Metal part thread machining device and machining method

Abstract

The invention belongs to the technical field of metal machining, and particularly relates to a metal part thread machining device and method. The machining device comprises a base; the stand column is fixedly arranged on one side of the base; a Z-axis sliding plate is arranged on the Z-axis sliding table; a headstock; the Y-axis sliding table is arranged on the base, and a Y-axis sliding plate is arranged on the Y-axis sliding table; the X-axis sliding table is arranged on the Y-axis sliding plate; the workbench is arranged on the X-axis sliding plate; the workpiece clamping seat is arranged on the workbench; according to the machining device, the workpiece is secondarily clamped and reinforced through the workpiece clamping seat, so that the workpiece is prevented from shifting and shaking.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metal processing, and particularly relates to a metal piece thread processing device and a processing method. BACKGROUND

[0002] The thread processing device is a machine tool for processing internal threads with a tap, and is the most widely used internal thread processing machine tool. The machine is suitable for most mechanical manufacturing, such as mold manufacturing, processing, mechanical equipment manufacturing, processing, tooling, gauges, and mechanical part manufacturing. However, the thread processing device needs to fasten the workpiece before tapping processing, and needs to fasten once for each workpiece, thereby affecting the processing efficiency. SUMMARY

[0003] The present application aims to provide a thread processing device and a processing method with simple structure, convenient workpiece clamping, processing, and improved metal piece processing efficiency.

[0004] Therefore, the present application provides a metal piece thread processing device, which comprises: a base; a stand fixedly arranged on one side of the base; a Z-axis sliding table arranged on the stand, which is provided with a Z-axis sliding plate and a Z-axis motor for driving the Z-axis sliding plate to move in the Z direction on the sliding table; a spindle box arranged on the Z-axis sliding plate, which is provided with a spindle motor, a transmission mechanism, and a clamping device for clamping a tool; a Y-axis sliding table arranged on the base and located on one side of the stand, which is provided with a Y-axis sliding plate and a Y-axis motor for driving the Y-axis sliding plate to move in the Y direction on the sliding table; an X-axis sliding table arranged on the Y-axis sliding plate, which is provided with an X-axis sliding plate and an X-axis motor for driving the X-axis sliding plate to move in the X direction on the sliding table; a workbench arranged on the X-axis sliding plate; a workpiece clamping seat arranged on the workbench; The workpiece clamping seat comprises: a mounting seat fixedly arranged on the workbench; a plurality of clamping sliding grooves evenly distributed on the mounting seat and arranged to extend outward from the central part of the mounting seat; a plurality of clamping seats slidably arranged in the clamping sliding grooves; a sliding guide assembly arranged in the mounting seat and driving the clamping seats to slide in the clamping sliding grooves.

[0005] In the above technical solution, further, the clamping seat comprises: a lower transmission block cooperating with the sliding guide assembly to drive the clamping seat to move in the clamping sliding groove; A middle sliding block is arranged on the upper part of the lower transmission block and is in sliding fit with the clamping sliding groove; An upper clamping assembly is arranged on the middle sliding block; The upper clamping assembly is adjustably arranged on the middle sliding block.

[0006] In the above technical solution, further, the upper clamping assembly comprises: A lower support plate is fixedly connected with the middle sliding block; A positioning block is arranged on the lower support plate; A clamping jaw is rotatably arranged on the positioning block; A driving member is arranged on the lower support plate and located at one side of the positioning block, and can drive the clamping jaw to rotate; A retaining spring is arranged at the lower part of the side of the clamping jaw close to the driving member, so as to ensure that the clamping jaw is in the initial position; A support assembly is arranged at the lower part of the side of the clamping jaw away from the driving member, and supports the clamping jaw; The driving member comprises: A driving cylinder is fixedly arranged on the lower support plate; A driving head is freely rotatably arranged on the driving end of the driving cylinder, and the clamping jaw is pressed by the driving head, so as to drive the clamping jaw to rotate.

