Punching device and working method for manufacturing tungsten steel mold sleeve

Abstract

The invention relates to a punching device for manufacturing a tungsten steel mold insert sleeve and a working method thereof. The device comprises a base and a mounting cover fixedly mounted on the top of the base, a support platform fixedly mounted on one side of the top of the base, a flushing mechanism for preventing the insert sleeve hole wall from being scratched is arranged on one side of the support platform, a positioning mechanism for fixing the insert sleeve is arranged between the flushing mechanism and the support platform, a punching tool for drilling a hole in the outer wall of the insert sleeve is fixedly mounted on the top of the mounting cover, and a drill bit is fixedly mounted on the output end of the punching tool; in the process of grinding oil passing through the groove, the grinding oil is used to flush the debris remaining on the surface of the drill bit, so that the debris on the surface of the drill bit during the rising process will not scratch the inner wall of the perforation, thereby ensuring the quality of the perforation, and at the same time timely cooling the drill bit, because the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and a small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

Description

Technical Field

[0001] The invention relates to the technical field of tungsten steel insert sleeve production, in particular to a punching device for manufacturing tungsten steel mold insert sleeves and a working method thereof. Background Art

[0002] Tungsten steel inserts, also known as tungsten steel inlaid sleeves, are high-performance industrial components. In order to fix the inserts on the workpiece and make them fit tightly with the workpiece, holes need to be punched. During the punching process, it is necessary to ensure that the position, size and shape of the holes meet the design requirements to ensure a good fit with the workpiece.

[0003] When drilling a hole in a tungsten steel sleeve, the existing drilling device needs to be fixed and limited to prevent it from shaking, deflecting and rotating during drilling. Due to the high hardness and low toughness of tungsten steel, the existing fixing method of the tungsten steel sleeve is likely to cause cracks on its outer wall, and even cause the sleeve to break, affecting the normal processing of the tungsten steel sleeve; at the same time, when the existing drilling device uses a drill bit to drill a hole in the tungsten steel sleeve, the drilling device is closed in time after the hole is drilled. Due to inertia, the drill bit will slowly stop rotating, and a small amount of debris will remain on the surface of the drill bit. In the process of pulling the drill bit out of the hole, the debris on the surface of the drill bit is likely to scratch the inner wall of the hole, affecting the quality of the hole. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] How to solve the problem that a small amount of debris remains on the surface of the drill bit. When the drill bit is pulled out of the hole, the debris on the surface of the drill bit easily scratches the inner wall of the hole, affecting the quality of the hole;

[0006] How to solve the problem that the existing fixing method of tungsten steel sleeve is easy to cause cracks on the outer wall, and even cause the sleeve to break, affecting the normal processing of the tungsten steel sleeve.

[0007] The objective of the present invention can be achieved through the following technical scheme: a punching device for manufacturing tungsten steel mold sleeves, comprising a base and a mounting cover fixedly mounted on the top thereof, a support platform fixedly mounted on one side of the top of the base, a flushing mechanism for preventing the sleeve hole wall from being scratched is arranged on one side of the support platform, a positioning mechanism for fixing the sleeve is arranged between the flushing mechanism and the support platform, a punching tool for drilling holes in the outer wall of the sleeve is fixedly mounted on the top of the mounting cover, the punching tool is a prior art, and a drill bit is fixedly mounted on the output end of the punching tool.

[0008] A further technical improvement of the present invention is that the flushing mechanism includes a cylinder fixedly connected to the base through a support frame, the cylinder is arranged horizontally, and a clamping plate is fixedly installed on the protruding end of the cylinder, a cylindrical block corresponding to the inner diameter of the sleeve is fixedly installed on the side of the clamping plate away from the cylinder, a groove for placing a drill bit is opened on the top of the cylindrical block, and a feeding unit for cleaning the drill bit is arranged on the mounting cover above the support frame.

[0009] A further technical improvement of the present invention is that a sewage pipe is fixedly inserted into the bottom of the groove, and the output end of the sewage pipe is fixedly connected to a first hose, and the output end of the first hose passes through the base.

