Overall opening and closing structure of punching drill

Abstract

The utility model belongs to the technical field of cutting beds, and particularly relates to an integral opening and closing structure of a punching drill, which comprises a rack, a punching drill fixing seat is arranged on the side edge of the rack, the end part of the punching drill fixing seat is rotatably connected onto the rack, a rotating shaft is vertically arranged, a locking mechanism is arranged between the punching drill fixing seat and the rack, and the punching drill fixing seat is fixedly connected with the rack. A punching drill assembly is arranged on the punching drill fixing seat, during normal punching work, the punching drill fixing seat and the rack are locked by the locking mechanism, and the punching drill fixing seat is fixed to the rack; when replacement and maintenance are needed, the locking mechanism is unlocked, the punching drill fixing base can rotate around a rotating shaft of the punching drill fixing base and the rack, and the punching drill assembly can be opened towards the side away from the rack. When replacement and maintenance are needed, enough operation space is reserved between the punching drill assembly and the cutter head, operation of an operator is flexible, and the operator can replace a cut-off knife and a drill bit conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cutting bed, and particularly relates to a whole opening and closing structure of punching drill. BACKGROUND

[0002] Automatic cutting bed is a cutting device for cutting fabric, and is widely applied to the industries of garment manufacturing and automobile seat manufacturing. When cutting, some cutting piece patterns need to be positioned and punched, and various specifications and sizes of holes are needed on the cutting piece fabric, and different sizes of drill bits are needed.

[0003] The punching drill assembly structure of the cutting bed is like a hollow drill mechanism for an automatic cutting bed disclosed in Chinese invention patent (publication number CN107471309A, application date 2017.08.19, publication date 2017.12.15), which comprises a rack, a driver is arranged on the rack, the driver comprises a movable part that can be lifted, a motor is arranged on the movable part and can be lifted with the movable part, the motor is connected with the hollow drill through a transmission mechanism, the motor drives the transmission mechanism to act and then drives the hollow drill to rotate, and the lower end of the hollow drill is a drill cutting edge. A motor bracket is arranged on the movable part of the driver, and the motor is arranged on the motor bracket. An installation plate is arranged on the motor bracket, and the transmission mechanism is arranged on the installation plate. The transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with the rotating shaft of the motor and is driven to rotate by the motor, the driven gear is in meshing transmission with the driving gear, one end of the gear shaft of the driven gear is rotatably arranged on the installation plate, and the other end is connected with the hollow drill, and the gear shaft of the driven gear is a hollow shaft. One end of the gear shaft of the driven gear is rotatably arranged on the installation plate, and the other end is connected with the hollow drill, and the gear shaft of the driven gear is a hollow shaft. The motor is a pneumatic motor, and a silencer is arranged on the pneumatic motor. A connecting plate is arranged on the rack, an ejector rod is arranged at the outer end of the connecting plate, the ejector rod is located above the hollow drill, the ejector rod can extend into the hollow drill, and is used for ejecting waste located in the hollow drill.

[0004] The rack of the punching drill assembly is usually provided with a cutter disc (such as a cutter disc suspension device of a cutting bed disclosed in Chinese invention patent CN113832693A), the punching drill assembly is close to the cutter disc, the space is small, the angle of the operator is limited, and it is inconvenient for the operator to replace the cutting knife and the drill bit. SUMMARY

[0005] The utility model aims at providing a whole opening and closing structure of punching drill, which leaves enough operation space between the punching drill assembly and the cutter disc when the punching drill assembly needs to be replaced and maintained, the operator can operate flexibly, and it is convenient for the operator to replace the cutting knife and the drill bit.

[0006] The utility model is implemented as follows:

[0007] The whole opening and closing structure of a punch drill comprises a frame, the side of the frame is provided with a punch drill fixing seat, the end of the punch drill fixing seat is rotatably connected to the frame, the rotating shaft is vertically arranged, the punch drill fixing seat and the frame are provided with a locking mechanism, the punch drill fixing seat is provided with a punch drill assembly, when the normal punching work is performed, the locking mechanism locks the punch drill fixing seat and the frame, the punch drill fixing seat is fixed to the frame; when the replacement and maintenance are needed, the locking mechanism is unlocked, the punch drill fixing seat can rotate around the rotating shaft of the frame, and the punch drill assembly can be opened to the side away from the frame.

