A tapping and drilling integrated CNC machine tool

Abstract

The present invention belongs to the field of numerical control machine tools, and provides a tapping and drilling integrated numerical control machine tool, including a workbench, a rotating tube is rotatably connected to the workbench, a turntable is fixedly connected to the top of the rotating tube, a plurality of rotating rods are rotatably connected to the turntable, the plurality of rotating rods are evenly distributed around the axis of the turntable, the tops of the plurality of rotating rods are fixedly connected to a work station disk, the top of each of the work station disks is provided with a workpiece slot, and a drilling machine and a tapping machine are also installed on the workbench. The present invention arranges a plurality of rotatable work stations on the turntable, and after the pipe fitting is installed in the workpiece slot on the work station disk, one end of the pipe fitting can be drilled and tapped first, and then the work station disk is rotated 180°, and then the other end is drilled and tapped, and reversing can be achieved without disassembling the pipe fitting, thereby making the tapping accuracy at both ends of the pipe fitting higher and improving the quality of pipe fitting tapping.

Description

Technical Field

[0001] The invention belongs to the field of numerical control machine tools, and in particular relates to a numerical control machine tool integrated with tapping and drilling. Background Art

[0002] Buses are one of the important means of transportation for people. They are the most commonly used means of transportation when people travel or go on business trips. The safety and comfort of buses are particularly important. Passenger seats are important equipment in buses. On the one hand, they directly support the weight of the human body. On the other hand, they are connected to the car body to attenuate and filter the vibrations from the floor and side panels to avoid making passengers feel uncomfortable.

[0003] The frame is the supporting structure of the seat, which is fixed to the floor of the vehicle body to support the entire seat and the mass of the human body. The frame material is diverse, and is commonly made of steel pipes, steel plates, aluminum plates, magnesium alloys, resin plates, wood, etc. In modern designs, lightweight materials such as magnesium alloys may be used to reduce weight and increase strength.

[0004] When producing frames, welding or bolts are usually used to connect the various materials. Compared with welding, bolts facilitate subsequent disassembly and maintenance, and are more popular among manufacturers and customers.

[0005] When tapping the skeleton steel pipe, a drilling and tapping machine is usually used. First, a hole is drilled on the steel pipe, and then the tapping is performed in the hole. Due to the installation characteristics of the skeleton, both ends of the steel pipe need to be tapped. The existing drilling and tapping machine requires manual assistance in loading and reversing. After tapping one end of the steel pipe, the steel pipe needs to be manually taken out, and then the other end of the steel pipe is placed in the work station. Since the steel pipe is cylindrical, when it is placed again, it cannot be guaranteed that the axes of the two holes drilled on the steel pipe are parallel, which reduces the accuracy of steel pipe tapping and reduces the quality of the steel pipe. Summary of the invention

[0006] The purpose of the present invention is to provide a tapping and drilling integrated CNC machine tool, aiming to solve the technical problem in the prior art that manual reversing reduces the quality of steel pipes.

[0007] The present invention is implemented as follows: a tapping and drilling integrated CNC machine tool comprises a workbench, a rotating tube is rotatably connected to the workbench, a turntable is fixedly connected to the top of the rotating tube, a plurality of rotating rods are rotatably connected to the turntable, the plurality of rotating rods are evenly distributed around the axis of the turntable, the tops of the plurality of rotating rods are fixedly connected to a station disk, a workpiece groove is provided on the top of each station disk, the workpiece groove is used to place pipe fittings, a drilling machine and a tapping machine are also installed on the workbench, the output ends of the drilling machine and the tapping machine are respectively located above two adjacent station disks, and the tapping machine is located on one side of the drilling machine along the rotation direction of the turntable, and further comprises:

[0008] A discharging mechanism, wherein a fixing rod is fixedly connected to the workbench, one end of the fixing rod extending into the turntable is fixedly connected to a fixing plate, and the discharging mechanism is mounted on the fixing plate, and the discharging mechanism is used to discharge the completed workpieces in the workpiece slot;

[0009] A power mechanism, the power mechanism is installed on the workbench, the output end of the power mechanism is connected to the rotating tube, the power mechanism is used to drive the rotating tube to rotate intermittently, and the rotating tube drives the turntable to rotate intermittently by one station;

[0010] A direction-adjusting mechanism is installed on a turntable, and multiple output ends of the direction-adjusting mechanism are respectively connected to multiple rotating rods, and the other end of the direction-adjusting mechanism is installed on a fixed rod. When the power mechanism drives the turntable to rotate, the direction-adjusting mechanism is used to drive one of the rotating rods to rotate 180°, and the rotating rod drives the work station disk to rotate 180°, thereby reversing the direction of the pipe fitting, which is convenient for drilling and tapping the other end of the pipe fitting. There is no need for manual reversal by the staff, which improves work efficiency and ensures tapping accuracy.