[0010] A further technical improvement of the present invention is that the inner diameter of the groove is larger than the diameter of the drill bit, and the diameter of the clamping plate is larger than the diameter of the cylindrical block.

[0011] A further technical improvement of the present invention is that the feeding unit includes a liquid pump and an oil storage barrel fixedly connected to the inner wall of the mounting cover, the input end of the liquid pump is connected to the bottom of the oil storage barrel through a connecting pipe, a control valve is fixedly installed in the middle of the connecting pipe, and the oil storage barrel is filled with a sufficient amount of grinding oil.

[0012] A further technical improvement of the present invention is that an oil inlet pipe is fixedly inserted into the top of the inner side wall of the groove, the input end of the oil inlet pipe is connected with the output end of the liquid pump through a second hose, and a one-way valve is fixedly installed in the middle of the oil inlet pipe, and the opening direction of the one-way valve is the same as the direction in which the grinding oil in the second hose enters the groove; when the extended end of the cylinder is extended to the longest, at this time, the position of the groove corresponds to the position of the drill bit at the output end of the punching tool, the punching tool is turned on, so that the drill bit rotates and moves downward to punch a hole in the sleeve, so that a hole is formed on the sleeve; when the drill bit is extended into the groove, the hole generated during the punching The debris will also enter the groove. At this time, close the drilling tool, open the liquid pump and the control valve, so that the grinding oil in the oil storage barrel is injected into the groove through the second hose and the oil inlet pipe, and then discharged through the first hose. In the process of the grinding oil passing through the groove, the grinding oil is used to rinse the debris remaining on the surface of the drill bit to prevent the debris on the surface of the drill bit from scratching the inner wall of the perforation during the rising process, thereby ensuring the quality of the perforation and timely cooling the drill bit. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and a small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

[0013] A further technical improvement of the present invention is that the positioning mechanism includes a guide rod fixedly connected to the cylindrical block, the guide rod is arranged horizontally, and a movable sleeve is provided on the guide rod, one end of the movable sleeve extends out of the guide rod, and one end of the guide rod close to the cylindrical block is fixedly connected to a fixed plate, and a thrust spring is provided on the guide rod between the fixed plate and the movable sleeve, and the two ends of the thrust spring are respectively fixedly connected to the fixed plate and the movable sleeve.

[0014] The cam is fixedly mounted on the top and bottom of the fixing plate, and the fixing plate is connected to the fixing plate by a toothed connection, so that the fixing plate can be easily moved when the fixing plate is in a fixed position.

[0015] The working method of the punching device for manufacturing tungsten steel mold insert sleeves specifically includes the following steps:

[0016] Step 1: manually place the insert sleeve on the limit groove, and control the extended end of the cylinder to extend to the longest. At this time, the control valve is in a closed state, and the cylindrical block extends into the insert sleeve to provide support for the insert sleeve. The insert sleeve is pushed to move by the clamping plate, so that the clamping plate cooperates with the baffle plate to provide compression to the insert sleeve, which plays a role in fixing the insert sleeve. When punching the insert sleeve, it is prevented from deviating and shaking, which affects the accuracy of punching the insert sleeve. Since the clamping plate cooperates with the baffle plate to provide compression force on the end of the insert sleeve, the insert sleeve is prevented from breaking when being fixed, thereby ensuring the efficiency of the insert sleeve processing;

[0017] Step 2: When the extended end of the cylinder is extended to the longest, one end of the movable sleeve contacts the baffle. When the movable sleeve moves laterally, the baffle provides thrust to the movable sleeve, so that the movable sleeve slides on the guide rod. The levers on the two mounting frames provide thrust to the corresponding flip rods, driving the two flip rods to rotate, so that the two anti-sliding blocks are in close contact with the inner wall of the sleeve, preventing the sleeve from rotating during the drilling process, thereby improving its stability.

