Drilling and tapping machine with automatic positioning function

Abstract

The invention relates to a drilling and tapping machine with an automatic positioning function, and belongs to the technical field of drilling and tapping machines, the drilling and tapping machine with the automatic positioning function comprises an electrical cabinet, a controller, a gear box, a driving motor and a rotary table, and further comprises a positioning mechanism detachably connected in the rotary table through a bolt and used for positioning a workpiece; the drilling mechanism is fixedly connected to the top of the electrical box and used for drilling; a tapping mechanism; a chamfering mechanism; and a lifting mechanism. Through the arrangement of the chamfering mechanism, a chamfering head can enter a drilled hole under the action of a jacking spring after drilling, polishing and deburring operation is conducted on the lower surface of the hole, chamfering operation is conducted on the lower surface of the drilled hole at the same time, chip removal operation during follow-up tapping is facilitated, and the machining efficiency is improved. And meanwhile, air flow generated by rotation of the fan blades can blow chippings generated by polishing away from the hole and the periphery of the hole, the cleanliness of the drilled hole is ensured, the probability that the tapping head is scratched by burrs is reduced, and the tapping head is well protected.

Description

Technical Field

[0001] This invention belongs to the field of drilling and tapping machine technology, and specifically relates to a drilling and tapping machine with automatic positioning function. Background Technology

[0002] A drilling and tapping machine, also known as a drilling, milling, and tapping machine, is a high-speed, high-precision, and high-efficiency CNC machine tool that integrates three core functions: drilling, milling, and tapping. Drilling and tapping machines are now widely used in fields such as automobiles, medical devices, and precision molds that require efficient processing of small parts.

[0003] Currently, existing drilling and tapping machines typically drill through holes first and then perform tapping operations. However, when drilling through holes, the drill bit extends beyond the lower surface of the workpiece, resulting in burrs on the outer ring of the bottom of the through hole. If tapping is performed directly, these burrs will hinder the removal of chips during the tapping process. Furthermore, the burrs can easily scratch the tapping head and cause chips to fly during tapping, creating certain safety hazards. Therefore, a drilling and tapping machine with automatic positioning function is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a well-designed drilling and tapping machine with automatic positioning function in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A drilling and tapping machine with automatic positioning function includes an electrical box, a controller fixedly connected to the top of the electrical box, a gearbox fixedly connected to the top of the electrical box, a drive motor fixedly connected to the gearbox, and a turntable mounted on the top of the gearbox. It also includes: A positioning mechanism for positioning workpieces that is detachably connected to the turntable by bolts; A drilling mechanism fixedly connected to the top of the electrical box for drilling holes; A tapping mechanism fixedly connected to the top of the electrical box for tapping; A chamfering mechanism installed on a drilling mechanism for chamfering and deburring the lower surface of a drilled hole in a workpiece. The chamfering mechanism includes a fixed plate, and a connecting plate is fixedly connected to the top of the fixed plate via a second telescopic rod and a lifting spring. A fourth synchronous wheel is rotatably connected to the connecting plate, and a chamfering head is fixedly connected to the top of the fourth synchronous wheel. The lifting mechanism installed on the drilling mechanism is used to raise and lower the chamfering mechanism, so that the chamfering head is either close to the workpiece or detached from the close contact state with the workpiece.

[0006] As a further optimization of the present invention, a fan blade is fixedly connected inside the chamfered head, and an air blowing hole is provided on the chamfered head.

[0007] As a further optimization of the present invention, the chamfering mechanism includes a first synchronous pulley, a second synchronous pulley connected to the first synchronous pulley via a first synchronous belt, a fixed frame rotatably connected to the top of the second synchronous pulley, a spline sleeve fixedly connected to the bottom of the second synchronous pulley, a spline shaft slidably connected to the inner surface of the spline sleeve, a rotating base fixedly connected to the bottom of the spline shaft, a third synchronous pulley fixedly connected to the outer surface of the rotating base, a second synchronous belt tensioned between the third synchronous pulley and the fourth synchronous pulley, and the fourth synchronous pulley rotating at the same speed as the first synchronous pulley.

