Improved building board drilling machining device

Abstract

The invention relates to an improved building board drilling machining device. Compared with the prior art, the device is provided with a machine tool, the machine tool comprises a concentric-square-shaped plate, a plurality of supporting rods are installed in the concentric-square-shaped plate, T-shaped open grooves are formed in the left side and the right side of the concentric-square-shaped plate correspondingly, a U-shaped plate is arranged above the concentric-square-shaped plate, and the two arms of the U-shaped plate are slidably connected with the two T-shaped open grooves correspondingly; a moving mechanism used for moving the U-shaped plate is arranged in the concentric-square-shaped plate, a pneumatic drilling machine is arranged on the front side of the U-shaped plate, and a drill bit is installed at the lower end of the pneumatic drilling machine. And the positioning mechanism is used for moving and positioning the pneumatic drilling machine, the positioning mechanism comprises a following plate, and the two ends of the following plate penetrate through the two T-shaped open grooves correspondingly and are fixedly connected with the two arms of the U-shaped plate. When the improved plate drilling device is used for drilling an improved plate, the stress balance of the plate is kept, the deformation condition is avoided, drilling meets the specification, and during drilling, the periphery of the lower side of a hole is limited, so that burrs do not appear in the hole.

Description

Technical Field

[0001] The invention relates to the field of plate processing, in particular to an improved building plate drilling processing device. Background Art

[0002] As is known, a plate is a flat rectangular building material plate made of standard size, which is used in the construction industry to make components of walls, ceilings or floors. It also refers to a metal plate made by forging, rolling or casting, which is divided into thin plates, medium plates, thick plates, extra-thick plates, and is usually made into a flat rectangular building material plate of standard size. Improved plates usually refer to plates that have been technically improved or new materials have been applied on the basis of the original plates, thereby improving performance, durability, environmental protection or aesthetics, including composite plates, waterproof plates, high-strength plates, environmental protection plates and sound insulation plates. When drilling holes in improved plates, on the one hand, the plates are drilled manually using an electric drill or a hand tool. On the other hand, for some thinner plates, they are quickly punched directly by a punch press. When drilling holes in large quantities of plates, most of them are drilled by CNC machine tools.

[0003] However, when drilling holes in the improved plate using a CNC machine, the plate is placed directly on the machine and then drilled using a drill bit. Due to the relatively fragile structure of some plates, burrs are easily generated on the lower edge of the holes when drilling. Moreover, when the plate structure is relatively fragile, the drill bit will exert pressure on the plate when drilling, causing the plate to deform during the drilling process, and the deformation of the drilled holes does not meet the specifications. Moreover, when using drill bits of different specifications to drill holes in the plate, the pressure exerted by the drill bit on the plate is also different, resulting in different forces on some of the drilled plates, and the drilled holes are significantly different from the specifications.

[0004] Therefore, based on the above problems, we have invented an improved building board drilling processing device. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an improved building board drilling processing device, which has the advantages of no deformation of the board and no burrs on the holes when drilling holes, and solves a series of problems such as burrs easily appearing on the edges of the board when drilling holes, deformation of the board during the drilling process, and drilled holes not meeting the specifications.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an improved building board drilling processing device, comprising a machine tool, the machine tool comprising a return plate, a plurality of support rods are installed in the return plate, T-shaped slots are arranged on the left and right sides of the return plate, a U-shaped plate is arranged above the return plate, two arms of the U-shaped plate are respectively slidably connected with two T-shaped slots, a moving mechanism for moving the U-shaped plate is arranged in the return plate, a pneumatic drill is arranged on the front side of the U-shaped plate, and a drill bit is installed at the lower end of the pneumatic drill;

