Automatic tapping device for metal head production

Abstract

The present application relates to the field of metal head processing, and specifically to an automatic tapping device for metal head production, comprising a rotating disc capable of intermittent rotation, a plurality of grooves being formed on the outer edge of the rotating disc, a supporting plate being arranged on the lower surface of the rotating disc, the upper surface of the supporting plate and the grooves forming a work station for placing materials, and a plurality of discharge ports being formed on the outer edge of the supporting plate in a circumferential array; a plurality of sliding grooves are arranged on the outer edge of the supporting plate in a circumferential array, and a fixing assembly is arranged in each sliding groove, the fixing assembly being used for extruding and fixing the materials in the work station, and each fixing assembly comprising a sliding block capable of sliding along the sliding groove, and an arc-shaped plate being arranged on the end of the sliding block; a tapping assembly is arranged on one side of each fixing assembly; through the rotating disc type multi-station parallel layout, the feeding, tapping and discharging processes are integrated in the same rotating disc, the nine work stations are divided into three groups for synchronous operation, and the tapping processing of three metal heads can be completed in a unit time, and the efficiency is greatly improved compared with the traditional single-station piece-by-piece processing.

Description

Technical Field

[0001] This invention relates to the field of metal end cap processing, specifically an automatic tapping device for metal end cap production. Background Technology

[0002] As a key pressure-bearing component in pressure vessels, boilers, chemical equipment and other fields, metal heads are usually machined with threaded holes at their ends during the manufacturing process to connect with pipes or other components. During the threaded hole machining process, tapping is the core process for forming internal threads, and its machining efficiency directly affects the overall production cycle and manufacturing cost of the head.

[0003] Currently, the tapping process for metal heads mainly employs the traditional single-station, piece-by-piece machining method. Specifically, the existing machining mode suffers from the following efficiency problems: First, the processing method is limited to clamping and tapping one piece at a time. Most existing equipment is a single spindle or single station structure. After each metal head is tapped, the machine needs to be stopped for loading and unloading, re-clamping and positioning, and then the next piece can be processed. This serial operation mode of tapping, stopping, changing materials, and tapping again results in a very low proportion of effective tapping and cutting time and a large proportion of auxiliary time, which leads to a long single-piece processing cycle and makes it difficult to meet the needs of mass production.

[0004] Secondly, the high degree of manual intervention and frequent interference, coupled with insufficient automation, means that existing tapping equipment relies heavily on manual operation for processes such as loading, positioning, clamping, and unloading. This not only results in high labor intensity but also means that clamping errors caused by human factors directly affect thread machining accuracy, leading to increased scrap rates. Furthermore, the mismatch between manual operation speed and equipment cutting speed creates a significant bottleneck in production cycle time. Frequent contact between humans and equipment also poses potential safety hazards in case of misoperation, such as contact between clamping components and the operator, or metal debris generated during tapping being thrown at the operator.

[0005] Therefore, an automatic tapping device for the production of metal heads is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the automatic tapping device for producing metal end caps of the present invention includes a turntable that can rotate intermittently, multiple grooves are opened on the outer edge of the turntable, a support plate is provided on the lower surface of the turntable, the upper surface of the support plate and the grooves form a station for placing metal end caps, and multiple unloading ports are arranged in a circular array on the outer edge of the support plate. The outer edge of the pallet is provided with a circumferential array of multiple grooves, each groove is provided with a fixing component, the fixing component is used to press and fix the metal end cap in the work station, and each fixing component includes a slider that can slide along the groove, the end of the slider is provided with an arc plate, the arc plate is used to press and fix the metal end cap in the work station. Each of the fixed components is provided with a tapping component on one side. The tapping component includes a tap that can move up and down, and a drive mechanism that drives the tap to rotate.

[0008] Preferably, the pallet is provided with a feeding conveyor belt on its outer ring, the upper surface of the feeding conveyor belt is higher than the upper surface of the pallet, the end of the feeding conveyor belt is located close to the work station, and a push plate is provided on the outer side of the end of the feeding conveyor belt, which can push the metal end cap of the end of the feeding conveyor belt into the work station. Each of the feeding conveyors is provided with a discharging conveyor below it, and the first end of the discharging conveyor is located below the discharge port.

