Integral opening and closing structure of direct-drive type punching drill

Abstract

The invention belongs to the technical field of cutting beds, and particularly relates to an integral opening and closing structure of a direct-drive type punching drill, which comprises a rack, the end part of an air cylinder fixing seat is rotatably connected to the rack, a locking mechanism is arranged between the air cylinder fixing seat and the rack, an air cylinder and a guide sleeve are arranged above the air cylinder fixing seat, and a punching drill assembly comprises a motor fixing plate, a hollow motor is arranged on the motor fixing plate, a hollow drill is connected to the lower end of a hollow rotating shaft of the hollow motor, the ejector rod penetrates through the hollow rotating shaft and extends into the hollow drill, and during normal punching work, the locking mechanism locks the air cylinder fixing base and the rack, and the air cylinder fixing base is fixed to the rack; when replacement and maintenance are needed, the locking mechanism is unlocked, 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 cutterhead, an operator can operate flexibly, and the operator can replace a cut-off knife and a drill bit conveniently; and the structure is compact, interference with a cutterhead located below the rack is avoided, and the device is suitable for the automatic cutting bed.

Description

Technical field:

[0001] The invention belongs to the technical field of cutting machines, and in particular relates to an integral opening and closing structure of a direct-drive punch drill. Background technology:

[0002] Automatic cutting machines are cutting equipment used to cut fabrics, and are widely used in industries such as clothing manufacturing and automobile seat manufacturing. When cutting, some cutting patterns need to be positioned and punched, and holes of various specifications and sizes are required on the cutting fabrics, which require drill bits of different sizes, including solid drills and hollow drills. Hollow drills are widely used because they are suitable for drilling large holes and sticky fabrics, and have a fast drilling speed, but they need to push waste when drilling. For example, a Chinese invention patent (publication number CN107471309A, application date 2017.08.19, publication date 2017.12.15) discloses a hollow drill mechanism for an automatic cutting machine, including a frame, a driver is arranged on the frame, the driver includes a movable part that can be raised and lowered, a motor is arranged on the movable part and can be raised and lowered with the movable part, the motor is connected to the hollow drill through a transmission mechanism, the motor drives the transmission mechanism to move and then drives the hollow drill to rotate, and the lower end of the hollow drill is a drilling edge. A motor bracket is arranged on the movable part of the driver, and the motor is arranged on the motor bracket. The motor bracket is provided with a mounting plate, and the transmission mechanism is provided on the mounting plate. The transmission mechanism includes a driving gear and a driven gear, the driving gear is connected to the rotating shaft of the motor and driven to rotate by the motor, the driven gear is meshed with the driving gear for transmission, one end of the gear shaft of the driven gear is rotatably provided on the mounting plate, and the other end is connected to 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 provided on the mounting plate, and the other end is connected to the hollow drill, and the gear shaft of the driven gear is a hollow shaft. The motor is a pneumatic motor, and a muffler is provided on the pneumatic motor. A connecting plate is provided on the frame, and a push rod is provided on the outer end of the connecting plate, and the push rod is located above the hollow drill, and the push rod can extend into the hollow drill to eject the waste in the hollow drill. The motor that drives the hollow drill to rotate and the ejector pin that ejects the waste from the hollow drill are separate structures and have a complex structure, which affects the punching accuracy and punching efficiency of the cutting machine.

[0003] A cutter disc is usually provided under the frame of the punch drill assembly (such as a cutter disc suspension device for a cutting table disclosed in Chinese invention patent CN113832693A). The punch drill assembly is close to the cutter disc, the space is small, the operator's angle is limited, and it is inconvenient for the operator to replace the cutter and drill bit.

