Thread machining device for metal part machining

Abstract

The invention discloses a thread machining device for metal part machining, and relates to the technical field of metal machining equipment.The lower end of a lifting sliding plate is provided with an angle adjusting assembly, the upper end of the lifting sliding plate is fixedly provided with a rotating assembly, the rotating assembly is used for driving the angle adjusting assembly to rotate, and the angle adjusting assembly is provided with a thread machining assembly; a tapping cutter is detachably installed on the thread machining assembly. Transverse clamping assemblies used for transversely clamping a metal piece are installed at the two side ends of the main body base in the transverse direction. Longitudinal clamping assemblies used for longitudinally clamping the metal piece are installed on the transverse clamping assemblies. A clamping through hole is formed in the center of the main body base, and a three-jaw clamping seat used for clamping the tubular metal part is mounted in the clamping through hole; through the synergistic effect of the rotating assembly and the angle adjusting assembly, the tool can be positioned at will within the inclination range of 0-90 degrees, and multi-angle machining of a complex curved surface is achieved in cooperation with position adjustment of the arc-shaped guide rail.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing equipment, and particularly relates to a thread processing device for metal part processing. Background Art

[0002] Metal part processing refers to processing metal parts through mechanical equipment, tools and processes, including cutting, bending, forming, punching, folding, etc. of the material. With the globalization process of the economy, due to their high strength, high corrosion resistance and beautiful appearance, metal parts are widely used in various industries. And thread processing for metal parts is also widely applied to each part, and now a complete processing process has been formed. However, conventional thread processing devices have obvious limitations: First, existing thread processing devices usually can only perform thread processing in a single direction. When it is necessary to process different positions of a metal part, the metal part often needs to be re-clamped multiple times, which not only greatly reduces the processing efficiency, but also easily leads to a decrease in processing accuracy due to repeated clamping; Second, for thread processing at certain special angles, due to the lack of suitable clamping conditions for the metal part, it is difficult to maintain stability during the processing, affecting the processing quality; Third, existing thread processing equipment often cannot simultaneously meet the processing requirements of pipe-shaped parts and plate-shaped parts, resulting in enterprises needing to purchase multiple sets of equipment to meet the processing requirements of metal parts of different specifications, increasing the equipment investment cost. In addition, traditional equipment has a relatively single clamping method, cannot achieve multi-directional simultaneous clamping, and lacks an angle adjustment function, which all limit the improvement of thread processing efficiency and quality. Summary of the Invention

[0003] The purpose of the present invention is to provide a thread processing device for metal part processing, and solve the problems commonly existing in metal part thread processing devices, such as single processing direction, unstable workpiece clamping and inability to adapt to workpieces of different shapes.

[0004] The purpose of the present invention can be achieved by the following technical solutions: A thread processing device for metal parts processing comprises a main body base, wherein the four corners of the upper end of the main body base are fixedly provided with vertically upward supporting columns, the top of the supporting columns is fixedly provided with a main body top plate, the upper center position of the main body top plate is fixedly installed with a lifting cylinder, the output end of the lifting cylinder is fixedly connected with a lifting slide plate, the lifting slide plate is slidably installed on the supporting column, the lower end of the lifting slide plate is provided with an angle adjustment component, the upper end of the lifting slide plate is fixedly provided with a rotating component, the rotating component is used to drive the angle adjustment component to rotate, a thread processing component is installed on the angle adjustment component, a tapping tool is detachably installed on the thread processing component and the position on the angle adjustment component can be adjusted to perform thread processing on different angles of the metal parts; transverse clamping components for transversely clamping the metal parts are installed on both side ends of the main body base along the transverse direction, and a longitudinal clamping component for longitudinally clamping the metal parts is installed on the transverse clamping component; a clamping through hole is provided at the center position of the main body base, and a three-claw clamping seat for clamping the tubular metal parts is installed in the clamping through hole.

[0005] Preferably, the transverse clamping assembly includes two groups of transverse supports fixedly arranged on the side walls of the main body base, a driving rod is rotatably installed between the two groups of transverse supports, a clamping motor for driving the driving rod to rotate is fixedly installed on one group of the transverse supports, a transverse clamping base plate is slidably connected to the upper end of the main body base, the driving rod is used to drive the transverse clamping base plate to slide on the upper end of the main body base, and a transverse clamping vertical plate is fixedly arranged on the upper end of the transverse clamping base plate.

[0006] Preferably, the driving rod is half a guide slide rod and half a threaded screw rod, one end of the cross clamp base plate is fixedly provided with a guide slide seat that slidably cooperates with the guide slide rod, and the other end of the cross clamp base plate is fixedly provided with a threaded slide seat that is threadedly connected to the threaded screw rod.

[0007] Preferably, the longitudinal clamping assembly includes a longitudinal support fixedly arranged on the upper end of the transverse clamping bottom plate, a transverse movement cylinder is fixedly installed on the longitudinal support, the output end of the transverse movement cylinder is fixedly connected to the longitudinal clamping slide, a fixed vertical plate is fixedly arranged in the middle of the longitudinal clamping slide, a longitudinal clamping cylinder is fixedly installed on the fixed vertical plate, the output end of the longitudinal clamping cylinder is fixedly connected to the longitudinal clamping vertical plate, the longitudinal clamping vertical plate is slidably fitted on the upper surface of the main base, and a longitudinal clamping slide groove for avoiding the longitudinal clamping vertical plate is provided at the lower part of the transverse clamping vertical plate.

[0008] Preferably, the rotating assembly includes a rotating motor fixedly mounted on the upper end of the lifting slide and a connecting spindle rotatably mounted at the center position of the lower end of the lifting slide, the angle adjustment assembly is fixedly mounted on the lower end of the connecting spindle, a driven gear is fixedly mounted on the connecting spindle, the output end of the rotating motor is fixedly connected to a driving spindle, and a driving spindle is fixedly mounted on the driving spindle with a driving gear meshing and transmission connected to the driven gear.

[0009] Preferably, the angle adjustment assembly includes a connecting top plate. The lower end of the connecting top plate is fixedly connected to a fixed support through a connecting pillar. One side of the fixed support is rotatably installed with a movable support. Arc-shaped racks for driving the adjustment of the position of the thread processing assembly are provided on one side of both the fixed support and the movable support. A cylinder support is fixedly arranged on the lower end of the connecting top plate near the movable support. An adjustment cylinder is rotatably installed on the cylinder support. The output end of the adjustment cylinder is rotatably connected to the movable support for driving the movable support to rotate.

[0010] Preferably, the fixed support includes a fixed arc seat. The lower end of the fixed arc seat is fixedly provided with a fixed guide rail. A connecting groove is arranged on one side of the fixed arc seat. A connecting rotating shaft for rotatably connecting the movable support is fixedly installed at the connecting groove.

[0011] Preferably, the movable support includes a movable arc seat with the same diameter as the fixed arc seat. A connecting guide rail matching the fixed guide rail is fixedly arranged inside the movable arc seat. A connecting shaft sleeve rotatably connected to the connecting rotating shaft is fixedly arranged on one side of the movable arc seat. A connecting ear rotatably connected to the output end of the adjustment cylinder is fixedly arranged on the outer side of the movable arc seat.