[0009] Preferably, guide strips are symmetrically arranged on the pallet near the feeding conveyor belt. The guide strips are used to guide the metal end caps that slide from the feeding conveyor belt into the work station.

[0010] Preferably, each of the arc-shaped plates is provided with a pressure plate, which is obliquely fixed to the arc-shaped plate by a plurality of No. 1 bolts, and the pressure plate applies an oblique downward compressive force to the metal end cap.

[0011] Preferably, the turntable has multiple stepped grooves, which are arranged to overlap with the recesses. Each stepped groove has a "C"-shaped buckle plate, and each buckle plate is fixed in the stepped groove by multiple No. 2 bolts.

[0012] Preferably, each of the grooves has an opening on its inner sidewall, and the outer sidewall of the sidewall and the inner sidewall of the groove are provided with a slot, and an anti-detachment block is provided in the slot.

[0013] Preferably, each of the arc-shaped plates has multiple No. 1 set screws internally threaded together, which are used to press the outer ring surface of the metal end cap; each of the buckle plates has multiple No. 2 set screws internally threaded together, which are used to press the upper surface of the metal end cap.

[0014] Preferably, each of the pressure plates has a plurality of No. 3 set screws threaded to its end. The end of the No. 3 set screw has a rotating groove, and a steel ball is provided in the rotating groove. The No. 3 set screw is used to assist the pressure plate and apply a downward compressive force to the metal end cap.

[0015] Preferably, each slider is provided with an oil pipe, the end of which extends obliquely toward the work station, and an oil inlet hole is radially opened on the outer surface of the oil pipe. A hollow ring is fitted around the outer ring of the oil pipe, and an oil supply pipe is connected to the outside of the hollow ring. The oil supply pipe is fixed to the support plate. The slider drives the oil pipe to move, and the oil inlet hole moves into the hollow ring. Lubricating oil enters the oil pipe along the oil inlet hole.

[0016] Preferably, the inner surface of each of the enclosures is provided with anti-slip textures, and there is a gap between the anti-slip textures and the outer surface of the metal end cap.

[0017] The advantages of this invention are: 1. In this invention, the automatic tapping device for metal heads integrates the three processes of feeding, tapping and unloading into the same turntable through a rotary multi-station parallel layout. The nine stations are divided into three groups that operate synchronously, and can complete the tapping of three metal heads per unit time, which greatly improves the efficiency compared with the traditional single-station one-by-one processing.

[0018] 2. In this invention, the combination structure of the turntable and the tray achieves efficient 360° space utilization. The groove semi-encloses the outer circle of the metal end cap and cooperates with the radial sliding and pressing of the arc plate to form a self-centering clamping, which can achieve automatic positioning and highly stable clamping and fixing, and has good consistency in batch processing.

[0019] 3. In this invention, the servo motor, cylinder, hydraulic cylinder and spindle motor are controlled by a PLC program. The entire process of indexing, clamping and positioning, cutting, reversing and unloading is completed automatically according to the preset timing sequence. The operator only needs to load the material initially, realizing unmanned continuous operation and greatly reducing the labor intensity. Attached Figure Description

[0020] Figure 1 This is a perspective view of the automatic tapping device for producing metal heads in this invention; Figure 2 This is a top view of the automatic tapping device for producing metal heads in this invention; Figure 3 This is a schematic diagram illustrating the interaction between the buckle plate and the turntable in this invention; Figure 4 This is a top view of the turntable in this invention; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a perspective view of the enclosure panel in this invention; Figure 7 This is a perspective view of the arc-shaped plate in this invention; Figure 8 This is a schematic diagram illustrating the fit between the pressure plate and the metal end cap in this invention; Figure 9 This is a perspective view of the cooperation between the pressure plate and the arc plate in this invention; Figure 10 This is a perspective view of the buckle plate in this invention.