[0018] Step three: when the extended end of the cylinder is extended to the longest, the position of the groove corresponds to the position of the drill bit at the output end of the punching tool. The punching tool is turned on to make the drill bit rotate and move downward to punch the sleeve, so that the sleeve is perforated. When the drill bit is extended into the groove, the debris generated during the punching will also enter the groove. At this time, the punching tool is closed, the liquid pump and the control valve are turned on, so that the grinding oil in the oil storage barrel is injected into the groove through the second hose and the oil inlet pipe, and then discharged through the first hose. In the process of the grinding oil passing through the groove, the grinding oil is used to rinse the debris remaining on the surface of the drill bit to prevent the debris on the surface of the drill bit from scratching the inner wall of the perforation during the rising process, thereby ensuring the quality of the perforation and timely cooling the drill bit. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and a small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] When the present invention is in use, when the drill bit is inserted into the groove, the debris generated during the drilling will also enter the groove. At this time, the drilling tool is closed, the liquid pump and the control valve are turned on, so that the grinding oil in the oil storage barrel is injected into the groove through the second hose and the oil inlet pipe, and then discharged through the first hose. In the process of the grinding oil passing through the groove, the grinding oil is used to rinse the debris remaining on the surface of the drill bit, so as to avoid the debris on the surface of the drill bit scratching the inner wall of the perforation during the rising process, thereby ensuring the quality of the perforation and timely cooling the drill bit. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and the small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

[0021] When the present invention is in use, the clamping plate pushes the sleeve to move, so that the clamping plate cooperates with the baffle plate to provide extrusion to the sleeve, thereby fixing the sleeve. When the sleeve is punched, it is prevented from deviating and shaking, which affects the accuracy of punching the sleeve. Since the clamping plate cooperates with the baffle plate to provide extrusion force to the end of the sleeve, the sleeve is prevented from breaking when fixed, thereby ensuring the efficiency of sleeve processing; the baffle plate provides thrust to the moving sleeve, so that the moving sleeve slides on the guide rod, and the levers on the two mounting frames provide thrust to the corresponding flip rods, driving the two flip rods to rotate, so that the two anti-sliding blocks are tightly attached to the inner wall of the sleeve, thereby preventing the sleeve from rotating during the punching process, thereby improving its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2It is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the flushing mechanism of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the flushing mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0028] Figure 6 It is a schematic three-dimensional structure diagram of the support platform of the present invention.

[0029] In the figure: 1. oil storage barrel; 2. cylinder; 3. base; 4. mounting cover; 5. punching tool; 6. flushing mechanism; 7. support frame; 8. positioning mechanism; 9. support platform; 10. baffle; 11. limit groove; 601. connecting pipe; 602. control valve; 603. liquid pump; 604. second hose; 605. first hose; 606. clamping plate; 607. cylindrical block; 608. groove; 609. oil inlet pipe; 610. drain pipe; 801. mounting frame; 802. flip rod; 803. guide rod; 804. fixing plate; 805. thrust spring; 806. movable sleeve; 807. anti-sliding block. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 6 As shown, a punching device for manufacturing a tungsten steel mold sleeve comprises a base 3 and a mounting cover 4 fixedly mounted on the top thereof, a support platform 9 is fixedly mounted on one side of the top of the base 3, a flushing mechanism 6 for preventing the sleeve hole wall from being scratched is arranged on one side of the support platform 9, a positioning mechanism 8 for fixing the sleeve is arranged between the flushing mechanism 6 and the support platform 9, a punching tool 5 for drilling holes in the outer wall of the sleeve is fixedly mounted on the top of the mounting cover 4, the punching tool 5 is a prior art, and a drill bit is fixedly mounted on the output end of the punching tool 5.

[0032] See also Figure 2-Figure 4As shown, the above-mentioned flushing mechanism 6 includes a cylinder 2 fixedly connected to the base 3 through a support frame 7, the cylinder 2 is arranged horizontally, and a clamping plate 606 is fixedly installed on the protruding end of the cylinder 2, and a cylindrical block 607 corresponding to the inner diameter of the sleeve is fixedly installed on the side of the clamping plate 606 away from the cylinder 2, and a groove 608 for placing a drill bit is opened on the top of the cylindrical block 607, and a feeding unit for cleaning the drill bit is arranged on the mounting cover 4 above the support frame 7.

[0033] See also Figure 3 and Figure 4 As shown, a sewage pipe 610 is fixedly inserted into the bottom of the groove 608 , and the output end of the sewage pipe 610 is fixedly connected to the first hose 605 , and the output end of the first hose 605 passes through the base 3 .