[0007] In the above technical solution, further, the clamping jaw comprises: A jaw body in a thick sheet structure; A stress part in an arc shape is formed on the upper part of the jaw body; A clamping part in an arc shape is formed on the side of the middle part of the jaw body close to the mounting seat; A connecting part is formed on one side of the lower part of the jaw body and connected with one end of the support assembly; The jaw body is rotated by pressing the stress part by the driving member, so as to drive the clamping part to swing and press down to the middle part of the mounting seat.

[0008] In the above technical solution, further, the support assembly comprises: A lower support mechanism is fixed on the lower support plate; An upper hinge block is connected with the clamping jaw; A support rod is arranged between the lower support mechanism and the upper hinge block; The support rod is compressed when stressed and resets when not stressed.

[0009] In the above technical solution, further, the lower support mechanism comprises: A spherical seat has a spherical groove formed therein; A spherical block is arranged on the spherical groove and can swing on the spherical groove; A stop ring is arranged on the upper side of the spherical seat and coaxially arranged with the spherical seat. A reset spring is arranged between the spherical seat and the stop ring. The stop ring is fixedly connected with one end of the upper hinge block of the supporting rod, and a limiting side for limiting the reset spring is formed on the stop ring and the spherical seat.

[0010] In the above technical solution, further, the supporting rod comprises: An outer sleeve is formed with a containing cavity in the inner part, and the bottom is fixedly connected with the spherical block; An outer rod body is inserted into the containing cavity and extends out of the outer sleeve; An inner reset element is arranged in the containing cavity and allows the inner rod body to reset when the inner rod body is pressed into the outer rod body; An inner rod part is inserted into the outer rod body, one end of which is connected with the upper hinge block, and the other end is arranged towards the inner reset element.

[0011] In the above technical solution, further, the inner reset element comprises: An inner positioning sleeve is arranged at the bottom of the containing cavity and is formed by two mutually symmetrical buckling shells; A first supporting spring is arranged at the upper part of the inner positioning sleeve, one end of which is abutted with the inner positioning sleeve, and the other end is abutted with the outer rod body; An inner swing seat is arranged at the middle part of the inner positioning sleeve, two sides of which are formed with positioning shafts, and the inner positioning sleeve is formed with positioning holes matched with the positioning shafts, so that the inner swing seat can swing in the inner positioning sleeve; A lower reset seat is arranged at the lower side of the inner positioning sleeve, and the lower side of the inner positioning sleeve is provided with a slot for the lower reset seat to be arranged and to slide, the two sides of the lower reset seat are formed with contact parts which are in contact with the inner swing seat, the upper part of the slot of the inner positioning sleeve is formed with a groove for the contact parts to slide, and the end part of the contact part is formed with a contact side which is abutted with the end face of the swing seat; A second supporting spring is arranged between the lower reset seat and the bottom of the containing cavity; A first magnetic part is arranged at the upper end of the inner swing seat; A second magnetic part is arranged at one end of the inner rod part which is towards the inner reset element, and is arranged opposite to the first magnetic part; The opposite magnetic poles of the first magnetic part and the second magnetic part repel each other.

[0012] In the above technical solution, further, the sliding guide assembly comprises: A lower supporting table is arranged at the bottom of the arrangement seat; An upper driving disc is freely rotatably arranged on the lower supporting table, and a transmission tooth is arranged on the outer side of the upper driving disc; A guide groove is in an arc shape, the number of which is equal to that of the clamping seats, and the guide groove is matched with the lower end of the clamping seat; A driving wheel drives the upper driving disc to rotate; The driver is connected with the driving wheel.

