting tooling for hardware product processing according to claim 4, characterized in that, A pressure sensor and a delay controller are mounted on the upper surface of the clamping block (713).

6. A circumferential cutting tooling for hardware product processing according to claim 5, characterized in that, A push rod (717) is connected to the upper surface of the driven piston block (706). The upper end of the push rod (717) penetrates to the outside of the branch pipe (705). An inclined surface (718) is provided on the lower end surface of the clamping block (713).

7. The circumferential cutting tooling for hardware product processing according to claim 6, wherein, A plurality of spraying mechanisms are mounted on the vertical pipe (701). The plurality of spraying mechanisms are staggered and distributed at different height positions on the surface of the vertical pipe (701). A plurality of limiting card slots (715) corresponding to the spraying mechanisms are also provided on the mounting rod (704).

8. A circumferential cutting tooling for hardware product processing according to claim 7, characterized in that, A water pipe (721) is connected to the surface of the branch pipe (705). One end of the water pipe (721) is communicated with the container (8), and the other end of the water pipe (721) is communicated with the inside of the liquid cavity (707). A one-way valve is provided at the connection between the liquid cavity (707) and the water pipe (721). A spray head (720) is connected to the branch pipe (705) through a rotary joint (719).

9. A processing method of a circumferential cutting tooling for hardware product processing according to any one of claims 1-8, characterized in that, It includes the following steps: Step 1: Place the hardware workpiece on the support table (4) and position the hardware workpiece using the sliding positioning device (6); Step 2: Adjust the height of the support table (4) using the lifting adjustment mechanism (3); Step 3: Determine the cutting position through a steel ruler (5), start the circumferential cutting machine, and perform circumferential cutting on the hardware product; Step 4: Convert the kinetic energy of the circumferential cutting tool into the compression energy inside the air cavity (702), and delay the release of the compression energy after the circumferential cutting tool is limited and paused. Use the compression energy to spray the coolant on the cutting area for cooling; Step 5: Repeat Step 4 until the cutting is completed.

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