A marine plank hole-drilling machine with anti-jamming function

Abstract

This invention discloses a marine plank hole-drilling machine with anti-jamming function, belonging to the technical field of plank hole-drilling machines. It includes a machine base, a lifting device, a drive motor, a positioning device, and a hole-drilling device. The invention uses a first electromagnet to drive a piston plate upwards, pressurizing the upper chamber and creating a negative pressure in the lower chamber. On one hand, the pressurized gas in the upper chamber is forced into the locking chamber, pushing the slider outwards and forming a friction clamp with the inner wall of the locking head, achieving reliable locking of the fixed ring and the following ring, thereby stably maintaining the drill rod spacing and preventing hole diameter deviation caused by the hole-drilling reaction force. On the other hand, the negative pressure in the lower chamber is transmitted to the expansion chamber through a passage, keeping it in a continuous negative pressure state, thus stably adsorbing and positioning the sliding plate above the drill rod groove, suppressing relative movement during the hole-drilling process. An electric telescopic rod drives the following ring, causing multiple drill rods to synchronously expand or retract around the axis, achieving rapid adjustment and automatic matching of the hole diameter.

Description

Technical Field

[0001] This invention relates to the field of wood board punching machine technology, specifically a marine wood board punching machine with anti-jamming function. Background Technology

[0002] Hole-drilling machines are commonly used equipment for machining round holes in wood panels, boards, or similar workpieces. With the diversification of board types and the increasing demand for batch and flexible production, hole-drilling operations not only need to consider the processing adaptability under different materials and thicknesses, but also need to reduce downtime adjustment and maintenance costs, and minimize the adverse effects of burrs, tears, and dust generated during processing on assembly quality and the working environment, thereby improving overall processing efficiency and finished product consistency.

[0003] Existing hole-making machines are prone to jamming and getting stuck when processing wood boards using circular saws. The wood core produced during hole making often gets stuck inside the drill bit or trapped in the tool gap, requiring manual removal. Furthermore, the rough hole wall and burrs and chips after hole making increase the resistance during the return stroke, making it easy to get stuck on the return stroke as well. This affects the reliability of continuous operation and increases the frequency of manual cleaning and machine downtime for maintenance.

[0004] Existing technology (patent number: CN206366677U) discloses a hole opener, which addresses the problem of residual core material falling into the hole opener during drilling and affecting continuous operation by proposing a solution to use a spring to push the core material out after drilling. However, this solution is quite sensitive to spring parameters; if the spring force is too small, it is difficult to push out the core material, while if the spring force is too large, it will increase the cutting resistance and increase the feed load, which can easily lead to unstable drilling or even jamming. Moreover, it lacks a comprehensive solution to the problems of pull-out jamming caused by burrs and chips on the hole wall during the return stroke. Summary of the Invention

[0005] The purpose of this invention is to provide a marine plank hole-drilling machine with anti-jamming function, so as to solve the problem of the plank hole-drilling process being unsmooth and prone to jamming in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a marine wooden board punching machine with anti-jamming function, comprising a machine base and a punching device, wherein a plurality of lifting devices are slidably mounted on the machine base, a drive motor is mounted on the lifting device, and a positioning device is mounted on the lifting device.

[0007] The hole-opening device includes a drive mechanism, which is mounted on the output shaft of a drive motor. An adjustment mechanism is mounted on the drive mechanism, and a hole-opening mechanism is rotatably mounted on the adjustment mechanism. Several self-locking mechanisms are mounted on the adjustment mechanism. A double-stage triggering mechanism is mounted at the bottom of the drive mechanism. The double-stage triggering mechanism is connected to the self-locking mechanism through a second pipe, and the double-stage triggering mechanism is connected to the hole-opening mechanism through a first pipe.

[0008] A control box is installed on the machine base, containing a control system that controls the entire drilling machine. A lifting device is used to drive the drive motor and positioning device to move synchronously.

[0009] After adjustment, the operation begins. First, the wooden board to be processed is placed on the machine platform. Then, the control system activates the lifting device. The lifting device drives the positioning device and the drive motor to move synchronously. The cylinder output shaft on the positioning device automatically extends and retracts as the lifting device descends, so that the pressure block on its output shaft keeps pressing down on the wooden board during the movement of the lifting device, preventing the wooden board from shifting when drilling holes. At the same time as positioning, the control system activates the drive motor. The output shaft of the drive motor drives the drilling device to rotate, which, in conjunction with the lifting device, makes the drilling device rotate and drill holes in the wooden board.

