CN120347299A - Thread machining device for machining metal piece - Google Patents
Thread machining device for machining metal pieceInfo
- Publication number
- CN120347299A CN120347299A CN202510780003.XA CN202510780003A CN120347299A CN 120347299 A CN120347299 A CN 120347299A CN 202510780003 A CN202510780003 A CN 202510780003A CN 120347299 A CN120347299 A CN 120347299A
- Authority
- CN
- China
- Prior art keywords
- clamping
- support
- transverse
- seat
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
- B23G1/04—Machines with one working-spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
本发明公开了一种用于金属件加工用螺纹加工装置，涉及金属加工设备技术领域，升降滑板的下端设置有角度调节组件，升降滑板的上端固定安装有旋转组件，旋转组件用于驱动角度调节组件转动，角度调节组件上安装有螺纹加工组件，螺纹加工组件上可拆卸安装有攻牙刀；主体底座沿着横向的两侧端均安装有用于对金属件进行横向夹紧的横向夹持组件，横向夹持组件上安装有用于对金属件纵向夹紧的纵向夹持组件；主体底座的中心位置设置有夹持通孔，夹持通孔内安装有用于对管型金属件夹持的三爪夹持座；本发明通过旋转组件与角度调节组件的协同作用，使刀具可在0‑90度倾斜范围内任意定位，配合弧形导轨的位置调节，实现复杂曲面的多角度加工。
The invention discloses a thread processing device for metal parts processing, which relates to the technical field of metal processing equipment. The lower end of the lifting slide is provided with an angle adjustment component, and the upper end of the lifting slide is fixedly provided with a rotating component, the rotating component is used to drive the angle adjustment component to rotate, the angle adjustment component is provided with a thread processing component, and the thread processing component is detachably provided with a tapping tool; both side ends of the main body base along the horizontal direction are provided with a transverse clamping component for transversely clamping the metal parts, and the transverse clamping component is provided with a longitudinal clamping component for longitudinally clamping the metal parts; 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; the invention realizes multi-angle processing of complex curved surfaces by the synergistic effect of the rotating component and the angle adjustment component, and cooperates with the position adjustment of the arc guide rail.
Description
Technical Field
The invention relates to the technical field of metal processing equipment, in particular to a thread processing device for processing metal parts.
Background
The metal piece processing refers to processing the metal piece through mechanical equipment, tools and processes, and comprises cutting, bending, forming, punching, bending and the like of materials. With the progress of economic globalization, metal parts are widely used in various industries because of their high strength, high corrosion resistance and beautiful appearance. The thread processing for metal parts is widely applied to each part, and a complete processing flow is formed. However, the conventional thread processing device has obvious limitations that firstly, the conventional thread processing device can only process threads in a single direction, when processing is required to be carried out on different positions of a metal piece, the metal piece is required to be clamped again for many times, so that the processing efficiency is greatly reduced, the processing precision is easily reduced due to repeated clamping, secondly, for certain special-angle thread processing, the metal piece is difficult to keep stable in the processing process due to lack of proper clamping conditions, the processing quality is influenced, and furthermore, the conventional thread processing device is not suitable for the processing requirements of pipe-shaped pieces and plate-shaped pieces at the same time, so that enterprises are required to purchase a plurality of devices to meet the processing requirements of the metal pieces with different specifications, and the input cost of the equipment is increased. In addition, traditional equipment is comparatively single in the centre gripping mode, can't realize multi-direction centre gripping simultaneously, and lacks angle adjusting function, and these have all limited the efficiency and the quality promotion of screw thread processing.
Disclosure of Invention
The invention aims to provide a thread processing device for processing a metal part, which solves the problems that the thread processing device for the metal part is single in processing direction, unstable in workpiece clamping and incapable of adapting to workpieces of different shapes.
The aim of the invention can be achieved by the following technical scheme:
A thread machining device for metal piece machining comprises a main body base, vertical upward supporting columns are fixedly arranged at four corners of the upper end of the main body base, a main body top plate is fixedly arranged at the top of each supporting column, a lifting oil cylinder is fixedly arranged at the center of the upper end of each main body top plate, an output end of each lifting oil cylinder is fixedly connected with a lifting sliding plate, each lifting sliding plate is slidably arranged on each supporting column, an angle adjusting component is arranged at the lower end of each lifting sliding plate, a rotating component is fixedly arranged at the upper end of each lifting sliding plate and used for driving the corresponding angle adjusting component to rotate, a thread machining component is arranged on each angle adjusting component, tapping cutters are detachably arranged on the thread machining components and can be adjusted to the positions of the angle adjusting components, threads are machined on different angles of metal pieces, transverse clamping components used for transversely clamping the metal pieces are arranged at the two lateral side ends of the main body base, longitudinal clamping components used for longitudinally clamping the metal pieces are arranged on the transverse clamping components, clamping through holes are formed in the center of the main body base, and three-jaw clamping seats used for clamping the tubular metal pieces are arranged in the clamping through holes.
Preferably, the horizontal clamping assembly comprises two groups of horizontal supports fixedly arranged on the side wall of the main body base, a driving rod is rotatably arranged between the two groups of horizontal supports, a clamping motor for driving the driving rod to rotate is fixedly arranged on one group of horizontal supports, the upper end of the main body base is slidably connected with a horizontal clamping bottom plate, the driving rod is used for driving the horizontal clamping bottom plate to slide at the upper end of the main body base, and a horizontal clamping vertical plate is fixedly arranged at the upper end of the horizontal clamping bottom plate.
Preferably, the driving rod is a half guide sliding rod and a half screw rod, one end of the transverse clamping bottom plate is fixedly provided with a guide sliding seat in sliding fit with the guide sliding rod, and the other end of the transverse clamping bottom plate is fixedly provided with a screw sliding seat in threaded connection with the screw rod.
Preferably, the vertical clamping assembly comprises a vertical support fixedly arranged at the upper end of the horizontal clamping bottom plate, a transverse moving cylinder is fixedly arranged on the vertical support, an output end of the transverse moving cylinder is fixedly connected with a vertical clamping sliding seat, a fixed vertical plate is fixedly arranged in the middle of the vertical clamping sliding seat, a vertical clamping cylinder is fixedly arranged on the fixed vertical plate, an output end of the vertical clamping cylinder is fixedly connected with a vertical clamping vertical plate, the vertical clamping vertical plate is in sliding fit with the upper surface of the main body base, and a vertical clamping sliding groove for avoiding the vertical clamping vertical plate is formed in the lower portion of the horizontal clamping vertical plate.
Preferably, the rotating assembly comprises a rotating motor fixedly arranged at the upper end of the lifting slide plate and a connecting main shaft rotatably arranged at the central position of the lower end of the lifting slide plate, the angle adjusting assembly is fixedly arranged at the lower end of the connecting main shaft, a driven gear is fixedly arranged on the connecting main shaft, the output end of the rotating motor is fixedly connected with a driving main shaft, and a driving gear which is in meshed transmission connection with the driven gear is fixedly arranged on the driving main shaft.