[0013] The present application has the following advantages: 1. The processing device clamps the workpiece again through the workpiece clamping seat, so as to prevent the workpiece from shaking. 2. The support rod is arranged to reset the claw, release the workpiece from the workpiece clamping seat, and facilitate the disassembly of the workpiece after processing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a partial structural schematic diagram of the present application; Figure 3 is a structural schematic diagram of the workpiece clamping seat in the present application; Figure 4 is a partial structural schematic diagram of the workpiece clamping seat in the present application; Figure 5 is a partial structural schematic diagram of the sliding guide assembly in the present application; Figure 6 is a structural schematic diagram of the clamping seat in the present application; Figure 7 is a cross-sectional schematic diagram of the clamping seat in the present application; Figure 8 is a structural schematic diagram of the support assembly in the present application; Figure 9 is a cross-sectional schematic diagram of one part of the support assembly in the present application; Figure 10 is a cross-sectional schematic diagram of another part of the support assembly in the present application; Figure 11 is a structural schematic diagram of the inner positioning sleeve in the present application; Figure 12 is a structural schematic diagram of the cooperation between the lower reset seat and the inner swing seat in the present application; The marks in the figure are as follows: 1-main shaft box, 2-Y axis sliding table, 3-X axis sliding table, 4-arrangement seat, 4a-clamping sliding groove, 5-lower transmission block, 6-middle sliding block, 7-lower support plate, 8-positioning block, 9-claw, 9a-claw body, 9b-stress part, 9c-clamping part, 9d-connection part, 10-driving part, 11-retaining spring, 12-upper hinged block, 13-spherical seat, 14-spherical block, 15-retaining ring, 16-reset spring, 17-outer sleeve, 18-outer rod body, 19-inner rod part, 20-inner positioning sleeve, 21-first support spring, 22-lower reset seat, 23-second support spring, 24-first magnetic part, 25-second magnetic part, 26-lower support table, 27-upper driving disc, 28-guide groove, 29-inner swing seat. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art are within the scope of protection of the present application.

[0016] Embodiment 1 The embodiment provides a metal piece thread processing device, which comprises: a base; a stand fixedly arranged on one side of the base; a Z-axis sliding table arranged on the stand, wherein the Z-axis sliding table is provided with a Z-axis sliding plate and a Z-axis motor for driving the Z-axis sliding plate to move in a Z direction on the sliding table; a spindle box arranged on the Z-axis sliding plate, wherein the spindle box is provided with a spindle motor, a transmission mechanism and a clamping device for clamping a tool; a Y-axis sliding table arranged on the base and located on one side of the stand, wherein the Y-axis sliding table is provided with a Y-axis sliding plate and a Y-axis motor for driving the Y-axis sliding plate to move in a Y direction on the sliding table; an X-axis sliding table arranged on the Y-axis sliding plate, wherein the X-axis sliding table is provided with an X-axis sliding plate and an X-axis motor for driving the X-axis sliding plate to move in an X direction on the sliding table; a workbench arranged on the X-axis sliding plate; a workpiece clamping seat arranged on the workbench; the workpiece clamping seat comprises: a placing seat fixedly arranged on the workbench; a plurality of clamping sliding grooves evenly distributed on the placing seat and arranged to extend outward from the middle part of the placing seat; a plurality of clamping seats slidably arranged in the clamping sliding grooves; a sliding guide assembly arranged in the placing seat and used for driving the clamping seats to slide in the clamping sliding grooves.

[0017] In the embodiment, the column is arranged to support the Z-axis sliding table and the spindle box; the Z-axis sliding table is used to drive the spindle box to move up and down; the Y-axis sliding table and the X-axis sliding table are used to drive the workbench to move in two directions, so that the metal piece on the workbench is processed at different positions through the change of the position of the workbench. The workpiece clamping seat on the workbench is used to clamp the workpiece, so that the workpiece does not displace or jump during the thread processing of the workpiece, thereby ensuring the coaxiality and precision of the processed thread. The setting table is used to set the workpiece, and then a plurality of clamping seats are used to fix and clamp the periphery of the workpiece to prevent displacement of the workpiece. The number of clamping seats is four or eight; if the number is four, the clamping seats can be distributed in the middle of the four edges of the rectangular contour; if the number is eight, four clamping seats are arranged in the middle of the four edges of the rectangular contour, and the other four clamping seats are arranged on the diagonal lines of the rectangular contour. The clamping seat is driven by the sliding guide and is limited by the clamping sliding groove, so as to realize the operation of approaching or moving away from the middle of the setting seat, so as to realize the automatic clamping or loosening of the workpiece and improve the convenience of workpiece loading and unloading.

[0018] The machining device can also include a tool magazine, which can switch tools to process the internal cylindrical surface of the threaded hole, and then use a tapping tool to process the thread, so that the thread forming is completed through the fixation of the workpiece once, thereby improving the overall machining efficiency of the device.

