Multi-station drilling and tapping pressure point disc machine

Abstract

The invention provides a multi-station drilling and tapping pressure point disc machine, and relates to the technical field of disc machines. The multi-station pressure point drilling and tapping disc machine comprises a multi-station disc machine body, a main shaft, a mounting shaft, a drill bit, a cooling liquid pipe and a bearing, the mounting shaft is rotationally arranged at the end of the main shaft through the bearing, the drill bit is arranged at the end of the mounting shaft, the main shaft can drive the mounting shaft to rotate forwards and backwards and move telescopically along the axis, and the drill bit can spray cooling liquid outwards. And the mounting shaft can spray cooling liquid to the bearing. In the drilling process of the drill bit, the head of the drill bit can spray cooling liquid outwards, so that the cooling liquid sprayed at a high speed flushes the interior of a drilling position, metal chips generated in a drilling hole are discharged outwards along with the cooling liquid along the chip removal groove of the drill bit, the interior of the drilling position of a workpiece is cleaned up, and subsequent tapping operation is facilitated; the tapping precision is improved; in order to prevent the fit clearance from being changed due to thermal deformation of the bearing structure, cooling liquid is sprayed to the bearing through the outer side of the mounting shaft to reduce the temperature of the bearing.

Description

Technical Field

[0001] This invention relates to the field of disc drilling machine technology, and more particularly to a multi-station drilling and tapping disc drilling machine. Background Technology

[0002] The multi-station drilling, tapping, and pressing disc machine is an automated processing equipment that integrates drilling, tapping, and pressing processes. Its core is a rotatable disc-shaped worktable with multiple stations distributed on it. Each station performs different processes simultaneously, achieving efficient and continuous production.

[0003] However, in actual production, because the coolant flushes the drilling position of the drill bit from top to bottom, it is difficult to clean the metal chips generated inside the drilling position of the workpiece, which affects the subsequent tapping accuracy. In addition, the bearings installed in the spindle are prone to thermal deformation due to continuous operation, which also affects the drilling accuracy. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art by proposing a multi-station drilling and tapping disc machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station drilling and tapping disc machine includes a multi-station disc machine, a spindle, a mounting shaft, a drill bit, a coolant pipe, and bearings. The multi-station disc machine includes a spindle and a coolant pipe. The mounting shaft is rotatably mounted on the end of the spindle via the bearings. The drill bit is detachably mounted on the end of the mounting shaft. The spindle can drive the mounting shaft to rotate forward and backward and move telescopically along its axis. The head of the drill bit can spray coolant drawn from the coolant pipe outward. The outside of the mounting shaft can spray coolant drawn from the coolant pipe onto the bearings.

[0006] Preferably, the multi-station rotary disc machine further includes a spindle box, the spindle is telescopically disposed inside the spindle box, a first placement groove is provided in the end of the spindle, a bearing is fixedly installed on the inner side of the end of the first placement groove, the end of the mounting shaft is fixedly installed in the middle of the bearing, a metal sealing ring is attached to the side of the bearing, a first servo motor is fixedly installed in the inner side of the first placement groove, and the output shaft of the first servo motor is fixedly connected to the side of the end of the mounting shaft.

[0007] Preferably, a rectangular groove is provided inside the end of the mounting shaft, and a rectangular block is fixedly provided at the tail end of the drill bit. The rectangular block and the inner side of the rectangular groove are mutually engaged and matched in size. A protrusion is fixedly provided outside the end of the mounting shaft, and a threaded hole is provided inside the protrusion. The threaded hole extends into the interior of the rectangular block, and a bolt is threaded into the threaded hole.

[0008] Preferably, a drive assembly is provided inside the mounting shaft. The drive assembly includes a piston component. When the piston component reciprocates along the axis of the mounting shaft, it drives the drill bit head and the outer side of the mounting shaft to spray coolant outward.