Preferably, the angle adjusting component comprises a connecting top plate, the lower end of the connecting top plate is fixedly connected with a fixed support through a connecting support, one side of the fixed support is rotationally provided with a movable support, one sides of the fixed support and the movable support are respectively provided with an arc-shaped rack for adjusting the position of the thread machining component, one side, close to the movable support, of the lower end of the connecting top plate is fixedly provided with a cylinder support, an adjusting cylinder is rotationally installed on the cylinder support, and the output end of the adjusting cylinder is rotationally connected on the movable support and used for driving the movable support to rotate.
Preferably, the fixed support comprises a fixed arc-shaped seat, a fixed guide rail is fixedly arranged at the lower end of the fixed arc-shaped seat, a connecting groove is formed in one side of the fixed arc-shaped seat, and a connecting rotating shaft for rotating and connecting the movable support is fixedly arranged at the connecting groove.
Preferably, the movable support comprises a movable arc-shaped seat with the same diameter as the fixed arc-shaped seat, a connecting guide rail matched with the fixed guide rail is fixedly arranged on the inner side of the movable arc-shaped seat, a connecting shaft sleeve rotationally connected with the connecting rotating shaft is fixedly arranged on one side of the movable arc-shaped seat, and a connecting support lug rotationally connected with the output end of the adjusting cylinder is fixedly arranged on the outer side of the movable arc-shaped seat.
Preferably, the thread processing subassembly includes the guide rail connecting seat, guide rail connecting seat upper end be provided with fixed rail and connecting rail sliding fit's guide rail spout, the lower extreme of guide rail connecting seat is fixedly provided with and attacks the tooth cylinder, the output fixedly connected with who attacks the tooth cylinder attacks the tooth support, the fixed mounting has on the tooth support and attacks the tooth motor, the fixed mounting has the sword installation head on the output shaft of attacking the tooth motor, the sword installation head is used for demountable installation to attack the tooth sword.
Preferably, one side of the guide rail connecting seat, which is close to the arc-shaped rack, is fixedly connected with a motor support, an adjusting motor is fixedly installed on the motor support, an adjusting gear which is in meshed transmission connection with the arc-shaped rack is fixedly installed on an output shaft of the adjusting motor, and the position of the thread machining assembly on the angle adjusting assembly is adjusted through gear-rack transmission.
The invention has the beneficial effects that:
(1) Through the synergistic effect of the rotating assembly and the angle adjusting assembly, the cutter can be positioned at will within the inclination range of 0-90 degrees, and the multi-angle machining of the complex curved surface is realized by matching with the position adjustment of the arc-shaped guide rail. The device is crossly clamped to form three-dimensional constraint, and is matched with a special three-jaw clamp to effectively improve the clamping stability of the special-shaped workpiece. The traditional equipment needs to be provided with a plurality of sets of clamps to deal with different workpieces, and the device integrates two clamping modes and remarkably improves the universality of the equipment.
(2) The driving rod is divided into the guide sliding rod and the threaded screw rod, and the complementary characteristics of the guide sliding rod and the threaded screw rod are utilized, so that offset interference is eliminated through the sliding pair, accurate displacement is realized through threaded transmission, and the problems of uneven distribution of clamping force and insufficient movement stability are solved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the vertical processing structure of the present invention;
FIG. 2 is a schematic illustration of the cradle of the present invention lowered;
FIG. 3 is a schematic perspective view of the invention taken in section along the direction A-A in FIG. 2;
FIG. 4 is a schematic view of the structure of the present invention in other directions;
FIG. 5 is a schematic view of the mounting structure of the lateral clamp assembly of the present invention;
FIG. 6 is a schematic perspective view of the present invention taken in section in the direction B-B in FIG. 5;
FIG. 7 is a schematic perspective view of a stationary support of the present invention;
FIG. 8 is a schematic illustration of an axial structure of a mounting bracket of the present invention;
FIG. 9 is a schematic perspective view of the cradle of the present invention;
fig. 10 is a schematic perspective view of a thread forming assembly according to the present invention.
In the figure, 1, a main body base; 2, a transverse clamping assembly; 21, transverse supports, 22, clamping motors, 23, driving rods, 231, guide sliding rods, 232, screw rods, 24, screw sliding seats, 25, guide sliding seats, 26, transverse clamping bottom plates, 27, transverse clamping vertical plates, 271, longitudinal clamping sliding grooves, 3, longitudinal clamping assemblies, 31, longitudinal supports, 32, transverse cylinders, 33, longitudinal clamping sliding seats, 34, fixed vertical plates, 35, longitudinal clamping cylinders, 36, longitudinal clamping vertical plates, 4, supporting columns, 5, main body top plates, 6, lifting oil cylinders, 7, rotating assemblies, 71, rotating motors, 72, connecting spindles, 73, driven gears, 74, driving spindles, 75, driving gears, 8, angle adjusting assemblies, 81, connecting top plates, 82, connecting struts, 83, fixed supports, 831, fixed arc-shaped seats, 832, fixed rails, 833, connecting grooves, 834, connecting shafts, 84, movable supports, 841, movable arc-shaped seats, 842, connecting rails, 843, connecting shafts, 844, connecting lugs, 85, arc-shaped racks, 86, adjusting cylinders, 87, cylinder supports, 9, guide rails, 91, driving shafts, 91, 92, driving gears, 95, lifting brackets, 10, lifting brackets, 98, lifting brackets, 95, 10, lifting brackets, and tapping brackets.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the prior art, the metal piece thread machining device generally has the problems of single machining direction, unstable workpiece clamping and incapability of adapting to workpieces with different shapes. When conventional equipment carries out multi-angle processing, the workpiece needs to be repeatedly disassembled, so that the processing efficiency is reduced. For the mixed processing scene of the tubular part and the plate part, operators need to frequently replace equipment or adjust fixtures, and the processing precision is difficult to ensure. The traditional clamping mechanism has poor adaptability to special-shaped workpieces, and is easy to displace in the processing process, so that the thread forming quality is affected.
In order to solve the above problems, the prior art scheme is difficult to simultaneously meet the multi-angle processing requirements and the workpiece compatibility problem. Through analysis, the flexible adjustment of the machining angle is required to break through the limitation of the movement track of the cutter, and a multidimensional positioning mechanism is developed. For clamping stability, a composite clamping system needs to be designed to accommodate workpieces of different geometric characteristics. Through multiple tests, the movement range of the cutter can be expanded by adopting the combination of the rotating mechanism and the arc-shaped guide rail, and the workpiece can be fixed in multiple directions by combining the cross clamping layout.