[0008] As a further optimization of the present invention, the lifting mechanism includes a fixed tube, a lifting plate slidably connected to the fixed tube, a piston rod fixedly connected to the bottom of the lifting plate, the piston rod being slidably and sealingly connected to the inner wall of the fixed tube, a sliding groove being provided on the fixed tube, the lifting plate being slidably connected to the sliding groove, an oil tank being fixedly connected to the bottom of the fixed tube, connecting pipes being fixedly connected to both sides of the oil tank, a piston cylinder being fixedly connected to the end of the connecting pipe, and a piston plate being slidably and sealingly connected inside the piston cylinder.

[0009] As a further optimization of the present invention, the splined shaft is rotatably connected to the fixed tube, the oil tank is fixedly connected to the top of the fixed plate, the piston cylinder is fixedly connected to the bottom of the fixed plate, and the top of the piston plate is fixedly connected to the bottom of the connecting plate.

[0010] As a further optimization of the present invention, the drilling mechanism includes a first electric slide fixedly connected to the top of the electrical box, a first column fixedly connected to the sliding component of the first electric slide, a first fixed seat fixedly connected to the first column, a first electric lead screw mounted on the first fixed seat, a first lifting seat threadedly connected to the first electric lead screw, a drilling motor fixedly connected to the first lifting seat, a rotating shaft fixedly connected to the output end of the drilling motor, and a drill bit fixedly connected to the bottom of the rotating shaft.

[0011] As a further optimization of the present invention, the fixing tube is fixedly connected to the bottom of the first fixing seat, the first synchronous wheel is fixedly connected to the outer surface of the rotating shaft, the fixing frame is fixedly connected to the bottom of the first lifting seat, the chamfer head is set facing the drill bit, and the fixing plate is fixedly connected to the first column.

[0012] As a further optimization of the present invention, the tapping mechanism includes a second electric slide fixedly connected to the top of the electrical box, a second column fixedly connected to the sliding component of the second electric slide, a second fixed seat fixedly connected to the second column, a second electric lead screw mounted on the second fixed seat, a second lifting seat threadedly connected to the second electric lead screw, a tapping motor fixedly connected to the second lifting seat, and a tapping head fixedly connected to the output end of the tapping motor.

[0013] As a further optimization of the present invention, the positioning mechanism includes a positioning seat detachably connected to the turntable by bolts, a first telescopic rod fixedly connected inside the positioning seat, a positioning spring sleeved on the outer surface of the first telescopic rod, a positioning plate fixedly connected to the end of the first telescopic rod, the top of the positioning plate being inclined, and the two ends of the positioning spring being fixedly connected to the positioning seat and the positioning plate respectively.

[0014] The beneficial effects of this invention are as follows: 1. This invention, through the setting of the chamfering mechanism, allows the chamfering head to enter the drilled hole under the action of the lifting spring after drilling, and to perform a grinding and deburring operation on the lower surface of the hole. At the same time, it performs a chamfering operation on the lower surface of the drilled hole, which facilitates the chip removal operation during subsequent tapping. Meanwhile, the airflow generated by the rotation of the fan blades will blow away the grinding debris from the hole and the surrounding area, ensuring the cleanliness of the drilled hole, reducing the probability of burrs scratching the tapping head, and providing good protection for the tapping head.

[0015] 2. The present invention, through the setting of the positioning mechanism, has a positioning plate with an inclined top to facilitate the entry of nut workpieces of different sizes into the positioning seat until the bottom of the nut workpiece is in contact with the bottom of the positioning seat. At this time, the positioning spring, the first telescopic rod and the positioning plate perform the positioning operation of the nut workpiece, ensuring that the center of the workpiece can be located in the center position of the positioning seat, thereby improving the accuracy of subsequent processing.