[0008] In the whole opening and closing structure of a punch drill, the side of the frame is provided with a mounting block, the punch drill fixing seat comprises a mounting part and an assembly part, the punch drill assembly is mounted on the mounting part, the end of the assembly part is rotatably connected to the mounting block, the locking mechanism is arranged between the mounting block and the assembly part, the assembly part comprises an upper limiting plate, a lower limiting plate and a connecting plate connecting the upper limiting plate and the lower limiting plate, when the punch drill fixing seat is fixed to the frame, the mounting block is limited between the upper limiting plate and the lower limiting plate.

[0009] In the whole opening and closing structure of a punch drill, one end of the assembly part is rotatably connected to the mounting block through a shaft position screw, the locking mechanism comprises a pull pin arranged at the other end of the assembly part and a jack arranged on the mounting block.

[0010] In the whole opening and closing structure of a punch drill, the mounting block comprises a mounting fixed part fixed to the side of the frame and a mounting connecting part mounted on the mounting fixed part, the mounting connecting part comprises a connecting plate mounted on the mounting fixed part and an assembly strip arranged on the side of the connecting plate, one end of the assembly strip is provided with an assembly hole matched with the shaft position screw, and the other end is provided with the jack.

[0011] In the whole opening and closing structure of a punch drill, the connecting plate is arranged below the mounting fixed part, the upper surface of the assembly strip is flush with the upper surface of the mounting fixed part, and the lower surface of the assembly strip is flush with the lower surface of the connecting plate.

[0012] In the whole opening and closing structure of a punch drill, the connecting plate is recessed to a convex block on one side of the assembly strip, and the assembly strip is formed with a groove avoiding the convex block.

[0013] In the whole opening and closing structure of a punch drill, the mounting part and the assembly part are integrated, the mounting fixed part and the frame are integrated, and the connecting plate and the assembly strip are integrated.

[0014] In the whole opening and closing structure of a punch drill, the connecting plate is mounted on the mounting fixed part through a screw.

[0015] In the overall opening and closing structure of the punch drill, the upper surface of the upper limiting plate is convexly formed with assembly block one and assembly block two, the assembly block one and the upper limiting plate are formed with a mounting hole one for assembling a pin seat of the pull pin, and the assembly block two and the upper limiting plate are formed with a mounting hole two for assembling a shaft position screw.

[0016] In the overall opening and closing structure of the punch drill, the lower limiting plate is provided with a through hole one coaxial with the mounting hole one and a through hole two coaxial with the mounting hole two.

[0017] In the overall opening and closing structure of the punch drill, the mounting structure of the shaft position screw: the shaft position screw passes through the through hole two, the assembly hole and the mounting hole two are screwed, and a rotating gap is left between the shaft position screw and the through hole two and the assembly hole.

[0018] In the overall opening and closing structure of the punch drill, the mounting structure of the pull pin: the pin seat is screwed with the mounting hole one, when the plug of the pull pin is inserted into the insertion hole, the assembly part is fixed on the mounting block, and the locking mechanism locks the punch drill fixing seat and the rack; when the plug of the pull pin is away from the insertion hole, the assembly part can rotate around the center of the shaft position screw, and the locking mechanism is unlocked.

[0019] In the overall opening and closing structure of the punch drill, the rotating connection structure of the punch drill fixing seat and the rack can also be that one end of the rack is hinged to the connecting rod, and the other end of the connecting rod is hinged to the punch drill fixing seat.

[0020] In the overall opening and closing structure of the punch drill, the rotating connection structure of the punch drill fixing seat and the rack can also be that the punch drill fixing seat is rotatably connected to the rack through the flat head hole pin.

[0021] In the overall opening and closing structure of the punch drill, the locking mechanism can also be that the locking mechanism includes a clamping groove arranged on the rack and a clamping hook arranged on the punch drill fixing seat, when the clamping hook clamps the clamping groove, the locking mechanism locks the punch drill fixing seat and the rack.

[0022] In the overall opening and closing structure of the punch drill, the locking mechanism can also be that the locking mechanism is a duckbill buckle, the duckbill buckle includes a buckle body arranged on the rack and a hook piece arranged on the punch drill fixing seat, when the buckle body is buckled on the hook piece, the locking mechanism locks the punch drill fixing seat and the rack.

