Drilling device for building material plate

Abstract

The invention belongs to the technical field of drilling devices, and particularly relates to a drilling device for a building material plate, which comprises a rack, a lifting seat, a drilling machine and a cylindrical drill bit, and further comprises a plate hardness detection mechanism arranged in the cylindrical drill bit, and the detection end of the plate hardness detection mechanism extends to the outside of the cylindrical drill bit; and the two pressure detection mechanisms are symmetrically arranged on the outer walls of the two sides of the cylindrical drill bit and used for detecting the hole wall pressure of the plate. The hardness of the marble slab can be detected, the power of the drilling machine can be automatically adjusted, cracks caused by improper power are avoided, cost is reduced, and efficiency is improved; meanwhile, excess materials can be automatically pushed out after drilling is finished, and time is saved; the hole wall pressure can be monitored in real time, the power of the drilling machine is automatically adjusted when the threshold value is exceeded, and the drilling quality is improved; in addition, the cooling mechanism cools the inner wall and the outer wall of the drill bit, abrasion is reduced, energy waste is avoided, and finally intelligent, efficient and precise building material plate drilling operation is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling devices, and in particular relates to a drilling device for building material boards. Background Art

[0002] At present, when drilling marble building material boards, cylindrical drill bits have become the mainstream tool due to their high efficiency and precise drilling capabilities. However, there are many types of marble, and different types of marble have significant differences in physical properties such as hardness.

[0003] In the design of conventional drilling devices, the rotation speed of the drill bit is often fixed, or only limited manual adjustment can be performed, which results in the inability to achieve adaptive adjustment when facing marbles of different hardness. For example, announcement number: CN220805542U discloses a building material drilling device. When drilling marble with lower hardness, if the cylindrical drill bit rotates too fast, the external force generated between the cylindrical drill bit and the marble, including extrusion force, friction force, etc., will far exceed the range that the marble can withstand. This excessive external force can easily damage the internal structure of the marble, and then cracks will be generated on the surface and inside of the marble; for marble with higher hardness, if the cylindrical drill bit rotates too slowly, not only will the drilling efficiency be greatly reduced, but the drill bit may also cause excessive external force due to long-term excessive friction between the drill bit and the marble, resulting in cracks, increasing production costs and reducing production efficiency.

[0004] To this end, a drilling device for a building material plate is proposed. Summary of the invention

[0005] The object of the present invention is to provide a drilling device for building material panels in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: a drilling device for building material board, comprising a frame, a lifting seat, a drilling rig and a cylindrical drill bit, wherein the lifting seat is arranged on the top side wall of the frame, the drilling rig is arranged inside the lifting seat, and the rotating shaft of the drilling rig is arranged downwardly, the cylindrical drill bit is arranged on the rotating shaft of the drilling rig, and further comprising: A plate hardness detection mechanism is arranged inside the cylindrical drill bit, and a detection end of the plate hardness detection mechanism extends to the outside of the cylindrical drill bit; Two pressure detection mechanisms are symmetrically arranged on the outer walls of both sides of the cylindrical drill bit, and are used to detect the hole wall pressure of the plate; A cooling mechanism is disposed on the rotating shaft of the drilling rig, and the cooling mechanism sprays water toward the cylindrical drill bit to cool it down; A plate clamping mechanism is fixedly arranged on the side wall of the frame, and the plate clamping mechanism is located below the cylindrical drill bit; A wireless communication module is fixedly arranged on the side wall of the frame; The PLC controller is fixedly arranged on the side wall of the frame, and the lifting seat, the drilling machine, the plate hardness detection mechanism, the pressure detection mechanism, the cooling mechanism and the wireless communication module are all electrically connected to the PLC controller.

[0007] Preferably, the plate hardness detection mechanism includes a wireless Brinell hardness tester, a telescopic sleeve is fixedly provided on the top inner wall of the cylindrical drill bit, a slider is provided inside the telescopic sleeve, a first spring is fixedly provided between the top of the slider and the top of the telescopic sleeve, a telescopic rod is fixedly provided on the bottom of the slider, the lower end of the telescopic rod extends to the outside of the telescopic sleeve and is fixedly connected to the wireless Brinell hardness tester, and the side wall of the telescopic sleeve is provided with an electromagnetic positioning mechanism which is plugged into and cooperates with the slider.

