A tool for making a crack-limiting hole in a high-hardness material

Abstract

The utility model relates to crack restriction hole preparation technical field discloses a kind of high-hardness material crack restriction hole preparation tools, including workbench, the top rear side of workbench is fixedly connected with bearing frame, the front side of bearing frame is provided with preparation mechanism, the preparation mechanism is used to carry out hole making to material, the top of workbench is provided with fixed mechanism, the fixed mechanism is used to fix material, the inner side of bearing frame is provided with heat dissipation mechanism between adjacent, the front side left end of bearing frame is provided with temperature measuring mechanism, the preparation mechanism includes mounting plate.In the utility model, spring one connection sliding block column and mounting block form elastic buffer structure, reduce tool chipping and hole wall crack risk, the laser module of mounting block bottom all around makes high-hardness material local softening reduce cutting resistance, improve hole wall quality and processing efficiency, reduce tool wear, expand the application in high-precision scene.

Description

Technical Field

[0001] This utility model relates to the field of crack confinement hole preparation technology, and in particular to a tool for preparing crack confinement holes in high-hardness materials. Background Technology

[0002] High-hardness materials refer to materials with extremely strong resistance to pressure, wear, and scratches. Their hardness is higher than that of ordinary materials. They are characterized by tight molecular atomic bonding and stable structure. Common types include metallic hardened steel and cemented carbide, as well as non-metallic ceramics and superhard materials. These materials are used in aerospace, precision molds, and geological drilling fields due to their high strength and corrosion resistance.

[0003] In the fields of aerospace, precision molds and high-end equipment manufacturing, high-hardness materials are characterized by high strength and high brittleness, which can cause cracks to form and spread rapidly during use, affecting the safety of components. With the development of industrial technology, special hole-making tools suitable for high-hardness materials have been developed to overcome the limitations of traditional tools in terms of hardness, wear resistance, cooling and chip removal and processing adaptability. This enables the precise and efficient preparation of crack-limited holes, improving the reliability and service life of components.

[0004] In practical applications, tools for preparing crack-limited holes in high-hardness materials lack an efficient adaptive buffering mechanism during hole preparation, making it difficult to cope with uneven material hardness or sudden impacts. This can lead to tool chipping or new cracks in the hole wall, affecting machining accuracy and tool life. Furthermore, existing tools lack a material softening function in the hole preparation area, causing the material to fracture due to brittle fracture and resulting in chipping, making it difficult to guarantee hole wall quality and limiting their application in high-precision scenarios. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tool for preparing crack-limited holes in high-hardness materials. It aims to improve the existing technology, which lacks an efficient adaptive buffering mechanism during hole making, resulting in tool chipping or new cracks in the hole wall, affecting machining accuracy. It also addresses the lack of material softening function in the hole-making area of ​​existing tools, which causes material to break due to brittle fracture, making it difficult to guarantee the quality of the hole wall and limiting its application in high-precision scenarios.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tool for preparing crack-limiting holes in high-hardness materials, comprising a worktable, a support frame fixedly connected to the top rear side of the worktable, a preparation mechanism provided on the front side of the support frame for preparing holes in the material, a fixing mechanism provided on the top of the worktable for fixing the material, a heat dissipation mechanism provided between adjacent parts on the inner side of the support frame, and a temperature measuring mechanism provided on the front left end of the support frame;

[0007] The preparation mechanism includes a mounting plate, the rear side of which is fixedly connected to the top front side of the support frame. A rotating motor is fixedly connected to the top of the mounting plate. A slide rail sleeve is provided at the bottom of the mounting plate. A hydraulic rod is fixedly connected to the top inner side of the slide rail sleeve. A slider column is fixedly connected to the output end of the hydraulic rod. A spring is fixedly connected to the bottom of the slider column. A mounting block is fixedly connected to the bottom of the spring. Laser modules are fixedly connected to all four sides of the bottom of the mounting block. A spiral drill bit is fixedly connected to the bottom of the mounting block. A cooling component is provided at the top of the mounting block. A monitoring component is provided at the front bottom of the mounting plate.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes two limiting groove plates, the bottoms of which are fixedly connected to the top left and right sides of the workbench, respectively. Multiple rubber pads are fixedly connected to the bottom inner side of the left limiting groove plate. Two sponge pads are fixedly connected to the front and rear sides of the top of the support frame. Two threaded rods are threadedly connected to the left side of the limiting groove plate. A knob is fixedly connected to the left end of each of the two threaded rods, and a clamping block is fixedly connected to the right end of each of the two threaded rods. A shielding component is provided on the top front side of the support frame.