[0016] 3. The present invention achieves the change of position of the chamfering head by setting up a lifting mechanism. During the process of drilling mechanism moving in and out, it can avoid the positioning seat blocking the chamfering head and causing it to be unable to move normally. Furthermore, after the position limit of the chamfering head is released, it will not affect the change of position of the chamfering head during drilling, thus ensuring the grinding function of the chamfering head and facilitating drilling processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the back of the present invention; Figure 3 This is a three-dimensional structural diagram of the turntable of the present invention; Figure 4 This is a three-dimensional structural diagram of the drilling mechanism and chamfering mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the lifting mechanism and chamfering mechanism of the present invention; Figure 6 This is a side-section view of the present invention; Figure 7 This is the invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is the invention Figure 6 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Electrical box; 2. Controller; 3. Gearbox; 4. Drive motor; 5. Turntable; 6. Positioning mechanism; 61. Positioning seat; 62. First telescopic rod; 63. Positioning spring; 64. Positioning plate; 7. Drilling mechanism; 71. First electric slide; 72. First column; 73. First fixed seat; 74. First electric lead screw; 75. First lifting seat; 76. Drilling motor; 77. Rotating shaft; 78. Drill bit; 8. Tapping mechanism; 81. Second electric slide; 82. Second column; 83. Second fixed seat; 84. Second electric lead screw; 85. Second lifting seat; 86. Tapping motor; 87. Tapping head; 9. Chamfering mechanism; 91. First synchronous pulley; 92. First synchronous belt; 93. Second synchronous pulley; 94. Fixed frame; 95. Spline sleeve; 96. Spline shaft; 97. Rotary seat; 98. Third synchronous pulley; 99. Second synchronous belt; 910. Fourth synchronous pulley; 911. Chamfering head; 912. Fan blade; 913. Air blowing hole; 914. Connecting plate; 915. Fixed plate; 916. Second telescopic rod; 917. Lifting spring; 10. Lifting mechanism; 101. Fixed pipe; 102. Lifting plate; 103. Piston rod; 104. Slide groove; 105. Oil tank; 106. Connecting pipe; 107. Piston cylinder; 108. Piston plate. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example: Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a drilling machine with automatic positioning function includes an electrical box 1. A controller 2 is fixedly connected to the top of the electrical box 1. The controller 2 is used to control the operation of the drilling machine. A gearbox 3 is fixedly connected to the top of the electrical box 1. A drive motor 4 is fixedly connected to the gearbox 3. A turntable 5 is installed on the top of the gearbox 3. A positioning mechanism 6 for positioning the workpiece is detachably connected to the turntable 5 by bolts. The positioning mechanism 6 includes a positioning seat 61 detachably connected to the turntable 5 by bolts. A first telescopic rod 62 is fixedly connected inside the positioning seat 61. A positioning spring 63 is sleeved on the outer surface of the first telescopic rod 62. A positioning plate 64 is fixedly connected to the end of the first telescopic rod 62. The top of the positioning plate 64 is inclined. The two ends of the positioning spring 63 are fixedly connected to the positioning seat 61 and the positioning plate 64, respectively.

[0021] In use, the nut workpiece that needs to be drilled and tapped is placed in the positioning seat 61. During the placement process, the positioning plate 64 with its inclined top facilitates the entry of nut workpieces of different sizes into the positioning seat 61 until the bottom of the nut workpiece is in contact with the bottom of the positioning seat 61. At this time, the positioning spring 63, the first telescopic rod 62 and the positioning plate 64 perform the positioning operation of the nut workpiece, ensuring that the center of the workpiece can be located in the center position of the positioning seat 61, thereby improving the accuracy of subsequent processing. Then, the drive motor 4 can be started to drive the turntable 5 to rotate through the gearbox 3, so that the turntable 5 transports the nut workpiece.

[0022] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, a drilling mechanism 7 for drilling is fixedly connected to the top of the electrical box 1. The drilling mechanism 7 includes a first electric slide 71 fixedly connected to the top of the electrical box 1. A first column 72 is fixedly connected to the sliding component of the first electric slide 71. A first fixed seat 73 is fixedly connected to the first column 72. A first electric lead screw 74 is installed on the first fixed seat 73. A first lifting seat 75 is threadedly connected to the first electric lead screw 74. A drilling motor 76 is fixedly connected to the first lifting seat 75. A rotating shaft 77 is fixedly connected to the output end of the drilling motor 76. A drill bit 78 is fixedly connected to the bottom of the rotating shaft 77.