[0008] Preferably, the electromagnetic positioning mechanism includes a positioning sleeve fixedly arranged on the side wall of the telescopic sleeve, a permanent magnet block is provided inside the positioning sleeve for transverse sliding, an electromagnetic block is fixedly provided on the inner side wall of the positioning sleeve, a positioning rod is fixedly provided on the side of the permanent magnet block away from the electromagnetic block, one end of the positioning rod away from the permanent magnet block extends to the outside of the positioning sleeve, a positioning groove matching one end of the positioning rod is formed on the side wall of the slider, a second spring is sleeved on the rod wall of the positioning rod, and the two ends of the second spring are respectively fixedly connected to the side wall of the slider and the inner wall of the positioning sleeve.

[0009] Preferably, the pressure detection mechanism includes a wireless pressure sensor, a mounting groove is provided on the side wall of the cylindrical drill bit, and a push-out plate is provided for lateral sliding of the mounting groove, a third spring is fixedly provided between one side of the push-out plate and the interior of the mounting groove, and the other side of the push-out plate is fixedly connected to the wireless pressure sensor, limit blocks are fixedly provided on the upper and lower sides of the push-out plate, and limit grooves matching the limit blocks are provided on the top and bottom of the mounting groove of the cylindrical drill bit.

[0010] Preferably, the cooling mechanism includes a water tank fixedly arranged on the side wall of the frame, a water pump is fixedly arranged inside the water tank, a soft water pipe extending downward is fixedly arranged at the output end of the water pump, an annular pipe is arranged outside the rotating shaft of the drilling rig, and the annular pipe is connected to the soft water pipe, L-shaped connecting rods are fixedly arranged on both sides of the top of the annular pipe, one end of the two L-shaped connecting rods away from the annular pipe is fixedly connected to the side wall of the rotating shaft protective sleeve of the drilling rig, and a plurality of evenly distributed water outlet holes are opened on the inner side wall of the annular pipe.

[0011] Preferably, a plurality of evenly distributed water inlet holes are opened around the top of the cylindrical drill bit, and a plurality of evenly distributed heat dissipation water guide grooves are opened on the inner side wall of the cylindrical drill bit, and the positions of the plurality of heat dissipation water guide grooves are arranged in a one-to-one correspondence with the positions of the plurality of water inlet holes.

[0012] Preferably, the plate clamping mechanism includes a clamping platform fixedly arranged on the side wall of the frame, a movable seat is provided on the upper surface of the clamping platform, a first screw set is rotatably provided inside the clamping platform and is threadedly connected to the movable seat, two clamping plates are symmetrically provided on the top of the movable seat, and a second screw set is threadedly connected to the two clamping plates inside the movable seat.

[0013] Preferably, the two clamping plates both adopt an L-shaped structure, and the two clamping plates are arranged in opposite distribution, and a discharge groove is opened on the upper surface of the movable seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the set plate hardness detection mechanism, the hardness of the marble plate is detected by the wireless Brinell hardness tester before drilling, and the data is fed back to the PLC controller, so that the PLC controller can automatically control the drilling power of the drill according to different hardness and set the threshold of the pressure detection mechanism, avoiding the problem of cracks on the softer marble plate caused by excessive drilling power, or low drilling efficiency and cracks caused by excessive friction on the harder marble plate due to too low power, effectively reducing production costs. At the same time, after drilling, under the action of elastic force, the wireless Brinell hardness tester can automatically push out the remaining drilling material in the cylindrical drill bit, without the need for staff to manually take out the material, saving time and improving drilling efficiency.

[0015] 2. Through the pressure detection mechanism set up, the pressure detection mechanism is thrown out from the inside of the cylindrical drill bit by utilizing the centrifugal force, so that the wireless pressure sensor contacts the inner wall of the borehole, and can detect the extrusion size between the cylindrical drill bit and the hole wall in real time. Once the detected pressure value exceeds the preset threshold, the wireless pressure sensor will feedback a signal to the PLC controller, so that the PLC controller can adjust the power of the cylindrical drill bit in time, avoiding cracks in the marble slab due to improper rotation speed of the drill bit, improving the quality and efficiency of drilling, and further reducing production costs.