[0010] As a further description of the above technical solution:

[0011] The cooling assembly includes a second spring, the top of which is fixedly connected to the bottom of the mounting block, and a mounting ring is fixedly connected to the bottom of the second spring. Multiple water-cooling pipes pass through adjacent mounting blocks and mounting rings.

[0012] As a further description of the above technical solution:

[0013] The monitoring component includes a storage module, the top of which is fixedly connected to the bottom front side of the mounting plate, and miniature cameras are fixedly connected to the bottom left and right sides of the storage module.

[0014] As a further description of the above technical solution:

[0015] The shielding assembly includes a baffle plate one. The top front side of the support frame has an installation groove. The baffle plate one is disposed inside the installation groove. Multiple installation columns are fixedly connected to the top of the baffle plate one. The top of each of the multiple installation columns is fixedly connected to a baffle plate two.

[0016] As a further description of the above technical solution:

[0017] The heat dissipation mechanism includes a mounting bracket, the outer side of which is fixedly connected to the inner side of the support frame, and a small fan is fixedly connected to the inner side of the mounting bracket.

[0018] As a further description of the above technical solution:

[0019] Multiple sponge buffer columns are fixedly connected to the bottom of the slider column and the adjacent mounting blocks, and a safety groove is provided on the top of the support frame.

[0020] As a further description of the above technical solution:

[0021] The temperature measuring mechanism includes a temperature sensor, the rear side of which is fixedly connected to the bottom of the front left end of the support frame, and an alarm is fixedly connected to the front left end of the support frame.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a spring connects the slider column and the mounting block to form an elastic buffer structure. When encountering uneven material hardness or impact during hole making, it can compress and absorb energy, reducing the risk of tool chipping and hole wall cracking. The laser module around the bottom of the mounting block preheats the hole making area with laser before processing, which softens the high-hardness material locally and reduces cutting resistance. The spiral drill bit performs mechanical cutting simultaneously, improving the hole wall quality and processing efficiency, reducing tool wear, and expanding its application in high-precision scenarios.

[0024] 2. In this utility model, the limiting groove plates on both sides are combined with threaded rods and knobs for adjustment. The clamping blocks apply controllable clamping force to the material to meet the fixing requirements of workpieces of different sizes. The rubber pads and sponge pads form elastic buffer layers at the bottom and top, respectively, and can prevent displacement by increasing the friction coefficient of the contact surface. The cooperation between the clamping blocks and the limiting groove plates forms multi-directional constraints, which effectively limit the vibration and displacement of the support frame during processing, ensure the accuracy of the hole making position, and improve the stability and reliability of processing. Attached Figure Description

[0025] Figure 1 This is a perspective view of a tool for preparing crack-limiting holes in high-hardness materials according to the present invention.

[0026] Figure 2 This is a front view of a tool for preparing crack-limiting holes in high-hardness materials according to the present invention.

[0027] Figure 3 This is an exploded view of the preparation mechanism in a tool for preparing crack-limiting holes in high-hardness materials according to this utility model.

[0028] Figure 4 This is an exploded view of the fixing mechanism in a tool for preparing crack-limiting holes in high-hardness materials according to this utility model;

[0029] Figure 5This is a schematic diagram of the monitoring component in a tool for preparing crack-limiting holes in high-hardness materials according to this utility model.