[0023] In the overall opening and closing structure of the punch drill, the mounting part is arranged on the side of the connecting plate away from the upper limiting plate and connected to the upper end of the connecting plate.

[0024] In the overall opening and closing structure of the punching drill, the punching drill assembly comprises a cylinder and a guide sleeve arranged on the punching drill fixing base, a guide rod is vertically slidably arranged in the guide sleeve, a motor fixing plate is connected to the piston rod of the cylinder, a hollow motor is arranged on the motor fixing plate, a hollow drill is connected to the lower end of the hollow rotating shaft of the hollow motor, a guide sleeve fixing base is arranged on the guide sleeve, and a ejecting rod for ejecting waste in the hollow drill is arranged on the guide sleeve fixing base and extends into the hollow drill through the hollow rotating shaft.

[0025] In the overall opening and closing structure of the punching drill, the hollow motor is arranged above the motor fixing plate, and a hollow connecting flange is arranged between the hollow motor and the motor fixing plate, the lower end of the hollow rotating shaft is connected to the hollow drill through a shaft coupling, and the shaft coupling is arranged in the connecting flange.

[0026] In the overall opening and closing structure of the punching drill, the motor fixing plate is arranged on the side of the connecting plate away from the upper limiting plate.

[0027] In the overall opening and closing structure of the punching drill, the cylinder and the guide sleeve are both arranged above the punching drill fixing base, the piston rod of the cylinder is arranged downward, and the lower end of the piston rod and the guide rod are connected to the motor fixing plate.

[0028] In the overall opening and closing structure of the punching drill, the guide sleeve is arranged in two, the cylinder is arranged between the two guide sleeves, the guide sleeve fixing base is connected between the two adjacent guide sleeves, the guide sleeve fixing base protrudes towards the side of the hollow motor and is recessed on the side away from the hollow motor to avoid the cylinder.

[0029] In the overall opening and closing structure of the punching drill, the guide sleeve fixing base is provided with a thimble fixing base, the thimble fixing base is fixedly connected with a mounting sleeve through a wave bead screw, the ejecting rod is screwed in the mounting sleeve and has an upper end extending out of the mounting sleeve and connected with a handle.

[0030] Compared with the prior art, the utility model has the advantages of:

[0031] 1、The end of the punching drill fixing base is rotatably connected to the side of the rack and is locked and unlocked through the locking mechanism, so that when replacement and maintenance are needed, enough operation space is left between the punching drill assembly and the cutter disc, the operator can operate flexibly, the adaptability is high, the operator can conveniently replace the cutting knife and the drill bit, maintenance and cleaning of the cutter disc are facilitated, and the like.

[0032] 2. The assembly part of the utility model comprises upper limit board, lower limit board and connecting plate connecting upper limit board and lower limit board, when the punch drill fixed base is fixed on the rack, the installation block is limited between the upper limit board and the lower limit board, the weight borne by the punch drill fixed base is transmitted to the installation block, the bearing capacity of the punch drill fixed base is effectively guaranteed when the punch drill fixed base works, and the rotation of the punch drill fixed base is guided, the punch drill assembly opens and closes smoothly.

[0033] 3. One end of the assembly part of the utility model is rotatably connected on the installation block through the shaft position screw, the locking mechanism comprises the pull-out pin arranged at the other end of the assembly part and the jack plug arranged on the installation block, the structure is firm and reliable, and simple, and is convenient for installation, unlocking and locking. DRAWINGS:

[0034] Figure 1 It is the perspective view of the locking mechanism of the utility model locking the punch drill fixed base and the rack.

[0035] Figure 2 It is the perspective view of the punch drill assembly in the open state of the utility model.

[0036] Figure 3 It is the perspective view of the rack and the installation block of the utility model.

[0037] Figure 4 It is the perspective view of the installation connecting part of the utility model.

[0038] Figure 5 It is the perspective view of the punch drill fixed base of the utility model.

[0039] Figure 6 It is the sectional view of the utility model without rack.