[0004] The Chinese utility model patent (publication number CN220762904U, application date 2023.07.27, publication date 2024.04.12) discloses an anti-blocking knife drilling mechanism, including a hollow shaft motor, a hollow drill, an L-shaped base, a linear guide, a cylinder and a push rod; a knife pad is provided on the transverse part of the L-shaped base, and a push rod fixing plate, a linear guide and a cylinder are installed on the longitudinal part. The hollow shaft motor is fixed to the slider on the linear guide through a motor fixing seat, and the cylinder is connected to the motor fixing seat through a floating joint; the hollow shaft motor is connected to the hollow drill through a hollow connecting sleeve, the upper end of the push rod is fixedly mounted on the push rod fixing plate, and the lower end passes through the hollow shaft motor, the hollow connecting sleeve and the hollow drill and extends out of the drill; the knife pad is located directly below the hollow drill. Although it discloses a hollow shaft motor, the upper end of the push rod is fixedly mounted on the push rod fixing plate, and the lower end passes through the hollow shaft motor, the hollow connecting sleeve and the hollow drill and extends out of the drill, its layout is not compact enough and occupies a large space. In addition, the cylinder arranged between the hollow drill and the L-shaped base will interfere with the knife disc arranged under the frame, so its structure cannot be directly applied to automatic cutting machines. Summary of the invention:

[0005] The purpose of the present invention is to provide an overall opening and closing structure of a direct-drive punch drill, which has a simple structure and high punching accuracy and efficiency. At the same time, when replacement and maintenance are required, sufficient operating space is left between the punch drill assembly and the cutter disc, which is flexible for the operator to operate and convenient for the operator to replace the cutting knife and drill bit. The structure is compact and will not interfere with the cutter disc located under the frame, so it is suitable for automatic cutting machines.

[0006] The present invention is achieved in that:

[0007] The invention discloses an integral opening and closing structure of a direct-drive punching drill, comprising a frame, a cylinder fixing seat is arranged on the side of the frame, the end of the cylinder fixing seat is rotatably connected to the frame, and the rotating shaft is arranged vertically, a locking mechanism is arranged between the cylinder fixing seat and the frame, a cylinder and a guide sleeve are arranged above the cylinder fixing seat, a guide rod is arranged vertically in the guide sleeve, the piston rod of the cylinder faces downward, and a punching drill assembly is connected to the lower ends of the piston rod and the guide rod, the punching drill assembly comprises a motor fixing plate connected to the lower ends of the piston rod and the guide rod, and the A hollow motor is provided on the motor fixing plate, a hollow drill is connected to the lower end of the hollow shaft of the hollow motor, a guide sleeve fixing seat is provided on the guide sleeve, a push rod for ejecting waste in the hollow drill is provided on the guide sleeve fixing seat, the push rod passes through the hollow shaft and extends into the hollow drill. When the drilling work is normal, the locking mechanism locks the cylinder fixing seat and the frame, and the cylinder fixing seat is fixed on the frame; when replacement and maintenance are required, the locking mechanism is unlocked, the cylinder fixing seat can rotate around the rotating axis between it and the frame, and the drilling drill assembly can be opened to the side away from the frame.

[0008] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, a mounting block is provided on the side of the frame, the cylinder fixing seat includes a mounting part and an assembly part, the cylinder and the guide sleeve are installed 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 includes an upper limit plate, a lower limit plate, and a connecting plate connecting the upper limit plate and the lower limit plate, and when the cylinder fixing seat is fixed on the frame, the mounting block is limited between the upper limit plate and the lower limit plate.

[0009] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the mounting portion is arranged on the side of the connecting plate away from the upper limit plate and connected to the upper end of the connecting plate, and the motor fixing plate is arranged on the side of the connecting plate away from the upper limit plate.

[0010] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the mounting portion and the assembly portion are an integrated structure.

[0011] In the above-mentioned integral opening and closing structure of a direct-drive drilling drill, one end of the assembly part is rotatably connected to the mounting block through an axial screw, and the locking mechanism includes a pull pin arranged at the other end of the assembly part and a socket arranged on the mounting block.