[0021] In the diagram: 101. Metal end cap; 1. Turntable; 2. Support plate; 3. Groove; 4. Unloading port; 5. Unloading station; 6. Tapping station; 7. Loading station; 8. Slide groove; 9. Slider; 10. Arc plate; 11. Tap; 12. Hydraulic cylinder; 13. Loading conveyor belt; 14. Push plate; 15. Unloading conveyor belt; 16. Guide bar; 17. Pressure plate; 18. Bolt No. 1; 19. Stepped groove; 20. Buckle plate; 21. Bolt No. 2; 22. Enclosure plate; 23. Slot; 24. Anti-detachment block; 25. Set screw No. 1; 26. Set screw No. 2; 27. Set screw No. 3; 28. Steel ball; 29. ​​Oil pipe; 30. Oil inlet; 31. Hollow ring; 32. Anti-slip texture; 33. Oil drain hole; 34. Oil supply pipe. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Reference Figure 1 - Figure 4 An automatic tapping device for producing metal end caps includes a turntable 1 capable of intermittent rotation, a rotating shaft driven by a servo motor connected to the center of the turntable 1, the rotating shaft passing downward through a support plate 2, the turntable 1 rotating on the support plate 2, and the support plate 2 being fixed to the ground by a support frame. Multiple grooves 3 are provided on the outer edge of the turntable 1. A support plate 2 is provided on the lower surface of the turntable 1. The upper surface of the support plate 2 and the grooves 3 form a station for placing the metal end cap 101. Multiple unloading ports 4 are arranged in a circular array on the outer edge of the support plate 2. The unloading port 4 is the unloading station 5. Based on the unloading port 4, and in a counterclockwise direction, there are the tapping station 6 and the loading station 7 in sequence. The outer edge of the pallet 2 is circumferentially arrayed with multiple grooves 8. Each groove 8 is equipped with a fixing component, which is used to press and fix the metal end cap 101 in the work station. Each fixing component includes a slider 9 that can slide along the groove 8. The end of the slider 9 is provided with an arc plate 10, which is used to press and fix the metal end cap 101 in the work station. The outer end face of the slider 9 is connected to a cylinder. The cylinder pushes the slider 9 to move the arc plate 10. The arc plate 10 can press the metal end cap 101 in the work station, that is, press and fix the metal end cap 101 in the work station. Each of the fixed components is provided with a tapping assembly on one side. The tapping assembly includes a tap 11 that can move up and down, and a drive mechanism that drives the tap 11 to rotate. The drive mechanism includes a motor and a gear set. The output end of the gear set is connected to a chuck that holds the tap 11. The chuck holds the tap 11. The motor is controlled by a PLC and can realize the forward or reverse rotation of the motor, thereby realizing the tap 11's insertion and retraction. The motor is connected to a hydraulic cylinder 12. The hydraulic cylinder 12 drives the motor to move the tap 11 up and down alternately, which, in conjunction with the tap 11's insertion and retraction, realizes the tapping operation. The servo motor, cylinder, hydraulic cylinder 12 and motor are all controlled by PLC and execute sequentially according to the preset program, which can realize the automatic tapping operation of the metal end cap 101 and has a certain degree of automation. The automatic tapping process for this metal end cap is as follows: Step 1: Loading. The metal end cap 101 is placed on the pallet 2 and pushed into the loading station 7. The inner side wall of the groove 3 partially covers the outer edge of the metal end cap 101. The pallet 2 supports the lower end face of the metal end cap 101. When the turntable 1 rotates, the turntable 1 can push the metal end cap 101 from the loading station 7 to the tapping station 6. Step 2: Tapping. The metal end cap 101 is transferred to the tapping station 6. First, the cylinder pushes the slider 9, which in turn pushes the arc plate 10 to move. The arc plate 10 presses and fixes the metal end cap 101. Then, the hydraulic cylinder 12 is driven, which drives the motor and the tap 11 to move slowly downward. At the same time, the motor, in conjunction with the gear set, drives the tap 11 to rotate at high speed. After that, the tap 11 performs tapping cutting in the through hole on the upper end face of the metal end cap 101. After the tapping cutting is completed, the hydraulic rod drives the tap 11 to move slowly upward. After the retraction process is completed, the tap 11 moves upward and resets. When the lower end of the tap 11 is separated from the metal end cap 101, the cylinder first drives the arc plate 10 to reset on the rear side. Then, the turntable 1 rotates and pushes the tapped metal end cap 101 to the unloading station 5. Step 3: Unloading. The metal end cap 101 is pushed by the turntable 1 to the unloading port 4, which is the unloading station 5. Without the support of the support plate 2, the metal end cap 101 completes the unloading under its own weight. Steps one, two, and three constitute one cycle, and the subsequent metal end cap 101 can be executed sequentially according to the above steps; and in this embodiment, as Figure 3 and Figure 4 The turntable 1 has nine grooves 3, which can be divided into three processing stations. Each station performs steps one, two and three simultaneously. Within a unit of time, three metal heads 101 can be tapped at once.