[0040] Signs: 1, rack; 2, punch drill fixed base; 2a, installation part; 2b, assembly part; 2b1, upper limit board; 2b2, lower limit board; 2b3, connecting plate; 2b4, assembly block one; 2b5, assembly block two; 3, air cylinder; 4, guide sleeve; 5, guide rod; 6, motor fixed plate; 7, hollow motor; 8, hollow rotating shaft; 9, hollow drill; 10, guide sleeve fixed base; 11, jacking rod; 12, installation block; 12a, installation fixed part; 12b, installation connecting part; 12b1, connecting plate; 12b2, assembly strip; 13, pull-out pin; 13a, pin seat; 13b, plug pin; 14, jack plug; 15, assembly hole; 16, mounting hole one; 17, mounting hole two; 18, protruding block; 19, recess; 20, thimble fixed base; 21, wave bead screw; 22, mounting sleeve; 23, handle; 24, connecting flange; 25, shaft coupling; 26, through hole one; 27, through hole two. DETAILED DESCRIPTION:

[0041] The utility model is further described below with specific embodiments, referring to Figure 1 -6:

[0042] A whole opening and closing structure of a punching drill, comprising a rack 1, a punching drill fixing base 2 is arranged on the side of the rack 1, the end of the punching drill fixing base 2 is rotatably connected to the rack 1, and the rotating shaft is arranged vertically, a locking mechanism is arranged between the punching drill fixing base 2 and the rack 1, a punching drill assembly is arranged on the punching drill fixing base 2, when normal punching work is performed, the locking mechanism locks the punching drill fixing base 2 and the rack 1, and the punching drill fixing base 2 is fixed to the rack 1; when replacement and maintenance are needed, the locking mechanism is unlocked, the punching drill fixing base 2 can rotate around the rotating shaft of the punching drill fixing base 2 and the rack 1, and the punching drill assembly can be opened to the side away from the rack 1.

[0043] The working principle of the utility model is as follows: Figures 1-6 When normal punching work is performed, the locking mechanism locks the punching drill fixing base 2 and the rack 1, and the punching drill fixing base 2 is fixed to the rack 1, and the punching drill assembly performs punching work; when replacement and maintenance are needed, the locking mechanism is unlocked, the punching drill fixing base 2 can rotate around the rotating shaft of the punching drill fixing base 2 and the rack 1, and the punching drill assembly is opened to the side away from the rack 1, so that enough operation space is left between the punching drill assembly and the cutter head, the operator can operate flexibly, the adaptability is high, and the operator can conveniently replace the cutting knife, the drill bit, maintain and clean the cutter head.

[0044] The end of the punching drill fixing base 2 is rotatably connected to the side of the rack 1, and is locked and unlocked through the locking mechanism, so that enough operation space is left between the punching drill assembly and the cutter head when replacement and maintenance are needed, the operator can operate flexibly, the adaptability is high, and the operator can conveniently replace the cutting knife, the drill bit, maintain and clean the cutter head.

[0045] The structure and mounting structure of the punching drill fixing base 2 are as follows: Figures 1-5 The side of the rack 1 is provided with a mounting block 12, the punching drill fixing base 2 comprises a mounting portion 2a and an assembly portion 2b, the punching drill assembly is mounted on the mounting portion 2a, the end of the assembly portion 2b is rotatably connected to the mounting block 12, the locking mechanism is arranged between the mounting block 12 and the assembly portion 2b, the assembly portion 2b comprises an upper limiting plate 2b1, a lower limiting plate 2b2 and a connecting plate 2b3 connecting the upper limiting plate 2b1 and the lower limiting plate 2b2, when the punching drill fixing base 2 is fixed to the rack 1, the mounting block 12 is limited between the upper limiting plate 2b1 and the lower limiting plate 2b2, the weight borne by the punching drill fixing base 2 is transmitted to the mounting block 12, the bearing capacity of the punching drill fixing base 2 during punching work is effectively ensured, the rotation of the punching drill fixing base 2 is guided, the punching drill fixing base 2 is facilitated to rotate, and the opening and closing of the punching drill assembly are smooth.

[0046] The rotating structure of the assembly part 2b and the structure of the locking mechanism: Figures 1-5 As shown, one end of the assembly portion 2b is rotatably connected to the mounting block 12 via an axial screw. The locking mechanism includes a pull pin 13 provided at the other end of the assembly portion 2b and a socket 14 provided on the mounting block 12. The structure is strong, reliable, and simple, making it easy to install, unlock, and lock.