[0011] Further technical solution: the discharging mechanism includes a cylinder fixedly mounted on a fixed plate, the movable end of the cylinder is fixedly connected to a pusher head, a plurality of through holes are opened on the turntable, the plurality of through holes are respectively connected to a plurality of workpiece grooves, the pusher head is located on one side of the tapping machine along the rotation direction of the turntable, and the position toward which the movable end of the cylinder faces is the discharging position.

[0012] Further technical solution: the power mechanism includes a second mounting frame fixedly connected to the workbench, a servo motor is fixedly mounted on the second mounting frame, and a transmission pair is connected between the output shaft of the servo motor and one end of the rotating tube.

[0013] Further technical solution: the direction adjustment mechanism includes a plurality of mounting grooves provided on the turntable, the end of the rotating rod extending into the mounting groove is fixedly connected to the second bevel gear, the turntable is rotatably connected to a plurality of transmission rods, the end of the transmission rod located inside the mounting groove is fixedly connected to the third bevel gear, the third bevel gear and the second bevel gear are meshingly connected, and the ends of the plurality of transmission rods located on the inner side of the turntable are fixedly connected to the first bevel gear, the direction adjustment mechanism also includes a supporting plate fixedly connected to the fixing rod, the supporting plate is fixedly connected to an arc bevel gear, the plurality of the first bevel gears can mesh with the arc bevel gear, the arc bevel gear is located on one side of the tapping machine along the rotation direction of the turntable, and the number of teeth on the arc bevel gear is half of the teeth of the first bevel gear.

[0014] A further technical solution includes a plurality of clamping mechanisms, which are respectively mounted on a plurality of workstations, wherein the output ends of the clamping mechanisms are connected to the workpiece grooves, and the clamping mechanisms are used to clamp the pipe fittings to prevent the pipe fittings from rotating.

[0015] Further technical solution: the clamping mechanism includes an installation cavity opened inside the work station disk, the side wall of the installation cavity is provided with a plurality of installation holes connected to the workpiece groove, the plurality of installation holes are equidistantly distributed, each of the installation holes is slidably connected to a clamping block, and each side of the clamping block facing away from the workpiece groove is connected to a push plate through a second compression spring, the interior of the installation cavity is fixedly connected to a plurality of fixed shafts, the number of the fixed shafts is one less than the number of the installation holes, and each of the fixed shafts is located between two adjacent installation holes, each of the fixed shafts is rotatably connected to a rotating cylinder, and the side of each rotating cylinder is fixedly connected to two symmetrical push rods, one end of the two push rods respectively abuts against the side surfaces of two push plates adjacent to it, and the side of each rotating cylinder is fixedly connected to a paddle plate, one end of the paddle plate extends to the interior of the workpiece groove, and the work station disk is provided with a movable hole for the paddle plate to move.

[0016] A further technical solution also includes a positioning mechanism, which is installed on a fixed plate, and a plurality of output ends of the positioning mechanism are respectively plugged into a plurality of workstation trays, and the positioning mechanism is used to accurately position the workstation trays.

[0017] Further technical solution: the positioning mechanism includes a connecting rod fixedly connected to a fixed plate, the top of the connecting rod is fixedly connected to a first mounting frame, a plurality of storage grooves are provided at the bottom of the first mounting frame, each of the storage grooves corresponds to a work station, a positioning column is slidably connected inside the storage groove, a first compression spring is connected between the positioning column and the storage groove, and each of the work station disks is provided with two positioning grooves matched with the positioning column, the two positioning grooves are symmetrically distributed about the axis of the work station disk, and in order to facilitate the automatic removal of the positioning column from the positioning groove, the end of the positioning column close to the work station disk is set to a hemispherical shape, and when the positioning column is inserted into the positioning groove, the axis of the workpiece groove faces the axis of the turntable.

[0018] Further technical solution: also includes a correction component, which is installed on the turntable, and the output end of the correction component is connected to the rotating rod. The correction component is used to correct the angle of the workstation disk so that the workpiece groove on the workstation disk is always facing the axial direction of the turntable, which is convenient for the positioning mechanism to position the workstation disk.