[0030] Legend:

[0031] 1. Workbench; 2. Support frame; 3. Preparation mechanism; 301. Mounting plate; 302. Rotary motor; 303. Slide rail sleeve; 304. Hydraulic rod; 305. Sliding block; 306. Spring one; 307. Mounting block; 308. Laser module; 309. Spiral drill bit; 311. Cooling assembly; 3111. Mounting ring; 3112. Water cooling pipe; 3113. Spring two; 312. Monitoring assembly; 3121. Storage module; 3122. Miniature camera; 4. Fixing mechanism; 401, limiting groove plate; 402, rubber pad; 403, sponge pad; 404, knob; 405, threaded rod; 406, clamping block; 407, shielding assembly; 4071, mounting groove; 4072, baffle one; 4073, mounting post; 4074, baffle two; 5, heat dissipation mechanism; 501, mounting bracket; 502, small fan; 6, temperature measuring mechanism; 601, temperature sensor; 602, alarm; 7, sponge buffer post; 8, safety groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 5 This utility model provides an embodiment of a tool for preparing crack-limiting holes in high-hardness materials, including a workbench 1, a support frame 2 fixedly connected to the top rear side of the workbench 1, a preparation mechanism 3 provided on the front side of the support frame 2, the preparation mechanism 3 being used to make holes in the material, a fixing mechanism 4 provided on the top of the workbench 1, the fixing mechanism 4 being used to fix the material, a heat dissipation mechanism 5 provided between adjacent inner sides of the support frame 2, used to enhance heat dissipation while blowing away debris generated during hole making, and a temperature measuring mechanism 6 provided on the front left end of the support frame 2, used to monitor the temperature and prevent excessive temperature from causing safety hazards;

[0034] The manufacturing mechanism 3 includes a mounting plate 301, the rear side of which is fixedly connected to the top front side of the support frame 2. A rotating motor 302 is fixedly connected to the top of the mounting plate 301. A slide rail sleeve 303 is provided at the bottom of the mounting plate 301. A hydraulic rod 304 is fixedly connected to the top inner side of the slide rail sleeve 303. A slider column 305 is fixedly connected to the output end of the hydraulic rod 304. A spring 306 is fixedly connected to the bottom of the slider column 305. A mounting block 307 is fixedly connected to the bottom of the spring 306. The spring 306 connects to the slider. The column 305 and the mounting block 307 form an elastic buffer structure. When encountering uneven material hardness or impact during hole making, it can compress and absorb energy. Laser modules 308 are fixedly connected to the bottom four sides of the mounting block 307. The laser modules 308 on the bottom four sides of the mounting block 307 preheat the hole making area with laser before processing, so that the high hardness material is locally softened and the cutting resistance is reduced. A spiral drill bit 309 is fixedly connected to the bottom of the mounting block 307. A cooling component 311 is provided on the top of the mounting block 307. A monitoring component 312 is provided on the bottom front side of the mounting plate 301.

[0035] The mounting plate 301 in the preparation mechanism 3 is securely connected to the support frame 2, providing solid support for the overall structure. The rotating motor 302 at the top can drive the spiral drill bit 309 to rotate at high speed, providing power for hole making. The lifting system composed of the slide sleeve 303 and the hydraulic rod 304 can achieve precise control of the drill bit height to meet the processing needs of materials of different thicknesses. The elastic buffer structure formed by the spring-306 connecting the slider column 305 and the mounting block 307 can quickly compress and deform during the hole making process if it encounters uneven material hardness or sudden impact, absorbing and dispersing the impact force, effectively preventing tool chipping or hole wall damage, and ensuring processing accuracy and tool life. With a long service life, the laser modules 308, evenly distributed around the bottom of the mounting block 307, can precisely preheat the material surface before drilling. Through the thermal effect of the laser, the high-hardness material is locally softened, greatly reducing cutting resistance. This not only reduces the chipping of hard and brittle materials but also significantly improves the hole wall quality, avoiding processing defects caused by high material hardness in traditional machining. Driven by the rotating motor 302, the spiral drill bit 309, combined with the dual assistance of laser softening and elastic buffering, can efficiently and stably complete the preparation of crack-limited holes, greatly improving processing efficiency and quality. It is suitable for aerospace and precision mold fields with extremely high requirements for drilling accuracy.

[0036] Reference Figure 1 , Figure 2 and Figure 4The fixing mechanism 4 includes two limiting groove plates 401. The bottom of the two limiting groove plates 401 is fixedly connected to the top left and right sides of the workbench 1, respectively. Multiple rubber pads 402 are fixedly connected to the bottom inner side of the left limiting groove plate 401. Two sponge pads 403 are fixedly connected to the front and rear sides of the top of the support frame 2. Two threaded rods 405 are threadedly connected to the left side of the limiting groove plate 401. A knob 404 is fixedly connected to the left end of each of the two threaded rods 405. A clamping block 406 is fixedly connected to the right end of each of the two threaded rods 405. The limiting groove plates 401 on both sides are adjusted in conjunction with the threaded rods 405 and the knobs 404. A controllable clamping force is applied to the material through the clamping block 406, forming a multi-directional constraint. A shielding component 407 is provided on the top front side of the support frame 2.