[0047] The structure of the mounting block 12 is as follows: Figure 3 、 4 As shown, the mounting block 12 includes a mounting portion 12a fixed to the side of the frame 1 and a mounting connection portion 12b mounted on the mounting portion 12a. The mounting connection portion 12b includes a connecting plate 12b1 mounted on the mounting portion 12a and an assembly bar 12b2 provided on the side of the connecting plate 12b1. The assembly bar 12b2 has an assembly hole 15 at one end for engaging the axial screw and the insertion hole 14 at the other end, facilitating processing and assembly.

[0048] Furthermore, the connecting plate 12b1 is arranged below the mounting and fixing portion 12a, the upper surface of the assembly bar 12b2 is flush with the upper surface of the mounting and fixing portion 12a, and the lower surface of the assembly bar 12b2 is flush with the lower surface of the connecting plate 12b1.

[0049] In order to avoid the motor fixing plate 6 and ensure the strength of the connecting plate 2b3, the connecting plate 2b3 is concave toward one side of the assembly strip 12b2 to form a protrusion 18, and a groove 19 for avoiding the protrusion 18 is formed on the assembly strip 12b2.

[0050] In order to ensure a firm and reliable connection between the parts and reduce assembly steps, the mounting portion 2a and the assembly portion 2b are an integrated structure, the mounting fixing portion 12a and the frame 1 are an integrated structure, and the connecting plate 12b1 and the assembly bar 12b2 are an integrated structure.

[0051] The installation structure of the connecting plate 12b1 and the installation fixing portion 12a: The connecting plate 12b1 is installed on the installation fixing portion 12a by screws.

[0052] The installation structure of the pull pin 13 and the axial screw: Figure 1 、 2 As shown in Figures 5 and 6, an assembly block 2b4 and an assembly block 2b5 are formed on the upper surface of the upper limit positioning plate 2b1. A mounting hole 16 for assembling the pin seat 13a of the pull pin 13 is formed through the assembly block 2b4 and the upper limit positioning plate 2b1. A mounting hole 2 17 for assembling the axial screw is formed in the assembly block 2b5 and the upper limit positioning plate 2b1.

[0053] In order to facilitate the installation of the first mounting hole 16 and the second mounting hole 17, and to avoid the lower limit plate 2b2 affecting the insertion of the bolt 13b into the bottom, thereby causing the bolt 13b to easily fall out, resulting in the unlocking of the locking mechanism, the lower limit plate 2b2 is provided with a through hole 1 coaxial with the first mounting hole 16 and a through hole 2 coaxial with the second mounting hole 17.

[0054] The specific installation structure of the shaft screw: the shaft screw is screwed through the through hole 2, the assembly hole 15, and the second mounting hole 17, and a rotating gap is left between the shaft screw and the through hole 2 and the assembly hole 15.

[0055] The specific installation structure of the pull pin 13: the pin seat 13a is screwed with the first mounting hole 16, when the bolt 13b of the pull pin 13 is inserted into the insertion hole 14, the assembly part 2b is fixed on the mounting block 12, and the locking mechanism locks the punch drill fixed seat 2 and the rack 1; when the bolt 13b of the pull pin 13 is away from the insertion hole 14, the assembly part 2b can rotate around the center of the shaft screw, and the locking mechanism is unlocked.

[0056] The setting position of the installation part 2a: as shown in Figure 1 、 2 5, the installation part 2a is arranged on the side of the connecting plate 2b3 away from the upper limit plate 2b1, and is connected to the upper end of the connecting plate 2b3, leaving space for the installation of the motor fixed plate 6, so that the overall structure is compact and occupies small space.