[0012] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the mounting block includes a mounting fixing portion fixed to the side of the frame and a mounting connecting portion installed on the mounting fixing portion, the mounting connecting portion includes a connecting plate installed on the mounting fixing portion and an assembly strip arranged on the side of the connecting plate, one end of the assembly strip is provided with an assembly hole that cooperates with the axial screw, and the other end is provided with the socket.

[0013] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the mounting and fixing part and the frame are an integrated structure, the connecting plate is mounted on the mounting and fixing part by screws, and the connecting plate and the assembly strip are an integrated structure.

[0014] In the above-mentioned integral opening and closing structure of a direct-drive punch, the connecting plate is arranged below the mounting and fixing part, the upper surface of the assembly strip is flush with the upper surface of the mounting and fixing part, and the lower surface of the assembly strip is flush with the lower surface of the connecting plate.

[0015] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the connecting plate is concave toward one side of the assembly bar to form a convex block, and a groove for avoiding the convex block is formed on the assembly bar.

[0016] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, an assembly block 1 and an assembly block 2 are convexly formed on the upper surface of the upper limit plate, and an installation hole 1 for assembling a pin seat of a pull pin is formed through the assembly block 1 and the upper limit plate, and an installation hole 2 for assembling an axial screw is formed in the assembly block 2 and the upper limit plate.

[0017] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the lower limit plate is provided with a through hole 1 coaxial with the mounting hole and a through hole 2 coaxial with the mounting hole 2.

[0018] In the above-mentioned overall opening and closing structure of a direct-drive punch, the installation structure of the axial screw is as follows: the axial screw passes through the second through hole, the assembly hole and the second mounting hole and is screwed together, and a rotational clearance is left between the axial screw and the second through hole and the assembly hole.

[0019] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the installation structure of the pull pin: the pin seat is screwed to the installation hole, when the pull pin is inserted into the socket, the assembly part is fixed on the mounting block, and the locking mechanism locks the cylinder fixing seat and the frame; when the pull pin leaves the socket, the assembly part can rotate around the center of the axial screw, and the locking mechanism is unlocked.

[0020] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the rotation connection structure between the cylinder fixing seat and the frame may also be: the frame is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the cylinder fixing seat.

[0021] In the above-mentioned integral opening and closing structure of a direct-drive punch drill, the rotational connection structure between the cylinder fixing seat and the frame may also be: the cylinder fixing seat is rotationally connected to the frame via a flat-head pin with a hole.

[0022] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the locking mechanism may also be: the locking mechanism includes a slot arranged on the frame and a hook arranged on the cylinder fixing seat, and when the hook is caught in the slot, the locking mechanism locks the cylinder fixing seat and the frame.

[0023] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the locking mechanism can also be: the locking mechanism is a duckbill buckle, the duckbill buckle includes a buckle body arranged on the frame and a hook piece arranged on the cylinder fixing seat, when the buckle body is buckled on the hook piece, the locking mechanism locks the cylinder fixing seat and the frame.

[0024] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, two guide sleeves are provided, the cylinder is located between the two guide sleeves, and the guide sleeve fixing seat is connected between two adjacent guide sleeves. The guide sleeve fixing seat protrudes toward one side of the hollow motor and is recessed on the side away from the hollow motor to avoid the cylinder.

[0025] In the above-mentioned overall opening and closing structure of a direct-drive punch drill, a thimble fixing seat is provided on the guide sleeve fixing seat, a mounting sleeve is fixed on the thimble fixing seat by a ball screw, the thimble fixing seat is screwed in the mounting sleeve, and the upper end extends out of the mounting sleeve connecting handle.

[0026] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the hollow motor is located above the motor fixing plate, and a hollow connecting flange is provided between the hollow motor and the motor fixing plate, and the lower end of the hollow rotating shaft is connected to the hollow drill through a coupling, and the coupling is arranged in the connecting flange.