[0023] The turntable 5 rotates to deliver the nut workpiece to the drilling position of the drilling mechanism 7. At this time, the first electric slide 71 is started to move the drill bit 78 directly above the nut workpiece. Then, the drilling motor 76 is started to make the drill bit 78 rotate. At the same time, the first electric lead screw 74 is started to make the first lifting seat 75 move downward, thereby making the drill bit 78 move downward during rotation to perform drilling on the nut workpiece. After drilling is completed, the first electric lead screw 74 is started in reverse to reset the first lifting seat 75. At this time, the drilling motor 76 can be turned off, and then the turntable 5 is started again to make the drilled nut workpiece rotate.

[0024] like Figure 1 and Figure 2 As shown, a tapping mechanism 8 for tapping is fixedly connected to the top of the electrical box 1. The tapping mechanism 8 includes a second electric slide 81 fixedly connected to the top of the electrical box 1. A second column 82 is fixedly connected to the sliding part of the second electric slide 81. A second fixed seat 83 is fixedly connected to the second column 82. A second electric lead screw 84 is installed on the second fixed seat 83. A second lifting seat 85 is threadedly connected to the second electric lead screw 84. A tapping motor 86 is fixedly connected to the second lifting seat 85. A tapping head 87 is fixedly connected to the output end of the tapping motor 86.

[0025] After drilling, the nut workpiece is transported to the station where the tapping mechanism 8 is located. At this time, the second electric slide 81 is started to send the tapping head 87 directly above the nut workpiece. Then, the tapping motor 86 is started to make the tapping head 87 rotate. At the same time, the second electric lead screw 84 is started to make the second lifting seat 85 move downward, so that the tapping head 87 performs tapping operation on the nut after drilling. After tapping is completed, the tapping motor 86 and the second electric lead screw 84 are started in reverse to make the tapping head 87 withdraw from the nut after tapping. Then, the drive motor 4 is started again to make the turntable 5 transport the nut workpiece after drilling and tapping to the unloading station for unloading operation.

[0026] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the drilling mechanism 7 is equipped with a chamfering mechanism 9 for chamfering and deburring the lower surface of the drilled hole in the workpiece. The chamfering mechanism 9 includes a fixed plate 915 fixedly connected to the first column 72. The top of the fixed plate 915 is fixedly connected to a connecting plate 914 via a second telescopic rod 916 and a lifting spring 917. The lifting spring 917 is sleeved on the outside of the second telescopic rod 916. A fourth synchronous wheel 910 is rotatably connected to the connecting plate 914. A chamfering head 911 is fixedly connected to the top of the fourth synchronous wheel 910. The chamfering head 911 is positioned directly opposite the drill bit 78. A fan blade 912 is fixedly connected inside the chamfering head 911. An air blowing hole 913 is opened on the chamfering head 911. The outer surface of the rotating shaft 77 is fixed. A first synchronous pulley 91 is connected, and a second synchronous pulley 93 is connected to the first synchronous pulley 91 via a first synchronous belt 92. A fixed frame 94 is rotatably connected to the top of the second synchronous pulley 93. The fixed frame 94 is fixedly connected to the bottom of the first lifting seat 75. A spline sleeve 95 is fixedly connected to the bottom of the second synchronous pulley 93. A spline shaft 96 is slidably connected to the inner surface of the spline sleeve 95. A rotating seat 97 is fixedly connected to the bottom of the spline shaft 96. The rotating seat 97 is rotatably connected to the connecting plate 914. A third synchronous pulley 98 is fixedly connected to the outer surface of the rotating seat 97. A second synchronous belt 99 is tensioned between the third synchronous pulley 98 and the fourth synchronous pulley 910. The fourth synchronous pulley 910 rotates at the same speed as the first synchronous pulley 91.