[0037] Two limiting slot plates 401 in the fixing mechanism 4 are symmetrically installed on the left and right sides of the top of the workbench 1, forming a stable basic frame and providing a positioning reference for material fixing. The rubber pad strip 402 on the bottom inner side of the left limiting slot plate 401, together with the sponge pad block 403 on the front and rear sides of the top of the support frame 2, constitute a flexible buffer layer, which not only avoids rigid damage to the surface of the material, but also effectively enhances the friction between the material and the limiting structure through the high friction characteristics of rubber and sponge, preventing the material from sliding and shifting during processing. The operator rotates the knob 404 to drive the threaded rod 405 to move left and right on the limiting slot plate 401, thereby pushing the clamping block 406 to apply pressure to the material. The threaded structure ensures the stable maintenance of the clamping force and avoids the clamping loosening due to processing vibration. The clamping blocks 406 on both sides, together with the limiting slot plate 401, form a multi-directional constraint on the material, achieving a tight fit and fixing effect, effectively limiting the displacement and vibration of the material during processing, and can also flexibly adjust the clamping range according to the material size, greatly improving the applicability and versatility of the fixing mechanism 4, and ensuring the accuracy and stability of subsequent processing.

[0038] Reference Figure 1 , Figure 3 and Figure 4 The cooling component 311 includes a second spring 3113, the top of which is fixedly connected to the bottom of the mounting block 307. A mounting ring 3111 is fixedly connected to the bottom of the second spring 3113. Multiple water-cooling pipes 3112 pass through adjacent mounting blocks 307 and mounting rings 3111 for cooling the auger bit 309. The monitoring component 312 includes a storage module 3121, the top of which is fixedly connected to the bottom front side of the mounting plate 301. Miniature cameras 3122 are fixedly connected to the left and right sides of the bottom of the storage module 3121. The shielding component 407 includes a first baffle 4072. A mounting groove 4071 is opened on the top front side of the support frame 2. The first baffle 4072 is located inside the mounting groove 4071. Multiple mounting posts 4073 are fixedly connected to the top of the first baffle 4072. A second baffle 4074 is fixedly connected to the top of each of the multiple mounting posts 4073.

[0039] The cooling assembly 311, through the combination of spring 3113 and water-cooling pipe 3112, effectively solves the heat dissipation problem during the drilling process of high-hardness materials. Spring 3113 elastically connects the mounting block 307 and the mounting ring 3111, which can adaptively adjust its position with the rise and fall of the drill bit during operation, and can also buffer vibration through elastic deformation to prevent damage to the water-cooling pipe 3112 due to rigid collision. Multiple water-cooling pipes 3112 pass through the mounting block 307 and the mounting ring 3111 to form a surrounding cooling channel. The coolant circulates in the pipes, carrying away the heat generated by the auger drill bit 309 during cutting, preventing the drill bit from losing hardness due to high-temperature annealing, reducing material deformation caused by thermal stress, ensuring drilling accuracy, and allowing the coolant to be replaced at any time through the top sealing cap. The monitoring assembly 312 is equipped with a miniature camera 312. 2. Real-time monitoring of the processing process is achieved. The storage module 3121 is fixed to the bottom of the mounting plate 301, providing data storage and processing capabilities for the miniature camera 3122. The miniature cameras 3122 on the left and right sides capture the contact area between the drill bit and the material from different angles, clearly observing the wear state of the drill bit, the chip shape, and the hole wall quality. The shielding component 407 effectively protects the processing area through the combination of baffle one 4072 and baffle two 4074. The mounting groove 4071 provides stable support for baffle one 4072 and can be disassembled at any time. Baffle one 4072 and baffle two 4074 are connected by the mounting column 4073 to form a protective structure, which can block chip splashing, protect the safety of operators, improve the safety and cleanliness of the working environment, and enable the equipment to achieve efficient hole making while taking into account safety and quality monitoring.