[0019] Embodiment 2: The embodiment provides a metal piece thread machining device, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0020] The clamping seat comprises: The lower transmission block cooperates with the sliding guide assembly to drive the clamping seat to displace on the clamping sliding groove; The middle sliding block is arranged on the upper part of the lower transmission block and is in sliding cooperation with the clamping sliding groove; The upper clamping assembly is arranged on the middle sliding block; The upper clamping assembly is adjustably arranged on the middle sliding block.

[0021] In the embodiment, the lower transmission block is fixedly arranged below the middle sliding block and is used for cooperating with the sliding guide assembly; the middle sliding block cooperates with the clamping sliding groove; the middle sliding block is used for arranging the upper clamping assembly; the installation position of the upper clamping assembly in each clamping seat on the middle sliding block is adjusted to adjust the size of the metal piece that can be clamped by the workpiece clamping seat; so that one workpiece clamping seat can meet the clamping of workpieces of different sizes; and the application range of the thread machining device is improved. The upper clamping assembly is detachably and adjustably fixed on the middle sliding block through bolt adjusting grooves and the like; and the upper clamping assembly can be provided in multiple models; through cooperation of the upper clamping assemblies of multiple models, metal parts of irregular shapes or irregular heights can be fixed; and the types of the metal pieces that can be machined by the device are further improved. In order to prevent metal scraps from being arranged in the workbench through the clamping sliding groove, a retractable roller shutter can be arranged on the inner wall of the clamping sliding groove and the middle sliding block, and is used for shielding and sealing the clamping sliding groove.

[0022] Embodiment 3 The embodiment provides a metal piece thread machining device, in addition to the technical solutions of the above-mentioned embodiments, and has the following technical features.

[0023] The upper clamping assembly comprises: The lower support plate is fixedly connected with the middle sliding block; The positioning block is arranged on the lower support plate; The clamping jaw is rotatably arranged on the positioning block; The driving member is arranged on the lower support plate and located on one side of the positioning block, and can drive the clamping jaw to rotate; The retaining spring is arranged on the lower part of the side of the clamping jaw close to the driving member, and ensures that the clamping jaw is in the initial position; The support assembly is arranged on the lower part of the side of the clamping jaw away from the driving member, and supports the clamping jaw; The driving member comprises: The driving cylinder is fixedly arranged on the lower support plate; The driving head is freely rotatably arranged on the driving end of the driving cylinder, and the clamping jaw is pressed by the driving head, so that the clamping jaw is rotated.

[0024] In the embodiment, the lower support plate can be provided with an adjusting groove, and the position of the lower support plate on the middle sliding block is adjusted by cooperation of a bolt and the adjusting groove; the positioning block is provided for the claw device; the claw is used for clamping the workpiece; the driving member drives the claw to swing on the positioning block, so that the workpiece is clamped; after the driving member is reset, the claw is reset under the action of the support assembly and the retaining spring, and the clamped workpiece is released. In order to facilitate the installation of the retaining spring and prevent it from falling off, a stand is arranged on the claw and the lower support plate, and the end of the retaining spring is fixed on the stand and then fixed by a positioning pin. The driving cylinder can be a pneumatic cylinder or a hydraulic cylinder. The driving cylinder drives the driving head to extrude towards the claw direction, so as to make the claw clamp the workpiece. The driving head is rotatably arranged on the driving end of the driving cylinder, which can reduce the friction between the driving head and the claw, and ensure the smooth operation of the claw.

[0025] Embodiment 4: The embodiment provides a metal piece thread processing device, in addition to comprising the technical scheme of the above-mentioned embodiment, further has the following technical features.

[0026] The claw comprises: The claw body is in a thick sheet structure; The stress part is in an arc shape and is formed on the upper part of the claw body; The clamping part is in an arc shape and is formed on one side of the claw body close to the middle part of the mounting seat; The connecting part is formed on one side of the lower part of the claw body and is connected with one end of the support assembly; The stress part is extruded by the driving member, so that the claw body rotates, and the clamping part swings and presses down to the middle part of the mounting seat.

