Punching and tapping machine tool for metal parts

Abstract

The invention relates to the technical field of tapping machine tools, in particular to a metal part perforating and tapping machine tool which comprises a machine tool body and a screw tap, two moving tables are vertically arranged on the machine tool body in a sliding mode, the two moving tables are distributed up and down, the moving tables move in the sliding interval of the moving tables, and the two moving tables are connected through a first spring; a butt-joint seat is arranged on the moving table, butt-joint heads are arranged at the upper end and the lower end of the screw tap, and the butt-joint seat and the butt-joint heads are used in a matched mode; a power unit used for providing power for movement of the two movable tables is arranged on the lathe bed. By means of the design, the screw tap can complete tapping machining on two metal pieces within one up-down moving period, the operation step that in a traditional technology, tapping needs to be conducted every time, and then thread retreating is needed is omitted, the machining time is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machine tools, in particular to a metal part perforating and tapping machine tool. Background Art

[0002] In modern manufacturing, metal processing is an indispensable part, especially in industries such as machinery manufacturing, automobile industry, aerospace, and electronic equipment. There are many processing methods for metal parts, such as bending, welding, stamping, shearing, punching, tapping, etc. Among them, tapping is to process threads on the inner wall of a circular hole to facilitate use with other threaded structures.

[0003] In traditional tapping work, the machine tool controls the tap to rotate directly through the circular hole on the metal part, so that the tap processes the inner wall of the circular hole into a threaded shape, and then controls the tap to rotate in the opposite direction and exit the circular hole, thereby completing the tapping work, and then the circular hole on the next metal part can be processed. This processing method requires a wire withdrawal operation when completing the tapping process, that is, the tap needs to be rotated in the opposite direction and exit the circular hole, which results in a waste of time during the wire withdrawal operation, and the tap needs to be controlled and moved in both directions, and frequent bidirectional rotation will damage the motor on the machine tool and affect the service life of the equipment. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a metal part punching and tapping machine tool, and the specific technical solution adopted is: According to a first aspect of the present invention, a metal part punching and tapping machine is provided, comprising a bed and a tap, wherein two movable platforms are vertically slidably arranged on the bed, the two movable platforms are distributed up and down, and the movable platforms move within their sliding ranges, the two movable platforms are connected by a first spring, a docking seat is arranged on the movable platform, and docking joints are arranged at both upper and lower ends of the tap, and the docking seat and the docking joint are used in coordination; Among them, the bed is provided with a power unit for providing power for the movement of the two moving platforms. When the tap moves downward and passes through the circular hole on the metal part, the docking head and the docking seat on the lower side of the tap are docked, the docking seat and the docking head on the upper side of the tap are separated, the tap passes through the metal part and moves to the bottom of the metal part. When the tap moves upward and passes through the circular hole on the metal part, the docking head and the docking seat on the upper side of the tap are docked, the docking seat and the docking head on the lower side of the tap are separated, the tap passes through the metal part and moves above the metal part.

[0005] Furthermore, the docking seat comprises a square barrel, the opening of the square barrel faces the tap, the end of the square barrel away from the tap is sealed, an oil cavity is provided in the square barrel, a plurality of blocks are provided on each inner side wall of the square barrel, the blocks are horizontally slidably inserted into the oil cavity, and the ends of the blocks in the oil cavity are arranged as inclined surfaces; The butt joint comprises a square column arranged at the end of the tap, and a plurality of slots are opened on the outer wall of the square column; Among them, the square barrel is used in conjunction with the square column, and the card block is used in conjunction with the card slot.

[0006] Furthermore, an air passage is provided inside the tap, a chip removal groove is provided on the outer wall of the tap, a plurality of air holes are obliquely provided in the chip removal groove, the air holes are connected to the air passage, and the oblique direction of the air holes is opposite to the rotation direction of the tap.