[0019] Further technical solution: the deviation correction component includes a spring box, the spring box is fixedly connected to the turntable, and the axis of the spring box coincides with the axis of the rotating rod, a clockwork spring is installed inside the spring box, the output end of the clockwork spring is fixedly connected to the rotating rod, and the other end of the clockwork spring is slidably connected to the inner wall of the spring box;

[0020] In order to fix the spring and prevent it from affecting the rotation of the rotating rod, a protrusion is provided at the end of the spring, and two symmetrical slots are provided on the inner side wall of the spring box. The protrusion is engaged with one of the slots. Initially, the axis of the workpiece slot faces the axial direction of the work station disk.

[0021] In order to avoid affecting the reversal of the workpiece slot, the maximum torsion angle of the clockwork spring is less than 180°.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention provides a plurality of rotatable workstations on a turntable. After the pipe fitting is installed in the workpiece slot on the workstation, one end of the pipe fitting can be drilled and tapped first, and then the workstation can be rotated 180° to drill and tap the other end. Reversal can be achieved without disassembling the pipe fitting, thereby making the tapping accuracy at both ends of the pipe fitting higher and improving the tapping quality of the pipe fitting.

[0024] 2. The present invention can automatically change the direction of the work station disk through the direction adjustment mechanism, without manual direction change, thus reducing the workload of the staff, improving the work efficiency and ensuring the tapping accuracy;

[0025] 3. In the present invention, when inserting a pipe fitting into the workpiece slot, one end of the pipe fitting will push the dial plate to rotate, the dial plate drives the rotating cylinder to rotate, the rotating cylinder drives the two push rods to rotate, according to the lever principle, one of the push rods will move away from the push plate, and the other push rod will push the push plate to move, the push plate drives the clamping block to move through the second compression spring, so that the clamping block clamps the pipe fitting, thereby avoiding the rotation of the pipe fitting during the drilling and tapping process, and avoiding the reduction of the tapping accuracy;

[0026] 4. In the present invention, when the pipe is moved to the bottom of the output end of the drilling machine, the positioning column will be inserted into the positioning groove, thereby fixing the work station plate, preventing the work station plate from driving the pipe to deviate during the processing of the pipe, thereby improving the processing accuracy of the pipe;

[0027] 5. In the present invention, when the positioning column drives the station disk to deflect, the spring can drive the rotating rod to rotate to the initial position, thereby facilitating the positioning of the next station and making the tapping accuracy of the pipe fitting higher;

[0028] 6. In the present invention, when the direction adjustment mechanism drives the work station disk to change direction, the work station disk drives one end of the clockwork spring to rotate through the rotating rod, and the clockwork spring elastically contracts. Since the maximum torsion angle of the clockwork spring is less than 180°, when the rotating rod rotates 180°, the protrusion will fall out of the slot and slide into another slot, avoiding affecting the rotation of the work station disk. Since the two slots are symmetrically distributed about the axis of the spring box, after the clockwork spring rotates 180°, it can continue to correct the work station disk, and the correction angle remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall side structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the overall bottom-up structure of the present invention.

[0031] Figure 3 It is a schematic diagram of the overall top view of the structure of the present invention.

[0032] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at point A in the middle.

[0033] Figure 5 It is a structural schematic diagram of the installation cross section of the positioning mechanism in the present invention.

[0034] Figure 6 It is a schematic diagram of the structure of the turntable in the present invention when viewed from above.

[0035] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of point B in the middle.

[0036] Figure 8 It is a schematic diagram of the structure inside the deviation correction component of the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the installation of the clamping mechanism in the present invention.

[0038] In the attached drawings: 1, workbench; 2, drilling machine; 3, turntable; 4, work station plate; 5, tapping machine; 6, positioning mechanism; 61, positioning slot; 62, connecting rod; 63, first mounting frame; 64, storage slot; 65, first compression spring; 66, positioning column; 7, power mechanism; 71, second mounting frame; 72, servo motor; 73, transmission pair; 8, clamping mechanism; 81, mounting cavity; 82, push plate; 83, second compression spring; 84, fixed shaft; 85, rotating cylinder; 86, push rod; 87, clamping block; 88, mounting hole; 89, dial plate ;810, movable hole;9, rotating tube;10, fixed rod;11, discharging mechanism;111, pushing head;112, cylinder;113, through hole;12, fixing plate;13, rotating rod;14, adjustment mechanism;141, first bevel gear;142, bearing plate;143, arc-shaped bevel gear;144, mounting groove;145, second bevel gear;146, third bevel gear;147, transmission rod;15, workpiece groove;16, deviation correction component;161, card slot;162, spring;163, spring box;164, protrusion. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] like Figure 1-Figure 7 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention comprises a workbench 1, a rotating tube 9 is rotatably connected to the workbench 1, a turntable 3 is fixedly connected to the top of the rotating tube 9, a plurality of rotating rods 13 are rotatably connected to the turntable 3, the plurality of rotating rods 13 are evenly distributed around the axis of the turntable 3, a plurality of rotating rods 13 are fixedly connected to the tops of station disks 4, each of the station disks 4 is provided with a workpiece groove 15 on the top, the workpiece groove 15 is used to place pipe fittings, a drilling machine 2 and a tapping machine 5 are also installed on the workbench 1, the output ends of the drilling machine 2 and the tapping machine 5 are respectively located above two adjacent station disks 4, and the tapping machine 5 is located on one side of the drilling machine 2 along the rotation direction of the turntable 3, and further comprises:

[0042] A discharge mechanism 11, wherein a fixed rod 10 is fixedly connected to the workbench 1, and one end of the fixed rod 10 extending into the turntable 3 is fixedly connected to a fixed plate 12, and the discharge mechanism 11 is mounted on the fixed plate 12, and the discharge mechanism 11 is used to discharge the completed workpieces in the workpiece slot 15;

[0043] A power mechanism 7, wherein the power mechanism 7 is installed on the workbench 1, and the output end of the power mechanism 7 is connected to the rotating tube 9, and the power mechanism 7 is used to drive the rotating tube 9 to rotate intermittently, and the rotating tube 9 drives the turntable 3 to rotate intermittently by one station;

[0044] The direction-adjusting mechanism 14 is installed on the turntable 3. Multiple output ends of the direction-adjusting mechanism 14 are respectively connected to multiple rotating rods 13. The other end of the direction-adjusting mechanism 14 is installed on the fixed rod 10. When the power mechanism 7 drives the turntable 3 to rotate, the direction-adjusting mechanism 14 is used to drive one of the rotating rods 13 to rotate 180°, and the rotating rod 13 drives the work station 4 to rotate 180°, thereby reversing the pipe fitting, which is convenient for drilling and tapping the other end of the pipe fitting. There is no need for manual reversing by the staff, which improves the work efficiency and ensures the tapping accuracy.

[0045] like Figure 3-Figure 4 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the discharge mechanism 11 includes a cylinder 112 fixedly mounted on a fixed plate 12, the movable end of the cylinder 112 is fixedly connected with a push head 111, a plurality of through holes 113 are opened on the turntable 3, and the plurality of through holes 113 are respectively connected with a plurality of workpiece grooves 15, the push head 111 is located on one side of the tapping machine 5 along the rotation direction of the turntable 3, and the position toward which the movable end of the cylinder 112 faces is the discharge position.

[0046] like Figure 2 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the power mechanism 7 includes a second mounting frame 71 fixedly connected to the workbench 1, a servo motor 72 is fixedly mounted on the second mounting frame 71, and a transmission pair 73 is connected between the output shaft of the servo motor 72 and one end of the rotating tube 9.

[0047] The transmission pair 73 is a gear pair.

[0048] like Figure 3-Figure 7As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the direction adjustment mechanism 14 includes a plurality of mounting grooves 144 provided on the turntable 3, one end of the rotating rod 13 extending into the mounting groove 144 is fixedly connected to a second bevel gear 145, a plurality of transmission rods 147 are rotatably connected to the turntable 3, one end of the transmission rod 147 located in the mounting groove 144 is fixedly connected to a third bevel gear 146, the third bevel gear 146 is meshedly connected to the second bevel gear 145, and the plurality of transmission rods 147 are rotatably connected to the turntable 3, and the third bevel gear 146 is meshedly connected to the second bevel gear 145. One end of the transmission rod 147 located on the inner side of the turntable 3 is fixedly connected to the first bevel gear 141. The direction adjustment mechanism 14 also includes a supporting plate 142 fixedly connected to the fixed rod 10, and an arcuate bevel gear 143 is fixedly connected to the supporting plate 142. Multiple first bevel gears 141 can all engage with the arcuate bevel gear 143. The arcuate bevel gear 143 is located on one side of the tapping machine 5 along the rotation direction of the turntable 3, and the number of teeth on the arcuate bevel gear 143 is half of the teeth of the first bevel gear 141.