[0027] In the embodiment, the middle part of the claw body is provided with a shaft hole, and the claw body is rotationally limited on the positioning block through the shaft hole and the positioning pin; the stress part is in an arc structure extending upward from the direction of the driving member to the direction of the mounting seat, and when the driving head extrudes the stress part, the claw body rotates downward along the shaft hole, so as to clamp the workpiece; the clamping part is in an arc structure with a linear distance farther away from the shaft hole from bottom to top, and the workpiece is better fixed through the clamping part in the process of pressing down the claw, and because the upper side of the clamping part is farther away from the shaft hole, the clamping part can not only limit the workpiece from the side wall of the workpiece, but also press the workpiece downward from the upper end of the workpiece, so as to prevent the workpiece from jumping and shifting, thereby ensuring the effect of clamping and fixing the workpiece and ensuring the accuracy of workpiece processing. The connecting part can facilitate the connection of the support assembly; the stand for fixing the retaining spring can be arranged on the other side of the lower part of the claw body.

[0028] Embodiment 5: The embodiment provides a metal piece thread processing device, in addition to comprising the technical scheme of the above-mentioned embodiment, further has the following technical features.

[0029] The support assembly comprises: A lower support mechanism fixed on the lower support plate; An upper hinge block connected with the claw; A support rod arranged between the lower support mechanism and the upper hinge block; Wherein the support rod is compressed when under stress and resets when not under stress.

[0030] In the embodiment, the lower support mechanism facilitates the fixation of the support assembly with the lower support plate, and the upper hinge block facilitates the connection of the support assembly with the connecting part of the claw body; the support rod plays a good supporting role between the lower support mechanism and the upper hinge block, and can be compressed when the driving member drives the claw to rotate downward, and the support rod resets and extends to lift the claw to reset the claw to release the workpiece clamped by the claw. The upper hinge block and the claw body are rotationally connected through a hinge structure, that is, the upper hinge block moves downward to compress the support rod when the claw rotates downward.

[0031] Embodiment 6: The embodiment provides a metal piece thread processing device, which comprises the technical solutions of the above embodiments and has the following technical features.

[0032] The lower support mechanism comprises: A spherical seat having a spherical groove formed therein; A spherical block arranged on the spherical groove and capable of swinging on the spherical groove; A retaining ring located on the upper side of the spherical seat and coaxially arranged with the spherical seat; A reset spring located between the spherical seat and the retaining ring; Wherein the retaining ring is fixedly connected with one end of the support rod connected with the upper hinge block, and a limiting guide for the reset spring is formed on the retaining ring and the spherical seat.

[0033] In the embodiment, the spherical seat is used for connecting the spherical block, and the end of the support rod connected with the spherical block enables the support rod to swing during the swinging of the claw, thereby ensuring that the support rod can play a good supporting role; the reset spring is arranged to store energy during the compression or swinging of the support rod, thereby accumulating elastic force for the reset of the support rod. The retaining ring can be threadedly connected with the support rod, and the retaining ring facilitates the connection of the reset spring with one end of the support rod. In order to facilitate the machining of the spherical groove, the spherical seat can be connected by two shell bodies that can be buckled and fixed; and the spherical block and the bottom of the support rod are fixedly connected through a fixing pin or the like fastener.

[0034] Embodiment 7: The embodiment provides a metal piece thread processing device, which comprises the technical solutions of the above embodiments and has the following technical features.

[0035] The support rod comprises: an outer sleeve, which is internally formed with a receiving cavity and has a bottom fixedly connected with the spherical block; an outer rod body, which is inserted into the receiving cavity and extends out of the outer sleeve; an inner reset element, which is arranged in the receiving cavity and allows the inner rod body to reset when the inner rod body is pressed into the outer rod body; an inner rod portion, which is inserted into the outer rod body, has one end connected with the upper hinge block, and has the other end arranged towards the inner reset element.