[0007] Furthermore, the tap and the square column are connected via a connecting structure; The connection structure comprises a connecting sleeve fixed on the end of the tap and a plug-in sleeve fixed on the square column, the outer circumferential wall of the connecting sleeve is composed of a large circle close to the tap and a small circle far away from the tap, and the small circle is provided with a plurality of slide grooves along the axis direction of the tap, the plug-in sleeve is slidably sleeved on the small circle on the connecting sleeve, an outer edge is provided on the outer circumferential wall of the plug-in sleeve, and a plurality of plug-in edges used in conjunction with the slide grooves are provided on the inner wall of the plug-in sleeve; Among them, a threaded ring is rotatably sleeved on the outer wall of the plug-in sleeve, the outer edge is located on the inner side of the threaded ring and is used to clamp the threaded ring, and a thread is provided on the large circle of the connecting sleeve, and the threaded ring is screwed and connected to the thread on the connecting sleeve.

[0008] Furthermore, the interior of the square column and the interior of the connecting sleeve are both hollow, and the square column is connected to the airway through the plug-in sleeve and the connecting sleeve; The square column has an opening at the end away from the tap, a cover plate is arranged inside the square column, the cover plate slides along the length direction of the square column, and the cover plate is used to block the opening, the cover plate and the square column are connected by a spring sheet, and a push rod for pushing the cover plate is arranged inside the square barrel; Among them, a conveying unit is arranged on the moving platform, and the conveying unit is used for conveying hydraulic oil and gas into the oil cavity and the square barrel.

[0009] Furthermore, a rotating wheel is rotatably interspersed on the moving platform, and the square barrel passes through the rotating wheel; The conveying unit includes a support plate arranged on a movable platform, an oil pipe and an air pipe are arranged on the support plate, the oil pipe is communicated with the oil cavity, and the oil pipe is rotatably connected with the square barrel, and the air pipe passes through the oil pipe and the square barrel and is communicated with the inside of the square barrel.

[0010] Furthermore, the square barrel slides relative to the rotating wheel along the axis direction of the rotating wheel, and the square barrel is connected to the rotating wheel via a plurality of second springs, and the support plates pass through the moving platform and are slidably connected to each other.

[0011] Furthermore, the power unit includes a first motor fixed on the bed, a threaded rod is provided at the output end of the first motor, a threaded sleeve is screwed on the threaded rod, a push plate is provided on the threaded sleeve, the push plate is vertically slidably installed on the bed, and the push plate is located between the two moving platforms.

[0012] Furthermore, an outer prism tube and an inner cooling column which are sleeved and slidably connected to each other are arranged between the two moving platforms, a transmission wheel is rotatably arranged on each moving platform, the outer prism tube is fixedly connected to one transmission wheel, the inner cooling column is fixedly connected to another transmission wheel, and a second motor is arranged on one moving platform, and the second motor provides rotational power for the transmission wheel; The transmission wheel and the rotating wheel on the moving platform are driven by a transmission belt.

[0013] The beneficial effects of the present invention are: Through the design, the tap can complete the tapping of two metal parts in one up and down movement cycle, eliminating the operation step of withdrawing the wire after each tapping in the traditional process, greatly reducing the processing time and improving production efficiency; because the tapping process is carried out in a unidirectional rotation manner, the wear on the motor caused by frequently changing the rotation direction of the tap in the traditional method is avoided, the service life of the equipment is extended and the maintenance cost is reduced; in the process of the movement of the two mobile platforms, the tap can achieve a smooth transition from one mobile platform to another, which not only ensures the continuity of the processing process, but also avoids the risk of thread damage or metal part damage caused by pauses, and improves the continuity and smoothness of the transition work; the unidirectional rotation design reduces the number of motor starts and stops, helps to reduce energy consumption, and is in line with the trend of modern manufacturing industry to pursue energy conservation and environmental protection; in summary, the technical solution of this metal part perforating and tapping machine not only solves the problems existing in the traditional processing method, but also optimizes and improves the performance in many aspects, which is of great significance for promoting technological progress in the metal processing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of a mobile station and structures thereon in an embodiment of the present invention; Figure 3 yes Figure 2 A schematic diagram of the structure from another perspective; Figure 4 is a schematic cross-sectional structural diagram of a docking seat in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the tap and the butt joint in the embodiment of the present invention; Figure 6 is a schematic cross-sectional view of a tap and a butt joint in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a butt joint in an embodiment of the present invention.