[0007] The positioning mechanism is used to move and position the pneumatic drilling rig, and the positioning mechanism includes a follower plate, two ends of the follower plate respectively pass through two T-shaped slots and are fixedly connected to the two arms of the U-shaped plate, the U-shaped plate and the follower plate are both provided with grooves, and the two grooves are rotatably connected with a second threaded rod, one end of the two second threaded rods are rotatably passed through the U-shaped plate and are transmission-connected through the second transmission mechanism, and the side wall of the U-shaped plate is fixedly connected with a second motor, and the driving shaft of the second motor is rotatably passed through the U-shaped plate and is coaxially fixedly connected to the second threaded rod, the two second threaded rods are externally threadedly sleeved with threaded blocks, the two threaded blocks are respectively slidably connected to the inner side walls of the two grooves, the U-shaped plate is slidably connected to a U-shaped slider on the outside, the pneumatic drilling rig is installed on the U-shaped slider, the front end of the follower plate is slidably connected to a positioning plate, and the two threaded blocks are respectively fixedly connected to the positioning plate and the U-shaped slider;

[0008] The synchronous supporting mechanism is used to support the plate, and the synchronous supporting mechanism includes a supporting member arranged above the positioning plate, the supporting member and the positioning plate are fixedly connected by a bellows, an inflation chamber and an adjusting chamber are arranged in the positioning plate, the inflation chamber and the adjusting chamber are communicated with each other by an electric one-way valve, the inflation chamber is associated with a pneumatic drilling rig, the adjusting chamber is connected with the bellows, the two adjusting plates are sealingly and slidably connected in the adjusting chamber, the side walls opposite to each other of the two adjusting plates are fixedly connected with a third threaded rod, one end of the two third threaded rods away from the adjusting plate both slides through the positioning plate, the outer surfaces of the two third threaded rods are threadedly sleeved with a threaded sleeve, the two threaded sleeves are rotatably connected to the positioning plate, the positioning plate is rotatably penetrated by a rotating shaft, the rotating shaft and the two threaded sleeves are transmission-connected by a third transmission mechanism, the side walls of the positioning plate are fixedly connected with a third motor, and the third motor is coaxially and fixedly connected with the drive shaft.

[0009] Preferably, the moving mechanism includes two first threaded rods which are rotatably connected to the inner walls of the two T-shaped slots respectively, one end of the two first threaded rods rotates through the return plate and is connected through a first transmission mechanism, the side wall of the return plate is fixedly connected to a first motor, and the drive shaft of the first motor rotates through the return plate and is coaxially fixedly connected to one of the first threaded rods.

[0010] Preferably, the first transmission mechanism includes two first pulleys, the two first pulleys are coaxially fixedly connected to the two first threaded rods respectively, and the two first pulleys are connected via a synchronous belt transmission.

[0011] Preferably, the second transmission mechanism comprises two second pulleys, the two second pulleys are coaxially fixedly connected to the two second threaded rods respectively, and the two second pulleys are connected via a synchronous belt transmission.

[0012] Preferably, the third transmission mechanism comprises a third pulley and a fourth pulley, the third pulley is coaxially fixedly connected to the rotating shaft, the fourth pulley is coaxially fixedly connected to the threaded sleeve, and the third pulley and the fourth pulley are connected via a synchronous belt transmission.

[0013] Preferably, the drill bit includes a mounting column and a drilling head, a buffer groove is provided in the mounting column, a buffer plate is slidably connected in the buffer groove, the drilling head is fixedly mounted on the buffer plate, a limit rod is slidably passed through the buffer plate, both ends of the limit rod are fixedly connected to the inner side wall of the buffer groove, a spring is provided on the outer sleeve of the limit rod, both ends of the spring are respectively fixedly connected to the buffer groove and the buffer plate, and a contact plate is fixedly connected to the top of the buffer groove.

[0014] Preferably, the supporting member comprises a base plate, a swivel and a fixing ring, the upper and lower ends of the swivel are rotatably connected to the base plate and the fixing ring respectively, the base plate and the fixing ring are fixedly connected by two connecting plates, the side wall of the fixing ring is fixedly connected to a fourth motor, the driving shaft of the fourth motor is coaxially fixedly connected to a gear, the side wall of the swivel is provided with an annular tooth groove meshing with the gear, the fixing ring is penetrated by a plurality of finger center holes, and a plurality of sliding rods are slidably connected in the plurality of finger center holes, the swivel is penetrated by a plurality of eccentric holes, the plurality of eccentric holes respectively correspond to the plurality of finger center holes one by one, the lower ends of the plurality of sliding rods respectively extend to the plurality of eccentric holes and are arranged, the upper end of the fixing ring is rotatably connected to a plurality of contraction plates, one of the contraction plates is embedded with a pressure sensor, the plurality of contraction plates respectively correspond to the plurality of finger center holes one by one, the contraction plate is provided with tangent holes, and the upper ends of the plurality of sliding rods respectively extend to the plurality of tangent holes and are arranged.