[0012] Preferably, the thread processing assembly includes a guide rail connecting seat. A guide rail chute slidingly matched with the fixed guide rail and the connecting guide rail is arranged at the upper end of the guide rail connecting seat. A tapping cylinder is fixedly arranged at the lower end of the guide rail connecting seat. The output end of the tapping cylinder is fixedly connected to a tapping support. A tapping motor is fixedly installed on the tapping support. A tool mounting head is fixedly installed on the output shaft of the tapping motor. The tool mounting head is used for detachably installing a tapping tool.

[0013] Preferably, a motor support is fixedly connected to one side of the guide rail connecting seat close to the arc-shaped rack. An adjustment motor is fixedly installed on the motor support. An adjustment gear meshing and drivingly connected with the arc-shaped rack is fixedly installed on the output shaft of the adjustment motor. The position of the thread processing assembly on the angle adjustment assembly is adjusted through the gear-rack transmission.

[0014] Advantages of the present invention: (1) Through the synergistic effect of the rotation assembly and the angle adjustment assembly, the tool can be arbitrarily positioned within the range of 0-90 degrees of inclination. With the position adjustment of the arc-shaped guide rail, multi-angle machining of complex curved surfaces can be realized. The cross-shaped clamping layout of this device forms a three-dimensional constraint. Cooperating with a special three-jaw chuck, the clamping stability of special-shaped workpieces is effectively improved. Traditional equipment needs to be equipped with multiple sets of jigs to deal with different workpieces. This device integrates two clamping modes, significantly improving the versatility of the equipment.

[0015] (2) By dividing the driving rod into a guiding slide rod and a threaded lead screw, and utilizing the complementary characteristics of the two, both the offset interference is eliminated through the sliding pair and the precise displacement is achieved through the screw drive, solving the problems of uneven clamping force distribution and insufficient movement stability. Brief Description of the Drawings

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic structural view of the vertical processing of the present invention; Figure 2 is a schematic structural view of the movable support being lowered of the present invention; Figure 3 is the present invention Figure 2 a three-dimensional structural schematic view of the cross-section taken along the A-A direction in; Figure 4 is a schematic structural view of the processing in other directions of the present invention; Figure 5 is a schematic installation structure view of the transverse clamping assembly of the present invention; Figure 6 is the present invention Figure 5 a three-dimensional structural schematic view of the cross-section taken along the B-B direction in; Figure 7 is a three-dimensional structural schematic view of the fixed support of the present invention; Figure 8 is an axonometric structural schematic view of the fixed support of the present invention; Figure 9 is a three-dimensional structural schematic view of the movable support of the present invention; Figure 10 is a three-dimensional structural schematic view of the thread processing assembly of the present invention.

[0018] In the figure: 1, main body base; 2, horizontal clamping assembly; 21, horizontal support; 22, clamping motor; 23, driving rod; 231, guiding slide rod; 232, threaded lead screw; 24, threaded slide block; 25, guiding slide block; 26, horizontal clamping bottom plate; 27, horizontal clamping vertical plate; 271, vertical clamping chute; 3, vertical clamping assembly; 31, vertical support; 32, transverse shifting cylinder; 33, vertical clamping slide block; 34, fixed vertical plate; 35, vertical clamping cylinder; 36, vertical clamping vertical plate; 4, support column; 5, main body top plate; 6, lifting oil cylinder; 7, rotating assembly; 71, rotating motor; 72, connecting main shaft; 73, driven gear; 74, driving main shaft; 75, driving gear; 8, angle adjusting assembly; 81, connecting top plate; 82, connecting support column; 83, fixed support; 831, fixed arc seat; 832, fixed guide rail; 833, connecting groove; 834, connecting rotating shaft; 84, movable support; 841, movable arc seat; 842, connecting guide rail; 843, connecting bushing; 844, connecting ear; 85, arc rack; 86, adjusting cylinder; 87, cylinder support; 9, thread processing assembly; 91, guide rail connecting seat; 92, guide rail chute; 93, motor support; 94, adjusting motor; 95, adjusting gear; 96, tapping cylinder; 97, tapping support; 98, tapping motor; 99, tool mounting head; 10, lifting slide plate; 11, clamping through hole; 12, three-jaw clamping seat; 13, tapping tool. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] In the prior art, metal part thread processing devices generally have problems such as a single processing direction, unstable workpiece clamping, and inability to adapt to workpieces of different shapes. When performing multi-angle processing with conventional equipment, the workpiece needs to be repeatedly disassembled, resulting in a decrease in processing efficiency. For the mixed processing scenario of pipe-shaped parts and plate-shaped parts, operators need to frequently replace equipment or adjust fixtures, making it difficult to ensure processing accuracy. The traditional clamping mechanism has poor adaptability to special-shaped workpieces and is prone to displacement during the processing, affecting the quality of thread formation. To solve the above problems, it is difficult for existing technical solutions to simultaneously meet the requirements of multi-angle machining and workpiece compatibility. Through analysis, it is found that to achieve flexible adjustment of the machining angle, it is necessary to break through the tool movement trajectory limit and develop a multi-dimensional positioning mechanism. For clamping stability, a composite clamping system needs to be designed to adapt to workpieces with different geometric features. After multiple experimental verifications, the combination of a rotating mechanism and an arc-shaped guide rail can expand the tool movement range, and the combination of a cross clamping layout can achieve multi-directional fixation of the workpiece. Please refer to Figures 1 - 10 As shown in the figure, the present invention is a thread processing device for metal part processing. Support columns 4 are provided at the four corners of the upper end of the main body base 1. The top of the support columns 4 is fixed with the main body top plate 5. A lifting oil cylinder 6 is installed at the center of the upper end of the main body top plate 5. The output end of the lifting oil cylinder 6 is connected to a lifting slide plate 10 slidably installed on the support columns 4. An angle adjustment assembly 8 is provided at the lower end of the lifting slide plate 10, and a rotating assembly 7 for driving the angle adjustment assembly 8 to rotate is installed at the upper end. An adjustable-position thread processing assembly 9 is installed on the angle adjustment assembly 8, and this assembly is equipped with a detachable tapping tool 13. Transverse clamping assemblies 2 are installed on both sides of the main body base 1, and longitudinal clamping assemblies 3 are provided on the transverse clamping assemblies 2. A clamping through hole 11 is opened at the center of the main body base 1, and a three-jaw chuck 12 is built in. Among them, the main body base 1 refers to the basic platform for carrying each functional module, which can be specifically realized by cast iron or welded steel structure to provide rigid support for the equipment. The support columns 4 refer to the column structures connecting the base and the top plate, forming a stable frame system. The lifting oil cylinder 6 refers to the power device for driving the axial feed of the tool, which can be specifically realized by a hydraulic cylinder or an electric push rod to control the thread processing depth. The angle adjustment assembly 8 refers to the mechanical device for controlling the tilt angle of the tool, which can be specifically realized by the combination of an arc-shaped guide rail and an adjustment cylinder 86 to expand the machining angle range. The rotating assembly 7 refers to the transmission mechanism for driving the rotation of the tool, which can be specifically realized by a gear transmission or a belt drive system to change the machining circumferential position. The transverse clamping assembly 2 refers to the clamping device for restricting the width direction of the workpiece, which can be specifically realized by a lead screw driving slider structure to adapt to workpieces of different sizes. The longitudinal clamping assembly 3 refers to the positioning device for restricting the length direction of the workpiece, which can be specifically realized by a cylinder driving a clamping plate structure to prevent displacement during the machining process. The three-jaw chuck 12 refers to a special fixture for clamping tubular workpieces to ensure the coaxiality of round tube workpieces. Specifically, the lifting and lowering slide plate 10 moves vertically along the support column 4 under the drive of the oil cylinder, driving the tapping tool 13 to complete the axial feed motion. The rotation assembly 7 drives the overall rotation of the angle adjustment assembly 8 through gear transmission, enabling the tapping tool 13 to obtain the circumferential positioning ability. The movable support 84 in the angle adjustment assembly 8 rotates relative to the fixed support 83 under the action of the cylinder, forming different opening and closing angles, and cooperating with the position adjustment of the thread processing assembly 9 along the arc-shaped guide rail to achieve precise control of the tool tilt angle. The lateral clamping assembly 2 drives the two side clamping plates to move towards each other synchronously, applying clamping forces from both sides of the workpiece. The longitudinal clamping assembly 3 acts independently on the lateral clamping mechanism to perform auxiliary positioning from the end of the workpiece. The three-jaw clamping seat 12 forms a complementary relationship with the lateral and longitudinal clamping assembly 3, and selects the applicable clamping mode according to the shape of the workpiece. Compared with the prior art, traditional equipment is limited by the fixed tool track and can only perform processing in the vertical direction. Through the coordinated action of the rotation assembly 7 and the angle adjustment assembly 8 in this solution, the tool can be arbitrarily positioned within the inclination range of 0 - 90 degrees, and combined with the position adjustment of the arc-shaped guide rail, multi-angle processing of complex curved surfaces can be achieved. Most existing clamping systems use single-direction clamping. The cross-shaped clamping layout of this device forms a three-dimensional constraint, and combined with a special three-jaw fixture, the clamping stability of special-shaped workpieces is effectively improved. Traditional equipment needs to be equipped with multiple sets of fixtures to handle different workpieces. This device integrates two clamping modes, significantly improving the versatility of the equipment. Through the above technical solutions, this application can complete multi-angle thread processing without disassembling the workpiece, reducing the auxiliary operation time. The lateral and longitudinal clamping assembly 3 forms a three-dimensional constraint to prevent deformation during the processing of thin-walled parts. The three-jaw clamping seat 12 and the clamping mechanism for plate-shaped parts can be quickly switched to meet the mixed processing requirements of pipe-shaped parts and plate-shaped parts. The linkage control of the angle adjustment assembly 8 and the rotation assembly 7 ensures that the tool maintains the correct feed direction at different processing positions. The quick-change design of the tapping tool 13 adapts to the processing of various thread specifications, improving the utilization rate of the equipment.