[0009] Preferably, the drive assembly further includes a second placement slot, a circular cavity, a second servo motor, a lead screw, and a guide rod. The piston component includes a first piston plate and a second piston plate. The circular cavity is coaxially formed inside the mounting shaft, and the second placement slot is coaxially formed inside the end of the mounting shaft. The lead screw is disposed inside the circular cavity, and both ends of the guide rod are fixed to the inner sidewall of the circular cavity. The second servo motor is fixedly installed inside the second placement slot, and its output shaft is fixedly connected to the end of the lead screw. The outer sides of the first and second piston plates are slidably connected to the inner surface of the circular cavity. The inner sides of the first and second piston plates are threadedly connected to the outer sides of the lead screw. The inner sides of the first and second piston plates are slidably connected to the outer sides of the guide rod. When the first and second piston plates reciprocate along the axial direction, they drive the drill bit head and the mounting shaft to spray coolant outward.

[0010] Preferably, the space formed by the first piston plate and the inner wall of the circular cavity is a first chamber. The side wall of the first chamber is fixedly connected with a plurality of uniformly distributed L-shaped tubes along the circumferential direction. A nozzle is fixedly installed at the end of the L-shaped tube. The side wall of the first chamber is also fixedly connected with a first fixed tube. A first one-way valve is fixedly installed on the first fixed tube. A first flexible hose is fixedly connected at the end of the first fixed tube. The end of the first flexible hose is fixedly connected to the outside of the coolant pipe.

[0011] Preferably, the space formed by the second piston plate and the inner wall of the circular cavity is a second chamber. A second fixed pipe is fixedly connected to the side wall of the second chamber. A second one-way valve is fixedly installed on the second fixed pipe. A second flexible hose is fixedly connected to the end of the second fixed pipe. The end of the second flexible hose is fixedly connected to the outside of the coolant pipe. A through water spray pipe is opened in the middle of the drill bit. A circular hole connected to the water spray pipe is opened in the middle of the side wall of the second chamber.

[0012] Preferably, the mounting shaft is not interfered with by external structures when it rotates in the forward or reverse direction.

[0013] Preferably, the multi-station disc machine further includes a feeding mechanism, a material inspection mechanism, a tapping mechanism, a pressing mechanism, a material unloading mechanism, and a cleaning mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When drilling a hole in a workpiece, the head of the drill bit can spray coolant outward during the drilling process, so that the high-speed jet of coolant flushes the inside of the drilling position. The metal chips generated inside the hole are discharged outward along the chip removal groove of the drill bit with the coolant, so that the inside of the workpiece at the drilling position is cleaned, which facilitates subsequent tapping operations and improves tapping accuracy; In order to avoid the bearing structure from changing the fit clearance due to thermal deformation, coolant is sprayed onto the bearing from the outside of the mounting shaft to reduce the temperature of the bearing structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the multi-station drilling and tapping disc machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the multi-station drilling and tapping pressure point disc machine according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the external structure of the mounting shaft in the multi-station drilling and tapping disc machine according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mounting shaft in the multi-station drilling and tapping disc machine according to an embodiment of the present invention; Figure 5 for Figure 3 Enlarged view of the structure at point A in the image; Figure 6 for Figure 3 Enlarged view of the structure at point B in the image; Figure 7 for Figure 4 Enlarged view of the structure at point C in the image; Figure 8 for Figure 4 Enlarged view of the structure at point D in the image.

[0016] In the diagram: 100, Multi-station rotary table machine; 101, Spindle box; 102, Spindle; 103, Mounting shaft; 104, Drill bit; 105, Coolant pipe; 200, First placement slot; 201, First servo motor; 202, Bearing; 203, Metal sealing ring; 300, Second placement slot; 301, Circular cavity; 302, Second servo motor; 303, Lead screw; 304, Guide rod; 305, First piston plate; 306, ... Two piston plates; 400, first chamber; 401, first fixed tube; 402, first one-way valve; 403, first hose; 500, second chamber; 501, second fixed tube; 502, second one-way valve; 503, second hose; 600, L-shaped tube; 601, nozzle; 700, rectangular groove; 701, round hole; 702, rectangular block; 703, water spray pipe; 704, threaded hole; 705, protrusion; 706, bolt. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0019] like Figure 1-8 As shown, this embodiment of the invention provides a multi-station drilling and tapping disc machine, including a multi-station disc machine 100, a spindle 102, a mounting shaft 103, a drill bit 104, a coolant pipe 105, and a bearing 202. The multi-station disc machine 100 includes a spindle 102 and a coolant pipe 105. The mounting shaft 103 is rotatably mounted on the end of the spindle 102 via the bearing 202. The drill bit 104 is detachably mounted on the end of the mounting shaft 103. The spindle 102 can drive the mounting shaft 103 to rotate forward and backward and move telescopically along the axis. The head of the drill bit 104 can spray coolant drawn from the coolant pipe 105 outward, and the outside of the mounting shaft 103 can spray coolant drawn from the coolant pipe 105 onto the bearing 202.