[0057] The specific structure of the punch drill assembly: as shown in Figure 1 、 2 6, the punch drill assembly includes a cylinder 3 arranged on the punch drill fixed seat 2 and a guide sleeve 4, a guide rod 5 is vertically arranged in the guide sleeve 4, a motor fixed plate 6 is connected to the piston rod of the cylinder 3, a hollow motor 7 is arranged on the motor fixed plate 6, a hollow rotating shaft 8 of the hollow motor 7 is connected to a hollow drill 9, a guide sleeve fixed seat 10 is arranged on the guide sleeve 4, a ejector rod 11 for ejecting waste in the hollow drill 9 is arranged on the guide sleeve fixed seat 10, and the ejector rod 11 extends into the hollow drill 9 through the hollow rotating shaft 8. During normal punching work, the hollow motor 7 controls the rotation of the hollow rotating shaft 8, driving the hollow drill 9 to rotate, and the cylinder 3 drives the motor fixed plate 6 to move downward for punching, at this time the ejector rod 11 is stationary; when the punching is completed, the cylinder 3 drives the motor fixed plate 6 to move upward, driving the hollow motor 7, the hollow rotating shaft 8 and the hollow drill 9 to move upward, and the ejector rod 11 ejects the waste in the hollow drill 9, greatly improving the punching efficiency, and the guide rod 5 and the guide sleeve 4 guide the vertical sliding of the motor fixed plate 6, so that the motor fixed plate 6 can move vertically smoothly.

[0058] The utility model discloses hollow motor 7 is provided, hollow drill 9 is connected directly in the hollow rotating shaft 8 lower extreme of hollow motor 7, and the top rod 11 passes through the hollow rotating shaft 8 and extends into the hollow drill 9, and the hollow rotating shaft 8 is arranged coaxially with the hollow drill 9, and the structure is simple, and the stability is good, and the hollow drill 9 is stressed evenly when working, and the punching precision and efficiency are high, and the hollow motor 7 directly drives the mode, and need not transmission mechanism, and the part is few, and the volume of hollow motor 7 is smaller than the volume of pneumatic motor with same power and torque, and the overall space occupation is small, and the motor fixing plate 6 used is small in volume and light in weight, so that the rotating structure between the punching drill fixing seat 2 and the frame 1 can bear the weight of the air cylinder 3, the guide sleeve 4, the guide rod 5 and the punching drill assembly.

[0059] The specific installation structure of the hollow motor 7 is shown as 1, 2 and 6, the hollow motor 7 is located above the motor fixing plate 6, a hollow connecting flange 24 is arranged between the hollow motor 7 and the motor fixing plate 6, the lower end of the hollow rotating shaft 8 is connected with the hollow drill 9 through a shaft coupling 25, and the shaft coupling 25 is arranged in the connecting flange 24.

[0060] Further, the motor fixing plate 6 is arranged on the side of the connecting plate 2b3 away from the upper limiting plate 2b1.

[0061] Further, the air cylinder 3 and the guide sleeve 4 are both arranged above the punching drill fixing seat 2, the piston rod of the air cylinder 3 is arranged downward, and the piston rod and the lower end of the guide rod 5 are connected with the motor fixing plate 6. The air cylinder 3 and the guide sleeve 4 of the utility model are both arranged above the punching drill fixing seat 2 arranged on the side of the frame 1, the structure is compact, and will not interfere with the cutter head located below the frame 1, and is suitable for use in an automatic cutting bed.

[0062] In order to better guide the vertical movement of the motor fixing plate 6, the guide sleeve 4 is provided with two, the air cylinder 3 is located between the two guide sleeves 4, the adjacent two guide sleeves 4 are connected with the guide sleeve fixing seat 10, the guide sleeve fixing seat 10 protrudes to one side of the hollow motor 7, and is recessed on the side away from the hollow motor 7 to avoid the air cylinder 3, the structure is compact, and the occupied space is effectively saved.

[0063] In order to quickly disassemble and assemble the top rod 11, the scene that the hollow drill 9 needs to be frequently replaced can be adapted, so that the cutting efficiency is greatly improved, as shown in Figure 6 The guide sleeve fixing seat 10 is provided with a thimble fixing seat 20, the thimble fixing seat 20 is locked and fixed with a mounting sleeve 22 through a wave bead screw 21, the top rod 11 is screwed in the mounting sleeve 22, and the upper end of the top rod 11 extends out of the mounting sleeve 22 to connect with a handle 23. The position of the top rod 11 relative to the mounting sleeve 22 can be adjusted by rotating the handle 23, and the length of the top rod 11 extending into the hollow drill 9 can be adjusted.

