CN114871825A - Adjusting device of eccentric sleeve type spiral hole making equipment - Google Patents
Adjusting device of eccentric sleeve type spiral hole making equipment Download PDFInfo
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- CN114871825A CN114871825A CN202210703386.7A CN202210703386A CN114871825A CN 114871825 A CN114871825 A CN 114871825A CN 202210703386 A CN202210703386 A CN 202210703386A CN 114871825 A CN114871825 A CN 114871825A
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- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
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- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/28—Electric drives
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Abstract
The invention discloses an adjusting device of eccentric sleeve type spiral hole making equipment, which comprises an anti-rotation claw disk module, a contact type end surface electromagnetic friction disk module, an eccentric pusher dog sleeve module and a feeding module. The contact type end face electromagnetic friction disc module is located in the middle of the equipment, the eccentric pusher dog sleeve module and the anti-rotation claw disc module are located at the front end and the tail end of the equipment respectively, the anti-rotation claw disc module comprises an anti-rotation part and a power supply part, the anti-rotation part can be clamped with the contact type end face electromagnetic friction disc module to prevent the contact type end face electromagnetic friction disc module from rotating along with the stepped outer eccentric sleeve, the power supply part is used for enabling the electromagnetic driver to be powered on, and the feeding module is used for controlling the electromagnetic driver to be powered on or powered off. The invention realizes the eccentric and inclined adjustment of the axis of the cutter relative to the axis of the manufactured hole by controlling the separation and synchronous rotation between the inner eccentric sleeve and the stepped outer eccentric sleeve of the front pusher dog.
Description
Technical Field
The invention belongs to the field of material processing, relates to a hole making technology, and particularly relates to an adjusting device of eccentric sleeve type spiral hole making equipment.
Background
The Carbon Fiber (CFRP)/titanium alloy laminated material has excellent physical and mechanical properties and is widely applied to the manufacturing industry of important parts such as airplane wings, fuselage structural parts and the like. In recent years, the proportion of carbon fiber/titanium alloy laminated materials in aircraft materials is gradually increased, and metal structural parts are replaced to be main structural part materials of the aircraft. As the structural member, a plurality of connecting holes are usually formed in the structural member, and the precision and the quality of the connecting holes of the structural member directly relate to the performance and the service life of the airplane. From the drilling performance of a Carbon Fiber (CFRP)/titanium alloy laminated material, the carbon fiber composite material is easy to have the defects of interlayer separation, hole in-out tearing and the like in a drilling process, and meanwhile, the temperature of a processing area is overhigh due to the characteristics of poor heat conductivity and high strength of the titanium alloy, so that the service life of a cutter is low; the large performance difference of the two materials limits the popularization and application of the Carbon Fiber (CFRP)/titanium alloy laminated material.
In recent years, two new hole making technologies have attracted extensive attention of scholars in the fields of carbon brazing and titanium alloy processing. The first method is spiral milling and hole making, namely milling layer by layer along a spiral track by a milling cutter, so that the chip removal condition is improved, the axial force during hole making is greatly reduced, and a good processing effect is achieved on Carbon Fiber (CFRP)/titanium alloy laminated material holes. The second type is that the inclination mills the system hole, through letting the cutter slope an angle promptly for there is an angle between pore wall and the cutter side sword, can effectively avoid in the similar spiral hole milling mode cutter side sword to revolve to the emergence that the effect causes the defect phenomenon that peels off at the hole entrance.
With the continuous development of manufacturing industry, the hole-making process and device are developing towards the direction of intellectualization and miniaturization. Although the presently disclosed spiral milling device has been a significant improvement over conventional machine tools and machining devices, the following problems still remain:
(1) during processing, the interlayer peeling of the hole wall and the burrs at the inlet and the outlet occur, so that the precision and the quality of the processed hole are poor;
(2) the device has larger volume, lower intelligent degree and the like.
Therefore, a more intelligent and compact processing device is needed to realize high-quality and high-efficiency hole-making processing of Carbon Fiber Reinforced Plastic (CFRP)/titanium alloy laminated materials.
Disclosure of Invention
The invention aims to provide an adjusting device of eccentric sleeve type spiral hole making equipment, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an adjusting device of eccentric sleeve type spiral hole making equipment, which comprises:
the eccentric pusher dog sleeve module comprises a sleeve module base, a stepped outer eccentric sleeve, a rear pusher dog inner eccentric sleeve, a front pusher dog inner eccentric sleeve, a rotating main shaft and a rotating motor, wherein the stepped outer eccentric sleeve is sleeved in the sleeve module base and is rotationally connected with the sleeve module base, and the rotating motor is arranged on the sleeve module base and is connected with the stepped outer eccentric sleeve; the rear shifting claw inner eccentric sleeve and the front shifting claw inner eccentric sleeve are sequentially sleeved in the stepped outer eccentric sleeve, the rotating main shaft is sequentially sleeved in the rear shifting claw inner eccentric sleeve and the front shifting claw inner eccentric sleeve in a penetrating manner, and spherical sliding bearings are arranged between the rotating main shaft and the rear shifting claw inner eccentric sleeve and between the rotating main shaft and the rear shifting claw inner eccentric sleeve; the inner hole central axes of the rear shifting claw inner eccentric sleeve, the front shifting claw inner eccentric sleeve and the step-shaped outer eccentric sleeve do not coincide with the self outline axis, a rear shifting claw is arranged on the end surface of the rear shifting claw inner eccentric sleeve close to the front shifting claw inner eccentric sleeve at intervals of 90 degrees at every circumference, a front shifting claw is arranged on the end surface of the front shifting claw inner eccentric sleeve close to the rear shifting claw inner eccentric sleeve at intervals of 180 degrees at every circumference, and when the front shifting claw inner eccentric sleeve rotates, the rear shifting claw can be shifted by the front shifting claw to drive the rear shifting claw inner eccentric sleeve to rotate;
the contact type end face electromagnetic friction disc module is arranged on one side of the eccentric pusher dog sleeve module and comprises an electromagnetic driver and a connecting part connected with the electromagnetic driver, when the electromagnetic driver is not electrified, the connecting part can axially press the front pusher dog inner eccentric sleeve under the action of an elastic part so as to lock the front pusher dog inner eccentric sleeve with the stepped outer eccentric sleeve, and when the electromagnetic driver is electrified, the connecting part can be far away from the front pusher dog inner eccentric sleeve under the magnetic attraction action of the electromagnetic driver so as to separate the front pusher dog inner eccentric sleeve from the stepped outer eccentric sleeve;
the anti-rotation claw disk module comprises an anti-rotation part and a power supply part, and the anti-rotation part can tightly clamp the contact type end surface electromagnetic friction disk module and prevent the anti-rotation claw disk module from rotating along with the stepped outer eccentric sleeve; the power supply component is used for being electrically connected with the electromagnetic driver when the anti-rotation component is tightly clamped with the contact type end face electromagnetic friction disc module so as to enable the electromagnetic driver to be electrified;
and the feeding module is used for driving the anti-rotation claw disc module and the contact type end face electromagnetic friction disc module to mutually approach or separate from each other so as to control the electromagnetic driver to be powered on or powered off.