[0016] 3. Through the cooling mechanism, the water pump can transport the cooling water in the water tank to the annular pipe through the soft water pipe, and then spray it on the cylindrical drill bit from multiple water outlets. It can not only cool the outer wall of the cylindrical drill bit, but also a small amount of cooling water can enter the inside of the cylindrical drill bit through the water inlet hole, and cool the inner wall along the heat dissipation water guide groove, which significantly improves the cooling effect, reduces drill bit wear, and extends the service life of the drill bit. Moreover, the PLC controller can adjust the water pump power according to the pressure detection value to achieve reasonable use of cooling water and avoid energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a drilling device for building material boards provided by the present invention; Figure 2 It is a structural schematic diagram of the connection between the rotating shaft, the cylindrical drill bit and the annular pipe of a drilling device for building material boards provided by the present invention; Figure 3 It is a three-dimensional diagram of a cylindrical drill bit of a drilling device for building material boards provided by the present invention; Figure 4 It is a structural schematic diagram of a plate hardness detection mechanism of a drilling device for building material plates provided by the present invention; Figure 5 It is a structural schematic diagram of an electromagnetic positioning mechanism of a drilling device for a building material board provided by the present invention; Figure 6 It is a structural schematic diagram of a pressure detection mechanism of a drilling device for a building material board provided by the present invention; Figure 7 It is a structural schematic diagram of a cooling mechanism of a drilling device for a building material board provided by the present invention; Figure 8 The present invention is a schematic structural diagram of a plate clamping mechanism of a drilling device for a building material plate.

[0018] In the figure: 1 frame, 2 lifting seat, 3 drilling machine, 4 cylindrical drill bit, 5 plate hardness detection mechanism, 51 wireless Brinell hardness tester, 52 telescopic sleeve, 53 slider, 54 first spring, 55 telescopic rod, 6 pressure detection mechanism, 61 wireless pressure sensor, 62 ejection plate, 63 third spring, 64 limit block, 7 cooling mechanism, 71 water tank, 72 water pump, 73 soft water pipe, 74 annular pipe, 75 L-shaped connecting rod, 76 water outlet, 8 plate clamping mechanism, 81 clamping platform, 82 moving seat, 83 first screw kit, 84 clamping plate, 85 second screw kit, 9 wireless communication module, 10 PLC controller, 11 electromagnetic positioning mechanism, 111 positioning sleeve, 112 permanent magnet block, 113 electromagnetic block, 114 positioning rod, 115 second spring, 12 water inlet, 13 heat dissipation water guide groove. Implementation

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 8As shown, a drilling device for building material board includes a frame 1, a lifting seat 2, a drill rig 3 and a cylindrical drill bit 4. The lifting seat 2 is arranged on the top side wall of the frame 1. A hydraulic lifting system connected to the lifting seat 2 is arranged inside the frame 1. By controlling the hydraulic lifting system and completing the lifting operation of the lifting seat 2, the drill rig 3 is arranged inside the lifting seat 2, and the rotating shaft of the drill rig 3 is arranged downwardly. The cylindrical drill bit 4 is arranged on the rotating shaft of the drill rig 3, and also includes: The plate hardness detection mechanism 5 is arranged inside the cylindrical drill bit 4, and the detection end of the plate hardness detection mechanism 5 extends to the outside of the cylindrical drill bit 4. The plate hardness detection mechanism 5 includes a wireless Brinell hardness tester 51. A telescopic sleeve 52 is fixedly provided on the top inner wall of the cylindrical drill bit 4. A slider 53 is provided inside the telescopic sleeve 52. A first spring 54 is fixedly provided between the top of the slider 53 and the top of the telescopic sleeve 52. A telescopic rod 55 is fixedly provided at the bottom of the slider 53. The lower end of the telescopic rod 55 extends to the outside of the telescopic sleeve 52 and is fixedly connected to the wireless Brinell hardness tester 51. When the pressure head of the wireless Brinell hardness tester 51 is about to contact the surface of the marble slab, the hardness of the marble slab can be tested. When the cylindrical drill bit 4 continues to move downward, the wireless Brinell hardness tester 51 is continuously pushed upward, so that the telescopic rod 55 drives the slider 53 to move upward and compress the first spring 54, which can make the wireless Brinell hardness tester 51 have a tendency to push the drilling residue downward; the side wall of the telescopic sleeve 52 is provided with an electromagnetic positioning mechanism 11 plugged with the slider 53, and the electromagnetic positioning mechanism 11 includes a positioning sleeve 1 fixedly arranged on the side wall of the telescopic sleeve 52 11. A permanent magnet block 112 is provided in the interior of the positioning sleeve 111 for horizontal sliding. An electromagnetic block 113 is fixedly provided on the inner side wall of the positioning sleeve 111. A positioning rod 114 is fixedly provided on the side of the permanent magnet block 112 away from the electromagnetic block 113. One end of the positioning rod 114 away from the permanent magnet block 112 extends to the outside of the positioning sleeve 111. A positioning groove is provided on the side wall of the slider 53 to match one end of the positioning rod 114. A second spring 115 is sleeved on the rod wall of the positioning rod 114, and the two ends of the second spring 115 are respectively engaged with the side wall of the slider 53 and the inner wall of the positioning sleeve 111. The electromagnetic block 113 is fixedly connected. When the electromagnetic block 113 is powered on, it will generate a repulsive magnetic force. This repulsive magnetic force will push the permanent magnet block 112 to overcome the elastic force of the second spring 115 and move, so that one end of the positioning rod 114 is inserted into the interior of the telescopic sleeve 52 and plugged into the positioning groove on the side wall of the slider 53. At this time, the positioning of the slider 53, the telescopic rod 55 and the wireless Brinell hardness tester 51 is completed. When the power supply of the electromagnetic block 113 is disconnected, the second spring 115 applies an elastic force to the permanent magnet block 112, so that the positioning rod 114 moves out from the interior of the positioning groove.