[0049] After the staff has loaded the material, the power mechanism 7 drives the rotating rod 13 and the turntable 3 to rotate, and the turntable 3 drives the work station plate 4 and the pipe fitting to pass through the drilling machine 2 and the tapping machine 5 in sequence. The drilling machine 2 and the tapping machine 5 drill and tap one end of the pipe fitting respectively. As the turntable 3 rotates, when the turntable 3 drives the first bevel gear 141 to rotate to the arc bevel gear 143, the first bevel gear 141 and the arc bevel gear 143 are meshed. Since the arc bevel gear 143 is fixed, under the reaction force, the first bevel gear 14 1 drives the transmission rod 147 and the third bevel gear 146 to rotate, the third bevel gear 146 drives the second bevel gear 145 and the rotating rod 13 to rotate, the rotating rod 13 drives the station plate 4 to rotate 180 degrees, so as to complete the direction adjustment of the pipe fitting, and then the power mechanism 7 drives the turntable 3 to continue to rotate, so that the pipe fitting after the direction change passes through the drilling machine 2 and the tapping machine 5 again, the drilling machine 2 and the tapping machine 5 drill and tap the end of the pipe fitting again, so as to complete the tapping work on both ends of the pipe fitting, and then the pipe fitting can be discharged.

[0050] like Figure 4-Figure 5 and Fig. 9 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in order to prevent the pipe from rotating during the drilling and tapping process, thereby affecting the tapping accuracy, in this embodiment, it also includes a plurality of clamping mechanisms 8, and the plurality of clamping mechanisms 8 are respectively installed on a plurality of workstation disks 4, and the output end of the clamping mechanism 8 is connected to the workpiece groove 15, and the clamping mechanism 8 is used to clamp the pipe to prevent the pipe from rotating.

[0051] like Figure 4-Figure 5 and Fig. 9As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the clamping mechanism 8 includes a mounting cavity 81 opened inside the station plate 4, and the side wall of the mounting cavity 81 is provided with a plurality of mounting holes 88 connected to the workpiece groove 15, and the plurality of mounting holes 88 are equidistantly distributed, and a clamping block 87 is slidably connected inside each of the mounting holes 88, and the side of each of the clamping blocks 87 away from the workpiece groove 15 is connected to a push plate 82 through a second compression spring 83, and a plurality of fixed shafts 84 are fixedly connected inside the mounting cavity 81, and the fixed shafts 84 The number of the fixing holes 84 is one less than the number of the mounting holes 88, and each of the fixing shafts 84 is located between two adjacent mounting holes 88, each of the fixing shafts 84 is rotatably connected to a rotating cylinder 85, and each of the sides of the rotating cylinder 85 is fixedly connected to two symmetrical push rods 86, one ends of the two push rods 86 are respectively abutted against the sides of the two push plates 82 adjacent thereto, and each of the sides of the rotating cylinder 85 is fixedly connected to a shift plate 89, one end of the shift plate 89 extends to the interior of the workpiece slot 15, and a movable hole 810 for the shift plate 89 to move is opened on the work station disk 4.

[0052] When the pipe fitting is inserted into the workpiece groove 15, one end of the pipe fitting will push the paddle plate 89 to rotate, the paddle plate 89 drives the rotating cylinder 85 to rotate, the rotating cylinder 85 drives the two push rods 86 to rotate, according to the lever principle, one of the push rods 86 will move away from the push plate 82, and the other push rod 86 will push the push plate 82 to move, and the push plate 82 drives the clamping block 87 to move through the second compression spring 83, so that the clamping block 87 clamps the pipe fitting.

[0053] like Figure 1 and Figure 4-Figure 5 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in order to improve the tapping accuracy of pipe fittings, in this embodiment, it also includes a positioning mechanism 6, the positioning mechanism 6 is installed on the fixed plate 12, and the multiple output ends of the positioning mechanism 6 are respectively plugged into multiple workstations 4, and the positioning mechanism 6 is used to accurately position the workstation 4.

[0054] As shown Figure 4-Figure 5As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the positioning mechanism 6 includes a connecting rod 62 fixedly connected to the fixed plate 12, the top of the connecting rod 62 is fixedly connected to a first mounting frame 63, the bottom of the first mounting frame 63 is provided with a plurality of receiving grooves 64, each of the receiving grooves 64 corresponds to a work station, a positioning column 66 is slidably connected inside the receiving groove 64, a first compression spring 65 is connected between the positioning column 66 and the receiving groove 64, and each of the work station disks 4 is provided with two positioning grooves 61 adapted to the positioning column 66, the two positioning grooves 61 are symmetrically distributed about the axis of the work station disk 4, in order to facilitate the positioning column 66 to be automatically moved out of the positioning groove 61, the end of the positioning column 66 close to the work station disk 4 is set to a hemispherical shape, when the positioning column 66 is inserted into the positioning groove 61, the axis of the workpiece slot 15 faces the axis of the turntable 3.