Optionally, the electromagnetic driver is an annular electromagnetic driver; the contact type end surface electromagnetic friction disc module further comprises a magnetic drive hollow convex disc, an anti-rotation stepped friction disc and a hollow inner cylinder transmission disc, the magnetic drive hollow convex disc is positioned at one end, provided with the front shifting claw inner eccentric sleeve, of the stepped outer eccentric sleeve, the annular electromagnetic driver is tightly attached to the outer wall of the annular stepped groove of the end surface of the magnetic drive hollow convex disc, and a lead of the annular electromagnetic driver is led out through a through hole at the bottom end of the annular stepped groove and is connected to a copper electrode positioned on the end surface of one side of the magnetic drive hollow convex disc; the elastic piece is arranged in a gap between the annular stepped groove and the annular electromagnetic driver, the anti-rotation stepped friction disc is arranged in the magnetic drive hollow convex disc through a sliding key and pressed on the elastic piece and the annular electromagnetic driver, the hollow inner cylinder transmission disc extends into an inner hole of the magnetic drive hollow convex disc, and annular end faces at two ends of the hollow inner cylinder transmission disc are respectively clung to the magnetic drive hollow convex disc and one end, attached with the friction disc, of the anti-rotation stepped friction disc.
Optionally, the contact-type end surface electromagnetic friction disc module further includes a light-sensing angle detection element, a brass wear-reducing sleeve is sleeved outside the light-sensing angle detection element, the brass wear-reducing sleeve is installed in the through hole of the hollow inner cylinder transmission disc in an interference fit manner, and a cable of the light-sensing angle detection element is led out to the inner hole of the hollow inner cylinder transmission disc through the through hole; the photoelectric sensing interface of the light sensation angle detection element is vertically upward, and when the annular electromagnetic driver is electrified, the anti-rotation stepped friction disc moves in the direction far away from the hollow inner cylinder transmission disc along the axial direction under the magnetic attraction effect.
Optionally, the elastic member is a high-stiffness return spring.
Optionally, the feeding module is a dual-motor feeding module, and includes a fixed frame, a feeding execution motor, a feeding ball screw, an adjusting ball screw, a screw support seat, a guide slide rail, and a screw nut slide block; the feeding ball screw and the adjusting ball screw are respectively arranged on the fixed rack through the screw support seat in a supporting manner, the feeding ball screw and the adjusting ball screw are coaxially arranged, and one side of the feeding ball screw and one side of the adjusting ball screw are both provided with one guide slide rail in parallel; the feeding ball screw and the adjusting ball screw are respectively provided with the screw nut sliding block in a threaded manner, and the screw nut sliding block is in sliding fit with the guide sliding rail; the feeding ball screw and the adjusting ball screw are respectively connected with a feeding execution motor, and the anti-rotation claw disk module and the eccentric pusher dog sleeve module are respectively arranged on the two groups of screw nut sliding blocks.
Optionally, the axial length of the adjusting ball screw is greater than the axial length of the feeding ball screw; the sleeve module base is arranged on the screw nut sliding block on the adjusting ball screw, and the anti-rotating claw disk module is arranged on the screw nut sliding block on the feeding ball screw.
Optionally, the rotating electrical machine is a hollow dc servo motor, an inner ring of the hollow dc servo motor is fixed on the stepped outer eccentric sleeve, and an outer ring of the hollow dc servo motor is fixed on the inner wall of the sleeve module base.
Optionally, the eccentric pusher dog sleeve module further comprises an absolute type circular grating and a circular grating reading head, the absolute type circular grating and the hollow direct current servo motor are mounted at the same end of the stepped outer eccentric sleeve, the circular grating reading head is arranged on the hollow direct current servo motor, and the circular grating reading head is located above the absolute type circular grating.
Optionally, the anti-rotation claw disc module comprises a curved inward-extending anti-rotation positioning claw disc, a cross-shaped chute follow-up adjusting disc, a linear chute wire collecting disc, a square low-friction unilateral fixed sliding block and an adjusting disc positioning base; the curved inward-extending anti-rotation positioning claw disc, the cross-shaped sliding groove follow-up adjusting disc and the linear sliding groove line concentration disc are sequentially installed from left to right, and the linear sliding groove line concentration disc is installed on the adjusting disc positioning base; two non-through square grooves which are symmetrically distributed along the radial direction are formed in the right side of the curve type inward-extending anti-rotation positioning claw disc, and axial through holes are formed in the non-through square grooves; the square low-friction unilateral fixed sliding block is respectively installed in the two non-through square grooves through a threaded hole on the left side of the square low-friction unilateral fixed sliding block, the right side end face of the square low-friction unilateral fixed sliding block is tightly attached to the bottom end face of the non-through sliding groove on the left side end face of the cross sliding groove follow-up adjusting disc, and rollers on two sides of the square low-friction unilateral fixed sliding block are in rolling contact with the side walls of the non-through square grooves; the square low-friction unilateral fixed sliding blocks are respectively installed in two horizontal non-through square grooves of the cross sliding groove follow-up adjusting disc, the right side end face of each square low-friction unilateral fixed sliding block is tightly attached to the bottom end face of the horizontal non-through square groove on the left side end face of the linear sliding groove line concentration disc, and rollers on two sides of each square low-friction unilateral fixed sliding block are in rolling contact with the side wall of the non-through square groove on the left side end face of the linear sliding groove line concentration disc.