[0010] Furthermore, the drive mechanism includes a telescopic component, an annular connector is mounted on the output shaft of the telescopic component, and a dual-stage trigger mechanism is mounted at the bottom end of the annular connector;

[0011] The adjustment mechanism includes a fixed ring and a follower ring. The fixed ring is mounted on the telescopic rod, and the follower ring is mounted on the annular connector. Several connecting rods are rotatably mounted on both the fixed ring and the follower ring.

[0012] The drilling mechanism includes several drill bit assemblies, which are rotatably mounted on a fixed ring and a follower ring respectively via connecting rods. The drill bit assemblies are connected to a dual-stage triggering mechanism via a first pipe.

[0013] The self-locking mechanism includes a follower rod and a locking assembly. The follower rod is connected to the dual-stage triggering mechanism through a second pipe. The follower rod is installed on the follower ring, and the locking assembly is installed on the fixed ring. The follower rod passes through the locking assembly.

[0014] Furthermore, the dual-stage triggering mechanism includes a housing, which is installed at the bottom of the annular connector. An adsorbable air compressor is slidably installed inside the housing. The upper and lower ends of the air compressor are connected to the housing through a second elastic element and a third elastic element, respectively. The follower rod is connected to the housing through a second pipe. A first electromagnet and a second electromagnet are installed at the upper and lower ends of the dual-stage triggering mechanism, respectively.

[0015] The drill bit assembly includes a drill rod, which is rotatably connected to a connecting rod. The drill rod is connected to the housing through a first pipe. A sliding plate is slidably mounted on the drill rod, and a first elastic member is installed between the sliding plate and the drill rod.

[0016] Before drilling, the control system first drives the electric telescopic rod to extend and retract. The output shaft of the electric telescopic rod drives the follower ring to move through the annular connector. The follower ring pushes or pulls back the drill rod through the connecting rod. Several drill rods expand or retract synchronously around the axis of the electric telescopic rod, thereby adjusting the drilling diameter of the entire drilling mechanism. This achieves the effect of automatically adjusting the drilling diameter according to different hole size requirements, avoiding frequent drill bit replacements.

[0017] Furthermore, the top of the housing is provided with several locking holes, and the bottom of the housing is provided with several expansion holes. The locking holes are connected to the follower rod through the second pipe, and the expansion holes are connected to the drill rod through the first pipe.

[0018] Furthermore, the second elastic element and the third elastic element are respectively the second spring and the third spring;

[0019] The air compressor includes a piston plate, which is slidably installed inside the housing. Adsorption rings are symmetrically installed on the upper and lower ends of the piston plate. A second spring is installed between the adsorption rings and the top end of the housing, and a third spring is installed between the adsorption rings and the bottom end of the housing. The area above the piston plate and the housing form an upper chamber, and the area below the piston plate and the housing form a lower chamber.

[0020] The adsorption ring is made of a magnetically attractive material.

[0021] After the aperture is adjusted, the control system activates the first electromagnet. When the first electromagnet is energized, it generates magnetic force. The piston plate with the adsorption ring is attracted and begins to slide upward in the housing. At this time, the pressure in the upper chamber increases, the second spring is compressed, the corresponding space in the lower chamber increases, the pressure decreases, and the third spring is stretched.

[0022] The gas in the upper chamber enters the second pipe through the locking hole and is pressurized into the locking cavity within the locking strip. The gas in the locking cavity expands, pushing the slider outwards until it abuts against the inner wall of the locking kit. This creates a large frictional clamping force between the slider and the inner wall of the locking kit, thereby limiting the relative displacement of the follower rod within the locking kit and locking the fixed ring and follower ring. Because the fixed ring and follower ring are reliably locked, their spacing is stably maintained, and correspondingly, the spacing between several drill rods is also fixed. Therefore, during subsequent drilling, even if disturbed by the reaction force of the wooden board, the drill rod spacing is not easily shifted, thus improving the stability of the drilling process and the consistency of the hole spacing.