[0015] Preferably, the shrinkage plate is configured in a special shape, a first step is provided at the upper end of the shrinkage plate connected to the fixing ring, a second step is provided at the lower end of the shrinkage plate away from the connection part with the fixing ring, and the first step matches the second step.

[0016] Preferably, the external threads of the two third threaded rods have opposite rotation directions.

[0017] Preferably, a level is provided inside the circular plate, a transmitter and a receiver of the level are respectively arranged on the front and rear sides of the circular plate, and a magnet is embedded in the level.

[0018] Compared with the prior art, the present invention provides an improved building board drilling processing device, which has the following beneficial effects:

[0019] 1. An improved building board drilling processing device. During the process of drilling holes in the board, the pneumatic drill drives the drill bit to press down. Since the inflation chamber is associated with the pneumatic drill, as the air pressure of the pneumatic drill increases, the air pressure in the inflation chamber and the adjustment chamber also increases. The air in the inflation chamber props up the bottom plate through the bellows, and the bottom plate drives multiple shrinkage plates to press the board tightly through the rotating ring and the fixed ring. When the drill bit is pressed down, the pressure on the board increases, and the pressure sensor changes. At this time, the third motor drives the rotating shaft to rotate, and the rotating shaft drives the two threaded sleeves to rotate. The two threaded sleeves drive the two adjustment plates to move relative to each other. The two adjustment plates compress the air in the adjustment chamber, thereby changing the supporting force of the shrinkage plate on the board, so that the supporting force of the shrinkage plate on the board is balanced with the pressure of the drill bit on the board, ensuring that the board will not be deformed during drilling and that the drilled holes meet the specifications.

[0020] 2. This improved building board drilling processing device, when using drill bits of different specifications to drill holes in the board, drives the gear to rotate through the fourth motor, and the gear drives the rotating ring to rotate. At this time, multiple slide bars move along the finger center hole under the push of multiple eccentric holes, and the slide bars drive the shrinkage plate to rotate during the movement. At this time, the multiple shrinkage plates shrink and expand, thereby changing the gap formed between the multiple shrinkage plates. The gap between the shrinkage plates can be adjusted according to drill bits of different specifications, so that the gap between the shrinkage plates is equivalent to the diameter of the drill hole. At this time, the shrinkage plate is attached to the edge of the drill hole. When drilling, under the tight action of the shrinkage plate, no burrs will appear at the lower end of the hole.

[0021] When drilling holes in the improved plate, the present invention maintains balanced force on the plate, does not cause deformation, and the drilled holes meet specifications. Moreover, when drilling holes, the lower side of the holes is limited, and no burrs appear on the holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0023] Figure 2 It is a top view of the structure of the first embodiment of the present invention;

[0024] Figure 3 is a structural perspective view of a drill bit in Embodiment 1 of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the synchronous support mechanism in the first embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the support member in the first embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the shrinkage plate in the first embodiment of the present invention;

[0028] Figure 7 It is a structural perspective view of a positioning plate in Embodiment 1 of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the bellows in the first embodiment of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0031] In the figure: 1. return plate; 2. support rod; 3. T-shaped slot; 4. U-shaped plate; 5. moving mechanism; 6. pneumatic drill; 7. drill bit; 8. positioning mechanism; 9. follower plate; 10. groove; 11. second threaded rod; 12. second transmission mechanism; 13. second motor; 14. threaded block; 15. U-shaped slider; 16. positioning plate; 17. synchronous support mechanism; 18. support member; 19. bellows; 20. inflation chamber; 21. regulating chamber; 22. electric one-way valve; 23. regulating plate; 24. third threaded rod; 25. threaded sleeve; 26. rotating shaft; 27. third transmission mechanism; 28. third Motor; 29. ​​First threaded rod; 30. First transmission mechanism; 31. First motor; 32. First pulley; 33. Second pulley; 34. Third pulley; 35. Fourth pulley; 36. Mounting column; 37. Drilling head; 38. Buffer groove; 39. Buffer plate; 40. Limit rod; 41. Spring; 42. Contact plate; 43. Bottom plate; 44. Swivel; 45. Fixed ring; 46. Connecting plate; 47. Fourth motor; 48. Gear; 49. Finger hole; 50. Sliding rod; 51. Eccentric hole; 52. Retraction plate; 53. Tangent hole; 54. First step; 55. Second step; 56. Level. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes an improved building board drilling processing device.