Referring to fig. 1-10, the present invention is a thread processing device for metal processing, wherein four corners of the upper end of a main body base 1 are provided with support columns 4, the top of each support column 4 is fixed with a main body top plate 5, the center of the upper end of the main body top plate 5 is provided with a lifting cylinder 6, and the output end of the lifting cylinder 6 is connected with a lifting slide plate 10 slidably mounted on each support column 4. The lower end of the lifting slide plate 10 is provided with an angle adjusting component 8, and the upper end of the lifting slide plate is provided with a rotating component 7 for driving the angle adjusting component 8 to rotate. The angle adjusting assembly 8 is provided with an adjustable position threading assembly 9 which is provided with a detachable tapping blade 13. The two sides of the main body base 1 are provided with transverse clamping assemblies 2, and the transverse clamping assemblies 2 are provided with longitudinal clamping assemblies 3. The center of the main body base 1 is provided with a clamping through hole 11, a three-jaw clamping seat 12 is built in.
The main body base 1 refers to a basic platform for bearing each functional module, and can be specifically realized by adopting a cast iron or welded steel structure to provide rigid support for equipment. The support column 4 is a column structure connecting the base and the top plate to form a stable frame system. The lifting oil cylinder 6 refers to a power device for driving the cutter to axially feed, and can be realized by a hydraulic cylinder or an electric push rod to control the thread machining depth. The angle adjusting component 8 refers to a mechanical device for controlling the inclination angle of the cutter, and can be specifically realized by adopting an arc-shaped guide rail and an adjusting cylinder 86 in combination, so that the range of the machining angle is widened. The rotating component 7 refers to a transmission mechanism for driving the cutter to rotate, and can be realized by adopting a gear transmission or belt transmission system to change the circumferential position of processing. The transverse clamping assembly 2 refers to a clamping device for restraining the width direction of a workpiece, and can be specifically realized by adopting a screw driving sliding block structure, so that the transverse clamping assembly is suitable for workpieces with different sizes. The longitudinal clamping assembly 3 refers to a positioning device for limiting the length direction of a workpiece, and can be specifically realized by adopting a cylinder driving clamping plate structure, so that displacement in the machining process is prevented. The three-jaw clamping seat 12 refers to a special clamp for clamping a tubular workpiece, and ensures coaxiality of the tubular workpiece.
Specifically, the lifting slide plate 10 is driven by the oil cylinder to vertically move along the support column 4, so as to drive the tapping knife 13 to complete axial feeding movement. The rotating assembly 7 drives the angle adjusting assembly 8 to integrally rotate through gear transmission, so that the tapping knife 13 obtains circumferential positioning capability. The movable support 84 in the angle adjusting assembly 8 rotates relative to the fixed support 83 under the action of the air cylinder to form different opening and closing angles, and the precise control of the inclination angle of the cutter is realized by matching with the position adjustment of the thread machining assembly 9 along the arc-shaped guide rail. The transverse clamping assembly 2 synchronously drives the clamping plates at two sides to move towards each other, and applies clamping force from two sides of the workpiece. The longitudinal clamping assemblies 3 independently act on the transverse clamping mechanisms to assist in positioning from the end of the workpiece. The three-jaw clamping seat 12 and the transverse and longitudinal clamping assembly 3 form complementary relation, and an applicable clamping mode is selected according to the shape of the workpiece.
Compared with the prior art, the traditional equipment is limited by a fixed cutter track, and only can process in the vertical direction. According to the scheme, through the synergistic effect of the rotating assembly 7 and the angle adjusting assembly 8, the cutter can be positioned at will in the inclination range of 0-90 degrees, and the multi-angle machining of the complex curved surface is realized by matching with the position adjustment of the arc-shaped guide rail. The existing clamping system is clamped in a single direction, three-dimensional constraint is formed by the crossed clamping layout of the device, and the clamping stability of the special-shaped workpiece is effectively improved by matching with a special three-jaw clamp. The traditional equipment needs to be provided with a plurality of sets of clamps to deal with different workpieces, and the device integrates two clamping modes and remarkably improves the universality of the equipment.
Through the technical scheme, the multi-angle thread processing can be completed under the condition that the workpiece is not disassembled, and the auxiliary operation time is shortened. The transverse clamping assembly 3 and the longitudinal clamping assembly form three-dimensional constraint, and the thin-wall part is prevented from being deformed during processing. The three-jaw clamping seat 12 and the plate part clamping mechanism are rapidly switched, so that the mixed processing requirement of the tubular part and the plate part is met. The linkage control of the angle adjusting component 8 and the rotating component 7 ensures that the cutter maintains the correct feeding direction at different processing positions. The quick replacement design of the tapping knife 13 is suitable for machining of various thread specifications, and the utilization rate of equipment is improved.
Referring to fig. 3-6, the present application further proposes that the transverse clamping assembly 2 includes two sets of transverse supports 21 fixedly disposed on the side wall of the main body base 1, a driving rod 23 is rotatably mounted between the two sets of transverse supports 21, a clamping motor 22 for driving the driving rod 23 to rotate is fixedly mounted on one set of transverse 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 for driving the transverse clamping bottom plate 26 to slide on the upper end of the main body base 1, and a transverse clamping vertical plate 27 is fixedly disposed on the upper end of the transverse clamping bottom plate 26.
The transverse support 21 is a supporting structure fixed on the side wall of the main body base 1, and can be realized by a rigid metal frame with a bearing seat, which has the function of providing stable rotation support for the driving rod 23 and ensuring the coaxiality of a transmission system. The driving rod 23 refers to a transmission part penetrating through the two sets of transverse supports 21, and can specifically adopt a sectional rod structure, which is used for converting the rotation motion of the clamping motor 22 into the linear displacement of the transverse clamping bottom plate 26. The clamping motor 22 is a power output device, and can be realized by a servo motor or a stepping motor, and the function of the clamping motor is to control the moving speed and the positioning precision of the transverse clamping bottom plate 26 through the rotation of the driving rod 23. The transverse clamping bottom plate 26 refers to a bearing platform slidably mounted at the upper end of the main body base 1, and can specifically adopt a metal plate structure with linear guide rails, which is used for bearing the longitudinal clamping assembly 3 and realizing transverse position adjustment. The horizontal clamping vertical plate 27 refers to a clamping reference surface vertically fixed on the upper part of the horizontal clamping bottom plate 26, and specifically, a steel plate structure with a positioning groove can be adopted, and the function of the horizontal clamping vertical plate and the longitudinal clamping assembly 3 together form a workpiece clamping reference surface.