[0016] Reference numerals: 1. Bed; 2. Tap; 3. Moving table; 4. First spring; 5. Docking seat; 6. Docking head; 7. Fixed table; 8. Square barrel; 9. Oil chamber; 10. Block; 11. Inclined surface; 12. Square column; 13. Slot; 14. Airway; 15. Air hole; 16. Connecting sleeve; 17. Insert sleeve; 18. Outer edge; 19. Insert edge; 20. Threaded ring; 21. Through port; 22. Cover plate; 23. Shrapnel; 24. Push rod; 25. Rotating wheel; 26. Support plate; 27. Oil pipe; 28. Air pipe; 29. ​​Second spring; 30. First motor; 31. Threaded rod; 32. Threaded sleeve; 33. Push plate; 34. Second motor; 35. Outer edge tube; 36. Inner cooling column; 37. Transmission wheel; 38. Transmission belt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0020] like Figures 1 to 7 As shown, a metal part perforating and tapping machine tool of the present invention comprises a bed 1 and a tap 2, two movable tables 3 are vertically slidably arranged on the bed 1, the two movable tables 3 are distributed up and down, and the movable tables 3 move within their sliding ranges, the two movable tables 3 are connected by a first spring 4, a docking seat 5 is arranged on the movable table 3, and docking joints 6 are arranged at both upper and lower ends of the tap 2, and the docking seat 5 and the docking joint 6 are used in coordination; Among them, the bed 1 is provided with a power unit for providing power for the movement of the two moving platforms 3. When the tap 2 moves downward and passes through the circular hole on the metal part, the docking head 6 on the lower side of the tap 2 is docked with the docking seat 5, and the docking seat 5 and the docking head 6 on the upper side of the tap 2 are separated, and the tap 2 passes through the metal part and moves to the bottom of the metal part. When the tap 2 moves upward and passes through the circular hole on the metal part, the docking head 6 on the upper side of the tap 2 is docked with the docking seat 5, and the docking seat 5 and the docking head 6 on the lower side of the tap 2 are separated, and the tap 2 passes through the metal part and moves above the metal part.

[0021] In detail, the bed 1 is used to support the tap 2, the movable table 3, the first spring 4, the docking seat 5 and the docking head 6. The tap 2 is mainly used to perform tapping processing on the circular holes on the metal parts. The tap 2 is vertical and the tap 2 reciprocates up and down. The movement power of the tap 2 is mainly provided by the two movable tables 3. The power of the movable tables 3 is mainly provided by the power unit. The first spring 4 between the two movable tables 3 is used to provide elastic tension for the two movable tables 3. The movable table 3 moves within its activity range. The docking seat 5 and the docking head 6 can achieve the purpose of docking and fixing the tap 2. When the docking seat 5 rotates, it will drive the tap 2 to rotate through the docking head 6, and the two sets of docking seats 5 rotate synchronously and in the same direction.

[0022] When in use, the metal part is fixed on the fixed platform 7, and there is a hole on the fixed platform 7 for the tap 2 to pass through. The tap 2 is located on the upper side of the fixed platform 7, and the docking seat 5 and the docking head 6 on the upper side of the tap 2 dock and fix the tap 2. The power unit pushes the upper movable platform 3 to move downward. At this time, the upper movable platform 3 will carry the tap 2 to move downward synchronously. The tap 2 is in a self-rotating state, and the docking head 6 on the lower side of the tap 2 can smoothly pass through the circular hole on the tap 2. When the tap 2 moves to the position of the metal part, the tap 2 passes through the circular hole on the metal part and performs tapping processing on the metal part. When the tap 2 moves down to the specified position, the docking head 6 on the lower side of the tap 2 docks with the docking seat 5 on the lower movable platform 3, and the two movable platforms 3 move downward synchronously. When the upper movable platform 3 moves to the specified When the screw threading machine 2 is in the working state, the tapping process of the metal part is completed, the metal part is replaced, and the tap 2 is controlled to move upward in the opposite direction. At this time, the tap 2 performs tapping on the metal part again, thereby realizing a one-way tapping process of the metal part by the tap 2, that is, within one cycle of the up and down movement of the tap 2, it can tap two metal parts without the need to perform the wire withdrawal operation as in the traditional method, thereby simplifying the tapping method and improving the work efficiency. In addition, there is no need to frequently adjust the rotation direction of the tap 2, and the tap 2 only needs to be rotated in one direction at all times, which is convenient for protecting the machine tool equipment.