[0034] Embodiment 1

[0035] like Figure 1-8 As shown, an improved building board drilling processing device comprises:

[0036] A machine tool, which includes a return plate 1, in which multiple support rods 2 are installed, and T-shaped slots 3 are provided on the left and right sides of the return plate 1. A U-shaped plate 4 is provided above the return plate 1, and the two arms of the U-shaped plate 4 are respectively slidably connected to the two T-shaped slots 3. The return plate 1 is provided with a moving mechanism 5 for moving the U-shaped plate 4. It should be noted that the moving mechanism 5 includes two first threaded rods 29 that are respectively rotatably connected to the inner walls of the two T-shaped slots 3, and one end of the two first threaded rods 29 rotates through the return plate 1 and is connected through a first transmission mechanism 30. It should be noted that the first transmission mechanism 30 includes two first pulleys 32, and the two first pulleys 32 are respectively coaxially fixedly connected to the two first threaded rods 29, and the two first pulleys 32 are connected through a synchronous belt transmission.

[0037] In the present invention, a first motor 31 is fixedly connected to the side wall of the U-shaped plate 1, a driving shaft of the first motor 31 rotates and passes through the U-shaped plate 1 and is coaxially fixedly connected to one of the first threaded rods 29, a pneumatic drill 6 is provided on the front side of the U-shaped plate 4, a drill bit 7 is installed at the lower end of the pneumatic drill 6, it should be noted that the drill bit 7 includes a mounting column 36 and a drilling head 37, a buffer groove 38 is provided in the mounting column 36, a buffer plate 39 is slidably connected in the buffer groove 38, the drilling head 37 is fixedly installed on the buffer plate 39, the buffer plate 39 slides through a limit rod 40, both ends of the limit rod 40 are fixedly connected to the inner side wall of the buffer groove 38, a spring 41 is provided on the outer sleeve of the limit rod 40, both ends of the spring 41 are fixedly connected to the buffer groove 38 and the buffer plate 39 respectively, and a contact plate 42 is fixedly connected to the top of the buffer groove 38.

[0038] The positioning mechanism 8 is used to move and position the pneumatic drill 6. The positioning mechanism 8 includes a follower plate 9. The two ends of the follower plate 9 pass through the two T-shaped slots 3 and are fixedly connected to the two arms of the U-shaped plate 4. The U-shaped plate 4 and the follower plate 9 are both provided with grooves 10. The two grooves 10 are both rotatably connected with second threaded rods 11. One end of the two second threaded rods 11 rotates through the U-shaped plate 4 and is connected through the second transmission mechanism 12. Further, the second transmission mechanism 12 includes two second pulleys 33. The two second pulleys 33 are coaxially fixedly connected to the two second threaded rods 11, respectively. The second pulleys 33 are connected through a synchronous belt transmission, the side wall of the U-shaped plate 4 is fixedly connected with a second motor 13, the driving shaft of the second motor 13 rotates and penetrates the U-shaped plate 4 and is coaxially fixedly connected with the second threaded rod 11, the two second threaded rods 11 are both threadedly sleeved with threaded blocks 14 on the outside, and the two threaded blocks 14 are respectively slidably connected with the inner side walls of the two grooves 10, the U-shaped plate 4 is slidably connected with a U-shaped slider 15 on the outside, the pneumatic drill 6 is installed on the U-shaped slider 15, and the front end of the follower plate 9 is slidably connected with a positioning plate 16, and the two threaded blocks 14 are respectively fixedly connected with the positioning plate 16 and the U-shaped slider 15;