[0040] Reference Figure 1 , Figure 2 and Figure 5 The heat dissipation mechanism 5 includes a mounting bracket 501. The outer side of the mounting bracket 501 is fixedly connected to the inner side of the support frame 2. A small fan 502 is fixedly connected to the inner side of the mounting bracket 501 to enhance heat dissipation and blow away debris generated during hole making. Multiple sponge buffer columns 7 are fixedly connected between the bottom of the slider column 305 and the adjacent mounting block 307. A safety groove 8 is provided on the top of the support frame 2. The temperature measuring mechanism 6 includes a temperature sensor 601. The rear side of the temperature sensor 601 is fixedly connected to the bottom of the front left end of the support frame 2. An alarm 602 is fixedly connected to the front left end of the support frame 2 to monitor the temperature and prevent excessive temperature from causing safety hazards.

[0041] The mounting bracket 501 in the heat dissipation mechanism 5 is securely mounted inside the support frame 2. The small fan 502 on it enhances the heat dissipation effect with directional airflow. It can not only quickly dissipate the large amount of heat generated during drilling, preventing the equipment from degrading due to high temperature, but also promptly blow away metal chips or powder adhering to the processing area, preventing chip accumulation from affecting drilling accuracy. The multiple sponge buffer pillars 7 between the slider column 305 and the mounting block 307 further optimize the equipment's buffering performance. When the drill bit encounters a sudden change in material hardness or impact force, the sponge buffer pillars 7 absorb the instantaneous impact through flexible compression, avoiding damage to the drill bit and material caused by rigid collisions. Simultaneously, it forms a double buffer system with spring 306 to ensure the stability of the drilling process and effectively extend the tool life. The temperature measuring mechanism 6 works with temperature sensor 601 and alarm 602. Temperature sensor 601 monitors the temperature change of the drilling area in real time. Once the temperature exceeds the preset threshold, it immediately sends a signal to alarm 602 to trigger an audible and visual alarm to remind the operator to take measures to prevent equipment failure or fire safety hazards caused by excessive temperature. The safety groove 8 provides a safe space during drilling to prevent the spiral drill bit 309 from accidentally touching the worktable 1, thus comprehensively ensuring the safe operation of the equipment and the stability of the processing environment.

[0042] Working principle: The material to be processed is placed on the worktable 1 and secured by the fixing mechanism 4. The operator rotates the knob 404 on the limiting groove plate 401, which drives the threaded rod 405 to push the clamping block 406 to apply clamping force to the material. The rubber pad 402 and the sponge pad 403 provide cushioning and enhance friction to prevent the material from slipping. At the same time, the baffle 1 4072 and baffle 2 4074 of the shielding component 407 form a protective structure to block the splashing of chips during processing. After the preparation mechanism 3 is started, it rotates... Motor 302 drives auger drill bit 309 to rotate at high speed. Hydraulic rod 304 drives slide block 305, mounting block 307 and drill bit to rise and fall as a whole through slide sleeve 303, adjusting to a suitable processing position. Before drilling, laser modules 308 around the bottom of mounting block 307 preheat the material drilling area with laser to soften high-hardness materials and reduce cutting resistance. If uneven material hardness or sudden impact is encountered during drilling, spring 306 and sponge buffer column 7 work together to absorb the impact through elastic deformation. The cooling component 311 uses a spring 3113 to connect the mounting block 307 and the mounting ring 3111, ensuring that the coolant in the water-cooling pipe 3112 circulates and carries away the cutting heat, preventing drill bit annealing and material thermal deformation. The monitoring component 312's miniature camera 3122 captures real-time images of the drill bit and material contact area, transmitting the images to the storage module 3121 for storage and analysis. This allows operators to monitor drill bit wear, chip morphology, and hole wall quality. The cooling mechanism 5's small fan 502 operates continuously, and the directional airflow enhances overall equipment cooling and blows away debris generated during hole making, preventing debris accumulation from interfering with processing. The temperature sensor 601 of the temperature measuring mechanism 6 monitors the temperature of the hole-making area in real time. Once the temperature exceeds the safety threshold, the alarm 602 is immediately triggered to issue an audible and visual alarm, reminding the operator to pause processing and enhance cooling. All mechanisms form a complete closed loop from material fixing, hole making, process monitoring to safety protection, ensuring efficient, accurate, and safe preparation of high-hardness material crack-limited holes.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for preparing crack-confined holes in high-hardness materials, comprising a worktable (1), characterized in that: A support frame (2) is fixedly connected to the top rear side of the workbench (1). A preparation mechanism (3) is provided on the front side of the support frame (2). The preparation mechanism (3) is used to make holes in the material. A fixing mechanism (4) is provided on the top of the workbench (1). The fixing mechanism (4) is used to fix the material. A heat dissipation mechanism (5) is provided between adjacent inner sides of the support frame (2). A temperature measuring mechanism (6) is provided on the left front end of the support frame (2). The preparation mechanism (3) includes a mounting plate (301), the rear side of which is fixedly connected to the top front side of the support frame (2). A rotating motor (302) is fixedly connected to the top of the mounting plate (301). A slide rail sleeve (303) is provided at the bottom of the mounting plate (301). A hydraulic rod (304) is fixedly connected to the top inner side of the slide rail sleeve (303). A slider column (305) is fixedly connected to the output end of the hydraulic rod (304). A spring (306) is fixedly connected to the bottom of the slider column (305). A mounting block (307) is fixedly connected to the bottom of the spring (306). A laser module (308) is fixedly connected to the bottom of the mounting block (307). A spiral drill bit (309) is fixedly connected to the bottom of the mounting block (307). A cooling component (311) is provided at the top of the mounting block (307). A monitoring component (312) is provided at the front bottom of the mounting plate (301).