[0034] See also Figure 2 and Figure 4 As shown, the inner diameter of the groove 608 is larger than the diameter of the drill bit, and the diameter of the clamping plate 606 is larger than the diameter of the cylindrical block 607 .

[0035] See also Figure 2 and Figure 3 As shown, the above-mentioned feeding unit includes a liquid pump 603 and an oil storage barrel 1 fixedly connected to the inner wall of the mounting cover 4. The input end of the liquid pump 603 is connected to the bottom of the oil storage barrel 1 through a connecting pipe 601. A control valve 602 is fixedly installed in the middle of the connecting pipe 601. The oil storage barrel 1 is filled with a sufficient amount of grinding oil.

[0036] See also Figure 3 and Figure 4As shown, an oil inlet pipe 609 is fixedly inserted into the top of the inner wall of the above-mentioned groove 608, and the input end of the oil inlet pipe 609 is connected with the output end of the liquid pump 603 through the second hose 604, and a one-way valve is fixedly installed in the middle of the oil inlet pipe 609, and the opening direction of the one-way valve is the same as the direction in which the grinding oil in the second hose 604 enters the groove 608; when the extended end of the cylinder 2 is extended to the longest, at this time, the position of the groove 608 corresponds to the position of the drill bit at the output end of the punching tool 5, the punching tool 5 is turned on, so that the drill bit rotates and moves downward to punch the sleeve, so that the sleeve is perforated; when the drill bit is extended into the groove 608, the debris generated during the punching It will also enter the groove 608. At this time, the punching tool 5 is closed, the liquid pump 603 and the control valve 602 are turned on, so that the grinding oil in the oil storage barrel 1 is injected into the groove 608 through the second hose 604 and the oil inlet pipe 609, and then discharged through the first hose 605. In the process of the grinding oil passing through the groove 608, the grinding oil is used to rinse the remaining debris on the surface of the drill bit to prevent the inner wall of the perforation from being scratched by the debris on the surface of the drill bit during the rising process, thereby ensuring the quality of the perforation and timely cooling the drill bit. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and the small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

[0037] See also Figure 2 and Figure 5 As shown, the above-mentioned positioning mechanism 8 includes a guide rod 803 fixedly connected to the cylindrical block 607, the guide rod 803 is arranged horizontally, and a movable sleeve 806 is movably sleeved on the guide rod 803, one end of the movable sleeve 806 extends out of the guide rod 803, and one end of the guide rod 803 close to the cylindrical block 607 is fixedly connected to a fixed plate 804, and a thrust spring 805 is sleeved on the guide rod 803 between the fixed plate 804 and the movable sleeve 806, and the two ends of the thrust spring 805 are respectively fixedly connected to the fixed plate 804 and the movable sleeve 806.

[0038] See also Figure 5As shown, both upper and lower ends of the fixed plate 804 are hinged with a flip rod 802, one end of the flip rod 802 is fixedly installed with an anti-sliding block 807, and the outer walls of the top and bottom of the movable sleeve 806 are fixedly connected with mounting brackets 801, and the two mounting brackets 801 are movably connected to the middle part of the corresponding flip rod 802 through the lever respectively; the sleeve is pushed to move by the clamping plate 606, so that the clamping plate 606 cooperates with the baffle plate 10 to provide compression to the sleeve, which plays a role in fixing the sleeve, and when the sleeve is punched, it is prevented from deviating and shaking, which affects the punching of the sleeve. The accuracy of the hole is ensured by the clamping plate 606 cooperating with the baffle plate 10 to provide extrusion force to the end of the sleeve, so as to avoid the sleeve from breaking when being fixed, thereby ensuring the efficiency of the sleeve processing; the baffle plate 10 provides thrust to the movable sleeve 806, so that the movable sleeve 806 slides on the guide rod 803, and the levers on the two mounting frames 801 provide thrust to the corresponding flip rods 802, driving the two flip rods 802 to rotate, so that the two anti-sliding blocks 807 are both in close contact with the inner wall of the sleeve, preventing the sleeve from rotating during the punching process, thereby improving its stability.

