An integral opening and closing structure for a direct-drive drilling drill

Abstract

This invention belongs to the field of cutting bed technology, specifically referring to an integrated opening and closing structure of a direct-drive drilling drill. It includes a frame, with the end of a cylinder mounting base rotatably connected to the frame. A locking mechanism is provided between the cylinder mounting base and the frame. A cylinder and a guide sleeve are located above the cylinder mounting base. The drilling drill assembly includes a motor mounting plate with a hollow motor. A hollow drill is connected to the lower end of the hollow shaft of the hollow motor, and a push rod extends through the hollow shaft into the hollow drill. During normal drilling operation, the locking mechanism locks the cylinder mounting base and the frame, fixing the cylinder mounting base to the frame. When replacement or maintenance is required, the locking mechanism is unlocked, and the drilling drill assembly can be opened to the side away from the frame. This invention provides sufficient operating space between the drilling drill assembly and the cutter head for replacement or maintenance, allowing for flexible operation and easy replacement of cutting blades and drill bits. Furthermore, its compact structure prevents interference with the cutter head located below the frame, making it suitable for use in automatic cutting beds.

Description

Technical fields:

[0001] This invention belongs to the field of cutting bed technology, specifically referring to an integral opening and closing structure of a direct-drive drilling drill. Background technology:

[0002] Automatic cutting machines are cutting equipment used to cut fabrics and are widely used in industries such as garment manufacturing and automotive seat manufacturing. During cutting, some fabric patterns require positioning and punching, and various sizes of holes are needed on the fabric pieces, requiring different sized drill bits, including solid 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. However, they require scrap material to be removed during drilling. For example, 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 mounted on the frame, and a movable part that can be raised and lowered. A motor is mounted on the movable part and can rise and fall with it. The motor is connected to the hollow drill through a transmission mechanism, and the motor drives the transmission mechanism to rotate the hollow drill. The lower end of the hollow drill is the drilling edge. A motor bracket is mounted on the movable part of the driver, and the motor is mounted on the motor bracket. A mounting plate is provided on the motor bracket, and the transmission mechanism is mounted 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 is driven to rotate by the motor. The driven gear meshes with the driving gear. One end of the driven gear's gear shaft is rotatably mounted on the mounting plate, and the other end is connected to the hollow drill. The driven gear's gear shaft is a hollow shaft. The motor is a pneumatic motor, and a silencer is provided on the pneumatic motor. A connecting plate is provided on the frame, and a push rod is provided at the outer end of the connecting plate. The push rod is located above the hollow drill and can extend into the hollow drill to eject waste material located inside the hollow drill. The motor driving the hollow drill and the push rod ejecting the waste material from the hollow drill are separate structures with complex structures, affecting the drilling accuracy and efficiency of the cutting bed.

[0003] The punching assembly is usually located under the cutter head (such as the cutter head suspension device of a cutting bed disclosed in Chinese invention patent CN113832693A). The punching assembly is close to the cutter head, the space is small, the operator's angle is limited, and it is inconvenient for the operator to change the cutting blade and drill bit.

[0004] Chinese utility model patent (publication number CN220762904U, application date 2023.07.27, publication date 2024.04.12) discloses an anti-clogging drilling mechanism, including a hollow shaft motor, a hollow drill bit, an L-shaped base, a linear guide rail, a cylinder, and a push rod; a tool pad is provided on the horizontal part of the L-shaped base, and a push rod fixing plate, a linear guide rail, and a cylinder are mounted on the vertical part; the hollow shaft motor is fixed to a slider on the linear guide rail through a motor fixing seat, and the cylinder is connected to the motor fixing seat through a floating joint; the hollow shaft motor and the hollow drill bit are connected 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 bit and extends out of the drill bit; the tool pad is located directly below the hollow drill bit. Although it discloses a hollow shaft motor, with the upper end of the push rod fixedly mounted on the push rod fixing plate and the lower end passing through the hollow shaft motor, hollow connecting sleeve and hollow drill bit and extending out of the drill bit, its layout is not compact enough, occupies a lot of space, and the cylinder set between the hollow drill bit and the L-shaped base will interfere with the cutter head set under the frame. Therefore, its structure cannot be directly applied to automatic cutting machines. Summary of the Invention:

[0005] The purpose of this invention is to provide an integrated opening and closing structure for a direct-drive drilling drill, which has a simple structure, high drilling accuracy and efficiency; at the same time, when replacement and maintenance are required, sufficient operating space is left between the drilling drill assembly and the cutter head, allowing for flexible operation by the operator and easy replacement of cutting blades and drill bits; and the structure is compact and will not interfere with the cutter head located below the frame, making it suitable for automatic cutting machines.