[0023] During this period, the volume of the lower chamber increases, creating a negative pressure. This negative pressure is transmitted to the inflation column through the expansion hole, the first pipe, and the inflation channel, causing a negative pressure suction at the end of the inflation column. This suction draws gas out of the expansion chamber and maintains a continuous negative pressure state. Under the action of negative pressure, the sliding plate is reliably attracted and attached to the upper part of the drill rod groove through the sliding terminal. This stabilizes and constrains the relative movement between the sliding plate and the drill rod during the drilling operation, preventing displacement caused by vibration or reaction force and improving the stability of the drilling mechanism.

[0024] Furthermore, an air column is provided inside the drill pipe, and an air channel is provided inside the drill pipe. The air channel is connected to the air column, and the air channel is connected to the expansion hole through the first pipe.

[0025] The sliding plate is provided with a sliding terminal, the drill rod is provided with a sliding groove, the sliding terminal is slidably installed in the sliding groove of the drill rod, the sliding terminal is provided with an expansion cavity, and the air column is slidably connected to the expansion cavity;

[0026] The first elastic element is a first spring, which is installed between the sliding terminal and the slide groove.

[0027] Furthermore, the front section of the drill rod is designed with an oblique conical shape, the end of the drill rod is equipped with a drill tip, and the rear section of the drill rod is a grinding plate.

[0028] The front section of the drill pipe has an oblique conical cross-section. Several drill pipes are arranged together to form a drill bit structure with an outer cylinder and an inner frustum cavity.

[0029] The front section of the drill rod has an oblique conical cross section. Several drill rods are arranged circumferentially to form an integrated drill bit structure. The outer contour of the drill bit structure is approximately cylindrical, and the interior is enclosed by sliding plates to form a hollow cavity that is approximately frustum-shaped.

[0030] When drilling, the front part of the drill rod rotates to drill through the wooden board with the drill tip. After the front part drills through the wooden board, the drill rod continues to rotate downwards and the grinding plate at the rear part grinds the inner wall of the hole to form a smooth hole wall, thus achieving the effect of simultaneous edge trimming.

[0031] Because the drill bit structure composed of drill rods has a frustum-shaped hollow cavity inside, after drilling, there are frustum-shaped wooden scraps left in the hollow cavity. After grinding, the control system shuts down the first electromagnet and turns on the second electromagnet. Under the action of magnetic force, the piston plate slides from top to bottom in the housing. The second spring changes from a compressed state to an extended state, and the third spring changes from an extended state to a compressed state. The volume of the upper chamber increases, generating negative pressure and drawing the gas in the locking chamber into it. The slider is affected by the negative pressure attraction and retracts into the locking chamber, breaking the contact with the locking kit and completing the unlocking.

[0032] As the pressure in the lower chamber increases, gas is forced into the inflation column and injected into the expansion chamber. The expanding gas pushes the sliding terminal along the inflation column within the groove, simultaneously causing the sliding plates to slide synchronously along the inclined side of the frustum cavity. Several sliding plates then move obliquely downward synchronously and expand radially, increasing the outward expansion of the inclined surface of the frustum cavity. This causes the waste material retained within the sliding plates to detach on its own, preventing waste material from getting stuck and achieving a self-cleaning effect without manual intervention.

[0033] After the hole is drilled, the lifting device lifts the drilling device through the hole and returns it to its original position. Because the inner wall of the hole is smooth after grinding, the problem of the drilling device getting stuck during return is avoided.

[0034] Furthermore, the follower rod includes a locking bar, which has a locking cavity, and a slider is slidably installed in the locking cavity. The locking cavity is connected to the locking hole through a second pipe.

[0035] The side of the slider facing away from the locking cavity has a rough surface design, and the inner wall of the locking kit opposite the locking bar also has a rough surface design.

[0036] The rough surface design of the slider and locking kit creates a large frictional force when the slider contacts the locking kit, thereby limiting the displacement of the follower rod within the locking kit and achieving the locking purpose.

[0037] Furthermore, the telescopic component is an electric telescopic rod, and the annular connector is installed on the output shaft of the electric telescopic rod.

[0038] Furthermore, the positioning device includes a cylinder, which is mounted on the lifting device, and a pressing block is mounted on the cylinder output shaft.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. By using an electric telescopic rod to drive the follower ring, multiple drill rods can be simultaneously extended or retracted around the axis, enabling rapid adjustment and automatic matching of the hole diameter; thus adapting to different hole diameter requirements, reducing the frequency of drill bit replacement and machine downtime for adjustment, and improving processing efficiency and ease of operation.