[0027] During use, when the drill bit 78 is directly above the nut workpiece, the first lifting seat 75 moves downward, which in turn pushes the second synchronous wheel 93 downward through the fixed frame 94, causing the spline sleeve 95 to move downward. Just as the drill bit 78 is about to contact the nut workpiece, the spline sleeve 95 will contact the rotating seat 97. During the downward drilling process, the connecting plate 914 is pushed downward, preventing the chamfer head 911 from contacting the nut workpiece. As the drilling motor 76 rotates and drills, it gradually pushes the chamfer head... Moving 911 downwards will cause the first synchronous pulley 91 to rotate via the rotating shaft 77, which in turn will cause the spline sleeve 95 to rotate via the first synchronous belt 92 and the second synchronous pulley 93. At this time, the spline sleeve 95 will drive the third synchronous pulley 98 to rotate via the spline shaft 96, which in turn will drive the chamfering head 911 to rotate via the second synchronous belt 99 and the fourth synchronous pulley 910. At this time, the chamfering head 911 rotates at the same speed as the drill bit 78. Simultaneously, the rotation of the chamfering head 911 will drive the fan blade 912 to rotate, allowing the fan blade 912 to pass through... Air is blown through the air holes 913 on the top and outer surface of the chamfering head 911 and directed towards the lower surface of the nut workpiece to dissipate heat and reduce the probability of temperature affecting the performance of the nut workpiece during drilling. After drilling through, the drill bit 78 moves upward and rotates. At this time, the chamfering head 911 will enter the drilled hole under the action of the lifting spring 917 to grind and deburr the lower surface of the hole and chamfer the lower surface of the drilled hole to facilitate subsequent operations. The chip removal operation during tapping prevents chips from accumulating at the bottom of the hole and in the chip groove of the tap, thereby reducing the probability of the tap getting stuck and breaking in the hole. In addition, it ensures the smoothness of the tapped thread surface and reduces the probability of tearing or scratching. At the same time, the airflow generated by the rotation of the fan blade 912 will blow the grinding debris away from the hole and the surrounding area, ensuring the cleanliness of the drilled hole and reducing the probability of burrs scratching the tapping head 87, thus providing good protection for the tapping head 87.

[0028] like Figure 5 , Figure 7 and Figure 8As shown, a lifting mechanism 10 for raising and lowering the chamfering mechanism 9 is installed on the drilling mechanism 7, so that the chamfering head 911 is either pressed against the workpiece or released from the pressed state. The lifting mechanism 10 includes a fixed tube 101 fixedly connected to the bottom of the first fixed seat 73, a spline shaft 96 rotatably connected to the fixed tube 101, a lifting plate 102 slidably connected to the fixed tube 101, a piston rod 103 fixedly connected to the bottom of the lifting plate 102, and the piston rod 103 is slidably and sealingly connected to the inner wall of the fixed tube 101. An opening is provided on the fixed tube 101. There is a slide groove 104, and the lifting plate 102 is slidably connected to the slide groove 104. The bottom of the fixed pipe 101 is fixedly connected to the oil tank 105. The oil tank 105 is fixedly connected to the top of the fixed plate 915. Both sides of the oil tank 105 are fixedly connected to the connecting pipe 106. The end of the connecting pipe 106 is fixedly connected to the piston cylinder 107. The piston cylinder 107 is fixedly connected to the bottom of the fixed plate 915. The piston plate 108 is slidably connected inside the piston cylinder 107. The top of the piston plate 108 is fixedly connected to the bottom of the connecting plate 914.