[0021] Two pressure detection mechanisms 6 are symmetrically arranged on the outer walls of both sides of the cylindrical drill bit 4, and are used to detect the hole wall pressure of the plate. The pressure detection mechanism 6 includes a wireless pressure sensor 61. The side wall of the cylindrical drill bit 4 is provided with a mounting groove, and a push-out plate 62 is provided for the lateral sliding of the mounting groove. A third spring 63 is fixedly arranged between one side of the push-out plate 62 and the inside of the mounting groove, and the other side of the push-out plate 62 is fixedly connected to the wireless pressure sensor 61. Limit blocks 64 are fixedly arranged on the upper and lower sides of the push-out plate 62. The mounting of the cylindrical drill bit 4 The top and bottom of the mounting groove are both provided with limit grooves that cooperate with the limit block 64. The cooperation between the limit block 64 and the limit groove can prevent the wireless pressure sensor 61 and the ejection plate 62 from being thrown out when the tubular drill bit 4 is idling. When drilling, the tubular drill bit 4 can throw the wireless pressure sensor 61 and the ejection plate 62 out of the inside of the mounting groove, and make the ejection plate 62 move to overcome the elastic force of the third spring 63. The wireless pressure sensor 61 will contact the inner wall of the drill hole when thrown out, and can detect the extrusion size between the tubular drill bit 4 and the hole wall in real time.

[0022] The cooling mechanism 7 is arranged on the rotating shaft of the drilling rig 3, and the cooling mechanism 7 sprays water toward the cylindrical drill bit 4 for cooling. The cooling mechanism 7 includes a water storage tank 71 fixedly arranged on the side wall of the frame 1, and a water pump 72 is fixedly arranged inside the water storage tank 71. A soft water pipe 73 extending downward is fixedly arranged at the output end of the water pump 72. An annular pipe 74 is arranged outside the rotating shaft of the drilling rig 3, and the annular pipe 74 is connected to the soft water pipe 73. L-shaped connecting rods 75 are fixedly arranged on both sides of the top of the annular pipe 74. One end of the two L-shaped connecting rods 75 away from the annular pipe 74 is fixedly connected to the side wall of the rotating shaft protective sleeve of the drilling rig 3. A plurality of evenly distributed water outlet holes 76 are opened on the inner side wall of the annular pipe 74. The top of the cylindrical drill bit 4 surrounds A plurality of evenly distributed water inlet holes 12 are provided, and a plurality of evenly distributed heat dissipation water guide grooves 13 are provided on the inner side wall of the cylindrical drill bit 4. The positions of the plurality of heat dissipation water guide grooves 13 are arranged in a one-to-one correspondence with the positions of the plurality of water inlet holes 12. When the water pump 72 is working, the cooling water inside the water storage tank 71 can be sucked into the inside of the soft water pipe 73, and then discharged into the inside of the annular pipe 74, and finally sprayed on the top of the cylindrical drill bit 4 through the plurality of water outlet holes 76, so that the cooling water flows down the circumferential wall of the cylindrical drill bit 4 and falls at the position of the drill hole. At the same time, a small amount of cooling water will enter the inside of the cylindrical drill bit 4 through the water inlet hole 12, and the cooling water enters the inner wall of the cylindrical drill bit 4 along the heat dissipation water guide groove 13, so as to cool the inner wall of the cylindrical drill bit 4.