[0006] This invention is implemented as follows:

[0007] A direct-drive drilling machine with an integral opening and closing structure includes a frame. A cylinder mounting seat is provided on the side of the frame, with its end rotatably connected to the frame and the rotation shaft arranged vertically. A locking mechanism is provided between the cylinder mounting seat and the frame. A cylinder and a guide sleeve are provided above the cylinder mounting seat. A guide rod slides vertically inside the guide sleeve. The piston rod of the cylinder faces downwards, and a drilling assembly is connected to the lower ends of the piston rod and the guide rod. The drilling assembly includes a motor mounting plate connected to the lower ends of the piston rod and the guide rod. A hollow motor is mounted on the motor mounting plate. A hollow drill is connected to the lower end of the hollow shaft of the hollow motor. A guide sleeve mounting seat is provided on the guide sleeve, and a push rod is provided on the guide sleeve mounting seat to push out the waste material located in the hollow drill. The push rod passes through the hollow shaft and extends into the hollow drill. During normal drilling, the locking mechanism locks the cylinder mounting seat and the frame, and the cylinder mounting seat is fixed on the frame. When replacement or maintenance is required, the locking mechanism is unlocked, and the cylinder mounting seat can rotate around its rotation axis with the frame. The drilling 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 machine, 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 guide sleeve are mounted on the mounting part, the end of the assembly part is rotatably connected to the mounting block, the locking mechanism is provided 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, 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 machine, the mounting part is located on the side of the connecting plate away from the upper limit plate and is connected to the upper end of the connecting plate, and the motor fixing plate is located on the side of the connecting plate away from the upper limit plate.

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

[0011] In the above-mentioned overall opening and closing structure of a direct-drive drilling machine, one end of the assembly part is rotatably connected to the mounting block by a shaft screw, and the locking mechanism includes a pull pin provided at the other end of the assembly part and an insertion hole provided on the mounting block.

[0012] In the above-mentioned overall opening and closing structure of a direct-drive drilling machine, the mounting block includes a mounting fixing part fixed to the side of the frame and a mounting connecting part mounted on the mounting fixing part. The mounting connecting part includes a connecting plate mounted on the mounting fixing part and an assembly strip provided on the side of the connecting plate. One end of the assembly strip is provided with an assembly hole that mates with the shaft screw, and the other end is provided with the insertion hole.

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

[0014] In the above-mentioned overall opening and closing structure of a direct-drive drilling machine, the connecting plate is located 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 overall opening and closing structure of a direct-drive drilling machine, the connecting plate is recessed inward to the side of the assembly strip to form a protrusion, and a groove is formed on the assembly strip to avoid the protrusion.

[0016] In the above-mentioned overall opening and closing structure of a direct-drive drilling machine, an assembly block one and an assembly block two are formed protruding on the upper surface of the upper limit plate. An installation hole one for assembling a pin seat for a pull-out pin is formed through the assembly block one and the upper limit plate. An installation hole two for assembling a shaft screw is formed in the assembly block two and the upper limit plate.

[0017] In the above-mentioned overall opening and closing structure of a direct-drive drilling machine, the lower limit plate is provided with a through hole one coaxial with the mounting hole and a through hole two coaxial with the mounting hole two.

[0018] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the installation structure of the axial screw is as follows: the axial screw passes through the second through hole, the assembly hole and the mounting hole, and is screwed together, with a rotation clearance 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 machine, the installation structure of the pull pin is as follows: the pin seat is screwed to the mounting hole. When the pin of the pull pin is inserted into the hole, the assembly is fixed on the mounting block, and the locking mechanism locks the cylinder fixing seat and the frame. When the pin of the pull pin leaves the hole, the assembly can rotate around the center of the shaft screw, and the locking mechanism unlocks.

[0020] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the rotating connection structure between the cylinder mounting base and the frame can also be: one end of the frame hinged connecting rod, and the other end of the connecting rod hinged to the cylinder mounting base.