[0021] Please refer to Figures 3 - 6 As shown, this application further proposes that the lateral clamping assembly 2 includes two groups of lateral supports 21 fixedly arranged on the side wall of the main body base 1. A driving rod 23 is rotatably installed between the two groups of lateral supports 21. A clamping motor 22 for driving the driving rod 23 to rotate is fixedly installed on one of the groups of lateral supports 21. The upper end of the main body base 1 is slidably connected with a transverse clamping bottom plate 26. The driving rod 23 is used to drive the transverse clamping bottom plate 26 to slide on the upper end of the main body base 1. A transverse clamping vertical plate 27 is fixedly arranged on the upper end of the transverse clamping bottom plate 26.

[0022] Among them, the horizontal support 21 refers to a support structure fixed to the side wall of the main base 1, which can be specifically implemented by a rigid metal frame with a bearing seat. Its function is to provide stable rotational support for the driving rod 23 and ensure the coaxiality of the transmission system. The driving rod 23 refers to a transmission component passing through two groups of horizontal supports 21, which can be specifically implemented by a segmented rod structure. Its function is to convert the rotational motion of the clamping motor 22 into the linear displacement of the horizontal clamping bottom plate 26. The clamping motor 22 refers to a power output device, which can be specifically implemented by a servo motor or a stepper motor. Its function is to control the moving speed and positioning accuracy of the horizontal clamping bottom plate 26 through the rotation of the driving rod 23. The horizontal clamping bottom plate 26 refers to a bearing platform slidably installed on the upper end of the main base 1, which can be specifically implemented by a metal plate structure with linear guides. Its function is to carry the longitudinal clamping assembly 3 and achieve horizontal position adjustment. The horizontal clamping vertical plate 27 refers to a clamping reference surface vertically fixed to the upper part of the horizontal clamping bottom plate 26, which can be specifically implemented by a steel plate structure with positioning grooves. Its function is to jointly form a workpiece clamping reference surface with the longitudinal clamping assembly 3.

[0023] Specifically, the clamping motor 22 drives the horizontal clamping bottom plate 26 to slide horizontally along the main base 1 through the rotation of the driving rod 23. Both ends of the driving rod 23 are supported by two groups of horizontal supports 21 to form a stable rotation axis. When the clamping motor 22 is started, the rotational motion of the driving rod 23 is converted into a linear motion of the horizontal clamping bottom plate 26 through a transmission mechanism, and the motion direction is perpendicular to the workpiece axis. During the sliding process of the horizontal clamping bottom plate 26, the horizontal clamping vertical plate 27 carried by it moves synchronously, and cooperates with the clamping action of the longitudinal clamping assembly 3 to form an adjustable clamping space. For tubular workpieces, the horizontal clamping vertical plate 27 moves to the side of the clamping through-hole 11 to form a support surface; for plate-shaped workpieces, the horizontal clamping vertical plate 27 and the longitudinal clamping assembly 3 jointly form an L-shaped clamping structure. The continuous rotation of the driving rod 23 can achieve stepless position adjustment of the horizontal clamping bottom plate 26 to adapt to the clamping requirements of workpieces of different sizes.

[0024] Compared with the prior art, traditional horizontal clamping devices usually adopt a jaw structure with a fixed spacing, which requires manual adjustment of the fixture spacing and is difficult to be compatible with the mixed processing of pipe fittings and plate parts. The method of directly pushing the clamping block by a hydraulic cylinder in the prior art has problems of low positioning accuracy and uneven clamping force. This solution realizes precise control of the clamping position through the mechanical transmission structure of the driving rod 23 and the horizontal clamping bottom plate 26, and the combined design of the horizontal clamping vertical plate 27 and the longitudinal clamping assembly 3 can simultaneously meet the composite requirements of inner wall support of pipe fittings and edge clamping of plate parts.

[0025] Through the above technical solution, the present application realizes the rapid positioning and adaptive adjustment of the lateral clamping of metal parts. Through the mechanical linkage between the driving rod 23 and the transverse clamping base plate 26, it is possible to clamp tubular parts with different outer diameters and plate-shaped parts with different thicknesses without replacing the fixture. The vertical positioning characteristic of the transverse clamping vertical plate 27 avoids the inclination and offset of the workpiece during the clamping process, ensuring the axial positioning accuracy during thread machining. The closed-loop control system driven by the clamping motor 22 can realize the digital control of the clamping position, significantly improving the clamping efficiency and the repeat positioning accuracy.