[0064] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application, so that: all equivalent changes made according to the shape, structure, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A unitary opening and closing structure for a perforating drill comprising a frame (1) characterised in that: The side of the rack (1) is provided with a punch drill fixing seat (2), the end of the punch drill fixing seat (2) is rotatably connected to the rack (1), and the rotation axis is vertically arranged; a locking mechanism is arranged between the punch drill fixing seat (2) and the rack (1); the punch drill fixing seat (2) is provided with a punch drill assembly; when normal punching work is performed, the locking mechanism locks the punch drill fixing seat (2) and the rack (1), and the punch drill fixing seat (2) is fixed to the rack (1); when replacement and maintenance are required, the locking mechanism is unlocked, the punch drill fixing seat (2) can rotate around the rotation axis of the punch drill fixing seat (2) and the rack (1), and the punch drill assembly can be opened away from the rack (1).

2. A unitary opening and closing structure for a perforating drill according to claim 1, wherein: The side of the rack (1) is provided with a mounting block (12), the punch drill fixing seat (2) comprises a mounting portion (2a) and an assembly portion (2b), the punch drill assembly is mounted on the mounting portion (2a), the end of the assembly portion (2b) is rotatably connected to the mounting block (12), the locking mechanism is arranged between the mounting block (12) and the assembly portion (2b), the assembly portion (2b) comprises an upper limiting plate (2b1), a lower limiting plate (2b2) and a connecting plate (2b3) connecting the upper limiting plate (2b1) and the lower limiting plate (2b2), when the punch drill fixing seat (2) is fixed to the rack (1), the mounting block (12) is limited between the upper limiting plate (2b1) and the lower limiting plate (2b2).

3. A unitary opening and closing structure for a perforating drill according to claim 2, wherein: One end of the assembly portion (2b) is rotatably connected to the mounting block (12) through an axial screw, the locking mechanism comprises a pulling pin (13) arranged at the other end of the assembly portion (2b) and a jack (14) arranged on the mounting block (12).

4. A unitary opening and closing structure for a perforating drill according to claim 3, wherein: The mounting block (12) comprises a mounting fixing portion (12a) fixed to the side of the rack (1) and a mounting connecting portion (12b) mounted on the mounting fixing portion (12a), the mounting connecting portion (12b) comprises a connecting plate (12b1) mounted on the mounting fixing portion (12a) and an assembly strip (12b2) arranged on the side of the connecting plate (12b1), one end of the assembly strip (12b2) is provided with an assembly hole (15) matched with the axial screw, and the other end is provided with the jack (14).

5. A unitary opening and closing structure for a perforating drill according to claim 4, wherein: The connecting plate (12b1) is arranged below the mounting fixing portion (12a), the upper surface of the assembly strip (12b2) is flush with the upper surface of the mounting fixing portion (12a), and the lower surface of the assembly strip (12b2) is flush with the lower surface of the connecting plate (12b1).

6. A unitary opening and closing structure for a perforating drill according to claim 4, wherein: The connecting plate (2b3) is recessed to form a protrusion (18) to one side of the assembly strip (12b2), and the assembly strip (12b2) is formed with a groove (19) avoiding the protrusion (18).

7. The integral opening and closing structure of a perforating drill according to claim 4, wherein: The mounting portion (2a) and the assembly portion (2b) are in an integrated structure, the mounting fixing portion (12a) and the rack (1) are in an integrated structure, and the connecting plate (12b1) and the assembly strip (12b2) are in an integrated structure.

8. The integral opening and closing structure of a perforating drill according to claim 3, wherein: The upper surface of the upper limit plate (2b1) is convexly formed with an assembly block 1 (2b4) and an assembly block 2 (2b5); the assembly block 1 (2b4) and the upper limit plate (2b1) are penetrated to form a mounting hole 1 (16) for assembling a pin seat (13a) of a pull pin (13); the assembly block 2 (2b5) and the upper limit plate (2b1) are formed with a mounting hole 2 (17) for assembling an axial screw.

9. A unitary opening and closing structure for a perforating drill according to claim 8, wherein: The lower limit plate (2b2) ​​is provided with a through hole 1 (26) coaxial with the mounting hole 1 (16) and a through hole 2 (27) coaxial with the mounting hole 2 (17).

10. The integral opening and closing structure of a perforating drill according to claim 2, wherein: The mounting portion (2a) is arranged on a side of the connecting plate (2b3) away from the upper limit plate (2b1) and is connected to the upper end of the connecting plate (2b3).

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