[0041] 2. After the aperture adjustment is completed, the piston plate is driven to move up by the first electromagnet, which pressurizes the upper chamber and creates a negative pressure in the lower chamber. On the one hand, the pressurized gas in the upper chamber is pushed to the locking chamber, which pushes the slider to extend outward and forms a friction clamp with the inner wall of the locking head, thereby achieving reliable locking of the fixed ring and the follower ring, thus stabilizing the drill rod spacing and avoiding aperture deviation caused by the drilling reaction force. On the other hand, the negative pressure in the lower chamber is transmitted to the expansion chamber through the passage, keeping it in a negative pressure state, which in turn causes the sliding plate to be stably adsorbed and positioned above the drill rod groove, suppressing relative movement during the drilling process and improving the overall structural stability and processing consistency of the drilling process.

[0042] 3. During the drilling process, the drill tip at the front of the drill rod rotates and cuts through the wooden board; after penetration, the drill rod continues to rotate downwards, and the grinding plate at the rear of the drill rod simultaneously grinds and finishes the inner wall of the hole, making the hole wall smoother and more even. This achieves integrated drilling and edge trimming, improving the quality of the hole wall and reducing subsequent secondary finishing processes. After drilling, because the hole wall has been ground smooth, the risk of return friction and interference is reduced, preventing return jamming and improving reset stability and continuous operation reliability.

[0043] 4. After grinding, the control system turns off the first electromagnet and turns on the second electromagnet, causing the piston plate to move down: On the one hand, the volume of the upper chamber increases to form a negative pressure, drawing back the gas in the locking chamber, causing the slider to retract and disengage from the inner wall of the locking head, thereby unlocking the fixed ring and the follower ring; on the other hand, the pressure in the lower chamber increases and inflates the expansion chamber, pushing the sliding terminal and the sliding plate to slide synchronously along the inclined side of the frustum cavity and generate radial expansion, increasing the size of the inclined surface of the hollow cavity, causing the residual waste to fall off automatically, achieving the effects of self-cleaning, anti-jamming, and no manual cleaning. Attached Figure Description

[0044] Figure 1 This is an overall elevation view of the hole-opening machine of the present invention;

[0045] Figure 2 This is an elevation view of the hole-opening machine of the present invention;

[0046] Figure 3 This is an elevation view of the opening device of the present invention;

[0047] Figure 4 This is an elevation view of the drive mechanism and adjustment mechanism of the present invention;

[0048] Figure 5 This is a cross-sectional view of the hole-opening mechanism of the present invention;

[0049] Figure 6 This is an elevation view of the sliding plate component of the present invention;

[0050] Figure 7 This is an elevation view of the drill pipe of the present invention;

[0051] Figure 8 For the present invention Figure 5 A magnified view of a portion of region A in the middle;

[0052] Figure 9 This is a cross-sectional view of the dual-segment triggering mechanism of the present invention;

[0053] Figure 10 This is a cross-sectional view of the self-locking mechanism of the present invention.

[0054] In the diagram: 1. Machine base; 2. Lifting device; 3. Drive motor; 4. Positioning device; 5. Hole-opening device; 41. Cylinder; 42. Lower pressure block; 51. Drive mechanism; 52. Adjustment mechanism; 53. Hole-opening mechanism; 54. Dual-stage triggering mechanism; 55. Self-locking mechanism; 511. Electric telescopic rod; 512. Annular connector; 521. Fixed ring; 522. Follower ring; 523. Connecting rod; 531. Drill rod; 532. Sliding plate; 533. First spring; 5311. Inflation column; 5312. Inflation channel ; 5313, drill tip; 5314, grinding plate; 5321, sliding terminal; 5322, expansion cavity; 541, housing; 542, first electromagnet; 543, second electromagnet; 544, piston plate; 545, adsorption ring; 546, second spring; 547, third spring; 5411, locking hole; 5412, expansion hole; 5413, upper chamber; 5414, lower chamber; 551, locking bar; 552, locking kit; 553, slider; 554, locking cavity; 61, first pipe; 62, second pipe. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Example: Figures 1-10 As shown, the present invention provides a technical solution: a marine wooden board punching machine with anti-jamming function, including a machine base 1 and a punching device 5. Several lifting devices 2 are slidably installed on the machine base 1. A drive motor 3 is installed on the lifting device 2. A positioning device 4 is installed on the lifting device 2.