Optionally, the curved inward-extending anti-rotation positioning claw disc, the cross-shaped sliding groove follow-up adjusting disc and the linear sliding groove wire collecting disc are all disc structures, and have the same outer diameter; and the curve type inward-extending anti-rotation positioning claw disc and the cross sliding groove follow-up adjusting disc are coaxially provided with through inner holes.
Compared with the prior art, the invention has the following technical effects:
according to the adjusting device of the eccentric sleeve type spiral hole making equipment, the contact and separation matching of the contact type end surface electromagnetic friction disc module and the anti-rotation claw disc module is adopted to control the separation and synchronous rotation between the eccentric sleeve in the front shifting claw and the stepped outer eccentric sleeve, so that the eccentric and inclined adjustment of the axis of the cutter relative to the axis of the made hole is realized. The invention combines the advantages of low cutting force, low inertia vibration and low impact force with eccentric hole milling during hole milling at the inclined angle, combines the eccentric milling with the inclined angle milling machine, meets the processing requirements of inclined angle hole milling, eccentric hole milling, first eccentric and then inclined angle hole milling, first inclined angle and then eccentric hole milling and the like, solves the problems of easy layering and burr of carbon fiber, flash of titanium alloy and inconsistent hole-making precision caused by difficult matching of two different material processing parameters during hole making of the carbon fiber reinforced composite material (CFRP)/titanium alloy laminated material, and effectively improves the hole-making precision and the processing efficiency of the carbon fiber reinforced composite material (CFRP)/titanium alloy laminated material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an adjusting device of an eccentric sleeve type spiral hole making apparatus according to an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of an anti-rotation claw disk module according to an embodiment of the present invention;
fig. 3 is a front cross-sectional view of a contact-type end-face electromagnetic friction disk module according to an embodiment of the present invention.
FIG. 4 is a front cross-sectional view of an eccentric finger sleeve module according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a magnetic drive hollow convex disc according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a front cross-sectional view of an anti-rotation stepped friction disk according to an embodiment of the present invention;
FIG. 8 is a front cross-sectional view of a toroidal electromagnetic drive according to an embodiment of the present invention;
FIG. 9 is a front cross-sectional view of a hollow inner barrel drive disk as disclosed in an embodiment of the present invention.
Wherein the reference numerals are:
1. an anti-rotation claw disk module; 1-1, a curved inward-extending anti-rotation positioning claw disc; 1-2, a cross sliding chute follow-up adjusting disc; 1-3, a straight chute wire collecting disc; 1-4, square low-friction single-side fixed sliding blocks; 1-5, adjusting plate positioning base 1-5;
2. a contact end face electromagnetic friction disc module; 2-1, magnetically driving a hollow convex disc; 2-2, anti-rotation stepped friction disk; 2-3, a ring-shaped electromagnetic driver; 2-4, a hollow inner cylinder transmission disc; 2-5, detecting an original element by a light sensing angle; 2-6, high-rigidity return spring;
3. an eccentric pusher dog sleeve module; 3-1, a sleeve module base; 3-2, a stepped outer eccentric sleeve; 3-3, an eccentric sleeve is arranged in the rear pusher dog; 3-4, an eccentric sleeve inside the front pusher dog; 3-5, spherical sliding bearing; 3-6, absolute type circular grating; 3-7, a circular grating reading head; 3-8, rotating the main shaft; 3-9, single-row radial ball bearing; 3-10, hollow DC servo motor;
4. a dual motor feed module; 4-1, fixing the frame; 4-2, a feeding execution motor; 4-3, feeding a ball screw; 4-4, adjusting the ball screw; 4-5, a lead screw supporting seat; 4-6, and a screw nut slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an adjusting device of eccentric sleeve type spiral hole making equipment, which mainly solves the problems of poor hole machining precision and quality caused by hole wall interlayer peeling and inlet and outlet burrs during the machining of the conventional Carbon Fiber (CFRP)/titanium alloy laminated material.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1 to 9, the present embodiment provides an adjusting device for an eccentric sleeve type spiral hole making apparatus, and particularly provides a push type eccentric deflection angle processing adjusting device, which mainly includes an anti-rotation claw disk module 1, a contact end surface electromagnetic friction disk module 2, an eccentric pusher dog sleeve module 3, and a dual-motor feeding module 4. An eccentric pusher dog sleeve module 3 and an anti-rotation claw disk module 1 are sequentially arranged on the double-motor feeding module 4 from left to right, and a contact type end face electromagnetic friction disk module 2 is arranged at the tail part of the eccentric pusher dog sleeve module 3 and is positioned between the eccentric pusher dog sleeve module 3 and the anti-rotation claw disk module 1. In the embodiment, the contact type end face electromagnetic friction disc module 2 is positioned in the middle of the equipment, and the eccentric pusher dog sleeve module 3 and the anti-rotation claw disc module 1 are respectively positioned at the front end and the tail end of the equipment; the eccentric pusher dog sleeve module 3 and the anti-rotation claw disk module 1 are both arranged on the double-motor feeding module 4. Through the contact separation cooperation of the contact type end face electromagnetic friction disc module 2 and the anti-rotation claw disc module 1, the separation and synchronous rotation between the eccentric sleeve in the front pusher dog and the stepped outer eccentric sleeve are controlled, so that the eccentricity and inclination adjustment of the axis where the cutter is located relative to the axis of the manufactured hole is realized, and the cutter revolves around the axis of the manufactured hole under the driving of the eccentric pusher dog sleeve module. Compare in other spiral hole milling equipment adjusting device, this embodiment has advantages such as adjustment accuracy height, simple structure compactness, degree of automation height, moving part integrate high.