[0023] It should be pointed out that, during the movement of the two mobile platforms 3, the tap 2 realizes the handover work from one mobile platform 3 to the other mobile platform 3, that is, the tap 2 can complete the handover during the tapping process, thereby improving the continuity of the tapping work, avoiding the tap 2 from pausing and the tap 2 from continuously rotating, causing the tap 2 to collide with the thread on the metal part and cause damage to the tap 2 or the metal part.

[0024] The tap 2 is designed to complete the tapping of two metal parts within one up-and-down movement cycle, eliminating the need to withdraw the thread after each tapping in the traditional process, greatly reducing the processing time and improving production efficiency; since the tapping process is performed in a unidirectional rotation manner, the wear on the motor caused by frequently changing the rotation direction of the tap 2 in the traditional method is avoided, the service life of the equipment is extended and the maintenance cost is reduced; in the process of the movement of the two moving platforms 3, the tap 2 can achieve a smooth transition from one moving platform 3 to another moving platform 3, which not only ensures the continuity of the processing process, but also avoids the risk of thread damage or metal part damage caused by pauses, and improves the continuity and stability of the transition work; the unidirectional rotation design reduces the number of motor starts and stops, helps to reduce energy consumption, and is in line with the trend of modern manufacturing industry to pursue energy conservation and environmental protection; in summary, the technical solution of this metal part perforating and tapping machine not only solves the problems existing in the traditional processing method, but also optimizes and improves the performance in many aspects, which is of great significance for promoting technological progress in the metal processing industry.

[0025] Furthermore, the docking seat 5 includes a square barrel 8, the opening of the square barrel 8 faces the tap 2, the end of the square barrel 8 away from the tap 2 is sealed, an oil chamber 9 is opened in the square barrel 8, and a plurality of blocks 10 are arranged on each inner side wall of the square barrel 8. The blocks 10 are horizontally slidably inserted into the oil chamber 9, and the ends of the blocks 10 in the oil chamber 9 are arranged as inclined surfaces 11; The butt joint 6 comprises a square column 12 arranged at the end of the tap 2, and a plurality of slots 13 are formed on the outer wall of the square column 12; The square barrel 8 is used in conjunction with the square column 12 , and the clamping block 10 is used in conjunction with the clamping slot 13 .

[0026] In detail, when the tap 2 moves and the upper column 12 thereof is inserted into the square barrel 8, the shapes of the square column 12 and the square barrel 8 can be used to achieve the effect of mutual positioning and synchronous rotation of the square barrel 8 and the square column 12. When the slot 13 moves to the position of the block 10, hydraulic oil is supplied to the oil chamber 9. The hydraulic oil can use the inclined surface 11 to push the block 10 to move, and the block 10 slides into the slot 13, thereby achieving a stable connection between the square barrel 8 and the square column 12 to prevent them from detaching from each other, so that the docking seat 5 and the docking head 6 can achieve quick docking connection.

[0027] Furthermore, an air passage 14 is provided inside the tap 2 , a chip removal groove is provided on the outer wall of the tap 2 , a plurality of air holes 15 are obliquely provided in the chip removal groove, the air holes 15 are connected to the air passage 14 , and the oblique direction of the air holes 15 is opposite to the rotation direction of the tap 2 .

[0028] In detail, by providing a chip removal groove on the tap 2, the chips generated by tapping can be quickly discharged to prevent the chips from hindering the rotation of the tap 2. By providing the air channel 14 and the air hole 15, a high-pressure airflow can be introduced into the air channel 14, and the high-pressure airflow can be discharged through the air hole 15. In this way, the airflow can be used to blow away the chips. At the same time, since the inclination direction of the air hole 15 is opposite to the rotation direction of the tap 2, the chips can be prevented from entering the air hole 15.

