CN114871825A - Adjusting device of eccentric sleeve type spiral hole making equipment - Google Patents

Abstract

The invention discloses an adjustment device of an eccentric sleeve type screw hole-making equipment, comprising an anti-rotation claw plate module, a contact-type end face electromagnetic friction plate module, an eccentric claw shifting sleeve module and a feeding module. The contact-type end face electromagnetic friction disk module is located in the middle of the equipment, the eccentric claw sleeve module and the anti-rotation claw disk module are located at the front and end of the equipment respectively. The end face electromagnetic friction disc module is used to prevent it from rotating with the stepped outer eccentric sleeve. The power supply component is used to electrify the electromagnetic drive, and the feed module is used to control the electrification or loss of the electromagnetic drive. By controlling the separation and synchronous rotation between the inner eccentric sleeve of the front shifting claw and the stepped outer eccentric sleeve, the invention realizes the eccentricity and inclination adjustment of the axis where the tool is located relative to the axis of the produced hole. Compared with the prior art, the invention has the advantages of It has the advantages of high adjustment accuracy, simple and compact structure, and high degree of automation.

Description

An adjusting device for eccentric sleeve type screw hole making equipment

technical field

The invention belongs to the field of material processing and relates to hole-making technology, in particular to an adjustment device of an eccentric sleeve type screw hole-making equipment.

Background technique

Carbon fiber (English abbreviation: CFRP)/titanium alloy laminate materials are widely used in the manufacturing of aircraft wings, fuselage structural parts and other important components due to their excellent physical and mechanical properties. In recent years, the proportion of carbon fiber/titanium alloy laminate materials in aircraft materials has gradually increased and replaced metal structural parts as the main structural material of aircraft. As a structural part, there are usually many connecting holes on it. The accuracy and quality of the connecting holes of the structural part are directly related to the performance and service life of the aircraft. From the hole-making performance of carbon fiber (CFRP)/titanium alloy laminates, carbon fiber composites are prone to defects such as interlayer separation and tearing at the entrance and exit of holes in the hole-making process. At the same time, titanium alloys have poor thermal conductivity but high strength. The characteristic of CFRP makes the temperature of the processing area too high, which leads to a lower tool life; the large performance difference between the two materials limits the promotion and application of carbon fiber (CFRP)/titanium alloy laminates.

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 is helical milling to make holes, that is, milling cutters along a helical trajectory layer by layer, which improves the chip removal conditions and greatly reduces the axial force during hole making. The hole has a very good processing effect. The second is to make holes by inclination milling, that is, by tilting the tool at an angle, so that there is an angle between the hole wall and the tool side edge, which can effectively avoid the spalling defect at the hole entrance caused by the rotation of the tool side edge in the helical milling method. phenomenon occurs.

With the continuous development of the manufacturing industry, the hole-making process and device are developing in the direction of intelligence and miniaturization. Although the currently disclosed helical milling device has been greatly improved compared with traditional machine tools and processing devices, the following problems still exist:

(1) The interlayer peeling of the hole wall and the burr at the entrance and exit occur during processing, resulting in poor precision and quality of the machined hole;

(2) The device has a larger volume and a lower degree of intelligence.

Therefore, a more intelligent and compact processing device is required to realize high-quality and efficient hole-making processing of carbon fiber (CFRP)/titanium alloy laminates.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an adjustment device for an eccentric sleeve type screw hole-making equipment, so as to solve the above-mentioned problems in the prior art.

For achieving the above object, the present invention provides the following scheme:

The invention provides an adjustment device for an eccentric sleeve type screw hole-making equipment, comprising:

An eccentric shifting claw sleeve module, the eccentric shifting claw sleeve module includes a socket module base, a stepped outer eccentric sleeve, a rear shifting claw inner eccentric sleeve, a front shifting claw inner eccentric sleeve, a rotating spindle and a rotating motor, The stepped outer eccentric sleeve is sleeved in the sleeve module base and is rotatably connected with the sleeve module base, and the rotating motor is arranged on the sleeve module base and eccentric with the stepped outer The sleeves are connected; the inner eccentric sleeve of the rear shifting claw and the inner eccentric sleeve of the front shifting claw are successively sheathed in the stepped outer eccentric sleeve, and the rotating spindle is successively sheathed in the rear shifting claw inside the eccentric sleeve and the inner eccentric sleeve of the front shifting claw, and between the rotating spindle and the inner eccentric sleeve of the rear shifting claw, and between the rotating spindle and the inner eccentric sleeve of the rear shifting claw All are provided with spherical sliding bearings; the inner eccentric sleeve of the rear claw, the inner eccentric sleeve of the front claw and the stepped outer eccentric sleeve are not coincident with the axis of their own outer contour, On the end face of the inner eccentric sleeve of the rear shifting claw close to the inner eccentric sleeve of the front shifting claw, a rear shifting claw is arranged at an interval of 90° per circumference, and the inner eccentric sleeve of the front shifting claw is close to the rear shifting claw. The end face of the inner eccentric sleeve is provided with a front shifting claw at an interval of 180° per circumference. When the inner eccentric sleeve of the front shifting claw rotates, the rear shifting claw can be driven by the front shifting claw to drive the rear shifting claw. The inner eccentric sleeve rotates;