[0026] The present application further proposes that the driving rod 23 is a semi-guide slide rod 231 and a semi-threaded lead screw 232. One end of the transverse clamping base plate 26 is fixedly provided with a guide slide seat 25 that slidably cooperates with the guide slide rod 231, and the other end of the transverse clamping base plate 26 is fixedly provided with a threaded slide seat 24 that is threadedly connected to the threaded lead screw 232. Among them, the guide slide rod 231 refers to a metal rod with a smooth cylindrical surface, and its outer diameter forms a clearance fit with the inner diameter of the guide slide seat 25, restricting the lateral offset during the sliding process through surface contact. The threaded lead screw 232 refers to a metal rod with a helical groove machined on its surface, and specifically, a trapezoidal thread or a ball screw structure can be used to realize it. The rotational motion is converted into a linear displacement through the thread engagement with the threaded slide seat 24. The guide slide seat 25 refers to a metal block with a sliding hole internally formed to match the shape of the guide slide rod 231, and specifically, a copper-based alloy material can be used, and the contact surface between its inner wall and the guide slide rod 231 forms a guide pair with a low friction coefficient. The threaded slide seat 24 refers to a metal block with an internal thread machined to match the threaded lead screw 232, and specifically, a detachable nut structure can be used, and the thread profile of its thread forms a self-locking characteristic with the helix angle of the threaded lead screw 232. Specifically, when the driving rod 23 rotates, a sliding pair is formed between the guide slide rod 231 and the guide slide seat 25, restricting the lateral offset or inclination of the transverse clamping base plate 26 during the movement and ensuring the straightness of the movement trajectory. At the same time, the thread engagement between the threaded lead screw 232 and the threaded slide seat 24 converts the rotational motion of the driving rod 23 into the linear displacement of the transverse clamping base plate 26, and the accurate control of the displacement is realized through the self-locking characteristic of the screw drive. The clearance fit between the guide slide seat 25 and the guide slide rod 231 can effectively absorb the assembly error and the dimensional change caused by thermal expansion, avoiding jamming; the meshing drive between the threaded slide seat 24 and the threaded lead screw 232 controls the displacement amount through the lead accuracy, and the two work together to make the lateral clamping assembly 2 move smoothly during the clamping process. Compared with the prior art, the traditional horizontal clamping assembly 2 usually adopts a single lead screw drive or a slide rod guiding structure. Although the single lead screw drive can accurately control the displacement, the frictional resistance between the lead screw and the nut is likely to cause jamming. Although the pure slide rod structure can ensure the moving stability, it lacks displacement control accuracy. In this solution, the driving rod 23 is divided into a guiding slide rod 231 and a threaded lead screw 232. By utilizing the complementary characteristics of the two, the offset interference is eliminated through the sliding pair, and the accurate displacement is achieved through the threaded transmission, solving the problems of uneven clamping force distribution and insufficient moving stability. Through the above technical solution, the present application realizes the uniform distribution of the clamping force during the horizontal clamping process, effectively suppressing the positioning error caused by the offset of the metal part due to the force. At the same time, the cooperative driving mechanism of the guiding slide rod 231 and the threaded lead screw 232 ensures the linearity and displacement accuracy of the moving track of the horizontal clamping bottom plate 26, avoiding the vibration or jamming phenomenon caused by a single driving mode, and significantly improving the clamping reliability and processing stability.

[0027] The present application further proposes that the longitudinal clamping assembly 3 includes a longitudinal support 31 fixedly arranged at the upper end of the horizontal clamping bottom plate 26. A transverse moving cylinder 32 is fixedly installed on the longitudinal support 31. The output end of the transverse moving cylinder 32 is fixedly connected with a longitudinal clamping slide 33. A fixed vertical plate 34 is fixedly arranged in the middle of the longitudinal clamping slide 33. A longitudinal clamping cylinder 35 is fixedly installed on the fixed vertical plate 34. The output end of the longitudinal clamping cylinder 35 is fixedly connected with a longitudinal clamping vertical plate 36. The longitudinal clamping vertical plate 36 is slidably attached to the upper surface of the main body base 1, and a longitudinal clamping chute 271 for avoiding the longitudinal clamping vertical plate 36 is arranged at the lower part of the horizontal clamping vertical plate 27.

[0028] Among them, the longitudinal support 31 refers to the basic support structure for carrying the longitudinal clamping assembly 3, which can be specifically fixed on the horizontal clamping bottom plate 26 by welding or bolt connection. Its function is to provide a rigid installation platform for the transverse moving cylinder 32. The transverse moving cylinder 32 refers to the actuator for driving the longitudinal clamping assembly 3 to move horizontally, which can be specifically realized by a double piston rod cylinder or a servo electric cylinder, and drives the longitudinal clamping slide 33 to move horizontally through a linear motion. The longitudinal clamping slide 33 refers to the transitional structure connecting the transverse moving cylinder 32 and the fixed vertical plate 34, which can be specifically a sliding base with a linear guide rail. A linear bearing is arranged inside it to cooperate with the guiding rod to ensure the moving track accuracy. The fixed vertical plate 34 refers to the support plate body vertically installed on the longitudinal clamping slide 33, which can be specifically formed by processing a steel plate, and is used to install the longitudinal clamping cylinder 35 and transmit the clamping force. The longitudinal clamping vertical plate 36 refers to the clamping plate body directly contacting the metal part, and anti-slip tooth patterns can be arranged at its lower end. Through the design of slidably attaching to the upper surface of the main body base 1, the base plane is used as the sliding support reference plane to enhance the stability of the longitudinal clamping. The longitudinal clamping chute 271 refers to the U-shaped groove opened at the lower part of the horizontal clamping vertical plate 27, and its width is greater than the thickness of the longitudinal clamping vertical plate 36, providing a track avoidance space for the horizontal movement of the longitudinal clamping assembly 3.

[0029] Specifically, when longitudinal clamping is required, the transverse cylinder 32 first drives the longitudinal clamping slide 33 to move transversely so that the longitudinal clamping plate 36 is close to the side of the metal part. In this process, while the longitudinal clamping slide 33 slides transversely, the longitudinal clamping plate 36 always fits on the upper surface of the main base 1 to ensure the straightness of the moving trajectory. After the longitudinal clamping cylinder 35 is started, it pushes the longitudinal clamping plate 36 to move longitudinally until it contacts the side wall of the metal part and applies clamping force. The longitudinal clamping groove 271 at the bottom of the transverse clamping plate 27 provides a through-type avoidance space during the transverse movement stage of the longitudinal clamping plate 36 to prevent mechanical interference between the transverse clamping plate 27 and the longitudinal clamping plate 36. When the metal part needs to be clamped in multiple directions, the transverse clamping assembly 2 is transversely fixed through the transverse clamping plate 27, and the longitudinal clamping assembly 3 realizes longitudinal clamping through the independently controlled transverse cylinder 32 and the longitudinal clamping cylinder 35. The motion trajectories of the two sets of clamping mechanisms are separated in space through the longitudinal clamping groove 271 to eliminate structural conflicts in compound motion.