[0029] Furthermore, the tap 2 and the square column 12 are connected via a connecting structure; The connection structure includes a connecting sleeve 16 fixed to the end of the tap 2 and a plug-in sleeve 17 fixed to the square column 12. The outer circumferential wall of the connecting sleeve 16 is composed of a large circle close to the tap 2 and a small circle away from the tap 2, and the small circle is provided with a plurality of slide grooves along the axis direction of the tap 2. The plug-in sleeve 17 is slidably sleeved on the small circle on the connecting sleeve 16. An outer edge 18 is provided on the outer circumferential wall of the plug-in sleeve 17, and a plurality of inserting edges 19 used in conjunction with the slide grooves are provided on the inner wall of the plug-in sleeve 17. Among them, a threaded ring 20 is rotatably sleeved on the outer wall of the plug-in sleeve 17, the outer edge 18 is located on the inner side of the threaded ring 20 and is used to lock the threaded ring 20, and a thread is set on the large circle of the connecting sleeve 16, and the threaded ring 20 is screwed to the thread on the connecting sleeve 16.

[0030] In detail, there is a shoulder position on the circumferential outer wall of the connecting sleeve 16, so that there are two areas on the circumferential outer wall of the connecting sleeve 16, namely, a large circle area and a small circle area. The large circle area is close to the tap 2 and has threads thereon, and there are multiple sliding grooves on the outer wall of the small circle area. The end of the plug-in sleeve 17 is used in conjunction with the shoulder position of the connecting sleeve 16, that is, the plug-in sleeve 17 can be slidably sleeved on the small circle on the connecting sleeve 16, and the plug-in sleeve 17 can smoothly drive the connecting sleeve 16 and the tap 2 to rotate by using the plug edge 19 and the sliding groove. This transmission direction is more stable and firm. The threaded ring 20 is stuck on the outer edge 18 and can be screwed on the large circle of the connecting sleeve 16. Therefore, the threaded ring 20 can be used to realize the fastening connection between the connecting sleeve 16 and the plug-in sleeve 17. At this time, the square column 12 and the tap 2 are fixedly connected.

[0031] Through this structural manner, the connection work between the joint 6 and the tap 2 can be achieved, and the taps 2 of different specifications can be easily replaced. At the same time, the connection work between the square column 12 and the tap 2 is completed by the threaded ring 20, and the transmission work between the square column 12 and the tap 2 is completed by the inserted edge 19 and the slide groove, which can improve the connection firmness and transmission stability, and facilitate disassembly and assembly.

[0032] Furthermore, the interior of the square column 12 and the interior of the connecting sleeve 16 are both hollow, and the square column 12 is connected to the airway 14 through the plug-in sleeve 17 and the connecting sleeve 16; The square column 12 has an opening 21 at the end away from the tap 2. A cover plate 22 is provided inside the square column 12. The cover plate 22 slides along the length direction of the square column 12 and is used to block the opening 21. The cover plate 22 is connected to the square column 12 via a spring sheet 23. A push rod 24 for pushing the cover plate 22 is provided inside the square barrel 8. A conveying unit is provided on the moving platform 3 , and the conveying unit is used to convey hydraulic oil and gas into the oil chamber 9 and the square barrel 8 .

[0033] In detail, when the docking seat 5 and the docking head 6 are separated, the spring piece 23 can push the cover plate 22 to seal the opening 21. At this time, the outside air cannot enter the airway 14. When the docking seat 5 and the docking head 6 are docked, the push rod 24 passes through the opening 21 and pushes the cover plate 22 to separate from the opening 21. At this time, the cover plate 22 stops sealing the opening 21, the spring piece 23 is elastically deformed, and the end of the square column 12 away from the tap 2 seals the inside of the square barrel 8 into a closed chamber. The conveying unit can convey the hydraulic oil and gas into the oil chamber 9 and the closed chamber respectively, thereby providing power for the movement of the block 10, and the air in the closed chamber can enter the square column 12 through the opening 21, thereby supplying high-pressure airflow to the airway 14.

[0034] It should be noted that when the hydraulic oil in the oil chamber 9 is extracted, the clamping block 10 is disengaged from the clamping groove 13 and reset.

[0035] Furthermore, a rotating wheel 25 is rotatably inserted on the moving platform 3, and the square barrel 8 passes through the rotating wheel 25; The conveying unit includes a support plate 26 arranged on the movable platform 3, on which an oil pipe 27 and an air pipe 28 are arranged. The oil pipe 27 is connected to the oil chamber 9, and the oil pipe 27 is rotatably connected to the square barrel 8. The air pipe 28 passes through the oil pipe 27 and the square barrel 8 and is connected to the inside of the square barrel 8.