[0023] The plate clamping mechanism 8 is fixedly arranged on the side wall of the frame 1, and the plate clamping mechanism 8 is located below the cylindrical drill bit 4. The plate clamping mechanism 8 includes a clamping platform 81 fixedly arranged on the side wall of the frame 1, and a movable seat 82 is arranged on the upper surface of the clamping platform 81. A first screw set 83 threadedly connected to the movable seat 82 is provided inside the clamping platform 81 for rotation. Two clamping plates 84 are symmetrically arranged on the top of the movable seat 82, and a second screw set 85 threadedly connected to the two clamping plates 84 is arranged inside the movable seat 82. The two clamping plates 84 are both L-shaped structures, and the two clamping plates 84 are The movable seat 82 is arranged in opposite distribution, and a discharge groove is provided on the upper surface of the movable seat 82. The discharge groove can not only discharge the used cooling water, but also facilitate the discharge of the debris generated by drilling. The marble slab is placed on the two clamps 84 on the top of the movable seat 82, and the second screw set 85 is turned by hand to make the two clamps 84 move relatively close and clamp the two sides of the marble slab. This process requires manual adjustment of the marble slab for longitudinal position adjustment, and then, the first screw set 83 is turned by hand to make the movable seat 82 move on the surface of the clamping platform 81, so that the marble slab can move in the lateral position.

[0024] The wireless communication module 9 is fixedly arranged on the side wall of the frame 1, and the wireless communication module 9 adopts a Bluetooth communication module; the PLC controller 10 is fixedly arranged on the side wall of the frame 1, and the lifting seat 2, the drilling rig 3, the plate hardness detection mechanism 5, the pressure detection mechanism 6, the cooling mechanism 7 and the wireless communication module 9 are all electrically connected to the PLC controller 10.