[0027] The outstanding advantages of the present invention compared with the prior art are:

[0028] 1. The end of the cylinder fixing seat of the present invention is rotatably connected to the side of the frame, and is locked and unlocked by a locking mechanism, so that sufficient operating space is left between the punch drill assembly and the cutter disc when replacement and maintenance are required. The operator is flexible in operation and has strong adaptability, which is convenient for the operator to replace the cutter and drill bit, perform maintenance, and clean the cutter disc. At the same time, the present invention is provided with a hollow motor, and the hollow drill is directly connected to the lower end of the hollow shaft of the hollow motor. The push rod passes through the hollow shaft and extends into the hollow drill. The hollow shaft and the hollow drill are coaxially arranged, with a simple structure and good stability. The hollow drill is subjected to uniform force when working. The punching accuracy and efficiency are high; the hollow motor direct drive mode does not require a transmission mechanism and has fewer parts. The hollow motor with the same power and torque is smaller than the pneumatic motor, and the overall space occupied is small. The motor fixing plate used is small in size and light in weight, so that the rotating structure between the cylinder fixing seat and the frame can bear the weight of the cylinder, the guide sleeve, the guide rod and the punching drill assembly; at the same time, the cylinder and the guide sleeve of the present invention are both located above the cylinder fixing seat arranged on the side of the frame, and the structure is compact, and will not interfere with the knife disc located below the frame, and is suitable for automatic cutting machines;

[0029] 2. The assembly part of the present invention includes an upper limit plate, a lower limit plate, and a connecting plate connecting the upper limit plate and the lower limit plate. When the cylinder fixing seat is fixed on the frame, the mounting block is limited between the upper limit plate and the lower limit plate, and the weight borne by the cylinder fixing seat is transferred to the mounting block, which effectively ensures the load-bearing capacity of the cylinder fixing seat during the drilling work, and guides the rotation of the cylinder fixing seat, which is convenient for the rotation of the cylinder fixing seat and the opening and closing of the drilling assembly are smooth;

[0030] 3. One end of the assembly part of the present invention is rotatably connected to the mounting block through an axial screw, and the locking mechanism includes a pull pin arranged at the other end of the assembly part and a socket arranged on the mounting block. The structure is firm and reliable, simple, and easy to install, unlock, and lock;

[0031] 4. The ejector pin fixing seat of the present invention is fixed with a mounting sleeve by means of a ball screw, the ejector rod is screwed into the mounting sleeve, and the upper end thereof extends out of the mounting sleeve connecting handle, so that the ejector rod can be quickly disassembled and assembled, and the length of the ejector rod extending into the hollow drill can be adjusted. Description of the drawings:

[0032] Figure 1 It is a three-dimensional diagram of the locking mechanism of the present invention locking the cylinder fixing seat and the frame;

[0033] Figure 2 is a three-dimensional diagram of the punch drill assembly of the present invention in an open state;

[0034] Figure 3 is a perspective view of the frame and mounting block of the present invention;

[0035] Figure 4 is a three-dimensional diagram of the mounting connection portion of the present invention;

[0036] Figure 5 is a three-dimensional diagram of a cylinder fixing seat of the present invention;

[0037] Figure 6 It is a cross-sectional view of the present invention without a frame.

[0038] Figure numerals: 1, frame; 2, cylinder fixing seat; 2a, installation part; 2b, assembly part; 2b1, upper limit plate; 2b2, lower limit plate; 2b3, connecting plate; 2b4, assembly block 1; 2b5, assembly block 2; 3, cylinder; 4, guide sleeve; 5, guide rod; 6, motor fixing plate; 7, hollow motor; 8, hollow shaft; 9, hollow drill; 10, guide sleeve fixing seat; 11, push rod; 12, mounting block; 12a, installation and fixing 12b, installation connection part; 12b1, connecting plate; 12b2, assembly strip; 13, pull pin; 13a, pin seat; 13b, latch; 14, socket; 15, assembly hole; 16, mounting hole one; 17, mounting hole two; 18, bump; 19, groove; 20, ejector pin fixing seat; 21, ball screw; 22, mounting sleeve; 23, handle; 24, connecting flange; 25, coupling; 26, through hole one; 27, through hole two. Specific implementation method:

[0039] The present invention is further described below with reference to specific embodiments. Figure 1 —6:

[0040] The overall opening and closing structure of a direct-drive punching drill comprises a frame 1, a cylinder fixing seat 2 is arranged on the side of the frame 1, the end of the cylinder fixing seat 2 is rotatably connected to the frame 1, and the rotating shaft is arranged vertically, a locking mechanism is arranged between the cylinder fixing seat 2 and the frame 1, a cylinder 3 and a guide sleeve 4 are arranged above the cylinder fixing seat 2, a guide rod 5 is vertically slidably arranged in the guide sleeve 4, the piston rod of the cylinder 3 faces downward, and the lower ends of the piston rod and the guide rod 5 are connected to a punching drill assembly, the punching drill assembly comprises a motor fixing plate 6 connected to the lower ends of the piston rod and the guide rod 5, the motor fixing plate 6 A hollow motor 7 is provided on the plate 6, and a hollow drill 9 is connected to the lower end of a hollow rotating shaft 8 of the hollow motor 7. A guide sleeve fixing seat 10 is provided on the guide sleeve 4, and a push rod 11 for ejecting waste in the hollow drill 9 is provided on the guide sleeve fixing seat 10. The push rod 11 passes through the hollow rotating shaft 8 and extends into the hollow drill 9. When the drilling work is normal, the locking mechanism locks the cylinder fixing seat 2 and the frame 1, and the cylinder fixing seat 2 is fixed on the frame 1; when replacement and maintenance are required, the locking mechanism is unlocked, the cylinder fixing seat 2 can rotate around the rotating axis between it and the frame 1, and the drilling assembly can be opened to the side away from the frame 1.

[0041] The working principle of the present invention is as follows: Figure 1-6 As shown, when the drilling is in normal operation, the locking mechanism locks the cylinder fixing seat 2 and the frame 1, the cylinder fixing seat 2 is fixed on the frame 1, the hollow motor 7 controls the hollow shaft 8 to rotate, drives the hollow drill 9 to rotate, and the cylinder 3 drives the motor fixing plate 6 to move down to drill holes, and the push rod 11 does not move at this time; when the drilling is completed, the cylinder 3 drives the motor fixing plate 6 to move up, drives the hollow motor 7, the hollow shaft 8 and the hollow drill 9 to move up, and the push rod 11 pushes out the waste in the hollow drill 9, which greatly improves the drilling efficiency. The guide rod 5 and the guide sleeve 4 guide the vertical sliding of the motor fixing plate 6, so that the motor fixing plate 6 can move vertically smoothly; when replacement and maintenance are required, the locking mechanism is unlocked, the cylinder fixing seat 2 can rotate around the rotation axis between it and the frame 1, and the punch drill assembly is opened to the side away from the frame 1, so that sufficient operating space is left between the punch drill assembly and the cutter disc, the operator has flexible operation and strong adaptability, and it is convenient for the operator to replace the cutter and drill bit, perform maintenance, and clean the cutter disc.

[0042] The end of the cylinder fixing seat 2 of the present invention is rotatably connected to the side of the frame 1, and is locked and unlocked by a locking mechanism, so that sufficient operating space is left between the punch drill assembly and the cutter disc when replacement and maintenance are required. The operator is flexible in operation and has strong adaptability, which is convenient for the operator to replace the cutter and drill bit, perform maintenance, and clean the cutter disc. At the same time, the present invention provides a hollow motor 7, and the hollow drill 9 is directly connected to the lower end of the hollow shaft 8 of the hollow motor 7. The push rod 11 passes through the hollow shaft 8 and extends into the hollow drill 9. The hollow shaft 8 and the hollow drill 9 are coaxially arranged, with a simple structure and good stability. The hollow drill 9 is evenly stressed when working, and the punching The hole accuracy and efficiency are high; and the hollow motor 7 is directly driven, no transmission mechanism is required, and there are fewer parts. The hollow motor 7 of the same power and torque is smaller than the pneumatic motor, and the overall space occupied is small. The motor fixing plate 6 used is small in size and light in weight, so that the rotating structure between the cylinder fixing seat 2 and the frame 1 can withstand the weight of the cylinder 3, guide sleeve 4, guide rod 5 and punch drill assembly; at the same time, the cylinder 3 and guide sleeve 4 of the present invention are both located above the cylinder fixing seat 2 arranged on the side of the frame 1, with a compact structure, and will not interfere with the knife disc located below the frame 1, and is suitable for automatic cutting machines.