[0036] In detail, the connection position between the oil pipe 27 and the square barrel 8, and the connection position between the air pipe 28 and the square barrel 8 are both vertical and coaxial with the square barrel 8, so that when the square barrel 8 and the square column 12 rotate, the oil pipe 27 and the air pipe 28 can move relative to the square barrel 8 and maintain a connected state, the hydraulic oil can be introduced into the oil chamber 9 through the oil pipe 27, and the air can be introduced into the square barrel 8 through the air pipe 28. The setting of the rotating wheel 25 is mainly to provide support for the square barrel 8.

[0037] Furthermore, the square barrel 8 slides relative to the rotating wheel 25 along the axis direction of the rotating wheel 25, and the square barrel 8 and the rotating wheel 25 are connected via a plurality of second springs 29, and the support plate 26 passes through the moving platform 3 and is slidably connected to each other.

[0038] In detail, when the tap 2 is tapping a metal part, due to the effect of the thread, the moving speed of the tap 2 cannot be accurately consistent with the moving speed of the moving platform 3. Therefore, in order to avoid jamming, it is necessary to enable the square barrel 8 to move on the rotating wheel 25, which can have a buffering effect.

[0039] The second spring 29 is mainly provided to reset the square barrel 8 on the rotating wheel 25 . Due to the shape characteristics of the square barrel 8 , the rotating wheel 25 can rotate synchronously with the square barrel 8 .

[0040] Furthermore, the power unit includes a first motor 30 fixed on the bed 1, a threaded rod 31 is provided at the output end of the first motor 30, a threaded sleeve 32 is screwed on the threaded rod 31, a push plate 33 is provided on the threaded sleeve 32, the push plate 33 is vertically slidably installed on the bed 1, and the push plate 33 is located between the two moving platforms 3.

[0041] When the upper movable platform 3 moves to the lowest point of its stroke, it stops moving, and the push plate 33 continues to move and pushes the lower movable platform 3 to move downward, and the upper butt joint 5 and the butt joint 6 are separated, thereby realizing the transfer work.

[0042] Furthermore, an outer prism tube 35 and an inner cooling column 36 are provided between the two moving platforms 3, and are sleeved and slidably connected to each other. A transmission wheel 37 is rotatably provided on each moving platform 3. The outer prism tube 35 is fixedly connected to one transmission wheel 37, and the inner cooling column 36 is fixedly connected to another transmission wheel 37. A second motor 34 is provided on one moving platform 3, and the second motor 34 provides rotational power for the transmission wheel 37. The transmission wheel 37 on the moving platform 3 and the rotating wheel 25 are transmitted through a transmission belt 38 .

[0043] In detail, the second motor 34 can drive the two transmission wheels 37 to rotate synchronously and in the same direction through the outer prism 35 and the inner cooling column 36. The transmission wheel 37 drives the square barrel 8 to rotate through the rotating wheel 25, thereby driving the tap 2 to rotate. When the two moving platforms 3 move relative to each other, the outer prism 35 and the inner cooling column 36 slide relative to each other and always maintain synchronous rotation.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A metal part punching and tapping machine tool, characterized in that: It comprises a bed and a tap, wherein two movable platforms are vertically slidably arranged on the bed, the two movable platforms are distributed up and down, and the movable platforms move within their sliding ranges, the two movable platforms are connected by a first spring, a docking seat is arranged on the movable platform, and docking joints are arranged at both the upper and lower ends of the tap, and the docking seat and the docking joint are used in coordination; Among them, the bed is provided with a power unit for providing power for the movement of the two moving platforms. When the tap moves downward and passes through the circular hole on the metal part, the docking head and the docking seat on the lower side of the tap are docked, the docking seat and the docking head on the upper side of the tap are separated, the tap passes through the metal part and moves to the bottom of the metal part. When the tap moves upward and passes through the circular hole on the metal part, the docking head and the docking seat on the upper side of the tap are docked, the docking seat and the docking head on the lower side of the tap are separated, the tap passes through the metal part and moves above the metal part.