Specifically, the clamping motor 22 drives the horizontal clamping bottom plate 26 to slide horizontally along the main body base 1 by rotation of the driving lever 23. The two ends of the driving rod 23 are respectively supported by two sets of transverse supports 21, forming a stable rotation axis. When the clamping motor 22 is activated, the rotary motion of the drive rod 23 is converted by the transmission mechanism into a linear motion of the transverse clamping base 26, which motion 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 the horizontal clamping bottom plate moves synchronously, and an adjustable clamping space is formed by matching the clamping action of the longitudinal clamping assembly 3. For tubular workpieces, the transverse clamping vertical plate 27 moves to the side of the clamping through hole 11 to form a supporting surface, and for plate-type workpieces, the transverse clamping vertical plate 27 and the longitudinal clamping assembly 3 form an L-shaped clamping structure together. The continuous rotation of the driving rod 23 can realize stepless position adjustment of the transverse clamping bottom plate 26, and adapt to clamping requirements of workpieces with different sizes.
Compared with the prior art, the traditional transverse clamping device generally adopts a clamping jaw structure with fixed spacing, the spacing of the clamping devices needs to be manually adjusted, and the mixed processing of the pipe fitting and the plate is difficult to be compatible. In the prior art, the problem of low positioning precision and unbalanced clamping force exists in a mode of directly pushing the clamping blocks by using the hydraulic cylinders. The mechanical transmission structure of the driving rod 23 and the horizontal clamping bottom plate 26 realizes the accurate control of the clamping position, and the combined design of the horizontal clamping vertical plate 27 and the longitudinal clamping assembly 3 can simultaneously meet the compound requirements of pipe inner wall support and plate edge clamping.
Through the technical scheme, the metal part transverse clamping quick positioning and self-adaptive adjustment are realized. By means of the mechanical linkage of the driving rod 23 and the transverse clamping bottom plate 26, clamping of tubular parts with different outer diameters and plate parts with different thicknesses can be compatible under the condition that the clamp is not replaced. The vertical positioning characteristic of the transverse clamping vertical plate 27 prevents the workpiece from tilting and shifting in the clamping process, and ensures the axial positioning precision during the thread machining. The closed-loop control system driven by the clamping motor 22 can realize digital control of the clamping position, and the clamping efficiency and the repeated positioning accuracy are remarkably improved.
The application further provides that the driving rod 23 is a half guide sliding rod 231 and a half screw thread screw rod 232, one end of the transverse clamping bottom plate 26 is fixedly provided with a guide sliding seat 25 which is in sliding fit with the guide sliding rod 231, and the other end of the transverse clamping bottom plate 26 is fixedly provided with a screw thread sliding seat 24 which is in screw thread connection with the screw thread screw rod 232.
The guide slide bar 231 is a metal bar having a smooth cylindrical surface, the outer diameter of which forms a clearance fit with the inner diameter of the guide slide 25, and lateral deflection is limited by surface contact during sliding. The screw rod 232 is a metal rod with spiral grooves on the surface, and can be specifically realized by adopting a trapezoidal thread or a ball screw structure, and the screw rod is meshed with the thread of the thread sliding seat 24 to convert rotary motion into linear displacement. The guide slide 25 is a metal block with a sliding hole matched with the guide slide rod 231 in shape, and can be specifically realized by adopting a copper-based alloy material, and the contact surface of the inner wall of the guide slide 25 and the guide slide rod 231 forms a guide pair with a low friction coefficient. The thread sliding seat 24 is a metal block internally provided with an internal thread matched with the thread screw 232, and can be specifically realized by adopting a detachable nut structure, and the thread tooth and the screw lead angle of the thread screw 232 form a self-locking characteristic.
Specifically, when the driving rod 23 rotates, a sliding pair is formed between the guide slide rod 231 and the guide slide seat 25, so that the lateral displacement or inclination of the transverse clamping bottom plate 26 during the movement process is restricted, and the straightness of the movement track is ensured. Simultaneously, the screw engagement between the screw rod 232 and the screw slide seat 24 converts the rotation motion of the driving rod 23 into linear displacement of the transverse clamping bottom plate 26, and the accurate control of the displacement is realized through the self-locking characteristic of screw transmission. 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 to avoid clamping stagnation, and the meshing transmission of the thread slide seat 24 and the thread screw 232 can control the displacement through the lead precision, so that the transverse clamping assembly 2 keeps stable movement in the clamping process under the cooperation of the two components.
In contrast to the prior art, conventional transverse clamping assemblies 2 typically employ a single screw drive or slide rod guide arrangement. The single screw rod drive can accurately control displacement, but friction resistance between the screw rod and the nut is easy to cause clamping stagnation, and the pure sliding rod structure can ensure movement stability, but lacks displacement control precision. According to the scheme, the driving rod 23 is divided into the guide sliding rod 231 and the threaded screw rod 232, and the complementary characteristics of the guide sliding rod 231 and the threaded screw rod 232 are utilized, so that offset interference is eliminated through the sliding pair, accurate displacement is realized through threaded transmission, and the problems of uneven distribution of clamping force and insufficient moving stability are solved.
Through the technical scheme, the clamping force is uniformly distributed in the transverse clamping process, and the positioning error of the metal piece caused by stress deflection is effectively restrained. Meanwhile, the linearity and displacement precision of the moving track of the horizontal clamping bottom plate 26 are ensured by the cooperative driving mechanism of the guide sliding rod 231 and the threaded screw rod 232, the vibration or clamping stagnation phenomenon caused by single driving mode is avoided, and the clamping reliability and the processing stability are remarkably improved.
The application further provides that the longitudinal clamping assembly 3 comprises a longitudinal support 31 fixedly arranged at the upper end of the transverse clamping bottom plate 26, a transverse moving cylinder 32 is fixedly arranged on the longitudinal support 31, the output end of the transverse moving cylinder 32 is fixedly connected with a longitudinal clamping sliding seat 33, a fixed vertical plate 34 is fixedly arranged in the middle of the longitudinal clamping sliding seat 33, a longitudinal clamping cylinder 35 is fixedly arranged 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 in sliding fit with the upper surface of the main body base 1, and a longitudinal clamping sliding groove 271 for avoiding the longitudinal clamping vertical plate 36 is arranged at the lower part of the transverse clamping vertical plate 27.