A contact-type end-face electromagnetic friction disk module, the contact-type end-face electromagnetic friction disk module is arranged on one side of the eccentric claw sleeve module, and includes an electromagnetic driver and a connection part connected to the electromagnetic driver, the When the electromagnetic driver is not powered, the connecting portion can axially press the inner eccentric sleeve of the front shifting claw under the action of the elastic member, so that the inner eccentric sleeve of the front shifting claw and the stepped outer eccentric The sleeve is locked, and when the electromagnetic driver is powered on, the connecting portion can move away from the eccentric sleeve in the front claw under the magnetic attraction of the electromagnetic driver, so that the eccentric sleeve in the front claw can be Separated from the stepped outer eccentric sleeve;

An anti-rotation claw disk module, the anti-rotation claw disk module includes an anti-rotation component and a power supply component, and the anti-rotation component can clamp the contact-type end face electromagnetic friction disk module to prevent it from following the stepped outer eccentric sleeve rotating; the power supply component is used to electrically connect with the electromagnetic driver when the anti-rotation component is clamped with the contact-type end face electromagnetic friction disk module, so as to enable the electromagnetic driver to be powered;

The feeding module is used to drive the anti-rotation claw plate module and the contact-type end face electromagnetic friction plate module to approach or move away from each other, so as to control the power-on or power-off of the electromagnetic driver.

Optionally, the electromagnetic driver is a ring electromagnetic driver; the contact-type end face electromagnetic friction disk module further includes a magnetic drive hollow convex disk, an anti-rotation stepped friction disk and a hollow inner cylinder drive disk, and the magnetic drive hollow convex disk Located at the end of the stepped outer eccentric sleeve where the inner eccentric sleeve of the front claw is installed, the annular electromagnetic driver is arranged in close contact with the outer wall of the annular stepped groove on the end face of the hollow convex disc of the magnetic drive. The wires of the electromagnetic driver are led out through the bottom through holes of the annular stepped groove and connected to the copper electrodes located on one end surface of the hollow convex plate of the magnetic drive; the elastic member is arranged in the annular stepped groove In the gap between it and the annular electromagnetic driver, the anti-rotation stepped friction disc is installed in the hollow convex plate of the magnetic drive through a sliding key and pressed on the elastic member and the annular electromagnetic driver. The hollow inner cylinder transmission disc extends into the inner hole of the magnetic drive hollow convex disc, and the annular end faces at both ends of the hollow inner cylinder transmission disc are in close contact with the magnetic drive hollow convex disc and the anti-rotation stepped friction disc respectively. The end with the friction plate attached.

Optionally, the contact-type end face electromagnetic friction disc module further includes a light-sensing angle detection original, and the light-sensing angle detection original is covered with a brass wear-reducing sleeve, and the brass wear-reducing sleeve is installed on the In the through hole of the hollow inner cylinder drive disc, the cable of the photosensitive angle detection original is led out to the inner hole of the hollow inner cylinder transmission disc through the through hole; the photoelectric induction interface of the photosensitive angle detection original is vertically upward , when the annular electromagnetic driver is powered on, the anti-rotation stepped friction disc moves in the axial direction away from the hollow inner cylinder drive disc under the action of magnetic attraction.

Optionally, the elastic member is a high stiffness return spring.