[0055] When the pipe moves to below the output end of the drilling machine 2, the positioning column 66 will be inserted into the positioning groove 61, thereby fixing the work station 4 to prevent the work station 4 from causing the pipe to deviate. When the turntable 3 drives the work station 4 to continue to rotate, the positioning groove 61 can push the positioning column 66 out, thereby enabling the positioning column 66 to move out automatically.

[0056] like Figure 6-Figure 7 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention is provided. During the process of the positioning column 66 moving out of the positioning groove 61, since the work station disk 4 is not fixed, the positioning column 66 may drive the work station disk 4 to deflect by a certain angle, resulting in the subsequent positioning column 66 being unable to be inserted into the positioning groove 61, thereby affecting the processing accuracy of the pipe fitting. Therefore, in this embodiment, a correction component 16 is also included. The correction component 16 is installed on the turntable 3, and the output end of the correction component 16 is connected to the rotating rod 13. The correction component 16 is used to correct the angle of the work station disk 4 so that the workpiece groove 15 on the work station disk 4 is always facing the axial direction of the turntable 3, which is convenient for the positioning mechanism 6 to position the work station disk 4.

[0057] like Figure 6-Figure 8 As shown, a tapping and drilling integrated CNC machine tool provided by the present invention, in this embodiment, the deviation correction component 16 includes a spring box 163, the spring box 163 is fixedly connected to the turntable 3, and the axis of the spring box 163 coincides with the axis of the rotating rod 13, and a spring spring 162 is installed inside the spring box 163, the output end of the spring spring 162 is fixedly connected to the rotating rod 13, and the other end of the spring spring 162 is slidably connected to the inner wall of the spring box 163;

[0058] In order to fix the spring 162 and prevent it from affecting the rotation of the rotating rod 13, a protrusion 164 is provided at the end of the spring 162. Two symmetrical slots 161 are provided on the inner side wall of the spring box 163. The protrusion 164 is engaged with one of the slots 161. Initially, the axis of the workpiece slot 15 faces the axial direction of the work station 4.

[0059] In order to avoid affecting the reversal of the workpiece groove 15, the maximum torsion angle of the spring spring 162 is less than 180°.

[0060] When the positioning column 66 drives the work station disk 4 to deflect, the clockwork spring 162 can drive the rotating rod 13 to rotate to the initial position. When the adjustment mechanism 14 drives the work station disk 4 to change direction, the work station disk 4 drives the rotating rod 13 to rotate, and the rotating rod 13 drives one end of the clockwork spring 162 to rotate, and the clockwork spring 162 elastically contracts. Since the maximum torsion angle of the clockwork spring 162 is less than 180°, when the rotating rod 13 rotates 180°, the protrusion 164 will disengage from the slot 161 and slide into the other slot 161, avoiding affecting the rotation of the work station disk 4. Since the two slots 161 are symmetrically distributed about the axis of the spring box 163, after the clockwork spring 162 rotates 180°, it can continue to correct the work station disk 4, and the correction angle remains unchanged.

[0061] Working principle:

[0062] Insert the pipe fitting from one end of the vacant work station disk 4 into the workpiece slot 15, the clamping mechanism 8 clamps the workpiece slot 15, the servo motor 72 drives the rotating tube 9 and the turntable 3 to rotate through the transmission pair 73, the turntable 3 drives the work station disk 4 and the pipe fitting to rotate one station, and the subsequent idle work station disk 4 continues to be fed, and then the power mechanism 7 intermittently drives the turntable 3 to rotate, when the work station disk 4 drives the pipe fitting to rotate to the bottom of the drilling machine 2, the drilling machine 2 drills one end of the pipe fitting, and when the pipe fitting rotates to the bottom of the tapping machine 5, the tapping machine 5 taps the hole on the pipe fitting, as the turntable 3 rotates, when the turntable 3 drives the first bevel gear 141 to rotate to the arc When the first bevel gear 141 is at the arc bevel gear 143, the first bevel gear 141 and the arc bevel gear 143 are meshed. Under the reaction force, the first bevel gear 141 drives the transmission rod 147 and the third bevel gear 146 to rotate, the third bevel gear 146 drives the second bevel gear 145 and the rotating rod 13 to rotate, and the rotating rod 13 drives the station disk 4 to rotate 180°, thereby completing the direction adjustment of the pipe fitting, and then the power mechanism 7 drives the turntable 3 to continue to rotate, so that the pipe fitting after the reversal passes through the drilling machine 2 and the tapping machine 5 again, and the drilling machine 2 and the tapping machine 5 drill and tap the other end of the pipe fitting again, thereby completing the tapping work on both ends of the pipe fitting;