The longitudinal support 31 is a basic supporting structure for carrying the longitudinal clamping assembly 3, and may be specifically fixed on the transverse clamping base plate 26 by adopting a welding or bolting mode, and is used for providing a rigid mounting platform for the transverse moving cylinder 32. The traversing cylinder 32 is an actuating mechanism for driving the longitudinal clamping assembly 3 to move transversely, and can be specifically realized by a double-piston rod cylinder or a servo electric cylinder, and the longitudinal clamping sliding seat 33 is driven to move transversely by linear motion. The vertical clamping sliding seat 33 is a transition structure for connecting the transverse moving cylinder 32 and the fixed vertical plate 34, and specifically can be a sliding base with a linear guide rail, and a linear bearing is arranged in the sliding base to be matched with a guide rod, so that the moving track precision is ensured. The fixing upright plate 34 is a support plate body vertically installed on the vertical clamp sliding seat 33, and can be specifically formed by adopting a steel plate for installing the vertical clamp cylinder 35 and transmitting the clamping force. The vertical clamping plate 36 is a clamping plate body directly contacting with a metal piece, and the lower end of the vertical clamping plate body can be provided with anti-slip dents, and the stability of vertical clamping is enhanced by adopting a base plane as a sliding supporting reference plane through the design of sliding and attaching the upper surface of the main body base 1. The vertical clamping sliding groove 271 is a U-shaped groove formed in the lower portion of the horizontal clamping vertical plate 27, and the width of the groove is larger than the thickness of the vertical clamping vertical plate 36, so that a track avoiding space is provided for the horizontal movement of the vertical clamping assembly 3.
Specifically, when longitudinal clamping is required, the traverse cylinder 32 first drives the longitudinal clamping slide 33 to move laterally so that the longitudinal clamping riser 36 approaches the side of the metal piece. In this process, the vertical clamp slider 33 slides in the lateral direction, and the vertical clamp plate 36 is always attached to the upper surface of the main body base 1, so that the straightness of the movement track is ensured. After the vertical clamping cylinder 35 is started, the vertical clamping plate 36 is pushed to move along the longitudinal direction until contacting with the side wall of the metal piece and applying clamping force. The vertical clamping chute 271 at the lower part of the horizontal clamping vertical plate 27 provides a through avoidance space in the stage of the horizontal movement of the vertical clamping vertical plate 36, and prevents the horizontal clamping vertical plate 27 from mechanically interfering with the vertical clamping vertical plate 36. When the metal piece needs to be clamped in multiple directions, the transverse clamping assembly 2 is transversely fixed through the transverse clamping vertical plate 27, the longitudinal clamping assembly 3 and the longitudinal clamping cylinder 35 realize longitudinal clamping through the independently controlled transverse moving cylinder 32, and the movement tracks of the two groups of clamping mechanisms are separated in space through the longitudinal clamping sliding groove 271, so that structural conflict in compound movement is eliminated.
Compared with the prior art, the longitudinal clamping mechanism of the traditional thread processing equipment often adopts an integral frame structure, and the transverse clamping action and the longitudinal clamping action need to be synchronously and coordinately controlled, so that the clamping interference is easily caused by time sequence errors. The scheme is characterized in that the split driving design is adopted, the transverse clamping and the longitudinal clamping are separated into independent control units, and the longitudinal clamping sliding groove 271 is utilized to realize physical isolation of the movement track. The moving path of the longitudinal clamping plate in the prior art is generally limited by a transverse clamping structure, and the clamping sequence needs to be adjusted repeatedly, and the longitudinal clamping assembly 3 is provided with autonomous transverse positioning capability by matching the transverse moving cylinder 32 with the longitudinal clamping sliding groove 271, so that the position state of the transverse clamping mechanism is not needed.
Through the technical scheme, the problem of low clamping efficiency caused by structural interference in the longitudinal clamping process is effectively solved, and decoupling control of longitudinal and transverse clamping actions is realized through the layered driving mechanism. The matching design of the longitudinal clamping sliding seat 33 and the longitudinal clamping sliding groove 271 eliminates the movement conflict between clamping components, and the independent driving mode of the transverse moving air cylinder 32 and the longitudinal clamping air cylinder 35 enables the longitudinal clamping position to be flexibly adjusted so as to adapt to the clamping requirements of metal pieces with different sizes. The design of the vertical clamping plates 36, which are in sliding fit with the plane of the base, enhances the clamping stability and prevents positioning deviation caused by vibration in the clamping process. The structure shortens the adjustment time of the longitudinal clamping mechanism while ensuring the clamping precision, and is particularly suitable for multi-angle thread machining scenes in which machining stations need to be frequently replaced.
The application further provides that the rotating assembly 7 comprises a rotating motor 71 fixedly arranged at the upper end of the lifting slide plate 10 and a connecting spindle 72 rotatably arranged at the central position of the lower end of the lifting slide plate 10, the angle adjusting assembly 8 is fixedly arranged at the lower end of the connecting spindle 72, a driven gear 73 is fixedly arranged on the connecting spindle 72, the output end of the rotating motor 71 is fixedly connected with a driving spindle 74, and a driving gear 75 which is in meshed transmission connection with the driven gear 73 is fixedly arranged on the driving spindle 74.
The rotary motor 71 is a driving element for providing rotary power, and may be implemented by a servo motor or a stepping motor, and directly transmits torque to the driving spindle 74 through an output shaft.
The connecting spindle 72 is a rotating component for bearing the angle adjusting component 8, and can be realized by a hollow transmission shaft, the lower end of the connecting spindle is rigidly connected with the angle adjusting component 8, and the upper end of the connecting spindle is arranged at the lifting slide plate 10 through a bearing.
The driven gear 73 is a gear member for passively receiving a driving force, and may be implemented by a helical gear or a spur gear, and is fixed to the connecting spindle 72 by a key connection to form a synchronous rotation.
The drive spindle 74 is a rotation shaft for transmitting power actively, and may be realized by a stepped shaft structure, and both ends thereof are connected to the output end of the rotating motor 71 and the driving gear 75, respectively.
The driving gear 75 is a transmission component matched with the driven gear 73, and can be specifically realized by adopting an alloy steel gear with the modulus of 3-5, and the tooth surface is subjected to heat treatment to enhance the wear resistance.
Specifically, when the rotary motor 71 is energized, the drive spindle 74 generates a rotary motion, and the drive gear 75 rotates in synchronization with the drive spindle 74. The meshing transmission of the driving gear 75 and the driven gear 73 transmits power to the connecting spindle 72, and drives the angle adjusting assembly 8 fixed at the lower end of the connecting spindle 72 to integrally rotate around the axis. Bearing structures on lift slide 10 provide radial support for connecting spindle 72, ensuring no radial offset during rotation.
Compared with the prior art, the traditional thread processing device adopts belt transmission or worm and gear mechanism to drive angle adjustment, and has the problems of low transmission precision and easy slipping and step out. The scheme realizes power transmission through gear meshing transmission, has higher positioning accuracy and transmission efficiency, and the gearbox structure is closed and can effectively prevent that processing piece from invading. Compared with the prior art adopting a multi-stage speed reducer, the driving gear 75 and the driving main shaft 74 are integrally designed, so that the links of a transmission chain are reduced, and the maintenance cost is reduced.