[0020] In this embodiment, after the multi-station rotary disc machine 100 loads the workpiece, it needs to drill holes. The main spindle 102 drives the mounting shaft 103 to rotate and extend outward along the axis, thereby driving the drill bit 104 to rotate synchronously and extend outward along the axis, thus drilling holes in the workpiece. During the drilling process, the coolant sprayed from the coolant pipe 105 cools the drilling position of the drill bit 104. At the same time, the head of the drill bit 104 can spray coolant drawn from the coolant pipe 105 outward, so that the high-speed jet of coolant can cool the inside of the drilling position. Flushing allows metal chips generated inside the drilled hole to be discharged outward along the chip removal groove of the drill bit 104 with the coolant, thus cleaning the inside of the drilled hole in the workpiece to facilitate subsequent tapping operations and improve tapping accuracy. At the same time, due to the continuous operation of the mounting shaft 103, frictional heat is generated after several hours of continuous processing. In order to prevent the bearing 202 structure from changing the fit clearance due to thermal deformation, coolant drawn from the coolant pipe 105 can be sprayed from the outside of the mounting shaft 103 onto the bearing 202 to reduce the temperature of the bearing 202 structure. The workpiece is drilled by drill bit 104. During the drilling process, coolant can be sprayed outward from the head of drill bit 104. The high-speed jet of coolant flushes the inside of the drilled area. Metal chips generated inside the drilled area are discharged outward along the chip removal groove of drill bit 104 with the coolant, so that the inside of the drilled area of ​​the workpiece is cleaned, so as to facilitate subsequent tapping operations and improve tapping accuracy. In order to prevent the bearing 202 structure from changing the fit clearance due to thermal deformation, coolant is sprayed onto the bearing 202 from the outside of the mounting shaft 103 to reduce the temperature of the bearing 202 structure.

[0021] like Figure 4 As shown, optionally, the multi-station rotary disc machine 100 also includes a spindle box 101. The spindle 102 is telescopically disposed inside the spindle box 101. A first placement groove 200 is provided in the end of the spindle 102. A bearing 202 is fixedly installed on the inner side of the end of the first placement groove 200. The end of the mounting shaft 103 is fixedly installed in the middle of the bearing 202. A metal sealing ring 203 is attached to the side of the bearing 202. A first servo motor 201 is fixedly installed in the inner side of the first placement groove 200. The output shaft of the first servo motor 201 is fixedly connected to the side of the end of the mounting shaft 103.

[0022] In this embodiment, the mounting shaft 103 is rotatable relative to the main shaft 102 via the bearing 202. The first servo motor 201 can drive the mounting shaft 103 to rotate in either the forward or reverse direction by rotating its output shaft. The metal sealing ring 203 is fixedly mounted on the side of the bearing 202. Here, the metal sealing ring 203 can be made of copper. After continuous processing for several hours, the mounting shaft 103 generates frictional heat due to continuous operation. To prevent the bearing 202 structure from changing the fit clearance due to thermal deformation, the metal sealing ring 203 absorbs the heat generated by the bearing 202 and conducts it outward. At the same time, coolant is sprayed from the outside of the mounting shaft 103 onto the metal sealing ring 203 to accelerate the heat dissipation of the metal sealing ring 203 and achieve the purpose of reducing the temperature of the bearing 202 structure. The rotatability of the mounting shaft 103 and the telescopic nature of the main shaft 102 are existing technologies, and their specific working principles and structures will not be described in detail here.

[0023] like Figure 4 and Figure 7 As shown, optionally, a rectangular groove 700 is provided inside the end of the mounting shaft 103, and a rectangular block 702 is fixedly provided at the tail end of the drill bit 104. The rectangular block 702 and the inner side of the rectangular groove 700 are mutually engaged and matched in size. A protrusion 705 is fixedly provided outside the end of the mounting shaft 103. A threaded hole 704 is provided inside the protrusion 705. The threaded hole 704 extends into the interior of the rectangular block 702, and a bolt 706 is threadedly connected inside the threaded hole 704.