[0057] The hole-opening device 5 includes a drive mechanism 51, which is mounted on the output shaft of the drive motor 3. An adjustment mechanism 52 is mounted on the drive mechanism 51, and a hole-opening mechanism 53 is rotatably mounted on the adjustment mechanism 52. Several self-locking mechanisms 55 are mounted on the adjustment mechanism 52. A double-stage triggering mechanism 54 is mounted at the bottom of the drive mechanism 51. The double-stage triggering mechanism 54 is connected to the self-locking mechanism 55 through a second pipe 62, and is connected to the hole-opening mechanism 53 through a first pipe 61.

[0058] A control box is installed on the machine base 1, which contains a control system for controlling the entire drilling machine. The lifting device 2 is used to drive the drive motor 3 and the positioning device 4 to move synchronously.

[0059] The positioning device 4 includes a cylinder 41, which is mounted on the lifting device 2. A pressing block 42 is mounted on the output shaft of the cylinder 41.

[0060] The drive mechanism 51 includes a telescopic component, an annular connector 512 is mounted on the output shaft of the telescopic component, and a dual-stage trigger mechanism 54 is mounted on the bottom end of the annular connector 512.

[0061] The adjusting mechanism 52 includes a fixed ring 521 and a follower ring 522. The fixed ring 521 is mounted on the telescopic rod, and the follower ring 522 is mounted on the annular connector 512. Several connecting rods 523 are rotatably mounted on both the fixed ring 521 and the follower ring 522.

[0062] The drilling mechanism 53 includes several drill bit assemblies. The drill bit assemblies are rotatably mounted on the fixed ring 521 and the follower ring 522 respectively via the connecting rod 523. The drill bit assemblies are connected to the dual-stage triggering mechanism 54 via the first pipe 61.

[0063] The self-locking mechanism 55 includes a follower rod and a locking kit 552. The follower rod is connected to the dual-stage triggering mechanism 54 through the second pipe 62. The follower rod is installed on the follower ring 522, and the locking kit 552 is installed on the fixed ring 521. The follower rod passes through the locking kit 552.

[0064] The telescopic component is an electric telescopic rod 511, and the annular connector 512 is installed on the output shaft of the electric telescopic rod 511.

[0065] The dual-stage triggering mechanism 54 includes a housing 541, which is installed at the bottom of the annular connector 512. An adsorbable air compressor is slidably installed inside the housing 541. The upper and lower ends of the air compressor are connected to the housing 541 through a second elastic element and a third elastic element, respectively. The follower rod is connected to the housing 541 through a second pipe 62. A first electromagnet 542 and a second electromagnet 543 are installed at the upper and lower ends of the dual-stage triggering mechanism 54, respectively.

[0066] The drill bit assembly includes a drill rod 531, which is rotatably connected to a connecting rod 523. The drill rod 531 is connected to the housing 541 through a first pipe 61. A sliding plate 532 is slidably mounted on the drill rod 531, and a first elastic member is installed between the sliding plate 532 and the drill rod 531.

[0067] The top of the housing 541 is provided with several locking holes 5411, and the bottom of the housing 541 is provided with several expansion holes 5412. The locking holes 5411 are connected to the follower rod through the second pipe 62, and the expansion holes 5412 are connected to the drill rod 531 through the first pipe 61.

[0068] The follower rod includes a locking bar 551, a locking cavity 554 is provided in the locking bar 551, a slider 553 is slidably installed in the locking cavity 554, and the locking cavity 554 is connected to the locking hole 5411 through the second pipe 62.

[0069] The side of slider 553 facing away from locking cavity 554 has a rough surface design, and the inner wall of locking kit 552 opposite to locking bar 551 has a rough surface design.

[0070] The rough surface design of slider 553 and locking kit 552 causes a large frictional force to be generated when slider 553 contacts locking kit 552, thereby limiting the displacement of follower rod within locking kit 552 and achieving the locking purpose.

[0071] The second elastic element and the third elastic element are the second spring 546 and the third spring 547, respectively.