In the embodiment, as shown in fig. 2, the anti-rotation claw disk module 1 comprises a curved inward-extending anti-rotation positioning claw disk 1-1, a cross sliding chute follow-up adjusting disk 1-2, a straight sliding chute wire collecting disk 1-3, a square low-friction single-side fixed sliding block 1-4 and an adjusting disk positioning base 1-5; the curved type inward-extending anti-rotation positioning claw disc 1-1, the cross-shaped chute follow-up adjusting disc 1-2 and the linear chute wire collecting disc 1-3 are installed from left to right, two non-through square grooves which are symmetrically distributed along the radial direction are formed in the right side of the curved type inward-extending anti-rotation positioning claw disc 1-1, and axial through holes are formed in the non-through square grooves; the square low-friction unilateral fixed sliding blocks 1-4 are respectively installed in two non-through square grooves through left threaded holes, the right side end face of the square low-friction unilateral fixed sliding block 1-4 is tightly attached to the bottom end face of the non-through sliding groove on the left side end face of the cross sliding groove follow-up adjusting disc 1-2, and rollers on two sides of the square low-friction unilateral fixed sliding block 1-4 are in rolling contact with the side walls of the non-through square grooves; a square low-friction unilateral fixed sliding block 1-4 is respectively installed in two horizontal non-through square grooves on the right side of the cross sliding groove follow-up adjusting disc 1-2 through bolts, the right side end face of the square low-friction unilateral fixed sliding block 1-4 is tightly attached to the bottom end face of the horizontal non-through square groove on the left side end face of the linear sliding groove wire collecting disc 1-3, and rollers on two sides of the square low-friction unilateral fixed sliding block 1-4 are in rolling contact with the side walls of the non-through square grooves; the curve type inward-extending anti-rotation positioning claw disc 1-1, the straight chute follow-up adjusting disc 1-2 and the straight chute wire-collecting disc 1-3 are all of disc structures and have the same outer diameter, through inner holes are formed in the curve type inward-extending anti-rotation positioning claw disc 1-1 and the cross chute follow-up adjusting disc 1-2, and the axes of the through inner holes are overlapped with the outer contour circle centers of the curve type inward-extending anti-rotation positioning claw disc 1-1 and the cross chute follow-up adjusting disc 1-2.
In this embodiment, as shown in fig. 3, the contact-type end surface electromagnetic friction disk module 2 mainly includes a magnetic drive hollow convex disk 2-1, an anti-rotation stepped friction disk 2-2, an annular electromagnetic driver 2-3, a hollow inner cylinder transmission disk 2-4, a light sensing angle detection element 2-5, and a high-stiffness return spring 2-6; the annular electromagnetic driver 2-3 is tightly attached to the outer wall of the annular stepped groove on the end face of the magnetic drive hollow convex disc 2-1, and a lead of the annular electromagnetic driver 2-3 is led out through a through hole at the bottom end of the stepped groove and is connected to a square copper electrode on the end face of the right side of the magnetic drive hollow convex disc 2-1; the high-rigidity reset spring 2-6 is arranged in a gap between the annular stepped groove on the end face of the magnetic drive hollow convex disc 2-1 and the annular electromagnetic driver 2-3, the anti-rotation stepped friction disc 2-2 is arranged in the magnetic drive hollow convex disc 2-1 through a sliding key and pressed on the high-rigidity reset spring 2-6 and the annular electromagnetic driver 2-3, the hollow inner cylinder transmission disc 2-4 extends into an inner hole of the magnetic drive hollow convex disc 2-1 from the left side, and the annular end face of the hollow inner cylinder transmission disc 2-4 is tightly attached to the end face of the magnetic drive hollow convex disc 2-1 on the left side and one end of the anti-rotation stepped friction disc 2-2 attached with the friction disc. The annular electromagnetic driver 2-3 and the high-rigidity return spring 2-6 are both arranged in the magnetic drive hollow convex disc 2-1, and the anti-rotation stepped friction disc 2-2 can be arranged on the left side of the annular electromagnetic driver 2-3 through a sliding key; the light sensing angle detection element 2-5 is arranged in the hollow inner cylinder transmission disc 2-4, and the magnetic drive hollow convex disc 2-1 and the hollow inner cylinder transmission disc 2-4 are respectively arranged on the stepped outer eccentric sleeve 3-2 and the front pusher dog inner eccentric sleeve 3-4. When the annular electromagnetic driver 2-3 is electrified, the anti-rotation stepped friction disc 2-2 moves rightwards along the axial direction under the action of magnetic force and is separated from the hollow inner cylinder transmission disc.
Furthermore, in the embodiment, a through hole is formed in the hollow inner cylinder transmission disc 2-4, a blind hole with the depth being one fourth of the thickness of the hollow inner cylinder transmission disc 2-4 is formed in the position, corresponding to the curved inward-extending anti-rotation positioning pawl disc 1-1, of the right end face, a conical guide section is arranged at the inlet of the blind hole, a through hole is formed in the right end face of the hollow inner cylinder transmission disc 2-4 in the axial direction, and a brass wear-reducing sleeve is installed in the through hole in an interference fit manner; the photoelectric sensing receiving end of the light sensing angle detection element 2-5 is vertically upwards glued and fixed in the brass antifriction sleeve, the light sensing angle detection element 2-5 is of a normally closed type, and when the photoelectric sensing receiving end detects the shading block, the light sensing angle detection element 2-5 can output a characteristic current signal. The cables of the light sensation angle detection elements 2-5 are led out to the inner holes of the hollow inner cylinder transmission discs 2-4 through the left sides of the through holes.