[0029] like Figure 1 The state shown is the highest position of the drilling mechanism 7. At this time, the fixed frame 94 will pull the lifting plate 102 to the highest position. At this time, there is less oil in the piston cylinder 107, which will cause the piston plate 108 to be in a lower position. At this time, the connecting plate 914 is in the lowest state, which causes the drilling mechanism 7 to move inward, so that when the drill bit 78 reaches directly above the nut workpiece, it will not obstruct the normal movement of the chamfer head 911. During the drilling process, due to the downward movement of the first lifting seat 75, the lifting plate 102 will lose its lifting force. At this time, the connecting plate 914 can move up and down normally. During the process of the first lifting seat 75 resetting after drilling is completed, it will push the lifting plate 102 to move upward, which will then pull the piston rod 103 to move upward, causing the fixed pipe 101 to draw oil from the oil tank 105, which will then draw oil from the piston cylinder 107 through the connecting pipe 106, causing the piston plate 108 to pull the connecting plate 914 downward, which will then lower the chamfer head 911 to the lowest position, making it easier for the drilling mechanism 7 to reset subsequently.

[0030] The specific working principle of this invention is as follows: When using, such as Figure 1The state shown is the highest position of the drilling mechanism 7. At this time, the fixed frame 94 will pull the lifting plate 102 to the highest position. At this time, there is less oil in the piston cylinder 107, which will make the piston plate 108 to be in a lower position. At this time, the connecting plate 914 is in the lowest state, which will cause the drilling mechanism 7 to move inward so that when the drill bit 78 reaches the top of the nut workpiece, it will not obstruct the normal movement of the chamfering head 911. When drilling, the nut workpiece that needs to be drilled and tapped is placed in the positioning seat 61. During the placement process, the positioning plate 64 with the top inclined setting facilitates the entry of nut workpieces of different sizes into the positioning seat 61 until the bottom of the nut workpiece is in contact with the bottom of the positioning seat 61. At this time, the positioning spring 63, the first telescopic rod 62 and the positioning plate 64 perform the positioning operation of the nut workpiece to ensure that the center of the workpiece can be in the center position of the positioning seat 61, thereby improving the accuracy of subsequent processing. Then, the drive motor 4 can be started to drive the turntable 5 to rotate through the gearbox 3, so that the turntable 5 transports the nut workpiece. The turntable 5 rotates to deliver the nut workpiece to the drilling position of the drilling mechanism 7. At this time, the first electric slide 71 is started to move the drill bit 78 directly above the nut workpiece. Then, the drilling motor 76 is started to make the drill bit 78 rotate. At the same time, the first electric lead screw 74 is started to make the first lifting seat 75 move downward, so that the drill bit 78 moves downward during rotation to perform drilling operation on the nut workpiece. After drilling is completed, the first electric lead screw 74 is started in reverse to reset the first lifting seat 75. At this time, the drilling motor 76 can be turned off, and then the turntable 5 is started again to make the drilled nut workpiece rotate. During the drilling process, the downward movement of the first lifting seat 75 will cause the lifting plate 102 to lose its lifting force, at which point the connecting plate 914 can move up and down normally. Meanwhile, when the drill bit 78 is directly above the nut workpiece, the first lifting seat 75 moves downward, which in turn pushes the second synchronous wheel 93 downward through the fixed frame 94, causing the spline sleeve 95 to move downward. During this process, the chamfer head 911 will contact the bottom of the nut workpiece under the action of the lifting spring 917. When the drill bit 78 is about to contact the nut workpiece, the spline sleeve 95 will contact the rotating seat 97. During the downward drilling process, the connecting plate 914 is pushed downward, so that the chamfer head 911 does not contact the nut workpiece. When the drilling motor 76 rotates, during the drilling process, it will gradually push the chamfer head 911 downward, which will drive the first synchronous wheel 91 to rotate through the rotating shaft 77, and then drive the spline sleeve 95 to rotate through the first synchronous belt 92 and the second synchronous wheel 93. At this time, the spline sleeve 95 will drive the third synchronous wheel 98 to rotate through the spline shaft 96, and then drive the chamfer head 911 to rotate through the second synchronous belt 99 and the fourth synchronous wheel 910. At this time, the chamfer head 911 rotates. The rotation speed of the chamfering head 911 is the same as that of the drill bit 78. At the same time, the rotation of the chamfering head 911 will drive the fan blade 912 to rotate, so that the fan blade 912 draws air and blows it onto the lower surface of the nut workpiece through the air blowing hole 913 opened on the top and outer surface of the chamfering head 911, so as to dissipate heat from the nut workpiece and reduce the probability that the temperature will affect the performance of the nut workpiece during the drilling process. After drilling through, the drill bit 78 will move upward. At this time, the chamfering head 911 will gradually enter the drilled hole under the action of the lifting spring 917. At this time, the drill bit 78 is always rotating, so that the chamfering head 911 is always rotating to perform grinding and deburring operation on the lower surface of the hole, and at the same time, perform chamfering operation on the lower surface of the drilled hole, which facilitates the chip removal operation during subsequent tapping. Meanwhile, the airflow generated by the rotation of the fan blade 912 will blow the grinding debris away from the hole and the surrounding area, ensuring the cleanliness of the drilled hole, reducing the probability of burrs scratching the tapping head 87, and providing good protection for the tapping head 87. During the process of resetting the first lifting seat 75 after drilling, the fixed frame 94 will contact the lifting plate 102 and push the lifting plate 102 to move upward, thereby pulling the piston rod 103 to move upward, so that the fixed pipe 101 draws oil from the oil tank 105, and then the oil tank 105 draws oil from the piston cylinder 107 through the connecting pipe 106, so that the piston plate 108 pulls the connecting plate 914 to move downward, thereby lowering the chamfer head 911 to the lowest position, which is convenient for the subsequent resetting of the drilling mechanism 7; After drilling, the nut workpiece is rotated and transported to the tapping station where the tapping mechanism 8 is located. At this time, the second electric slide 81 is started to send the tapping head 87 directly above the nut workpiece after drilling. Then, the tapping motor 86 is started to make the tapping head 87 rotate. At the same time, the second electric lead screw 84 is started to make the second lifting seat 85 move downward so that the tapping head 87 can perform tapping operation on the nut after drilling. After tapping is completed, the tapping motor 86 and the second electric lead screw 84 are started in reverse to make the tapping head 87 withdraw from the nut after tapping. Then, the drive motor 4 is started again to make the turntable 5 transport the nut workpiece after drilling and tapping to the unloading station for unloading operation.