[0039] See also Figure 1 and Figure 6 As shown, the support platform 9 is provided with a limiting groove 11 for placing the insert sleeve, and a baffle 10 is fixedly installed at one end of the limiting groove 11 .

[0040] The working method of the punching device for manufacturing tungsten steel mold insert sleeves specifically includes the following steps:

[0041] Step 1: If Figure 1 and Figure 6 As shown, the sleeve is manually placed on the limit groove 11, and the extended end of the control cylinder 2 is extended to the longest. At this time, the control valve 602 is in a closed state, and the cylindrical block 607 extends into the sleeve to provide support for the sleeve. The sleeve is pushed to move by the clamping plate 606, so that the clamping plate 606 cooperates with the baffle plate 10 to provide compression on the sleeve, which plays a role in fixing the sleeve. When the sleeve is punched, it is prevented from deviating and shaking, which affects the accuracy of the punching of the sleeve. Since the clamping plate 606 cooperates with the baffle plate 10 to provide compression force on the end of the sleeve, the sleeve is prevented from breaking when fixed, thereby ensuring the efficiency of the sleeve processing;

[0042] Step 2: If Figure 1 , Figure 2 and Figure 5As shown, in the process of the extended end of the cylinder 2 being extended to the longest, one end of the movable sleeve 806 contacts the baffle 10. In the process of the movable sleeve 806 moving horizontally, the baffle 10 provides thrust to the movable sleeve 806, so that the movable sleeve 806 slides on the guide rod 803. The levers on the two mounting frames 801 provide thrust to the corresponding flip rods 802, driving the two flip rods 802 to rotate, so that the two anti-sliding blocks 807 are both in close contact with the inner wall of the insert sleeve, preventing the insert sleeve from rotating during the punching process, thereby improving its stability.