Further, in this embodiment, the anti-rotation stepped friction disc 2-2 is a stepped hollow disc, the right side is a cylindrical boss with a through hole in the middle, sliding keys are uniformly distributed at an interval of 45 degrees along the hole wall of the through hole, a laminated friction disc is arranged on the left end face, the laminated friction disc is formed by stacking asbestos fiber friction discs, powder metallurgy friction discs and carbon fiber friction discs in sequence and is installed on the left end face of the anti-rotation stepped friction disc 2-2 by using epoxy resin, the right side of the anti-rotation stepped friction disc 2-2 is always in contact with the left free end of the high-rigidity return spring 2-6, when the annular electromagnetic driver 2-3 is not powered, the high-rigidity return spring 2-6 is used as an elastic element to press the anti-rotation stepped friction disc 2-2 against the hollow inner cylinder transmission disc 2-4, and the anti-rotation stepped friction disc 2-2 and the hollow inner cylinder transmission disc 2-4 are enabled to synchronously rotate through the laminated friction disc and the sliding keys And (6) moving.
Further, in the embodiment, the magnetic drive hollow convex disc 2-1 is a circular disc, a through hole is formed in the center of the circular disc, and a step cylindrical groove which is concentric, wide at the top and narrow at the bottom and does not penetrate through is formed outside the through hole; the right side end face of the magnetic drive hollow convex disc 2-1 is provided with a copper electrode, the electrode is connected with an annular electromagnetic driver 2-3, the annular electromagnetic driver 1-3 can be powered through the copper electrode, shading blocks are arranged on the right side end face of the magnetic drive hollow convex disc 2-1 close to the inner hole wall, the shading blocks are uniformly distributed along the inner hole wall at intervals of 60 degrees, the annular electromagnetic driver 2-3 is a circular copper winding, iron cores are arranged on the circular copper winding at intervals of 30 degrees along the circumference, each iron core is tightly wound with a copper wire in a clockwise spiral mode along the axial direction, after the annular electromagnetic driver 2-3 is powered, magnetic force enables the anti-rotation stepped friction disc 2-2 to be sucked back, and the anti-rotation stepped friction disc 2-2 is disconnected with the hollow inner cylinder transmission disc 2-4.
In the embodiment, as shown in fig. 4, the eccentric pusher dog sleeve module 3 mainly comprises a sleeve module base 3-1, a stepped outer eccentric sleeve 3-2, a rear pusher dog inner eccentric sleeve 3-3, a front pusher dog inner eccentric sleeve 3-4, a spherical sliding bearing 3-5, an absolute type circular grating 3-6, a circular grating reading head 3-7, a rotating main shaft 3-8, a single-row radial ball bearing 3-9, a hollow direct current servo motor 3-10 and a bearing dust-proof end cover; the rear pusher dog inner eccentric sleeve 3-3 and the front pusher dog inner eccentric sleeve 3-4 are respectively and sequentially arranged in the stepped outer eccentric sleeve 3-2, wherein the left end face of the rear pusher dog inner eccentric sleeve 3-3 is flush with the left end face of the stepped outer eccentric sleeve; the right end face of the front pusher dog inner eccentric sleeve 3-4 is flush with the tail end face of the stepped outer eccentric sleeve 3-2; the hollow inner cylinder transmission disc 2-4 is fixedly connected with an eccentric sleeve 3-4 in the front pusher dog through a bolt; the number of the spherical sliding bearings 3-5 is 2, and the spherical sliding bearings are respectively arranged in the eccentric sleeves 3-3 in the rear pusher dog and the eccentric sleeves 3-4 in the front pusher dog and are abutted against the hole shoulders of the inner holes of the two eccentric sleeves; the central axes of inner holes of the rear pusher dog inner eccentric sleeve 3-3, the front pusher dog inner eccentric sleeve 3-4 and the stepped outer eccentric sleeve 3-2 are not coincident with the axes of the outer contours of the inner holes; 4 rear shifting claws which are uniformly distributed along the circumference of the small-diameter stepped hole at intervals of 90 degrees are arranged on the end surface of the right side of the eccentric sleeve 3-3 in each rear shifting claw, and each rear shifting claw is a square shifting claw; correspondingly, front shifting claws which are oppositely arranged along through holes at the end face at 180 degrees are arranged on the left end face of the eccentric sleeve 3-4 in the front shifting claw; when the front shifting claw inner eccentric sleeve 3-4 rotates anticlockwise, the front shifting claw arranged on the left end face can immediately drive the rear shifting claw inner eccentric sleeve 3-3 to rotate together, and when the front shifting claw inner eccentric sleeve 3-4 rotates clockwise, the shifting claw interval between the front shifting claw inner eccentric sleeve 3-4 and the rear shifting claw inner eccentric sleeve 3-3 is 180 degrees, at the moment, the front shifting claw inner eccentric sleeve 3-4 rotates 180 degrees independently until the front shifting claw contacts with the rear shifting claw of the rear shifting claw inner eccentric sleeve 3-3, and the rear shifting claw inner eccentric sleeve 3-3 is driven to rotate clockwise together. The rotary main shaft 3-8 is arranged in the inner rings of the front spherical sliding bearing and the rear spherical sliding bearing; two sets of single-row radial ball bearings 3-9 are provided, each set is two and is respectively arranged at two ends of the stepped outer eccentric sleeve 3-2, and an inner ring spacer bush is arranged between each set of bearings; the inner ring of the hollow DC servo motor 3-10 is fixed at the rear end of the stepped outer eccentric sleeve, and the outer ring frame body is fixed on the inner hole wall of the sleeve module base by gluing; the absolute type circular grating 3-6 is arranged on a step surface at the rear end of the step-shaped outer eccentric sleeve 3-2 close to the hollow direct current servo motor 3-10, and the circular grating reading head 3-7 is arranged on the end surface of the right side of the hollow direct current servo motor 3-10 and is positioned right above the absolute type circular grating 3-6 during installation; the bearing dustproof end cover is arranged on the left end face of the sleeve module base 3-1 through a threaded hole of the outer ring; the magnetic drive hollow convex disc 2-1 is arranged at the tail part of the stepped outer eccentric sleeve 3-2.