Optionally, the feeding module is a dual-motor feeding module, which includes a fixed frame, a feeding execution motor, a feeding ball screw, an adjusting ball screw, a screw support seat, a guide rail and a screw nut slider; the feeding ball screw and the adjusting ball screw are respectively supported and arranged on the fixed frame through the screw support seat, and the feeding ball screw and the adjusting ball screw are the same as the adjusting ball screw. The guide rail is arranged in parallel with one side of the feeding ball screw and one side of the adjusting ball screw; the feeding ball screw and the adjusting ball screw are respectively A screw nut slider is threadedly installed, and the screw nut slider is slidably matched with the guide rail; the feed ball screw and the adjustment ball screw are respectively connected with a feed execution motor connection, the anti-rotation claw plate module and the eccentric claw sleeve module are respectively arranged on the two sets of the lead screw nut sliders.

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 slider on the adjusting ball screw On the top, the anti-rotation claw plate module is arranged on the lead screw nut slider on the feed ball screw.

Optionally, the rotating electrical machine is a hollow DC servo motor, the inner ring of the hollow DC servo motor is fixed on the stepped outer eccentric sleeve, and the outer ring is fixed on the inner wall of the sleeve module base.

Optionally, the eccentric claw sleeve module further includes an absolute circular grating and a circular grating reading head, and the absolute circular grating and the hollow DC servo motor are installed on the same end of the stepped outer eccentric sleeve. , the circular grating reading head is arranged on the hollow DC servo motor, and the circular grating reading head is located above the absolute circular grating.

Optionally, the anti-rotation claw plate module includes a curved inward-extending anti-rotation positioning claw plate, a cross chute follow-up adjustment plate, a slotted chute hub plate, a square low-friction unilateral fixed slider and an adjustment plate for positioning. The base; the curved inward-extending anti-rotation positioning claw plate, the cross-shaped chute follow-up adjustment plate and the in-line chute hub plate are installed in sequence from left to right, and the in-line chute hub plate is installed On the positioning base of the adjustment disk; the right side of the curved inwardly extending anti-rotation positioning claw disk is provided with two non-penetrating square grooves symmetrically distributed along the radial direction, and the non-penetrating square grooves are provided with axial communication holes. The square low-friction unilateral fixed sliding block is respectively installed in the two non-penetrating square grooves through the threaded holes on the left side thereof, and the right end face of the square low-friction unilateral fixed sliding block is close to the The bottom end face of the non-penetrating chute on the left end face of the cross chute follow-up adjustment disc, the rollers on both sides of the square low-friction unilateral fixed slider are in rolling contact with the side wall of the non-penetrating square groove; the A square low-friction unilateral fixed sliding block is respectively installed in the two horizontal non-penetrating square grooves of the cross chute follow-up adjustment plate, and the right end face of the square low-friction unilateral fixed sliding block is close to the word The horizontal non-penetrating bottom end face of the square groove on the left end face of the chute hub, the rollers on both sides of the square low-friction unilateral fixed slider and the non-penetrating side on the left end face of the inline chute hub. The side walls of the penetrating square groove are in rolling contact.

Optionally, the curved inward-extending anti-rotation positioning claw disk, the cross chute follow-up adjustment disk, and the in-line chute hub disk are all disc structures with the same outer diameter; The inwardly extending anti-rotation positioning claw plate and the cross sliding groove follow-up adjustment plate are coaxially provided with a through inner hole.

The present invention has achieved the following technical effects with respect to the prior art:

The adjusting device of the eccentric sleeve type screw hole-making equipment of the present invention controls the inner eccentric sleeve of the front claw and the stepped outer eccentric sleeve through the contact and separation of the contact-type end face electromagnetic friction plate module and the anti-rotation claw plate module. The eccentricity and inclination adjustment of the axis where the tool is located relative to the axis of the hole made can be realized. The present invention combines the advantages of low cutting force, low inertia vibration and low impact force with eccentric milling, and organically combines eccentric milling and inclination milling to meet the requirements of inclination milling, eccentric milling, eccentric milling first and then inclination milling. Hole and eccentric milling hole and other processing requirements, solve the carbon fiber reinforced composite (CFRP)/titanium alloy laminated material when making holes, the carbon fiber is prone to delamination and burrs, the titanium alloy has flash, and the processing parameters of two different materials Inconsistent hole-making accuracy caused by difficult matching effectively improves the hole-making accuracy and processing efficiency of carbon fiber reinforced composites (CFRP)/titanium alloy laminates.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of the overall structure of an adjustment device of an eccentric sleeve type screw hole-making equipment disclosed in an embodiment of the present invention;

Fig. 2 is the main sectional view of the anti-rotation claw plate module disclosed in the embodiment of the present invention;

3 is a front cross-sectional view of a contact-type end face electromagnetic friction disk module disclosed in an embodiment of the present invention.