2. A metal part punching and tapping machine according to claim 1, characterized in that: The docking seat comprises a square barrel, the opening of the square barrel faces the tap, the end of the square barrel away from the tap is sealed, an oil cavity is provided in the square barrel, a plurality of clamping blocks are provided on each inner side wall of the square barrel, the clamping blocks are horizontally slidably inserted into the oil cavity, and the ends of the clamping blocks in the oil cavity are arranged as inclined surfaces; The butt joint comprises a square column arranged at the end of the tap, and a plurality of slots are opened on the outer wall of the square column; Among them, the square barrel is used in conjunction with the square column, and the card block is used in conjunction with the card slot.

3. A metal part punching and tapping machine according to claim 2, characterized in that: An air passage is provided inside the tap, a chip removal groove is provided on the outer wall of the tap, a plurality of air holes are obliquely provided in the chip removal groove, the air holes are connected with the air passage, and the oblique direction of the air holes is opposite to the rotating direction of the tap.

4. A metal part punching and tapping machine according to claim 3, characterized in that: The tap and the square column are connected via a connecting structure; The connection structure comprises a connecting sleeve fixed on the end of the tap and a plug-in sleeve fixed on the square column, the outer circumferential wall of the connecting sleeve is composed of a large circle close to the tap and a small circle far away from the tap, and the small circle is provided with a plurality of slide grooves along the axis direction of the tap, the plug-in sleeve is slidably sleeved on the small circle on the connecting sleeve, an outer edge is provided on the outer circumferential wall of the plug-in sleeve, and a plurality of plug-in edges used in conjunction with the slide grooves are provided on the inner wall of the plug-in sleeve; Among them, a threaded ring is rotatably sleeved on the outer wall of the plug-in sleeve, the outer edge is located on the inner side of the threaded ring and is used to clamp the threaded ring, and a thread is provided on the large circle of the connecting sleeve, and the threaded ring is screwed and connected to the thread on the connecting sleeve.

5. A metal part punching and tapping machine according to claim 4, characterized in that: The interior of the square column and the interior of the connecting sleeve are both hollow, and the square column is connected to the airway through the plug-in sleeve and the connecting sleeve; The square column has an opening at the end away from the tap, a cover plate is arranged inside the square column, the cover plate slides along the length direction of the square column, and the cover plate is used to block the opening, the cover plate and the square column are connected by a spring sheet, and a push rod for pushing the cover plate is arranged inside the square barrel; Among them, a conveying unit is arranged on the moving platform, and the conveying unit is used for conveying hydraulic oil and gas into the oil cavity and the square barrel.

6. A metal part punching and tapping machine tool according to claim 5, characterized in that: The movable platform is provided with a rotating wheel, through which the square barrel passes; The conveying unit includes a support plate arranged on a movable platform, an oil pipe and an air pipe are arranged on the support plate, the oil pipe is communicated with the oil cavity, and the oil pipe is rotatably connected with the square barrel, and the air pipe passes through the oil pipe and the square barrel and is communicated with the inside of the square barrel.

7. A metal part punching and tapping machine according to claim 6, characterized in that: The square barrel slides relative to the rotating wheel along the axis direction of the rotating wheel, and the square barrel is connected to the rotating wheel via a plurality of second springs, and the support plates pass through the moving platform and are slidably connected to each other.

8. A metal part punching and tapping machine according to claim 7, characterized in that: The power unit comprises a first motor fixed on the bed, a threaded rod is arranged at the output end of the first motor, a threaded sleeve is screwed on the threaded rod, a push plate is arranged on the threaded sleeve, the push plate is vertically slidably mounted on the bed, and the push plate is located between two moving platforms.

9. A metal part punching and tapping machine tool according to claim 8, characterized in that: An outer prism tube and an inner cooling column are arranged between the two moving platforms and are connected in a sliding manner. A transmission wheel is rotatably arranged on each moving platform. The outer prism tube is fixedly connected to one transmission wheel, and the inner cooling column is fixedly connected to the other transmission wheel. A second motor is arranged on one moving platform, and the second motor provides rotational power for the transmission wheel. The transmission wheel and the rotating wheel on the moving platform are driven by a transmission belt.

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