[0043] The structure and installation structure of the cylinder fixing seat 2: Figure 1-5 As shown, a mounting block 12 is provided on the side of the frame 1, the cylinder fixing seat 2 includes a mounting portion 2a and an assembly portion 2b, the cylinder 3 and the guide sleeve 4 are 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 includes an upper limit plate 2b1, a lower limit plate 2b2, and a connecting plate 2b3 connecting the upper limit plate 2b1 and the lower limit plate 2b2, when the cylinder fixing seat 2 is fixed on the frame 1, the mounting block 12 is limited between the upper limit plate 2b1 and the lower limit plate 2b2, the weight borne by the cylinder fixing seat 2 is transferred to the mounting block 12, the load-bearing capacity of the cylinder fixing seat 2 during the punching operation is effectively guaranteed, and the rotation of the cylinder fixing seat 2 is guided, so that the cylinder fixing seat 2 is convenient for rotation, and the punching drill assembly opens and closes smoothly.

[0044] The installation position of the mounting portion 2a is as follows: Figure 1 , 2 As shown in FIG. 5 , the mounting portion 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. The motor fixing plate 6 is arranged on the side of the connecting plate 2b3 away from the upper limit plate 2b1. The structure is compact and occupies little space.

[0045] In order to ensure a firm and reliable connection between the mounting portion 2a and the assembly portion 2b and to reduce assembly steps, the mounting portion 2a and the assembly portion 2b are an integrated structure.

[0046] The rotating structure of the assembly part 2b and the structure of the locking mechanism are as follows: Figure 1-5 As shown, one end of the assembly part 2b is rotatably connected to the mounting block 12 through an axial screw, and the locking mechanism includes a pull pin 13 arranged at the other end of the assembly part 2b and a socket 14 arranged on the mounting block 12. The structure is firm, reliable, simple, and 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 fixing portion 12a fixed to the side of the frame 1 and a mounting connecting portion 12b installed on the mounting fixing portion 12a, the mounting connecting portion 12b includes a connecting plate 12b1 installed 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 plug hole 14. It is convenient for processing and assembly.

[0048] Furthermore, the mounting and fixing portion 12a and the frame 1 are an integrated structure, the connecting plate 12b1 is mounted on the mounting and fixing portion 12a by screws, and the connecting plate 12b1 and the assembly strip 12b2 are an integrated structure.

[0049] Furthermore, the connecting plate 12b1 is arranged below the mounting and fixing portion 12a, the upper surface of the assembly strip 12b2 is flush with the upper surface of the mounting and fixing portion 12a, and the lower surface of the assembly strip 12b2 is flush with the lower surface of the connecting plate 12b1.

[0050] 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 convex block 18, and a groove 19 for avoiding the convex block 18 is formed on the assembly strip 12b2.

[0051] The installation structure of the pull pin 13 and the axial screw: Figure 1 , 2 As shown in Figure 5, an assembly block 2b4 and an assembly block 2b5 are convexly formed on the upper surface of the upper limit positioning plate 2b1, and an installation 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, and a mounting hole 217 for assembling the axial screw is formed in the assembly block 2b5 and the upper limit positioning plate 2b1.