4 is a front cross-sectional view of an eccentric claw sleeve module disclosed in an embodiment of the present invention;

5 is a schematic structural diagram of a magnetic drive hollow convex plate disclosed in an embodiment of the present invention;

Fig. 6 is the A-A sectional view of Fig. 5;

7 is a front cross-sectional view of an anti-rotation stepped friction disc disclosed in an embodiment of the present invention;

8 is a front cross-sectional view of the annular electromagnetic driver disclosed in an embodiment of the present invention;

FIG. 9 is a front cross-sectional view of the hollow inner cylinder transmission disk disclosed in the embodiment of the present invention.

Among them, the reference numerals are:

1. Anti-rotation claw plate module; 1-1. Curved inward-extending anti-rotation positioning claw plate; 1-2. Cross chute follow-up adjustment plate; 1-3, Slotted chute hub plate; 1-4, Square low-friction unilateral fixed slider; 1-5, adjusting disk positioning base 1-5;

2. Contact-type end face electromagnetic friction disc module; 2-1, Magnetic drive hollow convex disc; 2-2, Anti-rotation stepped friction disc; 2-3, Ring electromagnetic drive; 2-4, Hollow inner cylinder drive disc; 2 -5. The original light-sensing angle detection; 2-6. High stiffness return spring;

3. Eccentric claw sleeve module; 3-1, sleeve module base; 3-2, stepped outer eccentric sleeve; 3-3, rear claw inner eccentric sleeve; 3-4, front claw inner eccentric Sleeve; 3-5, spherical plain bearing; 3-6, absolute circular grating; 3-7, circular grating reading head; 3-8, rotating spindle; 3-9, single row radial ball bearing; 3-10, Hollow DC servo motor;

4. Double motor feed module; 4-1, fixed frame; 4-2, feed execution motor; 4-3, feed ball screw; 4-4, adjusting ball screw; 4-5, lead screw Support seat; 4-6, lead screw nut slider.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

One of the objectives of the present invention is to provide an adjustment device for an eccentric sleeve type screw hole-making equipment, which mainly solves the problems of interlayer spalling of the hole wall and burrs at the entrance and exit that occur during the processing of carbon fiber (CFRP)/titanium alloy laminate materials. The problem of poor hole accuracy and quality.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in FIGS. 1 to 9 , this embodiment provides an adjustment device for an eccentric sleeve type screw hole-making equipment, specifically a push-type eccentric declination processing adjustment device, which mainly includes an anti-rotation claw plate module 1, a contact Type end face electromagnetic friction disc module 2, eccentric claw sleeve module 3 and dual motor feed module 4. The double-motor feed module 4 is installed with the eccentric claw sleeve module 3 and the anti-rotation claw disc module 1 in sequence from left to right, and the contact-type end face electromagnetic friction disk module 2 is installed at the rear of the eccentric claw sleeve module 3 and located at the end of the eccentric claw sleeve module 3. Between the eccentric claw sleeve module 3 and the anti-rotation claw plate module 1 . In this embodiment, the contact-type end face electromagnetic friction disk module 2 is located in the middle of the equipment, the eccentric claw shifting sleeve module 3 and the anti-rotation claw disk module 1 are located at the front end and the end of the equipment, respectively; the eccentric shifting claw sleeve module 3 and the anti-rotation claw disk Modules 1 are installed on the dual-motor feed module 4. Through the contact and separation of the contact-type end face electromagnetic friction plate module 2 and the anti-rotation claw plate module 1, the separation and synchronous rotation between the inner eccentric sleeve of the front claw and the stepped outer eccentric sleeve are controlled, so as to realize the relative axis of the tool. The eccentricity and inclination of the axis of the prepared hole are adjusted, and the tool revolves around the axis of the prepared hole under the drive of the eccentric claw sleeve module. Compared with other adjustment devices for helical hole milling equipment, this embodiment has the advantages of high adjustment accuracy, simple and compact structure, high degree of automation, and integration of moving parts.