[0030] Compared with the prior art, the longitudinal clamping mechanism of traditional thread processing equipment often adopts an integral frame structure, and the transverse and longitudinal clamping actions need to be synchronously coordinated and controlled, which is prone to clamping interference due to timing errors. However, this solution uses a split drive design to decompose the transverse clamping and longitudinal clamping into independent control units, and uses the longitudinal clamping slot 271 to achieve physical isolation of the motion trajectory. In the prior art, the moving path of the longitudinal clamping plate is usually limited by the transverse clamping structure, and the clamping sequence needs to be repeatedly adjusted. However, this solution uses the cooperation of the transverse cylinder 32 and the longitudinal clamping slot 271 to enable the longitudinal clamping assembly 3 to have autonomous transverse positioning capabilities without relying on the position state of the transverse clamping mechanism.

[0031] Through the above technical solution, the present application effectively solves the problem of low clamping efficiency caused by structural interference during the longitudinal clamping process, and realizes decoupling control of the longitudinal and transverse clamping actions through a layered drive mechanism. The matching design of the longitudinal clamping slide 33 and the longitudinal clamping slot 271 eliminates the motion conflict between the clamping components. The independent drive mode of the transverse cylinder 32 and the longitudinal clamping cylinder 35 enables the longitudinal clamping position to be flexibly adjusted to meet the clamping requirements of metal parts of different sizes. The design of the longitudinal clamping plate 36 that slides in contact with the base plane enhances the clamping stability and prevents positioning deviations caused by vibration during the clamping process. This structure shortens the adjustment time of the longitudinal clamping mechanism while ensuring the clamping accuracy, and is particularly suitable for multi-angle thread processing scenarios that require frequent changes in processing stations.

[0032] The present application further proposes that the rotating assembly 7 includes a rotating motor 71 fixedly mounted on the upper end of the lifting slide 10 and a connecting spindle 72 rotatably mounted at the center position of the lower end of the lifting slide 10, the angle adjustment assembly 8 is fixedly mounted on the lower end of the connecting spindle 72, a driven gear 73 is fixedly mounted on the connecting spindle 72, the output end of the rotating motor 71 is fixedly connected to a driving spindle 74, and a driving spindle 75 is fixedly mounted on the driving spindle 74 to be meshed and transmission-connected with the driven gear 73. The rotary motor 71 refers to a driving element for providing rotary power, which may be implemented by a servo motor or a stepper motor, and directly transmits torque to the driving spindle 74 via an output shaft. The connecting main shaft 72 refers to the rotating component that carries the angle adjustment component 8, which can be specifically implemented by a hollow transmission shaft, the lower end of which is rigidly connected to the angle adjustment component 8, and the upper end is installed at the lifting slide plate 10 through a bearing. The driven gear 73 refers to a gear component that passively receives driving force, and can be implemented by a helical gear or a spur gear, and is fixed to the connecting main shaft 72 through a key connection to form synchronous rotation. The driving main shaft 74 refers to a rotating shaft that actively transmits power, and can be specifically implemented by a stepped shaft structure, with its two ends respectively connected to the output end of the rotating motor 71 and the driving gear 75 . The driving gear 75 refers to a transmission component that cooperates with the driven gear 73, and can be specifically implemented by an alloy steel gear with a module of 3-5, and the tooth surface is heat-treated to enhance wear resistance. Specifically, after the rotating motor 71 is powered on, the driving spindle 74 generates a rotating motion, and the driving gear 75 rotates synchronously with the driving spindle 74. The meshing transmission of the driving gear 75 and the driven gear 73 transmits power to the connecting spindle 72, driving the angle adjustment assembly 8 fixed at the lower end of the connecting spindle 72 to rotate around the axis as a whole. The bearing structure on the lifting slide 10 provides radial support for the connecting spindle 72 to ensure that there is no radial offset during the rotation process. Compared with the prior art, traditional thread processing devices mostly use belt drive or worm gear mechanism to drive angle adjustment, which has the problems of low transmission accuracy and easy slipping and losing step. This solution realizes power transmission through gear meshing transmission, has higher positioning accuracy and transmission efficiency, and the closed gear box structure can effectively prevent the intrusion of processing debris. Compared with the prior art using multi-stage reducers, this solution integrates the driving gear 75 and the driving spindle 74 into an integrated design, reducing the transmission chain links and reducing maintenance costs. Through the above technical solution, the present application realizes the precise drive for multi-angle adjustment of the tapping cutter 13, ensures the stability of the rotation process of the angle adjustment component 8 through gear meshing, and solves the problem of insufficient thread processing accuracy caused by transmission errors in traditional devices. The cooperative design of the lifting slide plate 10 and the connecting main shaft 72 realizes the integration of power transmission and support functions within a limited space, and is particularly suitable for the processing scenarios of complex workpieces that require frequent adjustment of the tapping angle.

[0033] Please refer to Figures 7 - 9 As shown, the present application further proposes that the angle adjustment component 8 includes a connecting top plate 81. The lower end of the connecting top plate 81 is fixedly connected to a fixed support 83 through a connecting pillar 82. A movable support 84 is rotatably installed on one side of the fixed support 83. Arc-shaped racks 85 for adjusting the position drive of the thread processing component 9 are provided on one side of both the fixed support 83 and the movable support 84. A cylinder support 87 is fixedly provided on the lower end of the connecting top plate 81 near the movable support 84. An adjusting cylinder 86 is rotatably installed on the cylinder support 87, and the output end of the adjusting cylinder 86 is rotatably connected to the movable support 84 for driving the movable support 84 to rotate. Among them, the movable support 84 refers to an arc-shaped structural component that forms a rotating pair with the fixed support 83. Specifically, it can be realized by means of a hinged connection method, and the included angle with the fixed support 83 is changed by rotation to form different processing angles. The fixed support 83 refers to an arc-shaped support component that serves as a reference installation surface. Specifically, it can be fixed to the connecting pillar 82 by welding or bolt connection, and is used to carry the thread processing component 9 and provide a sliding reference. The arc-shaped rack 85 refers to a transmission component arranged along the outer arc trajectory of the fixed support 83 and the movable support 84. Specifically, it can be processed and formed by quenched steel material, and realizes position adjustment through meshing with the gear on the thread processing component 9. The adjusting cylinder 86 refers to a power element that outputs linear displacement. Specifically, it can be realized by a double-acting hydraulic cylinder or an electric push rod, and drives the movable support 84 to rotate around the hinge point through the telescopic movement of the piston rod. Specifically, the connecting top plate 81 and the fixed support 83 form a rigid frame through the connecting pillar 82, and the hinge axis of the fixed support 83 and the movable support 84 is perpendicular to the processing plane. When the adjusting cylinder 86 is driven, its output end pushes the movable support 84 to rotate around the hinge axis, so that the trajectory of the arc-shaped rack 85 of the movable support 84 changes in angle relative to the fixed support 83. The thread processing component 9 can continuously move along the composite arc trajectory of the fixed support 83 and the movable support 84 through the meshing of the gear with the arc-shaped rack 85, forming a processing angle space covering the range of 0° - 90°. During the angle adjustment process, the connecting guide rail 842 of the movable support 84 always maintains a sliding fit with the fixed guide rail 832 of the fixed support 83 to ensure the structural stability. Compared with the prior art, traditional thread processing equipment uses a fixed tool support, and the workpiece needs to be repeatedly disassembled and repositioned when processing threads at different angles. In this solution, through the coordinated action of the movable support 84 and the adjusting cylinder 86, the thread processing assembly 9 can achieve angle adjustment while maintaining the clamping state. Through the above technical solution, the present application realizes the three-dimensional space positioning ability of the thread processing tool. Without disassembling the workpiece, through the rotation adjustment of the movable support 84 and the arc-shaped trajectory movement of the thread processing assembly 9, the tapping tool 13 can cover the processing positions at any angle on the surface of the workpiece. Specifically, when processing the circumferential thread of a tubular metal part, the movable support 84 is adjusted to a state of being unfolded at 180° with the fixed support 83, and the thread processing assembly 9 completes a 360° circumferential feed along the composite arc-shaped rack 85; when processing the inclined thread hole of a plate-shaped metal part, after the movable support 84 is adjusted to a specific inclination angle, the thread processing assembly 9 completes an oblique feed along the arc-shaped trajectory at the corresponding angle. This structure effectively eliminates the problem of repeated workpiece clamping caused by angle limitations in traditional equipment, and the multi-angle thread processing efficiency of a single workpiece can be increased by more than 3 times.