[0036] In the embodiment, the bottom of the outer sleeve is provided with a detachable plug; the spherical block, the outer sleeve and the plug are fixed by a positioning pin; the outer rod body is arranged on the outer sleeve and is in sliding fit with the outer sleeve; in order to prevent the outer rod body from being separated from the outer sleeve, the bottom of the outer rod body is provided with a limiting block, and the inner wall of the outer sleeve is provided with a limiting groove for the limiting block to slide; the arrangement of the inner reset element can provide a reset force for the outer rod body after the outer rod body slides into the outer sleeve; and the arrangement of the inner rod body can facilitate the connection between the support rod and the upper hinge block. The stop ring is threadedly connected to the upper end of the outer rod body.

[0037] Embodiment 8: The embodiment provides a metal piece thread processing device, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0038] The inner reset element comprises: an inner positioning sleeve, which is located at the bottom of the receiving cavity and is formed by two mutually symmetrical and buckled housings; a first supporting spring, which is arranged at the upper portion of the inner positioning sleeve, has one end abutting against the inner positioning sleeve, and has the other end abutting against the outer rod body; an inner swing seat, which is arranged at the middle portion of the inner positioning sleeve, has two positioning shafts formed at the two sides thereof, and has a positioning hole formed in the inner positioning sleeve and matched with the positioning shafts, so that the inner swing seat can swing in the inner positioning sleeve through the positioning shafts; a lower reset seat, which is arranged at the lower side of the inner positioning sleeve, has a slot formed at the lower side of the inner positioning sleeve and allowing the lower reset seat to be arranged and slide, has a contact portion formed at the two sides of the lower reset seat and upwardly contacting with the inner swing seat, has a groove portion formed at the upper portion of the slot of the inner positioning sleeve and allowing the contact portion to slide, and has a contact edge formed at the end portion of the contact portion and abutting against the end face of the swing seat; a second supporting spring, which is arranged between the lower reset seat and the bottom of the receiving cavity; a first magnetic member, which is arranged at the upper end of the inner swing seat; a second magnetic member, which is arranged at one end of the inner rod portion and faces the inner reset element, and is arranged opposite to the first magnetic member; The opposite faces of the first magnetic member and the second magnetic member repel each other.

[0039] In the embodiment, the first supporting spring provides a reset force for the outer rod body when the outer rod body is drawn into the outer sleeve, and the second supporting spring provides a reset force for the lower reset seat when the lower reset seat moves toward the bottom of the outer sleeve. In the process of sliding of the outer rod body into the outer sleeve under force, the first supporting spring is compressed, the second magnetic member of the inner rod part is closer to the first magnetic member, and the inner swing seat swings and tilts along the positioning shaft under the repulsion between the second magnetic member and the first magnetic member. In the process of swinging of the inner swing seat, the contact with the contact part is extruded, the lower reset seat is driven to move toward the bottom of the outer sleeve, and the second supporting spring is compressed. Then, when the outer rod body is not under force, the second supporting spring and the first supporting spring are reset, the second supporting spring drives the lower reset seat to move upward, the inner swing seat is reset, the second magnetic member is opposite to the first magnetic member, the outer rod body is reset under the repulsion between the first magnetic member and the second magnetic member and the reset force of the first supporting spring, and the claw is loosened to release the workpiece.

[0040] Embodiment 9: The embodiment provides a metal piece thread processing device, in addition to the technical solutions of the above-mentioned embodiments, and has the following technical features.

[0041] The sliding guide assembly comprises: The lower support table is arranged at the bottom of the installation seat; The upper driving disc is rotatably arranged on the lower support table, and a transmission tooth is arranged on the outer edge of the upper driving disc; The guide groove is arc-shaped, and the number of the guide groove is equal to that of the clamping seat, and the guide groove is matched with the lower transmission block at the lower end of the clamping seat; The driving wheel drives the upper driving disc to rotate; The driver is connected with the driving wheel at the driving end.

[0042] In the embodiment, the installation seat is fixedly connected with the workbench through the lower support table, the guide groove on the upper driving disc is matched with the lower transmission block of the clamping seat, the lower transmission block at the lower end of the clamping seat is driven to move along the guide groove seat in an arc-shaped manner through the rotation of the upper driving disc, the sliding block on the upper part of the clamping seat is limited by the clamped sliding groove, so that the clamping seat moves along the clamping sliding groove in a straight reciprocating manner, and the clamping or loosening of the workpiece is realized in the process of reciprocating movement of the clamping seat. The driving wheel is arranged to drive the rotation of the upper driving disc, and the driver provides power for the driving wheel. The driver can be a rotary cylinder or a motor, and in order to prevent the upper clamping assembly from loosening, a limiting cylinder that can resist the rotation of the upper driving disc is arranged. The limiting cylinder is not driven when the driver is operated. The upper driving disc is rotatably arranged on the lower support table through bearings, clamps, shaft sleeves and other conventional mechanical structures.