[0024] The automatic tapping device for metal heads integrates the three processes of feeding, tapping and unloading into the same turntable 1 through a multi-station parallel layout of turntable 1. The nine stations are divided into three groups and operate synchronously. It can complete the tapping of three metal heads 101 per unit time, which greatly improves the efficiency compared with the traditional single-station one-by-one processing. The cooperative structure of turntable 1 and tray 2 achieves efficient 360° space utilization. The groove 3 partially wraps the outer circle of the metal end cap 101 and cooperates with the arc plate 10 to radially slide and compress, forming a self-centering clamping, which can achieve automatic positioning and highly stable clamping and fixing, and has good consistency in batch processing. The PLC program controls the servo motor, cylinder, hydraulic cylinder 12 and spindle motor, and automatically completes the entire process of indexing, clamping and positioning, cutting, reversing and unloading according to the preset timing sequence. The operator only needs to load the material initially, realizing unmanned continuous operation and greatly reducing labor intensity. This automatic tapping device can use common standard electrical components, is easy to maintain, and a single unit can replace multiple traditional single machines, reducing the floor space and labor costs, thus having significant economic benefits and industrial application value.

[0025] Reference Figure 1 - Figure 4 The pallet 2 is equipped with a feeding conveyor belt 13 around its outer ring. The upper surface of the feeding conveyor belt 13 is higher than the upper surface of the pallet 2. The outer ring of the feeding conveyor belt 13 is arranged with its surface higher than the pallet 2, and the height difference is used to achieve a smooth transition of the metal end cap 101. The end of the feeding conveyor belt 13 is located close to the workstation, and a push plate 14 is provided on the outer side of the end of the feeding conveyor belt 13. The push plate 14 can push the metal end cap 101 at the end of the feeding conveyor belt 13 into the workstation. Below each feeding conveyor belt 13, there is a discharging conveyor belt 15, and the first end of the discharging conveyor belt 15 is located below the unloading port 4. By adding the feeding and discharging conveyor belts 15 and the push plate 14 mechanism, the level of automation and production efficiency are further improved, as detailed below: The push plate 14 is externally connected to an electric push rod, which is controlled by a PLC. The electric push rod drives the push plate 14, which can indirectly push the metal end cap 101 on the feeding conveyor belt 13 into the feeding station 7, realizing the automated feeding of the metal end cap 101 and further reducing manual operation. The push plate 14 is arc-shaped, which can partially wrap the metal end cap 101 when the push plate 14 pushes the metal end cap 101, and smoothly push the metal end cap 101 into the feeding station 7 along a straight line. Below the unloading station 5 is an unloading conveyor belt 15. The unloading conveyor belt 15 is arranged below the loading conveyor belt 13 and its first end is aligned with the unloading port 4. After the tapped metal end cap 101 loses the support of the support plate 2 at the unloading port 4, it falls directly into the unloading conveyor belt 15 and is taken away from the site, forming a three-dimensional layered layout for unloading and loading logistics, with compact and reasonable space utilization. The feeding conveyor belt 13 and the unloading conveyor belt 15, along with the rotation of the turntable 1, the action of the push plate 14, and the tapping operation, are all controlled by a unified PLC timing system. The entire process of the metal head 101 from loading to unloading is automated. The manual labor is only required to initially place the metal head 101 and collect the finished product, further reducing the labor intensity and making the production cycle stable and controllable. This system is suitable for the large-scale continuous manufacturing of the metal head 101.