[0024] In this embodiment, the rectangular block 702 is inserted into the rectangular slot 700, and then the bolt 706 is rotated and tightened into the threaded hole 704 to fix the position of the rectangular block 702 relative to the mounting shaft 103, thus completing the installation of the drill bit 104. At the same time, the drill bit 104 can be disassembled by unscrewing the bolt 706. After the drill bit 104 is installed, it can rotate synchronously with the mounting shaft 103 and move linearly to drill holes in the workpiece.

[0025] like Figure 4 As shown, optionally, a drive assembly is provided inside the mounting shaft 103. The drive assembly includes a piston. When the piston moves back and forth along the axial direction of the mounting shaft 103, it drives the head of the drill bit 104 and the outside of the mounting shaft 103 to spray coolant outward.

[0026] In this embodiment, when the mounting shaft 103 drives the drill bit 104 to rotate and move linearly to drill a hole in the workpiece, the piston moves linearly along the axis of the mounting shaft 103 and simultaneously drives the head of the drill bit 104 to spray coolant outward, so that the high-speed jet of coolant will flush out the metal chips generated inside the hole, so as to facilitate the subsequent tapping operation; when the piston moves in the opposite direction along the axis of the mounting shaft 103, it drives the outer side of the mounting shaft 103 to spray coolant onto the bearing 202 to reduce the structural temperature of the bearing 202 and prevent thermal deformation.

[0027] like Figure 4 and Figure 8 As shown, optionally, the drive assembly also includes a second placement slot 300, a circular cavity 301, a second servo motor 302, a lead screw 303, and a guide rod 304. The piston component includes a first piston plate 305 and a second piston plate 306. The circular cavity 301 is coaxially formed inside the mounting shaft 103, the second placement slot 300 is coaxially formed inside the end of the mounting shaft 103, the lead screw 303 is disposed inside the circular cavity 301, and the two ends of the guide rod 304 are fixedly disposed on the inner sidewall of the circular cavity 301. The second servo motor 302 is fixedly installed in the second placement slot. Inside 300, and the output shaft is fixedly connected to the end of the lead screw 303. The outer sides of the first piston plate 305 and the second piston plate 306 are slidably connected to the inner surface of the circular cavity 301. The inner sides of the first piston plate 305 and the second piston plate 306 are threadedly connected to the outer side of the lead screw 303. The inner sides of the first piston plate 305 and the second piston plate 306 are slidably connected to the outer side of the guide rod 304. When the first piston plate 305 and the second piston plate 306 reciprocate along the axial direction, they drive the head of the drill bit 104 and the mounting shaft 103 to spray coolant outward.

[0028] In this embodiment, since the first piston plate 305 and the second piston plate 306 are simultaneously threadedly connected to the lead screw 303, when the second servo motor 302 drives the lead screw 303 to rotate, the first piston plate 305 and the second piston plate 306 synchronously reciprocate linearly along the axis of the circular cavity 301. When the first piston plate 305 and the second piston plate 306 move towards the drill bit 104, the second piston plate 306 pushes the coolant outward from the head of the drill bit 104. When the first piston plate 305 and the second piston plate 306 move towards the bearing 202, the first piston plate 305 pushes the coolant outward from inside the mounting shaft 103 and cools the bearing 202.

[0029] like Figure 3-8 As shown, optionally, the space formed by the first piston plate 305 and the inner wall of the circular cavity 301 is a first chamber 400. A plurality of evenly distributed L-shaped tubes 600 are fixedly connected to the side wall of the first chamber 400 along the circumferential direction. A nozzle 601 is fixedly installed at the end of the L-shaped tube 600. A first fixed tube 401 is also fixedly connected to the side wall of the first chamber 400. A first one-way valve 402 is fixedly installed on the first fixed tube 401. A first hose 403 is fixedly connected to the end of the first fixed tube 401. The end of the first hose 403 is fixedly connected to the outside of the coolant pipe 105.