Through the technical scheme, the accurate driving of the tapping knife 13 for multi-angle adjustment is realized, the stability of the rotation process of the angle adjusting component 8 is ensured through gear engagement, and the problem of insufficient thread machining precision caused by transmission errors of the traditional device is solved. The cooperation design of the lifting slide plate 10 and the connecting main shaft 72 realizes the integration of power transmission and supporting functions in a limited space, and is particularly suitable for complex workpiece processing scenes requiring frequent adjustment of the tapping angle.
Referring to fig. 7-9, the application further provides that the angle adjusting assembly 8 includes a connecting top plate 81, a fixed support 83 is fixedly connected to the lower end of the connecting top plate 81 through a connecting support 82, a movable support 84 is rotatably mounted on one side of the fixed support 83, arc racks 85 for driving the screw thread machining assembly 9 to adjust positions are respectively arranged on one sides of the fixed support 83 and the movable support 84, a cylinder support 87 is fixedly arranged on one side, close to the movable support 84, of the lower end of the connecting top plate 81, an adjusting cylinder 86 is rotatably mounted on the cylinder support 87, and an output end of the adjusting cylinder 86 is rotatably connected to the movable support 84 for driving the movable support 84 to rotate.
The movable support 84 is an arc-shaped structural component forming a revolute pair with the fixed support 83, and can be specifically realized in a hinged connection mode, and the included angle between the movable support 84 and the fixed support 83 is changed through rotation so as to form different machining angles. The fixing support 83 is an arc-shaped supporting member serving as a reference mounting surface, and can be fixed with the connecting strut 82 by welding or bolting, and is used for bearing the thread processing assembly 9 and providing a sliding reference. The arc-shaped rack 85 is a transmission part arranged along the arc-shaped track on the outer sides of the fixed support 83 and the movable support 84, and can be specifically formed by machining quenched steel materials, and the position adjustment is realized by meshing with a gear on the thread machining assembly 9. The adjusting cylinder 86 is a power element for outputting linear displacement, and can be specifically realized by a double-acting hydraulic cylinder or an electric push rod, and the movable support 84 is driven to rotate around a hinge point through the expansion and contraction of a piston rod.
Specifically, the connecting top plate 81 forms a rigid frame with the fixed support 83 by connecting the strut 82, the hinge axis of the fixed support 83 and the movable support 84 being perpendicular to the machining plane. When the adjustment cylinder 86 is driven, its output pushes the cradle 84 to rotate about the hinge axis, causing the trajectory of the curved rack 85 of the cradle 84 to change angularly with respect to the fixed cradle 83. The thread processing assembly 9 can continuously move along the composite arc track of the fixed support 83 and the movable support 84 through the engagement of the gear and the arc rack 85, so as to form a processing angle space covering the range of 0-90 degrees. During the angular adjustment, the connecting rail 842 of the cradle 84 is always in sliding engagement with the fixed rail 832 of the fixed mount 83, ensuring structural stability.
Compared with the prior art, the traditional thread processing equipment adopts the fixed cutter bracket, and the workpiece needs to be repeatedly disassembled and repositioned when threads with different angles are processed. The angle adjustment of the thread machining assembly 9 can be realized under the state of maintaining the clamping by the cooperative action of the movable support 84 and the adjusting cylinder 86.
Through the technical scheme, the three-dimensional space positioning capability of the thread machining tool is realized, and the tapping tool 13 can cover the machining position of any angle on the surface of a workpiece through the rotation adjustment of the movable support 84 and the arc track movement of the thread machining assembly 9 under the condition that the workpiece is not required to be disassembled. Specifically, when the circumferential threads of the tubular metal piece are machined, the movable support 84 is adjusted to be in a 180-degree unfolding state with the fixed support 83, the threaded machining assembly 9 finishes 360-degree circumferential feeding along the composite arc-shaped rack 85, and when the threaded holes of the plate-type metal piece are machined, the movable support 84 is adjusted to a specific inclination angle, and then the threaded machining assembly 9 finishes oblique feeding along the arc-shaped track of the corresponding angle. The structure effectively solves the problem of repeated clamping of workpieces caused by angle limitation of traditional equipment, and the multi-angle thread machining efficiency of a single workpiece can be improved by more than 3 times.
The application further provides that the fixed support 83 comprises 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 connecting groove 833 is arranged at one side of the fixed arc-shaped seat 831, and a connecting rotating shaft 834 for rotationally connecting the movable support 84 is fixedly arranged at the connecting groove 833.
The fixed arc seat 831 is a supporting structure with an arc extending surface, which can be realized by casting or machining metal parts, and the arc extending surface is matched with the movement track of the movable support 84 to form continuous support.
The fixed rail 832 is a guiding structure extending along the lower end of the fixed arc seat 831, and can be realized by adopting a dovetail rail or a T-shaped sliding rail, and can realize precise guiding through matching with a sliding component.
The connecting groove 833 is an installation recess disposed at a side of the fixed arc-shaped seat 831, and may be implemented by a rectangular groove or a U-shaped groove formed by milling, for accommodating an installation base of the connecting shaft 834.
The connecting shaft 834 is a cylindrical rotating member with journals at two ends, and can be specifically realized by adopting an interference fit bearing assembly, and the rotating connection of the movable support 84 is realized by shaft hole fit.
Specifically, the fixed arc mount 831 and fixed rail 832 form a stable arc-shaped guide support structure that prevents radial deflection by the mechanical stop action of the rail as the thread forming assembly 9 moves along its surface. The connecting groove 833 is formed at the side of the fixed arc-shaped seat 831 and is used for being embedded into the mounting base of the connecting rotating shaft 834 and realizing rigid connection through bolt fastening. The connecting sleeve 843 of the cradle 84 is fitted over the outer surface of the connecting shaft 834 to form a hinge structure rotatable about the shaft axis, the rotation angle of which is controlled by the stroke of the adjusting cylinder 86. The extending direction of the fixed rail 832 is consistent with the radian direction of the fixed arc-shaped seat 831, so that the thread processing assembly 9 is ensured not to be blocked when moving along a predetermined track.
Compared with the prior art, the conventional fixed support 83 adopts a linear guide rail or a fixed angle hinge, the arc track adjustment of the movable support 84 cannot be realized, and the hinge part is easy to generate a gap to cause positioning deviation. According to the scheme, the fixed arc-shaped base 831 and the fixed guide rail 832 are matched, so that the angle adjusting range is expanded, the radial clearance is eliminated through the shaft hole matching of the connecting rotating shaft 834, and the structural rigidity of rotating connection is improved.
Through the technical scheme, the problem of insufficient connection stability of the fixed support 83 and the movable support 84 is solved, stable movement of the thread machining assembly 9 in an extended angle range is realized, machining requirements of threaded holes with different inclination angles are met, and machining precision reduction caused by a connection gap is avoided.