[0039] Through the above technical features, the two first threaded rods 29 are driven to rotate by the first motor 31, and the two first threaded rods 29 drive the U-shaped plate 4 to move forward and backward, and the U-shaped plate 4 drives the pneumatic drill 6 to move forward and backward. At the same time, the two second threaded rods 11 are driven to rotate by the second motor 13, and the two second threaded rods 11 respectively drive the positioning plate 16 and the U-shaped slide plate 15 to move through the two threaded blocks 14, the U-shaped slide plate 15 drives the pneumatic drill 6 to move, and the positioning plate 16 drives the retracting plate 52 to move, so that the positioning plate 16 and the drill bit 7 can move synchronously, and synchronous support can be performed when drilling holes in the plate.

[0040] The synchronous support mechanism 17 is used to support the plate. The synchronous support mechanism 17 includes a support member 18 arranged above the positioning plate 16. It should be noted that the support member 18 includes a bottom plate 43, a rotating ring 44 and a fixed ring 45. The upper and lower ends of the rotating ring 44 are rotatably connected to the bottom plate 43 and the fixed ring 45 respectively. The bottom plate 43 and the fixed ring 45 are fixedly connected by two connecting plates 46. The side wall of the fixed ring 45 is fixedly connected to a fourth motor 47. The drive shaft of the fourth motor 47 is coaxially fixedly connected to a gear 48. The side wall of the rotating ring 44 is provided with a gear meshing with the gear 48. Annular tooth groove, a plurality of finger holes 49 are penetrated on the fixed ring 45. It should be noted that the transverse head-to-tail line of the finger holes 49 is toward the central axis of the fixed ring 45. The plurality of finger holes 49 are distributed on the fixed ring 45 in a circular array. Slide rods 50 are slidably connected in the plurality of finger holes 49. A plurality of eccentric holes 51 are penetrated on the swivel ring 44. It should be noted that the angle between the transverse head-to-tail line of the eccentric holes 51 and the radial line of the swivel ring 44 is an acute angle. The plurality of eccentric holes 51 are distributed on the swivel ring 44 in a circular array. The plurality of eccentric holes 51 correspond one-to-one to the plurality of finger holes 49 respectively.

[0041] In the present invention, the lower ends of the plurality of slide bars 50 are respectively extended to the plurality of eccentric holes 51, and the upper end of the fixed ring 45 is rotatably connected to a plurality of contraction plates 52. It should be noted that the contraction plates 52 are arranged in a special shape, and the upper end of the connection part of the contraction plate 52 and the fixed ring 45 is provided with a first step 54, and the lower end of the contraction plate 52 away from the connection part of the fixed ring 45 is provided with a second step 55, and the first step 54 matches the second step 55. A pressure sensor is embedded in one of the contraction plates 52, and the plurality of contraction plates 52 correspond to the plurality of finger holes 49 one by one. The contraction plate 52 is provided with a tangent hole 53. It should be noted that It is clear that the transverse head-to-tail connecting line of the tangent hole 53 points to the direction in which the contraction plate 52 is connected to the fixing ring 45, and the upper ends of the plurality of sliding rods 50 extend to the plurality of tangent holes 53 respectively. The support member 18 and the positioning plate 16 are fixedly connected by a bellows 19, and an inflation chamber 20 and an adjusting chamber 21 are provided in the positioning plate 16. It should be noted that both the inflation chamber 20 and the adjusting chamber 21 are provided with a pressure relief valve, and the inflation chamber 20 and the adjusting chamber 21 are connected by an electric one-way valve 22. It should be noted that the electric one-way valve 22 flows from the inflation chamber 20 to the adjusting chamber 21, and the inflation chamber 20 is associated with the pneumatic drilling rig 6.