[0043] Embodiment 10: The embodiment provides a machining method of a metal piece thread machining device.

[0044] Comprise: Step one, workpiece size determination, determining the length and width size of the workpiece; Step two, adjusting the initial position of each clamping seat according to the size of the workpiece; Step three, workpiece installation, the workpiece to be machined is prevented on the workpiece clamping seat; Step four, workpiece preliminary fixation, each clamping seat is driven by the sliding guide assembly to the middle part of the installation seat; Step five, workpiece reinforcement, the workpiece is secondarily reinforced through the driving of the clamping seat; Step six, workpiece machining, the workpiece is machined through the cooperation of the Z-axis sliding table, the spindle box, the Y-axis sliding table and the X-axis sliding table; Step seven, device reset, resetting the Z-axis sliding table, the Y-axis sliding table and the X-axis sliding table to the initial position, and resetting the state and position of each clamping seat; Step eight, workpiece disassembly, the workpiece is dismounted from the workpiece clamping seat; In order to facilitate the mounting and dismounting of the workpiece, the device can be provided with an automatic feeding and discharging manipulator.

[0045] In the embodiment, the size of the workpiece is determined first, so that the position of each clamping seat can be timely adjusted, and then through primary clamping, the metal piece can be secondarily reinforced, so that the displacement or jumping of the workpiece is prevented, and then the machining of the workpiece and the machining accuracy are facilitated; and through automatic clamping, the convenience of metal piece dismounting is improved, so that the machining efficiency is improved. A plurality of coordinate scales can be arranged on the installation seat, and the initial positions of the clamping seats are adjusted through coordinate comparison; or the bolts fixed between the lower support plate and the middle sliding block are loosened first, then the sliding guide pieces drive each clamping seat to the middle part of the installation seat, until the workpiece is abutted, then the bolts connecting the lower support plate and the middle sliding block are tightened, so that the adjustment of the initial positions of the clamping seats is completed. The embodiments of the application are described above in combination with the drawings, and the embodiments and the features in the embodiments in the application can be combined with each other without conflict, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, all of which belong to the protection of the application.

Claims

1. A metal piece threading device characterized by, Include: Base; Column, fixedly arranged on one side of the base; Z-axis sliding table, arranged on the column, with Z-axis sliding plate on it; Spindle box (1), arranged on the Z-axis sliding plate; Y-axis sliding table (2), with Y-axis sliding plate; X-axis sliding table (3), arranged on the Y-axis sliding plate; Workbench, arranged on the X-axis sliding plate; Workpiece clamping seat, arranged on the workbench; The workpiece clamping seat comprises: Arrangement seat (4), fixedly arranged on the workbench; A plurality of clamping sliding grooves (4a) are uniformly distributed on the arrangement seat (4) and are arranged outwardly from the middle part of the arrangement seat (4); A plurality of clamping seats are slidably arranged in the clamping sliding grooves (4a); The sliding guide assembly is arranged in the arrangement seat (4) and drives the clamping seat to slide in the clamping sliding groove (4a).

2. A metal piece threading device according to claim 1, wherein The clamping seat comprises: Lower transmission block (5) cooperates with the sliding guide assembly to drive the clamping seat to displace in the clamping sliding groove (4a); Middle sliding block (6), arranged on the upper part of the lower transmission block (5), and in sliding cooperation with the clamping sliding groove (4a); Upper clamping assembly, arranged on the middle sliding block (6); The upper clamping assembly is adjustably arranged on the middle sliding block (6).