[0030] In this embodiment, when the first piston plate 305 moves towards the drill bit 104, the space of the first chamber 400 increases. At this time, suction is performed in the first chamber 400, and some coolant in the coolant pipe 105 is replenished into the first chamber 400 through the first hose 403 and the first fixed pipe 401 to achieve automatic replenishment. When the first piston plate 305 moves towards the bearing 202, the space in the first chamber 400 decreases. Under the pushing and squeezing of the first piston plate 305, the coolant in the first chamber 400 enters into multiple L-shaped pipes 600, and is finally sprayed out through the nozzle 601 to cool and reduce the temperature of the bearing 202 to prevent thermal deformation. Here, the first one-way valve 402 ensures that the coolant can only be replenished into the first chamber 400 through the first fixed pipe 401.

[0031] like Figure 3-8 As shown, optionally, the space formed by the second piston plate 306 and the inner wall of the circular cavity 301 is a second chamber 500. A second fixed pipe 501 is fixedly connected to the side wall of the second chamber 500. A second one-way valve 502 is fixedly installed on the second fixed pipe 501. A second hose 503 is fixedly connected to the end of the second fixed pipe 501. The end of the second hose 503 is fixedly connected to the outside of the coolant pipe 105. A through water spray pipe 703 is opened in the middle of the drill bit 104. A circular hole 701 connected to the water spray pipe 703 is opened in the middle of the side wall of the second chamber 500.

[0032] In this embodiment, when the second piston plate 306 moves towards the drill bit 104, the space of the second chamber 500 decreases. Under the action of the second one-way valve 502, the coolant can only enter the water spray pipe 703 through the round hole 701 and be sprayed out through the nozzle 601, so that the high-speed jet of coolant can flush out the metal chips generated inside the drill hole, so as to facilitate the subsequent tapping operation. When the second piston plate 306 moves towards the bearing 202, the space inside the second chamber 500 increases, and the second chamber 500 begins to be sucked, so that part of the coolant in the coolant pipe 105 is replenished into the second chamber 500 through the second hose 503 and the second fixed pipe 501, realizing automatic replenishment.

[0033] like Figure 3 As shown, optionally, the mounting shaft 103 is not interfered with by external structures when rotating in the forward or reverse direction.

[0034] In this embodiment, when the mounting shaft 103 drives the drill bit 104 to slowly rotate forward to drill a hole in the workpiece, since the hole is shallow, the mounting shaft 103 only winds a small section of the first hose 403 and the second hose 503. When the mounting shaft 103 drives the drill bit 104 to slowly rotate in the reverse direction and exit the inner hole of the workpiece, the mounting shaft 103 unwinds the wound portion of the first hose 403 and the second hose 503, so that the first hose 403 and the second hose 503 return to their original state, and then the above operation is repeated.

[0035] like Figure 1 and Figure 2 As shown, optionally, the multi-station rotary disc machine 100 also includes a feeding mechanism, a material inspection mechanism, a tapping mechanism, a pressing mechanism, a material unloading mechanism, and a cleaning mechanism.

[0036] In this embodiment, the multi-station disc machine 100 achieves an automated production process through the coordinated operation of a circular station for feeding, inspection, drilling, tapping, pressing, unloading, and cleaning. As this is existing technology, its specific structure, principle, and workflow will not be described in detail here.

[0037] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-station drilling and tapping disc machine, characterized in that, The machine includes a multi-station rotary disc machine (100), a spindle (102), a mounting shaft (103), a drill bit (104), a coolant pipe (105), and a bearing (202). The multi-station rotary disc machine (100) includes a spindle (102) and a coolant pipe (105). The mounting shaft (103) is rotatably mounted on the end of the spindle (102) via the bearing (202). The drill bit (104) is detachably mounted on the end of the mounting shaft (103). The spindle (102) can drive the mounting shaft (103) to rotate forward and backward and move along the axis. The head of the drill bit (104) can spray coolant drawn from the coolant pipe (105) outward. The outside of the mounting shaft (103) can spray coolant drawn from the coolant pipe (105) onto the bearing (202).

2. The multi-station drilling and tapping disc machine according to claim 1, characterized in that, The multi-station rotary disc machine (100) also includes a spindle box (101). The spindle (102) is telescopically disposed inside the spindle box (101). A first placement groove (200) is provided in the end of the spindle (102). A bearing (202) is fixedly installed on the inner side of the end of the first placement groove (200). The end of the mounting shaft (103) is fixedly installed in the middle of the bearing (202). A metal sealing ring (203) is attached to the side of the bearing (202). A first servo motor (201) is fixedly installed in the inner side of the first placement groove (200). The output shaft of the first servo motor (201) is fixedly connected to the side of the end of the mounting shaft (103).