[0025] The operating principle of the present invention is described as follows: the staff first turns on the power of the device, and then operates the PLC controller 10, so that the PLC controller 10 supplies power to the electromagnetic block 113 through the control circuit. When current is passed through the electromagnetic block 113, a repulsive magnetic force is generated inside. This repulsive magnetic force pushes the permanent magnet block 112 to overcome the elastic force of the second spring 115 and move, so that one end of the positioning rod 114 is inserted into the interior of the telescopic sleeve 52 and plugged into the positioning groove on the side wall of the slider 53. At this time, the positioning of the slider 53, the telescopic rod 55 and the wireless Brinell hardness tester 51 is completed; The staff takes out the marble slab to be processed, then cleans the surface of the marble slab and accurately marks the drilling position on the marble slab with a pencil or masking paper, and then places the marble slab on the two clamping plates 84 on the top of the movable seat 82. Next, the second screw set 85 is turned by hand, so that the two clamping plates 84 move relatively close and clamp the two sides of the marble slab. At the same time, the first screw set 83 is turned by hand, so that the movable seat 82 moves on the surface of the clamping platform 81, so that the marked position of the marble slab is aligned with the cylindrical drill bit 4, thereby completing the clamping and fixing of the marble slab. The marble slab can be adjusted horizontally by the first screw set 83. Before clamping, the staff can adjust the longitudinal position by moving the marble slab by hand, and finally the marked position of the marble slab is aligned with the cylindrical drill bit 4; After positioning and clamping, the staff manually operates the PLC controller 10, and the PLC controller 10 controls the lifting seat 2 to move downward, so that the drill rig 3 and the cylindrical drill bit 4 move downward and approach the surface of the marble slab, until the wireless Brinell hardness tester 51 at the lower end of the cylindrical drill bit 4 contacts the surface of the marble slab. When the pressure head of the wireless Brinell hardness tester 51 is about to contact the surface of the marble slab, the internal system of the wireless Brinell hardness tester 51 enters the precision control stage, and monitors the pressure change between the pressure head and the marble slab in real time. When the pressure reaches the initial test force required by the Brinell hardness test, the wireless Brinell hardness tester 51 immediately feeds back an electrical signal to the PLC controller 10 through the wireless communication module 9. The wireless communication module 9 adopts The Bluetooth signal transmitting module and the PLC controller 10 are equipped with a built-in Bluetooth signal receiving module, so that the PLC controller 10 accurately controls the lifting seat 2 to stop moving downward. At this time, the indenter of the wireless Brinell hardness tester 51 is in close contact with the surface of the marble slab, and the applied force meets the test standard. After the indenter of the wireless Brinell hardness tester 51 contacts the marble slab and reaches the initial test force, the lifting seat 2 needs to maintain this position so that the indenter of the wireless Brinell hardness tester 51 continues to act on the surface of the marble slab under the prescribed test force. The pressure holding time is usually maintained at 10 to 15 seconds, so that the surface of the marble slab gradually forms an indentation under the pressure. After the pressure holding is completed, the PLC controller 10 controls the lifting seat 2 to slowly and steadily retract upward. , driving the wireless Brinell hardness tester 51 away from the surface of the marble slab. After that, the built-in measuring system of the wireless Brinell hardness tester 51 will measure and analyze the indentation to obtain the Brinell hardness value of the marble slab, and send the data to the PLC controller 10 through the wireless communication module 9. At this time, the built-in program of the PLC controller 10 will automatically control the drilling power of the drill rig 3 according to the Brinell hardness value, so that the power of the drill rig 3 can be adjusted according to the hardness values ​​of different types of marble slabs, avoiding the phenomenon that the cylindrical drill bit 4 causes cracks to the marble slab due to excessive power of the drill rig 3, reducing the production cost and improving the production efficiency. It should be emphasized that in order to improve the hardness of the marble slab by the wireless Brinell hardness tester 51 The hardness value can be accurately detected, and the marble slab can be detected at multiple points. After completing the detection of one point, the staff can manually rotate the first screw kit 83 to drive the marble slab on the surface of the moving seat 82 to move horizontally and adjust, and complete the detection of at least three points. The internal program of the PLC controller 10 calculates the average value based on the three detection values ​​to improve the hardness detection accuracy of the marble slab. After calculating the hardness value, the PLC controller 10 automatically completes the threshold setting of the wireless pressure sensor 61 through the internal program. For example: for snowflake white marble, the hardness value is 3.2-3.8, then the lower limit threshold of the wireless pressure sensor 61 is 550N, and the upper limit threshold of the wireless pressure sensor 61 is 850N; When the hardness value detection is completed, the staff operates the PLC controller 10 by hand, and the PLC controller 10 disconnects the power supply of the electromagnetic block 113 and the power supply of the wireless Brinell hardness tester 51 through the control circuit. The internal current of the electromagnetic block 113 is disconnected, which causes its own magnetic force to disappear. At this time, the permanent magnet block 112 moves under the elastic force of the second spring 115 and drives the positioning rod 114 to move out of the positioning groove on the slider 53, thereby releasing the