In this embodiment, as shown in FIG. 2 , the anti-rotation claw plate module 1 includes a curved inward-extending anti-rotation positioning claw plate 1-1, a cross-slide follow-up adjustment plate 1-2, and a straight-line slot hub plate 1 -3. Square low-friction unilateral fixed slider 1-4 and adjustment disk positioning base 1-5; curved inward-extending anti-rotation positioning claw disk 1-1, cross chute follow-up adjustment disk 1-2 and in-line sliding The slot hub plate 1-3 is installed from left to right, and the right side of the curved inward-extending anti-rotation positioning claw plate 1-1 has two non-penetrating square grooves symmetrically distributed along the radial direction, and there is a shaft in the non-penetrating square groove. Through holes; square low-friction unilateral fixed sliders 1-4 are respectively installed in two non-penetrating square grooves through the threaded holes on the left side, and the right end face of square low-friction unilateral fixed sliders 1-4 is close to the cross slide The bottom end face of the non-penetrating chute on the left end face of the groove follow-up adjustment plate 1-2, the rollers on both sides of the square low-friction unilateral fixed slider 1-4 are in rolling contact with the side wall of the non-penetrating square groove; A square low-friction unilateral fixed slider 1-4 is installed in the two horizontal non-penetrating square grooves on the right side of the adjustment plate 1-2 through bolts. The bottom end face of the horizontal non-penetrating square groove on the left end face of the hub plate 1-3 of the word chute, the rollers on both sides of the square low-friction unilateral fixed slider 1-4 are in rolling contact with the side wall of the non-penetrating square groove; The extension anti-rotation positioning claw plate 1-1, the word chute follow-up adjustment plate 1-2 and the in-line chute hub plate 1-3 are all disc structures with the same outer diameter, and the curved inner extension anti-rotation positioning claw plate 1-1 and the cross chute follow-up adjustment plate 1-2 are both provided with a through inner hole, the axis of the through hole and the respective curved inward extension anti-rotation positioning claw plate 1-1 and the cross chute follow-up adjustment The centers of the outer contours of disks 1-2 coincide.

In this embodiment, as shown in FIG. 3 , the contact-type end face electromagnetic friction disk module 2 mainly includes a magnetic drive hollow convex disk 2-1, an anti-rotation stepped friction disk 2-2, a ring electromagnetic driver 2-3, and a hollow inner cylinder The drive plate 2-4, the light sensing angle detection element 2-5 and the high-rigidity return spring 2-6; the annular electromagnetic driver 2-3 is installed close to the outer wall of the annular stepped groove on the end face of the hollow convex plate 2-1 of the magnetic drive. The wires of the driver 2-3 are led out through the through hole at the bottom of the stepped groove and connected to the square copper electrode on the right end face of the hollow convex plate 2-1 of the magnetic drive; the high-rigidity return spring 2-6 is placed on the hollow convex plate of the magnetic drive. In the gap between the annular stepped groove on the end face of the disk 2-1 and the annular electromagnetic driver 2-3, the anti-rotation stepped friction disk 2-2 is installed in the hollow convex disk 2-1 of the magnetic drive through a sliding key and pressed against a high rigidity On the return spring 2-6 and the annular electromagnetic driver 2-3, the hollow inner cylinder drive disc 2-4 extends into the inner hole of the magnetic drive hollow convex disc 2-1 from the left, and the annular end face of the hollow inner cylinder drive disc 2-4 is tight. The left end face of the magnetic drive hollow convex plate 2-1 and the anti-rotation stepped friction plate 2-2 are pasted with the friction plate. The annular electromagnetic driver 2-3 and the high-rigidity return spring 2-6 are both installed in the hollow convex plate 2-1 of the magnetic drive, and the anti-rotation stepped friction plate 2-2 can be set on the left side of the annular electromagnetic driver 2-3 through the sliding key. The optical sensing angle detection element 2-5 is installed in the hollow inner cylinder drive plate 2-4, the magnetic drive hollow convex plate 2-1 and the hollow inner cylinder drive plate 2-4 are respectively installed in the stepped outer eccentric sleeve 3- 2 and the eccentric sleeve 3-4 in the front claw. When the annular electromagnetic driver 2-3 is electrified, the anti-rotation stepped friction disc 2-2 moves to the right in the axial direction under the action of the magnetic force and separates from the hollow inner cylinder drive disc.

Further, in this embodiment, the hollow inner cylinder drive plate 2-4 is provided with a through hole, and the right end face and the position corresponding to the curved inward extension anti-rotation positioning claw plate 1-1 are opened with a depth of the hollow inner cylinder drive plate. 2-4 A blind hole with a thickness of one quarter, the entrance of the blind hole is a conical guide section, a through hole is opened on the right end face of the hollow inner cylinder drive plate 2-4 along the axial direction, and an interference fit is installed in the through hole. Brass anti-friction sleeve; the photoelectric induction receiving end of the photosensitive angle detection element 2-5 is glued vertically upward and fixed in the brass anti-friction sleeve. The photosensitive angle detection element 2-5 is normally closed. When the receiving end detects the shading block, the photosensitive angle detection element 2-5 will output a characteristic current signal. The cable of the light sensing angle detection element 2-5 is led out through the left side of the through hole to the inner hole of the hollow inner cylinder drive plate 2-4.