[0042] In the present invention, the adjusting chamber 21 is connected with the bellows 19, and the two adjusting plates 23 are sealed and slidably connected in the adjusting chamber 21. The side walls opposite to each other of the two adjusting plates 23 are fixedly connected with third threaded rods 24. It is worth mentioning that the external threads of the two third threaded rods 24 are in opposite directions, and the ends of the two third threaded rods 24 away from the adjusting plates 23 are both slidably penetrated through the positioning plate 16. The external threads of the two third threaded rods 24 are both threadedly sleeved with threaded sleeves 25, and the two threaded sleeves 25 are rotatably connected to the positioning plate 16. The positioning plate 16 is The rotating shaft 26 is provided through the rotation plate 16, and the rotating shaft 26 and the two threaded sleeves 25 are connected to each other through a third transmission mechanism 27. Further, the third transmission mechanism 27 includes a third pulley 34 and a fourth pulley 35. The third pulley 34 is coaxially fixedly connected to the rotating shaft 26, and the fourth pulley 35 is coaxially fixedly connected to the threaded sleeve 25. The third pulley 34 and the fourth pulley 35 are connected to each other through a synchronous belt transmission. The side wall of the positioning plate 16 is fixedly connected to a third motor 28, and the third motor 28 is coaxially fixedly connected to the driving shaft.

[0043] Through the above technical features, in the process of drilling holes in the plate, the pneumatic drill 6 drives the drill bit 7 to press down. Since the inflation chamber 20 is associated with the pneumatic drill 6, as the air pressure of the pneumatic drill 6 increases, the air pressure in the inflation chamber 20 and the adjusting chamber 21 also increases. The air in the inflation chamber 20 props up the bottom plate 43 through the bellows 19, and the bottom plate 43 drives the multiple contraction plates 52 to press the plate tightly through the rotating ring 44 and the fixed ring 45. When the drill bit 7 is pressed down, the pressure on the plate increases, and the pressure sensor changes at this time. At this time, the third motor 28 drives the rotating shaft 26 to rotate, and the rotating shaft 26 drives the two threaded sleeves 25 to rotate. The two threaded sleeves 25 drive the two adjusting plates 23 to move relative to each other through the third threaded rod 24. The two adjusting plates 23 compress the air in the adjusting chamber 21, thereby changing the supporting force of the contraction plate 52 on the plate, so that the supporting force of the contraction plate 52 on the plate is balanced with the pressure of the drill bit 7 on the plate, and the plate will not be deformed when drilling.

[0044] Working principle: the fourth motor 47 drives the gear 48 to rotate, and the gear 48 drives the swivel 44 to rotate. At this time, the multiple sliding rods 50 move along the finger center hole 49 under the push of the multiple eccentric holes 51. The sliding rod 50 drives the contraction plate 52 to rotate during the movement. At this time, the multiple contraction plates 52 are contracted and expanded, thereby changing the gap formed between the multiple contraction plates 52. The gap between the contraction plates 52 can be adjusted according to the drill bits 7 of different specifications, so that the gap between the contraction plates 52 is equivalent to the diameter of the drill hole. At this time, the two first threaded rods 29 are driven to rotate by the first motor 31, and the two first threaded rods 29 drive the U-shaped plate 4 to move back and forth, and the U-shaped plate 4 drives the pneumatic drill 6 to move back and forth. At the same time, the two second threaded rods 11 are driven to rotate by the second motor 13, and the two second threaded rods 11 respectively drive the positioning plate 16 and the U-shaped slide plate 15 to move through the two threaded blocks 14, and the U-shaped slide plate 15 drives the pneumatic drill 6 to move, and the positioning plate 16 drives The movement of the shrinking plate 52 can make the positioning plate 16 and the drill bit 7 move synchronously until they are in the appropriate position. In the process of drilling holes in the plate, the pneumatic drill 6 drives the drill bit 7 to press down. Since the air chamber 20 is associated with the pneumatic drill 6, as the air pressure of the pneumatic drill 6 increases, the air pressure in the air chamber 20 and the adjusting chamber 21 also increases. The air in the air chamber 20 props up the bottom plate 43 through the bellows 19, and the bottom plate 43 drives the multiple shrinking plates 52 to press the plate tightly through the rotating ring 44 and the fixing ring 45. When the drill bit 7 is pressed down, the pressure on the plate increases, and the pressure sensor changes at this time. At this time, the third motor 28 drives the rotating shaft 26 to rotate, and the rotating shaft 26 drives the two threaded sleeves 25 to rotate. The two threaded sleeves 25 drive the two adjusting plates 23 to move relative to each other through the two third threaded rods 24. The two adjusting plates 23 compress the air in the adjusting chamber 21, thereby changing the supporting force of the shrinking plate 52 on the plate, so that the supporting force of the shrinking plate on the plate is balanced with the pressure of the drill bit on the plate.