positioning of the slider 53, the telescopic rod 55 and the wireless Brinell hardness tester 51. At the same time, the staff rotates the second screw rod set 85 by hand to align the marked position of the marble slab on the moving seat 82 with the cylindrical drill bit 4. The staff then manually operates the PLC controller 10 to start the lifting seat 2 and the drilling machine 3, so that the cylindrical drill bit 4 on the rotating shaft of the drilling machine 3 is close to the marked position of the marble plate, and the wireless Brinell hardness tester 51 is pressed into the inside of the cylindrical drill bit 4 when it contacts the surface of the marble plate. During the process of rotating and drilling according to the set power, as the cylindrical drill bit 4 continues to move downward, and the wireless Brinell hardness tester 51 is continuously pushed upward, the telescopic rod 55 drives the slider 53 to move upward and compress the first spring 54, so that the wireless Brinell hardness tester 51 has a tendency to push the drilling residue downward; During the drilling process, the tubular drill bit 4 can throw the wireless pressure sensor 61 and the ejection plate 62 out of the installation slot due to the centrifugal force, and the ejection plate 62 can overcome the elastic force of the third spring 63 and move. The wireless pressure sensor 61 will contact the inner wall of the drill hole when being thrown out, and can detect the extrusion size between the tubular drill bit 4 and the hole wall in real time. If the pressure value detected by the wireless pressure sensor 61 exceeds the threshold value set in the PLC controller 10 due to uneven marble material or large wear of the tubular drill bit 4, and the pressure value exceeds the lower threshold value or the upper threshold value, the wireless pressure sensor 61 will feed back an electrical signal to the PLC controller 10 through the wireless communication module 9, so that the PLC controller 10 controls and adjusts the power of the tubular drill bit 4 accordingly, so as to avoid the phenomenon that the marble slab is cracked due to the tubular drill bit 4 rotating too fast or too slow, thereby improving the quality and efficiency of drilling and reducing the production cost. When the PLC controller 10 starts the lifting seat 2 and the drilling machine 3, it will also control the water pump 72 to start working. The water pump 72 can suck the cooling water in the water tank 71 into the inside of the soft water pipe 73, and then discharge it into the inside of the annular pipe 74, and finally spray it on the top of the cylindrical drill bit 4 through multiple water outlet holes 76, so that the cooling water flows down the circumferential wall of the cylindrical drill bit 4 and falls on the position of the drill hole, so that the outer wall of the cylindrical drill bit 4 can be cooled and cooled to avoid the cylindrical drill bit 4 from being worn out. When the cooling water is sprayed on the top of the cylindrical drill bit 4, a small amount of the cooling water will enter the inside of the cylindrical drill bit 4 through the water inlet hole 12, and the cooling water will enter the inner wall of the cylindrical drill bit 4 along the heat dissipation water guide groove 13, so that the inner wall of the cylindrical drill bit 4 can be cooled and cooled, thereby improving the cooling effect; Since the squeezing force between the cylindrical drill bit 4 and the hole wall can be detected in real time, the PLC controller 10 can adjust the power of the water pump 72 according to the size of the detection value. If the detection value is larger, it means that the wear of the cylindrical drill bit 4 is serious. At this time, increasing the power of the water pump 72 can spray more cooling water on the surface of the cylindrical drill bit 4. If the detection value is smaller, the power of the water pump 72 can be appropriately reduced to reduce the use of water and avoid energy waste. After the PLC controller 10 controls the lifting seat 2 to move down to a certain distance, it indicates that the drilling is completed, and the PLC controller 10 will automatically control the lifting seat 2 to move upward. At this time, the drilled excess material will be automatically pushed out from the inside of the cylindrical drill bit 4 by the wireless Brinell hardness tester 51 under the elastic force of the first spring 54, without the need for the staff to manually take out the material, thereby improving the drilling efficiency. Afterwards, the staff adjusts the position of the marble slab for the next drilling operation.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling device for building material boards, comprising a frame (1), a lifting seat (2), a drill (3) and a cylindrical drill bit (4), wherein the lifting seat (2) is arranged on the top side wall of the frame (1), the drill (3) is arranged inside the lifting seat (2), and the rotating shaft of the drill (3) is arranged downwardly, and the cylindrical drill bit (4) is arranged on the rotating shaft of the drill (3), characterized in that: The drilling machine also comprises: a plate hardness detection mechanism (5) arranged inside the cylindrical drill bit (4), and the detection end of the plate hardness detection mechanism (5) extends to the outside of the cylindrical drill bit (4); two pressure detection mechanisms (6) symmetrically arranged on the outer walls of both sides of the cylindrical drill bit (4) for detecting the hole wall pressure of the plate; a cooling mechanism (7) arranged on the rotating shaft of the drilling machine (3), and the cooling mechanism (7) sprays water toward the cylindrical drill bit (4) for cooling; and a plate clamping mechanism (8) , fixedly arranged on the side wall of the frame (1), and the plate clamping mechanism (8) is located below the cylindrical drill bit (4); a wireless communication module (9), fixedly arranged on the side wall of the frame (1); a PLC controller (10), fixedly arranged on the side wall of the frame (1), and the lifting seat (2), the drilling machine (3), the plate hardness detection mechanism (5), the pressure detection mechanism (6), the cooling mechanism (7) and the wireless communication module (9) are all electrically connected to the PLC controller (10).