2. The tool for preparing crack-confined holes in high-hardness materials according to claim 1, characterized in that: The fixing mechanism (4) includes two limiting slots (401). The bottom of the two limiting slots (401) is fixedly connected to the top left and right sides of the workbench (1). Multiple rubber pads (402) are fixedly connected to the bottom inner side of the left limiting slot (401). Two sponge pads (403) are fixedly connected to the front and rear sides of the top of the support frame (2). Two threaded rods (405) are threadedly connected to the left side of the limiting slot (401). A knob (404) is fixedly connected to the left end of each of the two threaded rods (405). A clamping block (406) is fixedly connected to the right end of each of the two threaded rods (405). A shielding component (407) is provided on the top front side of the support frame (2).

3. The tool for preparing crack-confining holes in high-hardness materials according to claim 1, characterized in that: The cooling assembly (311) includes a second spring (3113), the top of which is fixedly connected to the bottom of the mounting block (307), and the bottom of which is fixedly connected to a mounting ring (3111). Multiple water-cooling pipes (3112) pass through adjacent mounting blocks (307) and mounting rings (3111).

4. The tool for preparing crack-confined holes in high-hardness materials according to claim 1, characterized in that: The monitoring component (312) includes a storage module (3121), the top of which is fixedly connected to the bottom front side of the mounting plate (301), and miniature cameras (3122) are fixedly connected to the bottom left and right sides of the storage module (3121).

5. The tool for preparing crack-confining holes in high-hardness materials according to claim 2, characterized in that: The shielding assembly (407) includes a baffle one (4072), and the top front side of the support frame (2) is provided with an installation groove (4071). The baffle one (4072) is disposed inside the installation groove (4071). Multiple installation posts (4073) are fixedly connected to the top of the baffle one (4072), and baffle two (4074) are fixedly connected to the top of each of the multiple installation posts (4073).

6. The tool for preparing crack-confined holes in high-hardness materials according to claim 1, characterized in that: The heat dissipation mechanism (5) includes a mounting bracket (501), the outer side of which is fixedly connected to the inner side of the support frame (2), and a small fan (502) is fixedly connected to the inner side of the mounting bracket (501).

7. The tool for preparing crack-confining holes in high-hardness materials according to claim 1, characterized in that: Multiple sponge buffer columns (7) are fixedly connected to the bottom of the slider column (305) and the adjacent mounting block (307), and a safety groove (8) is provided on the top of the support frame (2).

8. The tool for preparing crack-confining holes in high-hardness materials according to claim 1, characterized in that: The temperature measuring mechanism (6) includes a temperature sensor (601), the rear side of which is fixedly connected to the bottom of the front left end of the support frame (2), and an alarm (602) is fixedly connected to the front left end of the support frame (2).

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