In this embodiment, as shown in fig. 1, the dual-motor feeding module 4 mainly includes a fixed frame 4-1, a feeding actuator motor 4-2, a feeding ball screw 4-3, an adjusting ball screw 4-4, a screw support seat 4-5, and a screw nut slider 4-6. The anti-rotation claw disk module 1 and the eccentric pusher dog sleeve module 3 are respectively fixed on two groups of screw nut sliders 4-6 through bolts, wherein the screw nut slider 4-6 where the eccentric pusher dog sleeve module 3 is located is installed on an adjusting ball screw 4-4 with a longer front end, the adjusting ball screw 4-4 passes through a plurality of screw support seats 4-5 and is connected with an output shaft of a feeding execution motor 4-2 through a coupler, the screw nut slider 4-6 where the anti-rotation claw disk module 1 is located is installed on a feeding ball screw 4-3 with a shorter rear end, and the feeding ball screw 4-3 passes through the plurality of screw support seats 4-5 and is connected with an output shaft of another feeding execution motor 4-2 through a coupler; the two feeding execution motors 4-2 are respectively arranged in the middle and the tail of the fixed frame 4-1 through threaded holes at the rear ends.
In this embodiment, the use method of the adjusting device of the eccentric sleeve type spiral hole making equipment can be performed according to the following steps:
(1) starting up for power supply, driving the step-shaped outer eccentric sleeve 3-2 and the magnetic drive hollow convex disc 2-1 to rotate clockwise by the hollow direct current servo motor 3-10 until the light sensation angle detection element 2-5 sends out a low-frequency electric pulse signal, powering off the brake by the hollow direct current servo motor 3-10, and resetting the eccentric pusher dog sleeve module 3;
(2) selecting a hole making mode according to the process requirement: the inclination angle is spirally milled to prepare a hole or eccentrically and spirally milled to prepare a hole;
(3) inputting hole making parameters according to process requirements: the revolution speed of the cutter, the rotating speed of the high-speed electric spindle, the feeding speed of the device, the number of holes, the aperture, the hole depth and the like;
(4) the hollow direct current servo motor 3-10 is rotated by power, if the processing mode is eccentric spiral milling, the hollow direct current servo motor 3-10 drives the step-shaped outer eccentric sleeve 3-2 to rotate clockwise to adjust the eccentricity, and if the processing mode is inclination spiral milling, the hollow direct current servo motor 3-10 rotates anticlockwise to adjust the eccentricity value;
(5) the double-motor feeding module 4 drives the anti-rotation claw disc module 1 to move right and is disconnected with the contact type end surface electromagnetic friction disc module 2, and the hollow direct current servo motors 3-10 and the rotating main shafts 3-8 are electrically rotated to a set value according to input parameters;
(6) the double-motor feeding module 4 drives the eccentric pusher dog sleeve module 3 and the contact type end face electromagnetic friction disc module 2 to move and feed according to a set value;
(7) the double-motor feeding module 4 pushes the eccentric pusher dog sleeve module 3 and the contact type end face electromagnetic friction disc module 2 to return to the original point; and determining whether the hole making quantity reaches a set value, if not, continuing to process, and if so, waiting for instructions for standby of the hollow direct current servo motor 3-10 and the rotary main shaft 3-8.
The working principle of the adjusting device of the eccentric sleeve type spiral hole making equipment of the embodiment is specifically described below with reference to the use method of the adjusting device of the eccentric sleeve type spiral hole making equipment:
the anti-rotation claw disk module 1 is driven by a feeding execution motor 4-2 connected with a feeding ball screw 4-3 to move close to a contact type end face electromagnetic friction disk module 2, an electrode on the anti-rotation claw disk module 1 is contacted with an electrode on the end face of the right side of a magnetic drive hollow convex disk 2-1, an annular electromagnetic driver 2-3 is electrified, the anti-rotation stepped friction disk 2-2 moves to the right side along the axial direction under the action of magnetic force, the magnetic drive hollow convex disk 2-1 is disconnected with a hollow inner cylinder transmission disk 2-4, at the moment, a hollow direct current servo motor 3-10 at the rear end of the eccentric claw sleeve module 3 drives a stepped outer eccentric sleeve 3-2 to rotate clockwise, at the moment, due to the magnetic force of the annular electromagnetic driver 2-3 and the limiting effect of the anti-rotation claw disk module 1 at the rear end, the eccentric sleeve 3-4 in the front claw can not rotate along with the stepped outer eccentric sleeve 3-2, at the moment, the stepped outer eccentric sleeve 3-2 is disconnected with the rear pusher dog inner eccentric sleeve 3-3, so that the clockwise rotation of the stepped outer eccentric sleeve 3-2 causes the rear pusher dog inner eccentric sleeve 3-3, the front pusher dog inner eccentric sleeve 3-4 and a rotating main shaft 3-8 (the rotating main shaft 3-8 is a high-speed electric main shaft) arranged inside the rear pusher dog inner eccentric sleeve and the front pusher dog inner eccentric sleeve to radially shift, thereby completing the eccentric adjustment of the device; because certain friction exists between the inner eccentric sleeve and the outer eccentric sleeve, the inner eccentric sleeve 3-3 of the rear shifting claw tends to rotate clockwise along with the stepped outer eccentric sleeve 3-2, but the anti-rotation claw disc module 1 can limit the axial rotation freedom degree of the inner eccentric sleeve 3-3 of the rear shifting claw, and the accuracy of eccentric adjustment is guaranteed. After the eccentricity adjustment is completed, the double-motor feeding module 4 drives the anti-rotation claw disc module 1 to move towards the right side, an electrode on the anti-rotation claw disc module 1 is far away from the annular electromagnetic driver 2-3, the annular electromagnetic driver 2-3 loses electricity, the high-rigidity reset spring 2-6 ejects the hollow inner cylinder transmission disc 2-4 and contacts with the inclination angle eccentric inner cylinder transmission disc when the magnetic force disappears, the rear pusher dog inner eccentric sleeve 3-3 can synchronously rotate with the step-shaped outer eccentric sleeve 3-2 under the action of friction force, and the revolution motion of the rotary main shaft 3-8 is completed.