[0072] The air compressor includes a piston plate 544, which is slidably installed inside the housing 541. Adsorption rings 545 are symmetrically installed on the upper and lower ends of the piston plate 544. A second spring 546 is installed between the adsorption rings 545 and the top end of the housing 541, and a third spring 547 is installed between the adsorption rings 545 and the bottom end of the housing 541. The area above the piston plate 544 and the housing 541 form an upper chamber 5413, and the area below the piston plate 544 and the housing 541 form a lower chamber 5414.

[0073] The adsorption ring 545 is made of a magnetically attractive material.

[0074] The drill rod 531 is provided with an air column 5311 and an air channel 5312. The air channel 5312 is connected to the air column 5311 and the air channel 5312 is connected to the expansion hole 5412 through the first pipe 61.

[0075] The sliding plate 532 is provided with a sliding terminal 5321, the drill rod 531 is provided with a sliding groove, the sliding terminal 5321 is slidably installed in the sliding groove of the drill rod 531, the sliding terminal 5321 is provided with an expansion cavity 5322, and the air column 5311 is slidably connected to the expansion cavity 5322.

[0076] The first elastic element is a first spring 533, which is installed between the sliding terminal 5321 and the slide groove.

[0077] The front section of the drill rod 531 is designed with a slanted cone shape, and the end of the drill rod 531 is provided with a drill tip 5313. The rear section of the drill rod 531 is a grinding plate 5314.

[0078] The front section of drill rod 531 has an oblique conical cross section. Several drill rods 531 are arranged together to form a drill bit structure with an outer cylinder and an inner frustum cavity.

[0079] The front section of the drill rod 531 is obliquely conical. Several drill rods 531 are arranged circumferentially to form an integrated drill bit structure. The outer contour of the drill bit structure is approximately cylindrical, and the interior is enclosed by sliding plates 532 to form an approximately frustum-shaped hollow cavity.

[0080] The working principle of this invention is as follows: Before drilling, the control system first drives the electric telescopic rod 511 to extend and retract. The output shaft of the electric telescopic rod 511 drives the follower ring 522 to move through the annular connector 512. The follower ring 522 pushes or pulls the drill rod 531 through the connecting rod 523. Several drill rods 531 expand or retract synchronously around the axis of the electric telescopic rod 511, thereby adjusting the drilling diameter of the entire drilling mechanism 53. This achieves the effect of automatically adjusting the drilling diameter according to different hole size requirements, avoiding frequent drill bit replacements.

[0081] After the aperture is adjusted, the control system activates the first electromagnet 542. When the first electromagnet 542 is energized, it generates magnetic force. The piston plate 544, which is equipped with the adsorption ring 545, begins to slide upward in the housing 541 under the adsorption force. At this time, the pressure in the upper chamber 5413 increases, the second spring 546 is compressed, the space in the corresponding lower chamber 5414 increases, the pressure decreases, and the third spring 547 is stretched.

[0082] Gas in the upper chamber 5413 enters the second pipe 62 through the locking hole 5411 and is pressurized into the locking cavity 554 in the locking bar 551. The gas in the locking cavity 554 expands, pushing the slider 553 outwards until it abuts against the inner wall of the locking kit 552. This creates a large frictional clamping force between the slider 553 and the inner wall of the locking kit 552, thereby limiting the relative displacement of the follower rod within the locking kit 552 and locking the fixed ring 521 and the follower ring 522. Because the fixed ring 521 and the follower ring 522 are reliably locked, their spacing is stably maintained, and correspondingly, the spacing between several drill rods 531 is also fixed. Therefore, during subsequent drilling, even if disturbed by the reaction force of the wooden board, the spacing of the drill rods 531 is not easily shifted, thus improving the stability of the drilling process and the consistency of the hole spacing.

[0083] During this period, the volume of the lower chamber 5414 increases, creating a negative pressure. This negative pressure is transmitted to the inflation column 5311 through the expansion hole 5412, the first pipe 61, and the inflation channel 5312, causing a negative pressure suction at the end of the inflation column 5311. This suction force draws gas out of the expansion chamber 5322, maintaining it in a continuous negative pressure state. Under this negative pressure, the sliding plate 532 is reliably attracted and attached to the upper part of the drill rod 531's groove via the sliding terminal 5321. This stabilizes and constrains the relative movement between the sliding plate 532 and the drill rod 531 during the drilling operation, preventing displacement caused by vibration or reaction force and improving the stability of the drilling mechanism 53.