2. A drilling device for building material board according to claim 1, characterized in that: The plate hardness detection mechanism (5) comprises a wireless Brinell hardness tester (51); a telescopic sleeve (52) is fixedly provided on the inner wall of the top of the tubular drill bit (4); a slider (53) is provided inside the telescopic sleeve (52); a first spring (54) is fixedly provided between the top of the slider (53) and the top of the telescopic sleeve (52); a telescopic rod (55) is fixedly provided at the bottom of the slider (53); the lower end of the telescopic rod (55) extends to the outside of the telescopic sleeve (52) and is fixedly connected to the wireless Brinell hardness tester (51); and an electromagnetic positioning mechanism (11) pluggable and matched with the slider (53) is provided on the side wall of the telescopic sleeve (52).

3. A drilling device for building material board according to claim 2, characterized in that: The electromagnetic positioning mechanism (11) comprises a positioning sleeve (111) fixedly arranged on the side wall of the telescopic sleeve (52); a permanent magnet block (112) is slidably arranged inside the positioning sleeve (111) in a transverse manner; an electromagnetic block (113) is fixedly arranged on the inner side wall of the positioning sleeve (111); a positioning rod (114) is fixedly arranged on a side of the permanent magnet block (112) away from the electromagnetic block (113); an end of the positioning rod (114) away from the permanent magnet block (112) extends to the outside of the positioning sleeve (111); a positioning groove is formed on the side wall of the slider (53) to match one end of the positioning rod (114); a second spring (115) is sleeved on the rod wall of the positioning rod (114); and two ends of the second spring (115) are respectively fixedly connected to the side wall of the slider (53) and the inner wall of the positioning sleeve (111).

4. A drilling device for building material board according to claim 1, characterized in that: The pressure detection mechanism (6) comprises a wireless pressure sensor (61); a mounting groove is provided on the side wall of the cylindrical drill bit (4); and a push-out plate (62) is provided in the lateral sliding manner of the mounting groove; a third spring (63) is fixedly provided between one side of the push-out plate (62) and the interior of the mounting groove; and the other side of the push-out plate (62) is fixedly connected to the wireless pressure sensor (61); limit blocks (64) are fixedly provided on the upper and lower sides of the push-out plate (62); and limit grooves matching the limit blocks (64) are provided at the top and bottom of the mounting groove of the cylindrical drill bit (4).

5. A drilling device for building material board according to claim 1, characterized in that: The cooling mechanism (7) comprises a water tank (71) fixedly arranged on the side wall of the frame (1), a water pump (72) fixedly arranged inside the water tank (71), a soft water pipe (73) extending downwardly fixedly arranged at the output end of the water pump (72), an annular pipe (74) is arranged outside the rotating shaft of the drilling rig (3), and the annular pipe (74) is connected to the soft water pipe (73), L-shaped connecting rods (75) are fixedly arranged on both sides of the top of the annular pipe (74), one end of the two L-shaped connecting rods (75) away from the annular pipe (74) is fixedly connected to the side wall of the rotating shaft protective sleeve of the drilling rig (3), and the inner side wall of the annular pipe (74) is provided with a plurality of evenly distributed water outlet holes (76).

6. A drilling device for building material board according to claim 1, characterized in that: A plurality of evenly distributed water inlet holes (12) are formed around the top of the cylindrical drill bit (4), and a plurality of evenly distributed heat dissipation water guide grooves (13) are formed on the inner side wall of the cylindrical drill bit (4), wherein the positions of the plurality of heat dissipation water guide grooves (13) correspond to the positions of the plurality of water inlet holes (12) in a one-to-one distribution.

7. A drilling device for building material board according to claim 1, characterized in that: The plate clamping mechanism (8) comprises a clamping platform (81) fixedly arranged on the side wall of the frame (1); a movable seat (82) is provided on the upper surface of the clamping platform (81); a first screw rod set (83) threadedly connected to the movable seat (82) is rotatably provided inside the clamping platform (81); two clamping plates (84) are symmetrically provided on the top of the movable seat (82); and a second screw rod set (85) threadedly connected to the two clamping plates (84) is provided inside the movable seat (82).

8. A drilling device for building material board according to claim 7, characterized in that: The two clamping plates (84) both adopt an L-shaped structure, and the two clamping plates (84) are arranged in an opposite distribution, and a material discharge groove is provided on the upper surface of the movable seat (82).

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