[0063] Then the discharging stage is carried out, and the discharging mechanism 11 is started. When the pipe fittings with tapping at both ends are rotated to the discharging position, when the turntable 3 stops rotating, the cylinder 112 drives the push head 111 to push out the pipe fittings in the workpiece groove 15. After the turntable 3 rotates one circle, that is, 360°, the discharging stage ends, and when the turntable 3 rotates one circle again, the discharging stage starts again, that is, every time the turntable 3 rotates two circles, the discharging mechanism 11 will be started once, and this cycle can be continued to work.

[0064] The device can also use an automatic loading device for automatic loading, which can reduce the workload of the staff.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tapping and drilling integrated CNC machine tool, comprising a workbench (1), characterized in that: The workbench (1) is rotatably connected to a rotating tube (9), the top of the rotating tube (9) is fixedly connected to a rotating disk (3), the rotating disk (3) is rotatably connected to a plurality of rotating rods (13), the plurality of rotating rods (13) are evenly distributed around the axis of the rotating disk (3), the tops of the plurality of rotating rods (13) are fixedly connected to a work station disk (4), the top of each of the work station disks (4) is provided with a workpiece slot (15), the workbench (1) is also equipped with a drilling machine (2) and a tapping machine (5), the output ends of the drilling machine (2) and the tapping machine (5) are respectively located above two adjacent work stations (4), and the tapping machine (5) is located on one side of the drilling machine (2) along the rotation direction of the rotating disk (3), and further comprises: A discharge mechanism (11), wherein a fixed rod (10) is fixedly connected to the workbench (1), one end of the fixed rod (10) extending into the interior of the turntable (3) is fixedly connected to a fixed plate (12), and the discharge mechanism (11) is mounted on the fixed plate (12), and the discharge mechanism (11) is used to discharge a completed workpiece in the workpiece slot (15); A power mechanism (7), the power mechanism (7) being mounted on the workbench (1), the output end of the power mechanism (7) being connected to the rotating tube (9), and the power mechanism (7) being used to drive the rotating tube (9) to rotate intermittently; a direction adjustment mechanism (14), the direction adjustment mechanism (14) being mounted on the rotating disk (3), the plurality of output ends of the direction adjustment mechanism (14) being respectively connected to the plurality of rotating rods (13), the other end of the direction adjustment mechanism (14) being mounted on the fixed rod (10), and when the power mechanism (7) drives the rotating disk (3) to rotate, the direction adjustment mechanism (14) is used to drive one of the rotating rods (13) to rotate 180 degrees; The discharge mechanism (11) comprises a cylinder (112) fixedly mounted on a fixed plate (12); a pusher head (111) is fixedly connected to a movable end of the cylinder (112); a plurality of through holes (113) are provided on the turntable (3); the plurality of through holes (113) are respectively connected to a plurality of workpiece slots (15); the pusher head (111) is located on one side of the tapping machine (5) along the rotation direction of the turntable (3); and the position toward which the movable end of the cylinder (112) faces is a discharge position; The direction adjustment mechanism (14) comprises a plurality of mounting grooves (144) formed on the rotating disk (3); one end of the rotating rod (13) extending into the mounting groove (144) is fixedly connected to a second bevel gear (145); a plurality of transmission rods (147) are rotatably connected to the rotating disk (3); one end of the transmission rod (147) located in the mounting groove (144) is fixedly connected to a third bevel gear (146); the third bevel gear (146) is meshingly connected to the second bevel gear (145); and the plurality of transmission rods (147) are located on the inner side of the rotating disk (3). One end of each of the tapping machines (5) is fixedly connected to a first bevel gear (141), the direction adjustment mechanism (14) further comprising a bearing plate (142) fixedly connected to the fixing rod (10), an arcuate bevel gear (143) fixedly connected to the bearing plate (142), a plurality of the first bevel gears (141) being capable of meshing with the arcuate bevel gears (143), the arcuate bevel gears (143) being located on one side of the tapping machine (5) along the rotation direction of the rotating disk (3), and the number of teeth on the arcuate bevel gears (143) being half of the number of teeth on the first bevel gears (141).