[0026] Reference Figure 3 and Figure 4 The pallet 2 is symmetrically provided with guide strips 16 close to the feeding conveyor belt 13. The guide strips 16 are used to guide the metal end caps 101 that slide from the feeding conveyor belt 13 into the work station. Considering that the metal end cap 101 is a blank, there is a possibility that there are burrs or foreign objects on its lower end face. When the push plate 14 pushes the metal end cap 101, the burrs or foreign objects are prone to jamming with the edge of the support plate 2, causing the metal end cap 101 to deviate from its moving path. To this end, a guide strip 16 is set up. The guide strip 16, together with the arc-shaped push plate 14, forms a guiding mechanism. The guide strip 16 prevents the metal end cap 101 from deviating from the predetermined path, avoids the burrs from hooking and jamming with the edge of the support plate 2, and ensures that the metal end cap 101 slides accurately into the loading station 7 in a straight line, reduces the frequency of downtime cleaning due to jamming, and ensures the continuous and efficient operation of automatic tapping.

[0027] Reference Figure 7 - Figure 9 Each of the arc-shaped plates 10 is provided with a pressure plate 17, which is obliquely fixed to the arc-shaped plate 10 by a plurality of No. 1 bolts 18. The pressure plate 17 applies an oblique downward compressive force to the metal end cap 101. By adding an adjustable pressure plate 17 to the arc plate 10, the stability and adaptability of the clamping mechanism are significantly improved. Specifically, the pressure plate 17 is obliquely fixed to the arc plate 10 by multiple No. 1 bolts 18, applying a downward compound extrusion force to the metal head 101, forming a double clamping constraint in the radial and axial directions. This effectively suppresses the upward floating or vibration of the metal head 101 caused by the cutting force during tapping, ensuring the processing stability when the tap 11 is inserted. Shims of different thicknesses can be added between the pressure plate 17 and the arc plate 10 to achieve flexible adjustment of the height of the pressure plate 17. This allows for pressing the upper surface of the metal head 101 and also adapting to irregularly shaped metal heads 101 with the same diameter at the bottom end face and different curvatures on the upper surface. It is compatible with various metal head 101 types such as flat bottom, elliptical bottom, and butterfly bottom. This modular adjustment structure does not require replacing the entire set of fixtures. It can quickly adapt to different specifications of products by simply adding or removing shims. The changeover and debugging time is short, and the flexible manufacturing capability is strong, meeting the production needs of multiple varieties and small batches of metal heads 101.

[0028] Reference Figure 3 - Figure 5The turntable 1 has multiple stepped grooves 19, which are arranged to overlap with the grooves 3. Each stepped groove 19 has a "C"-shaped buckle plate 20, and each buckle plate 20 is fixed in the stepped groove 19 by multiple No. 2 bolts 21. The stepped groove 19 is designed for assembling different types of snap-on plates 20. Different types of snap-on plates 20 are used to fit metal end caps 101 with different upper surface curvatures, and the snap-on plates 20 are fixed in the stepped groove 19 by bolts 21. By creating stepped grooves 19 on the turntable 1 and configuring replaceable snap-on plates 20, a modular and flexible design for the workstation bearing structure is achieved. Specifically, the stepped grooves 19 and the recesses 3 are arranged to overlap one-to-one, forming a sunken assembly space. The snap-on plates 20 are detachably fixed to the stepped grooves 19 by multiple No. 2 bolts 21. The inner top surface of the snap-on plates 20 constitutes the extrusion reference surface of the metal head 101. For metal heads 101 with different curvature surfaces corresponding to different models of snap-on plates 20, they can be quickly replaced to adapt to metal heads 101 with different upper surface curvatures such as flat bottom, elliptical bottom, butterfly bottom, and hemispherical bottom. This expands the recesses 3, which were originally only suitable for a single type, into a universal platform compatible with multiple specifications. Moreover, this structure achieves type change by simply fastening with No. 2 bolts 21 without processing or modifying the turntable 1. The tooling preparation cycle is short, the inventory cost is low, and the equipment's ability to quickly respond to the needs of multi-variety and variable batch production of head products is significantly improved, enhancing the market adaptability and return on investment of the equipment.