Therefore, compared with other similar eccentric processing devices, the anti-rotation claw disk module 1 enables the hollow direct-current servo motor 3-10 to drive the stepped outer eccentric sleeve 3-2 to rotate, the front pusher dog inner eccentric sleeve 3-4 can rotate in a vertical plane along with the inner eccentric hole of the stepped outer eccentric sleeve 3-2 without rotating, and adjustment errors caused by friction between the inner eccentric sleeve and the outer eccentric sleeve in the eccentric inclination angle adjustment process are eliminated. Meanwhile, the anti-rotation claw disc module 1 adopts a plug-and-play design idea, moves forwards during adjustment, positions and connects the fan-shaped positioning block and the processing part through a cone head transition anti-swing pin on the curve-shaped inward-extending anti-rotation positioning claw disc 1-1, moves backwards after adjustment, and is disconnected, so that the energy consumption of a rotary power source of the device is reduced.
In the embodiment, the anti-rotation stepped friction disc 2-2, the annular electromagnetic driver 2-3 and the high-rigidity return spring 2-6 are used for locking and unlocking the stepped outer eccentric sleeve 3-2 and the front pusher dog inner eccentric sleeve 3-4, other power sources are not needed to be added for controlling the rotation of the inner eccentric sleeve, the cost is reduced, and meanwhile, the size and the weight of the device are reduced. In addition, due to the reduction of the number of power sources, the complexity of a control system of the device is reduced, the reliability of the device is improved, and the structure of the device is more compact.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. An adjusting device of an eccentric sleeve type spiral hole making equipment is characterized by comprising:
the eccentric pusher dog sleeve module comprises a sleeve module base, a stepped outer eccentric sleeve, a rear pusher dog inner eccentric sleeve, a front pusher dog inner eccentric sleeve, a rotating main shaft and a rotating motor, wherein the stepped outer eccentric sleeve is sleeved in the sleeve module base and is rotationally connected with the sleeve module base, and the rotating motor is arranged on the sleeve module base and is connected with the stepped outer eccentric sleeve; the rear shifting claw inner eccentric sleeve and the front shifting claw inner eccentric sleeve are sequentially sleeved in the stepped outer eccentric sleeve, the rotating main shaft is sequentially sleeved in the rear shifting claw inner eccentric sleeve and the front shifting claw inner eccentric sleeve in a penetrating manner, and spherical sliding bearings are arranged between the rotating main shaft and the rear shifting claw inner eccentric sleeve and between the rotating main shaft and the rear shifting claw inner eccentric sleeve; the inner hole central axis of each of the rear shifting claw inner eccentric sleeve, the front shifting claw inner eccentric sleeve and the step-shaped outer eccentric sleeve is not coincident with the self outer contour axis, a rear shifting claw is arranged on the end surface, close to the front shifting claw inner eccentric sleeve, of the rear shifting claw inner eccentric sleeve at an interval of 90 degrees on each circumference, a front shifting claw is arranged on the end surface, close to the rear shifting claw inner eccentric sleeve, of the front shifting claw inner eccentric sleeve at an interval of 180 degrees on each circumference, and when the front shifting claw inner eccentric sleeve rotates, the rear shifting claw can be shifted by the front shifting claw to drive the rear shifting claw inner eccentric sleeve to rotate;
the contact type end face electromagnetic friction disc module is arranged on one side of the eccentric pusher dog sleeve module and comprises an electromagnetic driver and a connecting part connected with the electromagnetic driver, when the electromagnetic driver is not electrified, the connecting part can axially press the front pusher dog inner eccentric sleeve under the action of an elastic part so as to lock the front pusher dog inner eccentric sleeve with the stepped outer eccentric sleeve, and when the electromagnetic driver is electrified, the connecting part can be far away from the front pusher dog inner eccentric sleeve under the magnetic attraction action of the electromagnetic driver so as to separate the front pusher dog inner eccentric sleeve from the stepped outer eccentric sleeve;
the anti-rotation claw disk module comprises an anti-rotation part and a power supply part, and the anti-rotation part can tightly clamp the contact type end surface electromagnetic friction disk module and prevent the anti-rotation claw disk module from rotating along with the stepped outer eccentric sleeve; the power supply component is used for being electrically connected with the electromagnetic driver when the anti-rotation component is tightly clamped with the contact type end face electromagnetic friction disc module so as to enable the electromagnetic driver to be electrified;
and the feeding module is used for driving the anti-rotation claw disc module and the contact type end face electromagnetic friction disc module to mutually approach or separate from each other so as to control the electromagnetic driver to be powered on or powered off.