The application further provides that the movable support 84 comprises a movable arc seat 841 with the same diameter as the fixed arc seat 831, a connecting guide rail 842 matched with the fixed guide rail 832 is fixedly arranged on the inner side of the movable arc seat 841, a connecting shaft sleeve 843 rotationally connected with the connecting rotating shaft 834 is fixedly arranged on one side of the movable arc seat 841, and a connecting support lug 844 rotationally connected with the output end of the adjusting cylinder 86 is fixedly arranged on the outer side of the movable arc seat 841.
The movable arc seat 841 is a semicircular supporting structure with the same curvature radius as the fixed arc seat 831, and can be realized by adopting a cast or numerical control machining formed metal member, and the track consistency in the angle adjusting process is ensured by keeping concentricity with the fixed arc seat 831.
The connecting rail 842 refers to a guiding protrusion disposed along the inner side of the movable arc seat 841, and may be implemented by a dovetail groove or a T-shaped groove structure, and the movable support 84 is axially positioned by forming a complementary sliding pair with the fixed rail 832.
The connecting sleeve 843 is a rotary connecting member with an inner hole, and may be specifically implemented by a sleeve structure with a self-lubricating bearing, and the rotational freedom of the movable support 84 is implemented by sleeving on the connecting rotating shaft 834.
The connection lugs 844 are lug-shaped connection parts with through holes, and can be realized by adopting welded or bolt-fixed steel plate pieces, and a revolute pair is formed by the pin shaft and the adjusting cylinder 86 to transmit thrust.
Specifically, the movable arc mount 841 and the fixed arc mount 831 are of the same diameter, and the concentric configuration of both maintains radial constraint of the clamping area as the adjustment cylinder 86 is driven to rotate about the connecting shaft 834. The connecting rail 842 and the fixed rail 832 form a sliding pair that limits radial displacement of the cradle 84 during angular adjustment, ensuring continuous engagement of the contact surfaces during pipe clamping. The rotational engagement of the coupling sleeve 843 with the coupling shaft 834 provides rotational freedom to allow the cradle 84 to be angularly adjusted about the axis of the fixed mount 83 in the range of 0-90 degrees. The connecting lugs 844 form rotatable force transmission nodes with the adjusting cylinder 86 through pin shafts, and the linear thrust of the cylinder is converted into the rotation moment of the movable support 84, so that mechanical transmission of angle adjustment is realized.
Compared with the prior art, the traditional clamping mechanism adopts an independent turntable structure, and an assembly gap exists between the movable part and the fixed part, so that radial offset is easy to generate when the pipe fitting is clamped. According to the scheme, through the matching design of the arc-shaped base with the same diameter and the complementary guide rail, the concentric positioning of the clamping surface is always maintained in the angle adjusting process, and the unstable clamping caused by the structural gap is eliminated. The axial constraint of the rail pair can enhance torsional stiffness of the cradle 84 and avoid vibration displacement during machining, as compared to a hinge structure employing a single shaft.
Through the technical scheme, the clamping stability problem during processing of the tubular metal part is effectively solved, and the clamping surface can be uniformly restrained in a surrounding manner under any angle through the concentric guiding structure of the movable support 84 and the fixed support 83. The adjustable angle range covers the circumferential processing requirement of the pipe fitting, and meanwhile, the combined constraint mechanism of the guide rail sliding pair and the rotating shaft rotating pair maintains the integral rigidity of the clamping mechanism while realizing the angle adjusting function.
Referring to fig. 3-10, the present application further proposes a thread processing assembly 9, which includes a guide rail connecting seat 91, a guide rail sliding groove 92 slidably matched with a fixed guide rail 832 and a connecting guide rail 842 is provided at an upper end of the guide rail connecting seat 91, a tapping cylinder 96 is fixedly provided at a lower end of the guide rail connecting seat 91, a tapping bracket 97 is fixedly connected to an output end of the tapping cylinder 96, a tapping motor 98 is fixedly installed on the tapping bracket 97, a knife mounting head 99 is fixedly installed on an output shaft of the tapping motor 98, the knife mounting head 99 is used for detachably mounting the tapping knife 13, a motor support 93 is fixedly connected to a side of the guide rail connecting seat 91 close to the arc rack 85, an adjusting motor 94 is fixedly installed on the motor support 93, an adjusting gear 95 in meshed transmission connection with the arc rack 85 is fixedly installed on an output shaft of the adjusting motor 94, and a position of the thread processing assembly 9 on the angle adjusting assembly 8 is adjusted through gear-rack transmission.
The guide rail sliding groove 92 is a groove structure arranged at the upper end of the guide rail connecting seat 91, and can be specifically realized by adopting a U-shaped groove or T-shaped groove structure matched with the cross section shapes of the fixed guide rail 832 and the connecting guide rail 842, so that the guide rail connecting seat 91 slides along the guide rail. The tapping cylinder 96 is a linear driving device fixed at the lower end of the guide rail connecting seat 91, and can be implemented by a double-acting hydraulic cylinder or a pneumatic cylinder, for controlling the longitudinal feeding movement of the tapping bracket 97. The adjusting gear 95 is a transmission component mounted on the output shaft of the adjusting motor 94, and can be specifically implemented by adopting an involute gear structure with matched modulus, and the rotation motion of the motor is converted into linear displacement of the guide rail connecting seat 91 by being meshed with the arc-shaped rack 85.
Specifically, when the thread machining position needs to be adjusted, the adjusting motor 94 drives the adjusting gear 95 to rotate, and the meshing transmission of the gear and the arc-shaped rack 85 drives the guide rail connecting seat 91 to slide to a set angle position along the fixed guide rail 832 and the connecting guide rail 842. The tapping cylinder 96 pushes the tapping bracket 97 to move downwards so that the tapping blade 13 contacts the surface of the workpiece, and at this time, the tapping motor 98 drives the blade mounting head 99 to rotate for thread machining. The knife mounting head 99 can quickly replace knives with different specifications through the quick-change interface, and the matching of the guide rail sliding groove 92 and the guide rail ensures the moving precision.
Compared with the prior art, the traditional device adopts manual knob to adjust the angle of the cutter, the shutdown operation is needed, the positioning precision is difficult to guarantee, the automatic angle adjustment is realized through the motor-driven gear rack transmission mechanism, the angle switching can be completed in the processing process, and the adjusting precision can reach +/-0.5 degrees. Compared with an adjusting mode of a linear module, the matching structure of the arc-shaped guide rail and the gear rack is more suitable for a circular motion track, and structural complexity caused by multi-axis linkage is avoided.
Through the technical scheme, the continuous angle adjustment of the thread machining assembly 9 on the arc-shaped track is realized, multi-angle thread machining can be completed without clamping the workpiece again, and the machining efficiency is effectively improved. The rigid connection design of the gear and rack transmission mechanism and the guide rail ensures the repeated positioning precision of position adjustment, and can meet the processing requirements of precise workpieces such as aviation parts, automobile parts and the like. The coordinated control of the tap cylinder 96 and motor maintains the tool in a non-operative state prior to contacting the workpiece, reducing tool wear during idle travel.