[0052] In order to facilitate the processing of mounting hole 16 and mounting hole 2 17, and to prevent the lower limit plate 2b2 from affecting the insertion of the latch 13b to the bottom, thereby causing the latch 13b to fall out easily, thereby causing the locking mechanism to be unlocked, the lower limit plate 2b2 is provided with a through hole 1 26 coaxial with the mounting hole 16 and a through hole 27 coaxial with the mounting hole 2 17.

[0053] The specific installation structure of the axial screw: the axial screw passes through the second through hole 27, the assembly hole 15 and is screwed to the second mounting hole 17, and a rotation gap is left between the axial screw and the second through hole 27 and the assembly hole 15.

[0054] The specific installation structure of the pull pin 13: the pin seat 13a is screwed to the installation hole 16. When the pin 13b of the pull pin 13 is inserted into the socket 14, the assembly part 2b is fixed on the installation block 12, and the locking mechanism locks the cylinder fixing seat 2 and the frame 1; when the pin 13b of the pull pin 13 leaves the socket 14, the assembly part 2b can rotate around the center of the axial screw, and the locking mechanism is unlocked.

[0055] In order to better guide the vertical movement of the motor fixing plate 6, two guide sleeves 4 are provided, and the cylinder 3 is located between the two guide sleeves 4. The guide sleeve fixing seat 10 is connected between the two adjacent guide sleeves 4. The guide sleeve fixing seat 10 protrudes toward one side of the hollow motor 7 and is recessed on the side away from the hollow motor 7 to avoid the cylinder 3. The structure is compact and effectively saves space.

[0056] In order to quickly disassemble and assemble the ejector rod 11, it can adapt to the scene where the hollow drill 9 needs to be frequently replaced, thereby greatly improving the cutting efficiency. Figure 6 As shown, the guide sleeve fixing seat 10 is provided with a thimble fixing seat 20, and a mounting sleeve 22 is locked and fixed on the thimble fixing seat 20 by a ball screw 21. The thimble fixing seat 20 is screwed into the mounting sleeve 22, and the upper end of the thimble 11 extends out of the mounting sleeve 22 to connect the handle 23. By rotating the handle 23 to adjust the position of the thimble 11 relative to the mounting sleeve 22, the length of the thimble 11 extending into the hollow drill 9 can be adjusted.

[0057] Specific installation structure of the hollow motor 7: As shown in 1, 2, and 6, the hollow motor 7 is located above the motor fixing plate 6, and a hollow connecting flange 24 is provided between the hollow motor 7 and the motor fixing plate 6, and the lower end of the hollow rotating shaft 8 is connected to the hollow drill 9 through a coupling 25, and the coupling 25 is arranged in the connecting flange 24.

[0058] The above embodiment is only one of the preferred embodiments of the present invention, and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integral opening and closing structure of a direct-drive drilling machine, comprising a frame (1), characterized in that: A cylinder fixing seat (2) is provided on the side of the frame (1), the end of the cylinder fixing seat (2) is rotatably connected to the frame (1), and the rotating shaft is arranged in the vertical direction. A locking mechanism is provided between the cylinder fixing seat (2) and the frame (1). A cylinder (3) and a guide sleeve (4) are provided above the cylinder fixing seat (2). A guide rod (5) is slidably provided in the guide sleeve (4) in the vertical direction. The piston rod of the cylinder (3) faces downward, and the lower ends of the piston rod and the guide rod (5) are connected to a punching drill assembly. The punching drill assembly includes a motor fixing plate (6) connected to the lower ends of the piston rod and the guide rod (5). A hollow motor (7) is provided on the motor fixing plate (6). A hollow drill (9) is connected to the lower end of the hollow shaft (8) of the hollow motor (7); a guide sleeve fixing seat (10) is provided on the guide sleeve (4); a push rod (11) for ejecting waste material in the hollow drill (9) is provided on the guide sleeve fixing seat (10); the push rod (11) passes through the hollow shaft (8) and extends into the hollow drill (9); when the drilling operation is normal, the locking mechanism locks the cylinder fixing seat (2) and the frame (1), and the cylinder fixing seat (2) is fixed on the frame (1); when replacement and maintenance are required, the locking mechanism is unlocked, the cylinder fixing seat (2) can rotate around the rotation axis between it and the frame (1), and the drilling assembly can be opened to the side away from the frame (1).