[0021] In the above-mentioned overall opening and closing structure of a direct-drive drilling drill, the rotating connection structure between the cylinder fixing seat and the frame can also be: the cylinder fixing seat is rotatably connected to the frame through 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 can also be: the locking mechanism includes a slot provided on the frame and a hook provided on the cylinder mounting seat. When the hook engages the slot, the locking mechanism locks the cylinder mounting 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, which includes a buckle body set on the frame and a hook piece set on the cylinder fixing seat. When the buckle body is fastened to 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, there are two guide sleeves, and the cylinder is located between the two guide sleeves. The guide sleeve fixing seat is connected between two adjacent guide sleeves. The guide sleeve fixing seat protrudes towards the hollow motor side and is recessed inward 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 drilling drill, the guide sleeve fixing seat is provided with a pin fixing seat, and the pin fixing seat is fixed with an installation sleeve by ball screws. The push rod is screwed into the installation sleeve, and the upper end extends out of the installation sleeve to connect to the 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. The lower end of the hollow shaft is connected to the hollow drill through a coupling, and the coupling is located inside the connecting flange.

[0027] The outstanding advantages of this invention compared to the prior art are:

[0028] 1. The cylinder mounting base of this invention is rotatably connected to the side of the frame and locked and unlocked by a locking mechanism. This provides sufficient operating space between the drilling assembly and the cutter head when replacement or maintenance is required, allowing for flexible and adaptable operation. It facilitates the replacement of cutting blades and drill bits, maintenance, and cleaning of the cutter head. Furthermore, this invention features a hollow motor, with the hollow drill directly connected to the lower end of the hollow motor's hollow shaft. A push rod extends through the hollow shaft into the hollow drill. The hollow shaft and the hollow drill are coaxially aligned, resulting in a simple structure, good stability, and uniform force distribution during operation. The invention offers high drilling accuracy and efficiency. Furthermore, the direct-drive hollow motor eliminates the need for a transmission mechanism, resulting in fewer parts. For the same power and torque, the hollow motor is smaller than a pneumatic motor, minimizing overall space requirements. The small size and light weight of the motor mounting plate allow the rotating structure between the cylinder mounting base and the frame to withstand the weight of the cylinder, guide sleeve, guide rod, and drilling assembly. Simultaneously, the cylinder and guide sleeve are both located above the cylinder mounting base on the side of the frame, resulting in a compact structure that avoids interference with the cutter head located below the frame, making it suitable for use in 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 positioned between the upper limit plate and the lower limit plate, transferring the weight borne by the cylinder fixing seat to the mounting block, effectively ensuring the load-bearing capacity of the cylinder fixing seat during drilling, and guiding the rotation of the cylinder fixing seat, facilitating the rotation of the cylinder fixing seat, and ensuring smooth opening and closing of the drilling assembly.

[0030] 3. One end of the assembly part of the present invention is rotatably connected to the mounting block by a shaft screw. The locking mechanism includes a pull pin provided at the other end of the assembly part and a socket provided 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 an installation sleeve by ball screws. The ejector pin is screwed into the installation sleeve and the upper end extends out of the installation sleeve to connect the handle, which can realize quick assembly and disassembly of the ejector pin and adjust the length of the ejector pin extending into the hollow drill. Attached image description:

[0032] Figure 1 This is a perspective view of the locking mechanism, the locking cylinder mounting base, and the frame of the present invention.

[0033] Figure 2 This is a perspective view of the drilling assembly of the present invention in the open state;

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

[0035] Figure 4 This is a perspective view of the mounting connection portion of the present invention;

[0036] Figure 5 This is a perspective view of the cylinder mounting base of the present invention;

[0037] Figure 6 This is a cross-sectional view of the frameless design of this invention.

[0038] Reference numerals: 1. Frame; 2. Cylinder mounting base; 2a. Mounting part; 2b. Assembly part; 2b1. Upper limit plate; 2b2. Lower limit plate; 2b3. Connecting plate; 2b4. Assembly block one; 2b5. Assembly block two; 3. Cylinder; 4. Guide sleeve; 5. Guide rod; 6. Motor mounting plate; 7. Hollow motor; 8. Hollow shaft; 9. Hollow drill; 10. Guide sleeve mounting base; 11. Push rod; 12. Mounting block; 12a. Mounting and fixing 12b, Mounting connection part; 12b1, Connecting plate; 12b2, Assembly strip; 13, Pull-out pin; 13a, Pin seat; 13b, Insert pin; 14, Insertion hole; 15, Assembly hole; 16, Mounting hole one; 17, Mounting hole two; 18, Protrusion; 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. Detailed implementation method:

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

[0040] A direct-drive drilling machine with an integral opening and closing structure includes a frame 1. A cylinder mounting base 2 is provided on the side of the frame 1, with its end rotatably connected to the frame 1 and its rotation axis vertically arranged. A locking mechanism is provided between the cylinder mounting base 2 and the frame 1. A cylinder 3 and a guide sleeve 4 are provided above the cylinder mounting base 2. A guide rod 5 slides vertically inside the guide sleeve 4. The piston rod of the cylinder 3 faces downwards, and a drilling assembly is connected to the lower ends of the piston rod and the guide rod 5. The drilling assembly includes a motor mounting plate 6 connected to the lower ends of the piston rod and the guide rod 5. A hollow motor 7 is provided on plate 6. The lower end of the hollow rotating shaft 8 of the hollow motor 7 is connected to a hollow drill 9. A guide sleeve fixing seat 10 is provided on guide sleeve 4. A push rod 11 is provided on guide sleeve fixing seat 10 for ejecting waste material located in the hollow drill 9. The push rod 11 passes through the hollow rotating shaft 8 and extends into the hollow drill 9. During normal drilling 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. When replacement or maintenance is required, the locking mechanism is unlocked, and the cylinder fixing seat 2 can rotate around its rotating shaft with the frame 1. The drilling assembly can be opened to the side away from the frame 1.

[0041] The working principle of this invention is as follows: Figure 1-6 As shown, during normal drilling operation, the locking mechanism locks the cylinder mounting base 2 and the frame 1, fixing the cylinder mounting base 2 to the frame 1. The hollow motor 7 controls the hollow shaft 8 to rotate, driving the hollow drill 9 to rotate. The cylinder 3 drives the motor mounting plate 6 to move downwards to drill, while the push rod 11 remains stationary. After drilling is completed, the cylinder 3 drives the motor mounting plate 6 to move upwards, causing the hollow motor 7, hollow shaft 8, and hollow drill 9 to move upwards. The push rod 11 then pushes out the waste material inside the hollow drill 9, greatly improving the drilling efficiency. The guide rod 5 and 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 or maintenance is required, the locking mechanism is unlocked, and the cylinder fixing seat 2 can rotate around its rotation axis with the frame 1. The drilling assembly opens to the side away from the frame 1, so that there is enough operating space between the drilling assembly and the cutter head. The operator can operate flexibly and adaptably, which is convenient for the operator to replace cutting blades and drill bits, perform maintenance, and clean the cutter head.

[0042] The cylinder mounting base 2 of this invention is rotatably connected to the side of the frame 1 and locked and unlocked by a locking mechanism. This provides sufficient operating space between the drilling assembly and the cutter head when replacement or maintenance is required, allowing for flexible and adaptable operation. It facilitates the replacement of cutting tools and drill bits, maintenance, and cleaning of the cutter head. Simultaneously, this invention incorporates a hollow motor 7, with the hollow drill 9 directly connected to the lower end of the hollow rotating shaft 8 of the hollow motor 7. A push rod 11 extends through the hollow rotating shaft 8 into the hollow drill 9. The hollow rotating shaft 8 and the hollow drill 9 are coaxially arranged, resulting in a simple structure, good stability, and uniform force distribution during operation of the hollow drill 9. The hole has high precision and efficiency; and the hollow motor 7 is driven directly, eliminating the need for a transmission mechanism, reducing the number of parts, and the hollow motor 7 with the same power and torque is smaller in volume than a pneumatic motor, resulting in a smaller overall space occupation. The motor mounting plate 6 used is small in size and light in weight, allowing the rotation structure between the cylinder mounting base 2 and the frame 1 to withstand the weight of the cylinder 3, guide sleeve 4, guide rod 5, and drilling assembly; at the same time, the cylinder 3 and guide sleeve 4 of this invention are both located above the cylinder mounting base 2 set on the side of the frame 1, resulting in a compact structure that will not interfere with the cutter head located below the frame 1, making it suitable for automatic cutting beds.

[0043] The structure of cylinder mounting base 2 and its mounting structure: such as Figure 1-5 As shown, the frame 1 has a mounting block 12 on its side. The cylinder mounting seat 2 includes a mounting part 2a and an assembly part 2b. The cylinder 3 and the guide sleeve 4 are mounted on the mounting part 2a. The end of the assembly part 2b is rotatably connected to the mounting block 12. The locking mechanism is set between the mounting block 12 and the assembly part 2b. The assembly part 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 mounting 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, transferring the weight borne by the cylinder mounting seat 2 to the mounting block 12. This effectively ensures the load-bearing capacity of the cylinder mounting seat 2 during drilling and guides the rotation of the cylinder mounting seat 2, facilitating the rotation of the cylinder mounting seat 2 and ensuring smooth opening and closing of the drilling assembly.