Further, in this embodiment, the anti-rotation stepped friction disc 2-2 is a stepped hollow disc, and the right side is a cylindrical boss with a through hole in the middle, and is evenly spaced at 45° along the wall of the through hole. There are sliding keys, and the left end face is provided with laminated friction discs. The laminated friction discs are stacked in the order of asbestos fiber friction discs, powder metallurgy friction discs, and carbon fiber friction discs and installed on the anti-rotation stepped friction disc 2 with epoxy resin. -2 On the left end face of the anti-rotation stepped friction disc 2-2, 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 Press the anti-rotation stepped friction disc 2-2 on the hollow inner cylinder transmission disc 2-4 as an elastic part, and make the anti-rotation stepped friction disc 2-2 and the hollow inner cylinder drive through the laminated friction plate and the sliding key Disks 2-4 keep rotating in synchrony.

Further, in this embodiment, the magnetic drive hollow convex disc 2-1 is a circular disc with a through hole at the center, and a concentric upper and lower narrow non-penetrating stepped cylindrical groove is arranged outside the through hole; the magnetic drive is hollow. The right end face of the convex plate 2-1 is provided with a copper electrode and the electrode is connected to the annular electromagnetic driver 2-3. The annular electromagnetic driver 1-3 can be powered through the copper electrode. The right end face of the magnetic drive hollow convex plate 2-1 A light-shielding block is arranged near the inner hole wall, and the light-shielding blocks are evenly distributed along the inner hole wall at 60° intervals. The annular electromagnetic driver 2-3 is an annular copper winding, and the annular copper winding is arranged at 30° intervals along the circumference. There are iron cores, and each iron core is tightly wound with copper wire clockwise along the axial direction. After the ring electromagnetic driver 2-3 is electrified, the magnetic force will suck back the anti-rotation stepped friction disc 2-2, and the anti-rotation stepped friction disc 2 -2 is disconnected from the hollow inner cylinder drive disc 2-4.

In this embodiment, as shown in FIG. 4 , the eccentric claw sleeve module 3 mainly includes a sleeve module base 3-1, a stepped outer eccentric sleeve 3-2, a rear claw inner eccentric sleeve 3-3, a front Claw inner eccentric sleeve 3-4, spherical sliding bearing 3-5, absolute circular grating 3-6, circular grating reading head 3-7, rotating spindle 3-8, single row radial ball bearing 3-9, hollow DC The servo motor 3-10 and the bearing dustproof end cover; the inner eccentric sleeve 3-3 of the rear claw and the inner eccentric sleeve 3-4 of the front claw are respectively installed in the stepped outer eccentric sleeve 3-2. The left end face of the inner eccentric sleeve 3-3 of the claw is flush with the left end face of the stepped outer eccentric sleeve; the right end face of the inner eccentric sleeve 3-4 of the front claw is flush with the end of the stepped outer eccentric sleeve 3-2 The surface is flush; the hollow inner cylinder drive plate 2-4 is fixedly connected to the inner eccentric sleeve 3-4 of the front claw by bolts; the number of spherical sliding bearings 3-5 is 2, which are respectively installed in the eccentric sleeve 3-4 of the rear claw. 3 and the inner eccentric sleeve 3-4 of the front claw, and close to the inner hole shoulder of the two eccentric sleeves; the eccentric sleeve 3-3 in the rear claw, the eccentric sleeve 3-4 in the front claw and the stepped The central axis of the inner hole of the outer eccentric sleeve 3-2 does not coincide with the axis of its own outer contour; the right end surface of the inner eccentric sleeve 3-3 of the rear claw is provided with 4 uniformly spaced 90° intervals along the circumference of the small-diameter stepped hole. There are two rear claws, and the rear claws are square claws; correspondingly, on the left end face of the eccentric sleeve 3-4 in the front claws, there are front claws arranged oppositely at intervals of 180° along the through holes at the end face; When the eccentric sleeve 3-4 rotates counterclockwise, the eccentric sleeve 3-3 in the rear claw can be driven to rotate together by the front claw installed on the left end face, and the eccentric sleeve 3-4 in the front claw rotates clockwise. When rotating, since the claw interval between the eccentric sleeve 3-4 in the front claw and the eccentric sleeve 3-3 in the rear claw is 180°, at this time, the eccentric sleeve 3-4 in the front claw rotates 180 degrees alone. °, until the front claw contacts the rear claw of the eccentric sleeve 3-3 in the rear claw, and drives the eccentric sleeve 3-3 in the rear claw to rotate clockwise together. The rotating main shaft 3-8 is installed in the inner ring of the front and rear spherical sliding bearings; the single-row radial ball bearings 3-9 have two groups, two in each group, which are respectively installed on both ends of the stepped outer eccentric sleeve 3-2, An inner ring spacer 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 is glued and fixed to the inner hole wall of the sleeve module base; absolute type The circular grating 3-6 is installed on the stepped surface at the rear end of the stepped outer eccentric sleeve 3-2 near the hollow DC servo motor 3-10, and the circular grating reading head 3-7 is arranged on the right side of the hollow DC servo motor 3-10 end face, and ensure that the reading head is located directly above the absolute circular grating 3-6 during installation; the bearing dust cover is installed at the left end face of the sleeve module base 3-1 through the threaded hole of the outer ring; the magnetic drive hollow convex plate 2-1 is installed at the tail of stepped outer eccentric sleeve 3-2.