[0084] After adjustment, the operation begins. First, the wooden board to be processed is placed on machine 1. Then, the control system activates the lifting device 2. The lifting device 2 drives the positioning device 4 and the drive motor 3 to move synchronously. The output shaft of the cylinder 41 on the positioning device 4 automatically extends and retracts as the lifting device 2 descends, so that the pressure block 42 on its output shaft keeps pressing down on the wooden board during the movement of the lifting device 2, preventing the wooden board from shifting when drilling holes. At the same time as positioning, the control system activates the drive motor 3. The output shaft of the drive motor 3 drives the drilling device 5 to rotate, which, together with the lifting device 2, makes the drilling device 5 drill holes in the wooden board while rotating downwards.

[0085] When drilling, the front section of the drill rod 531 rotates to drill through the wood board using the drill tip 5313. After the front section drills through the wood board, the drill rod 531 continues to rotate downwards and grinds the inner wall of the hole through the grinding plate 5314 at the rear section to form a smooth hole wall, thus achieving the effect of simultaneous edge trimming.

[0086] Since the drill bit structure composed of drill rod 531 has a frustum-shaped hollow cavity inside, after drilling, there are frustum-shaped wooden scraps left in the hollow cavity. After grinding, the control system shuts down the first electromagnet 542 and turns on the second electromagnet 543. Under the action of magnetic force, the piston plate 544 slides from top to bottom in the housing 541. The second spring 546 changes from a compressed state to a stretched state, and the third spring 547 changes from a stretched state to a compressed state. The volume of the upper chamber 5413 increases, generating negative pressure and drawing the gas in the locking chamber 554 into it. The slider 553 is affected by the negative pressure attraction and retracts into the locking chamber 554, breaking the contact with the locking kit 552 and completing the unlocking.

[0087] As the pressure in the lower chamber 5414 increases, gas is forced into the inflation column 5311 and injected into the expansion chamber 5322. The expanding gas pushes the sliding terminal 5321 along the inflation column 5311 in the groove, while simultaneously causing the sliding plate 532 to slide synchronously along the inclined side of the frustum cavity. Several sliding plates 532 then move obliquely downward synchronously and generate radial expansion, causing the inclined surface of the frustum cavity to expand outward, thereby causing the waste material retained in the sliding plate 532 to fall off on its own, avoiding waste material jamming, and achieving a self-cleaning effect without manual intervention.

[0088] After the hole is drilled, the lifting device 2 drives the hole-drilling device 5 through the hole and lifts it back to its original position. Since the inner wall of the hole is smooth after grinding, the problem of the hole-drilling device 5 getting stuck during return is avoided.

[0089] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A marine plank hole-drilling machine with anti-jamming function, characterized in that: The hole-opening machine includes a machine base (1) and a hole-opening device (5). Several lifting devices (2) are slidably installed on the machine base (1). A drive motor (3) is installed on the lifting device (2). A positioning device (4) is installed on the lifting device (2). The opening device (5) includes a drive mechanism (51), which is mounted on the output shaft of a drive motor (3). An adjustment mechanism (52) is mounted on the drive mechanism (51), and an opening mechanism (53) is rotatably mounted on the adjustment mechanism (52). Several self-locking mechanisms (55) are mounted on the adjustment mechanism (52). A double-stage triggering mechanism (54) is mounted at the bottom of the drive mechanism (51). The double-stage triggering mechanism (54) is connected to the self-locking mechanism (55) through a second pipe (62), and the double-stage triggering mechanism (54) is connected to the opening mechanism (53) through a first pipe (61). The drive mechanism (51) includes a telescopic component, and an annular connector (512) is mounted on the output shaft of the telescopic component. The dual-stage trigger mechanism (54) is mounted on the bottom end of the annular connector (512). The adjustment mechanism (52) includes a fixed ring (521) and a follower ring (522). The fixed ring (521) is mounted on the telescopic rod, and the follower ring (522) is mounted on the annular connector (512). Several connecting rods (523) are rotatably mounted on both the fixed ring (521) and the follower ring (522). The hole-opening mechanism (53) includes several drill bit assemblies, which are rotatably mounted on the fixed ring (521) and the follower ring (522) respectively via connecting rods (523). The drill bit assemblies are connected to the dual-stage triggering mechanism (54) via the first pipe (61). The self-locking mechanism (55) includes a follower rod and a locking kit (552). The follower rod is connected to the dual-stage trigger mechanism (54) through a second pipe (62). The follower rod is installed on the follower ring (522). The locking kit (552) is installed on the fixed ring (521). The follower rod passes through the locking kit (552). The dual-stage triggering mechanism (54) includes a housing (541), which is installed at the bottom of the annular connector (512). An adsorbable air compressor is slidably installed inside the housing (541). The upper and lower ends of the air compressor are connected to the housing (541) through a second elastic element and a third elastic element, respectively. The follower rod is connected to the housing (541) through a second pipe (62). A first electromagnet (542) and a second electromagnet (543) are installed at the upper and lower ends of the dual-stage triggering mechanism (54), respectively. The drill bit assembly includes a drill rod (531), which is rotatably connected to a connecting rod (523). The drill rod (531) is connected to the housing (541) through a first pipe (61). A sliding plate (532) is slidably installed on the drill rod (531), and a first elastic element is installed between the sliding plate (532) and the drill rod (531).