[0031] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A drilling and tapping machine with automatic positioning function, comprising an electrical box (1), a controller (2), a gearbox (3), a drive motor (4), and a turntable (5), characterized in that, Also includes: A positioning mechanism (6) for positioning workpieces is detachably connected to the turntable (5) by bolts. A drilling mechanism (7) is fixedly connected to the top of the electrical box (1) for drilling. A tapping mechanism (8) is fixedly connected to the top of the electrical box (1) for tapping. A chamfering mechanism (9) is installed on the drilling mechanism (7) for chamfering and deburring. The chamfering mechanism (9) includes a fixed plate (915). A connecting plate (914) is fixedly connected to the top of the fixed plate (915) via a second telescopic rod (916) and a lifting spring (917). A fourth synchronous wheel (910) is rotatably connected to the connecting plate (914). A chamfering head (911) is fixedly connected to the top of the fourth synchronous wheel (910). The lifting mechanism (10) installed on the drilling mechanism (7) for raising and lowering the chamfering mechanism (9) makes the chamfering head (911) close to the workpiece or detach from the close contact state with the workpiece.

2. The drilling and tapping machine with automatic positioning function according to claim 1, characterized in that: A fan blade (912) is fixedly connected inside the chamfered head (911), and an air blowing hole (913) is opened on the chamfered head (911).

3. A drilling and tapping machine with automatic positioning function according to claim 1, characterized in that: The chamfering mechanism (9) includes a first synchronous pulley (91), which is connected to a second synchronous pulley (93) via a first synchronous belt (92). A fixed frame (94) is rotatably connected to the top of the second synchronous pulley (93), and a spline sleeve (95) is fixedly connected to the bottom of the second synchronous pulley (93). A spline shaft (96) is slidably connected to the inner surface of the spline sleeve (95), and a rotating seat (97) is fixedly connected to the bottom of the spline shaft (96). A third synchronous pulley (98) is fixedly connected to the outer surface of the rotating seat (97). A second synchronous belt (99) is tensioned between the third synchronous pulley (98) and the fourth synchronous pulley (910). The fourth synchronous pulley (910) rotates at the same speed as the first synchronous pulley (91).