[0029] Reference Figure 4 - Figure 6 Each groove 3 has an opening on its inner sidewall. The outer sidewall of the groove 22 and the inner sidewall of the groove 3 are provided with slots 23, and anti-detachment blocks 24 are provided in the slots 23. By setting an adjustable retaining plate 22 on the inner sidewall of the groove 3, flexible adaptation of the effective size of the workstation is achieved. Specifically, the retaining plate 22 has a C-shaped structure with an opening, and its outer ring sidewall has a corresponding slot 23 on the inner sidewall of the groove 3. The slot 23 is embedded with an anti-detachment block 24, which realizes quick positioning and reliable fixation of the retaining plate 22. For metal end caps 101 with different end face diameters, the retaining plate 22 of the corresponding specification can be replaced, so that the inner ring of the retaining plate 22 is accurately attached to the outer surface of the end cap, expanding the originally single-size groove 3 into a series of... The adjustable clamping space is arranged in a row; the surrounding plate 22 and the pressure plate 17 form a coordinated adjustment mechanism. The surrounding plate 22 achieves radial positioning and centering, while the adjustable pressure plate 17 achieves axial clamping and vibration prevention. Together, they ensure the clamping stability and processing accuracy of various or irregularly shaped metal heads 101 in the tapping station 6. In addition, the structure of the surrounding plate 22 achieves tool-free quick change of the surrounding plate 22 through the engagement of the anti-disengagement block 24 and the slot 23. The changeover efficiency is high, the tooling cost is low, and the adaptability and processing flexibility of the device to multi-specification head products are significantly improved.

[0030] Reference Figure 7 - Figure 9 Each of the arc-shaped plates 10 has multiple No. 1 set screws 25 internally threaded, which are used to press the outer ring surface of the metal end cap 101; each of the buckle plates 20 has multiple No. 2 set screws 26 threaded on, which are used to press the upper surface of the metal end cap 101. By adding No. 1 set screw 25 and No. 2 set screw 26 to the arc plate 10 and the buckle plate 20 respectively, the fine adjustment of clamping force and the adaptive fit of irregular contours are realized. Specifically, multiple No. 1 set screws 25 are connected by internal threads in the arc plate 10. When screwed in, the end of the No. 1 set screw 25 directly presses against the outer ring surface of the metal end cap 101, forming a multi-point contact radial clamping, which replaces or assists the surface contact clamping of the arc plate 10 body. For metal end caps 101 with large ellipticity or irregular outer circle, adaptive centering can be achieved by adjusting the screw-out length of each No. 1 set screw 25. Multiple No. 2 set screws 26 are threaded onto the buckle plate 20. When screwed in, the ends of the No. 2 set screws 26 directly press against the upper surface of the metal end cap 101, forming a complementary axial clamping with the pressure plate 17. For metal end caps 101 with poor upper surface flatness or local protrusions, stability compensation for multi-point support can be achieved by adjusting the height difference of each No. 2 set screw 26. The structure of the No. 1 set screw 25 and the No. 2 set screw 26 together with the arc plate 10, buckle plate 20 and pressure plate 17 constitute a multi-dimensional adjustable clamping system. It can adapt to various metal end caps 101 with deviations in outer diameter, upper surface curvature and end face flatness without changing the entire set of tooling, thus improving the process flexibility and clamping reliability of the automatic tapping device.