2. The integral opening and closing structure of a direct-drive drilling machine according to claim 1, characterized in that: A mounting block (12) is provided on the side of the frame (1); the cylinder fixing seat (2) comprises a mounting portion (2a) and an assembly portion (2b); the cylinder (3) and the guide sleeve (4) are 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 limit plate (2b1), a lower limit plate (2b2), and a connecting plate (2b3) connecting the upper limit plate (2b1) and the lower limit plate (2b2); when the cylinder fixing seat (2) is fixed on the frame (1), the mounting block (12) is limited between the upper limit plate (2b1) and the lower limit plate (2b2).

3. The integral opening and closing structure of a direct-drive drilling machine according to claim 2, characterized in that: One end of the assembly part (2b) is rotatably connected to the mounting block (12) via an axial screw, and the locking mechanism comprises a pull pin (13) arranged at the other end of the assembly part (2b) and a socket (14) arranged on the mounting block (12).

4. The integral opening and closing structure of a direct-drive drilling machine according to claim 3, characterized in that: The mounting block (12) comprises a mounting fixing portion (12a) fixed to the side of the frame (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 an axial screw, and the other end is provided with the plug hole (14).

5. The integral opening and closing structure of a direct-drive drilling machine according to claim 4, characterized in that: The connecting plate (12b1) is arranged below the mounting and fixing portion (12a), the upper surface of the assembly strip (12b2) is flush with the upper surface of the mounting and fixing portion (12a), and the lower surface of the assembly strip (12b2) is flush with the lower surface of the connecting plate (12b1).

6. The integral opening and closing structure of a direct-drive drilling machine according to claim 4, characterized in that: The connecting plate (2b3) is concave toward one side of the assembly strip (12b2) to form a convex block (18), and a groove (19) for avoiding the convex block (18) is formed on the assembly strip (12b2).

7. The integral opening and closing structure of a direct-drive drilling machine according to claim 3, characterized in that: The upper surface of the upper limit positioning plate (2b1) is convexly formed with an assembly block 1 (2b4) and an assembly block 2 (2b5); an installation hole 1 (16) for assembling a pin seat (13a) of a pull pin (13) is formed through the assembly block 1 (2b4) and the upper limit positioning plate (2b1); and an installation hole 2 (17) for assembling an axial screw is formed in the assembly block 2 (2b5) and the upper limit positioning plate (2b1).

8. The integral opening and closing structure of a direct-drive drilling machine according to claim 1, characterized in that: Two guide sleeves (4) are provided, the cylinder (3) is located between the two guide sleeves (4), the guide sleeve fixing seat (10) is connected between two adjacent guide sleeves (4), and the guide sleeve fixing seat (10) protrudes toward one side of the hollow motor (7) and is concave on the side away from the hollow motor (7) to avoid the cylinder (3).

9. The integral opening and closing structure of a direct-drive drilling machine according to claim 8, characterized in that: The guide sleeve fixing seat (10) is provided with an ejector fixing seat (20), a mounting sleeve (22) is locked and fixed on the ejector fixing seat (20) by means of a ball screw (21), the ejector rod (11) is screwed into the mounting sleeve (22), and the upper end thereof extends out of the mounting sleeve (22) to connect with a handle (23).

10. The integral opening and closing structure of a direct-drive drilling machine according to claim 1, characterized in that: The hollow motor (7) is located above the motor fixing plate (6), and a hollow connecting flange (24) is provided between the hollow motor (7) and the motor fixing plate (6). The lower end of the hollow rotating shaft (8) is connected to the hollow drill (9) via a coupling (25), and the coupling (25) is arranged in the connecting flange (24).

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