4. A drilling and tapping machine with automatic positioning function according to claim 3, characterized in that: The lifting mechanism (10) includes a fixed tube (101), a lifting plate (102) is slidably connected to the fixed tube (101), a piston rod (103) is fixedly connected to the bottom of the lifting plate (102), the piston rod (103) is slidably connected to the inner wall of the fixed tube (101), a sliding groove (104) is provided on the fixed tube (101), the lifting plate (102) is slidably connected to the sliding groove (104), an oil tank (105) is fixedly connected to the bottom of the fixed tube (101), a connecting pipe (106) is fixedly connected to both sides of the oil tank (105), a piston cylinder (107) is fixedly connected to the end of the connecting pipe (106), and a piston plate (108) is slidably connected inside the piston cylinder (107).

5. A drilling and tapping machine with automatic positioning function according to claim 4, characterized in that: The spline shaft (96) is rotatably connected to the fixed tube (101), the oil tank (105) is fixedly connected to the top of the fixed plate (915), the piston cylinder (107) is fixedly connected to the bottom of the fixed plate (915), and the top of the piston plate (108) is fixedly connected to the bottom of the connecting plate (914).

6. A drilling and tapping machine with automatic positioning function according to claim 4, characterized in that: The drilling mechanism (7) includes a first electric slide (71) fixedly connected to the top of the electrical box (1). A first column (72) is fixedly connected to the sliding component of the first electric slide (71). A first fixed seat (73) is fixedly connected to the first column (72). A first electric lead screw (74) is installed on the first fixed seat (73). A first lifting seat (75) is threadedly connected to the first electric lead screw (74). A drilling motor (76) is fixedly connected to the first lifting seat (75). A rotating shaft (77) is fixedly connected to the output end of the drilling motor (76). A drill bit (78) is fixedly connected to the bottom of the rotating shaft (77).

7. A drilling and tapping machine with automatic positioning function according to claim 6, characterized in that: The fixed tube (101) is fixedly connected to the bottom of the first fixed seat (73), the first synchronous wheel (91) is fixedly connected to the outer surface of the rotating shaft (77), the fixed frame (94) is fixedly connected to the bottom of the first lifting seat (75), the chamfer head (911) is set facing the drill bit (78), and the fixed plate (915) is fixedly connected to the first column (72).

8. A drilling and tapping machine with automatic positioning function according to claim 1, characterized in that: The tapping mechanism (8) includes a second electric slide (81) fixedly connected to the top of the electrical box (1). A second column (82) is fixedly connected to the sliding part of the second electric slide (81). A second fixed seat (83) is fixedly connected to the second column (82). A second electric lead screw (84) is installed on the second fixed seat (83). A second lifting seat (85) is threadedly connected to the second electric lead screw (84). A tapping motor (86) is fixedly connected to the second lifting seat (85). A tapping head (87) is fixedly connected to the output end of the tapping motor (86).

9. A drilling and tapping machine with automatic positioning function according to claim 1, characterized in that: The positioning mechanism (6) includes a positioning seat (61) detachably connected to the turntable (5) by bolts. A first telescopic rod (62) is fixedly connected inside the positioning seat (61). A positioning spring (63) is sleeved on the outer surface of the first telescopic rod (62). A positioning plate (64) is fixedly connected to the end of the first telescopic rod (62). The top of the positioning plate (64) is inclined. The two ends of the positioning spring (63) are fixedly connected to the positioning seat (61) and the positioning plate (64) respectively.

10. A drilling and tapping machine with automatic positioning function according to claim 1, characterized in that: The controller (2) is fixedly connected to the top of the electrical box (1), the gearbox (3) is fixedly connected to the top of the electrical box (1), the drive motor (4) is fixedly connected to the gearbox (3), and the turntable (5) is installed on the top of the gearbox (3).

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