In this embodiment, as shown in FIG. 1 , the dual-motor feed module 4 mainly includes a fixed frame 4-1, a feed execution motor 4-2, a feed ball screw 4-3, and an adjustment ball screw 4-4 , Screw support seat 4-5 and screw nut slider 4-6. The anti-rotation claw plate module 1 and the eccentric claw sleeve module 3 are respectively fixed on the two sets of lead screw nut sliders 4-6 by bolts, wherein the lead screw nut slider 4-6 where the eccentric claw sleeve module 3 is located It is installed on the adjusting ball screw 4-4 with a longer front end. The adjusting ball screw 4-4 passes through several screw support seats 4-5 and is connected to the output shaft of a feed execution motor 4-2 through a coupling. The lead screw nut slider 4-6 where the anti-rotation claw plate module 1 is located is installed on the feed ball screw 4-3 with a short rear end, and the feed ball screw 4-3 passes through several screw support seats 4- 5 is connected with the output shaft of another feed execution motor 4-2 through a coupling; the two feed execution motors 4-2 are respectively installed in the middle and tail of the fixed frame 4-1 through the threaded holes at the rear end.

In this embodiment, the use method of the adjusting device of the eccentric sleeve type screw hole making equipment can be carried out according to the following steps:

(1) Turn on the power supply, the hollow DC servo motor 3-10 drives the stepped outer eccentric sleeve 3-2 and the magnetic drive hollow convex plate 2-1 to rotate clockwise until the light-sensing angle detection element 2-5 emits low-frequency electrical pulses signal, the hollow DC servo motor 3-10 is powered off, and the eccentric claw sleeve module 3 is reset;

(2) Select the hole-making method according to the process requirements: inclination spiral milling hole or eccentric spiral milling hole;

(3) Input the hole-making parameters according to the process requirements: tool revolution speed, high-speed electric spindle speed, device feed speed, number of holes, hole diameter, hole depth, etc.;

(4) The hollow DC servo motor 3-10 is powered and rotated. If the machining method is eccentric spiral milling to make holes, the hollow DC servo motor 3-10 drives the stepped outer eccentric sleeve 3-2 to rotate clockwise to adjust the eccentric distance and make holes. If the method is inclination helical milling, the hollow DC servo motor 3-10 rotates counterclockwise to adjust the declination value;

(5) The dual-motor feed module 4 drives the anti-rotation claw plate module 1 to move to the right and is disconnected from the contact-type end face electromagnetic friction plate module 2. The hollow DC servo motor 3-10 and the rotating spindle 3-8 are powered on according to the input parameters Turn to set value;

(6) The dual-motor feed module 4 drives the eccentric claw sleeve module 3 and the contact-type end face electromagnetic friction disc module 2 to move and feed according to the set value;

(7) The dual-motor feed module 4 pushes the eccentric claw sleeve module 3 and the contact-type end face electromagnetic friction disc module 2 to return to the origin; determine whether the number of holes to be made reaches the set value, and if it does not reach the set value, continue processing, If the number of holes is satisfied, the hollow DC servo motor 3-10 and the rotating spindle 3-8 stand by and wait for the command.