2. A marine plank hole-punching machine with anti-jamming function according to claim 1, characterized in that: The top of the housing (541) is provided with a plurality of locking holes (5411), and the bottom of the housing (541) is provided with a plurality of expansion holes (5412). The locking holes (5411) are connected to the follower rod through the second pipe (62), and the expansion holes (5412) are connected to the drill rod (531) through the first pipe (61).

3. A marine plank hole-punching machine with anti-jamming function according to claim 1, characterized in that: The second elastic element and the third elastic element are the second spring (546) and the third spring (547), respectively. The air compressor includes a piston plate (544), which is slidably installed inside the housing (541). Adsorption rings (545) are symmetrically installed on the upper and lower ends of the piston plate (544). A second spring (546) is installed between the adsorption ring (545) and the top end of the housing (541). A third spring (547) is installed between the adsorption ring (545) and the bottom end of the housing (541). The area above the piston plate (544) and the housing (541) form an upper chamber (5413), and the area below the piston plate (544) and the housing (541) form a lower chamber (5414).

4. A marine plank hole-punching machine with anti-jamming function according to claim 2, characterized in that: The drill rod (531) is provided with an air column (5311) and an air channel (5312) is provided inside the drill rod (531). The air channel (5312) is connected to the air column (5311) and the air channel (5312) is connected to the expansion hole (5412) through the first pipe (61). The sliding plate (532) is provided with a sliding terminal (5321), the drill rod (531) is provided with a sliding groove, the sliding terminal (5321) is slidably installed in the sliding groove of the drill rod (531), the sliding terminal (5321) is provided with an expansion cavity (5322), and the air column (5311) is slidably connected to the expansion cavity (5322); The first elastic element is a first spring (533), which is installed between the sliding terminal (5321) and the slide groove.

5. A marine plank hole-punching machine with anti-jamming function according to claim 4, characterized in that: The front section of the drill rod (531) is designed as a slanted cone, the end of the drill rod (531) is provided with a drill tip (5313), and the rear section of the drill rod (531) is a grinding plate (5314).

6. A marine plank hole-drilling machine with anti-jamming function according to claim 2, characterized in that: The follower rod includes a locking bar (551), a locking cavity (554) is provided in the locking bar (551), a slider (553) is slidably installed in the locking cavity (554), and the locking cavity (554) is connected to the locking hole (5411) through the second pipe (62). The side of the slider (553) facing away from the locking cavity (554) is designed with a rough surface, and the inner wall of the locking kit (552) opposite to the locking strip (551) is designed with a rough surface.

7. A marine plank hole-punching machine with anti-jamming function according to claim 1, characterized in that: The telescopic component is an electric telescopic rod (511), and the annular connector (512) is installed on the output shaft of the electric telescopic rod (511).

8. A marine plank hole-punching machine with anti-jamming function according to claim 1, characterized in that: The positioning device (4) includes a cylinder (41), which is mounted on the lifting device (2), and a pressing block (42) is mounted on the output shaft of the cylinder (41).

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