[0045] Embodiment 2

[0046] like Fig. 9 As shown, the difference between this embodiment and the first embodiment is that a level 56 is provided inside the circular plate 1 , a transmitter and a receiver of the level 56 are respectively arranged on the front and rear sides of the circular plate 1 , and a magnet is embedded in the level 56 .

[0047] Through the above technical features, when placing the plate, the level 56 is adsorbed on the appropriate position of the return plate 1. At this time, the horizontality of the plate is observed according to the level 56 to avoid the plate being placed tilted and the drilling being crooked.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved building board drilling device, characterized in that: include, A machine tool, the machine tool comprising a return plate (1), a plurality of support rods (2) being installed in the return plate (1), T-shaped slots (3) being provided on both sides of the return plate (1), a U-shaped plate (4) being provided above the return plate (1), two arms of the U-shaped plate (4) being slidably connected to two T-shaped slots (3) respectively, a moving mechanism (5) for moving the U-shaped plate (4) being provided in the return plate (1), a pneumatic drill (6) being provided on the front side of the U-shaped plate (4), a drill bit (7) being installed at the lower end of the pneumatic drill (6); A positioning mechanism (8) is used for moving and positioning a pneumatic drill (6), the positioning mechanism (8) comprising a follower plate (9), the two ends of the follower plate (9) respectively passing through two T-shaped slots (3) and fixedly connected to the two arms of a U-shaped plate (4), the U-shaped plate (4) and the follower plate (9) are both provided with grooves (10), the two grooves (10) are both rotatably connected with second threaded rods (11), one end of the two second threaded rods (11) are both rotatably passed through the U-shaped plate (4) and are transmission-connected through a second transmission mechanism (12), and the side wall of the U-shaped plate (4) is fixedly connected with a second motor (13) The driving shaft of the second motor (13) rotates and passes through the U-shaped plate (4) and is coaxially fixedly connected to the second threaded rod (11). The two second threaded rods (11) are both threadedly sleeved with threaded blocks (14) on the outside. The two threaded blocks (14) are respectively slidably connected to the inner side walls of the two grooves (10). The U-shaped plate (4) is slidably connected to a U-shaped slider (15). The pneumatic drill (6) is installed on the U-shaped slider (15). The front end of the follower plate (9) is slidably connected to a positioning plate (16). The two threaded blocks (14) are respectively fixedly connected to the positioning plate (16) and the U-shaped slider (15); A synchronous support mechanism (17) is used to support a plate. The synchronous support mechanism (17) comprises a support member (18) arranged above a positioning plate (16). The support member (18) is fixedly connected to the positioning plate (16) via a bellows (19). An air-filling chamber (20) and an adjusting chamber (21) are provided in the positioning plate (16). The air-filling chamber (20) and the adjusting chamber (21) are connected via an electric one-way valve (22). The air-filling chamber (20) is associated with a pneumatic drill (6). The adjusting chamber (21) is connected to the bellows (19). Two adjusting plates (23) are sealed and slidably connected in the adjusting chamber (21). The two adjusting plates The side walls opposite to each other (23) are fixedly connected with third threaded rods (24), and the ends of the two third threaded rods (24) away from the adjusting plate (23) are slidably penetrated through the positioning plate (16). The outer surfaces of the two third threaded rods (24) are threadedly sleeved with threaded sleeves (25), and the two threaded sleeves (25) are rotatably connected to the positioning plate (16). The positioning plate (16) is rotatably penetrated with a rotating shaft (26), and the rotating shaft (26) and the two threaded sleeves (25) are transmission-connected via a third transmission mechanism (27). The side wall of the positioning plate (16) is fixedly connected with a third motor (28), and the third motor (28) is coaxially fixedly connected with the driving shaft.

2. The improved building board drilling device according to claim 1, characterized in that: The moving mechanism (5) comprises two first threaded rods (29) which are rotatably connected to the inner side walls of the two T-shaped slots (3), one end of each of the two first threaded rods (29) is rotatably passed through the return plate (1) and is transmission-connected via a first transmission mechanism (30), a first motor (31) is fixedly connected to the side wall of the return plate (1), and a driving shaft of the first motor (31) is rotatably passed through the return plate (1) and is coaxially fixedly connected to one of the first threaded rods (29).