[0034] The present application further proposes that the fixed support 83 includes a fixed arc-shaped seat 831. A fixed guide rail 832 is fixedly arranged at the lower end of the fixed arc-shaped seat 831. A connection groove 833 is arranged on one side of the fixed arc-shaped seat 831, and a connection rotating shaft 834 for rotatably connecting the movable support 84 is fixedly installed at the connection groove 833. Among them, the fixed arc-shaped seat 831 refers to a support structure with an arc-shaped extension surface, which can be specifically realized by a metal part formed by casting or machining. Its arc-shaped extension surface matches the movement trajectory of the movable support 84 to form continuous support. Among them, the fixed guide rail 832 refers to a guiding structure extending along the lower end of the fixed arc-shaped seat 831, which can be specifically realized by a dovetail guide rail or a T-shaped slide rail, and realizes precise guidance through cooperation with sliding components. Among them, the connection groove 833 refers to an installation recess arranged on the side of the fixed arc-shaped seat 831, which can be specifically realized by a rectangular groove or a U-shaped groove formed by milling, and is used to accommodate the installation base of the connection rotating shaft 834. Among them, the connection rotating shaft 834 refers to a cylindrical rotating component with journal bearings at both ends, which can be specifically realized by an interference fit bearing assembly, and realizes the rotational connection of the movable support 84 through shaft-hole cooperation. Specifically, the fixed arc seat 831 and the fixed guide rail 832 form a stable arc-shaped guiding and supporting structure. When the thread processing assembly 9 moves along its surface, radial deviation is prevented by the mechanical limiting effect of the guide rail. The connection groove 833 is opened on the side of the fixed arc seat 831 for embedding the mounting base of the connecting rotating shaft 834, and rigid connection is achieved through bolt fastening. The connecting bushing 843 of the movable support 84 is sleeved on the outer surface of the connecting rotating shaft 834 to form a hinged structure that can rotate around the axis of the rotating shaft, and its rotation angle is controlled by the stroke of the adjusting cylinder 86. The extending direction of the fixed guide rail 832 is consistent with the radian direction of the fixed arc seat 831 to ensure that the thread processing assembly 9 does not get stuck when moving along the predetermined trajectory. Compared with the prior art, the traditional fixed support 83 uses a linear guide rail or a fixed-angle hinge, which cannot achieve the arc trajectory adjustment of the movable support 84, and gaps are easily generated at the hinged part, resulting in positioning deviation. Through the cooperation of the fixed arc seat 831 and the fixed guide rail 832, this solution not only expands the angle adjustment range but also eliminates the radial clearance through the shaft-hole fit of the connecting rotating shaft 834, improving the structural rigidity of the rotational connection. Through the above technical solution, this application solves the problem of insufficient connection stability between the fixed support 83 and the movable support 84, realizes the stable movement of the thread processing assembly 9 within the expanded angle range, adapts to the processing requirements of threaded holes with different inclination angles, and avoids the reduction of processing accuracy caused by connection gaps.

[0035] This application further proposes that the movable support 84 includes a movable arc seat 841 with the same diameter as the fixed arc seat 831. A connecting guide rail 842 that cooperates with the fixed guide rail 832 is fixedly arranged inside the movable arc seat 841. A connecting bushing 843 that is rotatably connected to the connecting rotating shaft 834 is fixedly arranged on one side of the movable arc seat 841. A connecting ear 844 that is rotatably connected to the output end of the adjusting cylinder 86 is fixedly arranged outside the movable arc seat 841. Among them, the movable arc seat 841 refers to a semi-circular supporting structure with the same curvature radius as the fixed arc seat 831. Specifically, it can be realized by a metal component formed by casting or CNC machining, and the trajectory consistency during the angle adjustment is ensured by maintaining concentricity with the fixed arc seat 831. Among them, the connecting guide rail 842 refers to a guiding protrusion arranged along the inner side of the movable arc seat 841. Specifically, it can be realized by a dovetail groove or a T-shaped groove structure, and the axial positioning of the movable support 84 is achieved by forming a complementary sliding pair with the fixed guide rail 832. Among them, the connecting bushing 843 refers to a rotary connecting part with an inner hole. Specifically, it can be realized by a sleeve structure containing a self-lubricating bearing, and the rotational freedom of the movable support 84 is achieved by being sleeved on the connecting rotating shaft 834. Among them, the connecting lug 844 refers to an ear-shaped connecting part with a through hole, which can be specifically realized by a steel plate piece fixed by welding or bolts. A rotating pair is formed with the adjusting cylinder 86 through a pin shaft to transmit thrust. Specifically, the movable arc seat 841 and the fixed arc seat 831 are designed with the same diameter. When rotating around the connecting rotating shaft 834 driven by the adjusting cylinder 86, their concentric structure can maintain the radial constraint of the clamping area. The connecting guide rail 842 and the fixed guide rail 832 form a sliding pair, which limits the radial displacement of the movable support 84 during the angle adjustment process to ensure continuous fitting of the contact surface during the pipe fitting clamping process. The rotational fit between the connecting bushing 843 and the connecting rotating shaft 834 provides rotational freedom, enabling the movable support 84 to adjust the angle within the range of 0-90 degrees around the axis of the fixed support 83. The connecting lug 844 forms a rotatable force transmission node with the adjusting cylinder 86 through a pin shaft, converting the linear thrust of the cylinder into the rotational torque of the movable support 84 to achieve the mechanical transmission of angle adjustment. Compared with the prior art, traditional clamping mechanisms mostly adopt an independent turntable structure, and there is an assembly gap between the movable part and the fixed part, resulting in easy radial deviation when clamping pipe fittings. Through the cooperative design of the arc seats with the same diameter and the complementary guide rails in this solution, the concentric positioning of the clamping surface is always maintained during the angle adjustment process, eliminating the unstable clamping caused by structural gaps. Compared with the hinged structure using a single rotating shaft, the axial constraint of the guide rail pair can enhance the torsional stiffness of the movable support 84 and avoid vibration displacement during the processing. Through the above technical solutions, this application effectively solves the problem of clamping stability during the processing of pipe-shaped metal parts. Through the concentric guiding structure of the movable support 84 and the fixed support 83, it is ensured that the clamping surface can form a uniform circumferential constraint at any angle. The adjustable angle range covers the circumferential processing requirements of pipe fittings. At the same time, the composite constraint mechanism of the guide rail sliding pair and the rotating shaft rotating pair maintains the overall rigidity of the clamping mechanism while realizing the angle adjustment function.