[0031] Reference Figure 7 - Figure 9 Each of the pressure plates 17 has a plurality of No. 3 set screws 27 threaded to its end. The end of the No. 3 set screw 27 has a rotating groove, and a steel ball 28 is provided in the rotating groove. The No. 3 set screw 27 is used to assist the pressure plate 17 and apply a downward compressive force to the metal end cap 101. By adding a No. 3 set screw 27 with steel balls 28 to the end of the pressure plate 17, the clamping force can be finely adjusted and adaptively fitted. Specifically, the No. 3 set screw 27 is threaded to the end of the pressure plate 17. When screwed in, the steel balls 28 apply a downward compressive force to the metal head 101, forming a cooperative clamping or independent auxiliary clamping with the pressure plate 17. The steel balls 28 can rotate freely in the rotating groove and form a rolling point contact with the upper surface of the metal head 101. For head blanks with local protrusions, depressions or roughness on the upper surface of the metal head 101, the steel balls 28 can adaptively fit the contour undulations, avoiding stress concentration or false pressure problems caused by the rigid pressure plate 17. By adjusting the screw length of each No. 3 set screw 27, the magnitude of the clamping force can be controlled and the force can be evenly distributed at multiple points, further improving the adaptability and flexibility of the automatic tapping device in processing metal heads 101.

[0032] Reference Figure 7 - Figure 9 Each slider 9 is provided with an oil pipe 29. The end of the oil pipe 29 extends obliquely towards the work station. An oil inlet hole 30 is radially opened on the outer surface of the oil pipe 29. A hollow ring 31 is fitted around the outer ring of the oil pipe 29. An oil supply pipe 34 is connected to the outside of the hollow ring 31. The oil supply pipe 34 is fixed to the support plate 2. The slider 9 drives the oil pipe 29 to move. The oil inlet hole 30 moves into the hollow ring 31, and the lubricating oil enters the oil pipe 29 along the oil inlet hole 30. By integrating a follow-up lubrication mechanism onto the slider 9, precise automatic lubrication of the tapping station 6 is achieved. Specifically, the oil pipe 29 is fixed to the slider 9 and moves synchronously with the arc plate 10, with its end extending obliquely towards the tapping station 6 to ensure that the lubricating oil is directly sprayed into the cutting area of ​​the tap 11. An oil inlet hole 30 is radially opened on the outer surface of the oil pipe 29. When the slider 9 is not moving towards the tapping station 6, the slider 9 and the oil pipe 29 are parallel to the tapping station 6, and the oil inlet hole 30 on the oil pipe 29 is offset from the hollow ring 31. When tapping, the slider 9 drives the oil pipe 29 to move towards the tapping station 6. The oil inlet 30 gradually moves into the hollow ring 31, and finally the interior of the hollow ring 31 connects with the oil inlet 30. The lubricating oil flows sequentially along the oil supply pipe 34, the hollow ring 31, the oil inlet 30 and the oil pipe 29, and is finally discharged from the end of the oil pipe 29 and sprayed into the cutting area of ​​the tap 11, achieving precise synchronization between tapping operation and lubrication supply. At the same time, this follow-up lubrication design avoids the position interference problem of traditional fixed nozzles. Lubrication is only triggered when the tapping station 6 is clamped in place. The lubricating oil utilization rate is high, there is no leakage pollution, and manual intervention and lubricating grease waste are reduced.

[0033] Reference Figure 4 - Figure 6 Each of the enclosure panels 22 has anti-slip textures 32 on its inner surface, and there is a gap between the anti-slip textures 32 and the outer surface of the metal end cap 101. By setting anti-slip textures 32 on the inner surface of the retaining plate 22 and reserving oil guiding gaps, the synergistic optimization of clamping stability and lubrication chip removal is achieved. Specifically, the anti-slip textures 32 increase the friction coefficient between the retaining plate 22 and the outer surface of the metal end cap 101, effectively preventing the metal end cap 101 from circumferentially slipping under the tapping torque, ensuring the positional accuracy of thread processing; the gap naturally formed between the textures and the surface of the metal end cap 101 constitutes a lubricating oil drainage channel, allowing the lubricating oil sprayed into the tapping area to flow smoothly downwards along the outer wall of the metal end cap 101 after cooling the tap 11, avoiding the problem of clamping force reduction or oil film slippage caused by oil accumulation in the clamping area; Figure 4 and Figure 5 As shown, multiple oil drain holes 33 are opened on the support plate 2. The oil drain holes 33 are connected to the gap, so that the used lubricating oil can be drained away from the tapping station 6 in time to prevent the oil from overflowing and polluting the equipment environment or affecting the positioning accuracy of the next station. This structural design takes into account the clamping reliability and process cleanliness. The anti-slip and oil guiding functions are integrated into one, eliminating the need for additional oil drain pipes 29. The structure is compact and easy to maintain, which significantly improves the long-term operating stability of the automatic tapping device and the quality of the on-site working environment.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tapping device for producing metal heads, characterized in that: It includes a turntable that can rotate intermittently, with multiple grooves on the outer edge of the turntable, a tray on the lower surface of the turntable, and the upper surface of the tray and the grooves forming a workstation for placing materials. Multiple discharge ports are arranged in a circular array on the outer edge of the tray. The outer edge of the pallet is provided with a circumferential array of multiple grooves, each groove is provided with a fixing component, the fixing component is used to squeeze and fix the material in the work station, and each fixing component includes a slider that can slide along the groove, the end of the slider is provided with an arc plate, the arc plate is used to squeeze and fix the material in the work station; Each of the fixed components is provided with a tapping component on one side. The tapping component includes a tap that can move up and down, and a drive mechanism that drives the tap to rotate.