[0044] The installation location of the mounting section 2a is as follows: Figure 1 , 2 As shown in Figure 5, the mounting part 2a is located 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 located on the side of the connecting plate 2b3 away from the upper limit plate 2b1. The structure is compact and occupies little space.

[0045] To ensure a secure and reliable connection between the mounting part 2a and the assembly part 2b, and to reduce assembly steps, the mounting part 2a and the assembly part 2b are an integral structure.

[0046] The rotating structure of assembly part 2b and the structure of the locking mechanism: as follows Figure 1-5 As shown, one end of the assembly part 2b is rotatably connected to the mounting block 12 by a axial screw. The locking mechanism includes a pull pin 13 at the other end of the assembly part 2b and a socket 14 on the mounting block 12. The structure is robust, reliable, simple, and easy to install, unlock, and lock.

[0047] The structure of mounting block 12 is as follows: Figure 3 , 4 As shown, the mounting block 12 includes a mounting fixing part 12a fixed to the side of the frame 1 and a mounting connecting part 12b mounted on the mounting fixing part 12a. The mounting connecting part 12b includes a connecting plate 12b1 mounted on the mounting fixing part 12a and an assembly strip 12b2 disposed on the side of the connecting plate 12b1. One end of the assembly strip 12b2 is provided with an assembly hole 15 that mates with a shaft screw, and the other end is provided with the insertion hole 14. This facilitates processing and assembly.

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

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

[0050] In order to avoid the motor mounting plate 6 and to ensure the strength of the connecting plate 2b3, the connecting plate 2b3 is recessed into the side of the mounting strip 12b2 to form a protrusion 18, and the mounting strip 12b2 is formed with a groove 19 to avoid the protrusion 18.

[0051] Mounting structure of pull pin 13 and axial screw: as follows Figure 1 , 2 As shown in Figure 5, an assembly block 1 2b4 and an assembly block 2b5 are formed protruding on the upper surface of the upper limit plate 2b1. An installation hole 16 for assembling the pin seat 13a of the pull pin 13 is formed through the assembly block 1 2b4 and the upper limit plate 2b1. An installation hole 27 for assembling the shaft screw is formed in the assembly block 2b5 and the upper limit plate 2b1.

[0052] In order to facilitate the processing of mounting holes 16 and 17, and to prevent the lower limit plate 2b2 from affecting the insertion of pin 13b to the bottom, which would cause pin 13b to fall out easily and thus unlock the locking mechanism, the lower limit plate 2b2 is provided with a through hole 26 coaxial with mounting hole 16 and a through hole 27 coaxial with mounting hole 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 the second mounting hole 17 and is screwed together. A rotation clearance 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 mounting hole 16. When the pin 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 cylinder fixing seat 2 and the frame 1. When the pin 13b of the pull pin 13 leaves the insertion hole 14, the assembly part 2b can rotate around the center of the shaft screw, and the locking mechanism is unlocked.

[0055] To better guide the vertical movement of the motor mounting 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 towards the hollow motor 7 and is recessed inward on the side away from the hollow motor 7 to avoid the cylinder 3. The structure is compact and effectively saves space.

[0056] To enable quick assembly and disassembly of the top rod 11, and to adapt to scenarios requiring frequent replacement of the hollow drill 9, thereby greatly improving cutting efficiency, such as... Figure 6 As shown, the guide sleeve fixing seat 10 is provided with a pin fixing seat 20. The mounting sleeve 22 is locked and fixed to the pin fixing seat 20 by a ball screw 21. The push rod 11 is screwed into the mounting sleeve 22, and its upper end extends out of the mounting sleeve 22 to connect to the handle 23. By rotating the handle 23, the position of the push rod 11 relative to the mounting sleeve 22 can be adjusted, and the length of the push rod 11 extending into the hollow drill 9 can be adjusted.

[0057] The specific installation structure of the hollow motor 7 is 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. 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 set inside the connecting flange 24.