The working principle of the adjustment device of the eccentric sleeve type screw hole-making equipment of the present embodiment is described in detail below in conjunction with the use method of the adjustment device of the above-mentioned eccentric sleeve type screw hole-making equipment:

The anti-rotation claw plate module 1 moves close to the contact-type end face electromagnetic friction plate module 2 under the drive of the feed execution motor 4-2 connected with the feed ball screw 4-3. The electrodes on the anti-rotation claw plate module 1 are connected to the magnetic The electrodes on the right end surface of the hollow convex disk 2-1 are in contact, the annular electromagnetic driver 2-3 is energized, and the anti-rotation stepped friction disk 2-2 moves to the right in the axial direction under the action of the magnetic force, and the magnetic drive hollow convex The disc 2-1 is disconnected from the hollow inner cylinder drive disc 2-4. At this time, the hollow DC servo motor 3-10 at the rear end of the eccentric claw sleeve module 3 drives the stepped outer eccentric sleeve 3-2 to rotate clockwise. Due to the magnetic force of the annular electromagnetic driver 2-3 and the limiting effect of the rear anti-rotation claw plate module 1, the inner eccentric sleeve 3-4 of the front claw will not rotate with the stepped outer eccentric sleeve 3-2. When the stepped outer eccentric sleeve 3-2 is disconnected from the inner eccentric sleeve 3-3 of the rear claw, the clockwise rotation of the stepped outer eccentric sleeve 3-2 makes the inner eccentric sleeve 3-3 of the rear claw. Radial offset occurs with the inner eccentric sleeve 3-4 of the front claw and the rotating spindle 3-8 installed inside the two (the rotating spindle 3-8 is a high-speed motorized spindle), so as to complete the eccentric adjustment of the device; due to the internal and external eccentricity There is a certain amount of friction between the sleeves, the inner eccentric sleeve 3-3 of the rear derailleur has a tendency to rotate clockwise with the stepped outer eccentric sleeve 3-2, but at this time, the anti-rotation claw plate module 1 will restrict the rear derailleur The axial rotational freedom of the eccentric sleeve 3-3 in the claw ensures the accuracy of the eccentric adjustment. After the eccentric distance adjustment is completed, the dual-motor feed module 4 drives the anti-rotation claw plate module 1 to move to the right, and the electrodes on the anti-rotation claw plate module 1 are far away from the annular electromagnetic driver 2-3, and the annular electromagnetic driver 2-3 loses power. When the magnetic force disappears, the high-rigidity return spring 2-6 pushes out the hollow inner cylinder drive disc 2-4 and contacts the inclined eccentric inner cylinder drive disc. Under the action of friction, the eccentric sleeve 3-3 in the rear claw can be connected The stepped outer eccentric sleeve 3-2 rotates synchronously to complete the revolution movement of the rotating main shaft 3-8.

It can be seen that, compared with other similar eccentric processing devices, the present embodiment uses the anti-rotation claw plate module 1, so that when the hollow hollow DC servo motor 3-10 drives the stepped outer eccentric sleeve 3-2 to rotate, the front claw is rotated. The inner eccentric sleeve 3-4 can translate with the inner eccentric hole of the stepped outer eccentric sleeve 3-2 in the vertical plane without rotating, which eliminates the friction between the inner and outer eccentric cylinders during the adjustment of the eccentric inclination. adjustment error. At the same time, the anti-rotation claw plate module 1 adopts a plug-and-play design idea, which moves forward during adjustment and transitions between the anti-swing pin and the sector-shaped positioning block through the conical head on the curved inward anti-rotation positioning claw plate 1-1. It is positioned and connected with the processing part, and the adjustment is completed and moved backward and disconnected, which reduces the energy consumption of the rotating power source of the device.

In this 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 to realize the connection between the stepped outer eccentric sleeve 3-2 and the front claw inner eccentric sleeve 3-4. It can be locked and unlocked between, without adding another power source to control the rotation of the inner eccentric cylinder, which reduces the cost and reduces the volume and weight of the device. In addition, due to the reduction in the number of power sources, the complexity of the device control system is reduced, the reliability of the device is improved and the structure thereof is more compact.

It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. . Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes that come within the meaning and range of equivalents of , are intended to be embraced within the invention, and any reference signs in the claims shall not be construed as limiting the involved claim.

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present 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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