3. The improved building board drilling device according to claim 2, characterized in that: The first transmission mechanism (30) comprises two first pulleys (32), the two first pulleys (32) are respectively coaxially fixedly connected to two first threaded rods (29), and the two first pulleys (32) are connected via a synchronous belt transmission.

4. The improved building board drilling device according to claim 1, characterized in that: The second transmission mechanism (12) comprises two second pulleys (33), the two second pulleys (33) are respectively coaxially fixedly connected to the two second threaded rods (11), and the two second pulleys (33) are connected via a synchronous belt transmission.

5. The improved building board drilling device according to claim 1, characterized in that: The third transmission mechanism (27) comprises a third pulley (34) and a fourth pulley (35); the third pulley (34) is coaxially fixedly connected to the rotating shaft (26); the fourth pulley (35) is coaxially fixedly connected to the threaded sleeve (25); and the third pulley (34) and the fourth pulley (35) are connected via a synchronous belt transmission.

6. The improved building board drilling device according to claim 1, characterized in that: The drill bit (7) comprises a mounting column (36) and a drilling head (37), wherein a buffer groove (38) is provided in the mounting column (36), a buffer plate (39) is slidably connected in the buffer groove (38), and the drilling head (37) is fixedly mounted on the buffer plate (39), and a limiting rod (40) is slidably penetrated by the buffer plate (39), and both ends of the limiting rod (40) are fixedly connected to the inner side wall of the buffer groove (38), and a spring (41) is provided on the outer sleeve of the limiting rod (40), and both ends of the spring (41) are respectively fixedly connected to the buffer groove (38) and the buffer plate (39), and a contact plate (42) is fixedly connected to the top of the buffer groove (38).

7. The improved building board drilling device according to claim 1, characterized in that: The support member (18) comprises a bottom plate (43), a rotating ring (44) and a fixed ring (45); the upper and lower ends of the rotating ring (44) are rotatably connected to the bottom plate (43) and the fixed ring (45) respectively; the bottom plate (43) and the fixed ring (45) are fixedly connected via two connecting plates (46); a fourth motor (47) is fixedly connected to the side wall of the fixed ring (45); a gear (48) is coaxially fixedly connected to the drive shaft of the fourth motor (47); an annular tooth groove meshing with the gear (48) is provided on the side wall of the rotating ring (44); a plurality of finger holes (49) are penetrated through the fixed ring (45); and each of the plurality of finger holes (49) has a tooth groove (48) disposed therein. A slide rod (50) is slidably connected, and a plurality of eccentric holes (51) are penetrated on the rotating ring (44), and the plurality of eccentric holes (51) respectively correspond to the plurality of finger holes (49) one by one. The lower ends of the plurality of slide rods (50) respectively extend into the plurality of eccentric holes (51) and are arranged therein. The upper end of the fixed ring (45) is rotatably connected to a plurality of contraction plates (52), one of which has a pressure sensor embedded therein, and the plurality of contraction plates (52) respectively correspond to the plurality of finger holes (49) one by one. The contraction plates (52) are provided with tangent holes (53), and the upper ends of the plurality of slide rods (50) respectively extend into the plurality of tangent holes (53) and are arranged therein.

8. The improved building board drilling device according to claim 7, characterized in that: The shrinkage plate (52) is arranged in a special shape, and a first step (54) is arranged at the upper end of the connection part of the shrinkage plate (52) and the fixing ring (45), and a second step (55) is arranged at the lower end of the shrinkage plate (52) away from the connection part of the fixing ring (45), and the first step (54) matches the second step (55).

9. The improved building board drilling device according to claim 1, characterized in that: The external threads of the two third threaded rods (24) have opposite rotation directions.

10. The improved building board drilling device according to claim 1, characterized in that: A level meter (56) is arranged inside the circular plate (1), a transmitter and a receiver of the level meter (56) are arranged on the front and rear sides of the circular plate (1) respectively, and a magnet is embedded in the level meter (56).

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