[0058] The above embodiments are merely one of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes made in accordance with the shape, structure and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An integral opening and closing structure for a direct-drive drilling drill, comprising a frame (1), characterized in that: The frame (1) is provided with a cylinder mounting seat (2) on its side. The end of the cylinder mounting seat (2) is rotatably connected to the frame (1), and the rotation shaft is arranged vertically. A locking mechanism is provided between the cylinder mounting seat (2) and the frame (1). A cylinder (3) and a guide sleeve (4) are provided above the cylinder mounting seat (2). A guide rod (5) is slidably arranged vertically inside the guide sleeve (4). The piston rod of the cylinder (3) faces downward, and a drilling assembly is connected to the lower end of the piston rod and the guide rod (5). The drilling assembly includes a motor fixed to the lower end of the piston rod and the guide rod (5). The plate (6) is equipped with a hollow motor (7). The hollow shaft (8) of the hollow motor (7) is connected to a hollow drill (9) at its lower end. The guide sleeve (4) is equipped with a guide sleeve fixing seat (10). The guide sleeve fixing seat (10) is equipped with a push rod (11) for ejecting the waste material located in the hollow drill (9). The push rod (11) passes through the hollow shaft (8) and extends into the hollow drill (9). When 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). When replacement or maintenance is required, When the locking mechanism is unlocked, the cylinder mounting seat (2) can rotate around its rotation axis with the frame (1), and the drilling assembly can open to the side away from the frame (1). The frame (1) has a mounting block (12) on its side. The cylinder mounting seat (2) includes a mounting part (2a) and an assembly part (2b). The cylinder (3) and the guide sleeve (4) are mounted on the mounting part (2a). The end of the assembly part (2b) is rotatably connected to the mounting block (12). The locking mechanism is located between the mounting block (12) and the assembly part (2b). The assembly part (2b) contains... 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 mounting seat (2) is fixed on the frame (1), the mounting block (12) is positioned between the upper limit plate (2b1) and the lower limit plate (2b2). The mounting part (2a) is located 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 mounting plate (6) is located on the side of the connecting plate (2b3) away from the upper limit plate (2b1).

2. The integral opening and closing structure of a direct-drive drilling drill according to claim 1, characterized in that: One end of the assembly part (2b) is rotatably connected to the mounting block (12) by a shaft screw. The locking mechanism includes a pull pin (13) provided at the other end of the assembly part (2b) and a socket (14) provided on the mounting block (12).

3. The integral opening and closing structure of a direct-drive drilling drill according to claim 2, characterized in that: The mounting block (12) includes a mounting fixing part (12a) fixed to the side of the frame (1) and a mounting connecting part (12b) mounted on the mounting fixing part (12a). The mounting connecting part (12b) includes a connecting plate (12b1) mounted on the mounting fixing part (12a) and an assembly strip (12b2) provided on the side of the connecting plate (12b1). One end of the assembly strip (12b2) is provided with an assembly hole (15) that mates with the shaft screw, and the other end is provided with the insertion hole (14).

4. The integral opening and closing structure of a direct-drive drilling drill according to claim 3, characterized in that: The connecting plate (12b1) is disposed below the mounting and fixing part (12a), the upper surface of the mounting strip (12b2) is flush with the upper surface of the mounting and fixing part (12a), and the lower surface of the mounting strip (12b2) is flush with the lower surface of the connecting plate (12b1).

5. The integral opening and closing structure of a direct-drive drilling drill according to claim 3, characterized in that: The connecting plate (2b3) is recessed into the side of the assembly strip (12b2) to form a protrusion (18), and a groove (19) is formed on the assembly strip (12b2) to avoid the protrusion (18).

6. The integral opening and closing structure of a direct-drive drilling drill according to claim 2, characterized in that: Assembly block one (2b4) and assembly block two (2b5) are formed protruding on the upper surface of the upper limit plate (2b1). Assembly block one (2b4) and upper limit plate (2b1) are formed through mounting holes one (16) for mounting pin seat (13a) of pull pin (13). Assembly block two (2b5) and upper limit plate (2b1) are formed through mounting holes two (17) for mounting shaft screw.

7. The integral opening and closing structure of a direct-drive drilling drill according to claim 1, characterized in that: 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 towards the hollow motor (7) and is recessed on the side away from the hollow motor (7) to avoid the cylinder (3).

8. The integral opening and closing structure of a direct-drive drilling drill according to claim 7, characterized in that: The guide sleeve fixing seat (10) is provided with a pin fixing seat (20), and the pin fixing seat (20) is fixed with an mounting sleeve (22) by a ball screw (21). The push rod (11) is screwed into the mounting sleeve (22), and its upper end extends out of the mounting sleeve (22) to connect to the handle (23).

9. The integral opening and closing structure of a direct-drive drilling drill 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) through a coupling (25), and the coupling (25) is located inside the connecting flange (24).

Images