[0036] Please refer to Figures 3 - 10As shown in the figure, the present application further proposes that the thread processing assembly 9 includes a guide rail connecting seat 91. At the upper end of the guide rail connecting seat 91, there is a guide rail chute 92 that slidably cooperates with the fixed guide rail 832 and the connecting guide rail 842. At the lower end of the guide rail connecting seat 91, a tapping cylinder 96 is fixedly arranged. The output end of the tapping cylinder 96 is fixedly connected to a tapping support 97. A tapping motor 98 is fixedly installed on the tapping support 97. A tool mounting head 99 is fixedly installed on the output shaft of the tapping motor 98. The tool mounting head 99 is used for detachably installing a tapping tool 13. On one side of the guide rail connecting seat 91 close to the arc-shaped rack 85, a motor support 93 is fixedly connected. An adjustment motor 94 is fixedly installed on the motor support 93. An adjustment gear 95 that meshes and drives with the arc-shaped rack 85 is fixedly installed on the output shaft of the adjustment motor 94. The position of the thread processing assembly 9 on the angle adjustment assembly 8 is adjusted through the gear-rack transmission.

[0037] Among them, the guide rail chute 92 refers to a groove structure arranged at the upper end of the guide rail connecting seat 91. Specifically, a U-shaped groove or a T-shaped groove structure matching the cross-sectional shapes of the fixed guide rail 832 and the connecting guide rail 842 can be adopted to enable the guide rail connecting seat 91 to slide along the guide rail. The tapping cylinder 96 refers to a linear driving device fixed at the lower end of the guide rail connecting seat 91. Specifically, a double-acting hydraulic cylinder or a pneumatic cylinder can be adopted to control the longitudinal feeding movement of the tapping support 97. The adjustment gear 95 refers to a transmission component installed on the output shaft of the adjustment motor 94. Specifically, an involute gear structure with a matching module can be adopted to convert the rotational movement of the motor into a linear displacement of the guide rail connecting seat 91 through meshing with the arc-shaped rack 85.

[0038] Specifically, when the thread processing position needs to be adjusted, the adjustment motor 94 drives the adjustment gear 95 to rotate. The meshing drive between the gear and the arc-shaped rack 85 drives the guide rail connecting seat 91 to slide along the fixed guide rail 832 and the connecting guide rail 842 to a set angular position. The tapping cylinder 96 pushes the tapping support 97 downward to make the tapping tool 13 contact the surface of the workpiece. At this time, the tapping motor 98 drives the tool mounting head 99 to rotate for thread processing. The tool mounting head 99 can quickly replace tools of different specifications through a quick-change interface. The cooperation between the guide rail chute 92 and the guide rail ensures the movement accuracy.

[0039] Compared with the prior art, the traditional device mostly uses a manual knob to adjust the tool angle, which requires shutdown operation and is difficult to ensure the positioning accuracy. However, in this solution, the automatic angle adjustment is realized through a motor-driven gear-rack transmission mechanism, and the angle can be switched during the processing, and the adjustment accuracy can reach ±0.5 degrees. Compared with the adjustment method using a linear module, the cooperation structure of the arc-shaped guide rail and the gear-rack is more suitable for the circular motion trajectory and avoids the structural complexity brought by multi-axis linkage.

[0040] Through the above technical solution, the present application realizes continuous angular adjustment of the thread processing assembly 9 on the arc track, can complete multi-angle thread processing without re-clamping the workpiece, and effectively improves the processing efficiency. The rigid connection design of the gear-rack transmission mechanism and the guide rail ensures the repeated positioning accuracy of the position adjustment, and can meet the processing requirements of precision workpieces such as aviation parts and automotive parts. The coordinated control of the tapping cylinder 96 and the motor keeps the tool in a non-working state before contacting the workpiece, reducing tool wear during the idle stroke.

[0041] The present application further proposes that a motor support 93 is fixedly connected to one side of the guide rail connection seat 91 close to the arc rack 85. An adjustment motor 94 is fixedly installed on the motor support 93. An adjustment gear 95 meshing and drivingly connected to the arc rack 85 is fixedly installed on the output shaft of the adjustment motor 94. The position of the thread processing assembly 9 on the angle adjustment assembly 8 is adjusted through the gear-rack transmission.

[0042] Among them, the guide rail connection seat 91 refers to the moving base carrying the thread processing assembly 9, and can specifically be formed by casting cast iron or aluminum alloy to form a sliding base structure. Its guide rail chute 92 and the fixed guide rail 832 and the movable guide rail of the angle adjustment assembly 8 form a sliding pair to realize the position adjustment function along the arc track. The motor support 93 refers to the support structure for fixing the adjustment potential, and can specifically use the bolt connection method to fix the L-shaped steel plate on the side of the guide rail connection seat 91 to provide a stable installation platform for the adjustment motor 94. The adjustment motor 94 refers to the power source for driving the position adjustment, and can specifically use a stepping motor or a servo motor, and directly drives the adjustment gear 95 to rotate through the output shaft. The adjustment gear 95 refers to the active component meshing and driving with the arc rack 85. The arc rack 85 refers to the driven transmission part fixed on the angle adjustment assembly 8, and can specifically use an arc track structure made of the same material as the adjustment gear 95, and its tooth profile parameters are completely matched with the adjustment gear 95 to ensure the transmission accuracy.

[0043] Specifically, when multi-angle thread processing is required, after the adjustment motor 94 is started, it drives the adjustment gear 95 on the output shaft to rotate. Since the adjustment gear 95 and the arc rack 85 fixedly installed on the angle adjustment assembly 8 form a meshing relationship, the linear driving force generated by the gear-rack transmission pushes the guide rail connection seat 91 to move along the arc track composed of the fixed guide rail 832 and the movable guide rail. The guide rail connection seat 91 drives the entire thread processing assembly 9 to change its position on the angle adjustment assembly 8, so that the tapping tool 13 reaches the predetermined processing angle. During this process, the pulse control of the stepping motor can achieve millimeter-level position accuracy, and the closed-loop feedback system of the servo motor can correct the position error in real time. This adjustment mechanism allows the tapping tool 13 to be arbitrarily positioned within the 0-90 degree arc range, covering the multi-angle processing requirements of common tubular parts.

[0044] Compared with the prior art, traditional thread processing devices usually rely on manual adjustment of the tool position, which has the defects of poor positioning accuracy and long time consumption. Although some improved solutions using linear guides can achieve position adjustment in the linear direction, they cannot meet the arc trajectory movement required for curved surface workpieces. Through the synergistic effect of the rack and pinion and the arc guide, this solution achieves precise control of the curved surface path while maintaining mechanical rigidity, and solves the technical bottleneck of repeated clamping required for complex angle thread processing.

[0045] Through the above technical solution, this application realizes the automatic position adjustment of the tapping tool along the preset arc trajectory, and can precisely control the machining angle of the tool in the circumferential direction of the tubular part. This structure effectively expands the application range of the processing device and can accommodate the processing requirements of metal pipe fittings with different curvatures. The rigid meshing characteristic of the rack and pinion drive avoids the defect of easy slipping of the traditional belt drive and ensures the position stability under heavy cutting conditions. The programmed control method of the adjustment motor significantly improves the changeover efficiency of multi-variety and small-batch production, and can reduce the preparation time compared with manual adjustment.