[0043] Step 3: If Figure 3 and Figure 4 As shown, when the extended end of the cylinder 2 is extended to the longest, at this time, the position of the groove 608 corresponds to the position of the drill bit at the output end of the punching tool 5, the punching tool 5 is turned on, so that the drill bit rotates and moves downward to punch the sleeve, so that the sleeve is perforated; when the drill bit extends into the groove 608, the debris generated during the punching will also enter the groove 608. At this time, the punching tool 5 is closed, the liquid pump 603 and the control valve 602 are turned on, so that the grinding oil in the oil storage barrel 1 is injected into the groove 608 through the second hose 604 and the oil inlet pipe 609, as shown in FIG. Figure 1 As shown, the grinding oil is then discharged through the first hose 605. In the process of the grinding oil passing through the groove 608, the grinding oil is used to rinse the remaining debris on the surface of the drill bit to prevent the inner wall of the perforation from being scratched by the debris on the surface of the drill bit during the rising process, thereby ensuring the quality of the perforation and timely cooling the drill bit. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and a small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A punching device for manufacturing a tungsten steel mold sleeve, comprising a base (3) and a mounting cover (4) fixedly mounted on the top thereof, characterized in that: A support platform (9) is fixedly mounted on one side of the top of the base (3); a flushing mechanism (6) for preventing the wall of the sleeve hole from being scratched is arranged on one side of the support platform (9); a positioning mechanism (8) for fixing the sleeve is arranged between the flushing mechanism (6) and the support platform (9); a punching tool (5) for drilling a hole in the outer wall of the sleeve is fixedly mounted on the top of the mounting cover (4); a drill bit is fixedly mounted on the output end of the punching tool (5); The flushing mechanism (6) comprises a cylinder (2) fixedly connected to a base (3) via a support frame (7); a clamping plate (606) is fixedly mounted on the protruding end of the cylinder (2); a cylindrical block (607) corresponding to the inner diameter of the sleeve is fixedly mounted on the side of the clamping plate (606) away from the cylinder (2); a groove (608) for placing a drill bit is provided on the top of the cylindrical block (607); a feeding unit for cleaning the drill bit is provided on the mounting cover (4) above the support frame (7); a sewage pipe (610) is fixedly inserted at the bottom of the groove (608); an output end of the sewage pipe (610) is fixedly connected to a first hose (605); the output end of the first hose (605) passes through the base (3), the inner diameter of the groove (608) is larger than the diameter of the drill bit, and the diameter of the clamping plate (606) is larger than the diameter of the cylindrical block (607); the feeding unit comprises a liquid pump (603) and an oil storage barrel (1) fixedly connected to the inner wall of the mounting cover (4); the input end of the liquid pump (603) is connected to the bottom of the oil storage barrel (1) through a connecting pipe (601), a control valve (602) is fixedly installed in the middle of the connecting pipe (601), an oil inlet pipe (609) is fixedly inserted into the top of the inner wall of the groove (608), the input end of the oil inlet pipe (609) is connected to the output end of the liquid pump (603) through a second hose (604), and a one-way valve is fixedly installed in the middle of the oil inlet pipe (609); The positioning mechanism (8) comprises a guide rod (803) fixedly connected to the cylindrical block (607); a movable sleeve (806) is movably sleeved on the guide rod (803); one end of the movable sleeve (806) extends out of the guide rod (803); one end of the guide rod (803) close to the cylindrical block (607) is fixedly connected to a fixed plate (804); a thrust spring (805) is sleeved on the guide rod (803) between the fixed plate (804) and the movable sleeve (806); The two ends of the thrust spring (805) are respectively fixedly connected to the fixed plate (804) and the movable sleeve (806); the upper and lower ends of the fixed plate (804) are both hingedly connected to a flip rod (802); an anti-sliding block (807) is fixedly installed at one end of the flip rod (802); the outer walls of the top and bottom of the movable sleeve (806) are both fixedly connected to mounting frames (801); the two mounting frames (801) are respectively movably connected to the middle of the corresponding flip rod (802) through a lever; The working method of the punching device specifically comprises the following steps: Step 1: manually placing the insert sleeve on the limiting groove (11), and controlling the extended end of the cylinder (2) to be extended to the longest position. At this time, the control valve (602) is in a closed state, and the cylindrical block (607) extends into the insert sleeve to provide support for the insert sleeve. The insert sleeve is pushed to move by the clamping plate (606), so that the clamping plate (606) cooperates with the baffle plate (10) to provide compression force on the insert sleeve, thereby playing a role in fixing the insert sleeve. Since the clamping plate (606) cooperates with the baffle plate (10) to provide compression force on the end of the insert sleeve, the insert sleeve is prevented from breaking when being fixed; Step 2: When the extended end of the cylinder (2) is extended to its longest length, one end of the movable sleeve (806) contacts the baffle (10). When the movable sleeve (806) moves laterally, the baffle (10) provides thrust to the movable sleeve (806), so that the movable sleeve (806) slides on the guide rod (803). The levers on the two mounting frames (801) provide thrust to the corresponding flip rods (802), driving the two flip rods (802) to rotate, so that the two anti-sliding blocks (807) are in close contact with the inner wall of the sleeve, thereby preventing the sleeve from rotating during the drilling process. Step 3: When the extended end of the cylinder (2) is extended to its longest position, the position of the groove (608) corresponds to the position of the drill bit at the output end of the punching tool (5), the punching tool (5) is turned on, so that the drill bit rotates and moves downward to punch a hole in the sleeve, so that a hole is formed on the sleeve; when the drill bit is inserted into the groove (608), the debris generated during the punching will also enter the groove (608), at this time, the punching tool (5) is closed, the liquid pump (603) and the control valve (602) are turned on, so that the grinding oil in the oil storage barrel (1) is discharged. The grinding oil is injected into the groove (608) through the second hose (604) and the oil inlet pipe (609), and then discharged through the first hose (605). In the process of the grinding oil passing through the groove (608), the grinding oil is used to clean the debris remaining on the surface of the drill bit, so as to prevent the debris on the surface of the drill bit from scratching the inner wall of the perforation during the rising process. At the same time, the drill bit is cooled in time. Since the perforation is blocked by the drill bit, the amount of grinding oil flowing out of the perforation is reduced, and the small amount of grinding oil on the inner wall of the perforation provides protection for the inner wall of the perforation.

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