3. A metal piece threading device according to claim 2, wherein The upper clamping assembly comprises: Lower support plate (7), fixedly connected with the middle sliding block (6); Positioning block (8), arranged on the upper and lower support plates (7); Claw (9), rotatably arranged on the positioning block (8); Driving member (10), arranged on the lower support plate (7) and located on one side of the positioning block (8), capable of driving the claw (9) to rotate; Retaining spring (11), arranged on the lower part of the side of the claw (9) away from the driving member (10); Supporting assembly, arranged on the lower part of the side of the claw (9) away from the driving member (10) and supporting the claw (9).

4. A metal piece threading device according to claim 3, wherein The claw (9) comprises: Claw body (9a), in the form of a thick sheet structure; Force receiving portion (9b), in the form of an arc, formed on the upper part of the claw body (9a); Clamping portion (9c), in the form of an arc, formed on one side of the middle part of the claw body (9a) away from the arrangement seat (4); Connecting portion (9d), formed on one side of the lower part of the claw body (9a) and connected with one end of the supporting assembly; The claw body (9a) is rotated by the driving member (10) pressing the force receiving portion (9b), so as to make the clamping portion (9c) swing and press downward to the middle part of the arrangement seat (4).

5. A metal piece threading device according to claim 3, wherein The supporting assembly comprises: Lower support mechanism, fixed on the lower support plate (7); Upper hinge block (12), connected with the claw (9); Supporting rod, arranged between the lower support mechanism and the upper hinge block (12); The supporting rod is compressed under stress and returns to its original position when not stressed.

6. A metal piece threading device according to claim 5, wherein The lower support mechanism comprises: Spherical seat (13), with a spherical groove formed therein; Spherical block (14), arranged on the spherical groove and capable of swinging on the spherical groove; Retaining ring (15), located on the upper side of the spherical seat (13) and coaxially arranged with the spherical seat (13); Reset spring (16), abutting between the spherical seat (13) and the retaining ring (15); The stop ring (15) is fixedly connected with one end of the support rod connected with the upper hinge block (12), and the stop ring (15) and the spherical seat (13) are both formed with a limiting direction of a limiting reset spring (16).

7. A metal piece threading apparatus according to claim 6, wherein The support rod comprises: An outer sleeve (17) is formed with an accommodating cavity in the inner part, and the bottom is fixedly connected with the spherical block (14); An outer rod body (18) is inserted into the accommodating cavity and extends out of the outer sleeve (17); An inner reset element is arranged in the accommodating cavity and resets the inner rod body when the inner rod body is pressed into the outer rod body (18); An inner rod body (19) is inserted into the outer rod body (18), one end of which is connected with the upper hinge block (12), and the other end is arranged towards the inner reset element.

8. The metal piece threading device according to claim 2, wherein The sliding guide assembly comprises: A lower support table (26) is arranged at the bottom of the installation seat (4); An upper driving disc (27) is freely rotatably arranged on the lower support table (26), and a transmission gear is arranged on the outer edge of the upper driving disc (27); A guide groove (28) is in an arc shape, the number of the guide grooves (28) is equal to that of the clamping seats, and the guide grooves (28) are matched with the lower ends of the clamping seats; A driving wheel drives the upper driving disc (27) to rotate; A driver is connected with the driving wheel at the driving end.

9. A method of machining a metal piece with the apparatus according to any one of claims 2 to 8, characterized in that, The method comprises the following steps: Step one, determining the size of the workpiece, determining the length and width of the workpiece; Step two, adjusting the initial position of each clamping seat according to the size of the workpiece; Step three, workpiece installation, placing the workpiece to be processed on the workpiece clamping seat; Step four, workpiece preliminary fixation, driving each clamping seat to move towards the middle of the installation seat (4) through the sliding guide assembly; Step five, workpiece reinforcement, performing secondary reinforcement on the workpiece through the driving of the clamping seat; Step six, workpiece processing, processing the workpiece through the cooperation of the Z-axis sliding table, the spindle box (1), the Y-axis sliding table (2) and the X-axis sliding table (3); Step seven, device reset, resetting the Z-axis sliding table, the Y-axis sliding table (2) and the X-axis sliding table (3) to the initial position, and resetting the state and position of each clamping seat; Step eight, workpiece disassembly, disassembling the workpiece from the workpiece clamping seat.

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