The application further provides that one side of the guide rail connecting seat 91, which is close to the arc-shaped rack 85, is fixedly connected with a motor support 93, an adjusting motor 94 is fixedly arranged on the motor support 93, an adjusting gear 95 which is in meshed transmission connection with the arc-shaped rack 85 is fixedly arranged on an output shaft of the adjusting motor 94, and the position of the thread machining assembly 9 on the angle adjusting assembly 8 is adjusted through gear-rack transmission.
The guide rail connecting seat 91 is a moving substrate for carrying the thread processing assembly 9, and can be cast by cast iron or aluminum alloy to form a sliding base structure, and the guide rail sliding groove 92 forms a sliding pair with the fixed guide rail 832 and the movable guide rail of the angle adjusting assembly 8, so as to realize the position adjusting function along the arc track. The motor support 93 is a supporting structure for fixing the adjusting potential, and specifically, the L-shaped steel plate can be fixed on the side surface of the guide rail connecting seat 91 by adopting a bolt connection mode, so as to provide a stable installation platform for the adjusting motor 94. The adjusting motor 94 is a power source for adjusting the driving position, and may specifically be a stepping motor or a servo motor, and directly drives the adjusting gear 95 to rotate through the output shaft. The adjusting gear 95 is a driving part which is meshed with the arc-shaped rack 85 for transmission, the arc-shaped rack 85 is a driven transmission part fixed on the angle adjusting component 8, and particularly an arc-shaped track structure which is made of the same material as the adjusting gear 95 can be adopted, and tooth-shaped parameters of the arc-shaped track structure are completely matched with the adjusting gear 95, so that transmission precision is ensured.
Specifically, when multi-angle threading is required, the adjusting motor 94 is started to drive the adjusting gear 95 on the output shaft to rotate, and the linear driving force generated by the gear-rack transmission drives the guide rail connecting seat 91 to move along the arc-shaped track formed by the fixed guide rail 832 and the movable guide rail because the adjusting gear 95 and the arc-shaped rack 85 fixedly mounted on the angle adjusting assembly 8 form a meshing relationship. The guide rail connecting seat 91 drives the entire thread processing assembly 9 to change position on the angle adjusting assembly 8 so that the tapping blade 13 reaches a predetermined processing angle. In the process, the pulse control of the stepping motor can realize millimeter-level position accuracy, and the closed-loop feedback system of the servo motor can correct position errors in real time. The adjusting mechanism allows the tapping cutter 13 to be positioned randomly within the range of 0-90 degrees of circular arc, and covers the multi-angle machining requirement of common tubular parts.
Compared with the prior art, the traditional thread processing device generally relies on manual adjustment of the position of a cutter, and has the defects of poor positioning accuracy and long time consumption. Some improved schemes adopting linear guide rails can realize position adjustment in the linear direction, but cannot meet the arc track movement required by curved-surface workpieces. According to the technical scheme, through the synergistic effect of the gear rack and the arc-shaped guide rail, the accurate control of a curved surface path is realized while the mechanical rigidity is maintained, and the technical bottleneck that the complex angle thread processing needs repeated clamping is solved.
Through the technical scheme, the automatic position adjustment of the tapping knife along the preset arc track is realized, and the processing angle of the knife in the circumferential direction of the tubular part can be accurately controlled. The structure effectively expands the application range of the processing device and can be compatible with the processing requirements of metal pipe fittings with different curvatures. The rigid meshing characteristic of the gear-rack transmission avoids the defect that the traditional belt transmission is easy to slip, and ensures the position stability under heavy cutting working conditions. The programming control mode of the regulating motor obviously improves the transformation efficiency of multi-variety small-batch production, and reduces the preparation time compared with manual regulation.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510780003.XA CN120347299A (en) | 2025-06-12 | 2025-06-12 | Thread machining device for machining metal piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510780003.XA CN120347299A (en) | 2025-06-12 | 2025-06-12 | Thread machining device for machining metal piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120347299A true CN120347299A (en) | 2025-07-22 |
Family
ID=96405675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510780003.XA Withdrawn CN120347299A (en) | 2025-06-12 | 2025-06-12 | Thread machining device for machining metal piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120347299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121111167A (en) * | 2025-11-14 | 2025-12-12 | 江苏金石机械集团有限公司 | A wear-resistant tool for oil wellheads |
-
2025
- 2025-06-12 CN CN202510780003.XA patent/CN120347299A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121111167A (en) * | 2025-11-14 | 2025-12-12 | 江苏金石机械集团有限公司 | A wear-resistant tool for oil wellheads |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110421359B (en) | Composite laser pipe cutting machine | |
| US6065378A (en) | Portable journal turning lathe | |
| CN120347299A (en) | Thread machining device for machining metal piece | |
| US6447220B1 (en) | Portable boring/facing machine | |
| KR101843687B1 (en) | Horizontal drill machine | |
| CN117817399B (en) | Adjustable fixture for machining hydrogen ball valve | |
| CN202461960U (en) | Gantry mobile drilling, boring and milling composite processing machine tool | |
| CN114406555A (en) | Welding robot and automatic welding system | |
| CN115255938B (en) | Drilling and tapping combined machine tool for machining large flange | |
| CN110227946A (en) | Six axis boring-milling machine tools | |
| CN114871478A (en) | Full-automatic multi-station finished product manufacturing machine tool and manufacturing method for continuous casting roller | |
| US4852435A (en) | Portable flange facer | |
| CN215942154U (en) | Positioning jig for machining | |
| US11167359B2 (en) | Portable machine tools, kits, and methods for machining annular and straight planar surfaces | |
| CN210524421U (en) | Composite laser pipe cutting machine | |
| CN110842304A (en) | Tapping device for precision screw production | |
| CN118682496A (en) | An intelligent control crankshaft manufacturing machine tool with detection function | |
| CN111313331B (en) | Large-scale electric smelting pipe fitting wiring machine of rotary cutter formula | |
| CN120773126B (en) | A cutting and edge-grinding device for carbon fiber composite parts | |
| CN223028487U (en) | Automatic inward turning equipment for processing of shield tunneling machine thrust cylinder | |
| CN223629993U (en) | A chuck opening and closing adjustment device | |
| CN215035295U (en) | Preheating device for steel pipe machining | |
| CN116900360B (en) | Radial porous drilling assembly of pipe parts and device using same | |
| CN116728129B (en) | A low-stress automatic clamping system and clamping method for thin-walled parts | |
| CN117226399B (en) | Railway vehicle head traction sleeper slow deformation-resistant welding tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20250722 |
|
| WW01 | Invention patent application withdrawn after publication |