3. The multi-station drilling and tapping pressure point disc machine according to claim 1, characterized in that, A rectangular groove (700) is provided inside the end of the mounting shaft (103), and a rectangular block (702) is fixedly provided at the tail end of the drill bit (104). The rectangular block (702) and the inner side of the rectangular groove (700) are engaged with each other and matched in size. A protrusion (705) is fixedly provided outside the end of the mounting shaft (103), and a threaded hole (704) is provided inside the protrusion (705). The threaded hole (704) extends into the interior of the rectangular block (702), and a bolt (706) is threadedly connected inside the threaded hole (704).

4. The multi-station drilling and tapping disc machine according to claim 1, characterized in that, A drive assembly is provided inside the mounting shaft (103). The drive assembly includes a piston. When the piston moves back and forth along the axis of the mounting shaft (103), it drives the head of the drill bit (104) and the outside of the mounting shaft (103) to spray coolant outward.

5. The multi-station drilling and tapping pressure point disc machine according to claim 4, characterized in that, The drive assembly further includes a second placement slot (300), a circular cavity (301), a second servo motor (302), a lead screw (303), and a guide rod (304). The piston component includes a first piston plate (305) and a second piston plate (306). The circular cavity (301) is coaxially opened inside the mounting shaft (103). The second placement slot (300) is coaxially opened inside the end of the mounting shaft (103). The lead screw (303) is disposed inside the circular cavity (301). The two ends of the guide rod (304) are fixedly disposed on the inner sidewall of the circular cavity (301). The second servo motor (302) is fixedly installed in the second placement slot. (300) inside, and the output shaft is fixedly connected to the end of the lead screw (303). The outer sides of the first piston plate (305) and the second piston plate (306) are slidably connected to the inner surface of the circular cavity (301). The inner sides of the first piston plate (305) and the second piston plate (306) are threadedly connected to the outer side of the lead screw (303). The inner sides of the first piston plate (305) and the second piston plate (306) are slidably connected to the outer side of the guide rod (304). When the first piston plate (305) and the second piston plate (306) reciprocate along the axial direction, they drive the head of the drill bit (104) and the mounting shaft (103) to spray coolant outward.

6. The multi-station drilling and tapping disc machine according to claim 5, characterized in that, The space formed by the first piston plate (305) and the inner wall of the circular cavity (301) is a first chamber (400). A plurality of uniformly distributed L-shaped tubes (600) are fixedly connected to the side wall of the first chamber (400) along the circumference. A nozzle (601) is fixedly installed at the end of the L-shaped tube (600). A first fixed tube (401) is also fixedly connected to the side wall of the first chamber (400). A first one-way valve (402) is fixedly installed on the first fixed tube (401). A first hose (403) is fixedly connected to the end of the first fixed tube (401). The end of the first hose (403) is fixedly connected to the outside of the coolant pipe (105).

7. The multi-station drilling and tapping disc machine according to claim 5, characterized in that, The space formed by the second piston plate (306) and the inner wall of the circular cavity (301) is a second chamber (500). A second fixed pipe (501) is fixedly connected to the side wall of the second chamber (500). A second one-way valve (502) is fixedly installed on the second fixed pipe (501). A second hose (503) is fixedly connected to the end of the second fixed pipe (501). The end of the second hose (503) is fixedly connected to the outside of the coolant pipe (105). A through water spray pipe (703) is opened in the middle of the drill bit (104). A circular hole (701) connected to the water spray pipe (703) is opened in the middle of the side wall of the second chamber (500).

8. The multi-station drilling and tapping pressure point disc machine according to claim 1, characterized in that, The mounting shaft (103) is not interfered with by external structures when it rotates in the forward or reverse direction.

9. The multi-station drilling and tapping pressure point disc machine according to claim 1, characterized in that, The multi-station disc machine (100) also includes a feeding mechanism, a material inspection mechanism, a tapping mechanism, a pressing mechanism, a material unloading mechanism, and a cleaning mechanism.

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