[0046] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application shall still fall within the scope covered by the patent of the present invention.

Claims

1. A thread processing device for metal part processing, including a main body base (1). At the four corner positions of the upper end of the main body base (1), vertically upward support columns (4) are fixedly arranged. At the top of the support columns (4), a main body top plate (5) is fixedly arranged. At the center position of the upper end of the main body top plate (5), a lifting oil cylinder (6) is fixedly installed. The output end of the lifting oil cylinder (6) is fixedly connected to a lifting slide plate (10). The lifting slide plate (10) is slidably installed on the support columns (4), and its characteristics are as follows: An angle adjustment component (8) is arranged at the lower end of the lifting slide plate (10). A rotation component (7) is fixedly installed at the upper end of the lifting slide plate (10). The rotation component (7) is used to drive the angle adjustment component (8) to rotate; A thread processing component (9) is installed on the angle adjustment component (8). A tapping cutter (13) is detachably installed on the thread processing component (9) and its position on the angle adjustment component (8) can be adjusted to perform thread processing on different angles of metal parts; On both lateral ends of the main body base (1) along the transverse direction, lateral clamping components (2) for laterally clamping metal parts are installed. On the lateral clamping components (2), longitudinal clamping components (3) for longitudinally clamping metal parts are installed; A clamping through hole (11) is arranged at the center position of the main body base (1). A three-jaw clamping seat (12) for clamping tubular metal parts is installed in the clamping through hole (11).

2. The thread processing device for metal part processing according to claim 1, characterized in that, The lateral clamping component (2) includes two groups of lateral supports (21) fixedly arranged on the side wall of the main body base (1). A driving rod (23) is rotatably installed between the two groups of lateral supports (21). On one group of lateral supports (21), a clamping motor (22) for driving the driving rod (23) to rotate is fixedly installed; A transverse clamping bottom plate (26) is slidably connected to the upper end of the main body base (1). The driving rod (23) is used to drive the transverse clamping bottom plate (26) to slide on the upper end of the main body base (1). A transverse clamping vertical plate (27) is fixedly arranged at the upper end of the transverse clamping bottom plate (26).

3. A thread processing device for metal part processing according to claim 2, characterized in that, The driving rod (23) is a half-guide slide rod (231) and a half-threaded screw rod (232). At one end of the transverse clamping bottom plate (26), a guide slide seat (25) slidably matched with the guide slide rod (231) is fixedly arranged. At the other end of the transverse clamping bottom plate (26), a thread slide seat (24) threadedly connected to the threaded screw rod (232) is fixedly arranged.

4. A thread processing device for metal part processing according to claim 2, characterized in that, The longitudinal clamping component (3) includes a longitudinal support (31) fixedly arranged at the upper end of the transverse clamping bottom plate (26); A transverse moving air cylinder (32) is fixedly installed on the longitudinal support (31). The output end of the transverse moving air cylinder (32) is fixedly connected to a longitudinal clamping slide seat (33). A fixed vertical plate (34) is fixedly arranged in the middle of the longitudinal clamping slide seat (33); A longitudinal clamping cylinder (35) is fixedly installed on the fixed vertical plate (34). The output end of the longitudinal clamping cylinder (35) is fixedly connected to a longitudinal clamping vertical plate (36). The longitudinal clamping vertical plate (36) is slidably attached to the upper surface of the main body base (1), and a longitudinal clamping chute (271) for avoiding the longitudinal clamping vertical plate (36) is provided at the lower part of the transverse clamping vertical plate (27).

5. A thread processing device for metal part processing according to claim 1, characterized in that, The rotating assembly (7) includes a rotating motor (71) fixedly installed at the upper end of the lifting slide plate (10) and a connecting main shaft (72) rotatably installed at the central position of the lower end of the lifting slide plate (10); The angle adjustment assembly (8) is fixedly installed at the lower end of the connecting main shaft (72), and a driven gear (73) is fixedly installed on the connecting main shaft (72); The output end of the rotating motor (71) is fixedly connected to a driving main shaft (74), and a driving gear (75) meshing and drivingly connected with the driven gear (73) is fixedly installed on the driving main shaft (74).

6. A thread processing device for metal part processing according to claim 1, characterized in that, The angle adjustment assembly (8) includes a connecting top plate (81). The lower end of the connecting top plate (81) is fixedly connected to a fixed support (83) through a connecting pillar (82). A movable support (84) is rotatably installed on one side of the fixed support (83); Arc-shaped racks (85) for driving the adjustment of the thread processing assembly (9) are provided on one side of both the fixed support (83) and the movable support (84); A cylinder support (87) is fixedly provided on one side of the lower end of the connecting top plate (81) near the movable support (84). An adjustment cylinder (86) is rotatably installed on the cylinder support (87). The output end of the adjustment cylinder (86) is rotatably connected to the movable support (84) for driving the movable support (84) to rotate.

7. A thread processing device for metal part processing according to claim 6, characterized in that, The fixed support (83) includes a fixed arc-shaped seat (831), and a fixed guide rail (832) is fixedly provided at the lower end of the fixed arc-shaped seat (831); A connecting groove (833) is provided on one side of the fixed arc-shaped seat (831), and a connecting rotating shaft (834) for rotatably connecting the movable support (84) is fixedly installed at the connecting groove (833).

8. A thread processing device for metal part processing according to claim 7, characterized in that, The movable support (84) includes a movable arc-shaped seat (841) with the same diameter as the fixed arc-shaped seat (831). A connecting guide rail (842) matching the fixed guide rail (832) is fixedly provided inside the movable arc-shaped seat (841); A connecting shaft sleeve (843) rotatably connected to the connecting rotating shaft (834) is fixedly provided on one side of the movable arc-shaped seat (841); A connecting ear (844) rotatably connected to the output end of the adjustment cylinder (86) is fixedly provided on the outside of the movable arc-shaped seat (841).

9. A thread processing device for metal part processing according to claim 8, characterized in that, The thread processing assembly (9) includes a guide rail connecting seat (91). A guide rail chute (92) slidably matching the fixed guide rail (832) and the connecting guide rail (842) is provided at the upper end of the guide rail connecting seat (91); A tapping cylinder (96) is fixedly provided at the lower end of the guide rail connecting seat (91). The output end of the tapping cylinder (96) is fixedly connected to a tapping support (97), and a tapping motor (98) is fixedly installed on the tapping support (97); A tool mounting head (99) is fixedly installed on the output shaft of the tapping motor (98), and the tool mounting head (99) is used for detachably installing a tapping tool (13).

10. A thread processing device for metal part processing according to claim 9, characterized in that, A motor support (93) is fixedly connected to one side of the guide rail connecting seat (91) close to the arc-shaped rack (85), and an adjustment motor (94) is fixedly installed on the motor support (93); An adjustment gear (95) meshing and drivingly connected with the arc-shaped rack (85) is fixedly installed on the output shaft of the adjustment motor (94), and the position of the thread processing assembly (9) on the angle adjustment assembly (8) is adjusted through gear-rack transmission.

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