2. The automatic tapping device for producing metal heads according to claim 1, characterized in that: The pallet is equipped with a feeding conveyor belt on its outer ring. The upper surface of the feeding conveyor belt is higher than the upper surface of the pallet. The end of the feeding conveyor belt is located close to the work station, and a push plate is provided on the outer side of the end of the feeding conveyor belt. The push plate can push the material at the end of the feeding conveyor belt into the work station. Each of the feeding conveyors is provided with a discharging conveyor below it, and the first end of the discharging conveyor is located below the discharge port.

3. The automatic tapping device for producing metal heads according to claim 2, characterized in that: The pallet is symmetrically equipped with guide strips near the feeding conveyor belt. The guide strips are used to guide the material that slides from the feeding conveyor belt into the work station.

4. The automatic tapping device for producing metal heads according to claim 1, characterized in that: Each of the arc-shaped plates is provided with a pressure plate, which is obliquely fixed to the arc-shaped plate by multiple No. 1 bolts. The pressure plate applies an oblique downward compressive force to the material.

5. An automatic tapping device for producing metal heads according to claim 4, characterized in that: The turntable has multiple stepped grooves, which are arranged to overlap with the recesses. Each stepped groove has a "C"-shaped buckle plate, and each buckle plate is fixed in the stepped groove by multiple No. 2 bolts.

6. The automatic tapping device for producing metal heads according to claim 5, characterized in that: Each groove has an opening on its inner sidewall. The outer sidewall of the enclosure and the inner sidewall of the groove are provided with slots, and anti-detachment blocks are provided in the slots.

7. An automatic tapping device for producing metal heads according to claim 5, characterized in that: Each of the arc-shaped plates has multiple No. 1 set screws internally threaded together, which are used to compress the outer surface of the material; each of the buckle plates has multiple No. 2 set screws internally threaded together, which are used to compress the upper surface of the material.

8. An automatic tapping device for producing metal heads according to claim 4, characterized in that: Each of the pressure plates has multiple No. 3 set screws threaded to its end. The end of the No. 3 set screw has a rotating groove with a steel ball inside. The No. 3 set screw is used to assist the pressure plate and apply a downward compressive force to the material.

9. An automatic tapping device for producing metal heads according to claim 1, characterized in that: Each slider is equipped with an oil pipe, the end of which extends obliquely toward the work station. An oil inlet hole is radially opened on the outer surface of the oil pipe. A hollow ring is fitted around the outer ring of the oil pipe, and an oil supply pipe is connected to the outside of the hollow ring. The oil supply pipe is fixed to the support plate. The slider drives the oil pipe to move, and the oil inlet hole moves into the hollow ring. Lubricating oil enters the oil pipe along the oil inlet hole.

10. An automatic tapping device for producing metal heads according to claim 6, characterized in that: Each of the enclosure panels has anti-slip textures on its inner surface, with gaps between the anti-slip textures and the outer surface of the material.

Images