2. The adjustment device for an eccentric sleeve type helical drilling apparatus according to claim 1, wherein the electromagnetic driver is an annular electromagnetic driver; the contact type end surface electromagnetic friction disc module further comprises a magnetic drive hollow convex disc, an anti-rotation stepped friction disc and a hollow inner cylinder transmission disc, the magnetic drive hollow convex disc is positioned at one end, provided with the front shifting claw inner eccentric sleeve, of the stepped outer eccentric sleeve, the annular electromagnetic driver is tightly attached to the outer wall of the annular stepped groove of the end surface of the magnetic drive hollow convex disc, and a lead of the annular electromagnetic driver is led out through a through hole at the bottom end of the annular stepped groove and is connected to a copper electrode positioned on the end surface of one side of the magnetic drive hollow convex disc; the elastic piece is arranged in a gap between the annular stepped groove and the annular electromagnetic driver, the anti-rotation stepped friction disc is arranged in the magnetic drive hollow convex disc through a sliding key and pressed on the elastic piece and the annular electromagnetic driver, the hollow inner cylinder transmission disc extends into an inner hole of the magnetic drive hollow convex disc, and annular end faces at two ends of the hollow inner cylinder transmission disc are respectively clung to the magnetic drive hollow convex disc and one end, attached with the friction disc, of the anti-rotation stepped friction disc.
3. The adjusting device for the eccentric sleeve type spiral hole making equipment according to claim 2, wherein the contact type end surface electromagnetic friction disc module further comprises a light-sensitive angle detection element, a brass wear-reducing sleeve is sleeved outside the light-sensitive angle detection element, the brass wear-reducing sleeve is installed in a through hole of the hollow inner cylinder transmission disc in an interference fit mode, and a cable of the light-sensitive angle detection element is led out into an inner hole of the hollow inner cylinder transmission disc through the through hole; the photoelectric sensing interface of the light sensation angle detection element is vertically upward, and when the annular electromagnetic driver is electrified, the anti-rotation stepped friction disc moves in the direction far away from the hollow inner cylinder transmission disc along the axial direction under the magnetic attraction effect.
4. The adjusting apparatus of an eccentric sleeve type helical drilling machine according to claim 2 or 3, wherein the elastic member is a high rate return spring.
5. The adjusting apparatus of an eccentric sleeve type helical drilling apparatus according to claim 3, wherein the feeding module is a dual motor feeding module comprising a fixed frame, a feeding actuator motor, a feeding ball screw, an adjusting ball screw, a screw support base, a guide rail, and a screw nut slider; the feeding ball screw and the adjusting ball screw are respectively arranged on the fixed rack through the screw support seat in a supporting manner, the feeding ball screw and the adjusting ball screw are coaxially arranged, and one side of the feeding ball screw and one side of the adjusting ball screw are both provided with one guide slide rail in parallel; the feeding ball screw and the adjusting ball screw are respectively provided with the screw nut sliding block in a threaded manner, and the screw nut sliding block is in sliding fit with the guide sliding rail; the feeding ball screw and the adjusting ball screw are respectively connected with a feeding execution motor, and the anti-rotation claw disk module and the eccentric pusher dog sleeve module are respectively arranged on the two groups of screw nut sliding blocks.
6. The adjusting apparatus of an eccentric sleeve type helical drilling apparatus according to claim 5, wherein an axial length of the adjusting ball screw is longer than an axial length of the feeding ball screw; the sleeve module base is arranged on the screw nut sliding block on the adjusting ball screw, and the anti-rotating claw disk module is arranged on the screw nut sliding block on the feeding ball screw.
7. The adjusting apparatus for an eccentric sleeve type helical drilling machine according to any one of claims 1 to 3, wherein the rotating electrical machine is a hollow DC servo motor, an inner ring of the hollow DC servo motor is fixed to the stepped outer eccentric sleeve, and an outer ring thereof is fixed to an inner wall of the sleeve module base.
8. The adjustment device for eccentric sleeve type helical drilling equipment according to claim 7, wherein said eccentric finger sleeve module further comprises an absolute circular grating and a circular grating reading head, said absolute circular grating and said hollow DC servo motor are mounted on the same end of said stepped outer eccentric sleeve, said circular grating reading head is mounted on said hollow DC servo motor, and said circular grating reading head is located above said absolute circular grating.
9. The adjusting device of eccentric sleeve type spiral hole making equipment according to any one of claims 1 to 3, wherein the anti-rotation claw disk module comprises a curved inward-extending anti-rotation positioning claw disk, a cross chute follow-up adjusting disk, a straight chute wire collecting disk, a square low-friction unilateral fixed sliding block and an adjusting disk positioning base; the curved inward-extending anti-rotation positioning claw disc, the cross-shaped sliding groove follow-up adjusting disc and the linear sliding groove line concentration disc are sequentially installed from left to right, and the linear sliding groove line concentration disc is installed on the adjusting disc positioning base; two non-through square grooves which are symmetrically distributed along the radial direction are formed in the right side of the curve type inward-extending anti-rotation positioning claw disc, and axial through holes are formed in the non-through square grooves; the square low-friction unilateral fixed sliding block is respectively installed in the two non-through square grooves through a threaded hole on the left side of the square low-friction unilateral fixed sliding block, the right side end face of the square low-friction unilateral fixed sliding block is tightly attached to the bottom end face of the non-through sliding groove on the left side end face of the cross sliding groove follow-up adjusting disc, and rollers on two sides of the square low-friction unilateral fixed sliding block are in rolling contact with the side walls of the non-through square grooves; the square low-friction unilateral fixed sliding blocks are respectively installed in two horizontal non-through square grooves of the cross sliding groove follow-up adjusting disc, the right side end face of each square low-friction unilateral fixed sliding block is tightly attached to the bottom end face of the horizontal non-through square groove on the left side end face of the linear sliding groove line concentration disc, and rollers on two sides of each square low-friction unilateral fixed sliding block are in rolling contact with the side wall of the non-through square groove on the left side end face of the linear sliding groove line concentration disc.
10. The adjusting device of an eccentric sleeve type helical hole making apparatus according to claim 9, wherein the curved inward-extending anti-rotation positioning pawl plate, the cross chute follow-up adjusting plate and the straight chute wire-concentration plate are all disc structures and have the same outer diameter; and the curve type inward-extending anti-rotation positioning claw disc and the cross sliding groove follow-up adjusting disc are coaxially provided with through inner holes.
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