2. The integrated tapping and drilling CNC machine tool according to claim 1, characterized in that: The power mechanism (7) comprises a second mounting frame (71) fixedly connected to the workbench (1), a servo motor (72) being fixedly mounted on the second mounting frame (71), and a transmission pair (73) being connected between an output shaft of the servo motor (72) and one end of the rotating tube (9).

3. The integrated tapping and drilling CNC machine tool according to claim 1, characterized in that: It also comprises a plurality of clamping mechanisms (8), wherein the plurality of clamping mechanisms (8) are respectively mounted on a plurality of workstation discs (4), the output ends of the clamping mechanisms (8) being in communication with the workpiece grooves (15), and the clamping mechanisms (8) being used to clamp the pipe fittings.

4. The integrated tapping and drilling CNC machine tool according to claim 3, characterized in that: The clamping mechanism (8) comprises a mounting cavity (81) formed inside the work station plate (4), a plurality of mounting holes (88) connected to the workpiece groove (15) are formed on a side wall of the mounting cavity (81), the plurality of mounting holes (88) being equidistantly distributed, a clamping block (87) being slidably connected inside each of the mounting holes (88), a side of each of the clamping blocks (87) facing away from the workpiece groove (15) being connected to a push plate (82) via a second compression spring (83), a plurality of fixed shafts (84) being fixedly connected inside the mounting cavity (81), the number of the fixed shafts (84) being one less than the number of the mounting holes (88). Each of the fixed shafts (84) is located between two adjacent mounting holes (88); each of the fixed shafts (84) is rotatably connected to a rotating cylinder (85); a side of each of the rotating cylinders (85) is fixedly connected to two symmetrical push rods (86); one end of the two push rods (86) respectively abuts against the side of two adjacent push plates (82); a side of each of the rotating cylinders (85) is fixedly connected to a shift plate (89); one end of the shift plate (89) extends into the interior of the workpiece groove (15); and a movable hole (810) for the shift plate (89) to move is provided on the work station disk (4).

5. The integrated tapping and drilling CNC machine tool according to claim 1, characterized in that: It also comprises a positioning mechanism (6), the positioning mechanism (6) being mounted on a fixed plate (12), a plurality of output ends of the positioning mechanism (6) being respectively plugged into a plurality of workstation trays (4), the positioning mechanism (6) being used to accurately position the workstation trays (4).

6. The integrated tapping and drilling CNC machine tool according to claim 5, characterized in that: The positioning mechanism (6) comprises a connecting rod (62) fixedly connected to a fixing plate (12); a first mounting frame (63) is fixedly connected to the top of the connecting rod (62); a plurality of receiving grooves (64) are provided at the bottom of the first mounting frame (63); each of the receiving grooves (64) corresponds to a work station; a positioning column (66) is slidably connected inside the receiving groove (64); a first compression spring (65) is connected between the positioning column (66) and the receiving groove (64); each of the work station disks (4) is provided with two positioning grooves (61) matched with the positioning column (66); the two positioning grooves (61) are symmetrically distributed about the axis of the work station disk (4); an end of the positioning column (66) close to the work station disk (4) is set to be hemispherical; when the positioning column (66) is inserted into the positioning groove (61), the axis of the workpiece slot (15) faces the axis of the turntable (3).

7. The integrated tapping and drilling CNC machine tool according to claim 1 or 5, characterized in that: It also comprises a deviation correction component (16), the deviation correction component (16) being mounted on the turntable (3), the output end of the deviation correction component (16) being connected to the rotating rod (13), and the deviation correction component (16) being used to correct the angle of the workstation disc (4).

8. The integrated tapping and drilling CNC machine tool according to claim 7, characterized in that: The deviation-correcting assembly (16) comprises a spring box (163), the spring box (163) being fixedly connected to the rotating disk (3), and the axis of the spring box (163) coincides with the axis of the rotating rod (13), a spring spring (162) being installed inside the spring box (163), the output end of the spring spring (162) being fixedly connected to the rotating rod (13), and the other end of the spring spring (162) being slidably connected to the inner wall of the spring box (163); A protrusion (164) is provided at the end of the clockwork spring (162), and two symmetrical slots (161) are provided on the inner side wall of the spring box (163). The protrusion (164) is engaged with one of the slots (161), and initially, the axis of the workpiece slot (15) faces the axial direction of the work station disk (4); The maximum torsion angle of the clockwork spring (162) is less than 180°.

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